Abstract:
A battery device includes a main body and a rear cover removably connected to the main body. The main body has a first battery receiving compartment. The rear cover has a second battery receiving compartment. The first battery receiving compartment is configured to receive at least two batteries while the second battery receiving compartment is configured to receive at least one battery. 
     For the battery device, since the back cover is provided with the second battery receiving compartment cooperating with the first battery receiving compartment in the body, the apparatus applying the battery device has at least two supportable power levels. In this way, the battery device can be switched between a low power and a high power, eliminating the need of another battery device.

Description:
TECHNICAL FIELD 
       [0001]    The present disclosure relates to the technical field of smoking simulation, and more particularly, to a battery device and an electronic cigarette having the same. 
       BACKGROUND 
       [0002]    The electronic cigarette is generally used for quitting smoking or replacing a traditional cigarette. The electronic cigarette generally has an appearance and taste similar to the traditional cigarette, and even has more flavor options than the traditional cigarette. Just like the traditional cigarette, the electronic cigarette would release vapor in use, and the user would have a feel of snorting the traditional cigarette identical to the physiological and psychological needs. The electronic cigarette has no harmful ingredient such as tar and particulate matters in the traditional cigarette, so the electronic cigarette has gradually replaced the traditional cigarette on the market. In the exiting electronic cigarette, the heating unit in the atomizer is generally powered by a battery, and the heating unit is energized by the battery to heat the nicotine liquid to create a vapor, enabling the user to have a smoking experience. 
         [0003]    As shown in  FIG. 1 , the battery devices for the exiting electronic cigarette are similar, including a main body  100  provided with a battery compartment for receiving two batteries, and a cover plate  200 . The battery compartment is set according to a supportable maximum power of the battery device. If the electronic cigarette needs two batteries to supply power, a mould for the two batteries should be made, and a corresponding battery device should be manufactured based on the mould. The traditional battery device only supports one maximum power. In this case, if the user needs to use a higher power which is unavailable for the current battery device, the user must buy another battery device supporting a higher power than the current battery device. This will result in waste of resources, and aggravate the user&#39;s financial burden. 
       SUMMARY 
       [0004]    In view of the above mentioned facts, in order to meet the requirements of the market, an objective of the present disclosure is to provide a battery device, which can change its supportable maximum power, for example, the battery device can use both two batteries and three batteries. The battery device can meet the requirement on the power of the battery of the electronic cigarette. 
         [0005]    According to an aspect of the present disclosure, a battery device is provided, including a main body, and a rear cover removably connected to the main body, wherein the main body is provided with a first battery receiving compartment, the rear cover is provided with a second battery receiving compartment, the first battery receiving compartment is adapted to receive at least two batteries, and the second battery receiving compartment is adapted to receive at least one battery. 
         [0006]    Further, both upper and lower sides of the first battery receiving compartment are provided with a flexible conduction post respectively, an upper side of the second battery receiving compartment is provided with a positive connection post adapted to be electrically connected to one of the two flexible conduction posts, and a lower side of the second battery receiving compartment is provided with a negative connection post adapted to be electrically connected to the other flexible conduction post. 
         [0007]    Further, the rear cover includes a cover body and an upper plastic fastener arranged inside the cover body, the cover body is provided with a stud inside the second battery receiving compartment and close to an upper side of the cover body, the upper plastic fastener includes an upper horizontal part and an upper vertical part extending from one side of the upper horizontal part and bending vertically upwards, the upper vertical part is provided with an opening, and the positive connection post is fastened to the stud through the opening so that the upper plastic fastener is fastened to the cover body. 
         [0008]    Further, the rear cover includes an upper plastic compression element, there is a gap between the stud and a top wall of the second battery receiving compartment, and the upper plastic compression element is fastened in the gap between the stud and the top wall of the second battery receiving compartment and to support against the upper vertical part. 
         [0009]    Further, the upper horizontal part is provided with a through hole, the rear cover includes a positive seat having an electrode post, and the electrode post of the positive seat passes through the through hole of the upper horizontal part, and is connected to the positive connection post passing through the opening of the upper vertical part. 
