Battery module

Abstract

The utility model discloses a battery module, including the shell of flat structure and be located in the charging battery of shell, and the shell is formed by the lower shell and the upper shell spliced, and the lower shell includes the first shell bottom and the first side wall, and the inner side of first side wall evenly is provided with a plurality of limit card convexes to the protruding of lower shell inner side, and the both sides of each limit card convex are equipped with first limit board and second limit board to form the slot respectively, and the upper shell includes the second shell bottom and the second side wall of surrounding in the edge of second shell bottom, and the inner side of second side wall is equipped with a plurality of card sheets to a plurality of limit card convexes and the slot, and the card sheet is flaky, and the limit hole is seted up to the corresponding limit card convex on the card sheet, and the card sheet is inserted in the slot, and the limit card convex is embedded in the limit hole, the utility model sets up the limit card convex and sets up the slot on the lower shell, and sets up the card sheet on the upper shell, and the both side walls of card sheet are limited through the slot, avoids the shell of battery module to scatter because of falling repeatedly.

Description

Technical Field

[0001] This utility model belongs to the field of power supply devices, and in particular relates to a battery module. Background Technology

[0002] When the weather is cold and there is no air conditioning or heating system indoors, people's feet and hands will become cold. Cold hands and feet make it difficult for people to study or work in peace. Existing technologies include rechargeable battery modules for heating socks, scarves, gloves, etc. However, existing rechargeable battery modules may have their casings break apart due to repeated drops during use, which greatly affects people's actual use. Summary of the Invention

[0003] The purpose of this invention is to provide a battery module to solve the problem that the casing of the charging power supply may fall apart due to repeated drops in the prior art.

[0004] To achieve the above objectives, this utility model provides a battery module, including a flat housing and a rechargeable battery disposed within the housing. The housing is formed by assembling a lower housing and an upper housing covering the lower housing. The lower housing includes a first bottom and a first sidewall surrounding the edge of the first bottom. The inner side of the first sidewall is evenly arranged with a plurality of limiting protrusions protruding towards the inner side of the lower housing. Each limiting protrusion has a first limiting plate and a second limiting plate on both sides to form a slot. The upper housing includes a second bottom and a second sidewall surrounding the edge of the second bottom. The inner side of the second sidewall is provided with a plurality of locking plates corresponding to the plurality of limiting protrusions and the slot. The locking plates are sheet-shaped and have limiting holes corresponding to the limiting protrusions. The locking plates are inserted into the slots and the limiting protrusions are embedded in the limiting holes.

[0005] Preferably, the first shell bottom and the first sidewall form an accommodating space, in which a first circuit board and the rechargeable battery are installed, and the first circuit board and the rechargeable battery are arranged sequentially along the length direction of the first shell bottom.

[0006] Preferably, the inner side of the first housing bottom is further provided with at least two mounting posts and at least two positioning posts for mounting the first circuit board, with at least two of the positioning posts being located close to the rechargeable battery and at least two of the mounting posts being located away from the rechargeable battery.

[0007] Preferably, the mounting post includes a first mounting post and a second mounting post, which are arranged side-by-side along the width direction of the first shell bottom. The positioning post includes a first positioning post and a second positioning post, which are also arranged side-by-side along the width direction of the first shell bottom. The first limiting plate and the second limiting plate are both L-shaped. The first limiting plate includes a first plate connected to the first sidewall and a second plate connected to the first plate. The second limiting plate includes a third plate connected to the first sidewall and a fourth plate connected to the third plate. The first mounting post and the first positioning post are respectively provided in one of the slots. The first slot is the slot corresponding to the first positioning post and the second mounting post. The second slot is the slot corresponding to the second positioning post and the second mounting post. The second plate of the first limiting plate in the first slot is connected to the first mounting post through a first connecting plate. The fourth plate of the second limiting plate in the first slot is connected to the first positioning post through a second connecting plate. The second plate of the first limiting plate in the second slot is connected to the second mounting post through a third connecting plate. The fourth plate of the second limiting plate in the second slot is connected to the second positioning post through a fourth connecting plate.

