CN218498293U - Battery box and battery device - Google Patents

Abstract

The utility model relates to a battery technology field specifically is about a battery box and battery device, the battery box includes: the box body is provided with a connecting through hole; the mounting panel comprises a panel main body and a connecting bulge, the connecting bulge is arranged on the panel main body, and the connecting bulge penetrates through the connecting through hole; the connector is mounted to the mounting panel; wherein, the installation panel is close to the one side of box has first district and second district, the second district encircles connect the arch, first district is located the second district is kept away from connect bellied one side, the second district is provided with and dodges the groove, first district with the box orientation the one side of installation panel is connected. The safety of the battery device can be improved.

Description

Battery box and battery device

Technical Field

The disclosure relates to the technical field of batteries, in particular to a battery box body and a battery device.

Background

A battery pack is often provided in an electric vehicle, and the battery pack is used to power the electric vehicle. The battery pack comprises a plurality of batteries and a box body, the batteries are arranged in the box body, and in order to realize the electric connection between the batteries and an external power supply and the electric connection between the batteries and the external power supply and the electric appliance, the box body is provided with an electric connector. At present, when the electrical connector is connected with a box body, the problem of unstable connection easily occurs, so that the electrical connector easily has short circuit and other faults, and the battery pack has safety risks.

It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The present disclosure is directed to a battery box and a battery device, so as to improve the safety of the battery device at least to a certain extent.

According to an aspect of the present disclosure, there is provided a battery case, including:

the box body is provided with a connecting through hole;

the mounting panel comprises a panel main body and a connecting bulge, the connecting bulge is arranged on the panel main body, and the connecting bulge penetrates through the connecting through hole;

an electrical connector mounted to the mounting panel;

wherein, the installation panel is close to the one side of box has first district and second district, the second district encircles connect the arch, first district is located the second district is kept away from connect bellied one side, the second district is provided with and dodges the groove, first district with the box orientation the one side of installation panel is connected.

The battery box that this disclosed embodiment provided, install the electrical connector in the box through the installation panel, the connection stability of electrical connector has been increased, the risk of faults such as short circuit has been reduced to the electrical connector, battery device's security has been promoted, and the one side that the installation panel is close to the box has first district and second district, the connection arch is encircleed in the second district, the second district is located in the first district and is kept away from the one side of connection arch, the second district is provided with dodges the groove, installation panel and box interference have been avoided through dodging the groove, further promotion the connection stability of electrical connector.

According to another aspect of the present disclosure, a battery device is provided, which includes the above battery case.

The battery device that this disclosed embodiment provided includes the battery box, install the electrical connector in the box through the installation panel in the battery box, the connection stability of electrical connector has been increased, the risk of faults such as short circuit has been reduced to the electrical connector, battery device's security has been promoted, and the one side that the installation panel is close to the box has first district and second district, the second district encircles connection protrusion, the second district is located in the first district and is kept away from connection protrusion's one side, the second district is provided with and dodges the groove, installation panel and box interference have been avoided through dodging the groove, further promotion the connection stability of electrical connector.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.

Fig. 1 is a schematic structural diagram of a battery box provided in an exemplary embodiment of the present disclosure;

fig. 2 is an exploded schematic view of a battery case provided in an exemplary embodiment of the present disclosure;

fig. 3 is a partially enlarged schematic view of a battery case provided in an exemplary embodiment of the present disclosure;

fig. 4 is a partially enlarged schematic view of another battery case provided in an exemplary embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a mounting panel according to an exemplary embodiment of the present disclosure.

Detailed Description

The technical solutions in the exemplary embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the exemplary embodiments of the present disclosure. The example embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure, and it is, therefore, to be understood that various modifications and changes may be made to the example embodiments without departing from the scope of the present disclosure.

In the description of the present disclosure, unless otherwise explicitly specified or limited, the terms "first", "second", and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more; the term "and/or" includes any and all combinations of one or more of the associated listed items. In particular, reference to "the" object or "an" object is also intended to mean one of many such objects possible.

The terms "connected," "secured," and the like are to be construed broadly and encompass, for example, a fixed connection, a removable connection, an integral connection, an electrical connection, or a signal connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present disclosure can be understood as a specific case by a person skilled in the art.

