Negative electrode assembly for battery and vehicle

Abstract

The utility model relates to a negative electrode assembly for a battery and a vehicle, the negative electrode assembly for the battery comprises a negative electrode terminal and a negative electrode column, and the negative electrode terminal comprises a lantern ring which can sleeve the periphery of the negative electrode column and can move along the axial direction of the negative electrode column; a limiting structure for limiting the circumferential rotation of the lantern ring is arranged between the outer circumferential wall of the negative pole and the inner circumferential wall of the lantern ring in a matched manner, and a connecting piece for locking or loosening the negative pole by the lantern ring is arranged on the lantern ring. According to the design, when a vehicle is powered on and powered off, a worker needs to operate the connecting piece, and due to the existence of the limiting structure, the negative terminal is prevented from rotating, then the situation that an operation tool rotates along with the negative terminal and interferes with peripheral components of the negative terminal is avoided, convenience is brought to the worker and after-sales operation, and practicability is higher.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a negative electrode assembly for a battery and a vehicle. Background Technology

[0002] As the requirements for vehicle safety and scenario-specific features become increasingly stringent, the battery is being moved from the front compartment or trunk to the passenger compartment to avoid collisions.

[0003] In scenarios such as OEM assembly, after-sales maintenance, and customers traveling for extended periods without driving, power-on / off operations are typically required to ensure personnel safety and battery life. Powering on / off involves loosening the negative terminal of the battery and manually removing it to an insulated, non-metallic location to disconnect the vehicle from power. Powering on is then achieved by returning the negative terminal to its original position.

[0004] When the battery is placed near the seat, the operating space is limited, and due to the tension stress at the end of the wiring harness connected to the negative terminal, the degree of deformation of the wiring harness itself cannot be controlled, causing the negative terminal to rotate. When powering on and off, there is a risk that the sleeve of the operating tool may interfere with surrounding parts such as carpets, thus affecting the worker's operation. Utility Model Content

[0005] Therefore, it is necessary to provide a negative electrode assembly for a battery that facilitates operation by preventing circumferential rotation of the negative terminal.

[0006] This application provides a negative electrode assembly for a battery, including a negative terminal and a negative terminal post. The negative terminal includes a collar that can be sleeved around the negative terminal post and can move along the axial direction of the negative terminal post. A limiting structure that restricts the circumferential rotation of the collar is matched between the outer peripheral wall of the negative terminal post and the inner peripheral wall of the collar. A connecting member is provided on the collar to lock or release the negative terminal post.

[0007] In one embodiment, the limiting structure includes a plug-in portion and a slot that are interlocked, the slot extending radially along the collar, one of the plug-in portion and the slot being located on the outer peripheral wall of the negative terminal post, and the other of the plug-in portion and the slot being located on the inner peripheral wall of the collar.

[0008] It is understandable that by using a combination of plug and slot, and by fitting a negative terminal onto the negative terminal, the negative terminal can be guided while its rotation is restricted, which helps to ensure the consistency between the design and the mass production product.

[0009] In one embodiment, the insertion portion is a protrusion on the outer peripheral wall of the negative electrode post and extending along the axial direction of the negative electrode post, and the slot is located on the inner peripheral wall of the collar.

[0010] In one embodiment, the insertion portion and the slot plate of the slot are clearance-fitted.

[0011] In one embodiment, the collar includes a C-shaped annular body, with two free ends of the annular body extending laterally outward to form connecting plates. The two connecting plates are arranged side by side at intervals and have corresponding threaded holes for threaded connection with the connector.

[0012] In one embodiment, the negative electrode post includes an electrode body and a sleeve, the sleeve being sleeved around the electrode body and connected to the electrode body, and the outer peripheral wall of the negative electrode post being the outer peripheral wall of the sleeve.

[0013] In one embodiment, the pole piece is threadedly connected to the sleeve.

