CN220914406U - Battery shell structure, battery and electric equipment - Google Patents

Abstract

The utility model discloses a battery shell structure, a battery and electric equipment, wherein the battery shell structure comprises a shell, a cover plate and a pole assembly, the shell comprises a shell bottom plate and a side plate encircling the outer periphery of the shell bottom plate, the shell bottom plate and the side plate jointly define a containing cavity with an opening, and the area of the shell bottom plate is larger than that of the side plate; the cover plate is arranged at the opening and used for closing the opening, and a first groove which is sunken towards the direction of the shell is formed in the cover plate; the pole assembly is mounted in the first recess. According to the battery shell structure provided by the embodiment of the utility model, the pole assembly is arranged on the cover plate, and the first groove is formed in the cover plate, so that the external space of the battery can be saved, and the battery can be assembled conveniently.

Description

Battery shell structure, battery and electric equipment

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery shell structure, a battery and electric equipment.

Background

The battery comprises casing utmost point post subassembly and electric core, and the utmost point post subassembly includes the utmost point post, and among the correlation technique, the utmost point post is installed on the less side of area of casing, and layout space is limited to the utmost point post often sets up with the mode of protrusion in this side, has taken up space, also is unfavorable for the assembly of battery.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a battery case structure, which can save the external space of the battery and facilitate the assembly of the battery by mounting the post assembly on the cap plate.

The utility model also provides a battery with the battery shell structure.

The utility model also provides electric equipment with the battery.

A battery case structure according to an embodiment of the first aspect of the present utility model includes: the shell comprises a shell bottom plate and a side plate encircling the outer periphery of the shell bottom plate, wherein the shell bottom plate and the side plate jointly define a containing cavity with an opening, and the area of the shell bottom plate is larger than that of the side plate; the cover plate is arranged at the opening and used for closing the opening, and a first groove which is sunken towards the direction of the shell is formed in the cover plate; and the pole assembly is arranged in the first groove.

According to the battery shell structure provided by the embodiment of the utility model, the pole assembly is arranged on the cover plate with a larger area, the layout space is larger, the position of the pole can be set according to actual requirements, and the cover plate is provided with the first groove, so that the pole assembly can be hidden in the first groove, the space layout of the whole battery shell structure is optimized, and the assembly of the battery can be optimized.

According to some embodiments of the utility model, the first groove is provided adjacent to an edge of the cover plate or the first groove extends to an edge of the cover plate.

According to some embodiments of the utility model, the accommodating cavities include a first accommodating cavity for accommodating the battery cells and a second accommodating cavity for accommodating the battery cells, the first accommodating cavity is located at one side of the first groove in a first direction, the second accommodating cavity is located at one side of the first groove in a second direction or at two sides of the first groove in a length direction, and the first direction is perpendicular to the second direction.

According to some embodiments of the utility model, the groove wall and the groove bottom of the first groove are abutted with the side plate, and the side plate is provided with a second groove matched with the first groove.

According to some embodiments of the utility model, the housing further comprises a flange fixedly connected with the cover plate, the flange is parallel to the housing bottom plate, the flange is arranged at one end of the side plate far away from the housing bottom plate, and the flange extends along a direction far away from the accommodating cavity.

According to some embodiments of the utility model, the flange turn-up is configured as an annulus surrounding the opening of the receiving cavity.

According to some embodiments of the utility model, the groove wall and the groove bottom of the first groove are both abutted with the flange turnup, and the flange turnup is provided with a third groove matched with the first groove.

According to some embodiments of the utility model, a first turnover edge is connected to an edge of the cover plate, one end of the first turnover edge is connected to the edge of the cover plate, the other end of the first turnover edge is turned towards the accommodating cavity and extends towards a direction parallel to the cover plate, a first slot is formed between the first turnover edge and the cover plate, the flange turnover edge is inserted into the first slot, or a second turnover edge is connected to an edge of the flange turnover edge, one end of the second turnover edge is connected to an edge of the flange turnover edge, the other end of the second turnover edge is turned towards the accommodating cavity and extends towards a direction parallel to the flange turnover edge, a second slot is formed between the second turnover edge and the flange turnover edge, and the cover plate is inserted into the second slot.