Further, in the description of the present disclosure, it is to be understood that the directional words "upper", "lower", "inner", "outer", etc., which are described in the exemplary embodiments of the present disclosure, are described at the angles shown in the drawings, and should not be construed as limiting the exemplary embodiments of the present disclosure. It will also be understood that, in the context of a connection between one element or feature and another element(s), "on," "under," or "inside" or "outside," it can be directly connected to the other element(s) "on," "under" or "inside" or "outside," or indirectly connected to the other element(s) "on," "under" or "inside" or "outside" through intervening elements.

An exemplary embodiment of the present disclosure provides a battery case, as shown in fig. 1 and 2, including: the box body 10, the installation panel 20 and the electric connector 30, wherein the box body 10 is provided with a connecting through hole; as shown in fig. 3, 4 and 5, the mounting panel 20 includes a plate main body 21 and a coupling protrusion 22, the coupling protrusion 22 is provided on the plate main body 21, and the coupling protrusion 22 is inserted into the coupling through hole; the connector is mounted to the mounting panel 20; the side of the installation panel 20 close to the box body 10 has a first area 211 and a second area 212, the second area 212 surrounds the connection protrusion 22, the first area 211 is disposed on the side of the second area 212 far away from the connection protrusion 22, the second area 212 is provided with an avoidance groove 201, and the first area 211 is connected with the side of the box body 10 facing the installation panel 20.

The battery box that this disclosed embodiment provided, install electrical connector 30 in box 10 through mounting panel 20, the connection stability of electrical connector 30 has been increased, the risk of faults such as short circuit has been reduced to electrical connector 30, the security of battery device has been promoted, and mounting panel 20 has first district 211 and second district 212 near the one side of box 10, second district 212 encircles connecting protrusion 22, one side that connecting protrusion 22 was kept away from to second district 212 is located to first district 211, second district 212 is provided with dodges groove 201, through dodging groove 201 and having avoided mounting panel 20 and box 10 to interfere, further the connection stability of electrical connector 30 has been promoted.

The following will describe each part of the battery box provided by the embodiment of the present disclosure in detail:

the case 10 may include a bottom plate 12 and a frame 11, the bottom plate 12 and the frame 11 are connected, and the bottom plate 12 and the frame 11 enclose an accommodating space for accommodating the battery and the cooling device, and the electrical connection member may be installed outside or inside the accommodating space. The box 10 is provided with a mounting portion for connecting the mounting panel 20, wherein the mounting portion may be provided on the frame 11 or the mounting portion may be provided on the bottom plate 12.

For example, the box 10 may be a rectangular parallelepiped or an approximately rectangular parallelepiped structure, the bottom plate 12 may be a rectangular or an approximately rectangular plate structure, and the frame 11 is a rectangular or an approximately rectangular frame 11. For example, the frame 11 may include a first frame, a second frame, a third frame, and a fourth frame, and the first frame, the second frame, the third frame, and the fourth frame are sequentially connected end to end. The first frame, the second frame, the third frame and the fourth frame are respectively connected with one side of the bottom plate 12 correspondingly.

In practical applications, the bottom plate 12 may be a solid bottom plate 12, or the bottom plate 12 may also be shared with a liquid cooling plate, that is, the liquid cooling plate is used as the bottom plate 12, and at least one liquid cooling channel is disposed in the liquid cooling plate and used for transmitting a cooling medium.

The mounting portion has at least one flat surface for mounting the mounting panel 20. When the mounting portion of the mounting panel 20 is provided on the frame 11, the outer side of the frame 11 has a flat portion provided with a connecting through hole penetrating through the frame 11. When the mounting panel 20 is provided on the bottom plate 12, the bottom plate 12 has a flat surface portion provided with a connecting through hole penetrating the bottom plate 12.

One end of the connecting through hole facing the plate main body 21 is provided with a chamfer (chamfer) which is opposed to the escape groove. The chamfer may extend all the way around the end of the connecting through hole. Through be provided with the corner cut in connect the through hole towards the one end of board main part 21, can be further avoid interfering, promote connection stability.

Further, the box body 10 provided by the embodiment of the present disclosure may further include a box cover 13, where the box cover 13 may be connected to a side of the frame 11 away from the bottom plate 12, and the box cover 13 and the frame 11 are hermetically connected. For example, a gasket may be provided between the bezel 11 and the lid 13. Of course, in practical applications, the box cover 13 may not be disposed in the box 10, for example, the box cover 13 of the box 10 is formed by a chassis of a vehicle, and the embodiment of the disclosure is not limited thereto.

