Patent Publication Number: US-9893461-B2

Title: Continuable waterproof cable, continuable waterproof power module, and waterproof terminal assembly

Description:
CROSS-REFERENCES TO RELATED APPLICATIONS 
     This non-provisional application claims priority under 35 U.S.C. §119(a) on Patent Application No. 103109378 filed in Taiwan, R.O.C. on 2014 Mar. 14, the entire contents of which are hereby incorporated by reference. 
     BACKGROUND 
     Technical Field 
     The instant disclosure relates to a waterproof terminal, in particular, to a continuable waterproof cable, a continuable waterproof power module, and a waterproof terminal assembly. 
     Related Art 
     With the advancement of technology, instead of looking up dictionary, books, newspapers, or magazines, many people may use computers or smart phones finding information. Besides, not only talking in a face-to-face manner, people gradually use communication software and apps to chat with their friend. Telecommunication transmission technologies become a kind of necessity in daily life. 
     To accomplish the telecommunication transmissions among different countries, conventional submarine cables are connected between the telecommunication transmission systems among different countries. Accordingly, the communication system (including network and telecommunication systems) are established among countries. However, the conventional submarine cables may be damaged by the anchors or the trawls of fish boats or by aquatic animals or plants. The damaged parts of the conventional submarine cables have to be dragged out of the water in advance before the conventional submarine cables are to be repaired. Alternatively, the repairmen have to take on the repair ship particularly manufactured for repairing the conventional submarine cables. Accordingly, the procedure for repairing the conventional submarine cables is complicated and costly. 
     SUMMARY 
     In one implementation aspect, a continuable waterproof cable is provided and comprises a cable body, a first transmitting member, a first waterproof elastic member, a second transmitting member, a second waterproof elastic member, and a third transmitting member. The cable body has a connecting end and a continuing end opposite to the connecting end. The first transmitting member has a first end and a second end. The first end is exposed out of the connecting end. The first waterproof elastic member is disposed at the connecting end. The second transmitting member is disposed at the continuing end. The second transmitting member is coupled to the first transmitting member, and the second transmitting member is adapted to the first end of the first transmitting member. The second waterproof elastic member is disposed at the continuing end. The third transmitting member is in the cable body. The third transmitting member has a fixed end and a free end. The fixed end is at the continuing end, the free end is detachably coupled to the first transmitting member, and the free end is capable to be apart from the transmitting member by a force. 
     In one implementation aspect, a waterproof terminal assembly is provided and comprises a male terminal and a female terminal. The male terminal comprises a male terminal body, a first waterproof elastic member, a first socket, a first securing portion, a first transmitting member, and a free transmitting member. The first waterproof elastic member is disposed at an end portion of the male terminal body. The first socket is fitted over the outer periphery of the male terminal body. The first securing portion is defined around the inner wall of the first socket. The first transmitting portion is disposed at the end portion of the male terminal body. The free transmitting member is disposed at the end portion of the male terminal body and detachably coupled to the first transmitting member. The female terminal comprises a female terminal body, a second waterproof elastic member, a second socket, a second securing portion, a second transmitting member, and a fixed transmitting member. The second waterproof elastic member is disposed at an end portion of the female terminal body. The second socket is fitted over the outer periphery of the female terminal body, and the inner diameter of the first socket is substantially equal to the outer diameter of the second socket. The second securing portion is defined around the outer wall of the second socket. The second transmitting member is disposed at the end portion of the female terminal body, and the second transmitting member is adapted to be coupled with the first transmitting member. The fixed transmitting member is disposed at the end portion of the female terminal body and spaced from the second transmitting member. Wherein, when the male terminal is connected to the female terminal, the first transmitting member is connected to the second transmitting member, and the second transmitting member pushes the free transmitting member apart from the first transmitting member so that the free transmitting member is coupled to the fixed transmitting member, the first waterproof elastic member is attached to the end portion of the female terminal body, and the second waterproof elastic member is attached to the end portion of the male terminal body. 
     In one implementation aspect, a continuable waterproof power module is provided and comprises a housing, a battery core, and the waterproof terminal assembly. The battery core is received in the housing. The male terminal is disposed at a first side of the housing, the female terminal is disposed at the first side or a second side of the housing, wherein the second side is not opposite to the first side. The male terminal and the female terminal are electrically connected to the battery core. 
     Based on the above, the workload, the cost, and the time for assembling and repairing the submarine cables can be reduced by the waterproof feature provided by the continuable waterproof cable. In addition, the waterproof terminal assembly can be adapted to couple with the continuable waterproof cable or the continuable waterproof power module. Accordingly, transmission of electrical signals, optical signals, acoustic signals, electricity signals, or network signals can be achieved, by connecting the continuable waterproof cable in sequence. 
