CN216960297U

CN216960297U - Battery energy storage system, battery management assembly and PCB protective cover thereof

Info

Publication number: CN216960297U
Application number: CN202123254354.3U
Authority: CN
Inventors: 毛俊杰; 苏金国; 徐波
Original assignee: Sungrow Energy Storage Technology Co Ltd
Current assignee: Sungrow Energy Storage Technology Co Ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-07-12
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses a battery energy storage system, a battery management assembly and a PCB protective cover thereof, wherein the PCB protective cover comprises a cover top wall and a cover side wall fixedly connected with the cover top wall, the cover top wall and the cover side wall jointly enclose an accommodating groove, the PCB protective cover is arranged on a PCB to enable the PCB to be positioned in the accommodating groove, and the cover top wall and/or the cover side wall are/is provided with air holes. So set up, this PCB board protective cover of heat that the PCB board produced can be discharged through the bleeder vent to guarantee the normal heat dissipation of PCB board. In addition, the PCB protective cover covers the PCB, so that the PCB can be prevented from being damaged in a large area when the battery liquid is sprayed, and the protective capability is improved.

Description

Battery energy storage system, battery management assembly and PCB protective cover thereof

Technical Field

The utility model relates to the technical field of support frames, in particular to a battery energy storage system, a battery management assembly and a PCB protective cover of the battery management assembly.

Background

The main element of the battery management system of the energy storage battery is a PCB (printed Circuit board) board 01, as shown in fig. 1, the PCB board 01 is generally fixed by bolts 02, the PCB board 02 is exposed, although heat dissipation is facilitated, no protection is provided, and the battery liquid is easily sprayed onto the PCB board 01 when sprayed, and the PCB board 01 is damaged.

SUMMERY OF THE UTILITY MODEL

In view of the above, a first object of the present invention is to provide a PCB shield cover, which has a structural design that can ensure heat dissipation of a PCB and improve shielding performance, and a second object of the present invention is to provide a battery energy storage system and a battery management assembly including the PCB shield cover.

In order to achieve the first object, the utility model provides the following technical scheme:

the utility model provides a PCB board protective cover, including the lid roof and with lid top wall fixed connection's lid lateral wall, lid roof and lid lateral wall enclose into the holding tank jointly, and this PCB board protective cover locates the PCB board so that the PCB board is located in the holding tank, lid roof and/or the bleeder vent has been seted up to the lid lateral wall.

Preferably, in the above-mentioned PCB board protective cover, still include with lid top wall or lid lateral wall fixed connection's shield cover, the shield cover covers and establishes the bleeder vent, just the circulation hole has been seted up to the lateral wall of shield cover.

Preferably, in the above-mentioned PCB shield cover, a projection of the shield cover on the cover top wall or the cover side wall covers more than 80% of an area of the vent hole.

Preferably, in the above-mentioned PCB shield cover, the PCB shield cover is disposed to be inclined with respect to a horizontal plane, and a first side of the PCB shield cover is disposed to be higher than a second side.

Preferably, in the PCB protective cover, the shielding cover located at the outer side of the top wall is a first shielding cover, and the side wall of the first shielding cover, which is away from the first side of the PCB protective cover, is provided with the circulation hole; alternatively, the first and second liquid crystal display panels may be,

the shielding cover positioned on the inner side of the top cover wall is a second shielding cover, and the side wall of the second shielding cover, which is close to the first side of the PCB protective cover, is provided with the circulation hole.

Preferably, in the PCB protective cover, the shielding cover located outside the cover side wall is a third shielding cover, and the side wall of the third shielding cover away from the cover top wall is provided with the circulation hole; alternatively, the first and second electrodes may be,

the shielding cover positioned on the inner side of the side wall of the cover is a fourth shielding cover, and the side wall of the fourth shielding cover close to the top wall of the cover is provided with the circulation hole.

Preferably, in the above-mentioned PCB shield cover, the cover top wall, the cover side wall and the shield cover are an integral structure.

