Connecting assembly, battery assembly and electric automobile

Abstract

The utility model discloses a connecting assembly, a battery assembly comprising the connecting assembly and an electric vehicle comprising the battery assembly. The connecting assembly comprises a first shell and a second shell, wherein the first shell comprises a first main body and an open first accommodating part extending out of the first main body; the second shell comprises a second main body mounted on the first main body and an open second accommodating part extending from the second main body in a direction deviating from the first main body; a terminal installed between the first main body and the second main body; and the fixing piece is configured to be inserted into the first shell and the second shell from the end part, deviating from the first main body, of the first accommodating part so as to fix the connecting assembly on a paired connector.

Description

Technical Field

[0001] The utility model relates to a connection assembly, a battery assembly comprising the connection assembly, and an electric vehicle comprising the battery assembly. Background Art

[0002] A connector, or connecting component, is a device used to connect two active devices to transmit current or signals. Connectors simplify the assembly and mass production of electronic products. They are also easy to repair. If an electronic component fails, it can be quickly replaced with a connector. As technology advances, electronic products equipped with connectors can be upgraded with newer, higher-performing components, facilitating upgrades. Connectors enhance product design flexibility when designing and integrating new products and when assembling systems with electronic components. Consequently, connectors are widely used in transportation, healthcare, aerospace, military, and home appliances.

[0003] The development of connector technology has shown the following characteristics: high-speed and digital signal transmission, integration of various signal transmission types, miniaturization of product size, low-cost products, modular combination, and convenient plug-in and unplugging. In existing connector assemblies (also known as "busbar assemblies" or "busbar assemblies") for installation on mating connectors (also known as "high-voltage interface assemblies") in electric vehicle battery assemblies, screws are typically pre-installed in the connector assembly's upper cover. This upper cover is then assembled with a lower cover equipped with terminals (also known as "busbars or busbars") to form the connector assembly. The connector assembly is then pre-installed on the mating connector and secured to the mating connector by tightening the screws. If any problem with the connector assembly requires repair, the screws must be loosened to remove the entire connector assembly from the mating connector, and then the connector assembly must be disassembled to replace parts. This makes the operation very cumbersome, especially when multiple connector assemblies are installed on the mating connector and many mating connectors are used, increasing the time and labor costs of repair.

[0004] Therefore, there is an urgent need to propose a connection assembly with an improved structure to simplify the installation of the connection assembly and reduce the time cost and labor cost of subsequent maintenance. Utility Model Content

[0005] The utility model aims to provide a connection component which is easy to install and repair.

[0006] According to one aspect of the present invention, a connecting assembly is provided, comprising: a first shell, comprising a first main body and an open first accommodating portion extending from the first main body; a second shell, comprising a second main body mounted on the first main body and an open second accommodating portion extending from the second main body in a direction away from the first main body; a terminal mounted between the first main body and the second main body; and a fixing member configured to be inserted into the first shell and the second shell from an end of the first accommodating portion away from the first main body to fix the connecting assembly to a mating connector.

[0007] According to one aspect of the present invention, the first accommodating portion is provided with a pre-installed portion on its inner wall, and the fixing piece is provided with a matching pre-installed portion on its outer wall, and the matching pre-installed portion is configured to be connected with the pre-installed portion when the fixing piece is inserted into the first accommodating portion to position the fixing piece in a pre-installed position.

[0008] According to one aspect of the present invention, the pre-installed portion is configured as an elastic arm, a protrusion is provided on the free end of the elastic arm pointing to the second accommodating portion, and the matching pre-installed portion is configured as a groove matching the shape of the protrusion.

[0009] According to one aspect of the present invention, the fixing member includes: a head portion provided with the groove along the circumferential direction and a screw extending from the head portion for being threadedly connected to the mating connector.

[0010] According to one aspect of the present invention, the first main body includes: a first horizontal portion extending in the horizontal direction and a first vertical portion extending in the vertical direction, and the first accommodating portion extends from a side of the first horizontal portion away from the second main body in the vertical direction; and the second main body includes: a second horizontal portion extending in the horizontal direction and a second vertical portion extending in the vertical direction, and the second accommodating portion extends from a side of the second horizontal portion away from the first main body in the vertical direction.

