An output assembly and vehicle battery pack

Abstract

The utility model relates to vehicle battery pack technical field especially, it relates to an output assembly and vehicle battery pack, output assembly includes output copper row, mounting panel and sealing element, the output copper row includes input section and output section, be equipped with the perforation on the mounting panel, the output section is worn in the perforation, the mounting panel is suitable for connecting on the box of vehicle battery pack, the sealing element is covered in the output section, and sealed filling is in the clearance of output section with the mounting panel, the input section is suitable for with the battery module electricity connection of vehicle battery pack, the output section is suitable for with load electricity connection. Do not need to set up sealing structure between the output section and the box of vehicle battery pack directly, it is convenient for design and installation, and it is favorable for reducing production cost.

Description

Technical Field

[0001] This utility model relates to the field of vehicle battery pack technology, and in particular to an output component and a vehicle battery pack. Background Technology

[0002] Vehicle battery packs are core components of electric vehicles such as electric cars.

[0003] An existing vehicle battery pack includes a housing, a battery module, and an output copper busbar. The battery module is installed inside the housing, and the output copper busbar passes through the housing, with one end extending into the housing and connecting to the copper electrode of the battery module. The other end of the output copper busbar is exposed outside the housing for connection to a load, thereby providing power to the load. The output copper busbar and the housing are sealed by direct injection molding.

[0004] However, the sealing between the output copper busbar and the housing in existing vehicle battery packs requires the design of injection molds, which is a complex process. Summary of the Invention

[0005] This utility model provides an output component and a vehicle battery pack, aiming to solve the problem that the sealing between the output copper busbar and the housing in existing vehicle battery packs requires the design of injection molds and involves complex processes.

[0006] To address the aforementioned problems, this utility model provides an output component, including an output copper busbar, a mounting plate, and a sealing element. The output copper busbar includes an input section and an output section. The mounting plate has a through hole, through which the output section passes. The mounting plate is adapted to be connected to the housing of a vehicle battery pack. The sealing element is fitted onto the output section and seals and fills the gap between the output section and the mounting plate. The input section is adapted to be electrically connected to the battery module of the vehicle battery pack, and the output section is adapted to be electrically connected to a load.

[0007] Optionally, the perforation includes a large-hole section and a small-hole section, and the outer peripheral surface of the output section contacts the inner wall of the small-hole section; The diameter of the large hole section is larger than that of the small hole section. A stop step is formed between the large hole section and the small hole section. The inner wall of the large hole section, the stop step, and the output section form a sealing groove. The sealing element is located in the sealing groove.

[0008] Optionally, the seal is an epoxy resin sealing ring.

[0009] Optionally, the epoxy resin sealing ring is injection molded within the sealing groove.

[0010] Optionally, the output component further includes an insulating layer that covers the input segment.

[0011] Optionally, the insulating layer is an epoxy resin sleeve formed by heating and curing epoxy resin powder.

[0012] Optionally, one end face of the insulating layer near the mounting plate contacts one side of the mounting plate facing the input segment.

[0013] According to the output component provided in this embodiment of the utility model, the mounting plate is connected to the housing of the vehicle battery pack, the output section is inserted through the perforation, and the sealing element is sealed and filled in the gap between the output section and the mounting plate to achieve a seal between the output section and the mounting plate. Compared with the prior art, it is not necessary to set a sealing structure directly between the output section and the housing of the vehicle battery pack, which is convenient for design and installation and helps to reduce production costs.

[0014] This utility model embodiment also provides a vehicle battery pack, including a housing, a battery module and the above-mentioned output components. The housing has a mounting cavity, the input section and the battery module are located in the mounting cavity, the input section is electrically connected to the battery module, the mounting plate is detachably connected to the housing, the housing has a through hole, and the output section extends out of the housing through the through hole and the perforation in sequence, the output section is used for electrical connection with a load.

[0015] Optionally, the mounting plate is connected to the outer side of the housing.

[0016] Optionally, the mounting plate is screwed to the housing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an output component provided in an embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the output copper busbar; Figure 3 for Figure 1 A schematic diagram of the mounting plate.

