CN218769934U

CN218769934U - Battery upper cover, battery and vehicle

Info

Publication number: CN218769934U
Application number: CN202222828875.3U
Authority: CN
Inventors: 王睿
Original assignee: Beijing Chehejia Automobile Technology Co Ltd
Current assignee: Beijing Chehejia Automobile Technology Co Ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-03-28
Anticipated expiration: 2032-10-26

Abstract

The application discloses battery upper cover, battery and vehicle, battery upper cover include upper cover main part and adaptor, and the upper cover main part has and predetermines thickness, and the adaptor is moulded plastics in the upper cover main part along the thickness direction, and the adaptor has first end and second end, and first end extends to a side surface formation grafting portion of upper cover main part, and the second end stretches out the opposite side surface setting of upper cover main part. Therefore, on the one hand, the adapter is formed by injection molding in the upper cover of the battery, and the terminal of the wiring harness is plugged in the plugging part on one side surface of the upper cover of the battery, so that the electric connection between the wiring harness and the internal structure of the battery can be realized through the adapter, and the structure of the upper cover of the battery is simplified. On the other hand, the structure requirement on the wire harness end can be reduced through the plug part, for example, the plug part can be set to be a socket, and the wire harness end is set to be a stamped terminal which is simple in structure, light in sheet shape and cheap, so that the purposes of saving cost and reducing weight are achieved.

Description

Battery upper cover, battery and vehicle

Technical Field

The application relates to the technical field of auto-parts, in particular to a battery upper cover, a battery and a vehicle.

Background

Energy conservation and emission reduction are the key points of sustainable development of the automobile industry, and electric vehicles become important components of the sustainable development of the automobile industry due to the advantages of energy conservation and environmental protection. For electric vehicles, battery technology is an important factor in its development.

When the battery of the vehicle relates to an electric appliance in the after-sale maintenance process, the wire harnesses of the anode and the cathode of the battery need to be disassembled and assembled. The positive pole and the negative pole of the existing battery are generally set to be tapered poles, the wire harness terminal is set to be an annular casting clamping terminal, and the disassembly and the assembly of the wire harness are realized by screwing a nut on the annular clamping terminal. However, the fitting structure of the tapered pole and the annular cast-in-place terminal is complicated.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a battery upper cover, a battery and a vehicle, which simplify the structure of the battery, reduce the structural requirement on a wiring harness end and achieve the purposes of saving cost and reducing weight.

A first aspect of an embodiment of the present application provides a battery, including: an upper cover main body having a predetermined thickness; the adaptor is moulded plastics in the upper cover main part along thickness direction, and the adaptor has first end and second end, and the first end extends to one side surface formation grafting portion of upper cover main part, and the second end stretches out the opposite side surface setting of upper cover main part.

According to one aspect of the application, the adapter includes a torsion resistant section having a non-circular cross-section in a thickness direction.

According to one aspect of the application, the cross-sectional edge at the torsion resistant section is serrated.

According to one aspect of the application, the adapter further comprises two or more anti-torsion sections, the two or more anti-torsion sections are arranged at intervals along the thickness direction and are connected with each other through the connecting sections, and the anti-torsion sections and the connecting sections are different in cross-sectional shape and/or cross-sectional area.

A second aspect of embodiments of the present application provides a battery, including: a battery upper cover, such as the battery upper cover in the above embodiments; one end of the lower shell is provided with an opening, and the upper cover of the battery is buckled on the opening side of the lower shell and forms an accommodating cavity with the lower shell; the confluence component is arranged in the accommodating cavity, and the second end of the adapter piece extends into the accommodating cavity and is connected with the confluence component.

According to one aspect of the application, the battery further includes a fastener passing through the lower housing and the bus bar member and connected to the second end of the adaptor.

According to an aspect of the application, the lower casing includes the lateral wall and by the turn-ups of the outside formation that extends of at least partial edge of lateral wall, the trompil that is linked together with holding the chamber is seted up to the turn-ups, the second end range upon range of setting up on the turn-ups of part and adaptor that converges, the fastener is worn to establish the trompil and is converged the part and connect in the second end.

According to an aspect of the application, the trompil has the predetermined degree of depth, and the fastener stretches into in the trompil, and the battery still includes the sealing member, and the sealing member stifled one end of locating the trompil and deviating from and holding the chamber.

According to one aspect of the application, the trompil is provided with screens portion from the one end that holds the chamber, and the sealing member part inserts in the trompil and with screens looks joint.

A third aspect of the embodiments of the present application provides a vehicle including the battery in the above embodiments.