     Detailed description of the characteristics and the advantages of the disclosure is shown in the following embodiments, the technical content and the implementation of the disclosure should be readily apparent to any person skilled in the art from the detailed description, and the purposes and the advantages of the disclosure should be readily understood by any person skilled in the art with reference to content, claims and drawings in the disclosure. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The instant disclosure will become more fully understood from the detailed description given herein below for illustration only, and thus not limitative of the instant disclosure, wherein: 
         FIG. 1A  illustrates a perspective view of a first embodiment of a continuable waterproof cable according to the instant disclosure; 
         FIG. 1B  illustrates a perspective view of the first embodiment of the continuable waterproof cable according to the instant disclosure, for one variation; 
         FIG. 1C  illustrates a top view of a continuing end of the first embodiment of the continuable waterproof cable according to the instant disclosure, for one variation; 
         FIG. 1D  illustrates a top view of a connecting end of the first embodiment of the continuable waterproof cable according to the instant disclosure, for one variation; 
         FIG. 2A  illustrates a cross-sectional view of the first embodiment of the continuable waterproof cable according to the instant disclosure; 
         FIG. 2B  illustrates a cross-sectional view of the first embodiment of the continuable waterproof cable according to the instant disclosure, for one variation; 
         FIG. 2C  illustrates a cross-sectional view of the first embodiment of the continuable waterproof cable according to the instant disclosure, for another variation; 
         FIG. 2D  illustrates a cross-sectional view of the first embodiment of the continuable waterproof cable according to the instant disclosure, for yet another variation; 
         FIG. 3A  is a schematic view illustrating two continuable waterproof cables according to the instant disclosure are connected with each other; 
         FIG. 3B  is a schematic view illustrating two continuable waterproof cables connected with each other according to the instant disclosure; 
         FIG. 3C  is an operational schematic view illustrating a first transmitting member is to be inserted into a waterproof elastomer, according to the first embodiment of the instant disclosure; 
         FIG. 3D  is an operational schematic view illustrating the first transmitting member is inserted into the waterproof elastomer, according to the first embodiment of the instant disclosure; 
         FIG. 4  illustrates a cross-sectional view of a second embodiment of a waterproof terminal assembly according to the instant disclosure; 
         FIG. 5  illustrates an operational schematic view of the second embodiment of the waterproof terminal assembly according to the instant disclosure; 
         FIG. 6  illustrates a perspective view of a third embodiment of a continuable waterproof power module according to the instant disclosure; 
         FIG. 7  illustrates a cross-sectional view of the third embodiment of the continuable waterproof power module according to the instant disclosure; and 
         FIG. 8  illustrates an operational schematic view of the third embodiment of the continuable waterproof power module according to the instant disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     Please refer to  FIG. 1A  to  FIG. 3D , illustrating a first embodiment of a continuable waterproof cable  100 .  FIG. 1A  and  FIG. 1B  illustrate perspective views of the continuable waterproof cable  100 .  FIG. 1C  and  FIG. 1D  respectively illustrate top views of a continuing end  202  and a connecting end  201  of the continuable waterproof cable  100 , for one variation.  FIG. 2A  to  FIG. 2D  illustrates cross-sectional views of the continuable waterproof cable  100 , for several variations.  FIG. 3A  and  FIG. 3B  are schematic views illustrating two continuable waterproof cables  100  are connected with each other.  FIG. 3C  and  FIG. 3D  are operational schematic views illustrating how a first transmitting member  21  is inserted into a waterproof elastomer  24 . Plural continuable waterproof cables  100  may be connected sequentially so as to transmit electrical signals, optical signals, acoustic signals, electricity signals, or network signals. 
     Please refer to  FIG. 1A  and  FIG. 1B . The continuable waterproof cable  100  comprises a cable body  20 , a first transmitting element  21 , a first waterproof elastic member  203 , a second transmitting element  22 , a second waterproof elastic member  204 , and a third transmitting member  23 . In this embodiment, the cable body  20  is a cylinder, but embodiments are not limited thereto. The cable body  20  may be formed as other shapes. In addition, to be adapted to the environments to where the continuable waterproof cable  100  places, the cable body  20  may have high mechanical strength or flexibility. Besides, to allow the transmission of electrical signals, optical signals, acoustic signals, electricity signals, or network signals under the sea or under humid environments, the cable body  20  may be an insulator. Here, the cable body  20  may be, but not limited to, made of insulation plastics. Alternatively, the cable body  20  may be made of carbon fiber, glass fiber, or other insulation materials. 
     The cable body  20  has a connecting end  201  and a continuing end  202  opposite to the connecting end  201 . The continuing end  202  is adapted to connect to the connecting end  201  of another continuable waterproof cable  100 , and the connecting end  201  is adapted to connect to the continuing end  202  of yet another continuable waterproof cable  100 , so that plural continuable waterproof cables may be connected sequentially. The first transmitting member  21  has a first end and a second end. The first end of the first transmitting member  21  is exposed out of the connecting end  201 . The second transmitting member  22  is disposed at the continuing end  202  and coupled to the first transmitting member  21 . Specifically, the second transmitting member  22  may be electrically connected (physically connected) or signally connected (indirectly connected) to the first transmitting member  21 . The first waterproof elastic member  203  is disposed at the connecting end  201 , and the second waterproof elastic member  204  is disposed at the continuing end  202 . Here, the first waterproof elastic member  203  and the second waterproof elastic member  204  may be, but not limited to, made of rubber. The first waterproof elastic member  203  and the second waterproof elastic member  204  may be made of other elastic materials. Here, the second transmitting member  22  is received in a receiving space  2024  defined at the continuing end  202 , and the second transmitting member  22  may be, but not limited to, coupled with the first transmitting member  21  via a wire embedded in the cable body  20 . Alternatively, the second transmitting member  22  may be integrally formed at the second end of the first transmitting member  21 , such that the first transmitting member  21  is coupled to the second transmitting member  22 . The second transmitting member  22  is adapted to be mated with the first end of the first transmitting member  21 . Therefore, as shown in  FIG. 3A , when a first continuable waterproof cable  100  (the lower continuable waterproof cable  100  shown in  FIG. 3A ) is connected to a second continuable waterproof cable  100  (the upper continuable waterproof cable  100  shown in  FIG. 3A ), the second transmitting member  22  of the second continuable waterproof cable  100  is mated with the first transmitting member  21  of the first continuable waterproof cable  100 . Consequently, transmission of electrical signals, optical signals, acoustic signals, electricity signals, or network signals can be achieved through the continuable waterproof cables  100  according to the instant disclosure. 
     The third transmitting member  23  is in the cable body  20 . The third transmitting member  23  has a fixed end  231  and a free end  232 . The fixed end  231  is secured at the continuing end  202 . The free end  232  is detachably coupled to the first transmitting member  21 , and the free end  232  is capable to be apart from the first transmitting member  21 . Specifically, as shown in  FIG. 3A , when the first continuable waterproof cable  100  is connected to the second continuable waterproof cable  100 , the second transmitting member  22  of the second continuable waterproof cable  100  pushes the free end  232  of the first continuable waterproof cable  100  apart from the first transmitting member  21  of the first continuable waterproof cable  100  so that the free end  232  of the first continuable waterproof cable  100  is coupled to the fixed end  231  of the second continuable waterproof cable  100 . Accordingly, electrical signals, acoustic signals, optical signals, electricity signals, or network signals may be transmitted between the continuable waterproof cables  100 . In addition, as shown in  FIG. 3A , when the first continuable waterproof cable  100  is connected to the second continuable waterproof cable  100 , the first waterproof elastic member  203  of the second continuable waterproof cable  100  is attached to the connecting end  201  of the first continuable waterproof cable  100 , and the second waterproof elastic member  204  of the first continuable waterproof cable  100  is attached to the continuing end  202  of the second continuable waterproof cable  100 . Therefore, the continuable waterproof cables  100  can be connected to each other in a watertight manner, and moist will not penetrate inside through the junction between the continuable waterproof cables  100 . In this embodiment, the first transmitting member  21 , the second transmitting member  22 , and the third transmitting member  23  are made with the cable body  20  via plastic injection molding techniques. That is, the aforementioned transmitting members  21 ,  22 ,  23  are arranged and disposed in a mold. Then, cable body  20  is formed with the transmitting members  21 ,  22 ,  23  by plastic injection molding, but embodiments are not limited thereto. Alternatively, the aforementioned transmitting members  21 ,  22 ,  23  may be manufactured in the cable body  20  via other techniques. 