         [0010]    Further, an upper side of the first battery receiving compartment is provided with a first fastening hole, a lower side of the first battery receiving compartment is provided with a second fastening hole, an upper side of the second battery receiving compartment is provided with a first fastener adapted to be engaged with the first fastening hole, and a lower side of the second battery receiving compartment is provided with a second fastener adapted to be engaged with the second fastening hole. 
         [0011]    Further, the top of the main body is provided with a connector adapted to be connected to an atomizer. 
         [0012]    Further, the bottom of the main body is provided with a lock catch. 
         [0013]    Further, the first battery receiving compartment is designed to receive two batteries, and the second battery receiving compartment is designed to receive one battery. 
         [0014]    According to another aspect of the present disclosure, an electronic cigarette is provided, including an atomizer, and the above battery device electrically connected to the atomizer. 
         [0015]    For the battery device according to the present disclosure, the back cover is provided with the second battery receiving compartment, and the second battery receiving compartment can cooperate with the first battery receiving compartment in the main body, so the apparatus applying the battery device can be used in at least two supportable maximum powers. In addition, the main body of the battery device can cooperate with the exiting cover plate. For example, when one supportable maximum power of the battery device is required, the main body may be covered by the exiting cover plate, or when a higher supportable maximum power is required, the main body may be covered by the back cover with the second battery receiving compartment. In this way, the battery device can be switched between a low power and a high power, enabling the user to avoid re-buying another battery device, to reduce the user&#39;s financial burden. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0016]    The above and other aspects, features, and advantages of the present disclosure will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: 
           [0017]      FIG. 1  is a structural schematic diagram showing an existing battery device. 
           [0018]      FIG. 2  is a perspective view diagram showing a main body of a battery device according to one embodiment of the present disclosure. 
           [0019]      FIG. 3  is another perspective view diagram showing the main body in  FIG. 2 . 
           [0020]      FIG. 4  is an exploded diagram of a rear cover of a battery device according to one embodiment of the present disclosure. 
           [0021]      FIG. 5  is a perspective view diagram showing the assembled rear cover in  FIG. 4 . 
           [0022]      FIG. 6  is an exploded diagram of a battery device according to one embodiment of the present disclosure. 
           [0023]      FIG. 7  is a perspective view diagram showing the assembled battery device in  FIG. 6 . 
           [0024]    FIG. 8  is a top view of the assembled battery device in FIG. 7 . 
           [0025]      FIG. 9  is a sectional view of  FIG. 8  along Line A-A. 
       
    
    
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS 
       [0026]    The advantages and features of the present disclosure will become apparent by referring to embodiments of the present disclosure as described below in detail in conjunction with the accompanying drawings. However, the present disclosure is not limited to the embodiments set forth below, but may be implemented in various different forms, as one of ordinary skill in the art would know. The following embodiments are provided only to inform those skilled in the art of the scope of the present disclosure, and the present disclosure is limited only by the scope of the appended claims. 
         [0027]    With reference to  FIG. 6 , the battery device includes a main body  2 , and a rear cover  1  removably connected to the main body  2 . The main body  2  is provided with a first battery receiving compartment  20  adapted to receive two or more batteries. The number of the batteries received in the first battery receiving compartment  20  can be determined according to design needs. The rear cover  1  is provided with a second battery receiving compartment  10  (see  FIG. 5 ) adapted to receive one or more batteries, so that the battery device may receive three or more batteries when the rear cover  1  closes on the main body  2 . 
         [0028]    In one embodiment, the first battery receiving compartment  20  may be designed to receive two batteries. It should be understood that, the first battery receiving compartment  20  may be designed to receive more than two batteries in other embodiments. The main body  100  in  FIG. 1  may be used for the main body  2  in this embodiment. As shown in  FIGS. 2 and 3 , both upper and lower sides of the first battery receiving compartment  20  are provided with one flexible conduction post  21  respectively. Both sides of the flexible conduction post  21  on the upper side of the first battery receiving compartment  20  is provided with a first fastening hole  22  respectively, and both sides of the flexible conduction post  21  on the lower side of the first battery receiving compartment  20  is provided with a second fastening hole  23  respectively. In addition, the top of the main body  2  is provided with a threaded connector  24  adapted to be connected to an atomizer (not shown) or other electric devices. The bottom of the main body  2  is provided with a lock catch  25 . 
