CN211376724U

CN211376724U - Battery box

Info

Publication number: CN211376724U
Application number: CN201922450344.3U
Authority: CN
Inventors: 胡庆书; 申江龙; 宿斌; 申力方
Original assignee: Yinlong New Energy Co Ltd
Current assignee: Yinlong New Energy Co Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-08-28
Anticipated expiration: 2029-12-27

Abstract

The utility model provides a battery box, which comprises a shell, a protecting cover, an annular sealing gasket and a sealing ring, wherein the shell is provided with a first accommodating cavity and a first matching surface, and the first matching surface is arranged around the opening of the first accommodating cavity; the protecting cover is used for plugging the opening and is provided with a second matching surface which is arranged opposite to the first matching surface; the annular sealing gasket is arranged between the first matching surface and the second matching surface and provided with an annular groove surrounding the opening; at least one part of the sealing ring is positioned in the annular groove, and the circumferential shape of the sealing ring is matched with that of the annular groove; wherein, under the condition that the protecting cover is separated from the shell, a part of the sealing ring protrudes out of the surface of the sealing gasket; the first and second mating surfaces clamp the annular seal and the gasket when the cover and housing are connected. By adopting the scheme, the sealing performance and the waterproofness of the battery box are improved.

Description

Battery box

Technical Field

The utility model relates to a battery box technical field particularly, relates to a battery box.

Background

Be used for placing electrical components such as battery module in the shell structure of battery box to realize integrated and protection. In order to ensure that the battery box can reliably operate in different environments, high waterproofness is required, and the shell structure is required to have good sealing performance, but the existing battery box still has the problem of unsatisfactory sealing effect.

Disclosure of Invention

The utility model provides a battery box to improve the leakproofness of battery box.

In order to achieve the above object, the utility model provides a battery box, include: a housing having a first receiving cavity and a first mating face disposed around an opening of the first receiving cavity; the protective cover is used for plugging the opening and is provided with a second matching surface which is arranged opposite to the first matching surface; an annular gasket disposed between the first mating surface and the second mating surface, the annular gasket having an annular groove disposed around the opening; at least one part of the sealing ring is positioned in the annular groove, and the circumferential shape of the sealing ring is matched with that of the annular groove; under the condition that the protecting cover is separated from the shell, a part of the sealing ring protrudes out of the surface of the sealing gasket; under the circumstances that the protecting cover with the shell is connected, first fitting surface with the second fitting surface presss from both sides tightly the annular seal pad with the sealing washer.

Further, the battery box still includes: the annular convex rib is arranged at the bottom of the annular groove in a protruding mode in the circumferential direction of the annular groove, a gap is reserved between the annular convex rib and the side wall of the annular groove, and the annular convex rib is abutted to the sealing ring.

Further, the annular convex rib and the annular sealing gasket are of an integral structure.

Further, the annular groove is located on a side of the annular sealing gasket facing the protective cover.

Further, the protecting cover comprises a cover body and a flange arranged on the periphery of the cover body, and the second matching surface is located on the cover body.

Furthermore, the cover body is provided with a second accommodating cavity corresponding to the first accommodating cavity, and a reinforcing convex rib is arranged on the side wall of the second accommodating cavity corresponding to the first accommodating cavity.

Further, the battery box still includes a plurality of nuts and a plurality of bolt, and is a plurality of the nut distributes the periphery of opening, and is a plurality of the bolt with a plurality of the nut one-to-one is connected, in order to fix the protecting cover on the shell.

Further, the first accommodating cavity comprises a first cavity and a second cavity which are communicated with each other, wherein the volume of the first cavity is larger than that of the second cavity, the first cavity is used for accommodating a plurality of battery modules, and the second cavity is used for accommodating a battery management slave module.

Further, the battery box still includes: and the pressure valve is arranged on the shell and is opened when the pressure in the first accommodating cavity is greater than a preset value.

Further, the battery box still includes: a handle disposed on the housing; and the grounding connector is arranged on the shell.

