CN218005048U - Battery cell structure with positive and negative electrode fool-proof functions - Google Patents

Abstract

The utility model discloses an electricity core structure with positive negative pole prevents slow-witted function, including electric core body, pencil division board and end cover. The end cover is arranged on a target electrode end of the battery cell body, and the target electrode end is one of the positive electrode and the negative electrode of the battery cell body. And an electrode mounting hole matched with the end cover is formed in the position, corresponding to the target electrode end, of the wire harness isolation plate. The utility model discloses regard one in the positive negative pole end of electric core structure as the target electrode end, set up the end cover on the target electrode end of electric core body, the position that corresponds the target electrode end on the pencil division board is equipped with the electrode mounting hole with end cover looks adaptation, thereby when making the electric core body assemble the pencil division board on, must be that the target electrode end cooperatees with corresponding electrode mounting hole, if positive negative electrode dress is reversed, then can't install and target in place, thereby realize the design of slow-witted of positive negative electrode, avoid scrapping the problem of whole electric core module because of the positive negative pole of electric core puts the mistake.

Description

Battery cell structure with positive and negative electrode fool-proof functions

Technical Field

The utility model relates to a battery technology field, in particular to electric core structure with positive negative pole prevents slow-witted function.

Background

With the development of battery technology, two-wheeled electric vehicles are widely used in the field of travel, and due to the continuous increase of the endurance mileage of the two-wheeled electric vehicles, the lithium iron phosphate battery is gradually replacing the traditional lead-acid battery with the advantage of high energy density.

However, lithium iron phosphate cells adopted in the battery pack of the two-wheeled electric vehicle are mostly cylindrical cells, and positive and negative electrode posts of the cells are positioned at two ends of the cylindrical cells; because positive negative pole appearance size of electric core is unanimous, in the actual production operation in-process, the positive negative pole of electric core is difficult discernment when putting electric core to the operation personnel, causes the electric core positive negative pole easily and puts the mistake to the circuit is unusual after leading to the welding of battery package module to accomplish, thereby discards whole module.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that: the utility model provides a battery cell structure with slow-witted function is prevented to positive negative pole, avoids scrapping the problem of whole electric core module because of electric core positive negative pole putting the mistake.

In order to solve the technical problem, the utility model discloses a technical scheme be:

a battery cell structure with positive and negative fool-proof functions comprises a battery cell body, a wire harness isolation plate and an end cover;

the end cover is covered on a target electrode end of the battery cell body, and the target electrode end is one of a positive electrode and a negative electrode of the battery cell body;

and an electrode mounting hole matched with the end cover is formed in the position, corresponding to the target electrode end, of the wiring harness isolation plate.

Furthermore, an opening through which the pole of the target electrode end passes is formed in the end cover.

Further, the opening is a half opening.

Furthermore, a protruding part is arranged on one surface, far away from the battery cell body, of the end cover;

one surface of the protruding part, which is far away from the battery cell body, is flush with the end surface of the pole at the target electrode end.

Further, the protruding part is a rib.

Further, the end cap has a thickness equal to a thickness of the harness spacer.

Further, the thickness of the end cover is 1.4-1.6mm.

Further, the target electrode end is the positive electrode of the cell body;

the end cover is correspondingly covered on the liquid injection port of the anode.

Further, the end cover is connected with the target electrode end in a gluing mode.

Further, the end cap is a plastic cap.

The beneficial effects of the utility model reside in that: the utility model provides an electricity core structure with positive negative pole prevents slow-witted function, regard as the target electrode end with one in the positive negative pole end of electricity core structure, set up the end cover on the target electrode end of electricity core body, the position that corresponds the target electrode end on the pencil division board is equipped with the electrode mounting hole with end cover looks adaptation, thereby make electricity core body when assembling on the pencil division board, must be that target electrode end and corresponding electrode mounting hole cooperate, if positive negative pole dress is reversed, then unable installation targets in place, thereby realize positive negative pole and prevent slow-witted design, avoid putting the problem of mistake and scrapping whole electricity core module because of electric core positive negative pole.

Drawings

Fig. 1 is a schematic diagram illustrating a cell body and an end cap of a cell structure with positive and negative fool-proof functions according to an embodiment of the present invention;

fig. 2 is an installation schematic diagram of a cell body and an end cap of a cell structure with positive and negative fool-proof functions according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a wire harness isolation plate of an electrical core structure with positive and negative fool-proof functions according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an electrical core structure with positive and negative electrodes fool-proof functions according to an embodiment of the present invention.

