CN219876649U

CN219876649U - BMS battery thermal management heat abstractor

Info

Publication number: CN219876649U
Application number: CN202320673812.7U
Authority: CN
Inventors: 徐伟
Original assignee: Jiaxing Hengyi New Energy Co ltd
Current assignee: Jiaxing Hengyi New Energy Co ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-10-20
Anticipated expiration: 2033-03-30

Abstract

The utility model discloses a BMS battery thermal management heat dissipation device, which comprises a BMS mounting seat and a heat dissipation module; the BMS installation seat is integrally rectangular plate-shaped, an opening at the bottom of the BMS installation seat is arranged, and the heat dissipation module is movably inserted into the top of the BMS installation seat; the heat radiation module comprises a rectangular plate-shaped flow guide shell, and a fan mounting groove for mounting the axial flow fan is formed in the center of the bottom of the flow guide shell; at least two inserting grooves are formed in the top of the BMS mounting seat, inserting parts are arranged at the bottom of the heat dissipation module, and the inserting grooves and the inserting parts are matched; the beneficial effects of the utility model are as follows: only a universal BMS mounting seat is required to be produced, and the plugging groove which is not required to be provided with the heat radiation module is sealed by a sealing cover when the BMS mounting seat is used; when using, peg graft heat dissipation module as required, heat dissipation module is pegged graft at BMS mount pad top through the cooperation of grafting groove and grafting portion, and axial fan starts the heat discharge that produces the BMS work in the BMS mount pad.

Description

BMS battery thermal management heat abstractor

Technical Field

The utility model relates to the field of BMS battery management systems, in particular to a BMS battery heat management and dissipation device.

Background

The BMS battery system is commonly called as a battery nurse or a battery manager, and is mainly used for intelligently managing and maintaining each battery unit, preventing the battery from being overcharged and overdischarged, prolonging the service life of the battery, and monitoring the state of the battery. The BMS battery management system unit comprises a BMS battery management system, a control module, a display module, a wireless communication module, electrical equipment, a battery pack for supplying power to the electrical equipment and an acquisition module for acquiring battery information of the battery pack; the BMS battery management system device body works for a long time to cause internal heat collection, and when the heat dissipation effect is poor, the condition that the service life is shortened can be caused.

For example, patent publication number CN218300112U discloses a BMS mounting structure and a battery pack, and the BMS mounting structure of the present utility model includes a mounting seat provided at the top of a BDU housing, a mounting groove is provided on the mounting seat, and a fixing part for fixing the BMS is provided in the mounting groove. And the connecting part is arranged on the mounting seat, and the mounting seat is connected to the BDU shell through the connecting part.

According to the BMS mounting structure, the mounting seat for mounting the BMS is arranged at the top of the BDU shell through the connecting part, so that not only can the compactness of structural arrangement between the mounting seat and the BDU shell be improved, but also the utilization rate of the space in the battery pack can be improved; in addition, the distance between the BMS and the BDU shell can be reduced, communication wire harnesses between the BMS and the BDU shell can be shortened, and wire harness arrangement can be facilitated; however, the BMS of the above patent lacks an active heat dissipation mechanism itself, which easily results in a shortened service life of the BMS if the battery management system is operated for a long time.

Therefore, there is a need for an improvement in such a structure to overcome the above-mentioned drawbacks.

Disclosure of Invention

The utility model aims to provide a BMS battery thermal management heat dissipation device for solving the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a BMS battery thermal management heat dissipation device comprises a BMS mounting seat and a heat dissipation module; the BMS installation seat is integrally rectangular plate-shaped, an opening at the bottom of the BMS installation seat is arranged, and the heat dissipation module is movably inserted into the top of the BMS installation seat; the heat radiation module comprises a rectangular plate-shaped flow guide shell, and a fan mounting groove for mounting the axial flow fan is formed in the center of the bottom of the flow guide shell; at least two grafting grooves have been seted up at the top of BMS mount pad, and radiating module's bottom is equipped with grafting portion, grafting groove and grafting portion cooperation setting, and grafting groove is the rectangle logical groove, and grafting portion is whole to be the tubulose of rectangle, and grafting portion and first water conservancy diversion chamber intercommunication setting, has seted up jaggedly about on the grafting portion, and this breach department is equipped with the shell fragment, and the outside of shell fragment is equipped with the bellying, and the side of grafting groove is equipped with the recess with the bellying adaptation.

Further, through holes are formed in four corners of the BMS mounting seat for mounting the BMS mounting seat.

