CN217426967U

CN217426967U - BMS casing and battery package

Info

Publication number: CN217426967U
Application number: CN202220741616.4U
Authority: CN
Inventors: 宋海阳; 陈荣康
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-09-13
Anticipated expiration: 2032-03-30

Abstract

The application relates to a battery package technical field especially relates to a BMS casing and battery package. The BMS casing includes housing body, and housing body is integrated into one piece's cavity casing, and housing body's inside forms the well plenum chamber that is used for placing the PCB board. The hollow cavity penetrates through the shell body along the first direction, so that an opening is formed in the shell body, and the end part of the PCB in the first direction can be inserted into the shell body through the opening. Therefore, when assembling the PCB and the shell body, one end of the PCB on the first direction is opposite to the opening, then the PCB is inserted into the shell body along the first direction, so that the PCB is packaged and protected through the shell body, and the shell body is an integrally formed hollow shell, so that the shell body has higher strength, is not easy to deform and damage, and further can be effectively protected, and the PCB is prevented from being damaged.

Description

BMS casing and battery package

Technical Field

The application relates to a battery package technical field especially relates to a BMS casing and battery package.

Background

The BMS (Battery Management System) is a core component of the Battery pack, generally comprises a housing and a PCB disposed in the housing, and protects the PCB through the housing to prevent the Battery cells in the Battery pack from extruding and damaging the PCB due to expansion of the Battery cells during charging; but current BMS casing is not only complicated in structure, and intensity is relatively poor, can't protect the PCB board effectively.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a BMS casing and battery package to solve the complicated and poor technical problem of intensity of BMS shell structure among the prior art to a certain extent.

The utility model provides a BMS shell, which comprises a shell body;

the housing body is an integrally formed hollow housing, and a hollow cavity inside the housing body is used for accommodating a PCB (printed circuit board) of the BMS;

the hollow cavity penetrates through the shell body along the first direction, an opening is formed in the shell body, and the PCB is inserted into the hollow cavity through the opening.

Furthermore, a limiting part is arranged inside the shell body;

the PCB is installed in the limiting part in a limiting mode, and the two side plate surfaces of the PCB can be opposite to the inner side walls of the two sides of the shell body in the second direction and are spaced by a preset distance; the second direction is perpendicular to the first direction.

Furthermore, a limiting groove is formed in the inner side wall of at least one side of the shell body in the third direction, and the limiting part comprises the limiting groove;

the limiting groove penetrates through the shell body along the first direction to form a socket which is communicated with the opening part and used for inserting the PCB into the limiting groove;

the third direction is perpendicular to the first direction and the second direction.

Furthermore, the two sides of the side plate surface of the PCB in the first direction are respectively provided with a first communication connector;

first openings are formed in the positions, opposite to the first communication connectors, of the two ends of the shell body in the first direction, and the first communication connectors are exposed to the outer side of the shell body through the first openings.

Further, the BMS housing further includes a protective cover;

the protective cover set up in first opening department and to exposing in the casing main part outside first communication connector covers and establishes, just the protective cover with the connection can be dismantled to the casing main part.

Furthermore, the protective cover is provided with inserting parts on two sides in the third direction, a slot matched with the inserting part is formed in the position, opposite to the inserting part, of the shell body, and the protective cover is inserted into the shell body through the inserting part.

Further, the protective cover is made of insulating materials.

Furthermore, the two sides of the side plate surface of the PCB in the third direction are respectively provided with a second communication connector;

and second openings are formed in the positions, opposite to the second communication connectors, of the two ends of the shell body in the third direction, and the second communication connectors are exposed to the outer side of the shell body through the second openings.

Further, the shell body is made of aluminum alloy.

The utility model also provides a battery package, including above-mentioned arbitrary one BMS casing.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a BMS casing includes housing body, and housing body is integrated into one piece's cavity casing, and housing body's inside cavity forms the well plenum chamber that has predetermined space in housing body's inside promptly, and this well plenum chamber and BMS's PCB board looks adaptation, makes the PCB board can be packed into in the inside well plenum chamber of housing body to encapsulate, protect the PCB board through housing body.

The hollow chamber extends along the first direction and penetrates through the shell body, so that an opening part is formed on the shell body, and the hollow chamber in the shell body can be communicated with the outside of the shell body through the opening part; the PCB board includes the lateral part perpendicular with self face in the both sides of first direction, and the lateral part and the opening looks adaptation of the both sides of first direction of PCB board for the tip on the first direction of PCB board can be inserted into the casing main part through the opening. Consequently, when assembling PCB board and casing main part, can make the tip of the one end of the first direction of PCB board just right with the opening, then insert the PCB board in the casing main part along first direction, thereby accomplish PCB board and casing main part's assembly, in order to encapsulate the PCB board through casing main part, the protection, and because casing main part is integrated into one piece's cavity casing, make casing main part have higher intensity, difficult emergence is out of shape and is damaged, and then can protect the PCB board effectively, prevent that the PCB board from damaging.

