WO2023185694A1

WO2023185694A1 - Output pole base and battery module

Info

Publication number: WO2023185694A1
Application number: PCT/CN2023/083864
Authority: WO
Inventors: 舒云; 史彦军; 邓六军; 马姜浩; 张鹏
Original assignee: 江苏正力新能电池技术有限公司
Priority date: 2022-03-28
Filing date: 2023-03-24
Publication date: 2023-10-05
Also published as: CN217114689U

Abstract

The present application discloses an output pole base and a battery module, relating to the technical field of batteries. The output pole base comprises a base body and at least one cover plate. The base body is provided with a mounting cavity having an opening. The mounting cavity is used for mounting an output pole piece. The cover plate is detachably arranged on the base body around the circumferential edge of the opening. The cover plate and the base body jointly form an opening communicated with the mounting cavity, and the opening is used for inputting an output pole piece. The output pole base comprises a base body and at least one cover plate which can be detachably matched. When any one of the base body and the at least one cover plate is damaged due to vibration or other actions of the battery module, other elements can be disassembled to continue to be used, such that repeated utilization of other elements is not affected, so that the manufacturing, use and maintenance costs can be reduced. The battery module comprises the output pole base. Therefore, the battery module has the advantage of low costs.

Description

An output pole base and battery module

Cross-references to related applications

This application claims priority to the patent application submitted to the State Intellectual Property Office of China on March 28, 2022, with the application number 202220693821.8 and the invention title "An output pole base and battery module", the entire content of which is incorporated by reference. in this application.

Technical field

The present application relates to the field of battery technology, specifically, to an output pole base and a battery module.

Background technique

The battery of the battery module usually outputs current through the output pole piece. In order to protect the output pole piece, the battery module is usually equipped with an output pole base. The output pole base can fix and insulate the output pole piece. However, the existing output pole protection component is formed in one piece. When the vibration of the battery module causes the output pole base to be damaged, the output pole base is easily scrapped directly, resulting in high costs.

Application content

The purpose of this application is to provide an output pole base that is detachably assembled from a base body and at least one cover plate. When any one or more components of the base body and at least one cover plate are damaged due to vibration of the battery module, It does not affect the ability of other components to be disassembled and used again, thus reducing costs.

Another object of the present application is to provide a battery module including the above-mentioned output pole base. Therefore, the battery module also has the advantage of lower cost.

The embodiment of this application is implemented as follows:

In the first aspect, this application provides an output pole base, including:

The base body has an open installation cavity, and the installation cavity is used to install the output pole piece;

At least one cover plate is detachably provided on the base body around the circumferential edge of the opening, and together with the base body forms an opening communicating with the installation cavity, and the opening is used for input of the output pole piece.

In one embodiment, the output pole base includes a cover plate, and the cover plate is a top cover that covers the open top, and the top cover and the base body together form an opening;

or,

The output pole base includes a cover plate, and the cover plate is a side cover that covers the open side, and the side cover and the base body jointly form an opening;

or,

The output pole base includes two cover plates, one of the two cover plates is a top cover that covers the top of the open opening, and the other of the two cover plates is a side cover that covers the side of the open opening. The cover, top cover and base body together form an opening.

In one embodiment, when the cover is a top cover that covers the open top, one of the top cover and the base body is provided with a pivot shaft, and the other of the two is provided with a pivot slot. , the pivot shaft is pivoted to the pivot groove.

In one embodiment, the pivot groove includes two spaced apart groove sections, and the two groove sections are respectively opened on two opposite walls of the base body;

The pivot shaft includes two shaft sections, and the two shaft sections are respectively arranged on both sides of the top cover; the two shaft sections are pivotally connected to the two groove sections in one-to-one correspondence; or the pivot shaft is a long shaft section, with a long The two ends of the shaft section are pivotally connected to the two groove sections in one-to-one correspondence.

In one embodiment, one of the top cover and the base body is provided with a buckle, and the other of the two is provided with a buckle, and the buckle is snap-fitted with the buckle.

In one embodiment, buckles are provided on both sides of the top cover, and buckles are provided on both sides of the base body, and the plurality of buckles are buckled and matched with the plurality of grooves one by one.

In one embodiment, when the cover is a side cover that covers the open side, one of the side cover and the base body is provided with a rotating shaft, and the other of the two is provided with a rotating groove, The rotating shaft is plugged into the rotating groove and rotates together.

In one embodiment, the side cover is provided with a rotating shaft, and the rotating shaft includes two shaft bodies respectively provided on both sides of the side cover;

The rotating shaft includes grooves respectively opened on two opposite walls of the base body. The two shafts are plugged into and rotated with the two grooves in one-to-one correspondence; or the rotating shaft is a long shaft. The two ends of the shaft body are plugged into and rotated with the two groove bodies in one-to-one correspondence.

In one embodiment, one end of the side cover adjacent to the top cover is provided with a rotating shaft, and one end of the side cover away from the top cover is provided with a first fitting portion; or, one end of the side cover away from the top cover is provided with a rotating shaft, and the side cover is provided with a rotating shaft close to the top cover. One end of the cover is provided with a first fitting part;

The base body is provided with a second fitting part at a position corresponding to the first fitting part; the first fitting part and the second fitting part are plug-fitted, and one of the first fitting part and the second fitting part is a protrusion. The other of the two is the groove.

In one embodiment, when the cover is a side cover that covers the open side, one of the side cover and the base body is provided with a chute, and the other of the two is in sliding fit with the chute. .

In one embodiment, the output pole base further includes a toggle piece, and the toggle piece is protruding from the side cover.