Description of reference numerals:

1. a cell body; 2. a wire harness isolation plate; 3. an end cap; 4. a target electrode end; 5. an electrode mounting hole; 6. an opening; 7. a boss portion; 8. a liquid injection port; 9. and (4) pole column.

Detailed Description

In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1 to 4, a battery cell structure with positive and negative fool-proof functions includes a battery cell body 1, a wire harness isolation plate 2 and an end cover 3;

the end cover 3 is covered on a target electrode end 4 of the battery cell body 1, and the target electrode end 4 is one of positive and negative electrodes of the battery cell body 1;

and an electrode mounting hole 5 matched with the end cover 3 is formed in the position, corresponding to the target electrode end 4, of the wire harness isolation plate 2.

From the above description, the beneficial effects of the present invention are: regard as target electrode end 4 in the positive negative pole end of electric core structure, set up end cover 3 on the target electrode end 4 of electric core body 1, the position that corresponds target electrode end 4 on pencil division board 2 is equipped with the electrode mounting hole 5 with end cover 3 looks adaptation, thereby when making electric core body 1 assemble on pencil division board 2, must have target electrode end 4 and the electrode mounting hole 5 that corresponds of end cover 3 and cooperate, if positive and negative electrode dress is reversed, then unable installation targets in place, thereby realize positive and negative electrode foolproof design, avoid putting the problem of mistake and scrapping whole electric core module because of electric core positive and negative.

Furthermore, the end cap 3 is provided with an opening 6 through which the pole 9 of the target electrode terminal 4 passes.

As can be seen from the above description, the end cap 3 is provided with the opening 6 for the pole 9 of the target electrode terminal 4 to pass through, so that the fool-proof effect is achieved without affecting the use of the cell body 1.

Further, the opening 6 is a half opening 6.

As can be seen from the above description, the opening 6 is designed as a half-opening 6, which facilitates the field operation such as the wiring of the pole 9.

Furthermore, a protruding part 7 is arranged on one surface, away from the battery cell body 1, of the end cover 3;

one surface of the protruding part 7, which is far away from the battery cell body 1, is flush with the end surface of the pole 9 of the target electrode end 4.

As can be seen from the above description, the protrusion 7 is disposed on the surface of the end cap 3 away from the battery cell body 1, and the protrusion 7 is flush with the end surface of the terminal post 9, so as to prevent the terminal post 9 with the end cap 3 from still being exposed from the electrode hole corresponding to the other electrode when the positive electrode and the negative electrode are reversely mounted, thereby enhancing the foolproof effect.

Further, the protruding part 7 is a rib.

Further, the thickness of the end cap 3 is the same as that of the harness insulation board 2.

As can be seen from the above description, the thickness of the end cap 3 is the same as that of the wire harness isolation plate 2, so that the installation and matching of the target electrode terminal 4 and the wire harness isolation plate 2 are smoother and more beautiful.

Further, the thickness of the end cover 3 is 1.4-1.6mm.

Further, the target electrode end 4 is a positive electrode of the cell body 1;

the end cover 3 is correspondingly covered on the liquid injection port 8 of the anode.

From the above description, the difference between the positive electrode and the negative electrode of the battery cell body 1 is that the positive electrode has the liquid injection port 8, and the end cap 3 is disposed at the positive electrode and corresponds to the position where the liquid injection port 8 is disposed, so that the difference effect of the positive electrode structure and the negative electrode structure is enhanced, and the fool-proofing effect is more remarkable.

Further, the end cap 3 is connected with the target electrode terminal 4 by gluing.

Further, the end cap 3 is a plastic cap.

As can be seen from the above description, the plastic cover is low in cost and has good electrical insulation.

The utility model discloses an electricity core structure with positive negative pole prevents slow-witted function can be applicable to the scene that the slow-witted design was prevented to electric core, explains through specific embodiment below:

referring to fig. 1 to 4, a first embodiment of the present invention is:

a battery cell structure with positive and negative fool-proof functions is shown in figures 1, 3 and 4 and comprises a battery cell body 1, a wiring harness isolation plate 2 and an end cover 3;

the end cover 3 is covered on a target electrode end 4 of the cell body 1, and the target electrode end 4 is one of positive and negative electrodes of the cell body 1. In the present embodiment, the target electrode end 4 is taken as an example of the positive electrode of the cell body 1, and the end cap 3 is provided to cover the liquid inlet 8 of the positive electrode. And an electrode mounting hole 5 matched with the end cover 3 is formed in the position, corresponding to the target electrode end 4, of the wire harness isolation plate 2. Wherein, the end cover 3 and the target electrode end 4 are fixedly connected by using 3M glue. The end cap 3 may optionally be a plastic cap of PA + ABS material.