The technical scheme of the utility model is applied, a battery box is provided, the battery box comprises a shell, a protecting cover, an annular sealing gasket and a sealing ring, the shell is provided with a first accommodating cavity and a first matching surface, and the first matching surface is arranged around the opening of the first accommodating cavity; the protecting cover is used for plugging the opening and is provided with a second matching surface which is arranged opposite to the first matching surface; the annular sealing gasket is arranged between the first matching surface and the second matching surface and provided with an annular groove surrounding the opening; at least one part of the sealing ring is positioned in the annular groove, and the circumferential shape of the sealing ring is matched with that of the annular groove; wherein, under the condition that the protecting cover is separated from the shell, a part of the sealing ring protrudes out of the surface of the sealing gasket; the first and second mating surfaces clamp the annular seal and the gasket when the cover and housing are connected. Adopt this scheme, because partly protrusion in the surface of sealed pad of sealing washer to the surface area of annular seal pad is great, at open-ended whole circumference after the assembly like this, sealing material and first fitting surface and the equal reliable contact of second fitting surface, and area of contact is big, thereby has guaranteed sealed reliability, has improved the leakproofness and the waterproof nature of battery box.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural diagram of a battery box provided by an embodiment of the present invention;

FIG. 2 shows a cross-sectional view of the battery box of FIG. 1 at position A-A;

fig. 3 shows an enlarged view of the battery box in fig. 2 in position B;

FIG. 4 shows an enlarged view of FIG. 3 at position C;

fig. 5 shows an exploded view of the battery box of fig. 1;

fig. 6 shows a partial view of the battery box in fig. 5.

Wherein the figures include the following reference numerals:

10. a housing; 11. a first accommodating chamber; 20. a protective cover; 21. a cover body; 22. flanging; 23. a second accommodating chamber; 24. reinforcing the convex ribs; 30. an annular seal; 31. an annular groove; 40. a seal ring; 50. an annular convex rib; 61. a nut; 62. a bolt; 71. a handle; 72. a ground connection; 73. and (5) reinforcing the structure.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in the drawings, embodiments of the present invention provide a battery box, including: a housing 10, the housing 10 having a first accommodation chamber 11 and a first mating face, the first mating face being disposed around an opening of the first accommodation chamber 11; the protecting cover 20 is used for sealing the opening, the protecting cover 20 is provided with a second matching surface, and the second matching surface is opposite to the first matching surface; an annular seal gasket 30 for being disposed between the first mating surface and the second mating surface, the annular seal gasket 30 having an annular groove 31 disposed around the opening; a seal ring 40, at least a part of the seal ring 40 is positioned in the annular groove 31, and the circumferential shape of the seal ring 40 is matched with the circumferential shape of the annular groove 31; wherein, under the condition that the protecting cover 20 is separated from the shell 10, a part of the sealing ring 40 protrudes out of the surface of the sealing gasket; the first and second mating surfaces clamp the annular seal 30 and the seal ring 40 with the protective cover 20 and the housing 10 connected.

The technical scheme of the utility model is applied, a battery box is provided, the battery box comprises a shell 10, a protecting cover 20, an annular sealing gasket 30 and a sealing ring 40, the shell 10 is provided with a first accommodating cavity 11 and a first matching surface, and the first matching surface is arranged around the opening of the first accommodating cavity 11; the protecting cover 20 is used for sealing the opening, the protecting cover 20 is provided with a second matching surface, and the second matching surface is arranged opposite to the first matching surface; an annular seal 30 is arranged between the first matching surface and the second matching surface, and the annular seal 30 is provided with an annular groove 31 surrounding the opening; at least a portion of the seal ring 40 is located within the annular groove 31, the circumferential shape of the seal ring 40 matching the circumferential shape of the annular groove 31; wherein, under the condition that the protecting cover 20 is separated from the shell 10, a part of the sealing ring 40 protrudes out of the surface of the sealing gasket; the first and second mating surfaces clamp the annular seal 30 and the seal ring 40 with the protective cover 20 and the housing 10 connected. By adopting the scheme, because a part of the sealing ring 40 protrudes out of the surface of the sealing gasket and the surface area of the annular sealing gasket 30 is larger, the sealing material is reliably contacted with the first matching surface and the second matching surface in the whole circumferential direction of the opening after the assembly, and the contact area is large, so that the sealing reliability is ensured, and the sealing property and the water resistance of the battery box are improved.