In one embodiment, the toggle member is located on the side of the side cover close to the installation cavity. The base body also has an accommodation cavity. The toggle member is plugged into the accommodation cavity, and the end surface of the toggle member extends from the opening of the accommodation cavity. exposed.

In one embodiment, one of the cavity wall and the toggle member of the accommodation cavity is provided with a protrusion, and the other of the two is provided with a groove, and the protrusion is inserted into the groove.

In one embodiment, when the cover is a side cover that covers the open side, one of the side cover and the output pole base is provided with a fastening groove, and one of the two is provided with a fastening piece, The fastening part is fastened and matched with the fastening groove.

In one embodiment, fastening parts are provided on both sides of the side cover, fastening grooves are provided on both sides of the base body, and the plurality of fastening parts are buckled and matched with the plurality of fastening grooves one by one.

In one embodiment, when the cover is a top cover that covers the open top, the base body has a first accommodation groove adjacent to the top cover, and the top cover is accommodated in the first accommodation groove, and the top cover is The outer surface of the cover is flush with the outer surface of the base body;

and / or,

When the cover is a side cover that covers the open side, the base body has a second accommodating groove adjacent to the side cover, the side cover is accommodated in the second accommodating groove, and the outer surface of the side cover is in contact with the side cover. The outer surface of the base body is flush.

In one embodiment, the base body has a through hole opposite to the opening, the through hole is connected to the installation cavity, and the through hole is used for connecting the output pole piece to external components.

In a second aspect, this application provides a battery module, including:

The housing and the output pole base of any one of the aforementioned embodiments, the output pole base and the housing are detachably matched.

In one embodiment, the housing is provided with a recessed cavity, one of the cavity wall of the recessed cavity and the base body is provided with a track, and the other of the two is provided with a fitting groove, and the track is in sliding fit with the fitting groove.

In one embodiment, the fitting groove has a notch, and an elastic limiter is connected to the track. The track is used to slide with the fit groove in a preset direction, and when the track is matched with the fit groove, the elastic limiter is exposed from the notch. , and abuts against the wall at the notch of the housing to prevent the base body from moving in the opposite direction in the preset direction.

In one embodiment, the fitting groove has a groove bottom located downstream in the preset direction, and the groove bottom abuts and cooperates with the track to prevent the base body from continuing to move in the preset direction.

In one embodiment, the battery module includes a plurality of battery cells disposed in a casing. The casing includes an end plate located at one end in the stacking direction of the plurality of battery cells, and a recessed cavity is opened in the end plate.

The embodiments of the present application include at least the following advantages or beneficial effects:

Embodiments of the present application provide an output pole base, which includes a base body and at least one cover plate; the base body is provided with an open installation cavity, and the installation cavity is used to install the output pole piece; the cover plate surrounds the open opening The circumferential edge is detachably provided on the base body, and together with the base body forms an opening communicating with the installation cavity, and the opening is used for input of the output pole piece. Should The output pole base includes a removable base body and at least one cover plate. When any one of the base body and at least one cover plate is damaged due to vibration or other effects of the battery module, the other components can be disassembled and continued to be used. It does not affect the reuse of other components, thus reducing manufacturing, use and maintenance costs.

An embodiment of the present application also provides a battery module, which includes the above-mentioned output pole base. Therefore, the battery module also has the advantage of lower cost.

Description of drawings

In order to explain the embodiments of the present application or the technical solutions of the prior art more clearly, the following will briefly introduce the drawings needed to describe the embodiments or the prior art. It should be understood that the following drawings only illustrate the present invention. Certain embodiments of the application should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a partial structural schematic diagram of a battery module provided by an embodiment of the present application;

Figure 2 is a schematic diagram 2 of the partial structure of a battery module provided by an embodiment of the present application;

Figure 3 is a schematic structural diagram of an end plate of a battery module provided by an embodiment of the present application;

Figure 4 is a schematic structural diagram of the first output pole base provided by the embodiment of the present application;

Figure 5 is a schematic structural diagram 2 of the first output pole base provided by the embodiment of the present application;

Figure 6 is a schematic structural diagram of the base body of the first output pole base provided by the embodiment of the present application;

Figure 7 is a schematic structural diagram of the top cover of the first output pole base provided by the embodiment of the present application;

Figure 8 is a schematic structural diagram of the side cover of the first output pole base provided by the embodiment of the present application;

Figure 9 is a schematic structural diagram of a second output pole base provided by an embodiment of the present application;

Figure 10 is a partial structural schematic diagram of the second output pole base provided by the embodiment of the present application;

Figure 11 is a schematic structural diagram of the side cover of the second output pole base provided by the embodiment of the present application;

Figure 12 is a schematic structural diagram of the third output pole base provided by the embodiment of the present application;

Figure 13 is a schematic structural diagram of the base body of the third output pole base provided by the embodiment of the present application;

Figure 14 is a schematic structural diagram of the side cover of the third output pole base provided by the embodiment of the present application;

Figure 15 is a schematic structural diagram of the fourth output pole base provided by the embodiment of the present application;

Figure 16 is a schematic structural diagram of the base body of the fourth output pole base provided by the embodiment of the present application;

Figure 17 is a schematic structural diagram of the side cover of the fourth output pole base provided by the embodiment of the present application;

Figure 18 is a second structural schematic diagram of the side cover of the fourth output pole base provided by the embodiment of the present application.