     In addition, in this embodiment, the number of each set of transmitting members  21 ,  22 ,  23  is one, but embodiments are not limited thereto. Alternatively, plural first transmitting members  21 , plural second transmitting members  22 , and plural third transmitting members  23  may be embedded in one cable body  20 . As shown in  FIG. 1C  and  FIG. 1D , here, ten first ends of ten first transmitting members  21  are exposed out of the connecting end  201 , and ten second transmitting members  22  are disposed at the continuing end  202  and respectively coupled to the ten first transmitting members  21 . Twenty third transmitting members  23  are in the cable body  20 , each of the third transmitting members  23  has the fixed end  231  and the free end  232 . The fixed ends  231  are secured at the continuing end  202 , the free ends  232  are detachably coupled to the first transmitting members  21 , and the free ends  232  are capable to be apart from the first transmitting members  21 . The transmitting sets (each comprises one first transmitting member  21 , one second transmitting member  22 , and two third transmitting members  23 ) are provided for transmitting the same type of signals or different types of signals. For example, the first transmitting set to the eighth transmitting set may be provided for transmitting network signals, particularly, for transmitting signals used to be transmitted by a CAT-6 cable, the ninth transmitting set may be provided for transmitting electricity signals, and the tenth transmitting set may be provided for transmitting optical signals (e.g., the tenth transmitting set may be optical fibers). Accordingly, the transmitting sets allow composite signal transmission. It is understood that the described embodiments are provided for illustrative purpose, the number of the transmitting members in each cable body  20  is not limited thereto. 
     In one variation, please refer to  FIG. 1A ,  FIG. 2A , and  FIG. 3A , the connecting end comprises a positioning portion  2011 , and the positioning portion  2011  is defined at the center of the connecting end  201  to receive the first transmitting member  21  and the free end  232  of the third transmitting member  23 . Specifically, the positioning portion  2011  may be a recess defined at the center of the connecting end  201 . The continuing end  202  comprises a limiting portion  2021  and a slot  2022 , the limiting portion  2021  is defined at the center of the continuing end  202 , and the slot  2022  is defined at the center of the limiting portion  2021  to receive the second transmitting member  22  and the fixed end  231  of the third transmitting member  23 . Specifically, the limiting portion  2021  may be a protrusion defined at the center of the continuing end  202 . Accordingly, when the first continuable waterproof cable  100  is connected to the second continuable waterproof cable  100 , the positioning portion  2011  of the connecting end  201  of the first continuable waterproof cable  100  is mated with the limiting portion  2021  of the continuing end  202  of the second continuable waterproof cable  100 . Alternatively, in another variation, the continuing end  202  comprises a positioning portion at the center thereof to receive the second transmitting member  22  and the fixed end  231  of the third transmitting member  23 . Specifically, the positioning portion may be a recess defined at the center of the continuing end  202 . The connecting end  201  comprises a limiting portion and a slot, the limiting portion is at the center of the connecting end  201 , and the slot is defined at the center of the limiting portion to receive the first transmitting member  21  and the free end  232  of the third transmitting member  23 . Specifically, the limiting portion may be a protrusion defined at the center of the connecting end  201 . Accordingly, when the first continuable waterproof cable  100  is connected to the second continuable waterproof cable  100 , the limiting portion of the connecting end  201  of the first continuable waterproof cable  100  is mated with the positioning portion of the continuing end  202  of the second continuable waterproof cable  100 . Consequently, plural continuable waterproof cables  100  can be connected sequentially via the positioning portions and the limiting portions. 
