Pole assembly, battery and electric equipment

Abstract

The invention relates to a pole assembly, a battery and electric equipment, and relates to the technical field of batteries, the pole assembly comprises an insulating part, a first pole body, a second pole body and a contact finger part, the first pole body is used for being electrically connected with a confluence assembly; the second pole body is used for being electrically connected with a tab; the contact finger piece is abutted between the first pole body and the second pole body; the insulating part is used for wrapping and fixing the first pole body, the second pole body and the contact finger part. According to the pole assembly, the battery and the electric equipment, a circuit can be cut off more thoroughly, secondary conduction of the pole and the tab is prevented, and damage to the battery is reduced.

Description

Technical Field

[0001] This application relates to the technical field of batteries, and particularly to a pole assembly, a battery, and an electrical device. Background Art

[0002] During the use of a battery, if an external short circuit occurs, the battery is prone to explosion and fire, posing a serious safety hazard. In related technologies, a fuse structure is provided on the adapter plate between the pole and the tab. When a short circuit occurs outside the battery, the fuse structure melts at high temperature to cut off the circuit. However, the fuse structure in related technologies is prone to incomplete melting, that is, the melted part is prone to re-connecting the pole and the tab, causing damage to the battery. Summary of the Invention

[0003] To solve the above technical problems, embodiments of this application provide a pole assembly, a battery, and an electrical device, which can more thoroughly cut off the circuit, prevent the pole and the tab from being re-conducted, and reduce the damage to the battery.

[0004] In a first aspect, a pole assembly is provided, including:

[0005] An insulating member;

[0006] A first pole body for electrically connecting with a busbar assembly;

[0007] A second pole body for electrically connecting with a tab;

[0008] A finger member abutted between the first pole body and the second pole body;

[0009] Wherein, the insulating member is used to wrap and fix the first pole body, the second pole body, and the finger member.

[0010] According to the first aspect of this application, the second pole body is provided with a receiving cavity, and a part of the first pole body is received in the receiving cavity;

[0011] Wherein, the finger member is disposed between the bottom wall of the receiving cavity and the bottom wall of the first pole body; a part of the insulating member is filled between the inner wall of the receiving cavity and the outer wall of the first pole body.

[0012] According to the first aspect of this application, a first flanging is convexly provided on the outer peripheral wall of the first pole body, and the first flanging is disposed in the receiving cavity;

[0013] A second flanging is convexly provided on the inner peripheral wall of the receiving cavity, and the projection of the second flanging on the surface of the first flanging overlaps with a part of the first flanging.

[0014] According to the first aspect of the present application, the second flanging is located at the opening end of the accommodation cavity.

[0015] According to the first aspect of the present application, the pole column assembly further includes:

[0016] An insulating ring sleeved on the first pole column body, one side of the insulating ring abuts against the first flanging, and the other side of the insulating ring abuts against the part of the insulating member filled between the inner wall of the accommodation cavity and the outer wall of the first pole column body.

[0017] According to the first aspect of the present application, a third flanging is convexly provided on the outer peripheral wall of the second pole column body;

[0018] The pole column assembly further includes:

[0019] A sealing ring sleeved on the second pole column body, one side of the sealing ring abuts against the third flanging, and the other side of the sealing ring abuts against the insulating member.

[0020] According to the first aspect of the present application, the finger member includes:

[0021] A support frame;

[0022] A connecting bar connected to the support frame, inclined abutting portions are provided on both opposite sides of the connecting bar, and the inclination angle of the inclined abutting portion with respect to the first plane is A, and A satisfies: 20° ≤ A ≤ 85°;

[0023] Wherein, the first plane represents a plane parallel to the support frame.

[0024] According to the first aspect of the present application, nano-pores are formed on at least part of the surfaces of the first pole column body and the second pole column body, and at least part of the insulating member is embedded in the nano-pores.

[0025] In a second aspect, a battery is further provided, including:

[0026] A housing provided with an assembly cavity and an installation through-hole;

[0027] A battery cell disposed in the assembly cavity, and the battery cell is provided with a tab;

[0028] A current collecting component disposed outside the housing;

[0029] The pole column assembly as described in the previous embodiment, at least part of the insulating member is located in the installation through-hole, the first pole column body is connected to the current collecting component, and the second pole column body is electrically connected to the tab.

