CN204088406U

CN204088406U - Electrokinetic cell and electrokinetic cell top cover

Info

Publication number: CN204088406U
Application number: CN201420582108.1U
Authority: CN
Inventors: 李全坤; 邓平华; 王鹏; 吴凯; 陈圣旺
Original assignee: Ningde Amperex Technology Ltd; Dongguan Amperex Technology Ltd
Current assignee: Dongguan Poweramp Technology Ltd
Priority date: 2014-10-09
Filing date: 2014-10-09
Publication date: 2015-01-07
Anticipated expiration: 2024-10-09

Abstract

The utility model provides a kind of electrokinetic cell and electrokinetic cell top cover.Described electrokinetic cell top cover comprises: coping plate, is provided with installing hole; Pole, insulated enclosure is arranged in the installing hole of coping plate; And connection aluminium block, be fixedly connected on corresponding pole.Wherein, the surface that coping plate is relative with connecting aluminium block arranges the first recess; Connect on the aluminium block surface relative with coping plate and be provided with the second corresponding recess.Described electrokinetic cell top cover also comprises: at least one insulator, the both sides of each insulator are accommodated respectively and are fixed on the first corresponding recess and the second corresponding recess, with between the connection aluminium block being fixedly connected on coping plate and correspondence and make coping plate and corresponding connection aluminium block spaced apart.Described electrokinetic cell comprises above-mentioned electrokinetic cell top cover.The height that electrokinetic cell of the present utility model and electrokinetic cell top cover can reduce coping plate and pole, the anti-rotation effect that can improve pole and connect between aluminium block.

Description

Electrokinetic cell and electrokinetic cell top cover

Technical field

The utility model relates to energy storage device field, particularly relates to a kind of electrokinetic cell and electrokinetic cell top cover.

Background technology

Current driving force battery structure part designs all more complicated, especially cap structure.Consider battery core safety, a lot of top cover adds resistant to elevated temperatures insulating material to insulate between top cover and pole in positive and negative terminals position at present, ensures high-temperature insulation as increased pottery at negative pole.

And these parts, be substantially all annular at present, be sheathed on pole.We know, ceramic material and glass material are all very crisp, easy pressure break.So substantially all want the thickness of more than 3mm just can guarantee intensity.And for ring-shaped pottery part, upper and lower surface needs enough to put down ability well resistance to compression, and this often needs aft-loaded airfoil to polish.

Based on more than, can high cost be caused, be unfavorable for the batch production of electrokinetic cell, and pole height can be caused too high, battery core height is increased, greatly reduce module utilize space.

And current most of electrokinetic cell top cover is all adopt riveted structure, aluminium block and the interior pole connecting cell polar ear of outer even electrode are not one, and the aluminium block connecting electrode outside so just existing can rotate, and needs structure anti-rotation.Traditional structure is all plastic glue outside outer even aluminium block, and plastic cement embeds anti-rotation in coping plate counterbore.But this effect is not ideal.First is due to plastic cement limited strength, and second is the anti-rotation under plastic cement can not guarantee high temperature.

Utility model content

In view of Problems existing in background technology, the purpose of this utility model is to provide a kind of electrokinetic cell and electrokinetic cell top cover, and it can reduce the height of coping plate and pole.

Another object of the present utility model is to provide a kind of electrokinetic cell and electrokinetic cell top cover, its anti-rotation effect that can improve pole and connect between aluminium block.

To achieve these goals, in first aspect, the utility model provides a kind of electrokinetic cell top cover, and it comprises: coping plate, is provided with installing hole; Pole, insulated enclosure is arranged in the installing hole of coping plate; And connection aluminium block, be fixedly connected on corresponding pole.Wherein, the surface that coping plate is relative with connecting aluminium block arranges the first recess; Connect on the aluminium block surface relative with coping plate and be provided with the second corresponding recess.Described electrokinetic cell top cover also comprises: at least one insulator, the both sides of each insulator are accommodated respectively and are fixed on the first corresponding recess and the second corresponding recess, with between the connection aluminium block being fixedly connected on coping plate and correspondence and make coping plate and corresponding connection aluminium block spaced apart.

To achieve these goals, in second aspect, the utility model provides a kind of electrokinetic cell, and it comprises the electrokinetic cell top cover according to the utility model first aspect.

The beneficial effects of the utility model are as follows:

In electrokinetic cell top cover of the present utility model, the both sides of each insulator accommodate the first recess of the correspondence be fixed on the coping plate surface relative with being connected aluminium block and the second corresponding recess respectively, with between the connection aluminium block being fixedly connected on coping plate and correspondence and make coping plate and corresponding connection aluminium block spaced apart, thus the height of coping plate and pole can be reduced thus improve the space availability ratio of the energy storage device (such as electrokinetic cell and module thereof) using this electrokinetic cell top cover and the height of reduction energy storage device, thus the anti-rotation effect that can improve pole and connect between aluminium block, and electrokinetic cell top cover of the present utility model can also simplified structure, improve reliability, significantly reduce costs.

