Patent Publication Number: US-2023143898-A1

Title: Lamp and lamp string

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a bypass continuation of international application number PCT/CN2021/133208, filed Nov. 25, 2021, which claims priority to Chinese patent application No. 2021227654616 filed Nov. 11, 2021. The contents of these applications are incorporated herein by reference in their entirety. 
    
    
     TECHNICAL FIELD 
     The disclosure relates to the technical field of lighting, and more particularly, to a lamp and a lamp string. 
     BACKGROUND 
     As common devices for daily lighting and background rendering, lamps are widely used in various scenes, and waterproofness is an important factor affecting the service life of a lamp. When the lamp is used in the open air, in case of encountering rain and high humidity, it is inevitably for the lamp to suffer from rain or water vapor infiltration, which will seriously affect the service life of the lamp, and even easily cause the lamp to burst. 
     SUMMARY 
     The disclosure aims at solving at least one of the technical problems in the existing technology. To this end, the disclosure provides a lamp which has a better water-proofing performance. 
     The disclosure further provides a lamp string having the above-mentioned lamp. A lamp according to an embodiment of a first aspect of the disclosure includes a lamp base and a lampshade. The lampshade is connected with the lamp base, an inner wall of the lamp base is provided with a first flange and a second flange, an outer wall of the lampshade is formed with a first abutting surface and a second abutting surface, the first flange is configured for abutting against the first abutting surface, and the second flange is configured for abutting against the second abutting surface; wherein, the first abutting surface is a conical surface, a diameter of the lampshade at a position corresponding to the first abutting surface gradually decreases along a direction towards the lamp base, and an included angle between the first abutting surface and the second abutting surface is an obtuse angle. 
     The lamp according to the embodiment of the disclosure at least has the following beneficial effects: the first abutting surface is the conical surface, and the diameter of the lampshade at a position corresponding to the first abutting surface gradually decreases along the direction towards the lamp base. It may be understood that the first abutting surface shrinks along the direction towards the lamp base. When the lampshade is gradually screwed into the lamp base, the contact between the first abutting surface of the lampshade and the first flange is gradually tight. The included angle between the first abutting surface and the second abutting surface is an obtuse angle. When the lampshade is screwed into the lamp base, the deeper the lampshade is screwed into, the closer the first flange and the second flange are connected with the outer wall of the lampshade. 
     According to some embodiments of the disclosure, the first abutting surface is formed at the position where the outer wall of the lampshade abuts against the first flange, the second abutting surface is formed at the position where the outer wall of the lampshade abuts against the second flange, and the included angle between the first abutting surface and the second abutting surface is an obtuse angle. 
     According to some embodiments of the disclosure, the second abutting surface is perpendicular to an axis of the lampshade. 
     According to some embodiments of the disclosure, a recess is formed between the second flange and the inner wall of the lamp base. 
     According to some embodiments of the disclosure, the first flange and the second flange are made of plastic materials. 
     According to some embodiments of the disclosure, the first flange and the second flange are integrally formed with the lamp base. 
     According to some embodiments of the disclosure, the lamp further includes a light emitting module for emitting light, wherein the light emitting module is detachably connected with a conducting terminal of the lamp base. 
     According to some embodiments of the disclosure, the light emitting module includes a shell, a lamp bead and a PCB board. The lamp bead is arranged in the shell and configured for emitting light. The PCB board is arranged in the shell and is electrically connected with the lamp bead. 
     According to some embodiments of the disclosure, an outer side of the shell is formed with a third flange, and one end of the lampshade towards the lamp base is capable of abutting against the third flange. 
     According to some embodiments of the disclosure, an outer wall of the shell is formed with scattering grains, and the scattering grains are configured for scattering the light emitted by the lamp bead. 
     A lamp string according to an embodiment of a second aspect of the disclosure includes the lamp according to the embodiment of the first aspect. 
     The lamp string according to the embodiment of the disclosure at least has the following beneficial effects: including all the beneficial effects of the lamp according to the embodiment of the first aspect, which will not be repeated here. 
     Part of the additional aspects and advantages of the disclosure will be given in part in the following description, and will become apparent in part from the following description, or will be learned through the practice of the disclosure. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The disclosure will be further explained with reference to the accompanying drawings and embodiments hereinafter, wherein: 
         FIG.  1    is a sectional view of a lamp according to an embodiment of a first aspect of the disclosure; 
         FIG.  2    is an enlarged view of a portion A in  FIG.  1   ; 
         FIG.  3    is an exploded view of the lamp according to the embodiment of the first aspect of the disclosure; 
         FIG.  4    is a sectional view of a lampshade according to the embodiment of the first aspect of the disclosure; 
         FIG.  5    is a sectional view of a light emitting module according to the embodiment of the first aspect of the disclosure; 
         FIG.  6    is a sectional view of a lamp base according to the embodiment of the first aspect of the disclosure; and 
         FIG.  7    is a schematic structural diagram of a lamp string according to an embodiment of a second aspect of the disclosure. 
     