[0011] According to one aspect of the present invention, the opposite sides of the first vertical portion are bent inwardly to form a slide rail with a "L"-shaped cross-section, and the opposite sides of the second vertical portion are bent outwardly to form a slide groove with an "L"-shaped cross-section, and the first body slides along the slide groove through the slide rail and is seated on the second body.

[0012] According to one aspect of the present invention, the first horizontal portion is provided with a downwardly protruding connecting ring on its side wall, and the second horizontal portion is provided with a protruding portion on its side wall. When the first main body is seated on the second main body, the connecting ring is snap-connected with the protruding portion.

[0013] According to one aspect of the present invention, the terminal includes: a horizontal portion of the terminal extending in a horizontal direction and a vertical portion of the terminal extending in a vertical direction, the horizontal portion of the terminal is located between the first horizontal portion and the second horizontal portion, the vertical portion of the terminal is located between the first vertical portion and the second vertical portion, and the horizontal portion of the terminal is provided with a through hole capable of allowing the screw to pass through it.

[0014] According to one aspect of the present invention, the connecting assembly also includes: a conductive sleeve, which can be extended through by the screw and includes: one end that is inserted into the through hole in a shape-fitting manner and is coplanar with the horizontal portion of the terminal; the other end that is inserted into the second accommodating portion in a shape-fitting manner; and a flange located between the one end and the other end.

[0015] According to one aspect of the present invention, a step portion is formed at the connection between the second accommodating portion and the second horizontal portion, so that the flange abuts against the step portion to support the horizontal portion of the terminal; and the end portion of the first accommodating portion connected to the first horizontal portion is arranged to be close to the side of the terminal horizontal portion away from the flange to limit the displacement of the terminal.

[0016] According to one aspect of the present invention, the second horizontal portion is further provided with a mounting ring below its side wall, so that when the connecting assembly is inserted into the interface of the mating connector, it is snap-connected with a protrusion provided on the outer wall of the interface.

[0017] According to one aspect of the present invention, the fixing member is configured to be disengaged from the pre-installed position under the action of an external force to be threadedly connected to the interface after the connecting assembly is snap-connected with the mating connector.

[0018] According to another aspect of the present invention, a battery assembly is provided, comprising the connection assembly according to any one of the above aspects.

[0019] According to another aspect of the present invention, an electric vehicle is provided, comprising the battery assembly according to the above aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate the present invention and, together with the description, further serve to explain the principles of the invention and enable one skilled in the relevant art to make and use the embodiments described herein.

[0021] Figure 1 is a perspective view of a connection assembly according to an embodiment of the present invention mounted on a mating connector;

[0022] Figure 2 yes Figure 1a perspective view of a separate mating connector in FIG;

[0023] Figure 3 yes Figure 1 A perspective view of a separate connected component in FIG;

[0024] Figure 4 yes Figure 3 An exploded view of the connection assembly in FIG. 1 , wherein the fixing members are not shown for ease of illustration;

[0025] Figure 5 yes Figure 4 A perspective view of the terminal and the conductive sleeve being installed on the second housing;

[0026] Figure 6 It shows Figure 3 A perspective view of the fixing member to be installed on the connecting component;

[0027] Figure 7 yes Figure 3 A perspective view of a separate first housing of the connection assembly;

[0028] Figure 8 It is along Figure 3 A cross-sectional view of the connection assembly taken along line VIII-VIII in FIG.

[0029] Figure 9 yes Figure 8 An enlarged view of the portion surrounded by the closed line IX in FIG.

[0030] The features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which like reference numerals identify corresponding elements throughout. In the accompanying drawings, like reference numerals generally indicate identical, functionally similar, and / or structurally similar elements. Unless otherwise indicated, the drawings provided throughout the application should not be construed as being drawn to scale. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0032] However, it should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. In the detailed description that follows, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present invention. However, it is apparent that one or more embodiments can be implemented without these specific details. In addition, in the following description, descriptions of known technologies are omitted to avoid unnecessary confusion in the concepts of the present invention.