     Please refer to  FIG. 1B ,  FIG. 2B  to  FIG. 2D , and  FIG. 3A  to  FIG. 3D . The continuable waterproof cable  100  further comprises a waterproof elastomer  24  disposed at the continuing end  202 . The waterproof elastomer  24  is substantially a cylindrical tubular structure and defines a channel  241  therethrough. Specifically, the waterproof elastomer  24  is placed on the second transmitting member  22  to protect the second transmitting member  22 . The waterproof elastomer  24  may be, but not limited to, made of soft and elastic materials, such as rubber, foam, silica gel or latex. The inner diameter of the channel  241  is less than the outer diameter of the first end of the first transmitting member  21 . In order to achieve the waterproof effect, the difference between the inner diameter of the channel  241  and the outer diameter of the first end of the first transmitting member  21  may be depended on the elasticity of the waterproof elastomer  24 . In other words, when the coefficient of elasticity of the waterproof elastomer  24  is higher, the outer diameter of the first end of the first transmitting member  21  may be much greater than the inner diameter of the channel  241 . On the other hand, when the coefficient of elasticity of the waterproof elastomer  24  is lower, the outer diameter of the first end of the first transmitting member  21  may be substantially equal to the inner diameter of the channel  241 . An annular protrusion  242  is formed at the inner wall of the channel  241 . In this embodiment, the annular protrusion  242  is substantially protruded toward the axial line of the waterproof elastomer  24  along a direction vertical to the inner wall of the channel  241 , to block moist from moving from one end of the channel  241  toward the other end of the channel  241 , such that the waterproof elastomer  24  itself is watertight. Please refer to  FIG. 3A  to  FIG. 3D , when the second transmitting member  22  of the second continuable waterproof cable  100  is to be coupled to the first transmitting member  21  of the first continuable waterproof cable  100 , the first transmitting member  21  of the first continuable waterproof cable  100  is inserted into the channel  241  of the waterproof elastomer  24  of the second continuable waterproof cable  100 , and the periphery of the first transmitting member  21  is enclosed by the inner wall of the channel  241  of the waterproof elastomer  24 , so that the first transmitting member  21  of the first continuable waterproof cable  100  is coupled to the second transmitting member  22  of the second continuable waterproof cable  100 . In addition, when the first transmitting member  21  of the first continuable waterproof cable  100  is inserted into the channel  241  of the waterproof elastomer  24  of the second continuable waterproof cable  100 , the annular protrusion  242  of the waterproof elastomer  24  is pressed outwardly by the first transmitting member  21  (i.e., the annular protrusion  242  of the waterproof elastomer  24  is pressed along a direction vertical to the inserting direction of the first transmitting member  21 ), so that the waterproof elastomer  24  is closely attached with the inner wall of the receiving space  2024  of the continuing end  202 . Accordingly, moist cannot enter into the receiving space  2024  from the gap between the waterproof elastomer  24  and the receiving space  2024 . In one variation, the waterproof elastomer  24  is substantially a hollow cylinder structure made of elastic materials with fluids (i.e., liquids or gases) being filled therein. Accordingly, when the first transmitting member  21  of the first continuable waterproof cable  100  is inserted into the channel  241  of the waterproof elastomer  24  of the second continuable waterproof cable  100 , the middle part of an exposed end of the waterproof elastomer  24  (i.e., one end of the waterproof elastomer  24  which is far from the second transmitting member  22 ) is recessed inwardly due to the pressure caused by the first transmitting member  21  and the ambient pressure, while the outer periphery of the waterproof elastomer  24  is not compressed because the pressure inside the waterproof elastomer  24  is increased. 
     Please refer back to  FIG. 1A  and  FIG. 2A . In this embodiment, the first transmitting member  21  is a thin rod structure, and the second transmitting member  22  is a circular groove defined a receiving room  221  therein for mating with the first transmitting member  21 . In other words, the inner diameter of receiving room  221  is greater than or substantially equal to the outer diameter of the first end of the first transmitting member  21 . Based on this, the second transmitting member  22  of the second continuable waterproof cable  100  is smoothly connected to the first transmitting member  21  of the first continuable waterproof cable  100 . The fixed end  231  of the third transmitting member  23  is a ring structure disposed around the outer periphery of the second transmitting member  22 . That is, the second transmitting member  22  and the fixed end  231  of the third transmitting member  23  are substantially disposed concentrically. The third transmitting member  23  may be, but not limited to, made of conductive materials, such as metal, conductive rubber, conductive polymer, etc. The free end  232  of the third transmitting member  23  is a flexible stripe structure, so that the free end  232  of the third transmitting member  23  is movably leant against the first transmitting member  21 . Here, the number of the third transmitting member  23  may be, but not limited to, two, and the two free ends  232  of the two third transmitting members  23  are respectively leant against the two sides of the first transmitting member  21 . 
     Specifically, when the continuable waterproof cable  100  is provided for transmitting optical signals, the first transmitting member  21  may be, but not limited to, an optical fiber, and the second transmitting member  22  may be, but not limited to, a ceramic socket adapted to couple with the optical fiber, respectively, and the free end  232  and the fixed end  231  of the third transmitting member  23  are provided for guiding the ceramic socket to couple with the optical fiber. In addition, due to the waterproof feature, the continuable waterproof cable  100  may be applied for performing stable signal transmission or electricity transmission in transportations (e.g., like vehicle, ships, etc.) or in certain places (e.g., tunnel, oil well, etc.). 
     Please refer to  FIG. 1B ,  FIG. 2B ,  FIG. 2C  and  FIG. 2D . For the sake of convenience in assembling and disassembling plural continuable waterproof cables  100 , the continuable waterproof cable  100  further comprises a first socket  25  and a second socket  26 . The first socket  25  is fitted over the outer periphery of the connecting end  201 , and the second socket  26  is fitted over the outer periphery of the continuing end  202 . Wherein, the inner diameter of the first socket  25  is substantially equal to or less than the outer diameter of the second socket  26 . Accordingly, when the connecting end  201  of the first continuable waterproof cable  100  is connected to the continuing end  202  of the second continuable waterproof cable  100 , the second socket  26  of the second continuable waterproof cable  100  is mated with the first socket  25  of the first continuable waterproof cable  100 . In some implementation aspects, in order to allow plural continuable waterproof cables  100  securely connected in sequence, the first socket  25  further comprises a first securing portion  251  defined around the inner wall thereof, the second socket  26  further comprises a second securing portion  261  defined around the outer wall thereof, and the first securing portion  251  is adapted to be mated with the second securing portion  261 . Here, the first securing portion  251  may be, but not limited to, an inner thread structure, while the second securing portion  261  may be, but not limited to, an outer thread structure. Alternatively, the first and second securing portions  251 ,  261  may be combined with each other by means of mating, packing, engaging, etc. Accordingly, an operator may firmly connect plural continuable waterproof cables  100  sequentially. In some implementations, a securing structure is defined around the outer periphery of the cable body  20  and provided for secure adjacent two continuable waterproof cables  100 . The securing structure may be provided to secure adjacent two continuable waterproof cables  100  by means of locking, engaging, etc. 