The battery upper cover disclosed in the embodiment of the application, including upper cover main part and adaptor, the adaptor is moulded plastics in the upper cover main part, and the first end of adaptor extends to one side surface of upper cover main part and forms grafting portion, and the second end stretches out the opposite side surface setting of upper cover main part, can connect battery inner structure through the second end of adaptor. Therefore, on the one hand, the adapter is formed by injection molding in the upper cover of the battery, and the terminal of the wiring harness is plugged in the plugging part on one side surface of the upper cover of the battery, so that the electric connection between the wiring harness and the internal structure of the battery can be realized through the adapter, and the structure of the upper cover of the battery is simplified. On the other hand, the structure requirement on the wire harness end can be reduced through the plug part, for example, the plug part can be set to be a socket, and the wire harness end is set to be a stamped terminal which is simple in structure, light in sheet shape and cheap, so that the purposes of saving cost and reducing weight are achieved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

FIG. 1 is a schematic diagram of a battery provided in accordance with an embodiment of the present application;

FIG. 2 is a schematic structural view of an adapter provided according to an embodiment of the present application;

FIG. 3 is an exploded view of a battery provided in accordance with one embodiment of the present application;

FIG. 4 is a cross-sectional view of a battery provided in accordance with one embodiment of the present application;

fig. 5 is a cross-sectional view of a localized area of a battery provided in accordance with an embodiment of the present application.

In the drawings:

1-an upper cover main body; 2-an adaptor; 21-a first end; 22-a second end; 3-a lower shell; 31-a side wall; 32-flanging; 321-a main body part; 322-a boss; 33-a clamping part; 4-a bus member; 5-a fastener; 6-a seal;

s-a containment chamber; a1-torsion resistant section; a2-a connecting segment; b1 — a first region; b2-a second region;

k1-opening a hole; k2 — first connection hole; k3-second connection hole.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

It should be noted that technical terms or scientific terms used in the embodiments of the present application should be understood as having a common meaning as understood by those skilled in the art to which the embodiments of the present application belong, unless otherwise specified.

Furthermore, the technical terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

In the description of the embodiments of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

In the process of after-sale maintenance of a battery of a traditional vehicle, when an electric appliance is involved, the connection between the anode and the cathode of the battery and a wire harness needs to be disconnected to realize low-voltage power failure of the vehicle. The positive and negative poles of the existing battery are often set to be conical poles, and the clamping is realized by screwing up a nut on an annular casting clamping terminal of a wire harness.

The applicant finds that at present, batteries with built-in controllers gradually appear, and the batteries can realize the power failure of the vehicle by matching with certain strategies without disassembling and assembling wiring harnesses. Therefore, the reliability requirement for repeated attachment and detachment of the wire harness is reduced, so that the cost and weight can be reduced by designing a battery with a simpler structure, and the battery upper cover, the battery and the vehicle according to the embodiment of the present application will be described in detail with reference to fig. 1 to 5.

Referring to fig. 1 to 3, an embodiment of the present application provides a battery upper cover, including an upper cover main body 1 and an adaptor 2, where the upper cover main body 1 has a predetermined thickness, the adaptor 2 is injection-molded in the upper cover main body 1 along a thickness direction, the adaptor 2 has a first end 21 and a second end 22, the first end 21 extends to a side surface of the upper cover main body 1 to form a plug-in portion, and the second end 22 extends out of another side surface of the upper cover main body 1.

The battery upper cover that this application embodiment discloses, adaptor 2 moulds plastics in upper cover main part 1, and the first end 21 of adaptor 2 extends to one side surface formation grafting portion of upper cover main part 1, and the second end 22 stretches out the opposite side surface setting of upper cover main part 1, can connect battery inner structure through the second end 22 of adaptor 2. Therefore, on the one hand, by injection molding the adaptor 2 in the battery upper cover 1, the terminal of the wire harness is inserted into the insertion part on one side surface of the battery upper cover, so that the wire harness can be electrically connected with the internal structure of the battery through the adaptor 2, thereby simplifying the structure of the battery upper cover. On the other hand, the structure requirement on the wire harness end can be reduced through the plug part, for example, the plug part can be set to be a socket, and the wire harness end is set to be a stamped terminal which is simple in structure, light in sheet shape and cheap, so that the purposes of saving cost and reducing weight are achieved.