The mounting panel 20 includes a plate main body 21 and a connecting protrusion 22, the connecting protrusion 22 is provided on the plate main body 21, and the connecting protrusion 22 is inserted into the connecting through hole. The side of the installation panel 20 close to the box body 10 is provided with a first area 211 and a second area 212, the second area 212 surrounds the connection protrusion 22, the first area 211 is arranged on the side of the second area 212 far away from the connection protrusion 22, the second area 212 is provided with an avoiding groove 201, and the first area 211 is connected with the side of the box body 10 facing the installation panel 20.

In the related art, due to reasons such as a processing process, a fillet is provided at a connection portion between the plate main body 21 and the connection protrusion 22, and the fillet may interfere with the connection between the plate main body 21 and the connection protrusion 22, that is, because the fillet may cause that one surface of the connection protrusion 22 facing the case 10 cannot be tightly attached to the surface of the case 10, the output end of the electrical connector 30 may be in an inclined state, so that the connection stability between the output end of the electrical connector 30 and the electrical connection member in the battery device is reduced, and the battery device may have a potential safety hazard. In the embodiment of the present disclosure, the avoidance groove 201 is disposed in the second region 212, so that the fillet at the root of the connection protrusion 22 is eliminated, the fillet at the root of the protrusion of the connector is prevented from interfering with the connection between the plate main body 21 and the connection protrusion 22, and the safety performance of the battery device is improved.

The plate body 21 is provided with one or more first through holes, the connecting protrusion 22 is provided with one or more second through holes, the first through holes of the plate body 21 correspond to the second through holes of the connecting protrusion 22, and the first through holes and the second through holes are used for electrode terminals of the electrical connector 30 to pass through. For example, two first through holes are provided in the plate main body 21, two second through holes are provided in the connecting protrusion 22, the first through holes and the second through holes correspond to each other one by one, the corresponding first through holes and the corresponding second through holes are coaxially provided, and the diameters of the corresponding first through holes and the corresponding second through holes are the same. The electrical connector 30 is provided with a first electrode terminal (positive terminal) and a second electrode terminal (negative terminal), which are respectively inserted into a set of through holes (a set of through holes includes a first through hole and a second through hole)

In a possible embodiment, the plate body 21 and the connecting protrusion 22 may be integrally formed, for example, the plate body 21 and the connecting protrusion 22 may be formed by casting or machining, and the first through hole and the second through hole may be both ends of the through hole in the mounting panel 20.

In another possible embodiment of the present disclosure, the plate body 21 and the connecting protrusion 22 may be formed as separate bodies, for example, the plate body 21 and the connecting protrusion 22 may be formed separately and then connected by welding or screwing. At the moment, the positions of the first through holes and the second through holes correspond to each other, and the corresponding first through holes are communicated with the corresponding second through holes.

The plate body 21 may have a rectangular parallelepiped structure or a circular disc structure, and the corresponding connecting protrusion 22 may have a prismatic or cylindrical structure. For example, the plate body 21 has a rectangular parallelepiped structure, the connecting protrusion 22 has a rectangular pillar structure, the connecting protrusion is disposed on one surface of the plate body 21, and the cross-sectional area of the connecting protrusion 22 is smaller than that of the plate body 21. Or the plate body 21 has a disk structure, the coupling projection 22 has a cylindrical structure, and the diameter of the coupling projection 22 is smaller than that of the plate body 21.

The side of the plate body 21 facing the box body 10 is provided with a first area 211 and a second area 212, and the second area 212 is arranged on the side of the first area 211 close to the connecting projection 22. The first region 211 and the second region 212 may be annular structures, for example, when the connecting protrusion 22 is cylindrical, the first region 211 and the second region 212 are annular; or when the coupling projection 22 is a prism, the first region 211 and the second region 212 are both polygonal ring-shaped. The second region 212 is adjacent to the connection projection 22, that is, the second region 212 is in contact with the connection projection 22, and there is no space between the second region 212 and the connection projection 22.