[0008] Preferably, at least one side of each of the plurality of card plates arranged along the length direction of the second shell bottom is further provided with a limiting strip corresponding to the slot, and the limiting strip abuts against the outer side of the slot.

[0009] Preferably, a button and several LED beads are also installed on the upper side of the first circuit board. The button has several light-emitting holes corresponding to the LED beads so that the light emitted by the LED beads can be emitted from the light-emitting holes. The bottom of the second housing has a mounting hole corresponding to the button, and the button is installed in the mounting hole.

[0010] Preferably, a black elastic block and a light guide plate are provided between the button and the LED beads. The black elastic block is mounted on the first circuit board and has several through holes corresponding to several LED beads. The light guide plate is mounted on the black elastic block and has several light guide pillars corresponding to the light-emitting holes. The light guide pillars are embedded in the light-emitting holes.

[0011] Preferably, the lower side of the first circuit board is provided with a first interface and a second interface, and the first sidewall includes a first sub-sidewall, a second sub-sidewall, a third sub-sidewall and a fourth sub-sidewall connected in sequence. The first sub-sidewall and the third sub-sidewall are arranged along the length direction of the first shell bottom, and the second sub-sidewall and the fourth sub-sidewall are arranged along the width direction of the second shell bottom. The second sub-sidewall is provided with a first opening and a second opening corresponding to the first interface and the second interface. The second sub-sidewall is a concave first arc surface, and the first shell bottom is a concave second arc surface.

[0012] Preferably, there are two rechargeable batteries stacked together, and a second circuit board is disposed between the two rechargeable batteries and the first circuit board. The second circuit board is vertically disposed, attached to the ends of the two rechargeable batteries, and electrically connected to both rechargeable batteries. The second circuit board is also electrically connected to the first circuit board.

[0013] Preferably, the first circuit board has a mounting groove on the side near the rechargeable battery, and the upper part of the second circuit board is embedded in the mounting groove.

[0014] Compared with the prior art, this utility model provides a limiting card protrusion on the lower housing and a corresponding slot for each limiting card protrusion, and a card plate on the upper housing, so that the card plate is inserted into the slot and the limiting card protrusion is embedded in the limiting hole. The slot limits the two side walls of the card plate, thereby ensuring a better connection between the upper and lower housings and preventing the battery module housing from falling apart due to repeated drops. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the battery module according to an embodiment of the present invention.

[0016] Figure 2 This is an exploded structural diagram of a battery module according to an embodiment of the present invention.

[0017] Figure 3 This is another exploded structural diagram of the battery module according to an embodiment of the present invention.

[0018] Figure 4 This is a structural diagram of the lower shell in an embodiment of the present invention.

[0019] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0020] Figure 6 for Figure 4 Enlarged view of point B in the middle.

[0021] Figure 7This is a structural diagram of the upper shell in an embodiment of the present invention.

[0022] Figure 8 This is a structural diagram of the first circuit board, LED beads, black elastic block, and light guide plate in an embodiment of this utility model.

[0023] Explanation of reference numerals in the attached diagram: 10. Battery module; 1. Lower housing; 11. First housing bottom; 12. First sidewall; 121. First sub-sidewall; 122. Second sub-sidewall; 1221. First opening; 1222. Second opening; 123. Third sub-sidewall; 124. Fourth sub-sidewall; 13. Limiting protrusion; 14. Slot; 1401. First slot; 1402. Second slot; 141. First limiting plate; 1411. First plate; 1412. Second plate; 142. Second limiting plate; 1421. Third plate; 1422. Fourth plate; 15. Mounting post; 151. First mounting post; 152. Second mounting post; 153. Threaded hole 16. Positioning post; 161. First positioning post; 162. Second positioning post; 171. First connecting plate; 172. Second connecting plate; 173. Third connecting plate; 174. Fourth connecting plate; 2. Upper shell; 21. Second shell bottom; 22. Second side wall; 23. Clamping plate; 231. Limiting hole; 24. Limiting strip; 25. Mounting hole; 3. Rechargeable battery; 4. First circuit board; 41. Mounting groove; 5. Button; 51. Light-emitting hole; 6. Second circuit board; 71. LED lamp bead; 72. Black elastic block; 721. Perforation; 73. Light guide plate; 731. Light guide post; 8. First interface; 9. Second interface. Detailed Implementation

