Insulation cap, battery pack and vehicle

Abstract

The utility model provides an insulating cap, a battery pack and a vehicle, relates to the technical field of automobiles, and is used for solving the problem of how to improve the assembling efficiency of the battery pack. The protruding part is connected with the base, the protruding part comprises an isolation groove and a first surrounding plate, the isolation groove comprises a side wall and a bottom wall, the side wall is connected with the bottom wall, and a through hole is formed in the bottom wall; the first surrounding plate is arranged on the outer side of the isolation groove and connected with the side wall and the base.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to an insulating cap, a battery pack and a vehicle. Background Art

[0002] With the development of electric vehicles, the battery pack assembly process requirements are getting higher and higher. The traditional rubber insulating cap in the battery pack needs to be assembled again after the high-voltage connection busbar is assembled. The assembly process of this solution is cumbersome. At the same time, rubber products are difficult to package and store after molding, and are prone to deformation during transportation, resulting in the need for manual reshaping during use, which increases labor time loss.

[0003] Therefore, how to improve the assembly efficiency of the battery pack is a problem that needs to be solved. Utility Model Content

[0004] The present application provides an insulating cap, a battery pack and a vehicle, which are used to solve the problem of how to improve the assembly efficiency of the battery pack.

[0005] In the first aspect of the present application, in order to solve the above-mentioned problem, an insulating cap is provided, which includes: a base and a protrusion; the protrusion is connected to the base, the protrusion includes: an isolation groove and a first enclosure, the isolation groove includes: a side wall and a bottom wall, the side wall and the bottom wall are connected, and a through hole is provided on the bottom wall; the first enclosure is provided on the outside of the isolation groove, and the first enclosure is connected to both the side wall and the base.

[0006] In this way, the base can be abutted against the busbar, and then the bolts are passed through the through holes of the insulating cap to connect to the busbar. The insulating cap can be connected to the connecting bolts while fixing the busbar. Compared with clamping the rubber insulating cap with the connecting bolts, or relying on the elasticity of the rubber insulating cap and the interference fit with the connecting bolts, clamping the insulating cap by the bolts and the busbar can make the connection between the insulating cap and the bolts more secure.

[0007] In some embodiments of the present application, the first enclosure is spaced apart from the side wall, the first enclosure is connected to one end of the side wall away from the through hole, and the other end of the first enclosure is connected to the base.

[0008] In this way, the first enclosure can be separated from the side wall, so that there is a gap between the first enclosure and the side wall. When the bolt heats up, the gap can be used for insulation to prevent the insulating cap from overheating, softening or being damaged, causing the user to accidentally touch the bolt, thereby improving the safety of the insulating cap.

[0009] In some embodiments of the present application, the base includes: a bottom plate and multiple bent edges; the multiple bent edges are connected to the bottom plate, the multiple bent edges are bent toward a side away from the raised portion, and the multiple bent edges and the bottom plate form multiple limiting grooves.

[0010] In this way, the busbars are connected by bolts, and the busbars may rotate around the bolts, which may cause the busbars to loosen or be misplaced. The limit grooves can limit the busbars, making the connection between the busbars tighter and avoiding the busbars from loosening or being misplaced, which may cause the busbars to not work properly.

[0011] In some embodiments of the present application, the insulating cap further includes: a collar, which is disposed on the inner peripheral wall of the through hole, and the collar is connected to the bottom wall.

[0012] In this way, setting the ring on the inner wall of the through hole can improve the strength of the through hole, and then improve the strength of the connection between the bottom wall and the bolt, which can avoid excessive wear or damage to the inner wall of the through hole due to long-term shaking during use.

[0013] In some embodiments of the present application, the material of the ring is a metal material with a nickel-plated surface.

[0014] In this way, the metal material has higher strength than the plastic material, thereby improving the strength of the connection between the bottom wall and the bolt, which can avoid excessive wear or damage to the surrounding wall of the through hole due to long-term shaking during use. Nickel plating the surface of the ring can prevent the metal ring from rusting.