Icon: 100-output pole base; 101-base body; 102-installation cavity; 103-opening; 105-opening; 107-through Hole; 109-top cover; 111-side cover; 113-pivot shaft; 115-shaft section; 117-pivot groove; 119-groove section; 121-buckle; 123-slot; 125-rotating shaft; 127 -Shaft body; 129-rotating groove; 131-trough body; 133-protrusion; 135-groove; 137-sliding groove; 139-step groove; 141-step buckle; 143-toggle piece; 145-accommodation cavity ; 147-recessed portion; 151-fastening groove; 153-fastening part; 155-second accommodation groove; 157-first escape groove; 159-second escape groove; 201-end plate; 203-recessed cavity; 205-track; 207-elastic connector; 209-fitting groove; 211-notch; 213-groove bottom; 215-depressed groove.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments These are part of the embodiments of this application, but not all of them. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

It should be noted that similar reference numerals and letters represent similar items in the following figures, therefore, once an item is defined in one figure, it does not need further definition and explanation in subsequent figures.

In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship where the product of this application is commonly placed when used. It is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply. The devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the application. In addition, the terms "first", "second", "third", etc. are only used to distinguish descriptions and shall not be understood as indicating or implying relative importance.

In addition, the terms "horizontal", "vertical", etc. do not mean that the component is required to be absolutely horizontal or suspended, but may be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical". It does not mean that the structure must be completely horizontal, but can be slightly tilted.

In the description of this application, it should also be noted that, unless otherwise clearly stated and limited, the terms "setting", "installation", "connecting" and "connecting" should be understood in a broad sense. For example, it can be a fixed connection, It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood on a case-by-case basis.

In related technology, the battery of the battery module usually outputs current through the output pole piece. In order to protect the output pole piece, the battery module is usually equipped with an output pole base. The output pole base can fix and insulate the output pole piece. Protect. However, the existing output pole protection components are integrated. When the vibration of the battery module causes damage to the output pole base, the output pole bottom The seat is easy to be scrapped directly, and the cost is high.

In view of this, this embodiment provides a battery module whose output pole base is detachably assembled from a base body and at least one cover plate. The base body and at least one cover plate caused by vibration of the battery module When any one or more components are damaged, it will not affect the ability of other components to be disassembled and continued to be used, thus reducing costs. The structure of the battery module is introduced in detail below.

Figure 1 is a partial structural diagram of the battery module provided in this embodiment; Figure 2 is a partial structural diagram of the battery module provided in this embodiment; Figure 3 is a diagram of the end plate 201 of the battery module provided in this embodiment. Structural schematic diagram; Figure 4 is a schematic structural diagram 1 of the first output pole base 100 provided in this embodiment; Figure 5 is a schematic structural diagram 2 of the first output pole base 100 provided in this embodiment. Referring to FIGS. 1 to 5 , this embodiment provides a battery module, which includes a casing and a plurality of battery cells arranged side by side in the casing. The housing includes two end plates 201 shown in Figures 1 to 3, two side plates (not shown), a top plate (not shown) and a bottom plate (not shown). The two end plates 201 are opposite and spaced apart, and the two side plates are opposite and spaced apart between the two end plates 201. The two end plates 201 and the two side plates together surround a rectangular parallelepiped structure, and multiple battery cores are arranged side by side in the rectangular parallelepiped structure. inside, the arrangement direction of the battery cores is the same as the extension direction of the side plates, and the length direction of the battery cores is the same as the extension direction of the end plate 201 . The top plate and the bottom plate are respectively arranged at both ends of the rectangular parallelepiped structure to ensure the safety of the battery core.

At the same time, please refer to Figures 1 to 3 again. In this embodiment, multiple battery cells are connected with output pole pieces, and the end plate 201 is detachably provided with an output pole base 100. The output pole base 100 is used to install the output Extremely thin film to ensure that the battery module can perform normal charging and discharging operations. The detachable combination of the output pole base 100 and the end plate 201 can improve the installation and removal efficiency of the output pole base 100. At the same time, the output pole base 100 and the end plate 201 are detachably matched. When the output pole base 100 is damaged, you only need to remove the output pole base 100 without replacing the end plate 201 or the shell, which can reduce costs. Of course, in other embodiments, the output pole base 100 can also be detachably matched with the side plate or other parts of the housing, which will not be described again in this embodiment.

In detail, in this embodiment, the output pole base 100 includes a base body 101 and at least one cover plate. The end plate 201 is provided with a recessed cavity 203 extending along the height direction of the battery core. One of the cavity side walls of the recessed cavity 203 and the output pole base 100 is provided with a track 205, and the other of the two is provided with a track 205. The fitting groove 209 and the track 205 are in sliding fit with the fitting groove 209 . For example, in this embodiment, one matching groove 209 is provided on two opposite cavity walls of the recessed cavity 203, and one rail 205 is provided on both sides of the output pole base 100. The two rails 205 and the two matching grooves 209 Sliding fit in one-to-one correspondence. Through the arrangement of the track 205 and the matching groove 209, the output pole base 100 can be easily installed and disassembled, and the installation and disassembly efficiency can be improved. At the same time, the number of rails 205 and matching slots 209 is two, which can fully ensure the stability of the output pole base 100, thereby ensuring the stability and reliability of the output pole piece, and thus ensuring the smooth operation of the battery module charging and discharging operations. Stability, security and reliability.

It should be noted that in this embodiment, the fitting groove 209 has a notch 211, and the rail 205 is connected with an elastic limiter. The positioning member, the elastic limiting member and the track 205 can be integrally formed, and the thickness of the elastic limiting member can be reduced to ensure that it has a certain elasticity. The track 205 is used to slide with the mating groove 209 in a preset direction (also the direction close to the battery core). When the track 205 is mated with the mating groove 209, the elastic limiter is exposed from the notch 211 and is in contact with the notch of the housing. The wall at 211 is in contact to prevent the base body 101 from moving in the opposite direction of the preset direction (also the direction away from the battery core). Through the arrangement of the elastic limiters, the stability of the output pole base 100 after being installed on the end plate 201 can be further improved, ensuring the stability and reliability of the output pole plate. Of course, in other embodiments, the elastic limiter can also be directly set as an elastic structure such as an elastic piece or a spring, and the matching direction of the track 205 and the matching groove 209 can also be adjusted according to needs, which is not limited in this embodiment. .