[0033] The terms used herein are only for describing specific embodiments and are not intended to limit the present invention. The term "comprising" used herein indicates the existence of features, steps, and operations, but does not exclude the existence or addition of one or more other features.

[0034] When expressions such as "at least one of A, B and C, etc." are used, they should generally be interpreted in accordance with the meaning of the expression commonly understood by those skilled in the art (for example, "a system having at least one of A, B and C" should include but is not limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.).

[0035] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0036] See also Figures 1 to 9 The utility model discloses a connection assembly 1000, a battery assembly (not shown in the figure) including the connection assembly 1000, and an electric vehicle (not shown in the figure) including the battery assembly.

[0037] See also Figures 3 to 8 The connection assembly 1000 includes: a first shell 100, a second shell 200, a terminal 300 and a fixing member 400. The first shell 100 includes a first main body 110 and an open cylindrical first accommodating portion 120 extending from the first main body 110. The second shell 200 includes a second main body 210 mounted on the first main body 110 and an open cylindrical second accommodating portion 220 extending from the second main body 210 in a direction away from the first main body 110. The terminal 300 is installed between the first main body 110 and the second main body 210. The fixing member 400 is configured to be inserted into the first shell 100 and the second shell 200 from the end 122 of the first accommodating portion 120 away from the first main body 110 to fix the connection assembly 1000 to the mating connector 2000 (see Figure 1 and 2), in this way, when the connection component 1000 installed on the mating connector 2000 has a problem or needs to be repaired, the fixing member 400 can first be taken out of the connection component 1000 through the end 122 of the first accommodating portion 120 facing away from the first main body 110, and then the first shell 100 can be removed from the second shell 200 installed on the mating connector 2000 to replace or repair the relevant parts in the connection component 1000, without having to remove the entire connection component 1000 from the mating connector 2000 to remove the fixing member 400 and disassemble the second shell 200 and the first shell 100 to replace or repair the relevant parts in the connection component 1000, which makes the operation very simple and reduces the time cost and labor cost of maintenance.

[0038] See also Figures 7 to 9 The first receiving portion 120 is provided with a pre-installed portion 121 on its inner wall, and the fixing member 400 is provided with a matching pre-installed portion 401 on its outer wall. The matching pre-installed portion 401 is configured to connect with the pre-installed portion 121 when the fixing member 400 is inserted into the first receiving portion 120, so as to position the fixing member 400 in the pre-installed position (see Figure 8 According to one embodiment of the present invention, the pre-installed portion 121 is configured as an elastic arm, and a protrusion 1212 is provided on the free end 1211 of the elastic arm pointing to the second receiving portion 220, and the matching pre-installed portion 401 is configured as a groove that matches the shape of the protrusion (see Figure 9 The fixing member 400 includes a head 410 provided with the groove along the circumference thereof and a screw 420 extending from the head 410 for being threadedly connected to the mating connector 2000. In the pre-installed position, the head 410 of the fixing member 400 is positioned at the end 122 of the first body 110 and is spaced apart from the terminal 300 (see FIG. Figure 8 The head 410 includes a conductive portion and a first insulating portion 402 provided on the conductive portion, and a groove is provided on the first insulating portion 402 (see Figure 6 、 8 and 9), the screw 420 is integrally formed with the conductive portion of the head 410 and a second insulating portion 430 is provided at the end of the screw 420. The first insulating portion 402 and the second insulating portion 430 are provided to facilitate the user to hold the fixing member 400 during operation to ensure the user's personal safety.

[0039] See also Figure 1 、 3, 4 to 7, the first body 110 includes: a first horizontal portion 111 extending along a horizontal direction D1 (D1) and a first vertical portion 112 extending along a vertical direction D2 (D2), and the first receiving portion 120 extends along the vertical direction D2 from a side of the first horizontal portion 111 facing away from the second body 210. The second body 210 includes: a second horizontal portion 211 extending along the horizontal direction D1 and a second vertical portion 212 extending along the vertical direction D2, and the second receiving portion 220 extends along the vertical direction D2 from a side of the second horizontal portion 211 facing away from the first body 110. The opposite side of the first vertical portion 112 is bent inward to form a slide rail 1121 with a "L"-shaped cross-section, and the opposite side of the second vertical portion 212 is bent outward to form a slide groove 2121 with an "L"-shaped cross-section. The first main body 110 slides along the slide groove 2121 through the slide rail 1121 and is seated on the second main body 210.