[0014] In one embodiment, a bracket is further included, the bracket having a through hole for the electrode to pass through, and one end of the electrode having a limiting part that restricts the electrode from passing through the through hole and disengaging from the bracket. The bracket is located between the sleeve and the limiting part and is fixedly connected to the limiting part.

[0015] In one embodiment, the limiting portion is an extension plate that extends laterally outward from the periphery of the end of the pole body, and the extension plate is fixedly connected to the bracket by welding.

[0016] This application also provides a vehicle including a seat and a battery arranged close to the seat, characterized in that the battery includes a negative electrode assembly as described in any of the above embodiments, the negative electrode assembly being connected to the front crossbeam of the seat.

[0017] Compared with the prior art, the negative terminal assembly provided in this application, by setting a limiting structure between the negative terminal post and the collar to restrict the rotation of the collar, prevents the negative terminal from rotating. This avoids interference between the operating tool and the surrounding components of the negative terminal due to the rotation of the negative terminal, making it more convenient for workers and after-sales personnel to operate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a schematic diagram of the assembly structure of the battery, front crossbeam and negative electrode assembly in one embodiment of this application;

[0020] Figure 2 for Figure 1 A cross-sectional view of the assembly structure of the intermediate negative electrode component;

[0021] Figure 3 for Figure 1 A sectional view of the middle section of the structure;

[0022] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the structure of the negative electrode post according to an embodiment of this application;

[0024] Figure 6 This is a partial structural diagram of the negative terminal of an embodiment of this application.

[0025] Reference numerals: 1. Negative terminal; 11. Collar; 111. Ring body; 1111. Slot; 112. Connecting plate; 12. Connector; 13. Wiring harness; 2. Negative terminal post; 21. Terminal post body; 211. Extension plate; 22. Sleeve; 221. Protrusion; 222. Step; 3. Limiting structure; 4. Bracket; 5. Battery; 6. Front crossbeam. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," "side," "top," "bottom," and similar expressions used in this application's specification are merely for describing various exemplary structural parts and elements of this application. However, their use herein is for illustrative purposes only and is determined based on the exemplary orientations shown in the accompanying drawings, and does not represent the only possible implementation. Since the embodiments disclosed in this application can be arranged in different orientations, these terms indicating orientation are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] It should be noted that "axial arrangement" means that the overall arrangement direction is along the axial direction, including but not limited to axial extension, and may be at an angle to the axial direction.

[0031] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0032] Please see Figures 1 to 6This application provides a negative electrode assembly. This negative electrode assembly is used in a battery 5 and includes a negative terminal 1 and a negative terminal post 2. The negative terminal 1 is electrically connected to the negative terminal of the battery 5 and includes a collar 11 and a connector 12. The collar 11 is sleeved around the negative terminal post 2 and can move along the axial direction of the negative terminal post 2. A wire harness 13 is connected to the collar 11. The connector 12 is disposed on the collar 11, allowing the collar 11 to lock or release the negative terminal post 2. In this application, the negative terminal 1 is a negative grounding terminal.

[0033] In one implementation, such as Figure 2 and Figure 6 As shown, the collar 11 includes a C-shaped annular body 111, with two free ends of the annular body 111 extending laterally outward to form connecting plates 112. The two connecting plates 112 are arranged side-by-side with a gap between them. The connecting element is a locking clamp, which is fitted around the periphery of the two connecting plates. In this embodiment, the connecting element 12 is a screw or bolt, and the two connecting plates 112 have corresponding threaded holes for threaded connection with the connecting element.

[0034] It should be noted that when the toroid is a circle, "lateral outward" is equivalent to radial outward.

[0035] like Figure 2 As shown, a limiting structure 3 is provided between the outer peripheral wall of the negative terminal post 2 and the inner peripheral wall of the collar 11 to restrict the circumferential rotation of the collar 11. That is to say, the presence of the limiting structure 3 does not affect the fact that the negative terminal 1 is sleeved on the negative terminal post 2, and the negative terminal 1 can move axially but cannot rotate circumferentially, thus achieving the circumferential limitation of the negative terminal 1.