    
    
     Reference numerals:  100  refers to lamp base,  110  refers to first flange,  120  refers to second flange,  130  refers to conducting terminal, and  140  refers to recess;  200  refers to lampshade,  210  refers to first abutting surface, and  220  refers to second abutting surface; and  300  refers to light emitting module,  310  refers to shell,  311  refers to third flange, and  320  refers to lamp bead 
     DETAILED DESCRIPTION 
     Embodiments of the disclosure will be described in detail below. Examples of the embodiments are illustrated in the accompanying drawings, where the same or like reference numerals throughout the figures indicate the same or like elements having the same or like functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the disclosure instead of being construed as limiting the disclosure. 
     In the description of the disclosure, it should be understood that, descriptions relating to orientation, for example, orientation or positional relationships indicated by “up”, “down”, “front”, “back”, “left”, “right”, etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are to facilitate the description of the disclosure and simplify the description only, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the disclosure. 
     In the description of the disclosure, the meaning of “several” is one or more, the meaning of “a plurality of” is two or more, “greater than”, “less than”, “more than”, etc. are to be understood to exclude the given figure, and “above”, “below”, “within”, etc. are understood to include the given figure. If “first” and “second”, etc. are referred to, it is only for the purpose of distinguishing technical features, and shall not be understood as indicating or implying relative importance or implying the number of the indicated technical features or implying the sequence of the indicated technical features. 
     In the description of the disclosure, unless otherwise explicitly defined, the words such as “set”, “install”, and “connect” should be understood in a broad sense, and those skilled in the art can determine the specific meanings of the above words in the disclosure in a rational way in combination with the specific contents of the technical solutions. 
     In the description of the disclosure, the descriptions with reference to the terms “an embodiment”, “some embodiments”, “illustrative embodiment”, “example”, “specific example” or “some examples”, etc., refer to that specific features, structures, materials, or characteristics described with reference to the embodiments or examples are included in at least one embodiment or example of the disclosure. In the specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. 
     As shown in  FIG.  1    to  FIG.  6   , a lamp according to an embodiment of a first aspect of the disclosure includes a lamp base  100  and a lampshade  200 . 
     As shown in  FIG.  1   , the lampshade  200  is connected with the lamp base  100 . For example, the lampshade  200  is in thread connection with the lamp base  100 . It is noted that the lampshade  200  may be in snap-fit connection with the lamp base  100 , so that one end of the lampshade  200  can be fixed in the lamp base  100 . 
     As shown in  FIG.  1   ,  FIG.  2    and  FIG.  6   , an inner wall of the lamp base  100  is provided with a first flange  110  and a second flange  120 , an outer wall of the lampshade  200  is formed with a first abutting surface  210  and a second abutting surface  220 , the first flange  110  abuts against the first abutting surface  210 , and the second flange  120  abuts against the second abutting surface  220 . 
     It may be understood that the first flange  110  and the second flange  120  are arranged along a circumferential direction of the lamp base  100 . When one end of the lampshade  200  is screwed into the lamp base  100 , the first flange  110  and the second flange  120  respectively abut against the outer wall of the lampshade  200 , so that two sealing positions are formed between the lampshade  200  and the lamp base  100 , thus achieving a double water-proofing effect, and improving water-proofing property of the lamp. 
     Specifically, the base is in interference fit with the lampshade  200  through the first flange  110  and the second flange  120 , so that the first flange  110  and the second flange  120  can be tightly connected to the outer wall of the lampshade  200 . 
     As shown in  FIG.  4   , the first abutting surface  210  is a conical surface, a diameter of the lampshade  200  at a position corresponding to the first abutting surface  210  gradually decreases along a direction towards the lamp base  100 . It may be understood that the first abutting surface  210  shrinks along the direction towards the lamp base  100 . When the lampshade  200  is gradually screwed into the lamp base  100 , the contact between the first abutting surface  210  of the lampshade  200  and the first flange  110  is gradually tight. 
     An included angle between the first abutting surface  210  and the second abutting surface  220  is an obtuse angle. Specifically, the first abutting surface  210  and the second abutting surface  220  are sequentially arranged at one end of the lampshade  200  connected with the lamp base  100 . When the lampshade  200  is screwed into the lamp base  100 , the first abutting surface  210  will contact with the first flange  110  first. As the lampshade  200  goes deeper into the lamp base  100 , the second abutting surface  220  will contact with the second flange  120 . In addition, the first flange  110  and the second flange  120  may compress the lampshade  200  in different directions to improve the water-proofing effect of the lamp. 