     Please refer to  FIG. 2B  and  FIG. 2C . In some implementations, at least one of the first socket  25  and the second socket  26  is rotatably fitted over the cable body  20 . Here, both the first socket  25  and the second socket  26  are rotatable relative to the cable body  20 , but embodiments are not limited thereto. Specifically, a first limiting groove  2015  is defined around the outer periphery of the connecting end  201  to mate with the first socket  25 , so that the first socket  25  is engaged in the first limiting groove  2015  and is rotatable relative to the cable body  20 . In other words, the first socket  25  and the first limiting groove  2015  are configured to make the first socket  25  rotatable along the first limiting groove  2015 . Similarly, a second limiting groove  2026  is defined around the outer periphery of the continuing end  202  to mate with the second socket  26 , so that the second socket  26  is engaged in the second limiting groove  2026  and is rotatable relative to the cable body  20 . In other words, the second socket  26  and the second limiting groove  2026  are configured to make the second socket  26  rotatable along the second limiting groove  2026 . Additionally, for the sake of convenience in assembling and disassembling plural continuable waterproof cables  100 , the first socket  25  has first holding portions  252  protruded thereon, and the second socket  26  has second holding portions  262  protruded thereon. For example, the first holding portions  252  may be, but not limited to, claws annularly protruded from the outer periphery of the first socket  25 . Likewise, the second holding portions  262  may be, but not limited to, claws annularly protruded from the outer periphery of the second socket  26 . Accordingly, an operator may rotate, by holding the first and second holding portions  252 ,  262 , the first socket  25  of the first continuable waterproof cable  100  relative to the second socket  26  of the second continuable waterproof cable  100  to allow the first socket  25  of the first continuable waterproof cable  100  to combine to or to detach from the second socket  26  of the second continuable waterproof cable  100 . Accordingly, the operator may assemble or disassemble plural continuable waterproof cables  100  without rotating the cable bodies  20 . 
     Please refer to  FIG. 2D . In some implementations, at least one of the first socket  25  and the second socket  26  is fixedly fitted over the cable body  20 . In  FIG. 2D , both the first socket  25  and the second socket  26  are fixed fitted over the cable body  20 . Here, the first socket  25  may be, but not limited to, integrally formed on the outer periphery of the connecting end  201 . Likewise, the second socket  26 , may be, but not limited to, integrally formed on the outer periphery of the continuing end  202 . Alternatively, the first socket  25  or the second socket  26  may be firmly combined to the cable body  20 . 
     Please refer to  FIG. 1B ,  FIG. 2B ,  FIG. 2C ,  FIG. 3A , and  FIG. 3B . To provide a better watertight performance, the continuable waterproof cable  100  further comprises a first elastic pad  253  and a second elastic pad  263 . Please refer to  FIG. 2B  and  FIG. 3A . The first elastic pad  253  may be, but not limited to, disposed at the inner wall of the first socket  25 , and the second elastic pad  263  may be, but not limited to, disposed at the outer wall of the second socket  26 . Accordingly, when the first continuable waterproof cable  100  is connected to the second continuable waterproof cable  100 , the first elastic pad  253  of the first continuable waterproof cable  100  is abutted against the second socket  26  of the second continuable waterproof cable  100 , and the second elastic pad  263  of the second continuable waterproof cable  100  is abutted against the first socket  25  of the first continuable waterproof cable  100 , as shown in  FIG. 3A . Here, the first elastic pad  253  and the second elastic pad  263  may be, but not limited to, rubber washers respectively and detachably fitted over the first socket  25  and the second socket  26 . Alternatively, the first elastic pad  253  and the second elastic pad  263  may be directly secured on the first socket  25  and the second socket  26 , respectively. Accordingly, the watertight performance can be further improved due to the first elastic pad  253  and the second elastic pad  263 . 
     A variation of the first elastic pad  253  and the second elastic pad  263  is described as below. Please refer to  FIG. 2C  and  FIG. 2D . The first elastic pad  253  is received in the first limiting groove  2015 . One of two sides of the first elastic pad  253  is abutted against the first socket  25 , and the other side of the first elastic pad  253  is abutted against the inner wall of the first limiting groove  2015 . Similarly, the second elastic pad  263  is received in the second limiting groove  2026 . One of two sides of the second elastic pad  263  is abutted against the second socket  26 , and the other side of the second elastic pad  263  is abutted against the inner wall of the second limiting groove  2026 . Please refer to  FIG. 3B . When the first continuable waterproof cable  100  is connected to the second continuable waterproof cable  100 , the first elastic pad  253  is abutted against the first socket  25  and the inner wall of the first limiting groove  2015 , and the second elastic pad  263  is abutted against the second socket  26  and the inner wall of the second limiting groove  2026 . Therefore, the two continuable waterproof cables  100  are press-fitted with each other to provide better watertight performance. 
     Please refer to  FIG. 1B ,  FIG. 2B  to  FIG. 2D , and  FIG. 3A  to  FIG. 3B . A flexible compressible member  27  is fitted over the fixed end  231  of the third transmitting member  23  at the continuing end  202 . The flexible compressible member  27  is tubular shaped, and the structure of the flexible compressible member  27  is substantially similar to a blast pipe or a shock absorber, and the flexible compressible member  27  can be folded and telescoped. When the second continuable waterproof cable  100  is not connected to the first continuable waterproof cable  100 , the flexible compressible member  27  encloses the outer periphery of the fixed end  231  of the third transmitting  23  to prevent moist from being in contact with the fixed end  231 . On the other hand, when the continuing end  202  of the second continuable waterproof cable  100  is connected to the connecting end  201  of the first continuable waterproof cable  100 , as shown in  FIG. 3A  and  FIG. 3B , the flexible compressible member  27  of the second continuable waterproof cable  100  is compressed inward by the free end  232  of the first continuable waterproof cable  100 , so that the fixed end  231  of the second continuable waterproof cable  100  is exposed out of the flexible compressible member  27  and the fixed end  231  of the second continuable waterproof cable  100  is then coupled to the free end  232  of the first continuable waterproof cable  100 . Conversely, when the continuing end  202  of the second continuable waterproof cable  100  is detached from the connecting end  201  of the first continuable waterproof cable  100 , the flexible compressible member  27  of the second continuable waterproof cable  100  is reinstatement, due to the flexibility. 
     In addition, please refer to  FIG. 1B ,  FIG. 2B  to  FIG. 2D , and  FIG. 3A  to  FIG. 3D , to prevent the second transmitting member  22  from being in contact with the fixed end  231  of the third transmitting member  23  and leads short circuit issue during signal transmission, an insulating member  28  is arranged between the second transmitting member  22  and the fixed end  231  of the third transmitting member  23  to separate the second transmitting member  22  from the fixed end  231 . The insulating member  28  may be, but not limited to, made of rubber materials. Optionally, the insulating member  28  may be carried out by forming hard plastics between the second transmitting member  22  and the fixed end  231  of the third transmitting member  23 . In one variation, the insulating member  28  may be integrally formed on the cable body  20 , for example, via proper injection molding techniques. 