Preferably, in the above-mentioned PCB protective cover, the PCB protective cover is fixedly connected to the PCB or the supporting member by a screw.

A battery management assembly comprising a PCB board and further comprising a PCB board protective cover as claimed in any one of the above claims.

A battery energy storage system comprises a battery unit and is characterized by further comprising the battery management assembly.

Preferably, in the above battery energy storage system, the PCB protective cover is disposed to be inclined with respect to a horizontal plane, and a first side of the PCB protective cover is higher than a second side;

the first side of the PCB shield cover is closer to the battery cell than the second side.

In the PCB protective cover provided by the utility model, the cover top wall and/or the cover side wall are/is provided with air holes. So set up, this PCB board protective cover can be discharged through the bleeder vent to the heat that the PCB board produced to guarantee the normal heat dissipation of PCB board. In addition, the PCB protective cover covers the PCB, so that the large-area damage of the PCB can be prevented when the battery liquid is sprayed, and the protective capability is improved.

In order to achieve the second object, the utility model further provides a battery management assembly and a battery energy storage system, which include any one of the above PCB protective covers. Because the PCB protective cover has the technical effects, the battery management assembly and the battery energy storage system with the PCB protective cover also have corresponding technical effects.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a prior art PCB mounting;

fig. 2 is a schematic structural diagram of a protective cover of a PCB according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a PCB shield cover according to another embodiment of the present invention;

fig. 4 is a side view of a protective cover for a PCB board according to another embodiment of the present invention;

fig. 5 is a schematic structural diagram of a battery energy storage system according to another embodiment of the utility model;

FIG. 6 is an enlarged view of a portion of the area D in FIG. 5;

fig. 7 is a schematic structural diagram of a battery energy storage system according to another embodiment of the present invention;

fig. 8 is a partially enlarged view of the region F in fig. 7.

In fig. 1:

01-PCB board, 02-bolt;

in fig. 2-8:

1-cover top wall, 2-cover side wall, 3-air hole, 4-cover and 4 a-flow hole;

the battery pack comprises an A-PCB protective cover, a B-supporting part, a C-battery unit and an E-PCB.

Detailed Description

The first purpose of the present invention is to provide a PCB protective cover, the structural design of which can ensure the heat dissipation of the PCB and improve the protective capability, and the second purpose of the present invention is to provide a battery energy storage system and a battery management assembly comprising the above PCB protective cover.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", and "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience of description and simplification of description, but do not indicate or imply that the positions or elements referred to must have specific orientations, be constructed in specific orientations, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 2-4, the PCB shield cover provided in the present application includes a cover top wall 1 and a cover side wall 2 fixedly connected to the cover top wall 1. Specifically, the lid side wall 2 is provided along the circumferential direction of the lid top wall 1. The lid side wall 2 may be provided for one revolution along the circumferential direction of the lid top wall 1, or the lid side wall 2 may extend for less than one revolution along the circumferential direction of the lid top wall 1. The top edge of the cover side wall 2 is fixedly connected with the circumferential edge of the cover top wall 1, and the cover side wall 2 is located below the cover top wall 1 in the normal use process.

The lid top wall 1 encloses into the holding tank with lid lateral wall 2 jointly, and PCB board E is located so that PCB board E is located the holding tank to this PCB board protective cover A cover. Specifically, after the PCB protective cover A covers the PCB E, the PCB E is positioned in the accommodating groove.

The cover top wall 1 and/or the cover side wall 2 are/is provided with air holes 3. So set up, this PCB board protective cover A can be discharged through bleeder vent 3 to the heat that PCB board E produced to guarantee PCB board E's normal heat dissipation. In addition, the PCB protective cover A covers the PCB, so that the large-area damage of the PCB E can be prevented when the battery liquid is sprayed, and the protective capability is improved.