It should also be noted that the mating groove 209 has a groove bottom 213 located downstream in the preset direction (that is, at a position where the mating groove 209 is close to the battery core). The groove bottom 213 abuts and cooperates with the rail 205 to prevent the base body 101 from continuing. Movement in a preset direction. The setting of the groove bottom 213 can cooperate with the elastic limiter to stabilize the output pole base 100 in the direction of movement, further improving the stability and reliability of the output pole base 100 and ensuring the stability and safety of the output pole plate. , to ensure the operating efficiency and quality of battery modules.

FIG. 6 is a schematic structural diagram of the base body 101 of the first output pole base 100 provided in this embodiment. Please refer to Figures 4 to 6. In this embodiment, the base body 101 is provided with an installation cavity 102 with an opening 103. The installation cavity 102 is used to install the output pole piece. The output pole piece can be connected with the cavity of the installation cavity 102. The bottom is fastened with fasteners, so that the installation cavity 102 can realize the stability and insulation protection of the output pole piece. At the same time, at least one cover plate is detachably provided on the base body 101 around the circumferential edge of the opening 103, and together with the base body 101, forms an opening 105 communicating with the installation cavity 102. The opening 105 is used for input of the output pole piece.

Through the arrangement of at least one cover, the safety and stability of the output pole piece in the installation cavity 102 can be protected. Moreover, when any one of the base body 101 and at least one cover is damaged due to vibration or other effects of the battery module, the other components can be disassembled and continued to be used without affecting the reuse of other components, thereby reducing manufacturing and Use and maintenance costs.

In detail, please refer to FIG. 4 and FIG. 5 again. In this embodiment, the output pole base 100 specifically includes two cover plates. The two covers are the top cover 109 and the side cover 111 respectively. Among them, the top cover 109 covers the top of the opening 103 and is opposite to the bottom of the installation cavity 102. The side plates cover the sides of the opening 103. The side covers 111, the top cover 109 and the base body 101 together form the opening 105. , for output pole input. At the same time, the base body 101 has a through hole 107 opposite to the opening 105. The through hole 107 is connected to the installation cavity 102, and the through hole 107 is used to connect the output pole piece to external components to facilitate the stability of the battery module charging and discharging operations. performance, reliability and security. Of course, in other embodiments, only the top cover 109 or only the side covers 111 may be included. When only the top cover 109 is included, the top cover 109 and the base body 101 jointly form the opening 105. When only the side covers 111 are included, The side cover 111 and the base body 101 together form the opening 105, which will not be described again in this embodiment.

FIG. 7 is a schematic structural diagram of the top cover 109 of the first output pole base 100 provided in this embodiment. Referring to FIGS. 4 to 7 , this embodiment provides four structures of the output pole base 100 . In the first output pole base 100 , one of the top cover 109 and the base body 101 is provided with a pivot. The other of the two connecting shafts 113 is provided with a pivoting slot 117, and the pivoting shaft 113 is pivotally connected to the pivoting slot 117. For example, as shown in Figure 7, the end of the top cover 109 is provided with a pivot shaft 113, and the base body 101 is provided with a pivot slot 117 at a corresponding position. The pivot shaft 113 is pivotally connected to the pivot slot 117, so that the output After the pole piece extends into the installation cavity 102 from the opening 105 and is tightened, the pivot shaft 113 can be pivotally connected to the pivot groove 117, and the top cover 109 can be rotated to cover the top of the installation cavity 102 of the base body 101. .

It should be noted that in this embodiment, the pivot shaft 113 is located at the end of the top cover 109 away from the battery core, and the pivot slot 117 is opened at the end of the base body 101 away from the battery core to connect with the pivot shaft 113 . Corresponds to axis 113. In other embodiments, the pivot shaft 113 can also be disposed in the middle of the top cover 109 , and the pivot slot 117 can also be opened at a corresponding position on the base body 101 to ensure that the pivot shaft 113 can be stably connected to the pivot slot 117 . Yes, there is no limitation in this embodiment.

Specifically, in this embodiment, the pivot groove 117 includes two spaced apart groove sections 119 , and the two groove sections 119 are respectively opened on two opposite walls of the base body 101 . The pivot shaft 113 includes two shaft sections 115. Each shaft section 115 has a cylindrical block structure. The two shaft sections 115 are respectively arranged on both sides of the top cover 109. An avoidance output pole is formed between the two shaft sections 115. The first escape groove 157 of the plate is formed to reduce the impact on the output pole plate in the installation cavity 102. The two shaft segments 115 and the two groove segments 119 are pivotally connected in a one-to-one correspondence to fully ensure the stability and reliability of the top cover 109 when rotating relative to the base body 101 and to ensure the stability and safety of the output pole piece. Of course, in other embodiments, the pivot shaft 113 can also be configured as a long shaft segment 115 structure, such as a long rod-shaped structure, so that both ends of the long shaft segment 115 are connected to the two groove segments 119 one by one. The corresponding pivot connection will not be described again in this embodiment.

