CN217426953U

CN217426953U - Casing seal structure and energy storage equipment

Info

Publication number: CN217426953U
Application number: CN202220511925.2U
Authority: CN
Inventors: 郑司根; 李俊; 张士礼
Original assignee: Sungrow Power Supply Co Ltd
Current assignee: Sungrow Power Supply Co Ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-09-13
Anticipated expiration: 2032-03-09

Abstract

The utility model provides a casing seal structure and energy storage equipment relates to electrical equipment technical field, and casing seal structure includes casing, apron, valve member, clamp plate, double-screw bolt and first nut, be provided with the confession on the apron the valve opening that the valve member passed, the apron with the clamp plate is located respectively the casing outside and inboard, the one end of double-screw bolt with the clamp plate is connected, the other end of double-screw bolt passes in proper order the casing with behind the apron with first nut is connected in order to pass through first nut compresses tightly the apron, the valve member install in the valve opening passes in proper order the casing with the clamp plate. The cover plate and the pressing plate move relatively by screwing the first screw cap, so that two surfaces of the shell are stressed, the shell is pressed between the cover plate and the pressing plate, the shell does not directly bear force, and the plastic deformation of the shell is avoided.

Description

Casing seal structure and energy storage equipment

Technical Field

The utility model relates to an electrical equipment technical field particularly, relates to a shell seal structure and energy storage equipment.

Background

The battery is an important component of the energy storage system, one or more batteries are arranged in the shell, namely in the battery box, in order to improve the safety of the internal battery, a valve hole is usually required to be formed in the battery box, then a valve member (such as an explosion-proof valve) is arranged in the valve hole through a cover plate, and a sealing member is pressed on the outer side of the valve hole through the cover plate to realize certain sealing.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems set forth above.

In order to achieve the above purpose, the technical solution of the present invention is as follows:

the utility model provides a shell body seal structure, includes casing, apron, valve member, clamp plate, double-screw bolt and first nut, be provided with the confession on the apron the valve opening that valve member passed, the apron with the clamp plate is located respectively the casing outside and inboard, the one end of double-screw bolt with the clamp plate is connected, the other end of double-screw bolt passes in proper order the casing with behind the apron with first nut is connected in order to pass through first nut compresses tightly the apron, the valve member install in the valve opening passes in proper order the casing with the clamp plate.

The utility model provides a pair of shell body seal structure compares in prior art, has but not confine following beneficial effect to:

can offer the thru hole that corresponds with the valve opening respectively on casing and clamp plate, the casing is offered a lateral wall of thru hole and is marked as the installation wall, during the installation, the apron is located the outside of casing, the clamp plate is located the inboard of casing (the double-screw bolt is connected fixedly with the clamp plate in advance), the clamp plate makes the double-screw bolt pass installation wall and apron back and first nut threaded connection in proper order in the casing, make apron and clamp plate relative motion through screwing up first nut, make installation wall two sides atress, the installation wall is compressed tightly between the two, and the installation wall receives the locking force of first nut not directly, the plastic deformation of installation wall has been avoided, at last valve opening erection joint with valve spare and apron, and pass the thru hole of installation wall and clamp plate in proper order, the thru hole can set up slightly, also can not make the installation wall warp in the installation of valve spare, avoid the casing fracture, the life of casing has been improved.

Furthermore, the studs are arranged on the pressing plate in an array, second through holes corresponding to the studs are formed in the cover plate, and first through holes corresponding to the studs are formed in the shell.

Further, the shell sealing structure further comprises a first sealing ring, the first sealing ring is located between the shell and the cover plate, and the first sealing ring is located on the inner side of each first through hole.

Further, the shell sealing structure further comprises a second sealing ring, the second sealing ring is located between the shell and the cover plate, and the second sealing ring is located on the outer side of each first through hole.

Furthermore, a third sealing structure is arranged between the first screw cap and the second through hole, and a fourth sealing structure is arranged between the valve piece and the valve hole of the cover plate.

Furthermore, a second nut is connected to the stud in a threaded manner, and the pressing plate abuts against the inner side wall of the shell through the second nut.

Furthermore, at least one side of the pressing plate is provided with a convex structure or a bending structure.

Further, the pressing plate is a metal piece.

Furthermore, one side of the cover plate, which faces the shell, is provided with a positioning groove matched with the first sealing ring.

Additionally, the utility model also provides an energy storage equipment, include as before the shell body seal structure.

Since the technical improvement and the technical effect of the energy storage device are the same as those of the housing sealing structure, the energy storage device will not be described in detail.

Drawings

Fig. 1 is an exploded view of a housing sealing structure according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a pressing plate according to an embodiment of the present invention;

fig. 3 is a schematic view of the pressure distribution of the pressing plate according to the embodiment of the present invention.