[0024] To explain in detail the technical content, structural features, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0025] like Figures 1 to 8As shown, this utility model embodiment provides a battery module 10, including a flat shell and a rechargeable battery 3 disposed inside the shell. The shell is formed by assembling a lower shell 1 and an upper shell 2 covering the lower shell 1. The lower shell 1 includes a first shell bottom 11 and a first side wall 12 surrounding the edge of the first shell bottom 11. The inner side of the first side wall 12 is evenly arranged with a plurality of limiting protrusions 13 protruding toward the inner side of the lower shell 1. Each limiting protrusion 13 has a first limiting plate 141 and a second limiting plate 142 on both sides to form a slot 14. The upper shell 2 includes a second shell bottom 21 and a second side wall 22 surrounding the edge of the second shell bottom 21. The inner side of the second side wall 22 is provided with a plurality of locking plates 23 corresponding to the plurality of limiting protrusions 13 and the slot 14. The locking plates 23 are sheet-shaped and have limiting holes 231 on the locking plates 23 corresponding to the limiting protrusions 13. The locking plates 23 are inserted into the slots 14 and the limiting protrusions 13 are embedded in the limiting holes 231. Specifically, the length dimension of the battery module 10 is greater than or equal to 6 cm and less than or equal to 8 cm, the width dimension of the battery module 10 is greater than or equal to 4 cm and less than or equal to 5 cm, and the height dimension of the battery module 10 is greater than or equal to 8 mm and less than or equal to 15 mm. The limiting protrusions 13 are evenly arranged around the first side wall 12. Each limiting protrusion 13 has a first limiting plate 141 and a second limiting plate 142 on both sides in the horizontal direction to form a slot 14. This allows the card plate 23 to be inserted into the slot 14 from top to bottom when the upper housing 2 is installed on the lower housing 1. Moreover, while the limiting protrusions 13 and the card plate 23 are engaged, the slots 14 further limit the two side walls of the card plate 23, thereby ensuring a better connection between the upper housing 2 and the lower housing 1.

[0026] In this embodiment of the utility model, a limiting protrusion 13 is provided on the lower housing 1 and a slot 14 is provided for each limiting protrusion 13, and a card plate 23 is provided on the upper housing 2, so that the card plate 23 is inserted into the slot 14 and the limiting protrusion 13 is embedded in the limiting hole 231. The slot 14 limits the two side walls of the card plate 23, thereby ensuring that the upper housing 2 and the lower housing 1 can be better connected, and avoiding the housing of the battery module 10 from falling apart due to repeated drops.

[0027] In this embodiment of the utility model, such as Figures 2 to 6 As shown, the first shell bottom 11 and the first side wall 12 form an accommodating space, in which the first circuit board 4 and the rechargeable battery 3 are installed. The first circuit board 4 and the rechargeable battery 3 are arranged sequentially along the length of the first shell bottom 11, resulting in a neat structure that is easy to install and maintain.

[0028] In this embodiment of the utility model, such as Figures 4 to 6As shown, at least two mounting posts 15 and at least two positioning posts 16 are provided on the inner side of the first housing bottom 11 for mounting the first circuit board 4. The at least two positioning posts 16 are located close to the rechargeable battery 3, and the at least two mounting posts 15 are located away from the rechargeable battery 3. Specifically, the first circuit board 4 is positioned and mounted by means of the mounting posts 15 and positioning posts 16, so that the first circuit board 4 has a certain distance from the first housing bottom 11, thereby forming the mounting space for the first interface 8 and the second interface 9 on the lower side of the first circuit board 4. Moreover, the first circuit board 4 has a first through hole corresponding to the positioning post 16, and the positioning post 16 is embedded in the first through hole to pre-position the first circuit board 4. The top surface of the mounting post 15 extends into the inner side of the mounting post 15 with a threaded hole 153. The first circuit board 4 also has a second through hole corresponding to the threaded hole 153. The first circuit board 4 is fixed by passing a screw through the second through hole and connecting it with the threaded hole 153. In addition, in this embodiment of the utility model, at least two mounting posts 15 are located away from the rechargeable battery 3, so that the first circuit board 4 is mounted more stably.