         [0029]    With reference to  FIG. 4 , in one embodiment, the rear cover  1  includes a cover body  11 , and an upper plastic compression element  12 , an upper plastic fastener  13 , a positive seat  14 , a positive connection post  15 , a lower plastic fastener, a negative seat  17 , a lower plastic compression element  18  and a negative connection post  19  arranged inside the cover body  11 . The second battery receiving compartment  10  is formed in the cover body  11 , and a top wall, a bottom wall and a peripheral wall enclosing the second battery receiving compartment  10  are formed in the cover body  11  accordingly. The second battery receiving compartment  10  is not closed, and one side of the second battery receiving compartment  10  is open for putting the battery in the second battery receiving compartment  10 . The cover body  11  is provided with a hollow stub  110  inside the second battery receiving compartment  10  and close to an upper side of the cover body  11 , and there is a gap between the stub  110  and the top wall of the cover body  11 . The upper plastic compression element  12  is fastened inside the second battery receiving compartment  10  of the cover body  11  and on the top of the second battery receiving compartment  10 , and adapted to abut against the upper plastic fastener  13  to make the upper plastic fastener  13  have a reliable installation. Specifically, the upper plastic compression element  12  is in the shape of “II”, sleeved on the stub  110 , and fastened in the gap between the stud  10  and the top wall of the second battery receiving compartment  10 . 
         [0030]    The upper plastic fastener  13  includes an upper horizontal part  131  and an upper vertical part  132  extending from one side of the upper horizontal part  131  and bending vertically upwards. The upper vertical part  132  extending opposite to the surface of one side of the upper horizontal part  131  to form two first fasteners  130  (see  FIG. 5 ). The upper horizontal part  131  is provided with a through hole (not shown) in the middle of the upper horizontal part  131 , and the electrode post of the positive post  14  is adapted to pass through the through hole. The upper vertical part is provided with an opening (not shown) between the two first fasteners  130 . The positive connection post  15  is fastened to the electrode post of the positive post  14  through the opening between the two first fasteners  130 . Since both the positive connection post  15  and the positive post  14  are made of a conducting material, the positive connection post  15  and the positive post  14  are electrically connected to each other. The side portion of each first fastener  130  of the upper vertical part  132  is provided with a bolt mounting pole  133 . The number of the bolt mounting pole  133  match the number of the stub  110 . After the upper plastic fastener  13 , the positive seat  14  and the positive connection post  5  have been assembled, the upper plastic compression element  12  and the upper plastic fastener  13  may be fastened to the cover body  11  by passing the bolt through the bolt mounting pole  133  and screwing the bolt into the hollow stub  110 . The upper plastic compression element  12  may support against the upper vertical part  132  of the upper plastic fastener  13 , to strengthen the stability of the upper plastic fastener  13 . One end of the electrode post  141  of the positive seat  14  may pass through the through hole of the upper horizontal part  131 . The electrode post  141  of the positive seat  14  is provided with a driving hole  140 . One end of the positive connection post  15  may pass through the driving hole  140 , to achieve the electrical connection between the positive connection post  15  and the positive seat  14 . 