Description of the reference numerals:

1. a housing; 2. a cover plate; 3. a valve member; 4. pressing a plate; 5. a stud; 6. a first nut; 7. through holes; 8. a first through hole; 9. a second through hole; 10. a first seal ring; 11. a second nut; 12. and (5) a bending structure.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description of the present invention and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Also, in the drawings, the Z-axis represents a vertical, i.e., up-down position, and a positive direction of the Z-axis (i.e., an arrow direction of the Z-axis) represents up and a negative direction of the Z-axis (i.e., a direction opposite to the positive direction of the Z-axis) represents down.

It should also be noted that the Z-axis is meant to facilitate the description of the invention and to simplify the description, and is not meant to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and is not to be construed as limiting the invention.

As shown in fig. 1 to 3, the utility model discloses a casing seal structure of embodiment, including casing 1, apron 2, valve member 3, clamp plate 4, double-screw bolt 5 and first nut 6, be provided with the confession on the apron 2 the valve opening that valve member 3 passed, apron 2 with clamp plate 4 is located respectively the casing 1 outside and inboard, the one end of double-screw bolt 5 with clamp plate 4 is connected, the other end of double-screw bolt 5 passes in proper order casing 1 with 2 backs of apron with first nut 6 is connected, with pass through first nut 6 compresses tightly apron 2, valve member 3 install in the valve opening passes in proper order casing 1 with clamp plate 4.

In this embodiment, through holes 7 corresponding to the valve holes may be respectively formed on the housing 1 and the pressing plate 4, one side wall of the housing 1 where the through holes 7 are formed is referred to as a mounting wall, when mounting, the cover plate 2 is located on the outer side of the housing 1, the pressing plate 4 is located on the inner side of the housing 1 (the stud 5 is connected and fixed with the pressing plate 4 in advance), the stud 5 sequentially passes through the mounting wall and the cover plate 2 and then is in threaded connection with the first nut 6, the cover plate 2 and the pressing plate 4 are relatively moved by screwing the first nut 6, so that the two sides of the mounting wall are stressed, the mounting wall is compressed between the two, and the mounting wall does not directly receive the locking force of the first nut 6, the upper side of the mounting wall receives the downward uniform pressure given by the cover plate 2, correspondingly, the lower side of the mounting wall receives the upward uniform pressure given by the pressing plate 4 as shown in fig. 3, the plastic deformation of the mounting wall is avoided, and finally the valve element 3 is mounted and connected with the valve hole of the cover plate 2, and the through holes 7 sequentially penetrate through the mounting wall and the pressing plate 4, the through holes 7 can be slightly larger, the mounting wall cannot be deformed in the mounting process of the valve piece 3, the shell 1 is prevented from cracking, and the service life of the shell 1 is prolonged.

The inner side of the housing 1 refers to a side of the mounting wall in the positive direction of the Z axis, and the inner side of the housing 1 refers to a side of the mounting wall in the negative direction of the Z axis.

Optionally, referring to fig. 1, a plurality of studs 5 are arranged in an array on the pressure plate 4, a second through hole 9 corresponding to each stud 5 is arranged on the cover plate 2, and a first through hole 8 corresponding to each stud 5 is arranged on the housing 1. The studs are arranged in the array, so that the pressing plate 4, the mounting wall and the cover plate 2 are connected more stably.

Alternatively, the studs 5 may be disposed at the corners of the pressing plate 4, the second through holes 9 may be disposed at the corners of the cover plate 2, and the first through holes 8 may be disposed on the casing 1.

Here, as shown in fig. 1, four studs 5 are provided at four corners of the pressing plate 4, and four second through holes 9 are provided at four corners of the cover plate 2, and accordingly, the shape of the quadrangle in which the four first through holes 8 are formed is identical to the shape of the quadrangle in which the four studs 5 are formed, and is rectangular. Through the edge design of the stud 5 and the second through hole 9, the installation can be realized by using the cover plate 2 and the pressing plate 4 with smaller size and area.

It is understood that the shapes of the cover plate 2 and the pressure plate 4 are not limited to the rectangular shape, but may be other shapes such as a circle, a diamond, etc.

Optionally, a third sealing structure is arranged between the first nut 6 and the second through hole 9, and a fourth sealing structure is arranged between the valve member 3 and the valve hole of the cover plate 2.

Here, since the valve element 3 is installed at the valve hole of the cover plate 2, for example, one end of the valve element 3 penetrates through the valve hole of the cover plate 2, passes through the through hole of the installation wall, and then enters the through hole 7 of the pressure plate 4 until the other end of the valve element 3 abuts against the cover plate 2, and then stops. A third sealing structure may be provided between the other end of valve element 3 and cover plate 2 so that gas and liquid do not pass between valve element 3 and the valve hole of cover plate 2. A third sealing structure may be provided between the first nut 6 and the second through hole 9 so that gas and liquid do not pass through the second through hole 9.

The valve element 3 of the present embodiment may be an explosion-proof valve, and may be used to balance the air pressure in the housing 1, thereby improving the installation performance.

Wherein the third and second sealing structures may be transparent pads.