In an embodiment, the PCB protective cover a further includes a shielding cover 4, the shielding cover 4 is fixedly connected to the cover top wall 1 or the cover side wall 2, the shielding cover 4 covers the vent hole 3, and the side wall of the shielding cover 4 is provided with a flow hole 4 a. So set up, the heat that PCB board E produced can be in proper order through bleeder vent 3 and circulation hole 4a discharge PCB board protective cover A, realizes the heat dissipation. And, when the battery liquid erupts, the battery liquid directly falls to on the shield cover 4, and the effect of blockking of shield cover 4 can prevent that the battery liquid from falling to PCB board E through bleeder vent 3, has further improved protective capacities.

In the above embodiment, the projection of the shielding cover 4 on the cover top wall 1 or the cover side wall 2 covers more than 80% of the area of the vent hole 3, so that the shielding cover 4 can prevent more battery liquid from entering the PCB protective cover a. Of course, the size and position of the shielding cover 4 may be adjusted adaptively according to actual situations, and are not limited herein.

The shield cover 4 may be located inside or outside the cap top wall 1 or the cap side wall 2, which is not limited herein.

In order to conduct the sprayed battery liquid, the PCB protective cover A is obliquely arranged relative to the horizontal plane, and the first side of the PCB protective cover A is higher than the second side. During specific assembly, PCB board protective cover A's first side is closer to the battery cell C setting than the second side, so falls the battery liquid on PCB board protective cover A and can follow 1 of lid roof wall and flow to the direction of keeping away from battery cell C, the derivation of the battery liquid of being convenient for more.

Optionally, the inclination angle of the PCB protective cover a is greater than or equal to 10 °, specifically, the inclination angle of the PCB protective cover a refers to an included angle between the cover top wall 1 and a horizontal plane. Preferably, the inclination angle of the PCB shield cover a is 20 ° or more, which is not limited herein.

Further, the shielding cover 4 located outside the cover top wall 1 is a first shielding cover, i.e. the first shielding cover is disposed outside the cover top wall 1. The lateral wall that first shield cover deviates from this PCB board protective cover A's first side has been seted up opening 4a, so set up, opening 4a just is located the lid roof 1 outside towards oblique below, can prevent that battery liquid from getting into PCB board protective cover A through opening 4 a.

Alternatively, the shield 4 located inside the dome wall 1 is a second shield, i.e. the second shield is arranged inside the dome wall 1. The lateral wall that first shield cover is close to this PCB board protective cover A's first side has been seted up opening 4a, so set up, opening 4a just is located lid roof 1 inboard towards oblique top, can prevent that battery liquid from getting into PCB board protective cover A through opening 4 a.

In another embodiment, the shield 4 located outside the cover side wall 2 is a third shield, i.e. the third shield is arranged outside the cover side wall 2. The third shield cover deviates from the lateral wall of the cover top wall 1 and is provided with a circulation hole 4a, so that the circulation hole 4a faces downwards and is located on the outer side of the cover lateral wall 2, and the battery liquid can be prevented from entering the PCB protective cover A through the circulation hole 4 a.

Alternatively, the shield 4 located inside the lid side wall 2 is a fourth shield, i.e. the fourth shield is arranged inside the lid side wall 2. The fourth shield cover is close to the lateral wall of lid roof 1 and has seted up opening 4a, so sets up, and opening 4a just is located lid lateral wall 2 inboards towards the top, can prevent that battery liquid from getting into PCB board protective cover A through opening 4 a.

Of course, the PCB shield cover a may also be horizontally disposed, and is not limited herein. The position of the shield cover 4 inside or outside the lid top wall 1 or the lid side wall 2 and the opening position of the flow hole 4a may be set by itself according to actual circumstances, and is not limited herein.

The lid top wall 1, the lid side wall 2 and the shield cover 4 may be of an integral structure for ease of manufacture. Therefore, the PCB protective cover A can be integrally formed by injection molding. Of course, the lid top wall 1, the lid side wall 2 and the shielding case 4 may be separately processed and then fixedly connected, which is not limited herein.