[0029] Furthermore, such as Figures 4 to 6As shown, the mounting post 15 includes a first mounting post 151 and a second mounting post 152, which are arranged side by side along the width direction of the first shell bottom 11. The positioning post 16 includes a first positioning post 161 and a second positioning post 162, which are also arranged side by side along the width direction of the first shell bottom 11. The first limiting plate 141 and the second limiting plate 142 are both L-shaped. The first limiting plate 141 includes a first plate 1411 connected to the first sidewall 12 and a... The second plate 1412 is connected to the first plate 1411. The second limiting plate 142 includes a third plate 1421 connected to the first sidewall 12 and a fourth plate 1422 connected to the third plate 1421. The first mounting post 151 and the first positioning post 161 are correspondingly arranged with a slot 14, and the slot 14 corresponding to the first mounting post 151 and the first positioning post 161 is the first slot 1401. The second mounting post 152 and the second positioning post 162 are correspondingly arranged with a slot 14, and the second mounting post 152 and the second positioning post 162 are correspondingly arranged with a slot 14. The slot 14 corresponding to the positioning post 162 is the second slot 1402. The second plate 1412 of the first limiting plate 141 in the first slot 1401 is connected to the first mounting post 151 through the first connecting plate 171. The fourth plate 1422 of the second limiting plate 142 in the first slot 1401 is connected to the first positioning post 161 through the second connecting plate 172. The second plate 1412 of the first limiting plate 141 in the second slot 1402 is connected to the second mounting post 152 through the third connecting plate 173. The second slot 1402... The fourth plate 1422 of the second limiting plate 142 in section 2 is connected to the second positioning post 162 through the fourth connecting plate 174. Specifically, the first connecting plate 171 and the second connecting plate 172 limit the first slot 1401, and the third connecting plate 173 and the fourth connecting plate 174 limit the second slot 1402, thereby ensuring that the first slot 1401 and the second slot 1402 are not easily deformed after being assembled with the card plate 23, further ensuring the stability of the connection between the upper housing 2 and the lower housing 1. The design is very ingenious.

[0030] Furthermore, such as Figure 7 As shown, each of the plurality of retaining plates 23 arranged along the length direction of the second shell bottom 21 has a limiting strip 24 on at least one side corresponding to the slot 14, and the limiting strip 24 abuts against the outer side of the slot 14. Specifically, a plurality of limiting strips 24 are arranged along the length direction of the second shell bottom 21. By the limiting strips 24 abutting against the outer side of the slot 14, the slot 14 is further prevented from deforming after being assembled with the retaining plate 23, and the stability of the connection between the upper shell 2 and the lower shell 1 is further ensured. In order to ensure the compactness of the battery module 10, the limiting strips 24 may not be arranged in the width direction of the second shell bottom 21.

[0031] In this embodiment of the utility model, such as Figure 1 , Figure 2, Figure 7 as well as Figure 8 As shown, a button 5 and several LED beads 71 ​​are also installed on the upper side of the first circuit board 4. The button 5 has several light-emitting holes 51 corresponding to the LED beads 71, allowing light emitted from the LED beads 71 ​​to be emitted from the light-emitting holes 51. A mounting hole 25 is provided on the bottom 21 of the second housing corresponding to the button 5, and the button 5 is installed in the mounting hole 25. Specifically, there can be three LED beads 71 ​​to indicate different usage states of the battery module 10. The LED beads 71 ​​are installed on the first circuit board 4 and electrically connected to it. This embodiment of the invention fully utilizes the space of the button 5 by providing light-emitting holes 51, resulting in a more compact and small structure, which is very beneficial for practical use.