In the present embodiment, as shown in fig. 1, the end cap 3 is provided with an opening 6 through which the electrode post 9 of the target electrode terminal 4 passes. For the convenience of field work, the opening 6 is a half opening 6, half surrounding the pole 9 of the target electrode terminal 4.

In this embodiment, as shown in fig. 1, in order to enhance the fool-proof effect, a protruding portion 7 is provided on a surface of the end cap 3 away from the cell body 1. One surface of the protruding part 7, which is far away from the battery cell body 1, is flush with the end surface of the pole 9 of the target electrode end 4. Preferably, the projections 7 are ribs.

In this embodiment, a battery cell structure with positive and negative electrode fool-proof functions is based on the fool-proof principle:

as shown in fig. 2 and 4, the target electrode end 4 is additionally provided with an end cap 3, and the outline structure of the target electrode end is completely different from that of the other electrode end; similarly, the electrode mounting hole 5 of the harness isolation plate 2 corresponding to the target electrode terminal 4 has a different pattern from the other mounting holes. The target electrode end 4 of the cell body 1 can be installed in place only by being correspondingly installed on the electrode installation hole 5, and if the target electrode end is installed on other installation holes, the target electrode end cannot be installed due to different sizes and shapes, so that fool proofing is achieved. Moreover, due to the existence of the protruding portion 7, even if the positive and negative electrodes of the battery cell body 1 are reversely arranged, the terminal 9 cannot be exposed due to the fact that the protruding portion 7 cannot pass through other mounting holes, and therefore the fool-proof effect is enhanced.

In the present embodiment, the thickness of the end cap 3 is 1.4 to 1.6mm, preferably 1.5mm, which is the same as the thickness of the harness insulation panel 2.

To sum up, the utility model provides a pair of electric core structure with positive negative pole prevents slow-witted function, regard as the target electrode end in the positive negative pole end of electric core structure, set up the end cover on the target electrode end of electric core body, the position that corresponds the target electrode end on the pencil division board is equipped with the electrode mounting hole with end cover looks adaptation, thereby when making electric core body assemble the pencil division board on, must be that the target electrode end cooperatees with the electrode mounting hole that corresponds, if positive negative pole dress is reversed, then unable installation targets in place, thereby realize that positive negative pole prevents slow-witted design, avoid putting the problem of mistake scrapping whole electric core module because of electric core positive negative pole.

The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.

Claims (10)

1. A battery cell structure with positive and negative fool-proof functions is characterized by comprising a battery cell body, a wire harness isolation plate and an end cover;

the end cover is arranged on a target electrode end of the battery cell body in a covering manner, and the target electrode end is one of positive and negative electrodes of the battery cell body;

and an electrode mounting hole matched with the end cover is formed in the position, corresponding to the target electrode end, of the wire harness isolation plate.

2. The battery cell structure with positive and negative fool-proofing functions according to claim 1, wherein the end cap is provided with an opening for a pole of the target electrode end to pass through.

3. The battery cell structure with positive and negative electrode fool-proofing functions according to claim 2, wherein the opening is a half opening.

4. The battery cell structure with positive and negative fool-proofing functions of claim 2, wherein a protrusion is disposed on a surface of the end cap away from the battery cell body;

one surface of the protruding part, which is far away from the battery cell body, is flush with the end surface of the pole at the target electrode end.

5. The battery cell structure with positive and negative fool-proofing functions of claim 4, wherein the protrusions are ribs.

6. The battery cell structure with positive and negative fool-proofing functions of claim 1, wherein the thickness of the end cap is the same as that of the wire harness isolation plate.

7. The battery cell structure with positive and negative fool-proofing functions of claim 1, wherein the thickness of the end cap is 1.4-1.6mm.

8. The battery cell structure with positive and negative fool-proofing functions of claim 1, wherein the target electrode end is the positive electrode of the battery cell body;

the end cover is correspondingly covered on the liquid injection port of the anode.

9. The battery cell structure with positive and negative fool-proofing functions of claim 2, wherein the end cap is connected with the target electrode end by gluing.

10. The battery cell structure with positive and negative fool-proofing functions of claim 1, wherein the end cap is a plastic cap.

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