The utility model also provides a battery package, include the BMS casing, therefore the battery package also has the beneficial effect of BMS casing.

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

Fig. 1 is a schematic structural view of a housing main body of a BMS housing according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional structural view of a housing body of a BMS housing according to an embodiment of the present invention;

fig. 3 is an enlarged view of an end portion of the housing body according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a protective cover of a BMS housing according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a housing body and a protective cover according to an embodiment of the present invention.

Reference numerals:

1-a shell body, 11-a first opening, 12-a second opening, 13-a limiting groove, 14-a slot, 2-a PCB, 3-a protective cover, 31-a plug-in part, a-a first direction, b-a second direction and c-a third direction.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.

The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The BMS housing and the battery pack according to some embodiments of the present application are described below with reference to fig. 1 to 5.

The present application provides a BMS housing, as shown in fig. 1 and 2, the BMS housing includes a housing body 1, the housing body 1 is an integrally formed hollow housing, that is, the inside of the housing body 1 is hollow, a hollow chamber having a predetermined space is formed inside the housing body 1, and the hollow chamber is adapted to a PCB board 2 of the BMS, so that the PCB board 2 can be loaded into the hollow chamber inside the housing body 1, so as to encapsulate and protect the PCB board 2 through the housing body 1.

The hollow chamber extends along a first direction a and penetrates through the housing body 1, so that an opening part is formed on the housing body 1, and the hollow chamber inside the housing body 1 can be communicated with the outside of the housing body 1 through the opening part; the PCB 2 includes side portions perpendicular to the surface of the PCB at both sides of the first direction a, and the side portions of the PCB 2 at both sides of the first direction a are fitted with the opening, so that the end portion of the PCB 2 in the first direction a can be inserted into the housing body 1 through the opening portion. Therefore, when assembling the PCB 2 and the housing body 1, the end of the first direction a of the PCB 2 is opposite to the opening, and then the PCB 2 is inserted into the housing body 1 along the first direction a, thereby completing the assembly of the PCB 2 and the housing body 1, so as to encapsulate the PCB 2 through the housing body 1, and protect the PCB, and because the housing body 1 is an integrally formed hollow housing, the housing body 1 has higher strength, and is not easy to deform and damage, and further can effectively protect the PCB 2, and prevent the PCB 2 from being damaged.

In an embodiment of the present application, preferably, as shown in fig. 2, the inside of the housing main body 1 is provided with a limiting portion, the limiting portion is adapted to the PCB 2, and when the PCB 2 is inserted into a predetermined position in the housing main body 1, the PCB 2 can be limited and mounted in the limiting portion, so as to limit and restrict the placement position of the PCB 2 in the housing main body 1 through the limiting portion, so that two side plate surfaces of the PCB 2 can be opposite to and spaced from the inner side walls of two sides of the housing main body 1 in the second direction b by a predetermined distance.

When the BMS is used for a battery pack with blade-shaped battery cells, the BMS is arranged between the battery cells and the cross beam of the battery pack, one side of the BMS shell in the second direction b is attached to the battery cells, and the other side of the BMS shell is attached to the cross beam; carry out spacing restraint to PCB board 2 through set up spacing portion in casing main part 1, can make and form the buffering space between the lateral wall of the second direction b both sides of casing main part 1 and the face of PCB board 2 to avoid casing main part 1 to cause the extrusion to PCB board 2 when receiving the oppression because of electric core inflation.

In one embodiment of the present application, preferably, as shown in fig. 2 and 3, the limiting portion includes a limiting groove 13 opened on an inner side wall of one side or both sides of the housing body 1 in the third direction c, a notch of the limiting groove 13 faces the inside of the housing body 1 and is communicated with the hollow chamber inside the housing body 1, a length direction of the limiting groove 13 is along the first direction a, and the limiting groove 13 penetrates through the housing body 1 in a direction, so that a socket is formed on the housing body 1, through which the limiting groove 13 is connected with an outside of the housing body 1, and the socket is communicated with the opening portion.

The limiting groove 13 has a width along the second direction b, and the width of the limiting groove 13 is matched with the thickness of the PCB 2, when the PCB 2 is inserted into the hollow chamber in the housing body 1, one end of the PCB 2 in the third direction c can be inserted into the limiting groove 13 through the socket, and then inserted into the housing body 1 along the length extending direction of the limiting groove 13, i.e., the first direction a; so that the end of the PCB 2 opposite to the limiting groove 13 is inserted into the limiting groove 13, and the PCB 2 is limited at a predetermined position in the housing body 1 through the limiting groove 13.

Preferably, the casing main body 1 has the limiting grooves 13 formed in the side walls of the two sides of the third direction c, the limiting grooves 13 on the two sides are arranged oppositely, and the two ends of the third direction c of the PCB 2 can be respectively inserted into the corresponding limiting grooves 13, so that the PCB 2 is more stably limited at the preset position in the casing main body 1, and the two side plate surfaces of the PCB 2 are ensured to be spaced from the side walls of the corresponding casing main body 1 by a preset distance.