[0036] Understandably, when powering on or off the vehicle, workers need to operate the screw-on connector 12 to lock the collar 11 onto the negative terminal 2 or to loosen the collar 11 from the negative terminal 2. By setting a limiting structure 3 between the negative terminal 2 and the collar 11 to restrict the rotation of the collar 11, rotation of the negative terminal 1 is prevented, thereby preventing the operating tool from interfering with the surrounding components of the negative terminal 1 as it rotates, thus facilitating operation by workers and after-sales personnel. Throughout the entire power-on and power-off process, the negative terminal 1 can only move along the axial direction of the negative terminal 2 relative to it.

[0037] like Figure 2 As shown, the aforementioned limiting structure 3 includes a plug-in portion and a slot 1111 that are mutually engaged. The slot 1111 extends radially along the collar 11. One of the plug-in portion and the slot 1111 is located on the outer peripheral wall of the negative electrode post 2, and the other of the plug-in portion and the slot 1111 is located on the inner peripheral wall of the collar 11. In this embodiment, there is a clearance fit between the plug-in portion and the slot plate of the slot 1111, and the clearance on one side is 1.5 mm.

[0038] It is understandable that by using a combination of a plug and a slot 1111, a negative terminal 2 is fitted onto the negative terminal 1, and the slot 1111 extends along the axial direction of the collar 11, so as to guide the negative terminal 1 while restricting the rotation of the negative terminal 1, which helps to ensure the consistency of the product in design and mass production.

[0039] In one embodiment, the insertion part is located on the inner peripheral wall of the collar 11, and the slot 1111 is opened on the outer peripheral wall of the negative terminal 2 and extends along the axial direction of the negative terminal 2.

[0040] In one embodiment, the insertion portion is provided on the outer peripheral wall of the negative electrode post 2, and the slot 1111 is located on the inner peripheral wall of the collar 11. The insertion portion is a protrusion on the outer peripheral wall of the negative electrode post 2, and the slot 1111 extends axially along the collar 11. In this embodiment, the insertion portion is a protrusion 221 that protrudes from the outer peripheral wall of the negative electrode post 2 and extends axially along the negative electrode post 2, and the slot 1111 extends axially along the collar 11.

[0041] like Figures 2-4 As shown, the negative electrode post 2 includes an electrode body 21 and a sleeve 22. The sleeve 22 is fitted around and connected to the electrode body 21. The outer peripheral wall of the negative electrode post 2 is the outer peripheral wall of the sleeve 22, meaning that the protrusion 221 is located on the sleeve 22. In one embodiment, the sleeve 22 is detachably installed on the electrode body 21, such as by a snap-fit ​​mechanism. In this embodiment, the electrode body 21 and the sleeve 22 are threadedly connected; that is, the inner peripheral wall of the sleeve 22 has an internal thread, and the outer peripheral wall of the electrode body 21 has an external thread that connects with the internal thread.

[0042] To limit the further downward movement of the collar, such as Figure 2 and Figure 5 As shown, the outer peripheral wall of the sleeve 22 extends outward to form a step 222. When the collar 11 is fitted onto the sleeve 22, the step 222 abuts against the collar 11.

[0043] To facilitate subsequent installation, such as Figure 1 and Figure 4 As shown, the aforementioned negative electrode assembly also includes a bracket 4. The bracket 4 has a through hole for the electrode post 21 to pass through. One end of the electrode post 21 is provided with a limiting part to prevent the electrode post 21 from passing through the through hole and disengaging from the bracket 4. The bracket 4 is located between the sleeve 22 and the limiting part, and is fixedly connected to the limiting part. In this way, the bracket 4 is fixedly connected to the negative electrode post 2, maintaining relative stillness.