According to some embodiments of the utility model, the first recess extends to an edge of the cover plate, at least part of the first turndown edge extends to a groove wall and/or groove bottom of the first recess; or the bottom wall of the first groove is abutted with the flange turnup, the flange turnup is provided with a third groove matched with the first groove, the third groove extends to the edge of the flange turnup, and at least part of the second turnup edge extends to the groove wall and/or the groove bottom of the third groove.

According to some embodiments of the utility model, the edges of the two opposite sides of the cover plate are turned towards the direction of approaching each other to form two first sliding grooves with opposite openings, the flange flanges on the two sides of the accommodating cavity are respectively slidably fit in the two first sliding grooves, or the edges of the flange flanges on the two sides of the accommodating cavity are turned towards the accommodating cavity to form two second sliding grooves, and the cover plate is slidably fit between the two second sliding grooves.

According to some embodiments of the utility model, the pole assembly comprises a pole and an electrical connection piece that are electrically connected, the pole being arranged in the first recess, the electrical connection piece being arranged in the receiving cavity.

According to some embodiments of the utility model, the cover plate is provided with a through hole penetrating through the thickness direction of the cover plate, and the pole is electrically connected with the electric connection sheet through the through hole.

According to some embodiments of the utility model, the pole assembly further comprises a first insulator between the electrical connection tab and the cover plate and a second insulator between the pole and the cover plate.

According to the battery of the embodiment of the second aspect of the utility model, the battery comprises a battery cell and the battery shell structure of the embodiment of the first aspect of the utility model, and the battery cell is arranged in the accommodating cavity.

According to the battery provided by the embodiment of the utility model, through the arrangement of the battery shell structure, the external space of the battery can be saved, and the battery can be assembled conveniently.

According to some embodiments of the utility model, the battery cell includes a first polarity tab electrically connected to the pole assembly and a second polarity tab electrically connected to the housing or the cover plate, the first polarity tab and the second polarity tab having opposite polarities.

According to some embodiments of the utility model, the battery cell includes a first polar tab and a second polar tab, the pole assembly includes a first pole assembly and a second pole assembly, the first polar tab is electrically connected to the first pole assembly, the second polar tab is electrically connected to the second pole assembly, and the first polar tab and the second polar tab are opposite in polarity.

According to some embodiments of the utility model, the battery further comprises an insulating separator, the insulating separator is provided with a plurality of spaced insulating channels, and the first polar lugs and the second polar lugs uniformly and correspondingly penetrate through the insulating channels.

The electric device according to the embodiment of the third aspect of the utility model comprises the battery according to the embodiment of the second aspect of the utility model, and the layout of the electric device can be optimized by arranging the battery according to the embodiment on the electric device.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is an exploded view of a battery according to some embodiments of the present utility model;

fig. 2 is an exploded view of a battery according to some embodiments of the present utility model;

fig. 3 is an exploded view of a battery according to some embodiments of the present utility model;

fig. 4 is an exploded view of a battery case structure according to some embodiments of the present utility model;

FIG. 5 is a partial schematic view of the housing of FIG. 4;

Fig. 6 is an exploded view of a battery case structure according to some embodiments of the present utility model;

FIG. 7 is a schematic view of the housing of FIG. 6;

FIG. 8 is a partial cross-sectional view of FIG. 6;

FIG. 9 is an exploded view of the cover plate and pole assembly of FIG. 4;

FIG. 10 is an exploded view of the cover plate and pole assembly wherein the first insulator and the second insulator are integrally injection molded;

FIG. 11 is a partial schematic view of the cover plate of FIG. 9;

Fig. 12 is a schematic view of a cover plate according to some embodiments of the utility model.

Fig. 13 is an exploded view of a battery according to some embodiments of the present utility model.

Reference numerals:

100. a battery;

10. a battery housing structure;

20. A housing; 21. a receiving chamber; 22. a shell bottom plate; 23. a side plate; 24. flange flanging; 25. a second flanging; 26. a third groove; 27. a second slot; 231. a second groove;

30. A cover plate; 31. a first groove; 33. a first flanging; 34. a first edge; 35. a first chute;

40. A pole assembly; 41. an electrical connection piece; 43. a pole; 45. a first insulating member; 46. a second insulating member; 47. a through hole;

50. A battery cell; 51. a tab;

61. An explosion-proof valve; 62. a liquid injection hole;

7. an insulating separator; 71. insulating the channel.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

A battery case structure 10 according to an embodiment of the present utility model is described below with reference to fig. 1 to 13.