Since the terminal of the wire harness needs to be inserted into the first end 21 of the adaptor 2, the reliability of injection molding of the adaptor 2 in the upper cover body 1 needs to be ensured to prevent the adaptor 2 from being separated from the upper cover body 1. Referring to fig. 2 and 3, in some alternative embodiments, the adaptor 2 includes a torsion resistant section A1, and the torsion resistant section A1 has a non-circular cross section in the thickness direction. Since the adaptor 2 may be subjected to a twisting force when the wiring harness is connected to the end of the adaptor 2, at least a partial region of the adaptor 2 may be provided as the anti-twisting section A1, and a cross section of the anti-twisting section A1 may be non-circular, so as to improve anti-twisting ability of the adaptor 2 after being injection molded on the cover main body 1.

It can be understood that the section of the anti-torsion section A1 is non-circular, including that the section of the anti-torsion section A1 is polygonal to limit the torsion of the adaptor 2 relative to the upper cover main body 1 through corners, or the periphery of the anti-torsion section A1 is provided with a concave-convex structure, so that the section of the anti-torsion section A1 is irregular, and the anti-torsion capability of the adaptor 2 after being injection-molded on the upper cover main body 1 is improved.

Optionally, the cross-sectional edge of the torsion resistant section A1 is serrated. For example, the anti-twisting section A1 may be formed by disposing concave-convex lines around the outer circumference of at least a partial region of the adaptor 2, so that the cross-sectional edge of the anti-twisting section A1 is serrated, thereby improving the anti-twisting capability of the adaptor 2 after being injection molded on the upper cover body 1.

Referring to fig. 2 and 3, in addition to considering the torsion force applied to the adaptor 2, the adaptor 2 needs to be restricted from displacing in the thickness direction, in some optional embodiments, the adaptor 2 further includes a connecting section A2, the number of the torsion resistant sections A1 is two or more, the two or more torsion resistant sections A1 are arranged at intervals in the thickness direction, and the two adjacent torsion resistant sections A1 are connected by the connecting section A2, and the torsion resistant sections A1 and the connecting section A2 have different cross-sectional shapes and/or cross-sectional areas, so that when the adaptor 2 is injection-molded to the upper cover body 1, the displacement of the adaptor 2 in the thickness direction can be restricted by the position of the sudden change of the cross-sectional shapes and/or cross-sectional areas of the torsion resistant sections A1 and the connecting sections A2, so as to further improve the reliability of the adaptor 2 injection-molded to the upper cover body 1.

Alternatively, when the concave-convex lines are arranged around the outer circumference of the adaptor 2, a region provided with the concave-convex lines may be defined as the torsion resistant section A1, and a region not provided with the concave-convex lines may be defined as the connection section A2. Wherein, the quantity of unsmooth line is one, perhaps, the quantity of unsmooth line is more than two, sets up along the extending direction interval through making multichannel concave-convex structure to form a plurality of antitorque sections A1 and the linkage segment A2 that set up in turn, with through a plurality of antitorque sections A1 and linkage segment A2 restriction adaptor 2 along the displacement of extending direction, guarantee that adaptor 2 moulds plastics in the reliability of upper cover main part 1.

Referring to fig. 1 to 5, an embodiment of the present application further provides a battery, which includes a battery upper cover, a battery lower cover 3 and a bus member 4, where the battery upper cover is the battery upper cover in the above embodiment, one end of the battery lower cover 3 is provided with an opening, the battery upper cover is buckled on the opening side of the battery lower cover 3 and forms an accommodating cavity S with the battery lower cover 3, the bus member 4 is disposed in the accommodating cavity S, and a second end 22 of the adaptor 2 extends into the accommodating cavity S and is connected to the bus member 4.

The accommodating cavity S is used for accommodating a battery module, and a plurality of battery cells in the battery module are electrically connected through the bus member 4, so that the second end 22 of the adapter 2 is connected with the bus member 4, so that when a terminal of a wire harness is plugged in the plugging part of the adapter 2, the wire harness can be electrically connected with the battery cells through the adapter 2 and the bus member 4. In addition, through moulding plastics adaptor 2 in upper cover main part 1, can adjust the position of part 4 that converges according to adaptor 2 to make when carrying out the assembly of battery, to closing mutually through casing 3 and upper cover main part 1 down, can realize the counterpoint of adaptor 2 and part 4 that converges, the adaptor 2 of being more convenient for and the connection of part 4 that converges improve the assembly efficiency and the reliability of battery.

To connect the second end 22 of the adaptor 2 to the bus bar 4, the battery further includes a fastener 5 in some optional embodiments, in which the fastener 5 penetrates through the lower housing 3 and the bus bar 4 and is connected to the second end 22 of the adaptor 2, since the bus bar 4 is disposed in the accommodating cavity S. In order to facilitate the arrangement of the fastening member 5, the bus bar member 4 may be extended to the inner wall surface of the lower housing 3, and the second end 22 of the adaptor 2 may be arranged on the side of the bus bar member 4 departing from the inner wall surface, so that the connection between the bus bar member 4 and the adaptor 2 may be realized by inserting the fastening member 5 through the lower housing 3 and the bus bar member 4 and connecting to the adaptor 2.