[0015] In some embodiments of the present application, the base and the protrusion are an integrated structure, and the base and the protrusion are made of plastic material.

[0016] In this way, compared with connecting the base and the protrusion by other means, the base and the protrusion as an integrated structure have higher strength, which can prevent the base and the protrusion from being damaged or broken at the connection. In addition, the base and the protrusion are made of plastic material, and the base and the protrusion as an integrated structure can also be injection molded at one time. There is no need to produce the base and the protrusion separately and then connect them, which reduces the production steps and reduces the production cost. Compared with rubber products, which are difficult to package and preserve after molding and are prone to deformation during transportation, resulting in manual re-shaping during use, which increases labor loss. Plastic molding is more stable and reliable than rubber molding.

[0017] In a second aspect of the present application, a battery pack is provided, comprising the above-mentioned insulating cap, as well as: a plurality of battery bodies, a plurality of busbars and bolts; the busbar is used to connect the battery bodies, the limiting groove is used to limit the busbar, and the busbar is provided with connecting holes; the bolts are provided in cooperation with the connecting holes, and the bolts are used to connect the busbars.

[0018] In this way, the bolts can connect multiple busbars and then connect multiple battery bodies. The insulating caps can isolate the bolts to prevent other bolts or other lines from contacting the isolated bolts, causing a short circuit in the battery pack connection structure and making the battery pack unable to be used normally. It can also prevent users from accidentally touching the bolts, thereby improving the overall safety of the battery pack.

[0019] In some embodiments of the present application, the insulating cap also includes: a ring, which is arranged on the inner circumferential wall of the through hole, and the ring is connected to the bottom wall. The bolt includes: a screw rod and a bolt head, and the screw rod is connected to the bolt head. The inner diameter of the ring is larger than the diameter of the screw rod, and the inner diameter of the ring is smaller than the diameter of the bolt head.

[0020] In this way, the screw can be connected to the connecting hole on the busbar through the through hole, and the inner diameter of the ring is smaller than the diameter of the bolt head. The bolt and the busbar can clamp the ring, and then fix the insulating cap to prevent the insulating cap from falling off. The insulating cap can prevent other bolts or other lines from contacting the isolated bolt, causing a short circuit in the battery pack connection structure, making the battery pack unable to be used normally, and can also prevent users from accidentally touching the bolt, thereby improving the overall safety of the battery pack.

[0021] In some embodiments of the present application, the insulating cap includes: a base and a protrusion; the protrusion is connected to the base, the protrusion includes: an isolation groove and a first enclosure, the isolation groove includes: a side wall and a bottom wall, the side wall and the bottom wall are connected, and a through hole is provided on the bottom wall; the first enclosure is provided on the outside of the isolation groove, the first enclosure is connected to both the side wall and the base; the isolation groove is used to isolate the bolt head, and the depth of the isolation groove is greater than the height of the bolt head.

[0022] In this way, the isolation groove can prevent other bolts or other circuits from contacting the isolated bolt, causing a short circuit in the battery pack connection structure and making the battery pack unable to be used normally. It can also prevent users from accidentally touching the bolt, thereby improving the overall safety of the battery pack.

[0023] In a third aspect of the present application, a vehicle is provided, comprising: the above-mentioned battery pack.

[0024] Since the vehicle provided in the embodiment of the present application includes the battery pack as described in the second aspect above, the two can solve the same problem and achieve the same effect, and the present application will not elaborate on them one by one here.

[0025] Therefore, the above technical features of the present application have the following beneficial effects:

[0026] (1) In this way, the base can be abutted against the busbar, and then the bolts are passed through the through holes of the insulating cap to connect to the busbar. The insulating cap can be connected to the connecting bolts while the busbar is fixed. Compared with clamping the rubber insulating cap to the connecting bolts, or relying on the elasticity of the rubber insulating cap to have an interference fit with the connecting bolts, clamping the insulating cap by the bolts and the busbar can make the connection between the insulating cap and the bolts more secure.