As an optional solution, in order to further improve the stability after the top cover 109 is matched with the base body 101, in this embodiment, one of the top cover 109 and the base body 101 is provided with a buckle 121, and both of them are provided with a buckle 121. The other one is provided with a card slot 123, and the buckle 121 is engaged with the card slot 123. For example, as shown in FIG. 7 , a buckle 121 is provided on both sides of the top cover 109 . The buckle 121 is located roughly in the middle of the width direction of the top cover 109 . The buckle 121 has a hook and is roughly in the shape of a "7". , the base body 101 has a slot 123 on the two walls of the slot section 119 respectively. When installing the top cover 109, the pivot shaft 113 can be plugged into the pivot slot 117 first, and then the top cover 109 can be driven to face each other. The base body 101 is rotated so that the two buckles 121 and the two buckle slots 123 are locked in one-to-one correspondence.

On the one hand, through the cooperation of the buckle 121 and the slot 123, the top cover 109 can be further stabilized, and the stability of the top cover 109 after being installed on the base body 101 can be fully improved, thereby improving the stability and reliability of the output pole plate. performance and safety; on the other hand, the number of buckles 121 and slots 123 is two, so that both sides of the top cover 109 can be effectively fastened, which can reduce the probability of damage during vibration and ensure that the output pole The safety of the base 100 can also ensure the use of the output pole base 100 lifespan and cost reduction. Of course, in other embodiments, the number of buckles 121 and slots 123 can be increased or decreased according to needs, as long as the stability and reliability of the top cover 109 after being installed on the base body 101 are ensured. This embodiment does not Make limitations.

FIG. 8 is a schematic structural diagram of the side cover 111 of the first output pole base 100 provided in this embodiment. Please refer to Figures 4 to 8. In the first type of output pole base 100, one of the side cover 111 and the output pole base 100 is provided with a fastening groove 151, and one of the two is provided with a fastening piece 153. The fastening component 153 is fastened and matched with the fastening groove 151 . For example, as shown in FIG. 8 , fasteners 153 are provided on both sides of the side cover 111 . The fasteners 153 have the same shape as the buckles 121 and are located approximately in the middle of the width direction of the side cover 111 . The fasteners 153 It also has a hook part, which is roughly in the shape of a "7". The two walls of the base body 101 with the slot 123 are respectively provided with a buckle groove 151, two buckle parts 153 and two buckle grooves 151. Snap and fit in one-to-one correspondence.

On the one hand, through the cooperation between the fastening part 153 and the fastening groove 151, the stability of the side cover 111 after being installed on the base body 101 can be ensured, so as to further improve the stability, reliability and safety of the output pole piece; On the other hand, the number of fastening parts 153 and fastening grooves 151 is two, so that both sides of the side cover 111 can be effectively fastened, which can reduce the probability of damage during vibration and ensure the stability of the output pole base 100 Safety, thus ensuring the service life of the output pole base 100 and reducing costs. Of course, in other embodiments, the number of fastening parts 153 and fastening grooves 151 can be increased or reduced according to needs, as long as the stability and reliability of the side cover 111 after being installed on the base body 101 are ensured. In this implementation Examples are not limited.

Please refer to FIG. 4 again. In this embodiment, a second accommodating groove 155 is opened in the circumference of the base body 101 adjacent to the side cover 111. The side cover 111 is accommodated in the second accommodating groove 155, and the side cover The outer surface of 111 is flush with the outer surface of the base body 101 . By setting it in this way, the side cover 111 does not protrude from the outer surface of the base body 101 after being matched with the base body 101 , which can ensure the aesthetics of the output pole base 100 , can also reduce the scratching of the side cover 111 , and ensure that the side cover 111 security to reduce maintenance costs. Of course, the base body 101 can also have a first receiving groove adjacent to the top cover 109, so that the top cover 109 can also be accommodated in the first receiving groove, so that the outer surface of the top cover 109 is in contact with the outer surface of the base body 101. The surface is flush and will not be described again in this embodiment.

Figure 9 is a schematic structural diagram of the second output pole base 100 provided by this embodiment; Figure 10 is a partial structural schematic diagram of the second output pole base 100 provided by this embodiment; Figure 11 is a second type of output pole base 100 provided by this embodiment. Structural diagram of the side cover 111 of the output pole base 100. Please refer to Figures 9 to 10. In the structure of the second output pole base 100, the connection method between the top cover 109 and the base body 101 is the same as that of the first output pole base 100, but the side cover 111 and the base body 101 can be connected. The disassembly and connection method is rotational connection.

In detail, in the second structure of the output pole base 100, one of the side cover 111 and the base body 101 is provided with a rotating shaft 125, and the other of the two is provided with a rotating groove 129. The rotating shaft 125 and The rotating groove 129 is inserted and rotated to fit. example For example, as shown in Figure 11, the end of the side cover 111 is provided with a rotation shaft 125. The rotation shaft 125 has a cylindrical structure. The base body 101 has a rotation slot 129 at a corresponding position on the side close to the battery core. The rotation slot 129 Curved structure. Through the cooperation between the rotating shaft 125 and the rotating groove 129, when the side cover 111 is installed, the rotating shaft 125 can be plugged into the rotating groove 129 first, and then the side cover 111 can be driven to rotate relative to the base body 101 until it is accommodated in the second volume. It can be placed in the cavity 145.

In more detail, in this embodiment, the side cover 111 is provided with a rotation shaft 125. The rotation shaft 125 includes two shaft bodies 127 respectively provided on both sides of the side cover 111. The shape of the shaft body 127 is similar to the shape of the shaft segment 115. , all have a cylindrical block structure, the shafts 127 are arranged at intervals, and a second avoidance groove 159 is formed between them to avoid the output pole piece, so as to ensure the stability and reliability of the output pole piece after installation. Correspondingly, the rotating shaft 125 includes grooves 131 respectively opened on two opposite walls of the base body 101. The two shafts 127 and the two grooves 131 are plugged in and rotated in a one-to-one correspondence. Through the cooperation of the two groove bodies 131 and the two shaft bodies 127, the stability and reliability of the cooperation between the side cover 111 and the base body 101 can be further improved, thereby ensuring the stability and reliability of the entire output pole base 100. This can ensure the stability and reliability of the battery module's charging and discharging operations. Of course, in other embodiments, the rotating shaft 125 can also be configured as a long shaft 127, for example, a cylindrical rod-shaped structure, so that both ends of the long shaft 127 are inserted into the two grooves 131 in a one-to-one correspondence. They are connected and rotated to fit, which will not be described again in this embodiment.