[0040] The first horizontal portion 111 is provided with a downwardly protruding connecting ring 1112 on its side wall 1111, and the second horizontal portion 211 is provided with a protruding portion 2112 on its side wall 2111. When the first body 110 is seated on the second body 210, the connecting ring 1112 is snap-connected with the protruding portion 2112 (see Figures 4 to 6 ).

[0041] See also Figure 4 and 5 The terminal 300 includes: a terminal horizontal portion 310 extending along the horizontal direction D1 and a terminal vertical portion 320 extending along the vertical direction D2, the terminal horizontal portion 310 is located between the first horizontal portion 111 and the second horizontal portion 211, the terminal vertical portion 320 is located between the first vertical portion 112 and the second vertical portion 212, and the terminal horizontal portion 310 is provided with a through hole 311 capable of allowing the screw 420 to pass therethrough.

[0042] The connection assembly 1000 further includes: a conductive sleeve 500 (see Figure 4 、 5 and 8). The conductive sleeve 500 can be extended through by the screw 420 and includes: an end 510 that is inserted into the through hole 311 and is coplanar with the terminal horizontal portion 310 (see Figure 5 and 8 ); the other end 520 is inserted into the second receiving portion 220 in a form-fitting manner (see Figure 8 and a flange 530 located between the one end 510 and the other end 520. When the connection assembly 1000 is fixed to the mating connector 2000, the terminal 300 is electrically connected to a corresponding component (not shown) in the mating connector 2000 through the conductive sleeve 500.

[0043] See also Figure 8 The step portion 221 is formed at the connection between the second receiving portion 220 and the second horizontal portion 211, so that the flange 530 abuts against the step portion 221 to support the terminal horizontal portion 310. The end portion 123 of the first receiving portion 120 connected to the first horizontal portion 111 (see Figure 8 ) is arranged close to the side of the terminal horizontal portion 310 away from the flange 530 to limit the displacement of the terminal 300.

[0044] See also Figures 3 to 6 The second horizontal portion 211 is further provided with a mounting ring 2113 below its side wall, so that the cylindrical interface 2100 (see Figure 2 ) is snap-fitted to the protrusion 2110 provided on the outer wall of the interface 2100. The fixing member 400 is configured to be released from the pre-assembled position under the action of an external force after the connecting assembly 1000 is snap-fitted to the mating connector 2000 via the mounting ring 2113, and then be threadedly connected to the interface 2100, thereby fixing the connecting assembly 1000 to the interface 2100.

[0045] The embodiments of the present invention have been described in detail with reference to the accompanying drawings. It should be noted that any implementations not depicted or described in the drawings or the main text of the specification are known to those skilled in the art and are not described in detail. Furthermore, the definitions of the various components described above are not limited to the specific structures, shapes, or methods described in the embodiments; those skilled in the art may easily modify or replace them.

[0046] It should also be noted that, in the specific embodiments of the present invention, unless otherwise indicated, the numerical parameters in this specification and the appended claims are approximate values and can vary depending on the desired properties obtained through the content of the present invention. Specifically, all numbers used in the specification and claims to express the size, range conditions, etc. of the composition should be understood to be modified by the term "about" in all cases. Generally, the meaning of the expression is to include the variation of the specific quantity by ±10% in some embodiments, ±5% in some embodiments, ±1% in some embodiments, and ±0.5% in some embodiments.

[0047] Those skilled in the art will appreciate that various combinations and / or combinations of features described in the various embodiments and / or claims of the present invention may be employed, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, various combinations and / or combinations of features described in the various embodiments and / or claims of the present invention may be employed without departing from the spirit and teachings of the present invention. All such combinations and / or combinations fall within the scope of the present invention.

