CN219203341U - Waterproof battery - Google Patents

Abstract

The present utility model provides a waterproof battery comprising: the first end of the outer cylinder is provided with a first opening, and the second end of the outer cylinder is a closed end; a battery mounted inside the outer tub; the first sealant is filled in the outer barrel, is positioned at one end of the battery facing the first opening part, and leaves a sealing space with the first end of the outer barrel; the second sealant is filled in the sealing space to form a two-layer sealing structure with the first sealant for sealing the first opening; the first end of the lead is connected with the battery, and the second end of the lead passes through the first sealant and the second sealant and extends out of the outer barrel. The technical scheme of the application effectively solves the problem of poor waterproof performance of the battery in the related technology.

Description

Waterproof battery

Technical Field

The utility model relates to the technical field of battery waterproofing, in particular to a waterproof battery.

Background

At present, lithium batteries are mainly applied to various consumer electronic products and electric vehicles, and the lithium batteries are inevitably contacted with some humid environments in the use process of mobile phones and electric bicycles, so that short circuits and the like are easy to occur in the humid environments.

In the related art, in order to realize battery waterproofing, generally in the outside packing box body of battery, will the battery be installed in the box rethread apron encapsulation box, and when such structure used for a long time, steam enters into the inside of box and then contacts with the battery through the gap of the apron of box easily to influence the result of use of battery.

Disclosure of Invention

The utility model mainly aims to provide a waterproof battery, which is used for solving the problem of poor waterproof performance of batteries in the related art.

In order to achieve the above object, the present utility model provides a waterproof battery comprising: the first end of the outer cylinder is provided with a first opening, and the second end of the outer cylinder is a closed end; a battery mounted inside the outer tub; the first sealant is filled in the outer barrel, is positioned at one end of the battery facing the first opening part, and leaves a sealing space with the first end of the outer barrel; the second sealant is filled in the sealing space to form a two-layer sealing structure with the first sealant for sealing the first opening; the first end of the lead is connected with the battery, and the second end of the lead passes through the first sealant and the second sealant and extends out of the outer barrel.

Further, the first sealant comprises an epoxy sealant and the second sealant comprises a silicone.

Further, the waterproof battery further comprises a flange plate, and the flange plate is connected to the inner part of the outer cylinder and located between the battery and the first sealant.

Further, the flange plate comprises an annular plate body and a cylinder section connected with the inner edge of the annular plate body, a wire outlet hole is formed in the side wall of the cylinder section, and a wire sequentially penetrates through the annular plate body, the cylinder section and the wire outlet hole.

Further, one side of the barrel section far away from the annular disc body is provided with a second opening part, and the waterproof battery further comprises a sealing cover, and the sealing cover seals the second opening part.

Further, the waterproof battery further comprises a sealing gasket, the sealing gasket is inserted into the cylinder section and in interference fit with the inner wall of the cylinder section, a wire passing hole for the wire to pass through is formed in the sealing gasket, and the sealing gasket is located between the wire outlet hole and the battery.

Further, a plurality of lugs are arranged on the inner side wall of the outer barrel at intervals, a first connecting hole is formed in each lug, a second connecting hole is formed in the annular disc body, the waterproof battery further comprises a fastener, and the fastener penetrates through the first connecting hole and the second connecting hole to fix the annular disc body and the outer barrel.

Further, the first sealant is provided with a cavity for accommodating the barrel section.

Further, the battery comprises a battery block, an insulating plate and a protective plate, wherein the insulating plate is positioned between the battery block and the protective plate, and the lead is electrically connected with the protective plate.

Further, the battery block is a plurality of, and the battery still includes first connection sheetmetal and second connection sheetmetal, and first connection sheetmetal is connected with the anodal and the protection shield electricity of a plurality of battery blocks, and the second connection sheetmetal is connected with the negative pole and the protection shield electricity of a plurality of battery blocks.