Referring to fig. 1 to 13, the battery case structure 10 includes a case 20, a cap plate 30, and a post assembly 40, the case 20 having a receiving cavity 21, the case 20 including a case bottom plate 22 and a side plate 23 surrounding an outer circumference of the case bottom plate 22, the case bottom plate 22 and the side plate 23 constructing the receiving cavity 21 having an opening, the area of the case bottom plate 22 being larger than that of the side plate 23, and in one specific example shown in fig. 1, the receiving cavity 21 having an opening upward, since the opening is opposite to the case bottom plate 22 in upper and lower directions, the opening is large, the cap plate 30 is disposed at the opening of the receiving cavity 21 to close the opening of the receiving cavity 21, and the battery cell 50 may be disposed in the receiving cavity 21. The opening is larger, the area of the cover plate 30 is larger, and the layout space is larger by mounting the pole 43 on the cover plate 30 with a larger area, so that the position of the pole 43 can be set according to actual requirements.

In an alternative example, the housing 20 and the cover plate 30 are metal conductive members, the materials may be iron alloy or aluminum alloy, the thickness of the housing 20 and the cover plate 30 may range from 20 μm to 500 μm, the housing 20 and the cover plate 30 may have square structures or L-shaped, T-shaped, U-shaped or other special structures, and the housing 20 and the cover plate 30 may be welded by ultrasonic welding, hot-melt welding, laser welding or the like to seal the accommodating cavity 21.

The electrode post assembly 40 is mounted on the cap plate 30, and in one specific example shown in fig. 1, 9 and 10, the electrode post assembly 40 includes an electrical connection piece 41 and an electrode post 43, the electrical connection piece 41 is located in the accommodating cavity 21, the electrical connection piece 41 is electrically connected with the electrode post 43, for example, an opening of the accommodating cavity 21 is upward, and the cap plate 30 is mounted on the upper side of the case 20, so that an upper mounting space can be better utilized, an external space of the battery 100 can be saved, and the assembly of the battery 100 is facilitated.

Further, the battery 100 further includes a liquid injection hole 62 and a pressure release valve 61, and the liquid injection hole 62 and the pressure release valve 61 may be disposed on the housing 20 or the cover plate 30, respectively; or the liquid injection hole 62 and the pressure release valve 61 can be arranged on the shell 20 or the cover plate 30, and can be adjusted according to the actual requirement of the battery 100.

Further, the side of the cover plate 30 away from the housing 20 has a first groove 31, the pole 43 is located in the first groove 31, referring to a specific example of fig. 1-2, the upper side of the cover plate 30 is a plane, and a part of the cover plate 30 is recessed toward the accommodating cavity 21, so as to form the first groove 31 on the upper side of the cover plate 30, the pole 43 is located in the first groove 31, and the first groove 31 can have a pre-positioning function on the pole 43, so that the assembly of the pole 43 can be facilitated. The first groove 31 is arranged on the upper side surface of the cover plate 30, so that the pole 43 does not occupy the space outside the upper side surface of the cover plate 30, the external space of the battery 100 can be saved, and the assembly of external space parts of the battery 100 is facilitated.

According to the battery case structure 10 of the embodiment of the utility model, the polar columns 43 are installed on the cover plate 30 with a larger area, the layout space is larger, the positions of the polar columns 43 can be set according to actual requirements, the cover plate 30 is provided with the first grooves 31, and the polar columns 43 can be hidden in the first grooves 31, so that the space layout of the whole battery case structure 100 is optimized, and the assembly of the battery can be optimized.

According to some embodiments of the present utility model, the first groove 31 is provided adjacent to an edge of the cover plate 30, or the first groove 31 extends to an edge of the cover plate 30. Referring to one example shown in fig. 2, the first groove 31 is spaced apart from the first edge 34 in the width direction of the first groove 31, and referring to one example shown in fig. 1, the groove bottom of the first groove 31 extends to the first edge 34, so that the processing and manufacturing of the first groove 31 can be facilitated.