[0030] In a third aspect, an electrical device is further provided, including:

[0031] The battery as described in the previous embodiment.

[0032] In the first aspect, for the pole column assembly and the battery provided in the embodiments of the present application, the insulating member plays a role of covering and fixing the first pole column body, the second pole column body and the finger piece, so that the first pole column body, the second pole column body and the finger piece remain in contact with each other under normal working conditions, thereby ensuring a stable electrical connection between the pole ear and the bus bar assembly. In the second aspect, by utilizing the characteristic that the insulating member will melt when the battery circuit is short-circuited, the covering effect of the insulating member on the first pole column body, the second pole column body and the finger piece is weakened, and the finger piece is separated from the first pole column body and the second pole column body, thereby cutting off the battery circuit and improving the safety performance. In the third aspect, by utilizing the characteristic that the melting of the insulating member is an irreversible process, the melted insulating member cannot cover and fix the finger piece, the first pole column body and the second pole column body subsequently, effectively preventing the secondary abutment of the first pole column body, the second pole column body and the finger piece, that is, effectively preventing the secondary conduction between the first pole column body, the second pole column body and the pole ear, and reducing the damage to the battery. In the fourth aspect, by utilizing the characteristic that the finger piece is an elastic structure, when the insulating member is heated and melted and the covering effect is weakened, the finger piece bounces off the first pole column body and the second pole column body by means of its own restoring force, which can not only quickly cut off the circuit, but also keep the first pole column body and the second pole column body at positions far from the finger piece, effectively preventing the secondary abutment of the first pole column body, the second pole column body and the finger piece, that is, effectively preventing the secondary conduction between the first pole column body, the second pole column body and the pole ear, and reducing the damage to the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] By describing the embodiments of the present application in more detail in conjunction with the drawings, the above and other objects, features and advantages of the present application will become more obvious. The drawings are used to provide a further understanding of the embodiments of the present application, and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation to the present application. In the drawings, the same reference numerals generally represent the same components or steps.

[0034] Figure 1 It is a schematic structural diagram of a pole column assembly and a top cover provided in an exemplary embodiment of the present application.

[0035] Figure 2 It is a partial exploded view of a pole column assembly and a top cover provided in an exemplary embodiment of the present application.

[0036] Figure 3 It is a partial cross-sectional view of a pole column assembly and a top cover provided in an exemplary embodiment of the present application.

[0037] Figure 4 It is a schematic structural diagram of an insulating member provided in an exemplary embodiment of the present application.

[0038] Figure 5 Schematic diagram of the structure of the second pole body provided by an exemplary embodiment of the present application.

[0039] Figure 6 Schematic diagram of the structure of the first pole body provided by an exemplary embodiment of the present application.

[0040] Figure 7 Partial cross-sectional view of the pole assembly and the top cover provided by another exemplary embodiment of the present application.

[0041] Figure 8 Schematic diagram of the structure of the finger contact provided by an exemplary embodiment of the present application from the first perspective.

[0042] Figure 9 Schematic diagram of the structure of the finger contact provided by an exemplary embodiment of the present application from the second perspective.

[0043] Reference numerals: 100 - pole assembly; 110 - top cover; 111 - mounting through - hole; 120 - insulating member; 121 - first assembly cavity; 122 - second assembly cavity; 130 - first pole body; 131 - first flanging; 140 - second pole body; 141 - receiving cavity; 142 - second flanging; 143 - third flanging; 150 - finger contact; 151 - support frame; 152 - connecting bar; 153 - inclined abutting portion; 160 - insulating ring; 170 - sealing ring. Detailed description of the specific implementation

[0044] Next, exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described herein.