[0032] Furthermore, a black elastic block 72 and a light guide plate 73 are provided between the button 5 and the LED beads 71. The black elastic block 72 is mounted on the first circuit board 4, and several through holes 721 are opened on the black elastic block 72 corresponding to several LED beads 71. The light guide plate 73 is mounted on the black elastic block 72, and several light guide pillars 731 are provided on the light guide plate 73 corresponding to the light-emitting holes 51. The light guide pillars 731 are embedded in the light-emitting holes 51. Specifically, as shown... Figure 8 As shown, the black elastic block 72 is designed so that the light emitted by the LED bead 71 is emitted only through the perforation 721. The black elastic block 72 can deform when subjected to downward pressure. For example, the material of the black elastic block 72 can be EVA material, the light guide plate 73 is transparent material, and the light guide column 731 is embedded in the light-emitting hole 51 so that the light emitted by the LED bead 71 is emitted through the perforation 721 and the light guide column 731. In addition, the light guide column 731 can also serve as a guide column for the button 5 during the up and down movement. The design is very ingenious.

[0033] In this embodiment of the utility model, such as Figures 4 to 6 as well as Figure 8As shown, the lower side of the first circuit board 4 is provided with a first interface 8 and a second interface 9. The first sidewall 12 includes a first sub-sidewall 121, a second sub-sidewall 122, a third sub-sidewall 123 and a fourth sub-sidewall 124 connected in sequence. The first sub-sidewall 121 and the third sub-sidewall 123 are arranged along the length direction of the first shell bottom 11, and the second sub-sidewall 122 and the fourth sub-sidewall 124 are arranged along the width direction of the second shell bottom 21. The second sub-sidewall 122 is provided with a first opening 1221 and a second opening 1222 corresponding to the first interface 8 and the second interface 9. The second sub-sidewall 122 is a concave first arc surface, and the first shell bottom 11 is a concave second arc surface. Specifically, the first interface 8 can be a DC interface, which is used to connect heating components in socks, scarves, gloves, etc. to heat the socks, scarves, gloves, etc. The second interface 9 can be a Type-C interface, which is used to charge the rechargeable battery 3. The second interface 9 can also be connected to a mobile phone to charge the mobile phone. The battery module 10 is built into the socks, scarves, gloves, etc. during use. When charging is needed, it can be taken out from the socks, scarves, gloves, etc. In addition, by setting the first shell bottom 11 and the second sub-side wall 122 as a curved structure, it is more convenient to grip when holding.

[0034] In this embodiment of the utility model, such as Figure 2 , Figure 3 as well as Figure 8 As shown, there are two rechargeable batteries 3 stacked together. A second circuit board 6 is also disposed between the two rechargeable batteries 3 and the first circuit board 4. The second circuit board 6 is vertically arranged and attached to the ends of the two rechargeable batteries 3, and is electrically connected to both rechargeable batteries 3 and the first circuit board 4. Specifically, the first circuit board 4 has a mounting groove 41 on the side near the rechargeable batteries 3. The upper part of the second circuit board 6 is embedded in the mounting groove 41 to fix the second circuit board 6. By stacking the two rechargeable batteries 3, a longer usage time can be ensured and the charging cycle can be reduced. Moreover, the mounting groove 41 ensures a more compact structure for the battery module 10.

[0035] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A battery module, characterized by: The device includes a flat shell and a rechargeable battery disposed within the shell. The shell is formed by assembling a lower shell and an upper shell covering the lower shell. The lower shell includes a first shell bottom and a first sidewall surrounding the edge of the first shell bottom. The inner side of the first sidewall is evenly arranged with a plurality of limiting protrusions protruding toward the inner side of the lower shell. Each limiting protrusion has a first limiting plate and a second limiting plate on both sides to form a slot. The upper housing includes a second bottom and a second sidewall surrounding the edge of the second bottom. The inner side of the second sidewall is provided with a plurality of card plates corresponding to a plurality of the limiting protrusions and the slot. The card plates are sheet-shaped and have limiting holes corresponding to the limiting protrusions. The card plates are inserted into the slot and the limiting protrusions are embedded in the limiting holes.