[0019] The following are the reference numerals in the instruction manual's attached drawings: 1. Output copper busbar; 2. Mounting plate; 3. Seal; 4. Input section; 5. First connection hole; 6. Output section; 7. Second connection hole; 8. Bending section; 9. Insulation layer; 10. Mounting hole; 11. Through hole; 12. Large hole section; 13. Small hole section; 14. Stop step. Detailed Implementation

[0020] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figures 1 to 3 As shown, an embodiment of the present invention provides an output component, including an output copper busbar 1, a mounting plate 2, and a sealing member 3. The output copper busbar 1 includes an input section 4 and an output section 6. The mounting plate 2 is provided with a through hole 11, and the output section 6 passes through the through hole 11. The mounting plate 2 is adapted to be connected to the housing of a vehicle battery pack. The sealing member 3 is sleeved on the output section 6 and seals and fills the gap between the output section 6 and the mounting plate 2. The input section 4 is adapted to be electrically connected to the battery module of the vehicle battery pack, and the output section 6 is adapted to be electrically connected to the load.

[0023] In this embodiment, the mounting plate 2 is an epoxy resin board, which can undergo slight deformation under external force.

[0024] In this embodiment, the mounting plate 2 is applied to the vehicle battery pack.

[0025] In this embodiment, the mounting plate 2 is installed on the outer side of the vehicle battery pack housing. The mounting plate 2 is provided with mounting holes 10, and the vehicle battery pack housing is provided with threaded holes. The shank of the screw passes through the mounting hole 10 and is inserted into the threaded hole. The head of the screw abuts against the side of the mounting plate 2 facing away from the housing, and the head presses the mounting plate 2 against the housing. It should be noted that during the installation of the screw, the mounting plate 2 will undergo slight deformation, so that the side of the mounting plate 2 facing the housing is in close contact with the outer side of the housing, thereby achieving a seal between the mounting plate 2 and the housing.

[0026] In this embodiment, the input segment 4 extends into the casing of the vehicle battery pack. The input segment 4 is provided with a first connection hole 5. The battery module of the vehicle battery pack has an output tab copper busbar. The output tab copper busbar is provided with a corresponding tab hole. By inserting screws into the first connection hole 5 and the tab hole, the input segment 4 and the output tab copper busbar are in close contact, thereby achieving a conductive connection between the input segment 4 and the output tab copper busbar.

[0027] In this embodiment, the output segment 6 extends out of the vehicle battery pack housing through the through hole on the housing and the through hole 11 of the mounting plate 2. The output segment 6 is provided with a second connection hole 7. The vehicle load is connected to an input copper busbar via a cable. The input copper busbar is provided with an input hole. By inserting screws through the input hole and the second connection hole 7, the output segment 6 is made to make close contact with the input copper busbar, thereby achieving a conductive connection between the output segment 6 and the load.

[0028] In this embodiment, it is not necessary to directly install a sealing structure between the output section 6 and the vehicle battery pack housing, which facilitates design and installation and helps reduce production costs.

[0029] In one embodiment, the perforation 11 includes a large hole segment 12 and a small hole segment 13, and the outer peripheral surface of the output segment 6 contacts the inner wall of the small hole segment.

[0030] The diameter of the large hole section 12 is larger than that of the small hole section 13. A stop step 14 is formed between the large hole section 12 and the small hole section 13. The inner wall of the large hole section 12, the stop step 14 and the output section 6 form a sealing groove, and the sealing element 3 is located in the sealing groove.

[0031] In this embodiment, a stop step 14 is formed between the large hole section 12 and the small hole section 13, and the inner wall of the large hole section 12, the stop step 14 and the output section 6 form a sealing groove.

[0032] In this embodiment, the seal 3 is sealed and filled in the sealing groove, and the stop step 14 can limit the seal 3, making it easy to install the seal 3.

[0033] In one embodiment, the seal 3 is an epoxy resin sealing ring, which is injection molded in the sealing groove.

[0034] In this embodiment, when the seal 3 is installed, a fluid epoxy resin is injected into the sealing groove. After the fluid epoxy resin cures, an epoxy resin sealing ring is formed. The epoxy resin sealing ring installed through this process has its outer side in sealing contact with the inner wall of the large hole section 12, and its inner side in sealing contact with the outer peripheral surface of the output section 6, thereby improving the sealing performance of the seal 3.

[0035] In one embodiment, the output component further includes an insulating layer 9 that covers the input segment 4.

[0036] In this embodiment, the insulating layer 9 covers the input segment 4, which can prevent other electrical components inside the vehicle battery pack from coming into contact with the input segment 4.

[0037] In one embodiment, the insulating layer 9 is an epoxy resin sleeve formed by heat curing epoxy resin powder.

[0038] In this embodiment, an epoxy resin powder is first coated on the outer peripheral surface of the input segment 4, and then placed in a heating device to liquefy the powder and coat the input segment 4. After the liquefied epoxy resin is cured, an epoxy resin sleeve is formed covering the input segment 4.