[0045] The battery provided by the embodiment of the present application may include a housing, a battery cell, a busbar assembly, and a pole assembly 100 ( Figure 1 and Figure 2 shown in Figure 2 ). The housing is provided with an assembly cavity and a mounting through - hole 111 ( Figure 2 shown in

[0046] ). The battery cell is disposed in the assembly cavity. The housing can protect the battery cell. The busbar assembly is disposed outside the housing. At least a part of the pole assembly 100 is assembled in the mounting through - hole 111. The pole assembly 100 can be used for electrically connecting the battery cell and the busbar assembly. In this way, the battery cell can be electrically connected to other components through the pole assembly 100 and the busbar assembly.

[0046] In one embodiment, the aforementioned busbar assembly may include a busbar, an insulating baffle, etc. The related art has a detailed introduction to the structure of the busbar assembly, which will not be elaborated here.

[0047] In one embodiment, the outer shell may include a housing and a top cover 110 ( Figure 1 and Figure 2 as shown in). The top cover 110 is disposed on the top of the housing. The mounting through hole 111 may be provided on the top cover 110, or the mounting through hole 111 may also be provided on the housing. For the convenience of introduction, the embodiment of the present application takes the mounting through hole 111 being provided on the top cover 110 as an example for introduction (refer to Figure 1 and Figure 2 shown).

[0048] Figure 1 FIG. is a schematic structural diagram of a pole column assembly and a top cover provided by an exemplary embodiment of the present application.

[0049] Figure 2 FIG. is a partial exploded schematic diagram of a pole column assembly and a top cover provided by an exemplary embodiment of the present application.

[0050] Figure 3 FIG. is a partial cross-sectional view of a pole column assembly and a top cover provided by an exemplary embodiment of the present application. As Figures 1 to 3 shown, the pole column assembly 100 provided by the embodiment of the present application may include an insulating member 120, a first pole column body 130, a second pole column body 140, and a finger member 150. At least a part of the insulating member 120 is assembled in the mounting through hole 111. The first pole column body 130 is electrically connected to the aforementioned bus bar assembly. The second pole column body 140 is electrically connected to the aforementioned tab. The finger member 150 abuts between the first pole column body 130 and the second pole column body 140.

[0051] It should be understood that the tab and the bus bar assembly can be electrically connected through the first pole column body 130, the second pole column body 140, and the finger member 150 to meet the normal working requirements of the battery.

[0052] It should be noted that in the normal working state of the battery, the insulating member 120 is used to wrap and fix the first pole column body 130, the second pole column body 140, and the finger member 150. On the one hand, the insulating member 120 can prevent the top cover 110 from directly contacting the first pole column body 130, the second pole column body 140, and / or the finger member 150, improving the safety performance of the battery. On the other hand, the insulating member 120 plays a fixing role for the first pole column body 130, the second pole column body 140, and the finger member 150, so that the first pole column body 130, the second pole column body 140, and the finger member 150 remain in contact with each other in the normal working state, thereby ensuring a stable electrical connection between the tab and the bus bar assembly.

[0053] In one embodiment, the insulating member 120 may be selected from plastic materials, rubber materials, fiber materials, etc.

[0054] In practical applications, when a short circuit occurs in the battery circuit, a large amount of heat will be generated on the first pole column and the second pole column. After the insulating member 120 is heated, it will melt, and the wrapping and fixing effect of the insulating member 120 on the first pole column body 130, the second pole column body 140, and the finger contact member 150 will be weakened. The finger contact member 150 will separate from the first pole column body 130 and the second pole column body 140. In this way, the battery circuit can be cut off to ensure the safety of the battery circuit. Moreover, since the melting of the insulating member 120 is an irreversible process, the insulating member 120 cannot wrap and fix the finger contact member 150, the first pole column body 130, and the second pole column body 140 subsequently, effectively preventing the second contact of the first pole column body 130, the second pole column body 140, and the finger contact member 150, that is, effectively preventing the second conduction between the first pole column body 130, the second pole column body 140, and the pole ear, and reducing the damage to the battery.