Optionally, referring to fig. 1, the housing sealing structure further includes a first sealing ring 10, the first sealing ring 10 is located between the housing 1 and the cover plate 2, and the first sealing ring 10 is located inside each of the first through holes 8.

Here, the first sealing ring 10 is compressed between the mounting wall and the cover plate 2 by the first nut 6, and the first sealing ring 10 is located inside each first through hole 8 and inside each second through hole 9, thus ensuring that gas and liquid do not enter the through hole of the mounting wall from between the mounting wall and the side wall of the cover plate 2, further ensuring the sealing property.

Optionally, a positioning groove matched with the first sealing ring 10 is arranged on one side of the cover plate 2 facing the housing 1.

Here, by providing the positioning groove at the side of the cover plate 2 facing the housing 1, the positioning of the first sealing ring 10 at the beginning is facilitated.

Optionally, the housing sealing structure further includes a second sealing ring (not shown) located between the housing 1 and the cover plate 2, and the second sealing ring is located outside each of the first through holes 8.

Here, the second sealing ring has the same shape as the first sealing ring 10, but the size of the second sealing ring is larger than the size of the first sealing ring 10, the second sealing ring is compressed between the cover plate 2 and the mounting wall, and the second sealing ring is outside each of the plurality of first through holes 8, so that it is ensured that gas and liquid do not enter the first through holes 8 from between the edge of the cover plate 2 and the mounting wall.

Furthermore, a second nut 11 is connected to the stud 5 through a thread, and the pressing plate 4 abuts against the inner side wall of the shell 1 through the second nut 11.

Here, the second nut 11 is in contact with the installation wall, the second nut 11 is screwed on the stud 5 and can move relative to the stud 5, and thus, one end faces of the plurality of second nuts 11, which are far away from the pressing plate 4, are flush, and the uniform stress of the installation wall is ensured.

It will be understood that a sealing gasket may also be provided at an end of the second nut 11 remote from the pressure plate 4, the sealing gasket being sleeved on the stud 5, the sealing gasket being compressed between the second nut 11 and the mounting wall, and sealing of the first through hole 8 also being achieved.

Optionally, the pressure plate 4 is a metal piece.

Here, clamp plate 4 is made for the metalwork or other harder materials, and clamp plate 4 is compared in the casing 1 of injection molding, and clamp plate 4's deformability can be ignored, and like this, first nut 6 makes apron 2 compress tightly when the installation wall, and the final second nut 11 that passes through of power transmits clamp plate 4, because clamp plate 4 can not warp, the installation wall also can not warp.

Optionally, at least one edge of the pressing plate 4 is provided with a protruding structure or a bending structure 12.

Here, by providing the protrusion or the bent structure 12 at the edge of the pressure plate 4, the structural strength of the pressure plate 4 can be enhanced and the weight can be reduced as much as possible.

Additionally, the utility model discloses an energy storage equipment of another embodiment includes as aforesaid shell seal structure.

The terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.

Claims

1. The utility model provides a shell body seal structure, its characterized in that, includes casing (1), apron (2), valve member (3), clamp plate (4), double-screw bolt (5) and first nut (6), be provided with the confession on apron (2) valve opening that valve member (3) passed, apron (2) with clamp plate (4) are located respectively casing (1) outside and inboard, the one end of double-screw bolt (5) with clamp plate (4) are connected, the other end of double-screw bolt (5) passes in proper order casing (1) with apron (2) back with first nut (6) are connected in order to pass through first nut (6) compress tightly apron (2), valve member (3) install in the valve opening passes in proper order casing (1) with clamp plate (4).

2. The housing seal structure according to claim 1, wherein a plurality of the studs (5) are arranged in an array on the pressure plate (4), the cover plate (2) is provided with second through holes (9) corresponding to the studs (5), and the housing (1) is provided with first through holes (8) corresponding to the studs (5).

3. The housing seal structure according to claim 2, further comprising a first seal ring (10), the first seal ring (10) being located between the housing (1) and the cover plate (2), and the first seal ring (10) being located inside each of the first through holes (8).

4. The housing seal structure according to claim 3, characterized by further comprising a second seal ring located between the housing (1) and the cover plate (2), and outside each of the first through holes (8).

5. The housing seal structure according to claim 2, characterized in that a third seal structure is provided between the first nut (6) and the second through hole (9), and a fourth seal structure is provided between the valve member (3) and the valve hole of the cover plate (2).

6. The housing seal structure according to claim 1, characterized in that a second nut (11) is screwed on the stud (5), and the pressure plate (4) abuts against the inner side wall of the housing (1) through the second nut (11).

7. Housing seal according to claim 1, characterised in that at least one side of the pressure plate (4) is provided with a raised or bent structure (12).

8. The housing seal structure according to claim 1, characterized in that the pressure plate (4) is a metal piece.

9. The housing seal according to claim 3, characterized in that the side of the cover plate (2) facing the housing (1) is provided with a positioning groove cooperating with the first sealing ring (10).

10. An energy storage device comprising a housing seal structure according to any one of claims 1 to 9.