By applying the technical scheme of the utility model, the first end of the outer barrel is provided with the first opening part, the second end is a closed end, and the battery is arranged in the outer barrel through the first opening part. The first end of the wire is connected with the battery, and the second end of the wire extends out of the outer cylinder through the first opening part. The first sealant is filled in the outer cylinder and is positioned between the first opening part and the battery, and the second sealant is filled between the first opening part and the first sealant and is used for sealing the first opening part. Through the arrangement, the battery is firstly arranged in the outer barrel, the lead is led out from the first opening, the first glue injection is carried out on the inner part of the outer barrel through the first opening, namely, the first sealant is formed, and when the first sealant is solidified, the second glue injection is carried out, namely, the second sealant is formed. Through twice injecting glue, can realize waterproof effectively to the injecting glue can make the inside of first sealing gum and urceolus and the inside of second sealing gum and urceolus all close contact, can further improve waterproof effect. Therefore, the technical scheme of the application effectively solves the problem of poor waterproof performance of the battery in the related technology.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows an exploded structural schematic view of an embodiment of a waterproof battery according to the present utility model;

fig. 2 is a schematic perspective view showing a flange of the waterproof battery of fig. 1;

fig. 3 is an exploded structural view showing a part of the structure of the waterproof battery of fig. 1;

fig. 4 is a schematic perspective view showing the waterproof battery of fig. 1;

fig. 5 shows a schematic cross-sectional view of the waterproof battery of fig. 4.

Wherein the above figures include the following reference numerals:

10. an outer cylinder; 11. a first opening portion; 12. a lug; 121. a first connection hole; 20. a battery; 21. a battery block; 22. an insulating plate; 23. a protective plate; 24. a first connection metal sheet; 25. a second connecting metal sheet; 30. a first sealant; 40. a second sealant; 50. a wire; 60. a flange plate; 61. an annular disc body; 611. a second connection hole; 62. a barrel section; 621. a wire outlet hole; 622. a second opening portion; 70. sealing cover; 80. and a sealing gasket.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

As shown in fig. 1, 4 and 5, in the present embodiment, the waterproof battery includes: the battery pack comprises an outer barrel 10, a battery 20, a first sealant 30, a second sealant 40 and a wire 50. The outer tube 10 has a first opening 11 at a first end and a closed end at a second end of the outer tube 10. The battery 20 is mounted inside the outer tub 10. The first sealant 30 is filled in the outer tub 10 at one end of the battery 20 facing the first opening 11, and a sealed space is left between the first end of the outer tub 10. The second sealant 40 fills the sealing space to be combined with the first sealant 30 into a two-layer sealing structure that seals the first opening 11. The lead 50 is connected to the battery 20 at a first end thereof, and the second end of the lead 50 passes through the first sealant 30 and the second sealant 40 and protrudes from the outer can 10.

By applying the technical scheme of the embodiment, the first end of the outer barrel 10 is provided with a first opening part 11, the second end is a closed end, and the battery 20 is arranged in the outer barrel 10 through the first opening part 11. The first end of the lead 50 is connected to the battery 20, and the second end of the lead 50 protrudes from the outer tub 10 through the first opening 11. The first sealant 30 is filled in the interior of the outer can 10 between the first opening 11 and the battery 20, and the second sealant 40 is filled between the first opening 11 and the first sealant 30 and closes the first opening 11. Through the above arrangement, the battery 20 is first mounted in the outer can 10, the lead 50 is led out from the first opening 11, and then the first glue injection is performed to the inner part of the outer can 10 through the first opening 11, namely, the first glue seal 30 is formed, and when the first glue seal 30 is solidified, the second glue injection is performed, namely, the second glue seal 40 is formed. Through twice injecting glue, can realize waterproof effectively to the injecting glue can make the inner wall of first sealing gum 30 and urceolus 10 and the inside of second sealing gum 40 and urceolus 10 all in close contact, can further improve waterproof effect. Therefore, the technical scheme of the embodiment effectively solves the problem of poor waterproof performance of the battery in the related technology.

Specifically, the whole outer barrel 10 in the embodiment is formed by injection molding, a positioning column is arranged in the outer barrel 10, and a silica gel layer is adhered to the inner wall of the outer barrel 10, so that the waterproof and anti-impact effects can be better achieved.

As shown in fig. 1, 4 and 5, in the present embodiment, the first sealant 30 includes an epoxy sealant, and the second sealant 40 includes a silicone gel. The setting of epoxy sealant and silica gel can block up first opening 11 effectively, and then can prevent that steam from entering into the inside of urceolus 10, and epoxy sealant and silica gel's cost is lower simultaneously, makes waterproof battery's manufacturing cost also lower like this.