Accompanying drawing explanation

Fig. 1 is the stereogram of the embodiment according to the utility model electrokinetic cell top cover;

Fig. 2 is the stereogram of another embodiment according to the utility model electrokinetic cell top cover;

Fig. 3 is the vertical view of the embodiment shown in Fig. 1;

Fig. 4 is the cutaway view of making along the X-X line of Fig. 3;

Fig. 5 is the enlarged drawing of the encircled portion of Fig. 4;

Fig. 6 is the vertical view of the embodiment shown in Fig. 2;

Fig. 7 is the cutaway view of making along the Y-Y line of Fig. 6;

Fig. 8 is the enlarged drawing of the encircled portion of Fig. 7.

Wherein, description of reference numerals is as follows:

1 coping plate 22 convex platform

11 installing hole 23 lower convex platforms

12 pressure release valve openings 3 connect aluminium block

13 liquid injection hole 31 second recesses

14 first recess 4 insulators

2 pole 5 sealing rings

21 bodies

Embodiment

Describe in detail with reference to the accompanying drawings according to electrokinetic cell of the present utility model and electrokinetic cell top cover.

First electrokinetic cell top cover according to the utility model first aspect is described.

Referring to figs. 1 through Fig. 8, the electrokinetic cell top cover according to the utility model first aspect comprises: coping plate 1, is provided with installing hole 11; Pole 2, insulated enclosure is arranged in the installing hole 11 of coping plate 1; And connect aluminium block 3, be fixedly connected on corresponding pole 2.Wherein, the surface that coping plate 1 is relative with connecting aluminium block 3 arranges the first recess 14; Connect on aluminium block 3 surface relative with coping plate 1 and be provided with the second corresponding recess 31.Described electrokinetic cell top cover also comprises: at least one insulator 4, the both sides of each insulator 4 are accommodated respectively and are fixed on the first corresponding recess 14 and the second corresponding recess 31, with between the connection aluminium block 3 being fixedly connected on coping plate 1 and correspondence and make coping plate 1 and corresponding connection aluminium block 3 spaced apart.

In electrokinetic cell top cover of the present utility model, the both sides of each insulator 4 accommodate the first recess 14 of the correspondence be fixed on coping plate 1 surface relative with being connected aluminium block 3 and the second corresponding recess 31 respectively, with between the connection aluminium block 3 being fixedly connected on coping plate 1 and correspondence and make coping plate 1 and corresponding connection aluminium block 3 spaced apart, thus the height of coping plate 1 and pole 2 can be reduced thus improve the space availability ratio of the energy storage device (such as electrokinetic cell and module thereof) using this electrokinetic cell top cover and the height of reduction energy storage device, thus the anti-rotation effect that can improve pole 2 and connect between aluminium block 3, and electrokinetic cell top cover of the present utility model can also simplified structure, improve reliability, significantly reduce costs.

In an embodiment of the electrokinetic cell top cover according to the utility model first aspect, each insulator 4 is (with reference to Fig. 1, Fig. 3 to Fig. 5) or spherical (with reference to Fig. 2, Fig. 6 to Fig. 8) in small cylindrical.In small cylindrical or the moulding process of spherical insulator 4 is easy to realize and intensity is high thus improve pole 2 and the anti-rotation effect being connected aluminium block 3.In an embodiment of the electrokinetic cell top cover according to the utility model first aspect, referring to figs. 1 through Fig. 4, Fig. 6, Fig. 7, coping plate 1 can be provided with pressure release valve opening 12 and liquid injection hole 13.

In an embodiment of the electrokinetic cell top cover according to the utility model first aspect, with reference to Fig. 1, Fig. 2, Fig. 4, Fig. 5, Fig. 7, Fig. 8, pole 2 can comprise body 21.

In an embodiment of the electrokinetic cell top cover according to the utility model first aspect, with reference to Fig. 4, Fig. 5, Fig. 7, Fig. 8 composition graphs 1, Fig. 2, pole 2 also can comprise: convex platform 22, to be positioned at above body 21 and to be connected with body 21, connecting aluminium block 3 is sheathed on pole 2 convex platform 22 in male-female engagement mode.

In an embodiment of the electrokinetic cell top cover according to the utility model first aspect, with reference to Fig. 4, Fig. 5, Fig. 7, Fig. 8 composition graphs 1, Fig. 2, pole 2 also can comprise the lower convex platform 23 being positioned at and being connected below body 21 and with body 21.Lower convex platform 23 may be used for being fixedly installed conductive connecting piece.