[0055] It should be noted that generally, the finger contact member 150 is an elastic structure. In the normal working state, the insulating member 120 wraps and fixes the first pole column body 130, the second pole column body 140, and the finger contact member 150, and the finger contact member 150 is in a compressed state; when a short circuit occurs in the battery circuit, the insulating member 120 is heated and melted, and the wrapping effect of the insulating member 120 on the first pole column body 130, the second pole column body 140, and the finger contact member 150 is weakened. The finger contact member 150 can bounce off the first pole column body 130 and the second pole column body 140 by virtue of its own restoring force. In this way, not only can the circuit be quickly cut off, but also the first pole column body 130 and the second pole column body 140 can be located at positions far from the finger contact member 150, effectively preventing the second contact of the first pole column body 130, the second pole column body 140, and the finger contact member 150, that is, effectively preventing the second conduction between the first pole column body 130, the second pole column body 140, and the pole ear, and reducing the damage to the battery.

[0056] The pole assembly 100 and the battery provided by the embodiments of the present application, in the first aspect, the insulating member 120 plays a role of covering and fixing the first pole body 130, the second pole body 140 and the finger member 150, so that the first pole body 130, the second pole body 140 and the finger member 150 remain in contact with each other in the normal working state, thereby ensuring that a stable electrical connection can be achieved between the pole ear and the bus bar assembly; in the second aspect, by using the characteristic that the insulating member 120 will melt when the battery circuit is short-circuited, the covering effect of the insulating member 120 on the first pole body 130, the second pole body 140 and the finger member 150 is weakened, and the finger member 150 is separated from the first pole body 130 and the second pole body 140, thereby cutting off the battery circuit and improving the safety performance; in the third aspect, by using the characteristic that the melting of the insulating member 120 is an irreversible process, the melted insulating member 120 cannot cover and fix the finger member 150, the first pole body 130 and the second pole body 140 subsequently, effectively preventing the second abutment of the first pole body 130, the second pole body 140 and the finger member 150, that is, effectively preventing the second conduction between the first pole body 130, the second pole body 140 and the pole ear, and reducing the damage to the battery; in the fourth aspect, by using the characteristic that the finger member 150 is an elastic structure, when the insulating member 120 is heated and melted and the covering effect is weakened, the finger member 150 bounces off the first pole body 130 and the second pole body 140 by means of its own restoring force, which can not only achieve the effect of quickly cutting off the circuit, but also make the first pole body 130 and the second pole body 140 both in positions far from the finger member 150, effectively preventing the second abutment of the first pole body 130, the second pole body 140 and the finger member 150, that is, effectively preventing the second conduction between the first pole body 130, the second pole body 140 and the pole ear, and reducing the damage to the battery.

[0057] Figure 4 It is a schematic structural diagram of the insulating member provided by an exemplary embodiment of the present application. As Figure 4 shown, the insulating member 120 is provided with a first assembly cavity 121 and a second assembly cavity 122 that are isolated from each other. The first pole body 130 is assembled in the first assembly cavity 121, and the second pole body 140 is assembled in the second assembly cavity 122. It should be understood that the first assembly cavity 121 can limit the first pole body 130, and the second assembly cavity 122 can limit the second pole body 140. In this way, the assembly stability among the first pole body 130, the second pole body 140 and the insulating member 120 can be improved.

[0058] Figure 5 It is a schematic structural diagram of the second pole body provided by an exemplary embodiment of the present application. As Figure 2 、 Figure 3 and Figure 5As shown, the second pole body 140 is provided with a receiving cavity 141, and a part of the first pole body 130 is received in the receiving cavity 141. In this way, the space occupied by the first pole body 130 and the second pole body 140 in the height direction (refer to Figure 3 the directions indicated by arrows B and C) can be reduced, and the space utilization rate of the pole assembly 100 in the height direction can be improved; at the same time, the contact area between the second pole body 140 and the insulating member 120 can be increased, and the bonding strength can be improved.

[0059] As Figure 2 , Figure 3 and Figure 5 shown, the finger contact member 150 is disposed between the bottom wall of the receiving cavity 141 and the bottom wall of the first pole body 130. In this way, it is convenient for the finger contact member 150 to contact the first pole body 130 and the second pole body 140.

[0060] It should be noted that a part of the insulating member 120 is filled between the inner wall of the receiving cavity 141 and the outer wall of the first pole body 130. In this way, the insulating member 120 can relatively limit the first pole body 130 and the second pole body 140, and improve the assembly stability between the first pole body 130 and the second pole body 140.