Referring to the example shown in fig. 1, the edge of one side of the cover plate 30 is a first edge 34, and the first groove 31 is disposed adjacent to the first edge 34, and the first groove 31 extends along the first edge 34 in length. Thereby, the occupation of the cover plate 30 by the first groove 31 in the width direction thereof can be reduced, and thus, the space of the accommodating chamber 21 can be optimized, thereby enabling more cells to be placed in the accommodating chamber 21.

According to some embodiments of the present utility model, the accommodating cavity 21 includes a first accommodating cavity accommodating the battery cell and a second accommodating cavity accommodating the battery cell, the first accommodating cavity being located at one side of the first groove 31 in the first direction, the second accommodating cavity being located at one side of the first groove in the second direction or at both sides of the first groove in the second direction, the first direction being perpendicular to the second direction.

Referring to the examples shown in fig. 1, 2 and 4, the first groove 31 is rectangular, the first direction is the width direction of the first groove 31, the second direction is the length direction of the first groove 31, and the second accommodating chambers are located at two sides of the length direction of the first groove 31.

Referring to an example shown in fig. 3, the first groove 31 is rectangular, the first direction is a width direction of the first groove 31, the second direction is a length direction of the first groove 31, and the second accommodating cavity is located at one side of the length direction of the first groove 31.

According to some embodiments of the present utility model, the groove wall and the groove bottom of the first groove 31 are abutted with the side plate, and the side plate 23 is provided with a second groove 231 matched with the first groove 31. Referring to an example shown in fig. 1, the first groove 31 is stamped by a part of the cover plate 30, the side plate 23 is abutted up and down with the first groove 31, the side plate 23 has a second groove 231 matched with the first groove 31, the second groove 231 is matched with the first groove 31 to seal the accommodating cavity 21, and meanwhile, the second groove 231 is matched with the first groove 31, so that positioning between the housing 20 and the cover plate 30 can be facilitated.

According to some embodiments of the present utility model, the housing 20 further includes a flange 24 fixedly connected to the cover plate 30, the flange 24 is parallel to the bottom plate 22, the flange 24 is disposed at an end of the side plate 23 away from the bottom plate 22, the flange 24 extends in a direction away from the accommodating cavity 21, referring to a specific example shown in fig. 3, the housing 20 includes the bottom plate 22, the side plate 23 and the flange 24, a lower end of the side plate 23 is connected to the bottom plate 22 to form the accommodating cavity 21 with an upward opening, one end of the flange 24 is connected to a lower end of the side plate 23, and the other end of the flange 24 extends in a direction away from the accommodating cavity 21, and the flange 24 is fixedly connected to the cover plate 30, for example, the flange 24 and the cover plate 30 may be welded by ultrasonic welding, heat welding, laser welding, or the like. Through set up flange turn-ups 24 on casing 20, can be convenient for the apron 30 be connected with casing 20 for the connected mode of apron 30 and casing 20 is simple, can also increase the area of being connected of casing 20 and apron 30 simultaneously, can increase the joint strength of casing 20 and apron 30.

According to some embodiments of the present utility model, referring to a specific example shown in fig. 3, the flange 24 is configured as a ring shape surrounding the opening of the accommodating cavity 21, and the flange 24 is connected to the side plates 23 around the housing 20, so that the connection area between the housing 20 and the cover plate 30 can be increased, the connection strength between the housing 20 and the cover plate 30 can be enhanced, and the tightness between the housing 20 and the cover plate 30 can be further increased.

According to some embodiments of the utility model, both the groove wall and the groove bottom of the first groove 31 abut the flange turn-up 24, the flange turn-up 24 having a third groove 26 adapted to the first groove 31. Referring to the example shown in fig. 4 to 10, the cover plate 30 has a connection region fixedly connected with the flange 24, a portion of the connection region protrudes toward the receiving cavity 21 to form a first groove 31 on an upper side of the connection region, the pole 43 is located in the first groove 31, the flange 24 has a third groove 26 adapted to the first groove 31, and a bottom and a wall of the first groove 31 may be accommodated in the third groove 26 to seal the receiving cavity 21. The first recess 31 may have a predetermined positioning effect on the pole 43, facilitating assembly of the pole 43. The first groove 31 is arranged on the upper side surface of the connecting area, so that the pole 43 does not occupy the space outside the upper side surface of the cover plate 30, the external space of the battery 100 can be saved, and the assembly of external space parts of the battery 100 is facilitated. And, the cooperation of the first groove 31 and the third groove 26 may facilitate the positioning between the housing 20 and the cover plate 30.