     For instance, when the lampshade  200  is initially screwed into the lamp base  100 , the contact between the lampshade  200  and the first flange  110  is gradually tight. The second abutting surface  220  is perpendicular to an axis of the lampshade  200 . When the lampshade  200  is screwed deeper into the lamp base  100 , the second flange  120  abuts on the second abutting surface  220  and compress the lampshade  200  in a direction parallel to the axis of the lampshade  200 . The deeper the lampshade  200  is screwed into, the tighter the connections between the first flange  110  and the outer wall of the lampshade  200  and between the second flange  120  and the outer wall of the lampshade  200  are. 
     Moreover, the first flange  110  and the second flange  120  are made of plastic materials. When the first flange  110  and the second flange  120  are pressed against the outer wall of the lampshade  200 , the first flange  110  and the second flange  120  can have a certain deformation effect, which improves the connection tightness between the first flange  110  and the second flange  120  and the lampshade  200 . 
     It should be noted that the first flange  110  and the second flange  120  are integrally formed with the lamp base  100 . 
     As shown in  FIG.  1   ,  FIG.  2    and  FIG.  4   , it may be understood that the second abutting surface  220  is perpendicular to the axis of the lampshade  200 . It should be noted that the direction in which the lampshade  200  is screwed into the base  100  is parallel to the axis of the lampshade  200 . When the lampshade  200  is screwed into the base  100  deeply, the second flange  120  can compress the lampshade  200  in a direction opposite to the screwing direction, that is, the deeper the lampshade  200  is screwed into, the tighter the second flange  120  is connected with the lampshade  200 . 
     As shown in  FIG.  2    and  FIG.  6   , it may be understood that a recess  140  is formed between the second flange  120  and the inner wall of the lamp base  100 . 
     It may be understood that the groove  140  forms a gap between the second flange  120  and the inner wall of the lamp base  100 , so that when the second flange  120  is pressed against the lampshade  200 , the second flange  120  can have a certain deformation space, so that the lampshade  200  can still be screwed in the direction of the lamp base  100  after the lampshade  200  is in contact with the second flange  120 . 
     As shown in  FIG.  2   , it may be understood that the first flange  110  is integrally formed with the lamp base  100 , and the second flange  120  is integrally formed with the lamp base  100 , thus improving production efficiency of the lamp base  100  and reducing production costs. 
     As shown in  FIG.  1    to  FIG.  3   , it may be understood that the lamp further includes a light emitting module  300  for emitting light, wherein the light emitting module  300  is detachably connected with a conducting terminal  130  of the lamp base  100 . Compared with the lampshade  200  and the lamp base  100 , the light emitting module  300  is easily damaged, and the light emitting module  300  is independently arranged, which can facilitate installation and replacement of the light emitting module  300 . Specifically, the light emitting module  300  is plugged into the conducting terminal  130 . 
     As shown in  FIG.  1   ,  FIG.  2   ,  FIG.  3    and  FIG.  5   , it may be understood that the light emitting module  300  includes a shell  310 , a lamp bead  320  and a PCB board. The lamp bead  320  is arranged in the shell  310  and configured for emitting light. The PCB board is arranged in the shell and is electrically connected with the lamp bead. It should be noted that the lamp bead  320  may have various light emitting states, such as always lighting, blinking or closing, and various light emitting colors, and the light emitting states of the lamp bead  320  may be controlled by the PCB board. 
     Moreover, as shown in  FIG.  2   , an outer side of the shell  310  is formed with a third flange  311 , one end of the lampshade  200  towards the lamp base  100  is capable of abutting against the third flange  311 , and the third flange  311  is configured for limiting. 
     As shown in  FIG.  3   , it may be understood that an outer wall of the shell  310  is formed with scattering grains, and the scattering grains are configured for scattering the light emitted by the lamp bead  320 , so as to increase a light irradiation range of the lamp bead  320 . 
     As shown in  FIG.  7   , a lamp string according to an embodiment of a second aspect of the disclosure includes a plurality of lamps electrically connected to one another, at least one of the lamps of the plurality of lamps comprising the lamp according to the embodiment of the first aspect. 
     It may be understood that the lamp string may be used as an outdoor atmosphere lamp. The outdoor air has a high water content, and the outdoor is prone to rainy days. The lamp of the first embodiment has a good water-proofing effect, which can prolong the service life of the lamp string. 
     The embodiments of the disclosure are described in detail with reference to the drawings above, but the disclosure is not limited to the above embodiments, and various changes may also be made within the knowledge scope of those of ordinary skills in the art without departing from the purpose of the disclosure. Moreover, in case of no conflict, the embodiments in the disclosure and the features in the embodiments may be arbitrarily combined with each other