     Please refer to  FIG. 4  and  FIG. 5 , illustrating a second embodiment of a waterproof terminal assembly  300  according to the instant disclosure.  FIG. 4  illustrates a cross-sectional view of the waterproof terminal assembly  300 , and  FIG. 5  illustrates an operational schematic view of the waterproof terminal assembly  300 . The waterproof terminal assembly  300  comprises a male terminal  40  and a female terminal  50 . 
     The male terminal  40  comprises a male terminal body  41 , a first waterproof elastic member  203 , a first transmitting member  21  and a free transmitting member  42 . The first waterproof elastic member  203  is disposed at an end portion of the male terminal body  41 . The first transmitting member  21  is disposed at the end portion of the male terminal body  41 . The free transmitting member  42  is detachably coupled to the first transmitting member  21 . Specifically, the free transmitting member  42  may be electrically connected (physically connected) or signally connected (indirectly connected) to the first transmitting member  21 . 
     The female terminal  50  comprises a female terminal body  51 , a second waterproof elastic member  204 , a second transmitting member  22  and a fixed transmitting member  52 . The second waterproof elastic member  204  is disposed at an end portion of the female terminal body  51 . The second transmitting member  22  is disposed at the end portion of the female terminal body  51 , and the second transmitting member  22  is adapted to be mated with the first transmitting member  21 , so that the second transmitting member  22  is coupled to the first transmitting member  21 . The fixed transmitting member  52  is disposed at the second transmitting member  22  and spaced from the second transmitting member  22 . When the male terminal  40  is connected to the female terminal  50 , the first transmitting member  21  is connected to the second transmitting member  22 , and the second transmitting member  22  pushes the free transmitting member  42  apart from the first transmitting member  21  so that the free transmitting member  42  is coupled to the fixed transmitting member  52 . Based on this, the first waterproof elastic member  203  is attached to the end portion of the female terminal body  51 , and the second waterproof elastic member  204  is attached to the male terminal body  41 . 
     In one implementation aspect, the waterproof terminal assembly  300  further comprises a waterproof elastomer  24  disposed at the end portion of the female terminal body  51 . The waterproof elastomer  24  is substantially a cylindrical tubular structure and defines a channel  241  therethrough. Specifically, the waterproof elastomer  24  is placed on the second transmitting member  22  to protect the second transmitting member  22 . The waterproof elastomer  24  may be, but not limited to, made of soft and elastic materials, such as rubber, foam, silica gel or latex. The inner diameter of the channel  241  is less than the outer diameter of the first transmitting member  21 . In order to achieve the waterproof effect, the difference between the inner diameter of the channel  241  and the outer diameter of the first transmitting member  21  may be depended on the elasticity of the waterproof elastomer  24 . In other words, when the coefficient of elasticity of the waterproof elastomer  24  is higher, the outer diameter of the first transmitting member  21  may be much greater than the inner diameter of the channel  241 . On the other hand, when the coefficient of elasticity of the waterproof elastomer  24  is lower, the outer diameter of the first transmitting member  21  may be substantially equal to the inner diameter of the channel  241 . An annular protrusion  242  is formed at the inner wall of the channel  241 . In this embodiment, the annular protrusion  242  is substantially protruded toward the axial line of the waterproof elastomer  24  along a direction vertical to the inner wall of the channel  241 , to block moist from moving from one end of the channel  241  toward the other end of the channel  241 , such that the waterproof elastomer  24  itself is watertight. Please refer to  FIG. 4 , when the male terminal  40  is to be coupled to the female terminal  50 , the first transmitting member  21  of the male terminal  40  is inserted into the channel  241  of the waterproof elastomer  24  of the female terminal  50 , and the periphery of the first transmitting member  21  is enclosed by the inner wall of the channel  241  of the waterproof elastomer  24 , so that the first transmitting member  21  of the male terminal  40  is coupled to the second transmitting member  22  of the female terminal  50 . 
     In one implementation aspect, the waterproof terminal assembly  300  further comprises a first socket  25  and a second socket  26 , as shown in  FIG. 4 . The first socket  25  is fitted over the outer periphery of the male terminal body  41 , the second socket  26  is fitted over the outer periphery of the female terminal body  51 , and the inner diameter of the first socket  25  is substantially equal to the outer diameter of the second socket  26 . In one variation, the first socket  25  further comprises a first securing portion  251  defined around the inner wall thereof, the second socket  26  further comprises a second securing portion  261  defined around the outer wall thereof, and the first securing portion  251  is adapted to be mated with the second securing portion  261 . Here, the first securing portion  251  may be, but not limited to, an outer thread structure, while the second securing portion  261  may be, but not limited to an outer thread structure. Alternatively, the first and second securing portions  251 ,  261  may be combined with each other by engaging means. 
     In some implementation aspects, the first socket  25  is fixedly fitted over the male terminal body  41  or the second socket  26  is fixedly fitted over the female terminal body  51 , but embodiments are not limited thereto. 
     In some implementation aspects, at least one of the male terminal body  41  and the female terminal body  51  defines a limiting groove around the outer periphery thereof, and at least one of the first socket  25  and the second socket  26  is engaged in the limiting groove so as to rotate relative to the male terminal body  41  or to rotate relative to the female terminal body  51 . Please refer to  FIG. 4  and  FIG. 5 , in which the first socket  25  is rotatable relative to the male terminal body  41  and the second socket  26  is rotatable relative to the female terminal body  51 . Here, a first limiting groove  2015  is defined around the outer periphery of the male terminal body  41 , so that the first socket  25  is engaged in the first limiting groove  2015  and is rotatable relative to the male terminal body  41 . In other words, the first socket  25  and the first limiting groove  2015  are configured to make the first socket  25  rotatable along the first limiting groove  2015 . Likewise, a second limiting groove  2026  is defined around the outer periphery of the female terminal body  51 , so that the second socket  26  is engaged in the second limiting groove  2026  and is rotatable relative to the female terminal body  51 . In other words, the second socket  26  and the second limiting groove  2026  are configured to make the second socket  26  rotatable along the second limiting groove  2026 . Additionally, for the sake of convenience in assembling and disassembling the waterproof terminal assembly  300 , the first socket  25  has first holding portions  252  protruded thereon, and the second socket  26  has second holding portions  262  protruded thereon. For example, the first holding portions  252  may be, but not limited to, claws annularly protruded from the outer periphery of the first socket  25 . Likewise, the second holding portions  262  may be, but not limited to, claws annularly protruded from the outer periphery of the second socket  26 . Accordingly, an operator may rotate, by holding the first holding portions  252  and the second holding portions  262 , the first socket  25  of the male terminal  40  relative to the second socket  26  of the female terminal  50  to allow the first socket  25  to combine to or to detach from the second socket  26 . 