As an optional solution, in this embodiment, the rotation shaft 125 is provided at a position of the side cover 111 adjacent to the top cover 109 , and the rotation slot 129 is opened at a corresponding position of the base body 101 . At the same time, the side cover 111 is provided with a first fitting part at one end away from the top cover 109, and the base body 101 is provided with a second fitting part at a position corresponding to the first fitting part, and the first fitting part and the second fitting part are plug-fitted. And one of the first fitting part and the second fitting part is a protrusion 133, and the other one of the two fitting parts is a groove 135. For example, the first fitting part is the groove 135, and the second fitting part is the protrusion 133. With this arrangement, when the side cover 111 is installed, the rotating shaft 125 can be plugged into the rotating groove 129 first, and then the side cover 111 can be driven to rotate relative to the base body 101 until it is accommodated in the second accommodating cavity 145 and makes the protrusion 133 can be plugged into the groove 135.

FIG. 12 is a schematic structural diagram of the third output pole base 100 provided in this embodiment; FIG. 13 is a schematic structural diagram of the base body 101 of the third output pole base 100 provided in this embodiment.

FIG. 14 is a schematic structural diagram of the side cover 111 of the third output pole base 100 provided in this embodiment. Referring to Figures 12 to 14, in the structure of the third output pole base 100, the connection method between the top cover 109 and the base body 101 is the same as that of the first and second output pole bases 100 and 100, but the side The detachable connection method between the cover 111 and the base body 101 is somewhat different from that of the second output pole base 100 .

In detail, in the third structure of the output pole base 100, the end of the side cover 111 away from the top cover 109 is provided with a rotating shaft 125. The rotating shaft 125 has a cylindrical rod-shaped structure, and a rotating groove 129 is provided at the corresponding position of the base body 101. The rotating shaft 125 rotates with the rotating groove 129 . Of course, the rotating shaft 125 can also be set as two shafts in the second output pole base 100 Body 127 structure, the rotation groove 129 is configured as two groove body 131 structures, so as to rotate in one-to-one correspondence, which is not limited in this embodiment. At the same time, in the third structure of the output pole base 100, a first fitting part is provided at one end of the side cover 111 close to the top cover 109. The first fitting part is a groove 135, and a protrusion 133 is provided at the corresponding position of the base body 101. The protrusion 133 is plug-fitted into the groove 135 . With this arrangement, when the side cover 111 is installed, the rotating shaft 125 can be plugged into the rotating groove 129 first, and then the side cover 111 can be driven to rotate relative to the base body 101 until it is accommodated in the second accommodation cavity 145, and the protruding Lift 133 can be plugged into groove 135.

It should be noted that, no matter it is the second structure of the output pole base 100 or the third structure of the output pole base 100, in this embodiment, the number of the protrusions 133 is two, and two of them are respectively provided on the base body 101. On the opposite wall, the number of grooves 135 is also two, which are respectively opened on the two sides of the end cover. This allows the two protrusions 133 and the two grooves 135 to be plugged and matched one by one, thereby fully ensuring the stability and reliability of the side cover 111 and the base body 101 after being matched, which is not limited in this embodiment.

FIG. 15 is a schematic structural diagram of the fourth output pole base 100 provided in this embodiment; FIG. 16 is a schematic structural diagram of the base body 101 of the fourth output pole base 100 provided in this embodiment.

FIG. 17 is a schematic structural diagram 1 of the side cover 111 of the fourth output pole base 100 provided in this embodiment.

FIG. 18 is a second structural schematic diagram of the side cover 111 of the fourth output pole base 100 provided in this embodiment. Please refer to Figures 15 to 18. In the fourth structure of the output pole base 100, the connection method between the top cover 109 and the base body 101 is the same as that of the first three output pole bases 100, but the side cover 111 and the base body 101 can be connected. The detachable connection method is somewhat different from the first three output pole bases 100. The detachable connection method between the side cover 111 and the base body 101 is a sliding fit.

In detail, in the fourth output pole base 100 , one of the side cover 111 and the base body 101 is provided with a chute 137 , and the other of the two is slidably matched with the chute 137 . For example, the base body 101 has a chute 137 at the bottom of the installation cavity 102, and the lower end of the side cover 111 can be directly slidably disposed in the chute 137, thereby facilitating the installation and removal of the side cover 111.

As an optional solution, in this embodiment, the output pole base 100 also includes a toggle member 143. The toggle member 143 is protruding from the side cover 111 to facilitate the user to toggle it and operate the end cover more conveniently for further processing. Ensure the efficiency of installation and disassembly.