In another embodiment, the PCB shield cover a is fixedly connected to the PCB E or the support member B by screws. So as to support the PCB E or the support part B to the PCB protective cover A. In order to realize that the first side of the PCB shield cover a is disposed higher than the second side, the top surface of the supporting member B may be an inclined surface, and specifically, a portion of the supporting member B for supporting the first side of the PCB shield cover a is higher than a portion for supporting the first side of the PCB shield cover a.

Based on the PCB protective cover a provided in the above embodiment, the utility model further provides a battery management assembly, which includes a PCB E and any one of the PCB protective covers a provided in the above embodiments. Since the battery management assembly employs the PCB shield cover a in the above embodiment, please refer to the above embodiment for the beneficial effects of the battery management assembly.

Specifically, the battery management component may be a battery management system or a battery management unit, and may be set according to actual conditions.

The utility model also provides a battery energy storage system which comprises a battery unit C and the PCB protective cover A in any one of the embodiments. Because the battery energy storage system adopts the PCB protective cover A in the embodiment, the battery energy storage system also has the same beneficial effects, and the description is omitted.

Further, the PCB protective cover A is obliquely arranged relative to the horizontal plane, and the first side of the PCB protective cover A is higher than the second side. And, PCB board protective cover A's first side is closer to the battery unit C setting than the second side, so fall to the battery liquid on PCB board protective cover A and can follow 1 orientation flow of keeping away from battery unit C of lid roof, the derivation of the battery liquid of being convenient for more.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims

1. The utility model provides a PCB board protective cover, its characterized in that, including cover roof (1) and with cover roof (1) fixed connection's lid lateral wall (2), cover roof (1) and lid lateral wall (2) and enclose into the holding tank jointly, this PCB board protective cover locates the PCB board so that the PCB board is located in the holding tank, cover roof (1) and/or bleeder vent (3) have been seted up in lid lateral wall (2).

2. The PCB protecting cover of claim 1, further comprising a shielding cover (4) fixedly connected with the cover top wall (1) or the cover side wall (2), wherein the shielding cover (4) covers the air holes (3), and the side wall of the shielding cover (4) is provided with flow holes (4 a).

3. The PCB shield cover according to claim 2, wherein the projection of the shield cover (4) on the lid top wall (1) or lid side wall (2) covers more than 80% of the area of the vent hole (3).

4. The PCB shield cover of claim 2, wherein the PCB shield cover is disposed obliquely with respect to a horizontal plane, and a first side of the PCB shield cover is disposed higher than a second side.

5. The PCB shield cover according to claim 2, wherein the shield (4) located outside the cover top wall (1) is a first shield, and the side wall of the first shield facing away from the first side of the PCB shield cover is provided with the flow hole (4 a); alternatively, the first and second electrodes may be,

the shielding cover (4) positioned on the inner side of the cover top wall (1) is a second shielding cover, and the side wall of the second shielding cover, which is close to the first side of the PCB protective cover, is provided with the circulation hole (4 a).

6. The PCB shield cover according to claim 2, wherein the shield (4) located outside the cover side wall (2) is a third shield, and the side wall of the third shield facing away from the cover top wall (1) is provided with the through hole (4 a); alternatively, the first and second electrodes may be,

the shielding cover (4) positioned on the inner side of the cover side wall (2) is a fourth shielding cover, and the side wall of the fourth shielding cover close to the cover top wall (1) is provided with the circulation hole (4 a).

7. A PCB shield cover according to claim 2, wherein the cover top wall (1), cover side walls (2) and shield (4) are of unitary construction.

8. The PCB shield cover of claim 1, wherein the PCB shield cover is fixedly connected to the PCB or the support member by screws.

9. A battery management assembly comprising a PCB board, further comprising the PCB board protective cover of any one of claims 1-8.

10. A battery energy storage system comprising a battery cell, further comprising the battery management assembly of claim 9.

11. The battery energy storage system of claim 10, wherein the PCB shield cover is disposed obliquely with respect to a horizontal plane, and a first side of the PCB shield cover is disposed higher than a second side;