     To provide a better watertight performance, the waterproof terminal assembly  300  further comprises a first elastic pad  253  and a second elastic pad  263 . Please refer to  FIG. 4  and  FIG. 5 . The first elastic pad  253  is disposed at the inner wall of the first socket  25 , and the second elastic pad  263  is disposed at the outer wall of the second socket  26 . Accordingly, when the female terminal  50  is connected to the male terminal  40 , the first elastic pad  253  of the male terminal  40  is abutted against the second socket  26  of the female terminal  50 , and the second elastic pad  263  of the female terminal  50  is abutted against the first socket  25  of the male terminal  40 . Accordingly, the watertight performance can be further improved due to the first elastic pad  253  and the second elastic pad  263 . 
     A variation of the first elastic pad  253  and the second elastic pad  263  is described as below. The first elastic pad  253  is received in the first limiting groove  2015 . Specifically, one of two sides of the first elastic pad  253  is abutted against the first socket  25 , and the other side of the first elastic pad  253  is abutted against the inner wall of the first limiting groove  2015 . Similarly, the second elastic pad  263  is received in the second limiting groove  2026 . Specifically, one of two sides of the second elastic pad  263  is abutted against the second socket  26 , and the other side of the second elastic pad  263  is abutted against the inner wall of the second limiting groove  2026 . 
     Please refer to  FIG. 5 . For example, when network signals, electricity signals are to be transmitted from a supplying station to a receiving station through plural connected continuable waterproof cables  100 , in which the supplying station is located at a first country, the receiving station is located at a second country, and the continuable waterproof cables  100  are in the ocean, the supplying station would have a supplying terminal adapted to be mated with the connecting end  201  of the continuable waterproof cable  100 , and the receiving station would have a receiving terminal adapted to be mated with the continuing end  202  of the continuable waterproof cable  100 . That is, the female terminal  50  is the supplying terminal, the outline of the female terminal  50  is similar to the continuing end  202  of the continuable waterproof cable  100 , and the female terminal  50  is adapted to be coupled to the connecting end  201  of the continuable waterproof cable  100 . Likewise, the male terminal  40  is the receiving terminal, the outline of the male terminal  40  is similar to the connecting end  201  of the continuable waterproof cable  100 , and the male terminal  40  is adapted to be coupled to the continuing end  202  of the continuable waterproof cable  100 . Accordingly, plural continuable waterproof cables  100  can be connected in sequence and eventually coupled to the supplying terminal and the receiving terminal, so that electrical signals, optical signals, acoustic signals, network signals, or electricity signals can be transmitted from the supplying terminal to the receiving terminal, in a long distance manner. 
     If the supplying station provides direct current to the receiving station, the first end of the first transmitting member  21  and the fixed end  231  of the third transmitting member  23  correspond to the negative electrode, and the second transmitting member  22  and the free end  232  of the third transmitting member  23  correspond to the positive electrode. Conversely, if the supplying station provides alternating current to the receiving station, the first end of the first transmitting member  21  and the fixed end  231  of the third transmitting member  23  correspond to the ground, and the second transmitting member  22  and the free end  232  of the third transmitting member  23  correspond to the hotwire. 
     Please refer to  FIG. 6 ,  FIG. 7 , and  FIG. 8 , illustrating a third embodiment of a continuable waterproof power module  600  according to the instant disclosure.  FIG. 6  illustrates a perspective view of the continuable waterproof power module  600  according to the instant disclosure,  FIG. 7  illustrates a cross-sectional view of the continuable waterproof power module  600  according to the instant disclosure, and  FIG. 8  illustrates an operational schematic view of the continuable waterproof power module  600 . The continuable waterproof power module  600  comprises a housing  601 , a battery core  602 , a male terminal  40 , and a female terminal  50 . 
     Please refer to  FIG. 6  and  FIG. 7 . The battery core  602  is received in the housing  601 . The male terminal  40  is disposed at a first side of the housing  601 , the female terminal  50  is disposed at the first side or a second side of the housing  601 , and the second side is not opposite to the first side. As illustrated in  FIG. 6  to  FIG. 8 , here, the male terminal  40  and the female terminal  50  are both disposed at the first side of the housing  601 . The male terminal  40  and the female terminal  50  are electrically connected to the battery core  602 . Here, the housing  601  is rectangular shaped, but embodiments are not limited thereto. 
     The male terminal  40  comprises a male terminal body  41 , a first waterproof elastic member  203 , a first socket  25 , a first securing portion  251 , a first transmitting member  21 , and a free transmitting member  42 . The first waterproof elastic member  203  is disposed at an end portion of the male terminal body  41 . The first socket  25  is fitted over the outer periphery of the male terminal body  41 , and the first securing portion  251  is defined around the inner wall of the first socket  25 . Here, the first securing portion  251  is an inner thread structure. The first transmitting member  21  is disposed at the end portion of the male terminal body  41 . The free transmitting member  42  is disposed at the end portion of the male terminal body  41  and detachably coupled to the first transmitting member  21 . The female terminal  50  comprises a female terminal body  51 , a second waterproof elastic member  204 , a second socket  26 , a second securing portion  261 , a second transmitting member  22 , and a fixed transmitting member  52 . The second waterproof elastic member  204  is disposed at an end portion of the female terminal body  51 . The second socket  26  is fitted over the outer periphery of the female terminal body  51 , and the inner diameter of the first socket  25  is substantially equal to the outer diameter of the second socket  26 . The second securing portion  261  is defined around the outer wall of the second socket  26 . Here, the second securing portion  261  is an outer thread structure. In other words, the second securing portion  261  is adapted to be mated with the first securing portion  251 . Alternatively, the first and second securing portions  251 ,  252  may be mated with each other by engaging means. The second transmitting member  22  is disposed at the end portion of the female terminal body  51 , and the second transmitting member  22  is adapted to be coupled with the first transmitting member  21 . The fixed transmitting member  52  is disposed at the end portion of the female terminal body  51  and spaced from the second transmitting member  22 . 