[0027] (2) In this way, the busbars are connected by bolts, and the busbars may rotate around the bolts, which may cause the busbars to loosen or be misplaced. The limiting grooves can limit the busbars, making the connection between the busbars tighter and avoiding the busbars from loosening or being misplaced, which may cause the busbars to not work properly.

[0028] (3) In this way, the metal material has a higher strength than the plastic material, thereby improving the strength of the connection between the bottom wall and the bolt, which can prevent the peripheral wall of the through hole from being excessively worn or damaged due to long-term shaking during use. Nickel plating the surface of the ring can prevent the metal ring from rusting.

[0029] (4) In this way, compared with connecting the base and the protrusion by other means, the base and the protrusion as an integrated structure have higher strength, which can prevent the base and the protrusion from being damaged or broken at the connection. In addition, the base and the protrusion are made of plastic material. The base and the protrusion as an integrated structure can also be injection molded at one time, without the need to produce the base and the protrusion separately and then connect them, thereby reducing the production steps and reducing the production cost. Compared with rubber products, which are difficult to package and store after molding and are prone to deformation during transportation, resulting in the need for manual reshaping during use, which increases the loss of work time, plastic molding is more stable and reliable than rubber molding.

[0030] (5) In this way, the screw rod can be connected to the connection hole on the busbar through the through hole, and the inner diameter of the collar is smaller than the diameter of the bolt head. The bolt and the busbar can clamp the collar, thereby fixing the insulating cap to prevent the insulating cap from falling off. The insulating cap can prevent other bolts or other circuits from contacting the isolated bolt, causing a short circuit in the battery pack connection structure, making the battery pack unable to be used normally, and can also prevent users from accidentally touching the bolt, thereby improving the overall safety of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application, and do not constitute an improper limitation on the present application.

[0032] Figure 1 A schematic diagram of the structure of an insulating cap provided in an embodiment of the present application;

[0033] Figure 2 A connection diagram of an insulating cap provided in an embodiment of the present application;

[0034] Figure 3 Provided in the embodiments of this application Figure 1 Schematic cross section along AA. DETAILED DESCRIPTION

[0035] In order to enable ordinary persons in the art to better understand the technical solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0036] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0037] With the development of electric vehicles, the battery pack assembly process requirements are getting higher and higher. The traditional rubber insulating cap in the battery pack needs to be assembled again after the high-voltage connection busbar is assembled. The assembly process of this solution is cumbersome. At the same time, rubber products are difficult to package and store after molding, and are prone to deformation during transportation, resulting in the need for manual reshaping during use, which increases labor time loss. Therefore, how to improve the assembly efficiency of the battery pack is a problem that needs to be solved.

[0038] In the first aspect of this application, Figure 1 , Figure 2 and Figure 3 As shown, in order to solve the above problems, an insulating cap 100 is provided, the insulating cap 100 includes: a base 10 and a protrusion 20; the protrusion 20 is connected to the base 10, the protrusion 20 includes: an isolation groove 21 and a first enclosure 22, the isolation groove 21 includes: a side wall 211 and a bottom wall 212, the side wall 211 and the bottom wall 212 are connected, and a through hole 213 is arranged on the bottom wall 212; the first enclosure 22 is arranged around the outside of the isolation groove 21, and the first enclosure 22 is connected to both the side wall 211 and the base 10.

[0039] The shape of the protrusion 20 can be square or circular, which is not limited in the present application.

[0040] In this way, the base 10 can be abutted against the busbar 40, and then the bolt 50 is passed through the through hole 213 of the insulating cap 100 to be connected to the busbar 40. The insulating cap 100 can be connected to the connecting bolt 50 while fixing the busbar 40. Compared with clamping the rubber insulating cap 100 with the connecting bolt 50, or relying on the elasticity of the rubber insulating cap 100 to have an interference fit with the connecting bolt 50, clamping the insulating cap 100 by the bolt 50 and the busbar 40 can make the connection between the insulating cap 100 and the bolt 50 more secure.