[0061] It should be noted that the part of the insulating member 120 filled between the inner wall of the receiving cavity 141 and the outer wall of the first pole body 130 can also be used to cover the finger contact member 150, so as to achieve the effect of covering and fixing the first pole body 130, the second pole body 140 and the finger contact member 150.

[0062] It should be noted that the part of the insulating member 120 filled between the inner wall of the receiving cavity 141 and the outer wall of the first pole body 130 can be used as the partition wall between the aforementioned first assembly cavity 121 and the second assembly cavity 122 to ensure that the first assembly cavity 121 and the second assembly cavity 122 are independent of each other.

[0063] Figure 6 This is a schematic structural view of the first pole body provided by an exemplary embodiment of the present application. As Figure 3 , Figure 5 and Figure 6 shown, a first flanging 131 is convexly provided on the outer peripheral wall of the first pole body 130. The first flanging 131 is located in the receiving cavity 141. A second flanging 142 is convexly provided on the inner peripheral wall of the receiving cavity 141. The projection of the second flanging 142 on the surface of the first flanging 131 overlaps with a part of the first flanging 131.

[0064] It should be noted that the projection of the second flanging 142 on the surface of the first flanging 131 can be understood as the projection of the second flanging 142 towards the first flanging 131 along the height direction of the pole assembly 100. That is to say, when the first pole body 130 is removed from the accommodation cavity 141 along the height direction, the second flanging 142 will abut against the first flanging 131, restricting the first flanging 131 from being removed from the accommodation cavity 141 along the height direction, thereby effectively preventing the first pole body 130 from detaching from the accommodation cavity 141.

[0065] It should be noted that after the insulating member 120 covers the first pole body 130, the second pole body 140, and the finger member 150, the first flanging 131 and the second flanging 142 can apply a stable pressure to the insulating member 120, which can further improve the fixing effect among the first pole body 130, the second pole body 140, and the finger member 150, and avoid the weakening of the fixing effect of the insulating member 120 due to aging.

[0066] In an embodiment, an assembly hole is formed inside the second flanging 142, the outer periphery of the first flanging 131 is a cylindrical outer wall, the axis of the assembly hole is collinear with the axis of the first flanging 131, and the inner diameter of the assembly hole is smaller than the outer diameter of the first flanging 131 to achieve the function of restricting the first pole body 130 from detaching from the accommodation cavity 141.

[0067] As Figure 3 and Figure 5 shown, the second flanging 142 is located at the open end of the accommodation cavity 141. On the one hand, it is convenient for the second flanging 142 to be integrally formed with other parts of the second pole body 140, facilitating processing and manufacturing; on the other hand, the second flanging 142 can improve the strength of the open end of the accommodation cavity 141, avoiding deformation or fracture at the open end.

[0068] In practical applications, when the insulating member 120 melts due to heat, the first flanging 131 and the second flanging 142 are likely to come into contact with each other, causing the problem of secondary conduction between the first pole body 130 and the second pole body 140. For this reason, as Figure 2 、 Figure 3 and Figure 6As shown, the terminal post assembly 100 may further include an insulating ring 160. The insulating ring 160 is sleeved on the first terminal post body 130. One side of the insulating ring 160 abuts against the first flanging 131, and the other side of the insulating ring 160 abuts against the part of the insulating member 120 filled between the inner wall of the accommodating cavity 141 and the outer wall of the first terminal post body 130. Among them, the projection of the second flanging 142 on the first flanging 131 is located within the insulating ring 160. That is to say, the insulating ring 160 covers the projection of the second flanging 142 on the first flanging 131, which can prevent the first flanging 131 and the second flanging 142 from contacting each other. It should be understood that when the insulating member 120 melts due to heat, the insulating ring 160 is arranged between the first flanging 131 and the second flanging 142. In this way, the insulating ring 160 can prevent the first flanging 131 and the second flanging 142 from contacting each other and avoid secondary conduction between the first terminal post body 130 and the second terminal post body 140.