In some alternative embodiments, the second end 22 is provided as an internal thread structure and the fastener 5 is provided as a bolt. The second end 22 of the adapter 2 is provided with an internal thread structure, so that the confluence component 4 can be clamped between the second end 22 of the adapter 2 and the inner wall surface of the lower shell 3, and the fastening piece 5 is screwed in the internal thread structure of the second end 22, so that the adapter 2 and the confluence component 4 are reliably connected.

It can be understood that, considering the thickness of the bus bar 4 is small, the bus bar 4 may be provided with a light hole, and the fastening member 5 is inserted into the light hole of the bus bar 4 and connected with the second end 22 to connect the bus bar 4 and the adaptor 2. When increasing the thickness of the bus bar 4, it is also conceivable to provide a threaded hole in the bus bar 4, so that the fastening element 5 penetrates the lower housing 3 and connects the bus bar 4 and the second end 22 of the adapter 2.

Alternatively, the adaptor 2 may be configured as a bidirectional internal thread screw, that is, the first end 21 of the adaptor 2 is configured as an internal thread structure, the insertion portion forms a socket having the internal thread structure, and the terminal of the wire harness may be provided with an external thread, so that the insertion portion and the terminal of the wire harness are connected by a thread to ensure the reliability of the insertion. Through directly setting up adaptor 2 to two-way internal thread screw rod, can further simplify the structure of battery upper cover to practice thrift the cost.

Referring to fig. 2 to 5, to facilitate the installation of the fastening member 5, in some alternative embodiments, the lower housing 3 includes a side wall 31 and a flange 32 formed by extending at least a portion of an edge of the side wall 31 outward, the flange 32 defines an opening K1 communicating with the accommodating cavity S, the bus member 4 and the second end 22 of the adaptor 2 are stacked on the flange 32, and the fastening member 5 penetrates through the opening K1 and the bus member 4 and connects the second end 22. By providing the flange 32 on the lower housing 3 and stacking the bus bar 4 and the adaptor 2 on the flange 32, it is more convenient to provide the opening K1 thereon to connect the bus bar 4 and the second end 22 by the fastening member 5.

Optionally, because casing 3 includes turn-ups 32 down, for realizing the connection of upper cover main part 1 and casing 3 down, turn-ups 32 includes first region B1 and surrounds the second region B2 that sets up in first region B1's periphery, trompil K1 sets up to first region B1, the second region B2 of turn-ups 32 still is provided with first connecting hole K2, upper cover main part 1 corresponds first connecting hole K2 and is provided with second connecting hole K3, through being relative to first connecting hole K2 and second connecting hole K3, come when guaranteeing that fastener 5 connects confluence part 4 and adaptor 2, realize upper cover main part 1 and casing 3's cooperation and connect down.

It can be understood that, by detachably connecting the upper cover main body 1 to the lower housing 3 and detachably connecting the fastening member 5 to the second end 22 of the adaptor 2, when the battery is repaired after sale, the internal structure of the battery can be repaired by detaching the upper cover main body 1, thereby improving the safety of the battery during the use process.

Because the battery divide into lower casing 3 and battery upper cover, in order to guarantee the leakproofness of battery, in some optional embodiments, trompil K1 has the predetermined degree of depth, and fastener 5 stretches into in the trompil K1, and the battery still includes sealing member 6, and sealing member 6 blocks up the one end of locating trompil K1 and deviating from and hold chamber S. Through making adaptor 2 mould plastics in upper cover main part 1 to locate trompil K1 through sealing member 6 stifled, realized holding the airtight of chamber S promptly, guarantee the dustproof and waterproof performance of battery, thereby improve the IP grade (Ingress Protection) of battery, so that the battery realizes IP 67' S Protection grade, guarantees the security of battery in the use.

In order to provide the hole K1 with a predetermined depth on the flange 32, in some alternative embodiments, the flange 32 may include a main body 321 and a protrusion 322 protruding from the main body 321 toward the upper cover body 1, and the hole K1 penetrates through the protrusion 322. By providing the opening K1 on the projection 322, the thickness of the lower case 3 is prevented from being increased to reduce the weight of the battery. Meanwhile, the depth of the hole K1 can be adjusted by adjusting the protruding size of the protruding portion 322 relative to the main body portion 321, so that the fastener 5 can be more conveniently inserted into the hole K1. Meanwhile, the junction part 4 can be provided with a bending part which is lapped on the protruding part 322, and the position of the protruding part 322 can correspond to the second end 22 of the adaptor 2, so that the fastener 5 can be more conveniently connected with the junction part 4 and the adaptor 2 through the opening K1 arranged on the protruding part 322, and the structure of the battery is simplified.