[0039] In this embodiment, the gap between the input segment 4 and the insulating layer 9 can be reduced, the insulation performance of the insulating layer 9 can be improved, the connection strength between the insulating layer 9 and the input segment 4 can be improved, and the insulating layer 9 is not easy to fall off from the input segment 4.

[0040] In one embodiment, one end face of the insulating layer 9 near the mounting plate contacts one side of the mounting plate facing the input segment 4.

[0041] In this embodiment, during installation, the end of the insulating layer 9 near the output section 6 is inserted into the through hole of the vehicle battery pack housing, which can fill the gap between the input section 4 and the inner wall of the through hole, further improving the sealing between the mounting plate 2 and the housing.

[0042] In one embodiment, the input segment 4 has a bend 8, and the end of the insulating layer 9 away from the output segment 6 extends beyond the bend 8. The bend 8 makes the input segment 4 not a straight structure, so that the bend 8 can act as a stop for the insulating layer 9, further improving the stability of the insulating layer 9.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] According to the output component provided in this embodiment of the utility model, the mounting plate 2 is connected to the housing of the vehicle battery pack, the output section 6 is inserted through the through hole 11, and the sealing member 3 is sealed and filled in the gap between the output section 6 and the mounting plate 2 to achieve a seal between the output section 6 and the mounting plate 2. Compared with the prior art, it is not necessary to directly set a sealing structure between the output section 6 and the housing of the vehicle battery pack, which is convenient for design and installation and helps to reduce production costs.

[0045] In addition, one embodiment of this utility model also provides a vehicle battery pack, including a housing, a battery module (not shown) and the above-mentioned output components. The housing has a mounting cavity, and the input section 4 and the battery module are located in the mounting cavity. The input section 4 is electrically connected to the battery module. The mounting plate 2 is detachably connected to the housing. The housing has a through hole, and the output section 6 extends out of the housing through the through hole and the through hole 11 in sequence. The output section 6 is used to be electrically connected to the load.

[0046] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. An output component, characterized in that, The device includes an output copper busbar (1), a mounting plate (2), and a sealing element (3). The output copper busbar (1) includes an input section (4) and an output section (6). The mounting plate (2) has a through hole (11). The output section (6) passes through the through hole (11). The mounting plate (2) is adapted to be connected to the housing of the vehicle battery pack. The sealing element (3) is fitted onto the output section (6) and seals and fills the gap between the output section (6) and the mounting plate (2). The input section (4) is adapted to be electrically connected to the battery module of the vehicle battery pack. The output section (6) is adapted to be electrically connected to the load.

2. The output component according to claim 1, characterized in that, The perforation (11) includes a large hole section (12) and a small hole section (13), and the outer peripheral surface of the output section (6) is in contact with the inner wall of the small hole section; The diameter of the large hole section (12) is larger than that of the small hole section (13). A stop step (14) is formed between the large hole section (12) and the small hole section (13). The inner wall of the large hole section (12), the stop step (14) and the output section (6) form a sealing groove. The sealing element (3) is located in the sealing groove.

3. The output component according to claim 2, characterized in that, The sealing element (3) is an epoxy resin sealing ring.

4. The output component according to claim 3, characterized in that, The epoxy resin sealing ring is injection molded in the sealing groove.

5. The output component according to claim 1, characterized in that, The output component also includes an insulating layer (9) that covers the input segment (4).

6. The output component according to claim 5, characterized in that, The insulating layer (9) is an epoxy resin sleeve formed by heating and curing epoxy resin powder.

7. The output component according to claim 5, characterized in that, The insulating layer (9) is in contact with one end face of the mounting plate near the mounting plate and one side of the mounting plate facing the input segment (4).

8. A vehicle battery pack, characterized in that, The device includes a housing, a battery module, and an output component as described in any one of claims 1 to 7. The housing has a mounting cavity, the input segment (4) and the battery module are located in the mounting cavity, the input segment (4) is electrically connected to the battery module, the mounting plate (2) is detachably connected to the housing, the housing has a through hole, and the output segment (6) extends out of the housing through the through hole and the through hole (11) in sequence. The output segment (6) is used to electrically connect to a load.

9. The vehicle battery pack according to claim 8, characterized in that, The mounting plate (2) is connected to the outer side of the housing.

10. The vehicle battery pack according to claim 8, characterized in that, The mounting plate (2) is connected to the housing by screws.

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