[0069] In one embodiment, the melting point of the material of the insulating ring 160 is greater than that of the insulating member 120. Materials with insulating properties and high temperature resistance such as ceramics and quartz glass can be selected. In this way, it can be ensured that the insulating ring 160 can still maintain its own shape when the insulating member 120 melts and play a good insulating role.

[0070] As Figure 2 , Figure 3 and Figure 5 shown, a third flanging 143 protrudes from the outer peripheral wall of the second terminal post body 140. Correspondingly, the terminal post assembly 100 may further include a sealing ring 170. The sealing ring 170 is sleeved on the second terminal post body 140. One side of the sealing ring 170 abuts against the third flanging 143, and the other side of the sealing ring 170 abuts against the insulating member 120. In this way, the insulating member 120 and the third flanging 143 can play a role in limiting and fixing the sealing ring 170 and improve the assembly stability between the sealing ring 170 and the second terminal post body 140.

[0071] It should be noted that after the terminal post assembly 100 is assembled on the top cover 110, the top cover 110 will press against the sealing ring 170. The sealing ring 170 can prevent moisture, particulate matter, etc. from entering the battery interior; in addition, the sealing ring 170 can also prevent the electrolyte from leaking out.

[0072] It should be noted that the sealing ring 170 is generally made of insulating material. As Figure 3 shown, after the terminal post assembly 100 is assembled on the top cover 110, the top cover 110 will press against the sealing ring 170. The sealing ring 170 can separate the second terminal post body 140 and the top cover 110 to avoid direct contact between the second terminal post body 140 and the top cover 110 and prevent short circuit.

[0073] It should be noted that the sealing ring 170 is generally of an elastic structure. Therefore, after the top cover 110 presses against the sealing ring 170, the sealing ring 170 will deform and be in a compressed state. When a short circuit occurs in the battery circuit and the insulating member 120 melts due to heat, the wrapping effect of the insulating member 120 on the first pole column 130, the second pole column 140, and the finger contact member 150 weakens. The sealing ring 170 can apply a pressing force to the second pole column 140 by means of the restoring force, so that the second pole column 140 and the finger contact member 150 are quickly separated, achieving the effect of quickly cutting off the circuit. As described above, in practical applications, the sealing ring 170 and the finger contact member 150 can jointly achieve the effect of quickly cutting off the circuit through their own restoring forces, effectively improving the overall safety performance of the battery.

[0074] Figure 7 This is a partial cross-sectional view of the pole column assembly and the top cover provided by another exemplary embodiment of the present application. As Figure 7 shown, in one embodiment, the first pole column 130 is not provided with the first flanging 131, and the second pole column 140 is not provided with the second flanging 142. After the assembly is completed, to prevent the separation between the first pole column 130, the second pole column 140, and the insulating member 120, Figure 7 the structure shown can adopt the nano-injection molding method to fix the insulating member 120, the first pole column 130, and the second pole column 140 to each other, so as to ensure that the insulating member 120 plays a role of wrapping and fixing the first pole column 130, the second pole column 140, and the finger contact member 150.

[0075] Specifically, a plurality of nano-holes (which can be formed by etching with an etching solution) are formed on the surfaces of the first pole column 130 and the second pole column 140 for contacting the insulating member 120. The injection molding material is embedded in the nano-holes, which can enhance the bonding force between the first pole column 130 and the insulating member 120, and can also enhance the bonding force between the second pole column 140 and the insulating member 120, achieving the effect of fixing the first pole column 130, the second pole column 140, and the insulating member 120 to each other.

[0076] It should be understood that when Figure 7 the structure shown is selected, a nano-injection molding structure can also be adopted between the insulating member 120 and the top cover 110 to achieve fixed connection.

[0077] It should be understood that Figure 7 compared with the structure shown in Figure 3 the structure shown reduces the structures of the first flanging 131 and the second flanging 142, the overall structure is simpler, and the processing costs of the first pole column 130 and the second pole column 140 are also lower.