Referring to fig. 2 to 5, in order to ensure the tightness of the sealing member 6 blocking the opening K1, in some alternative embodiments, an end of the opening K1 facing away from the accommodating cavity S is provided with a clamping portion 33, and the sealing member 6 is partially inserted into the opening K1 and clamped with the clamping portion 33. Through set up screens portion 33 at trompil K1, deviate from in the trompil K1 through restriction sealing member 6, guarantee the reliability of the shutoff of sealing member 6 to guarantee the dustproof and waterproof performance of battery.

Optionally, screens portion 33 can set up to the bead that the protrusion set up in trompil K1's hole wall face, and sealing member 6 can set up to the plug, and be provided with on the plug with bead assorted recess to through the bead joint in the recess, limit sealing member 6's position, deviate from in order to avoid sealing member 6 from trompil K1, simultaneously through plug shutoff trompil K1, in order to guarantee the dustproof and waterproof ability of battery. In addition, for the leakproofness of further improvement battery, sealed glue or sealing washer etc. can also set up between upper cover main part 1 and the lower casing 3 to further guarantee the dustproof and waterproof performance of battery.

The embodiment of the application also provides a vehicle, the vehicle comprises the battery in the embodiment, and the vehicle can be a pure electric vehicle, a hybrid electric vehicle or a range-extended vehicle and the like. Since the vehicle includes the battery, the vehicle includes the effect of the battery in the above-described embodiment, the insertion portion of the battery may be configured as the insertion opening, and the harness end is changed from the cast ring terminal to a stamped terminal having a simple structure, a light sheet shape, and a low price, so as to form a matching structure of the insertion opening and the stamped terminal, thereby achieving the purposes of saving cost and reducing weight.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

Claims

1. A battery top cover, comprising:

an upper cover body (1) having a predetermined thickness;

adaptor (2), mould plastics along thickness direction in upper cover main part (1), adaptor (2) have first end (21) and second end (22), first end (21) extend to one side surface of upper cover main part (1) forms grafting portion, second end (22) stretch out the opposite side surface setting of upper cover main part (1).

2. The battery upper cover according to claim 1, characterized in that the adaptor (2) comprises a torsion resistant section (A1), the torsion resistant section (A1) having a non-circular cross-section in the thickness direction.

3. The upper battery cover according to claim 2, wherein the cross-sectional edge of the torsion resistant section (A1) is serrated.

4. The battery upper cover according to claim 2, wherein the adaptor (2) further comprises two or more torsion resistant sections (A2), the number of the torsion resistant sections (A1) is two or more, the two or more torsion resistant sections (A1) are arranged at intervals along the thickness direction, two adjacent torsion resistant sections (A1) are connected through the connection section (A2), and the torsion resistant sections (A1) and the connection section (A2) have different cross-sectional shapes and/or cross-sectional areas.

5. A battery, comprising:

a battery upper cover according to any one of claims 1 to 4;

the battery pack comprises a lower shell (3), wherein one end of the lower shell is provided with an opening, and a battery upper cover is buckled on the opening side of the lower shell (3) and forms an accommodating cavity with the lower shell (3);

the junction component (4) is arranged in the accommodating cavity, and the second end (22) of the adapter (2) extends into the accommodating cavity and is connected with the junction component (4).

6. The battery according to claim 5, further comprising a fastener (5), said fastener (5) passing through said lower housing (3) and said bus member (4) and being connected to said second end (22) of said adaptor (2).

7. The battery according to claim 6, wherein the lower shell (3) comprises a side wall (31) and a flange (32) formed by extending at least part of the edge of the side wall (31) outwards, the flange (32) is provided with an opening communicated with the accommodating cavity, the bus member (4) and the second end (22) of the adaptor (2) are stacked on the flange (32), and the fastener (5) penetrates through the opening and the bus member (4) and is connected to the second end (22).

8. The battery according to claim 7, wherein the opening has a predetermined depth, the fastener (5) extends into the opening, and the battery further comprises a sealing member (6), and the sealing member (6) is plugged at an end of the opening facing away from the accommodating cavity.

9. The cell according to claim 8, characterised in that the end of the opening facing away from the receiving cavity is provided with a detent (33), the sealing element (6) being partly inserted into the opening and being in detent engagement with the detent (33).

10. A vehicle characterized by comprising the battery of any one of claims 5 to 9.