In the second region 212, an escape groove 201 is provided, the escape groove 201 surrounding the connection projection 22. The avoiding groove 201 may be fully distributed in the second region 212, that is, the avoiding groove 201 is in contact with the connecting protrusion 22, and there is no gap between the avoiding groove 201 and the connecting protrusion 22. The section of the avoidance groove 201 may be rectangular, or right trapezoid, etc. By arranging the avoiding groove 201 surrounding the connecting protrusion 22 in the second region 212, the fillet at the junction of the plate main body 21 and the connecting protrusion 22 can be prevented from interfering with the connection between the installation panel 20 and the box 10, the connection flatness between the installation panel 20 and the box 10 is improved, and the connection stability of the electrical connector 30 is improved.

Wherein, the width of the avoiding groove is 2mm-6mm. For example, the width of the avoidance groove 201 is 2mm, 3mm, 5mm, or 6mm, etc. The width of the avoidance groove 201 is the distance from the side wall of the avoidance groove 201 close to the coupling protrusion 22 to the side wall of the avoidance groove 201 far from the coupling protrusion 22.

The first region 211 may be a plane, and the plane of the first region 211 is perpendicular to the axis of the coupling protrusion 22. The mounting portion of the case 10 is a plane, and the plane of the mounting portion is perpendicular to the axis of the connecting through hole. Thus, when the connecting protrusion 22 is inserted into the connecting through hole, the first region 211 is parallel to the mounting portion, so that the first region 211 and the mounting portion can be tightly attached to each other.

When the mounting panel 20 is mounted on the bezel, the outer surface of the bezel has a flat surface which is closely attached to the first region 211 of the plate main body 21, and the flat surface is welded to the edge of the plate main body 21. When the installation panel 20 is installed on the base plate 12, the bottom surface of the base plate 12 has a flat surface which is closely attached to the first region 211 of the plate main body 21 and is welded to the edge of the plate main body 21.

In the embodiment of the present disclosure, the first region 211 of the mounting panel 20 and the case 10 are connected by welding. For example, it may be welded along the outer perimeter of the mounting panel 20. Furthermore, the connecting protrusion 22 is welded to the box body 10 at the end far away from the plate main body 21, so that the two ends of the mounting panel 20 are connected to the box body 10, and the connection stability and balance are improved. Of course, the mounting panel 20 and the box 10 may be connected in other ways in practical applications, and the disclosed embodiment is not limited thereto.

When the installation panel 20 and the box 10 are connected by welding, the ambient temperature of the welded portion may increase during the welding process, and the increase of the ambient temperature of the welded portion may cause the air in the avoiding groove 201 to be heated, and the air in the avoiding groove 201 may expand after being heated. In order to avoid the relative position deviation between the installation panel 20 and the box 10 caused by the expansion of the air in the avoiding groove 201, an exhaust passage is arranged on the box 10 and is communicated with the avoiding groove 201.

Through set up on the installation department of box 10 and dodge the exhaust passage of groove 201 intercommunication for dodge the gas in groove 201 and can follow exhaust passage and discharge during the welding, avoided dodging the relative position of installation panel 20 and box 10 that the gas inflation in the groove 201 and lead to and slide, promoted the planarization and the stability of the connection of installation panel 20 and box 10.

In a possible embodiment, the air discharge passage is a gap between the coupling projection 22 and the coupling through-hole. For example, the sectional area of the coupling through-hole is larger than that of the coupling projection 22, thereby forming an exhaust passage between the coupling projection 22 and the coupling through-hole. On this basis, in order to facilitate the alignment between the mounting panel 20 and the connecting through hole when the mounting panel 20 is mounted, a positioning protrusion may be disposed on the inner wall of the connecting through hole, for example, a plurality of positioning protrusions distributed along the circumference may be disposed on the inner wall of the connecting through hole. Three or four positioning bulges which are uniformly distributed can be arranged on the inner wall of the connecting through hole along the circumference.

In another possible embodiment of the present disclosure, the exhaust passage is a pressure relief through hole on the case 10. The pressure relief through hole runs through the installation part, so that the space inside the avoiding groove 201 and the box body 10 is communicated, and air inside the avoiding groove 201 enters the box body 10 along the pressure relief through hole when being welded.

Wherein, the installation part of the box body 10 can be provided with one or more pressure relief through holes. When the installation part is provided with a plurality of pressure relief through holes, the pressure relief through holes are arranged along the circumferential direction of the connecting through holes. For example, the mounting portion may be provided with three pressure relief through holes, which are uniformly distributed along the circumference; or four pressure relief through holes are arranged on the mounting part and are uniformly distributed along the circumference.