The silica gel is used as the last seal, the effect of the silica gel is waterproof and ageing-resistant, on the other hand, the epoxy sealant is excellent in structure and high in hardness, the problem of wire core breakage easily occurs when the wire 50 shakes, the silica gel is used for sealing, the problem of stress concentration of the wire 50 caused by swinging of the wire 50 can be reduced according to the thickness design length of the wire, the fiber core breakage is reduced, and the silica gel can be ageing-resistant, water vapor and the like.

As shown in fig. 1, 2 and 5, in the present embodiment, the waterproof battery further includes a flange 60, and the flange 60 is connected inside the outer can 10 and between the battery 20 and the first sealant 30. The flange 60 can be fixed to the battery 20, and can block the first sealant 30, so that the first sealant 30 can be prevented from directly flowing to the battery 20.

As shown in fig. 1, 2 and 5, in the present embodiment, the flange 60 includes an annular disc 61 and a barrel section 62 connected to an inner edge of the annular disc 61, and a wire outlet 621 is provided on a side wall of the barrel section 62, and the wire 50 sequentially passes through the annular disc 61, the barrel section 62 and the wire outlet 621. The wire 50 can be penetrated out from the central hole of the annular disc body 61, can extend into the barrel section 62 and be penetrated out through the wire outlet hole 621, namely, the wire 50 is bent, so that after being sealed by the first sealant 30 and the second sealant 40, the fixing effect of the wire 50 is better, and the wire is not easy to be pulled and damaged.

As shown in fig. 1, 2 and 5, in the present embodiment, a second opening 622 is provided on a side of the cylindrical section 62 away from the annular disc 61, and the waterproof battery further includes a sealing cover 70, the sealing cover 70 sealing the second opening 622. The second opening 622 is simple in structure and convenient to install, and the sealing cover 70 can effectively seal the second opening 622. Specifically, the provision of the second opening 622 can facilitate the installation of other structures into the barrel section 62 and can be pressed by the seal cap 70.

As shown in fig. 1 and 5, in the present embodiment, the waterproof battery further includes a gasket 80, the gasket 80 is inserted into the barrel section 62 and is in interference fit with the inner wall of the barrel section 62, a wire passing hole through which the wire 50 passes is provided on the gasket 80, and the gasket 80 is located between the wire outlet hole 621 and the battery 20. The provision of the gasket 80 can further prevent the first sealant 30 from flowing to the battery 20, and thus can prevent the first sealant 30 from contacting the battery 20.

As shown in fig. 3, in the present embodiment, a plurality of lugs 12 are provided on the inner side wall of the outer tub 10 at intervals, a first connection hole 121 is provided on each lug 12, a second connection hole 611 is provided on the annular disk body 61, and the waterproof battery further includes a fastener penetrating into the first connection hole 121 and the second connection hole 611 to fix the annular disk body 61 and the outer tub 10. The lug 12 has a simple structure, and by being engaged with the annular disk body 61, the fixation of the flange 60 can be effectively realized, and the stability of the position of the flange 60 can be ensured.

As shown in fig. 1 to 5, in the present embodiment, the first sealant 30 is provided with a cavity accommodating the barrel section 62. The first sealant 30 is disposed around the outer periphery of the barrel section 62, so that the wire outlet hole 621 can be effectively plugged, and of course, in order to prevent the first sealant 30 from entering the wire outlet hole 621, foam is disposed at the wire outlet hole 621, so that the first sealant 30 can be further prevented from entering the wire outlet hole 621.

As shown in fig. 1 to 5, in the present embodiment, the battery 20 includes a battery block 21, an insulating plate 22, and a protection plate 23, the insulating plate 22 is located between the battery block 21 and the protection plate 23, and the lead 50 is electrically connected to the protection plate 23. The insulating plate 22 can effectively separate the battery block 21 from the protective plate 23, prevent a short circuit, and control the battery block 21, that is, charge/discharge control, by the protective plate 23. Specifically, the protection plate 23 includes an FPC. The protection plate 23 mainly controls the charge and discharge and the temperature and the electric quantity of the battery 20, and the surface sprayed with the three-proofing paint can perform primary waterproof and insulation, which is the first-stage waterproof.