According to some embodiments of the present utility model, the edge of the cover plate 30 is connected with a first flanging 33, one end of the first flanging 33 is connected with the edge of the cover plate 30, the other end of the first flanging 33 extends towards the direction parallel to the cover plate 30 after being folded towards the accommodating cavity 21, a first slot is formed between the first flanging 33 and the cover plate 30, and the flange flanging 24 is inserted into the first slot. Referring to fig. 4-12, the edge of one side of the cover plate 30 is the first edge 34, the first groove 31 is arranged adjacent to the first edge 34, the first edge 34 is connected with the first flanging 33, and when the cover plate 30 is assembled on the shell 20, the flange flanging 24 is matched with the first slot in a positioning manner, so that the assembly difficulty of the shell 20 and the cover plate 30 can be reduced, and the assembly precision of the shell 20 and the cover plate 30 can be improved;

According to some embodiments of the utility model, the flange 24 has a second flange 25 connected to its edge, one end of the second flange 25 being connected to the edge of the flange 24, the other end extending in a direction parallel to the flange 24 after being folded towards the receiving cavity 21, a second slot 27 is formed between the second flanging 25 and the flange flanging 24, a cover plate 30 is inserted into the second slot 27, specifically, the outer periphery of the flange flanging 24 is also connected with the second flanging 25 which is turned towards the third groove 26, a second slot 27 which is open towards the inner side is formed between the second flanging 25 and the flange flanging 24, the slot bottom and/or the slot wall of the first groove 31 are/is adapted in the second slot 27, the slot bottom of the first groove 31 is/is adapted in the second slot 27, the slot wall of the first groove 31 is/is adapted in the second slot 27, and the slot bottom and the slot wall of the first groove 31 are/is also adapted in the second slot 27. When the cover plate 30 is assembled on the shell 20, the cover plate 30 is inserted into the second slot 27, so that the assembly difficulty of the shell 20 and the cover plate 30 can be reduced, and the assembly precision of the shell 20 and the cover plate 30 can be improved.

According to some embodiments of the present utility model, the first groove 31 extends to the edge of the cover plate 30, at least part of the first turnup edge 33 extends to the groove wall and/or groove bottom of the first groove 31, and referring to fig. 4-12, the first turnup edge 33 extends along the side edge of the cover plate 30, and the first turnup edge 33 extends from the groove bottom of the first groove 31 to the cover plate 30 outside the first groove 31, so that as many flange turnups 24 as possible fit into the first groove, so that the first turnup edge 33 can clamp as many flange turnups 24 as possible, further reducing the difficulty of assembling the housing 20 and the cover plate 30, and of course, it will be understood that the first turnup edge 33 may extend only to the groove wall of the first groove 31, or the first turnup edge 33 may extend only to the groove bottom of the first groove 31, which is not limited herein.

According to some embodiments of the utility model, the bottom wall of the first recess 31 abuts the flange rim 24, the flange rim 24 having a third recess 26 adapted to the first recess 31, the third recess 26 extending to the edge of the flange rim 24, at least part of the second rim 25 extending to the groove wall and/or groove bottom of the third recess 26. In one example, the bottom of the third groove 26 extends to the edge of the flange 24, the second turnup edge 25 extends along the side edge of the flange 24, the second turnup edge 25 extends from the bottom of the third groove 26 to the flange 24 outside the third groove 26, so that as many cover plates 30 as possible fit into the second slot 27, so that the second turnup edge 25 can clamp as many cover plates 30 as possible, further reducing the difficulty of assembling the housing 20 and the cover plates 30, and of course, it is understood that the second turnup edge 25 may extend only to the bottom of the third groove 26, or the second turnup edge 25 may extend only to the bottom of the third groove 26, which is not limited herein.

According to some embodiments of the present utility model, referring to fig. 10, the included angle between the groove bottom and the groove wall of the first groove 31 is an obtuse angle, which can facilitate the press forming of the first groove 31, and also facilitate the installation of the pole 43, and also facilitate the sliding assembly of the housing 20 and the cover plate 30. Referring to fig. 5 and 7, the included angle between the groove bottom and the groove wall of the third groove 26 is an obtuse angle, so that the third groove 26 can be conveniently punched and formed, the second flanging 25 can be conveniently machined and formed, and the shell 20 and the cover plate 30 can be conveniently assembled in a sliding manner.