The pressure release through-hole can locate the inside of installation department, has the interval between pressure release through-hole and the connect the through-hole promptly, and pressure release through-hole and connect the through-hole not communicate. Or the pressure relief through hole may also be formed in the side wall of the connection through hole, that is, the pressure relief through hole is communicated with the connection through hole, which is not specifically limited in the embodiment of the present disclosure.

The electrical connector 30 may be a high voltage connector for inputting and outputting high voltage signals or a low voltage connector for inputting and outputting low voltage signals. The electrical connector 30 may include a connector body connected to the board body 21 and connection terminals having one ends connected to the connector body and the other ends inserted into the connection protrusions 22. The connector body may be located inside the case 10, and an end of the connection terminal remote from the connector body extends to the outside of the case 10.

The battery box that this disclosed embodiment provided, install electrical connector 30 in box 10 through installation panel 20, the connection stability of electrical connector 30 has been increased, the risk of faults such as short circuit has been reduced to electrical connector 30, battery device's security has been promoted, and the installation panel 20 is close to one side of box 10 and has first district 211 and second district 212, second district 212 encircles connecting protrusion 22, one side that connecting protrusion 22 was kept away from to second district 212 is located to first district 211, second district 212 is provided with dodges groove 201, through dodging groove 201 and having avoided installation panel 20 and box 10 to interfere, further promotion electrical connector 30's connection stability.

The exemplary embodiment of the present disclosure also provides a battery device including the above battery case. Wherein, the battery box includes: the device comprises a box body 10, a mounting panel 20 and an electric connector 30, wherein the box body 10 is provided with a connecting through hole; the mounting panel 20 comprises a panel main body 21 and a connecting protrusion 22, wherein the connecting protrusion 22 is arranged on the panel main body 21, and the connecting protrusion 22 penetrates through the connecting through hole; the connector is mounted to the mounting panel 20; the side of the installation panel 20 close to the box body 10 is provided with a first area 211 and a second area 212, the second area 212 surrounds the connection protrusion 22, the first area 211 is arranged on the side of the second area 212 far away from the connection protrusion 22, the second area 212 is provided with an avoiding groove 201, and the first area 211 is connected with the side of the box body 10 facing the installation panel 20.

The battery device provided by the embodiment of the disclosure comprises a battery box body, the electrical connector 30 is installed in the box body 10 through the installation panel 20 in the battery box body, the connection stability of the electrical connector 30 is increased, the risk of short circuit and other faults of the electrical connector 30 is reduced, the safety of the battery device is improved, one surface of the installation panel 20 close to the box body 10 is provided with a first area 211 and a second area 212, the second area 212 surrounds the connecting protrusion 22, the first area 211 is arranged on one side, away from the connecting protrusion 22, of the second area 212, the second area 212 is provided with an avoiding groove 201, the interference between the installation panel 20 and the box body 10 is avoided through the avoiding groove 201, and the connection stability of the electrical connector 30 is further improved.

Furthermore, the battery device that this disclosed embodiment provided can also include battery and copper bar, is provided with at least one battery cabin in the battery box, is provided with one or more batteries in the battery cabin, and the copper bar is connected with the battery, and the copper bar is used for transmitting high-voltage signal. Of course, in practical applications, the copper bar may also be used to transmit a low voltage signal (e.g., a voltage signal or a temperature signal), and the embodiments of the present disclosure are not limited thereto.

Furthermore, the battery device can also comprise a bus bar assembly and a circuit board assembly, wherein the bus bar assembly is respectively connected with the battery and the copper bar, or the circuit board assembly is respectively connected with the battery and the copper bar. For example, the battery device is provided with a plurality of batteries, and the plurality of batteries are arranged in the box body 10 according to a preset arrangement mode. For example, a plurality of batteries may form at least one battery pack or battery module, and the battery pack or battery module is disposed in the case 10.

The bus bar assembly may include a plurality of bus bars that may connect the poles of the cells of adjacent cells. For example, the plurality of batteries may be connected in series, and in this case, the bus bar may be welded to a positive electrode post of the first battery and a negative electrode post of the second battery, respectively, where the first battery and the second battery are any two adjacent batteries.