[0048] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A connection assembly, characterized in that: include: A first housing including a first main body and an open first receiving portion extending from the first main body; a second housing comprising a second body mounted on the first body and an open second receiving portion extending from the second body in a direction away from the first body; a terminal installed between the first body and the second body; and A fixing member is configured to be inserted into the first housing and the second housing from an end portion of the first receiving portion facing away from the first main body, so as to fix the connection assembly to the mating connector.

2. The connection assembly according to claim 1, characterized in that The first accommodating portion is provided with a pre-installed portion on its inner wall, and the fixing piece is provided with a matching pre-installed portion on its outer wall. The matching pre-installed portion is configured to connect with the pre-installed portion when the fixing piece is inserted into the first accommodating portion to position the fixing piece in a pre-installed position.

3. The connection assembly according to claim 2, characterized in that The pre-installed portion is configured as an elastic arm, a protrusion is provided on a free end of the elastic arm pointing to the second receiving portion, and the matching pre-installed portion is configured as a groove that matches the shape of the protrusion.

4. The connection assembly according to claim 3, characterized in that The fixing member includes a head portion provided with the groove along a circumferential direction and a screw rod extending from the head portion for being threadedly connected to the mating connector.

5. The connection assembly according to claim 4, characterized in that The first body includes: a first horizontal portion extending in a horizontal direction and a first vertical portion extending in a vertical direction, the first receiving portion extending in the vertical direction from a side of the first horizontal portion away from the second body; and The second body includes a second horizontal portion extending in a horizontal direction and a second vertical portion extending in a vertical direction, and the second receiving portion extends in the vertical direction from a side of the second horizontal portion facing away from the first body.

6. The connection assembly according to claim 5, characterized in that The opposite sides of the first vertical portion are bent inward to form a slide rail with a "L"-shaped cross-section, and the opposite sides of the second vertical portion are bent outward to form a slide groove with an "L"-shaped cross-section. The first body slides along the slide groove through the slide rail and is seated on the second body.

7. The connection assembly according to claim 6, characterized in that The first horizontal portion is provided with a downwardly protruding connecting ring on its side wall, and the second horizontal portion is provided with a protruding portion on its side wall. When the first body is seated on the second body, the connecting ring is snap-connected with the protruding portion.

8. The connection assembly according to any one of claims 5 to 7, characterized in that The terminal includes: a horizontal portion of the terminal extending in a horizontal direction and a vertical portion of the terminal extending in a vertical direction, the horizontal portion of the terminal is located between the first horizontal portion and the second horizontal portion, the vertical portion of the terminal is located between the first vertical portion and the second vertical portion, and the horizontal portion of the terminal is provided with a through hole capable of allowing the screw to pass therethrough.

9. The connection assembly according to claim 8, characterized in that Also includes: A conductive sleeve, capable of being extended through by the screw and comprising: one end which is inserted into the through hole in a shape-fitting manner and is coplanar with the horizontal portion of the terminal; the other end which is inserted into the second accommodation portion in a shape-fitting manner; and a flange located between the one end and the other end.

10. The connection assembly according to claim 9, characterized in that a step portion formed at a connection between the second receiving portion and the second horizontal portion, so that the flange abuts against the step portion to support the terminal horizontal portion; as well as An end portion of the first accommodation portion connected to the first horizontal portion is disposed close to a side of the terminal horizontal portion facing away from the flange to restrict displacement of the terminal.

11. The connection assembly according to any one of claims 5 to 7 and 9 to 10, characterized in that The second horizontal portion is further provided with a mounting ring below its side wall, so that when the connecting assembly is inserted into the interface of the mating connector, it is snap-connected with a protrusion provided on the outer wall of the interface.

12. The connection assembly according to claim 11, characterized in that The fixing member is configured to be released from the pre-installed position under the action of an external force to be threadedly connected to the interface after the connection assembly is snap-connected with the mating connector.

13. A battery assembly, characterized in that: Comprising a connection assembly according to any one of claims 1 to 12.

14. An electric vehicle, characterized in that: Comprising the battery assembly according to claim 13.

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