[0078] Figure 8Schematic diagram of the finger contact provided by an exemplary embodiment of the present application from a first perspective. Figure 9 Schematic diagram of the finger contact provided by an exemplary embodiment of the present application from a second perspective. As Figure 8 and Figure 9 shown, the finger contact 150 may include a support frame 151 and connecting bars 152. The connecting bars 152 are connected to the support frame 151. On both opposite sides of the connecting bars 152, inclined abutting portions 153 are provided. The inclined abutting portions 153 are inclined relative to a first plane (which can be understood as a plane parallel to the support frame 151).

[0079] It should be understood that the inclined abutting portions 153 arranged in an inclined manner may form sharp portions at the ends far from the support frame 151. In a state where the insulating member 120 covers and fixes the first pole column 130, the second pole column 140, and the finger contact 150, the sharp portions are not easily restricted by the insulating member 120 and can break through the insulating member 120, thereby contacting the first pole column 130 and the second pole column 140, preventing the finger contact 150, the first pole column 130, and the second pole column 140 from being insulated from each other by the insulating member 120, so as to ensure stable electrical connection among the first pole column 130, the second pole column 140, and the finger contact 150.

[0080] In one embodiment, the number of the connecting bars 152 is multiple. The multiple connecting bars 152 are all connected to the support frame 151. In this way, the overall strength of the finger contact 150 can be enhanced. The multiple connecting bars 152 all contact the first pole column 130 and the second pole column 140, which can increase the area of the contact surface of the finger contact 150 for contacting the first pole column 130 and the second pole column 140, and improve the reliability of electrical connection.

[0081] It should be understood that if the inclination angle A of the inclined abutting portion 153 relative to the first plane is too small, it will cause the inclined abutting portion 153 to be not easily break through the restraint of the insulating member 120, affecting the electrical connection stability among the finger contact 150, the first pole column 130, and the second pole column 140; if the inclination angle A of the inclined abutting portion 153 relative to the first plane is too large, it is easy to cause the inclined abutting portion 153 to not easily generate elastic deformation (the elastic deformation amount is small) after abutting against the first pole column 130 and the second pole column 140, thus easily causing the problem that the circuit cannot be cut off in time when the battery circuit is short-circuited. Therefore, the inclination angle A of the embodiment of the present application satisfies the following range: 20° ≤ A ≤ 85°.

[0082] The embodiment of the present application also provides an electrical device. The electrical device includes the battery described in the foregoing embodiment and has all the functions of the battery. The beneficial effects of the electrical device can refer to the beneficial effects of the foregoing battery.

[0083] In one embodiment, the above-mentioned battery can be a lithium-ion battery, a sodium-ion battery or a magnesium-ion battery, and its external contour can be cylindrical, flat, cuboid or other shapes, but is not limited thereto.

[0084] In some embodiments, the battery can be a battery module. When there are multiple batteries, the multiple batteries are arranged and fixed to form a battery module.

[0085] In some embodiments, the battery can be a battery pack. The battery pack includes a box body and a battery, and the battery or the battery module is accommodated in the box body.

[0086] In some embodiments, the battery can be an energy storage device. The energy storage device includes an energy storage container, an energy storage cabinet, etc.

[0087] In one embodiment, the above-mentioned power-consuming device includes the above-mentioned battery and can be powered by the above-mentioned battery. Among them, the above-mentioned power-consuming device can be a vehicle, a mobile phone, a portable device, a laptop computer, a ship, a spacecraft, an electric toy, an electric tool, an energy storage device, a amusement device, an elevator and a lifting device, etc. The vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc.; the spacecraft includes an airplane, a rocket, a space shuttle and a spaceship, etc.; the electric toy includes a fixed or mobile electric toy, for example, a game console, an electric vehicle toy, an electric ship toy or an electric airplane toy, etc.; the electric tool includes a metal cutting electric tool, a grinding electric tool, an assembly electric tool and a railway electric tool, for example, an electric drill, an electric grinding wheel, an electric wrench, an electric screwdriver, a hammer drill, an impact electric drill, a concrete vibrator and a planer, etc.; the energy storage device can be an energy storage wall, a base station energy storage, a container energy storage, etc.; the amusement device can be a carousel, a drop tower, etc. The present application does not impose special restrictions on the above-mentioned power-consuming devices.