In an embodiment of the electrokinetic cell top cover according to the utility model first aspect, the position of insulator 4 can near this coping plate 1 and the pole 2 connected between aluminium block 3.

In an embodiment of the electrokinetic cell top cover according to the utility model first aspect, insulator 4 can be pottery or mica material.

In an embodiment of the electrokinetic cell top cover according to the utility model first aspect, with reference to Fig. 1, Fig. 2, Fig. 4, Fig. 5, Fig. 7, Fig. 8, insulator 4 can be multiple (in the example shown in accompanying drawing, insulator 4 is 2, but the utility model is not limited thereto), and described multiple insulator 4 is arranged between the connection aluminium block 3 of coping plate 1 and correspondence around corresponding pole 2.In one embodiment, with reference to Fig. 1, Fig. 2, Fig. 4, Fig. 5, Fig. 7, Fig. 8, described multiple insulator 4 is circumferentially angularly disposed on around corresponding pole 2 between the connection aluminium block 3 of coping plate 1 and correspondence.

In an embodiment of the electrokinetic cell top cover according to the utility model first aspect, pole 2 can comprise Positive Poles and negative pole pole one of at least.In the example shown in accompanying drawing, pole 2 includes Positive Poles and negative pole pole, as depicted in figs. 1 and 2.

In an embodiment of the electrokinetic cell top cover according to the utility model first aspect, pole 2 can comprise Positive Poles and negative pole pole, then the insulator 4 that negative pole pole is corresponding adopts small column ceramic material; Insulator 4 corresponding to Positive Poles adopts small column mica material.

In an embodiment of the electrokinetic cell top cover according to the utility model first aspect, with reference to Fig. 1, Fig. 2, Fig. 4, Fig. 5, Fig. 7, Fig. 8, electrokinetic cell top cover also can comprise: insulated enclosure circle 5, to be set on pole 2 and and to be contained in the installing hole 11 of coping plate 1, to make seal between coping plate 1 and pole 2 and insulate.Here, it should be noted that, make to seal between coping plate 1 and pole 2 and insulate and be not limited to adopt insulated enclosure circle 5, any other elements well known in the art can be adopted.

The following describes the electrokinetic cell according to the utility model second aspect.

The electrokinetic cell top cover according to the utility model first aspect is comprised according to the electrokinetic cell of the utility model second aspect.

Claims

1. an electrokinetic cell top cover, comprising:

Coping plate (1), is provided with installing hole (11);

Pole (2), insulated enclosure is arranged in the installing hole (11) of coping plate (1); And

Connect aluminium block (3), be fixedly connected on corresponding pole (2);

It is characterized in that,

The surface that coping plate (1) is relative with connecting aluminium block (3) arranges the first recess (14);

Connect on aluminium block (3) surface relative with coping plate (1) and be provided with corresponding the second recess (31);

Described electrokinetic cell top cover also comprises:

At least one insulator (4), the both sides of each insulator (4) are accommodated respectively and are fixed on corresponding the first recess (14) and corresponding the second recess (31), to make the connection aluminium block (3) of coping plate (1) and correspondence spaced apart between the connection aluminium block (3) being fixedly connected on coping plate (1) and correspondence.

2. electrokinetic cell top cover according to claim 1, is characterized in that, each insulator (4) is in small cylindrical or spherical.

3. electrokinetic cell top cover according to claim 1, is characterized in that, pole (2) comprising:

Body (21); And

Convex platform (22), is positioned at body (21) top and is connected with body (21), connects aluminium block (3) is sheathed on pole (2) convex platform (22) in male-female engagement mode.

4. electrokinetic cell top cover according to claim 1, is characterized in that, each insulator (4) is pottery or mica material.

5. electrokinetic cell top cover according to claim 1, it is characterized in that, insulator (4) is for multiple, and described multiple insulator (4) is arranged between coping plate (1) and corresponding connection aluminium block (3) around corresponding pole (2).

6. electrokinetic cell top cover according to claim 5, it is characterized in that, described multiple insulator (4) is circumferentially angularly disposed between coping plate (1) and corresponding connection aluminium block (3) around corresponding pole (2).

7. electrokinetic cell top cover according to claim 1, is characterized in that, electrokinetic cell top cover also comprises:

Insulated enclosure circle (5), is set in pole (2) and goes up and and be contained in the installing hole (11) of coping plate (1), to make seal between coping plate (1) and pole (2) and insulate.

8. an electrokinetic cell, is characterized in that, comprises the electrokinetic cell top cover according to any one of claim 1-7.