[0044] In one embodiment, the limiting part is a connecting strip, and the end of the pole piece 21 is fixedly connected to the connecting strip. In this embodiment, the limiting part is an extension plate 211 formed by extending laterally outward from the periphery of the end of the pole piece 21. The extension plate 211 can be circular, square, or other shapes.

[0045] In one embodiment, the bracket 4 is fixedly connected to the extension plate 211 by screws or by snap-fit. In this embodiment, the extension plate 211 and the bracket 4 are fixedly connected by welding. Thus, the negative terminal 2 and the bracket 4 form a single unit.

[0046] This application also provides a vehicle, such as Figure 1 As shown, the vehicle includes the aforementioned battery 5 and a seat. The battery 5 is positioned close to the seat. The battery includes the aforementioned negative terminal assembly, which is connected to the front crossbeam of the seat. Specifically, the bracket 4 is connected to the front crossbeam 6 of the seat by bolts or screws. In one embodiment, the battery 5 is located below the seat. In another embodiment, the battery 5 may also be located in a position other than directly below the seat but close to it.

[0047] 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.

[0048] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A negative electrode assembly for a battery, characterized in that, The device includes a negative terminal (1) and a negative terminal (2). The negative terminal (1) includes a collar (11) that can be sleeved around the negative terminal (2) and can move along the axial direction of the negative terminal (2). A limiting structure (3) that restricts the circumferential rotation of the collar (11) is matched between the outer peripheral wall of the negative terminal (2) and the inner peripheral wall of the collar (11). A connecting member (12) is provided on the collar (11) to lock or release the negative terminal (2).

2. The negative electrode assembly according to claim 1, characterized in that, The limiting structure (3) includes a plug-in part and a slot (1111) that are plugged into each other. The slot (1111) extends radially along the collar (11). One of the plug-in part and the slot (1111) is located on the outer peripheral wall of the negative terminal post (2), and the other of the plug-in part and the slot (1111) is located on the inner peripheral wall of the collar (11).

3. The negative electrode assembly according to claim 2, characterized in that, The insertion part is a protrusion (221) that protrudes from the outer peripheral wall of the negative electrode post (2) and extends along the axial direction of the negative electrode post (2), and the slot (1111) is located on the inner peripheral wall of the collar (11).

4. The negative electrode assembly according to claim 2, characterized in that, The insertion part is clearance-fitted with the slot plate of the slot (1111).

5. The negative electrode assembly according to claim 1, characterized in that, The collar (11) includes a C-shaped annular body (111), and the two free ends of the annular body (111) extend laterally outward to form connecting plates (112). The two connecting plates (112) are arranged side by side at intervals and have corresponding threaded holes for threaded connection with the connecting member (12).

6. The negative electrode assembly according to any one of claims 1 to 5, characterized in that, The negative electrode post (2) includes an electrode body (21) and a sleeve (22). The sleeve (22) is sleeved around the electrode body (21) and connected to the electrode body (21). The outer peripheral wall of the negative electrode post (2) is the outer peripheral wall of the sleeve (22).

7. The negative electrode assembly according to claim 6, characterized in that, The pole piece (21) is threadedly connected to the sleeve (22).

8. The negative electrode assembly according to claim 6, characterized in that, It also includes a bracket (4), which has a through hole for the pole piece (21) to pass through. One end of the pole piece (21) is provided with a limiting part to prevent the pole piece (21) from passing through the through hole and detaching from the bracket (4). The bracket (4) is located between the sleeve (22) and the limiting part and is fixedly connected to the limiting part.

9. The negative electrode assembly according to claim 8, characterized in that, The limiting part is an extension plate (211) that extends outward from the periphery of the end of the pole body (21), and the extension plate (211) is fixedly connected to the bracket (4) by welding.

10. A vehicle comprising a seat and a battery (5) disposed adjacent to said seat, characterized in that, The battery (5) includes a negative electrode assembly according to any one of claims 1 to 9, the negative electrode assembly being connected to the front crossbeam (6) of the seat.

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