In this embodiment, the battery box further includes: the annular rib 50 is arranged at the bottom of the annular groove 31 in a protruding manner along the circumferential direction of the annular groove 31, a gap is formed between the annular rib 50 and the side wall of the annular groove 31, and the annular rib 50 is abutted against the sealing ring 40. Through the annular convex rib 50, after the assembly, the annular convex rib 50 can apply pressure to the sealing ring 40, so that the sealing ring 40 is in close contact with the protecting cover 20, and the sealing effect is improved.

In the present embodiment, the annular bead 50 and the annular seal gasket 30 are of a unitary structure. In other embodiments, the annular bead 50 and the annular seal 30 may be provided as a separate structure.

In this embodiment, the annular groove 31 is located on the side of the annular seal 30 facing the protective cover 20, which facilitates viewing and assembly.

In the present embodiment, the protecting cover 20 includes a cover body 21 and a flange 22 disposed at the periphery of the cover body 21, and the second mating surface is located on the cover body 21. With the above arrangement, the structural strength of the protective cover 20 can be improved.

In the present embodiment, the cover 21 has a second accommodating cavity 23 corresponding to the first accommodating cavity 11, and a side wall of the second accommodating cavity 23 corresponding to the first accommodating cavity 11 has a reinforcing rib 24. The second accommodating cavity 23 is convenient for accommodating electrical components, and the structural strength can be improved by reinforcing the convex ribs 24, so that deformation is avoided. The reinforcing bead 24 may be provided in plurality.

In this embodiment, the battery box further includes a plurality of nuts 61 and a plurality of bolts 62, the plurality of nuts 61 are distributed on the periphery of the opening, and the plurality of bolts 62 are connected with the plurality of nuts 61 in a one-to-one correspondence to fix the protective cover 20 to the housing 10. A reliable connection of the housing 10 and the protective cover 20 can be achieved by the above arrangement. In this embodiment, the nut 61 is welded to the housing 10, so that the nut 61 is not clamped, and assembly is facilitated.

In this embodiment, the first accommodating cavity 11 includes a first cavity and a second cavity that are communicated with each other, wherein the volume of the first cavity is greater than the volume of the second cavity, the first cavity is used for placing a plurality of battery modules, and the second cavity is used for placing a battery management slave control module. This facilitates the arrangement of a plurality of electrical components.

In this embodiment, the battery box further includes: and a pressure valve provided in the housing 10, the pressure valve being opened when the pressure in the first receiving chamber 11 is greater than a predetermined value. Thus, the danger caused by the overhigh pressure in the first accommodating cavity 11 can be avoided, and the safety is improved.

In this embodiment, the battery box further includes: a handle 71 provided on the housing 10; and a ground connector 72 provided on the housing 10. The handle 71 is provided to facilitate carrying of the battery box. The ground connection is facilitated by a ground connector 72.

Optionally, two opposite side walls of the second cavity are respectively provided with a first through hole and a second through hole, wherein the first through hole is used for penetrating a high-voltage line, and the second through hole is used for penetrating an acquisition line. The outer shell 10 is also provided with a reinforcing structure 73 to improve the strength and load-bearing capacity of the outer shell 10.