[0088] The basic principles of the present application have been described above in conjunction with specific embodiments. However, it should be noted that the advantages, advantages, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, advantages, effects, etc. are essential for each embodiment of the present application. In addition, the above-mentioned disclosed specific details are only for the purposes of illustration and easy understanding, rather than limitations, and the above details do not limit the present application to necessarily adopt the above specific details to implement.

[0089] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any way. Words such as "comprising," "including," "having," etc. are open-ended terms that mean "including but not limited to" and can be used interchangeably with each other. The word "or" and "and" used herein refer to the phrase "and / or" and can be used interchangeably with it, unless the context clearly indicates otherwise. The phrase "such as" used herein refers to the phrase "such as but not limited to" and can be used interchangeably with it.

[0090] It should also be noted that in the devices, equipment, and methods of this application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent solutions of this application.

[0091] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

[0092] The above description has been given for purposes of illustration and description. In addition, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although several example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions, and sub-combinations thereof.

Claims

1. A pole assembly, characterized in that: include: Insulating member (120); A first pole column (130) is used for being electrically connected to the busbar assembly; A second pole column (140) for electrically connecting to the pole tab; A contact finger (150) abuts between the first pole column (130) and the second pole column (140); The insulating member (120) is used to wrap and fix the first pole body (130), the second pole body (140) and the contact finger member (150).

2. The pole assembly according to claim 1, characterized in that: The second pole body (140) is provided with a receiving cavity (141), and a portion of the first pole body (130) is received in the receiving cavity (141); The contact member (150) is padded between the bottom wall of the accommodating cavity (141) and the bottom wall of the first pole column (130); and a portion of the insulating member (120) is filled between the inner wall of the accommodating cavity (141) and the outer wall of the first pole column (130).

3. The pole assembly according to claim 2, characterized in that: The outer peripheral wall of the first pole body (130) is convexly provided with a first flange (131), and the first flange (131) is arranged in the accommodating cavity (141); A second flange (142) is convexly provided on the inner peripheral wall of the accommodating cavity (141), and a projection of the second flange (142) on the surface of the first flange (131) overlaps a portion of the first flange (131).

4. The pole assembly according to claim 3, characterized in that: The second flange (142) is located at the opening end of the accommodating cavity (141).

5. The pole assembly according to claim 3, characterized in that: The pole assembly also includes: An insulating ring (160) is sleeved on the first pole column (130), one side of the insulating ring (160) abuts against the first flange (131), and the other side of the insulating ring (160) abuts against a portion of the insulating member (120) filled between the inner wall of the accommodating cavity (141) and the outer wall of the first pole column (130).

6. The pole assembly according to claim 2, characterized in that: The outer peripheral wall of the second pole column (140) is convexly provided with a third flange (143); The pole assembly also includes: The sealing ring (170) is sleeved on the second pole column (140), one side of the sealing ring (170) abuts against the third flange (143), and the other side of the sealing ring (170) abuts against the insulating member (120).

7. The pole assembly according to any one of claims 1 to 6, characterized in that: The contact finger (150) comprises: Support frame (151); A connecting strip (152) is connected to the supporting frame (151), and two opposite sides of the connecting strip (152) are provided with inclined abutment portions (153), and an inclination angle of the inclined abutment portion (153) relative to the first plane is A, and A satisfies: 20°≤A≤85°; Therein, the first plane represents a plane parallel to the support frame (151).

8. The pole assembly according to any one of claims 1 to 6, characterized in that: Nanopores are formed on at least part of the surface of the first pole body (130) and the second pole body (140), and the insulating member (120) is at least partly embedded in the nanopores.

9. A battery, characterized in that: include: The housing is provided with an assembly cavity and a mounting through hole (111); A battery cell is arranged in the assembly cavity, and the battery cell is provided with a pole ear; A confluence assembly is arranged on the outer side of the housing; According to the pole assembly as described in any one of claims 1 to 8, at least a portion of the insulating member (120) is located in the mounting through hole (111), the first pole body (130) is connected to the bus assembly, and the second pole body (140) is electrically connected to the pole lug.

10. An electrical device, characterized in that: include: The battery as claimed in claim 9.

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