[0041] In a possible structural design, the base 10 and the bottom wall 212 of the isolation groove 21 are in the same plane.

[0042] In this way, when the bolt 50 fixes the insulating cap 100 through the through hole 213, the base 10 and the bottom wall 212 can abut against the busbar 40 at the same time, which can prevent the insulating cap 100 from shaking and improve the firmness of the installation of the insulating cap 100.

[0043] In addition, the base 10 and the bottom wall 212 of the isolation groove 21 may be in the same plane or in different planes, which is not limited in the present application.

[0044] In some embodiments of the present application, Figure 1 , Figure 2 and Figure 3 As shown, the first enclosure 22 is spaced apart from the side wall 211 , the first enclosure 22 is connected to one end of the side wall 211 away from the through hole 213 , and the other end of the first enclosure 22 is connected to the base 10 .

[0045] In this way, the first enclosure 22 can be separated from the side wall 211, so that there is a gap between the first enclosure 22 and the side wall 211. When the bolt 50 heats up, the gap can be used for insulation to prevent the insulating cap 100 from overheating, softening or being damaged, causing the user to accidentally touch the bolt 50, thereby improving the safety of the insulating cap 100.

[0046] In some embodiments of the present application, Figure 1 and Figure 2 As shown, the base 10 includes: a bottom plate 11 and multiple bent edges 12; the multiple bent edges 12 are connected to the bottom plate 11, the multiple bent edges 12 are bent toward a side away from the protrusion 20, and the multiple bent edges 12 and the bottom plate 11 form multiple limiting grooves 13.

[0047] In this way, the busbar 40 is connected by the bolt 50, and the busbar 40 may rotate around the bolt 50, which may cause the busbar 40 to loosen or be misplaced. The limiting groove 13 can limit the busbar 40, which can make the connection between the busbars 40 tighter and avoid the busbar 40 from loosening or being misplaced, resulting in the busbars 40 not being able to work normally.

[0048] In a possible structural design, the base 10 includes: a first limiting groove 131, a second limiting groove and a third limiting groove 132, the first limiting groove 131, the second limiting groove and the third limiting groove 132 are connected to each other, the first limiting groove 131 and the second limiting groove are coaxially arranged, the third limiting groove 132 is arranged at the connection between the first limiting groove 131 and the second limiting groove, and the third limiting groove 132 is perpendicular to the first limiting groove 131 and the second limiting groove.

[0049] In this way, the first limiting groove 131 and the second limiting groove can be set in cooperation with the first busbar 40 to limit the first busbar 40, and the third limiting groove 132 can limit the second busbar 40 connected to the first busbar 40, so as to make the connection between the busbars 40 tighter and avoid the busbar 40 from loosening or misaligning, resulting in the busbars 40 not being able to work normally.

[0050] In addition, the base 10 may include a plurality of limiting grooves 13 , and the plurality of limiting grooves 13 may be perpendicular to each other, and the angles between the plurality of limiting grooves 13 may also be other angles, which is not limited in the present application.

[0051] In some embodiments of the present application, Figure 1 and Figure 3 As shown, the insulating cap 100 further includes: a collar 30 disposed on the inner peripheral wall of the through hole 213 , and the collar 30 is connected to the bottom wall 212 .

[0052] In this way, setting the ring 30 on the inner wall of the through hole 213 can improve the strength of the through hole 213, and further improve the strength of the connection between the bottom wall 212 and the bolt 50, so as to avoid excessive wear or damage to the inner wall of the through hole 213 due to long-term shaking during use.

[0053] In some embodiments of the present application, the material of the ring 30 is a metal material with a nickel-plated surface.