In one embodiment of the present application, the PCB 2 is preferably provided with first communication connectors (not shown) on two sides of the first direction a of one side plate surface, and the first communication connectors are used for electrically connecting with output electrodes on two sides of the first direction a of the battery cells in the battery pack. As shown in fig. 1 and fig. 3, first openings 11 are formed at two ends of the casing main body 1 in the first direction a, and the first openings 11 at two ends of the casing main body 1 are respectively opposite to the first communication connectors at two sides of the PCB board 2, so that the first communication connectors at two sides can be respectively exposed to the outer side of the casing main body 1 through the first openings 11 opposite to the first communication connectors, and thus, the first communication connectors and the output electrode of the battery cell are conveniently wired to electrically connect the PCB board 2 and the battery cell.

In one embodiment of the present application, preferably, as shown in fig. 5, the BMS housing further includes a protective cover 3, the protective cover 3 is disposed at the first slits 11 at both sides of the housing main body 1, respectively, to cover the first communication connecting device exposed at the first slits 11 through the protective cover 3, and the protective cover 3 is detachably connected to the housing main body 1. When the first communication connector is connected with the output electrode of the battery cell, the protective cover 3 at the first notch 11 can be detached to expose the first communication connector, so that the connection can be completed conveniently. After the wiring of first communication connector and electric core was accomplished, install protective cover 3 in the 11 departments of the first opening that correspond to cover first communication connector through protective cover 3, prevent that personnel's mistake from touching first communication connector and danger takes place.

In an embodiment of the present application, preferably, as shown in fig. 3 and 4, the protective cover 3 is respectively formed with insertion portions 31 on side portions of two sides of the third direction c, and two sides of the third direction c of the housing main body 1 are respectively provided with insertion slots 14 adapted to the insertion portions 31, so that the insertion portions 31 can be inserted into the insertion slots 14, and thus the protective cover 3 is detachably mounted on the housing main body 1, so as to cover the first communication connector on the PCB board 2 through the protective cover 3, and prevent a person from touching the first communication connector by mistake to cause a danger.

In one embodiment of the present application, the protective cover 3 is preferably made of an insulating material, for example, the protective cover 3 is made of PC + PA66, so as to avoid the danger of electric shock caused by touching the protective cover 3.

In an embodiment of the present application, preferably, the PCB 2 is further provided with second communication connectors (not shown) on two sides of a side plate surface of the PCB in the third direction c, and the second communication connectors and the first communication connectors are located on the same side plate surface of the PCB 2.

As shown in fig. 1, a second opening 12 is opened at a position of the housing body 1 opposite to the second communication connectors at two sides, so that the second communication connectors can be exposed to the outside of the housing body 1 through the second opening 12, so as to connect the second communication connectors with external electrical components for electrical connection.

Preferably, a detachably connected protecting cover (not shown) may also be disposed at the second gap 12 of the housing body 1, and when the second access connector on one side is in an unsuitable state, the protecting cover may be mounted at the gap opposite to the second access connector for sealing and protecting.

In an embodiment of this application, preferably, the material of casing main part 1 is the harder material of intensity, for example casing main part 1 material is the aluminum alloy material to receive the oppression of external force such as electric core inflation and oppress it, difficult emergence is out of shape, thereby plays effectual protection to being located its inside PCB board 2, prevents that PCB board 2 from damaging.

The present application also provides a battery pack including the BMS housing of any one of the above embodiments.

In this embodiment, the battery pack includes the BMS housing, and thus the battery pack has all the advantageous effects of the BMS housing, which will not be described in detail herein.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the invention in its corresponding aspects.

Claims

1. A BMS housing, characterized in that the BMS housing comprises a housing body;

the hollow cavity penetrates through the shell body along a first direction and forms an opening on the shell body, and the PCB is inserted into the hollow cavity through the opening.

2. The BMS housing according to claim 1, characterized in that a stopper is provided inside the housing body;

3. The BMS housing according to claim 2, wherein a stopper groove is opened on an inner side wall of at least one side of the housing body in the third direction, the stopper part including the stopper groove;

4. The BMS housing according to claim 3, wherein the PCB board is provided at both sides of a side plate surface thereof in the first direction with first communication connectors, respectively;

5. The BMS housing according to claim 4, further comprising a protective cover;

6. The BMS housing according to claim 5, wherein the protective cover is provided with insertion parts at both sides in the third direction, the housing body is provided with insertion grooves adapted to the insertion parts at positions opposite to the insertion parts, and the protective cover is inserted into the housing body through the insertion parts.

7. The BMS housing according to claim 5, wherein the protective cover is an insulating protective cover.

8. The BMS housing according to claim 3, wherein the PCB board is provided at both sides of a side plate surface thereof in the third direction with second communication connectors, respectively;

9. The BMS housing according to claim 1, characterized in that the housing body is of an aluminum alloy.

10. A battery pack comprising the BMS housing of any one of claims 1 to 9.