The circuit board assembly can comprise a flexible circuit board and a signal acquisition part, wherein the flexible circuit board is provided with signal wiring, and the signal wiring is connected with the signal acquisition part. The signal acquisition part comprises a temperature sensor and a voltage sensor, the temperature sensor can be connected to the battery or the bus bar, and the voltage sensor is connected to the bus bar.

In one possible embodiment, the bus bar assembly and the circuit board assembly may be integrated together, for example, the bus bar assembly and the circuit board assembly are integrated into a wiring harness board assembly. The wire harness board assembly may include a first insulating layer and a second insulating layer between which the bus bar assembly and the wire harness board assembly are integrated.

In another possible embodiment, the bus bar assembly and the circuit board assembly may be separately provided, for example, the circuit board assembly is provided at a side portion of the bus bar assembly, and the signal collecting member in the circuit board assembly extends from the flexible circuit board to the bus bar.

In the embodiment of the present disclosure, the electrical connector 30 may be a high voltage connector, the high voltage connector is disposed on the box 10, and the high voltage connector is connected (directly or indirectly connected) with the bus bar assembly through the copper bar, and the output end of the high voltage connector penetrates through the box 10, so as to connect the battery with an external electrical device or a power supply.

It is understood that in the embodiment of the present disclosure, the electrical connector 30 may also be a low voltage connector, the low voltage connector is disposed on the box 10, and the low voltage connector is connected (directly or indirectly) to the circuit board assembly through a copper bar (or other wiring harness), and the output end of the low voltage connector passes through the box 10, so as to connect the circuit board assembly and the external control device.

The battery device provided by the embodiment of the disclosure comprises a battery box body, wherein the electrical connector 30 is installed in the box body 10 through the installation panel 20 in the battery box body, the connection stability of the electrical connector 30 is increased, the risk of short circuit and other faults of the electrical connector 30 is reduced, the safety of the battery device is improved, one surface of the installation panel 20 close to the box body 10 is provided with a first area 211 and a second area 212, the second area 212 surrounds the connection protrusion 22, the first area 211 is arranged on one side, away from the connection protrusion 22, of the second area 212, the second area 212 is provided with an avoiding groove 201, interference between the installation panel 20 and the box body 10 is avoided through the avoiding groove 201, and the connection stability of the electrical connector 30 is further improved.

The battery device provided by the embodiment of the disclosure can be applied to an electric vehicle, and the battery device is installed on the electric vehicle and provides energy for the electric vehicle. In practical applications, the battery device may be mounted to a frame of an electric vehicle. The battery device can be fixedly connected with the frame. Or the battery device can be a modular battery device which can be detachably connected to the vehicle body for convenient replacement.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (10)

1. A battery case, characterized in that, the battery case includes:

the box body is provided with a connecting through hole;

the mounting panel comprises a plate main body and a connecting bulge, the connecting bulge is arranged on the plate main body, and the connecting bulge penetrates through the connecting through hole;

an electrical connector mounted to the mounting panel;

wherein, the installation panel is close to the one side of box has first district and second district, the second district encircles connect protruding, the first district is located the second district is kept away from connect bellied one side, the second district is provided with and dodges the groove, the first district with the box orientation the one side of installation panel is connected.

2. The battery case of claim 1, wherein the first region of the mounting panel and the case are connected by welding.

3. The battery case of claim 1, wherein an end of the coupling projection remote from the plate main body is welded to the case.

4. The battery box body as claimed in claim 1, wherein the box body is provided with a pressure relief through hole, and the pressure relief through hole is communicated with the avoiding groove.

5. The battery box body as claimed in claim 4, wherein the box body is provided with a plurality of pressure relief through holes, and the plurality of pressure relief through holes are arranged along the circumferential direction of the connecting through hole.

6. The battery case of claim 1, wherein the case comprises:

the frame, be provided with on the frame connect the through-hole, the installation panel connect in the frame.

7. The battery box of claim 1, wherein the connection through-hole is provided with a chamfer toward an end of the mounting panel, and the avoidance groove is opposite to the chamfer.

8. The battery case of any one of claims 1 to 7, wherein the width of the avoidance groove is 2mm to 6mm.

9. A battery device, characterized in that the battery device comprises a battery case according to any one of claims 1 to 8.

10. The battery device of claim 9, wherein the battery device further comprises:

a copper bar connected with the electrical connector.

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