[0054] In this way, the metal material has higher strength than the plastic material, thereby improving the strength of the connection between the bottom wall 212 and the bolt 50, and avoiding excessive wear or damage to the surrounding wall of the through hole 213 due to long-term shaking during use. Nickel plating the surface of the ring 30 can prevent the metal ring 30 from rusting.

[0055] The metal material may be aluminum, iron, copper or other metals, and this application does not limit this.

[0056] In some embodiments of the present application, the base 10 and the protrusion 20 are an integrated structure, and the base 10 and the protrusion 20 are made of plastic material.

[0057] In this way, compared with connecting the base 10 and the raised portion 20 by other means, the base 10 and the raised portion 20 as an integrated structure have higher strength, which can prevent the base 10 and the raised portion 20 from being damaged or broken at the connection. In addition, the base 10 and the raised portion 20 are made of plastic material, and the base 10 and the raised portion 20 as an integrated structure can also be injection molded at one time. There is no need to produce the base 10 and the raised portion 20 separately and then connect them, which reduces the production steps and reduces the production cost. Compared with rubber products, which are difficult to package and store after molding and are prone to deformation during transportation, resulting in the need for manual reshaping during use, which increases labor loss. Plastic molding is more stable and reliable than rubber molding.

[0058] In the second aspect of the present application, a battery pack is provided, comprising the above-mentioned insulating cap 100, as well as: a plurality of battery bodies, a plurality of busbars 40 and bolts 50; the busbar 40 is used to connect the battery bodies, the limiting groove 13 is used to limit the busbar 40, and the busbar 40 is provided with a connecting hole; the bolt 50 is provided in cooperation with the connecting hole, and the bolt 50 is used to connect the busbar 40.

[0059] In this way, the bolt 50 can connect multiple bus bars 40 and then connect multiple battery bodies. The insulating cap 100 can isolate the bolt 50 to prevent other bolts 50 or other circuits from contacting the isolated bolt 50, causing a short circuit in the battery pack connection structure and making the battery pack unable to be used normally. It can also prevent users from accidentally touching the bolt 50, thereby improving the overall safety of the battery pack.

[0060] In a possible structural design, Figure 1 , Figure 2 and Figure 3 As shown, the battery pack may further include: a base 60 disposed below the busbar 40 , and the base 60 is used to support the busbar 40 .

[0061] In this way, the base 60 can support the busbar 40 to prevent the busbar 40 from shaking, which may cause the busbar 40 to loosen or misplace, and the base 60 can make the connection between the busbars 40 tighter to prevent the busbar 40 from loosening or misplacement, which may cause the busbars 40 to not work properly.

[0062] The base 60 may be connected to the bolt 50 or may not be connected to the bolt 50 , and this application does not limit this.

[0063] In some embodiments of the present application, the insulating cap 100 also includes: a ring 30, which is arranged on the inner circumferential wall of the through hole 213, and the ring 30 is connected to the bottom wall 212. The bolt 50 includes: a screw rod and a bolt 50 head, and the screw rod is connected to the bolt 50 head. The inner diameter of the ring 30 is larger than the diameter of the screw rod, and the inner diameter of the ring 30 is smaller than the diameter of the bolt 50 head.

[0064] In this way, the screw can be connected to the connecting hole on the busbar 40 through the through hole 213, and the inner diameter of the ring 30 is smaller than the diameter of the head of the bolt 50. The bolt 50 and the busbar 40 can clamp the ring 30, and then fix the insulating cap 100 to prevent the insulating cap 100 from falling off. The insulating cap 100 can prevent other bolts 50 or other circuits from contacting the isolated bolt 50, causing a short circuit in the battery pack connection structure, making the battery pack unable to be used normally, and can also prevent users from accidentally touching the bolt 50, thereby improving the overall safety of the battery pack.

[0065] In addition, the head of the bolt 50 can be a hexagonal head, a round head, a square head, a countersunk head, etc., and the screw can be a full thread or a half thread, etc., which is not limited in the present application.