     Please refer to  FIG. 8 . Plural continuable waterproof power modules  600  may be connected by wires  70 . Specifically, a first terminal of the wire  70  is adapted to mate with the male terminal  40 , and a second terminal of the wire  70  is adapted to mate with the female terminal  50 , so that plural continuable waterproof power modules  600  may be coupled by the wires  70 . Accordingly, one of the male terminals  40  of the plural continuable waterproof power modules  600  is coupled to an electronic device to supply electricity to the electronic device. 
     In one implementation aspect, the continuable waterproof power module  600  further comprises a waterproof elastomer  24  disposed at the end portion of the female terminal body  51 . The waterproof elastomer  24  is substantially a cylindrical tubular structure and defines a channel  241  therethrough. Specifically, the waterproof elastomer  24  is placed on the second transmitting member  22  to protect the second transmitting member  22 . The waterproof elastomer  24  may be, but not limited to, made of soft and elastic materials, such as rubber, foam, silica gel or latex. The inner diameter of the channel  241  is less than the outer diameter of the first transmitting member  21 . In order to achieve the waterproof effect, the difference between the inner diameter of the channel  241  and the outer diameter of the first transmitting member  21  may be depended on the elasticity of the waterproof elastomer  24 . In other words, when the coefficient of elasticity of the waterproof elastomer  24  is higher, the outer diameter of the first transmitting member  21  may be much greater than the inner diameter of the channel  241 . On the other hand, when the coefficient of elasticity of the waterproof elastomer  24  is lower, the outer diameter of the first transmitting member  21  may be substantially equal to the inner diameter of the channel  241 . An annular protrusion  242  is formed at the inner wall of the channel  241 . In this embodiment, the annular protrusion  242  is substantially protruded toward the axial line of the waterproof elastomer  24  along a direction vertical to the inner wall of the channel  241 , to block moist from moving from one end of the channel  241  toward the other end of the channel  241 , such that the waterproof elastomer  24  itself is watertight. Please refer to  FIG. 4 , when the male terminal  40  is to be coupled to the female terminal  50 , the first transmitting member  21  of the male terminal  40  is inserted into the channel  241  of the waterproof elastomer  24  of the female terminal  50 , and the periphery of the first transmitting member  21  is enclosed by the inner wall of the channel  241  of the waterproof elastomer  24 , so that the first transmitting member  21  of the male terminal  40  is coupled to the second transmitting member  22  of the female terminal  50 . 
     In some implementation aspects, the first socket  25  is fixedly fitted over the male terminal body  41  or the second socket  26  is fixedly fitted over the female terminal body  51 , but embodiments are not limited thereto. 
     In some implementation aspects, at least one of the male terminal body  41  and the female terminal body  51  defines a limiting groove around the outer periphery thereof, and at least one of the first socket  25  and the second socket  26  is engaged in the limiting groove so as to rotate relative to the male terminal body  41  or to rotate relative to the female terminal body  51 . Please refer to  FIG. 7  and  FIG. 8 , in which the first socket  25  is rotatable relative to the male terminal body  41  and the second socket  26  is rotatable relative to the female terminal body  51 . Here, a first limiting groove  2015  is defined around the outer periphery of the male terminal body  41 , so that the first socket  25  is engaged in the first limiting groove  2015  and is rotatable relative to the male terminal body  41 . Likewise, a second limiting groove  2026  is defined around the outer periphery of the female terminal body  51 , so that the second socket  26  is engaged in the second limiting groove  2026  and is rotatable relative to the female terminal body  51 . 
     To provide a better watertight performance, the continuable waterproof power module  600  further comprises a first elastic pad  253  and a second elastic pad  263 . Please refer to  FIG. 7  and  FIG. 8 . The first elastic pad  253  is disposed at the inner wall of the first socket  25 , and the second elastic pad  263  is disposed at the outer wall of the second socket  26 . Accordingly, when the female terminal  50  or the male terminal  40  of the continuable waterproof power module  600  is connected to the wire  70 , the first elastic pad  253  of the male terminal  40  is abutted against the second socket  26  of the wire  70 , and the second elastic pad  263  of the female terminal  50  is abutted against the first socket  25  of the wire  70 . Accordingly, the watertight performance between the continuable waterproof power module  600  and the wire  70  can be further improved due to the first elastic pad  253  and the second elastic pad  263 . 
     A variation of the first elastic pad  253  and the second elastic pad  263  is described as below. The first elastic pad  253  is received in the first limiting groove  2015 . Specifically, one of two sides of the first elastic pad  253  is abutted against the first socket  25 , and the other side of the first elastic pad  253  is abutted against the inner wall of the first limiting groove  2015 . Similarly, the second elastic pad  263  is received in the second limiting groove  2026 . Specifically, one of two sides of the second elastic pad  263  is abutted against the second socket  26 , and the other side of the second elastic pad  263  is abutted against the inner wall of the second limiting groove  2026 . 
     Based on the above, the workload, the cost, and the time for assembling and repairing the submarine cables can be reduced due to the waterproof feature provided by the continuable waterproof cable according to the instant disclosure. In addition, the waterproof terminal assembly can be adopted to couple with the continuable waterproof cable or the continuable waterproof power module. Accordingly, transmission of electrical signals, optical signals, acoustic signals, electricity signals, or network signals can be achieved, by connecting the continuable waterproof cable in sequence, according to the instant disclosure. 
     While the instant disclosure has been described by way of example and in terms of the preferred embodiments, it is to be understood that the invention needs not be limited to the disclosed embodiments. For anyone skilled in the art, various modifications and improvements within the spirit of the instant disclosure are covered under the scope of the instant disclosure. The covered scope of the instant disclosure is based on the appended claims.