By adopting the scheme, the battery box comprises a shell 10, a protective cover 20, an annular sealing gasket 30 and a sealing ring 40, wherein the shell 10 is provided with a first accommodating cavity 11 and a first matching surface, and the first matching surface is arranged around an opening of the first accommodating cavity 11; the protecting cover 20 is used for sealing the opening, the protecting cover 20 is provided with a second matching surface, and the second matching surface is arranged opposite to the first matching surface; an annular seal 30 is arranged between the first matching surface and the second matching surface, and the annular seal 30 is provided with an annular groove 31 surrounding the opening; at least a portion of the seal ring 40 is located within the annular groove 31, the circumferential shape of the seal ring 40 matching the circumferential shape of the annular groove 31; wherein, under the condition that the protecting cover 20 is separated from the shell 10, a part of the sealing ring 40 protrudes out of the surface of the sealing gasket; the first and second mating surfaces clamp the annular seal 30 and the seal ring 40 with the protective cover 20 and the housing 10 connected. Because a part of the seal ring 40 protrudes from the surface of the gasket and the surface area of the annular gasket 30 is large, the sealing material reliably contacts with both the first mating surface and the second mating surface in the entire circumferential direction of the opening after assembly, and the contact area is large, thereby ensuring the reliability of sealing and improving the sealing property and the water resistance of the battery box.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

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 according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship 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 of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

Claims

1. A battery box, comprising:

a housing (10), the housing (10) having a first receiving chamber (11) and a first mating face, the first mating face being disposed around an opening of the first receiving chamber (11);

the protective cover (20), the protective cover (20) is used for sealing the opening, the protective cover (20) has a second matching surface, and the second matching surface is arranged opposite to the first matching surface;

an annular seal (30) disposed between the first mating surface and the second mating surface, the annular seal (30) having an annular groove (31) disposed around the opening;

a seal ring (40), at least a portion of the seal ring (40) being located within the annular groove (31), the seal ring (40) having a circumferential shape that matches a circumferential shape of the annular groove (31);

wherein, under the condition that the protective cover (20) is separated from the shell (10), a part of the sealing ring (40) protrudes out of the surface of the sealing gasket; under the circumstances that protecting cover (20) with shell (10) are connected, first fitting surface with the second fitting surface presss from both sides tightly annular seal pad (30) with sealing washer (40).

2. The battery box of claim 1, further comprising:

annular protruding muscle (50), follow the circumference protrusion setting of annular groove (31) is in the tank bottom of annular groove (31), annular protruding muscle (50) with have the clearance between the lateral wall of annular groove (31), annular protruding muscle (50) with sealing washer (40) butt.

3. A battery case according to claim 2, wherein the annular bead (50) and the annular seal (30) are of unitary construction.

4. A battery case according to claim 1, characterized in that the annular groove (31) is located on the side of the annular gasket (30) facing the protective cover (20).

5. The battery box according to claim 1, characterized in that the protective cover (20) comprises a cover body (21) and a flange (22) provided at the periphery of the cover body (21), and the second mating surface is located on the cover body (21).

6. The battery box according to claim 5, characterized in that the cover body (21) has a second accommodating chamber (23) corresponding to the first accommodating chamber (11), and a side wall of the second accommodating chamber (23) corresponding to the first accommodating chamber (11) has a reinforcing rib (24).

7. The battery box according to claim 1, characterized in that the battery box further comprises a plurality of nuts (61) and a plurality of bolts (62), the plurality of nuts (61) are distributed on the periphery of the opening, and the plurality of bolts (62) are connected with the plurality of nuts (61) in a one-to-one correspondence to fix the protective cover (20) to the housing (10).

8. The battery box according to claim 1, wherein the first accommodating cavity (11) comprises a first cavity and a second cavity which are communicated with each other, wherein the volume of the first cavity is larger than that of the second cavity, the first cavity is used for accommodating a plurality of battery modules, and the second cavity is used for accommodating a battery management slave module.

9. The battery box of claim 8, further comprising:

a pressure valve provided on the housing (10), the pressure valve being opened in the case where the pressure in the first accommodation chamber (11) is greater than a predetermined value.

10. The battery box of claim 1, further comprising:

a handle (71) provided on the housing (10);

a ground contact (72) disposed on the housing (10).