2. The battery module of claim 1, wherein: The first shell bottom and the first sidewall form an accommodating space, in which a first circuit board and the rechargeable battery are installed, and the first circuit board and the rechargeable battery are arranged sequentially along the length direction of the first shell bottom.

3. The battery module of claim 2, wherein: The inner side of the first housing bottom is also provided with at least two mounting posts and at least two positioning posts for mounting the first circuit board. At least two of the positioning posts are located close to the rechargeable battery, and at least two of the mounting posts are located away from the rechargeable battery.

4. The battery module of claim 3, wherein: The mounting posts include a first mounting post and a second mounting post, which are arranged side-by-side along the width direction of the first shell bottom. The positioning posts include a first positioning post and a second positioning post, which are also arranged side-by-side along the width direction of the first shell bottom. The first limiting plate and the second limiting plate are both L-shaped. The first limiting plate includes a first plate connected to the first sidewall and a second plate connected to the first plate. The second limiting plate includes a third plate connected to the first sidewall and a fourth plate connected to the third plate. The first mounting post and the first positioning post are corresponding to a slot, and the first mounting post is positioned such that... The slot corresponding to the first positioning post is a first slot, the second mounting post and the second positioning post are respectively provided in the slot, and the slot corresponding to the second mounting post and the second positioning post is a second slot. The second plate of the first limiting plate in the first slot is connected to the first mounting post through a first connecting plate. The fourth plate of the second limiting plate in the first slot is connected to the first positioning post through a second connecting plate. The second plate of the first limiting plate in the second slot is connected to the second mounting post through a third connecting plate. The fourth plate of the second limiting plate in the second slot is connected to the second positioning post through a fourth connecting plate.

5. The battery module of claim 1, wherein: Each of the plurality of card plates arranged along the length direction of the second shell bottom is provided with a limiting strip on at least one side corresponding to the slot, and the limiting strip abuts against the outer side of the slot.

6. The battery module of claim 2, wherein: The upper side of the first circuit board is also equipped with a button and several LED beads. The button has several light-emitting holes corresponding to the LED beads so that the light emitted by the LED beads can be emitted from the light-emitting holes. The bottom of the second housing has a mounting hole corresponding to the button, and the button is installed in the mounting hole.

7. The battery module of claim 6, wherein: A black elastic block and a light guide plate are provided between the button and the LED beads. The black elastic block is installed on the first circuit board and has several through holes corresponding to several LED beads. The light guide plate is installed on the black elastic block and has several light guide pillars corresponding to the light-emitting holes. The light guide pillars are embedded in the light-emitting holes.

8. The battery module of claim 7, wherein: The first circuit board has a first interface and a second interface on its lower side. The first sidewall includes a first sub-sidewall, a second sub-sidewall, a third sub-sidewall, and a fourth sub-sidewall connected in sequence. The first sub-sidewall and the third sub-sidewall are arranged along the length direction of the first shell bottom, and the second sub-sidewall and the fourth sub-sidewall are arranged along the width direction of the second shell bottom. The second sub-sidewall has a first opening and a second opening corresponding to the first interface and the second interface. The second sub-sidewall is a concave first arc surface, and the first shell bottom is a concave second arc surface.

9. The battery module of claim 2, wherein: The rechargeable battery comprises two batteries stacked together. A second circuit board is also disposed between the two rechargeable batteries and the first circuit board. The second circuit board is vertically disposed and attached to the ends of the two rechargeable batteries, and is electrically connected to both rechargeable batteries. The second circuit board is also electrically connected to the first circuit board.

10. The battery module of claim 9, wherein: The first circuit board has a mounting groove on the side near the rechargeable battery, and the upper part of the second circuit board is embedded in the mounting groove.

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