         [0031]    Similarly, with reference to  FIGS. 4 and 5 , in one embodiment, the cover body  11  is provided with a hollow stub  110  inside the second battery receiving compartment  10  and close to a lower side of the cover body  11 , and there is a gap between the stub  110  and the top wall of the cover body  11 . The lower plastic compression element  18  is fastened in the gap between the stub  110  and the bottom wall of the cover body  11 , and adapted to support against the lower plastic fastener  16 , to make the lower plastic fastener  16  have a reliable installation. The lower plastic fastener  16  includes a lower horizontal part  161 , and a lower vertical part  162  extending from one side of the lower horizontal part  161  and bending vertically upwards. The lower vertical part  162  extending opposite to the surface of one side of the lower horizontal part  631  to form two second fasteners  160 . The lower vertical part  162  is provided with an opening above the middle of the two second fasteners  160 . The negative connection post  19  is adapted to pass through the opening above the middle of the two second fasteners  160 , and fastened in to stub  10 , so that the lower plastic compression element  18  and the lower plastic fastener  16  are fastened inside and at the bottom of the second battery receiving compartment  10 . The lower horizontal part  161  is provided with a through hole  164 , and the electrode post  171  of the negative seat  17  is adapted to pass through the through hole. The negative seat  17  is provided with a driving hole  170 , and the negative connection post  19  is adapted to pass through the driving hole  170 , to achieve the electrical connection between the negative connection post  19  and the negative seat  17 . It should be understood that, the upper plastic compression element  12 , the upper plastic fastener  13 , the positive seat  14  and the positive connection post  15  can be regarded as positive connection components, and the lower plastic compression element  18 , the upper plastic fastener  16 , the negative seat  17  and the negative connection post  19  can be regarded as negative connection components. The assembly method of the negative connection components is the same as that of the positive connection components. 
         [0032]    With reference to  FIG. 7 , the outer circumferential surface of the main body  2  is provided with a ventilation hole  26  for cooling the battery. The outer circumferential surface of the main body  2  is further provided with a LED screen  28 , a power control switch  27  and a control button  29 . The power control switch  27  is adapted to turn on and turn off the battery device. The LED screen  28  is adapted to display, for example, the battery level, the current power, the current time, and the usage counter, and to prompt the user to replace the battery. The control button  29  is adapted to control the temperature, power and mode of the battery device. 
         [0033]    With reference to  FIGS. 8 and 9 , the battery device in this embodiment can be applied to the atomizer or other electric devices powered by three batteries. When the main body  2  is engaged with the back cover  1 , the two first fasteners  130  are inserted into the two first fastening holes  22  respectively, and the two second fasteners  160  match the two fastening holes  22  respectively, so that the positive connection post  15  and the negative connection post  19  are electrically connected to the two flexible conduction posts  21  respectively. At this moment, the battery device includes a first battery receiving compartment  20  capable of receiving two batteries formed on the main body  2 , and a second battery receiving compartment  10  capable of receiving one battery formed on the back cover  1 . When it needs to switch power, for example, to be applied to an atomizer powered by two batteries, the back cover  1  will be removed from the main body  2 . The back cover  1  may be disengaged from the main body  2  by the user pressing the lock catch  25  on the bottom of the main body  2 , and be convenient to remove. Then a traditional cover plate  200  may be cover on the main body  2 . At this moment, the battery device only includes the first battery receiving compartment  20  receiving two batteries. In this way, the battery device is switched from a first maximum power to a second maximum power, enabling the user to avoid purchasing another battery device, to reduce the user&#39;s financial burden. 
         [0034]    In addition, an electronic cigarette including the above battery device is provided. The electronic cigarette further includes an atomizer electrically connected to battery device. When the electronic cigarette is in use, the battery device may supply power to the atomizer, and the user may inhale with a mouthpiece. 
         [0035]    For the battery device according to the present disclosure, the back cover  1  is provided with the second battery receiving compartment  10 , and the second battery receiving compartment  10  can be combined the first battery receiving compartment  20  in the main body, so the battery device can meet the use of an electronic cigarette with a high power. In addition, the main body  2  of the battery device can receive with the traditional cover plate  200 . For example, when the atomizer needs a battery device of a second maximum power, the main body  2  may receive and be covered by the traditional cover plate  200 , or the atomizer needs a battery device of a first maximum power, the main body  2  may receive and be covered by the back cover  1  having the second battery receiving compartment  10 . In this way, the battery device can be switched between the first power and the second power, enabling the user to avoid purchasing another battery device, to reduce the user&#39;s financial burden. 
         [0036]    The above are preferred embodiments of the present disclosure described in detail, and should not be deemed as limitations to the scope of the present disclosure. It should be noted that variations and improvements will become apparent to those skilled in the art to which the present disclosure pertains without departing from its spirit and scope. Therefore, the scope of the present disclosure is defined by the appended claims.