As shown in fig. 1 to 5, in the present embodiment, the battery block 21 is plural, the battery 20 further includes a first connection metal sheet 24 and a second connection metal sheet 25, the first connection metal sheet 24 is electrically connected with the positive electrodes and the protection plates 23 of the plural battery blocks 21, and the second connection metal sheet 25 is electrically connected with the negative electrodes and the protection plates 23 of the plural battery blocks 21. The plurality of battery blocks 21 can increase the capacity of the battery 20, specifically, in the present embodiment, the number of battery blocks 21 is four, and the shapes of the first connection metal sheets 24 and the second connection metal sheets 25 are the same and are all bar-shaped metal sheets arranged in a crossing manner.

Specifically, the first connection metal sheet 24 and the second connection metal sheet 25 are both made of nickel sheets. The battery block 21 is a lithium battery.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A waterproof battery, characterized by comprising:

an outer cylinder (10), wherein a first end of the outer cylinder (10) is provided with a first opening (11), and a second end of the outer cylinder (10) is a closed end;

a battery (20) mounted inside the outer tube (10);

the first sealant (30) is filled in the outer cylinder (10), is positioned at one end of the battery (20) facing the first opening part (11), and leaves a sealing space with the first end of the outer cylinder (10);

the second sealant (40) is filled in the sealing space to be combined with the first sealant (30) into a sealing structure for sealing the first opening (11) in two layers;

and a lead (50) with a first end connected with the battery (20), and a second end of the lead (50) passing through the first sealant (30) and the second sealant (40) and extending out of the outer cylinder (10).

2. The waterproof battery according to claim 1, wherein the first sealant (30) comprises an epoxy sealant and the second sealant (40) comprises a silicone gel.

3. The waterproof battery according to claim 1, characterized in that it further comprises a flange (60), said flange (60) being connected inside said outer tub (10) and being located between said battery (20) and said first sealant (30).

4. A waterproof battery according to claim 3, wherein the flange plate (60) comprises an annular plate body (61) and a barrel section (62) connected with the inner edge of the annular plate body (61), a wire outlet hole (621) is formed in the side wall of the barrel section (62), and the wire (50) sequentially passes through the annular plate body (61), the barrel section (62) and the wire outlet hole (621).

5. The waterproof battery according to claim 4, characterized in that a side of the barrel section (62) remote from the annular disc body (61) is provided with a second opening (622), the waterproof battery further comprising a sealing cover (70), the sealing cover (70) sealing off the second opening (622).

6. The waterproof battery according to claim 4, further comprising a gasket (80), wherein the gasket (80) is inserted into the barrel section (62) and is in interference fit with the inner wall of the barrel section (62), a wire through hole through which the wire (50) passes is formed in the gasket (80), and the gasket (80) is located between the wire through hole (621) and the battery (20).

7. The waterproof battery according to claim 4, wherein a plurality of lugs (12) are arranged on the inner side wall of the outer cylinder (10) at intervals, a first connecting hole (121) is arranged on each lug (12), a second connecting hole (611) is arranged on the annular disc body (61), and a fastener is arranged in the first connecting hole (121) and the second connecting hole (611) in a penetrating manner to fix the annular disc body (61) and the outer cylinder (10).

8. The waterproof battery according to claim 4, characterized in that the first sealant (30) is provided with a cavity housing the barrel section (62).

9. The waterproof battery according to claim 1, wherein the battery (20) comprises a battery block (21), an insulating plate (22) and a protection plate (23), the insulating plate (22) being located between the battery block (21) and the protection plate (23), the lead (50) being electrically connected with the protection plate (23).

10. The waterproof battery according to claim 9, wherein the battery block (21) is plural, the battery (20) further comprises a first connection metal sheet (24) and a second connection metal sheet (25), the first connection metal sheet (24) is electrically connected with the anodes of the plural battery blocks (21) and the protection plate (23), and the second connection metal sheet (25) is electrically connected with the cathodes of the plural battery blocks (21) and the protection plate (23).

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