Further optionally, please refer to Figure 17 again. In this embodiment, the toggle member 143 is located on the side of the side cover 111 close to the installation cavity 102. The base body 101 also has a receiving cavity 145. The toggle member 143 is connected to the receiving cavity 145. The cavity 145 is plugged in, and the end face of the toggle member 143 is exposed from the mouth of the accommodation cavity 145 . On the one hand, locating the toggle part 143 on the side of the side cover 111 close to the installation cavity 102 can prevent the toggle part 143 from being exposed, reduce the chance of damage to the toggle part 143, and save maintenance and repair costs; on the other hand, the toggle part 143 can be prevented from being exposed. The end face of the component 143 can be exposed from the mouth of the accommodation cavity 145, which facilitates the user to operate the toggle component 143 to improve the efficiency and quality of the cooperation between the end cover and the base body 101; at the same time, since the toggle component 143 is inserted into the accommodation cavity 145 Therefore, the circumferential direction of the toggle member 143 can be protected by the accommodation cavity 145, which can extend its service life and further control costs.

It should be noted that in this embodiment, the wall of the base body 101 where the accommodating cavity 145 is provided is also provided with an arc-shaped recess 147 connected to the accommodating cavity 145 so that the user can reach in to push the toggle member. 143 movement to further improve the installation and removal efficiency of the side cover 111.

Please refer to Figure 18 again. In this embodiment, a step groove 139 is provided in the circumferential direction of the side of the end cover away from the toggle member 143, and a step buckle 141 is provided on one side of the base body 101 around the axis of the accommodating cavity 145. The step buckle 141 also has a hook part. When the side cover 111 and the slide groove 137 are slidably matched in place, the hook portion of the step buckle 141 can be connected to the groove surface of the step groove 139 to fully ensure the stability and reliability of the end cover after being installed on the base body 101 .

As an optional solution, in the fourth output pole base 100, a protrusion 133 and a groove 135 are also provided between the side cover 111 and the base body 101. For example, the cavity wall of the accommodation cavity 145 and the dial can be One of the two parts 143 is provided with a protrusion 133, and the other of the two parts is provided with a groove 135, so that the protrusion 133 and the groove 135 are plug-fitted. With this arrangement, when the side cover 111 is mated with the base, the side cover 111 can be inserted into the chute 137 first, and then the chute 137 is pushed into place, so that the toggle member 143 is inserted into the accommodation cavity 145, and the protrusion 133 It can be plugged into groove 135.

It should be noted that in this embodiment, among the four structures of the output pole base 100, the detachable connection method between the top cover 109 and the base body 101, and the detachable connection method between the side cover 111 and the base body 101 are They can be replaced with each other or used in combination with each other, as long as the stability of the top cover 109 and the base body 101 can be ensured, and the stability of the side cover 111 and the base body 101 can be ensured, so no further details will be given.

It should also be noted that no matter which structure of the four output pole bases 100 is adopted, a recessed groove 215 can be provided on the base body 101 of the output pole base 100. The recessed groove 215 can be provided to facilitate the user to insert his hand or The tool drives the output pole base 100 to move, which can improve the convenience and reliability of installation and removal of the output pole base 100, thereby further improving the installation and removal efficiency.

Taking the structure of the first output pole base 100 as an example, the installation process, working principle and beneficial effects of the battery module provided by the embodiment of the present application are introduced in detail below:

When installing the battery module, you can first assemble the end plate 201, the side plates and the bottom plate into a rectangular parallelepiped structure, then place multiple cells in the rectangular parallelepiped structure, and install the output pole base 100 on the end plate. 201. Install the output pole piece in the installation cavity 102, and finally match the top plate with the rectangular parallelepiped structure. When installing the output pole base 100, you can first mate the base body 101 with the recessed cavity 203, plug the track 205 of the base body 101 into the mating groove 209, and push the base body 101 to move in the direction close to the battery core. Make the base track 205 contact the bottom 213 of the mating groove 209, so that the elastic connector 207 passes through the gap 211 and contacts the wall of the end plate 201; then, extend the output pole piece into the installation cavity 102 through the opening 105, And installed in the installation cavity 102 through fasteners; finally, fasten the side cover 111 and the fastening piece 153 with the fastening groove 151 on the base body 101, and connect the pivot shaft 113 of the top cover 109 with the base body 101 The pivot groove 117 is pivoted and drives the top The cover 109 is rotated relative to the base body 101 until the buckles 121 and buckles 121 are engaged. After assembly is completed, the battery module can be connected to other battery modules or directly connected to other electrical equipment.

In the above process, on the one hand, the output pole base 100 and the end plate 201 are slidingly matched, which can facilitate the disassembly and installation of the output pole base 100, improve the installation and disassembly efficiency, and also facilitate the replacement of the output pole base 100 when it is damaged. The new output pole base 100 reduces the cost of the end plate 201; on the other hand, the output pole base 100 includes a removable base body 101, a top cover 109 and a side cover 111. When the base body 101, the top cover 109 and the When any one of the side covers 111 is damaged due to vibration or other effects of the battery module, the other components can be disassembled and continued to be used without affecting the reuse of other components, thereby reducing manufacturing, use and maintenance costs.

To sum up, embodiments of the present application provide an output pole base 100 and battery module with low cost and high installation and removal efficiency.

The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included in the protection scope of this application.