According to some embodiments of the present utility model, edges of two opposite sides of the cover plate 30 are turned towards directions approaching each other to form two first sliding grooves 35 with opposite openings, flange flanges 24 on two sides of the accommodating cavity 21 are slidably fitted into the two first sliding grooves 35, referring to fig. 12, the cover plate 30 is rectangular, two sides of the width direction of the cover plate 30 are turned towards the inside to form the first sliding grooves 35, flange flanges 24 on two sides of the accommodating cavity 21 are slidably fitted into the two first sliding grooves 35, the housing 20 and the cover plate 30 can be slidably assembled, the first sliding grooves 35 can play a role of assembly positioning, assembly difficulty of the housing 20 and the cover plate 30 can be reduced, assembly accuracy of the housing 20 and the cover plate 30 can be improved, and combined thickness of the housing 20 and the cover plate 30 can be increased to improve strength of the battery housing structure 10.

According to some embodiments of the present utility model, edges of the flange flanges 24 located at both sides of the receiving cavity 21 are folded toward the receiving cavity 21 to construct two second sliding grooves, the cover plate 30 is slidably fitted between the two second sliding grooves, specifically, in the width direction of the cover plate 30, the outer periphery of the flange flanges 24 is folded toward the inside to construct the second sliding grooves, both sides of the cover plate 30 in the width direction are slidably fitted in the second sliding grooves, the housing 20 and the cover plate 30 can be slidably assembled, the second sliding grooves can play a role of assembly positioning, the assembly difficulty of the housing 20 and the cover plate 30 can be reduced, the assembly accuracy of the housing 20 and the cover plate 30 can be improved, and the combined thickness of the housing 20 and the cover plate 30 can be increased to improve the strength of the battery housing structure 10.

According to some embodiments of the present utility model, the post assembly 40 includes the electric connection tab 41 and the post 43, the electric connection tab 41 is located in the receiving cavity 21, the electric connection tab 41 is electrically connected to the post 43, for example, the opening of the receiving cavity 21 is upward, and the cap plate 30 is mounted on the upper side of the case 20, so that the upper mounting space can be better utilized, thereby saving the external space of the battery 100 and facilitating the assembly of the battery 100.

According to some embodiments of the present utility model, referring to fig. 9, the post assembly 40 further includes a first insulating member 45 and a second insulating member 46, the first insulating member 45 being located between the electrical connection pad 41 and the cap plate 30, the first insulating member 45 being used to insulate the electrical connection pad 41 and the cap plate 30. A second insulator 46 is located between the post 43 and the cap plate 30, the second insulator 46 serving to insulate the post 43 and the cap plate 30.

According to some embodiments of the present utility model, referring to fig. 9, the electrical connection piece 41 is electrically connected to the tab 51 of the electrical core 50, and the cover plate 30, the first insulating member 45 and the second insulating member 46 each have a through hole thereon to allow the post 43 to pass through, and the post 43 is electrically connected to the electrical connection piece 41 through the through hole. The post 43 may compress the first and second insulating members 45 and 46, and the first and second insulating members 45 and 46 may be compressed to seal the through hole 47 in the cap plate 30. A seal ring is formed on the second insulating member 46, the seal ring is connected to a peripheral wall of the through hole of the second insulating member 46, the through hole of the first insulating member 45 communicates with the through hole of the seal ring, and the seal ring is located in the through hole 47 of the cover plate 30 for insulating the electric connection piece 41 from the cover plate 30. For example, the electrical connection piece 41 and the pole 43 may be fixedly connected by welding.

According to some embodiments of the present utility model, referring to fig. 10, the first insulating member 45 and the second insulating member 46 are injection molded on the side surface of the cover plate 30, and the first insulating member 45 and the second insulating member 46 may be integrally injection molded on the cover plate 30, so that the first insulating member 45 may be prevented from passing through the through hole 47 on the cover plate 30, the assembly difficulty of the first insulating member 45 and the second insulating member 46 may be reduced, and the insulation between the first insulating member 45 and the second insulating member 46 and the cover plate 30 may be improved.