[0066] In some embodiments of the present application, the insulating cap 100 includes: a base 10 and a protrusion 20; the protrusion 20 is connected to the base 10, the protrusion 20 includes: an isolation groove 21 and a first enclosure 22, the isolation groove 21 includes: a side wall 211 and a bottom wall 212, the side wall 211 and the bottom wall 212 are connected, and a through hole 213 is provided on the bottom wall 212; the first enclosure 22 is arranged around the outer side of the isolation groove 21, and the first enclosure 22 is connected to the side wall 211 and the base 10; the isolation groove 21 is used to isolate the head of the bolt 50, and the depth of the isolation groove 21 is greater than the height of the head of the bolt 50.

[0067] In this way, the isolation groove 21 can prevent other bolts 50 or other circuits from contacting the isolated bolt 50, causing a short circuit in the battery pack connection structure and making the battery pack unable to be used normally. It can also prevent users from accidentally touching the bolt 50, thereby improving the overall safety of the battery pack.

[0068] In a third aspect of the present application, a vehicle is provided, comprising: the above-mentioned battery pack.

[0069] Since the vehicle provided in the embodiment of the present application includes the battery pack as described in the second aspect above, the two can solve the same problem and achieve the same effect, and the present application will not elaborate on them one by one here.

[0070] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An insulating cap, characterized in that: The insulating cap comprises: Pedestal; A raised portion connected to the base, the raised portion comprising: The isolation groove comprises: a side wall and a bottom wall, wherein the side wall and the bottom wall are connected, and a through hole is arranged on the bottom wall; The first enclosure plate is disposed around the outer side of the isolation groove, and the first enclosure plate is connected to both the side wall and the base.

2. An insulating cap according to claim 1, characterized in that: The first enclosure is spaced apart from the side wall, the first enclosure is connected to one end of the side wall away from the through hole, and the other end of the first enclosure is connected to the base.

3. An insulating cap according to claim 1, characterized in that: The base comprises: Base plate; A plurality of bent edges are connected to the bottom plate, the plurality of bent edges are bent toward a side away from the raised portion, and the plurality of bent edges and the bottom plate form a plurality of limiting grooves.

4. An insulating cap according to claim 2, characterized in that: The insulating cap also includes: A collar is arranged on the inner peripheral wall of the through hole, and the collar is connected to the bottom wall.

5. An insulating cap according to claim 4, characterized in that: The material of the sleeve ring is a metal material with nickel-plated surface.

6. The insulating cap according to claim 1, characterized in that: The base and the raised portion are an integrated structure, and the base and the raised portion are made of plastic material.

7. A battery pack, characterized in that: include: An insulating cap as described in any one of claims 1 to 6 above, and: A plurality of battery bodies; A plurality of busbars, wherein the busbars are used to connect the battery body, the limiting grooves are used to limit the busbars, and the busbars are provided with connection holes; Bolts are arranged in cooperation with the connection holes, and the bolts are used to connect the busbars.

8. A battery pack according to claim 7, characterized in that: The insulating cap also includes: A collar, disposed on the inner peripheral wall of the through hole, the collar being connected to the bottom wall; The bolt comprises a screw rod and a bolt head, wherein the screw rod is connected to the bolt head, the inner diameter of the collar is larger than the diameter of the screw rod, and the inner diameter of the collar is smaller than the diameter of the bolt head.

9. A battery pack according to claim 7, characterized in that: The insulating cap comprises: Pedestal; A raised portion connected to the base, the raised portion comprising: The isolation groove comprises: a side wall and a bottom wall, wherein the side wall and the bottom wall are connected, and a through hole is arranged on the bottom wall; A first enclosure plate is disposed around the outer side of the isolation groove, and the first enclosure plate is connected to both the side wall and the base; The isolation groove is used to isolate the bolt head, and the depth of the isolation groove is greater than the height of the bolt head.

10. A vehicle, characterized in that: include: A battery pack as described in any one of claims 7 to 9.

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