Claims

An output pole base is characterized by including:

The base body is provided with an open installation cavity, and the installation cavity is used to install the output pole piece;

At least one cover plate is detachably provided on the base body around the circumferential edge of the opening, and together with the base body forms an opening communicating with the installation cavity, the opening being used for the output Jiba piece input.
The output pole base according to claim 1, characterized in that:

The output pole base includes one cover plate, and the cover plate is a top cover that covers the top of the open opening, and the top cover and the base body jointly form the opening;

or,

The output pole base includes one cover plate, and the cover plate is a side cover that covers the open side, and the side cover and the base body jointly form the opening;

or,

The output pole base includes two cover plates, one of the two cover plates is a top cover that covers the top of the opening, and the other of the two cover plates is a top cover that covers the top of the opening. The side covers on the side of the opening, the side covers, the top cover and the base body jointly form the opening.
The output pole base according to claim 2, characterized in that:

When the cover is a top cover disposed on the open top, one of the top cover and the base body is provided with a pivot shaft, and the other of the two is provided with a pivot shaft. The pivot shaft is pivotally connected to the pivot groove.
The output pole base according to claim 3, characterized in that:

The pivot groove includes two spaced groove sections, and the two groove sections are respectively opened on two opposite walls of the base body;

The pivot shaft includes two shaft sections, and the two shaft sections are respectively arranged on both sides of the top cover; the two shaft sections are pivotally connected to the two groove sections in a one-to-one correspondence; or, The pivot shaft is a long shaft section, and both ends of the long shaft section are pivotally connected to the two groove sections in one-to-one correspondence.
The output pole base according to claim 2, characterized in that:

One of the top cover and the base body is provided with a buckle, and the other of the two is provided with a buckle, and the buckle is snap-fitted with the buckle.
The output pole base according to claim 5, characterized in that:

The buckles are provided on both sides of the top cover, and the buckles are provided on both sides of the base body correspondingly. A plurality of the buckles are buckled and matched with a plurality of the grooves one by one. .
The output pole base according to any one of claims 2 to 6, characterized in that,

When the cover is a side cover that covers the open side, one of the side cover and the base body is provided with a rotating shaft, and the other of the side cover and the base body is provided with a rotating shaft. slot, and the rotating shaft is inserted into and rotated with the rotating slot.
The output pole base according to claim 7, characterized in that:

The side cover is provided with the rotation shaft, and the rotation shaft includes two shaft bodies respectively provided on both sides of the side cover;

The rotation shaft includes grooves respectively opened on two opposite walls of the base body, and the two shafts are plugged into and rotate with the two grooves in one-to-one correspondence; or, the The rotating shaft is a long shaft body, and the two ends of the long shaft body are plugged in and rotated with the two groove bodies in one-to-one correspondence.
The output pole base according to claim 7, characterized in that:

The side cover is provided with the rotation shaft at one end adjacent to the top cover, and the first fitting portion is provided at one end of the side cover away from the top cover; or, the side cover is provided at one end away from the top cover. There is the rotation shaft, and the side cover is provided with a first fitting portion at one end close to the top cover;

The base body is provided with a second fitting part at a position corresponding to the first fitting part; the first fitting part is plug-fitted with the second fitting part, and the first fitting part and the second fitting part are inserted into each other. One of the two fitting parts is a protrusion, and the other of the two fitting parts is a groove.
The output pole base according to any one of claims 2 to 6, characterized in that,

When the cover is a side cover covering the open side, one of the side cover and the base body is provided with a chute, and the other of the two is connected to the Chutes slide fit.
The output pole base according to claim 10, characterized in that:

The output pole base also includes a toggle piece, and the toggle piece is protruding from the side cover.
The output pole base according to claim 11, characterized in that:

The toggle piece is located on the side of the side cover close to the installation cavity, the base body is also provided with a receiving cavity, the toggle piece is plugged into the accommodating cavity, and the toggle piece The end surface is exposed from the mouth of the accommodation cavity.
The output pole base according to claim 12, characterized in that:

One of the cavity wall of the accommodation cavity and the toggle member is provided with a protrusion, and the other of the two is provided with a groove, and the protrusion is inserted into the groove.
The output pole base according to any one of claims 2 to 6, characterized in that,

When the cover is a side cover that covers the open side, one of the side cover and the output pole base is provided with a buckle groove, and one of the two is provided with a buckle groove. The fastening part is fastened and matched with the fastening groove.
The output pole base according to claim 14, characterized in that:

The fastening parts are provided on both sides of the side cover, and the fastening grooves are provided on both sides of the base body. A plurality of the fastening parts correspond to a plurality of the fastening grooves one by one. Ground snap fit.
The output pole base according to any one of claims 2 to 6, characterized in that,

When the cover plate is a top cover disposed on the open top, the base body has a first receiving groove adjacent to the top cover, and the top cover is received in the first container. placed in the groove, and the outer surface of the top cover is flush with the outer surface of the base body;

and / or,

When the cover is a side cover disposed on the open side, the base body is provided with a second accommodation groove adjacent to the side cover, and the side cover is accommodated in the second The outer surface of the side cover is flush with the outer surface of the base body.
The output pole base according to any one of claims 2 to 6, characterized in that,

The base body has a through hole opposite to the opening, the through hole is connected to the installation cavity, and the through hole is used for connecting the output pole piece to external components.
A battery module is characterized by including:

The housing and the output pole base according to any one of claims 1 to 17, the output pole base is detachably matched with the housing.
The battery module according to claim 18, characterized in that:

The housing is provided with a recessed cavity, one of the cavity wall of the recessed cavity and the base body is provided with a track, and the other of the two is provided with a matching groove, and the track is provided with the matching groove. Groove slip fit.
The battery module according to claim 19, characterized in that:

The matching groove has a gap, and an elastic limiter is connected to the rail. The rail is used to slidely cooperate with the matching groove in a preset direction, and when the rail cooperates with the matching groove, the The elastic limiting member is exposed from the notch and contacts the wall of the housing at the notch to prevent the base body from moving in the opposite direction of the preset direction.
The battery module according to claim 20, characterized in that:

The fitting groove has a groove bottom located downstream of the preset direction, and the groove bottom abuts and cooperates with the track to prevent the base body from continuing to move in the preset direction.
The battery module according to claim 19, characterized in that:

The battery module includes a plurality of battery cells disposed in the housing. The housing includes an end plate located at one end in a stacking direction of the plurality of battery cells, and the recessed cavity is opened in the end plate.