The battery 100 according to the embodiment of the second aspect of the present utility model includes the battery cell 50 and the battery case structure 10 according to the embodiment of the first aspect of the present utility model, and the battery cell 50 is disposed in the accommodating cavity 21.

According to the battery 100 of the embodiment of the utility model, by the battery case cover structure of the embodiment, the external space of the battery 100 can be saved, and the assembly of the battery 100 is facilitated.

In order to improve the output overcurrent and temperature control capability of the battery, the battery core 50 may have a plurality of tabs 51, where the tabs 51 are first polarity tabs or second polarity tabs, and the first polarity tabs may be one or more, and the second polarity tabs may be one or more, so as to facilitate the overcurrent and temperature control of the battery. The plurality of tabs 51 can be arranged in the same direction as the battery cell 50, and can be arranged in different positions according to requirements. An insulating partition plate 7 can be further added, and the insulating partition plate 7 is provided with insulating channels 71 matched with the number of the lugs 51 so as to limit the relative positions of the lugs 51, avoid the risk of mutual play, and prevent the conduction of the positive terminal and the negative terminal of the battery to cause short circuit. In particular, for the first polar tabs or the second polar tabs, a plurality of matched polar post assemblies 40 are disposed at corresponding positions on the cover plate for connection so as to improve the output overcurrent and temperature control capability of the electrode. Of course, it is understood that the housing 20 and the cover 30 may be uncharged, i.e., the second polarity tab is not electrically connected to the housing 20 or the cover 30.

According to some embodiments of the present utility model, the battery cell 50 includes a first polar tab electrically connected to the pole assembly 40 and a second polar tab electrically connected to the housing 20 or the cover 30, the first polar tab and the second polar tab having opposite polarities, in one example, the pole assembly 40 includes one pole 43, the negative pole tab of the battery cell 50 is electrically connected to the housing 20 or the cover 30, and the positive pole tab of the battery cell 50 is electrically connected to the pole 43. For example, in the embodiment of fig. 13, one negative electrode tab (not shown) and two positive electrode tabs (i.e., two tabs 51 in fig. 13) are designed, the negative electrode tab is welded on the housing 20 or the cover 30, and the other two positive electrode tabs are respectively connected to the two electrode posts 43, so as to improve the output overcurrent and temperature control capability of the positive electrode of the battery and improve the safety performance of the battery.

According to some embodiments of the present utility model, the cell 50 includes a first polarity tab and a second polarity tab, the post assembly 40 includes a first post assembly and a second post assembly, the first polarity tab is electrically connected to the first post assembly, the second polarity tab is electrically connected to the second post assembly, and the first polarity tab and the second polarity tab are opposite in polarity. In one example, the first polarity tab is a positive electrode tab and the second polarity tab is a negative electrode tab, whereby the first pole assembly is positively charged and the second pole assembly is negatively charged, and therefore, the housing 20 and cover 30 in this example are not charged, and the electrical core 50 provides power to the external consumer through the first pole assembly and the second pole assembly.

Optionally, the first pole component may be provided with one or more, the second pole component may be provided with one or more, and the first pole component and the second pole component may be provided with one or more, which are not limited, and may be set according to actual requirements.

According to some embodiments of the present utility model, as shown in fig. 13, the battery further includes an insulating separator 7, the insulating separator 7 has a plurality of spaced insulating channels 71, and the first polar tab and the second polar tab are respectively and uniformly inserted into the insulating channels 71, so that a short circuit can be avoided.

According to the electric equipment provided by the embodiment of the third aspect of the utility model, comprising the battery provided by the embodiment of the second aspect of the utility model, the layout of the electric equipment can be optimized by arranging the battery provided by the embodiment of the utility model on the electric equipment.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, reference to the terms "some embodiments," "optionally," "further," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (18)

1. A battery case structure, comprising:

the shell comprises a shell bottom plate and a side plate encircling the outer periphery of the shell bottom plate, wherein the shell bottom plate and the side plate jointly define a containing cavity with an opening, and the area of the shell bottom plate is larger than that of the side plate;

The cover plate is arranged at the opening and used for closing the opening, and a first groove which is sunken towards the direction of the shell is formed in the cover plate;

and the pole assembly is arranged in the first groove.

2. The battery housing structure of claim 1, wherein the first groove is disposed adjacent to an edge of the cover plate or the first groove extends to an edge of the cover plate.

3. The battery case structure according to claim 1 or 2, wherein the accommodation chamber includes a first accommodation chamber for accommodating the battery cell and a second accommodation chamber for accommodating the battery cell, the first accommodation chamber being located at one side of the first groove in a first direction, the second accommodation chamber being located at one side of the first groove in a second direction or at both sides of the first groove in a length direction, the first direction being perpendicular to the second direction.

4. The battery case structure according to claim 1, wherein both a groove wall and a groove bottom of the first groove are abutted against the side plate, and the side plate has a second groove that is fitted with the first groove.

5. The battery housing structure of claim 1, wherein the housing further comprises a flange fixedly connected to the cover plate, the flange is parallel to the housing bottom plate, the flange is disposed at one end of the side plate away from the housing bottom plate, and the flange extends in a direction away from the receiving cavity.

6. The battery housing structure of claim 5, wherein the flange bead is configured as an annular ring surrounding an opening of the receiving cavity.

7. The battery housing structure of claim 5, wherein the groove wall and groove bottom of the first groove are both in abutment with the flange bead having a third groove adapted to the first groove.

8. The battery housing structure of claim 5, wherein,

The edge of the cover plate is connected with a first turnover edge, one end of the first turnover edge is connected with the edge of the cover plate, the other end of the first turnover edge faces the accommodating cavity to be turned over and extends towards the direction parallel to the cover plate, a first slot is formed between the first turnover edge and the cover plate, and the flange turnover edge is inserted in the first slot, or

The flange flanging edge is connected with a second flanging edge, one end of the second flanging edge is connected with the flange flanging edge, the other end of the second flanging edge faces the accommodating cavity to be folded and extends towards the direction parallel to the flange flanging edge, a second slot is formed between the second flanging edge and the flange flanging edge, and the cover plate is inserted into the second slot.

9. The battery housing structure of claim 8, wherein the first recess extends to an edge of the cover plate, and at least a portion of the first turnover extends to a groove wall and/or a groove bottom of the first recess;

Or the bottom wall of the first groove is abutted with the flange turnup, the flange turnup is provided with a third groove matched with the first groove, the third groove extends to the edge of the flange turnup, and at least part of the second turnup edge extends to the groove wall and/or the groove bottom of the third groove.

10. The battery housing structure of claim 5, wherein,

The edges of the two opposite sides of the cover plate are turned towards the directions approaching each other to form two first sliding grooves with opposite openings, the flange flanges on the two sides of the accommodating cavity are respectively slidably fit into the two first sliding grooves, or

The edges of the flange flanges positioned on two sides of the accommodating cavity are turned towards the accommodating cavity to form two second sliding grooves, and the cover plate is slidably matched between the two second sliding grooves.

11. The battery housing structure of claim 1, wherein the post assembly comprises a post and an electrical connection tab that are electrically connected, the post being disposed within the first recess, the electrical connection tab being disposed within the receiving cavity.

12. The battery case structure according to claim 11, wherein the cap plate has a through hole penetrating through a thickness direction of the cap plate, and the post is electrically connected to the electrical connection piece through the through hole.

13. The battery housing structure of claim 11, wherein the post assembly further comprises a first insulator between the electrical connection tab and the cover plate and a second insulator between the post and the cover plate.

14. A battery, comprising: a battery cell and the battery housing structure of any one of claims 1-13, the battery cell disposed within the receiving cavity.

15. The battery of claim 14, wherein the cell comprises a first polarity tab electrically connected to the post assembly and a second polarity tab electrically connected to the housing or the cover plate, the first polarity tab and the second polarity tab being opposite in polarity.

16. The battery of claim 14, wherein the cell comprises a first polarity tab and a second polarity tab, the post assembly comprises a first post assembly and a second post assembly, the first polarity tab is electrically connected to the first post assembly, the second polarity tab is electrically connected to the second post assembly, and the first polarity tab is opposite in polarity to the second polarity tab.

17. The battery of claim 15 or 16, further comprising an insulating separator having a plurality of spaced apart insulating channels, the first and second polarity tabs being disposed within the insulating channels in uniform correspondence.

18. A powered device comprising a battery as claimed in any one of claims 14-17.