Further, the whole rectangle that is of fan mounting groove, the four corners department of fan mounting groove has been seted up and has been used for installing axial fan's installation screw hole, and installation screw hole cooperation is provided with the screw, and axial fan passes through the screw to be installed in the fan mounting groove.

Further, a first diversion cavity which is round is arranged above the fan installation groove, a plurality of second diversion cavities with rectangular sections are arranged in the first diversion cavity in a backward communication mode, and the second diversion cavities penetrate through the side face of the diversion shell.

Further, the heat dissipation module is also provided with a sealing cover, the sealing cover is in a rectangular plate which covers the upper part of the plugging groove, the plugging part is also arranged below the sealing cover, the plugging part is identical to the plugging part on the heat dissipation module in structure, the plugging groove and the plugging part are matched, the plugging groove is a rectangular through groove, the plugging part is in a rectangular tubular shape as a whole, a notch is formed in the left side and the right side of the plugging part, an elastic sheet is arranged at the notch, a protruding part is arranged on the outer side of the elastic sheet, and a groove matched with the protruding part is formed in the side face of the plugging groove.

Compared with the prior art, the utility model has the beneficial effects that: the air outlet of the heat radiation module is not positioned right above the axial flow fan, so that dust cannot fall on the BMS in the BMS mounting seat through the air outlet when the BMS stops working;

only a universal BMS mounting seat is required to be produced, and the plugging groove which is not required to be provided with the heat radiation module is sealed by a sealing cover when the BMS mounting seat is used; when using, peg graft heat dissipation module as required, heat dissipation module is pegged graft at BMS mount pad top through the cooperation of spliced groove and grafting portion, and axial fan starts the heat that produces the BMS work in the BMS mount pad, discharges from the side of water conservancy diversion casing through first water conservancy diversion chamber and second water conservancy diversion chamber.

Drawings

Fig. 1 is a schematic structural view of a thermal management heat sink for a BMS battery.

Fig. 2 is a front view of a thermal management heat sink of a BMS battery.

Fig. 3 is a top view of a thermal management heat sink for a BMS battery.

Fig. 4 is a side view of a thermal management heat sink of a BMS battery.

Fig. 5 is an exploded view of a thermal management heat sink of a BMS battery.

Fig. 6 is a schematic view illustrating a bottom view of a flow guiding housing in a thermal management heat sink for a BMS battery.

Fig. 7 is a rear view of a flow guiding housing in a thermal management heat sink for a BMS battery.

Fig. 8 is a sectional view of a flow guiding cavity in a flow guiding housing of a thermal management heat sink of a BMS battery.

Fig. 9 is a schematic view illustrating a structure of a bottom view of a cover in a thermal management heat sink of a BMS battery.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. The components of the embodiments of the present utility model 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 utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.

Referring to fig. 1 to 9, a thermal management heat dissipation device for a BMS battery includes a BMS mounting seat 1;

also, in order to adapt to the conventional rectangular structure of the BMS, the BMS mounting seat 1 is in a rectangular plate shape as a whole, the bottom opening of the BMS mounting seat 1 is arranged, through holes 101 are formed at four corners of the BMS mounting seat 1 for mounting the BMS mounting seat 1,

the innovation point of the scheme is that a forced air cooling radiating module 2 is arranged, and the radiating module 2 is movably inserted into the top of the BMS mounting seat 1;

for the cooperation of the rectangular plate-shaped BMS mounting seat 1, and for the compactness of the structural arrangement between the two;

referring to fig. 1-8, the heat dissipation module 2 is also in a flattened shape, the heat dissipation module 2 includes a rectangular plate-shaped diversion shell 201, a fan installation groove 202 for installing the axial flow fan 3 is formed in the bottom center of the diversion shell 201, a first diversion cavity 203 which is circular in shape is formed above the fan installation groove 202, the first diversion cavity 203 is communicated with a plurality of second diversion cavities 204 which are rectangular in cross section, and the second diversion cavities 204 penetrate through to the side surface of the diversion shell 201;

in the present embodiment, the fan is used to attract the hot air in the BMS mounting seat 1 into the first diversion cavity 203 and then discharge the hot air from the side of the diversion shell 201 through the second diversion cavity 204, and this arrangement has the advantage that the air outlet of the heat dissipation module 2 (the opening of the second diversion cavity 204) is not located right above the axial fan 3, so that dust will not fall on the BMS in the BMS mounting seat 1 through the air outlet when the BMS stops working;

in order to install the axial flow fan 3 in the fan installation groove 202, since the small axial flow fan for heat dissipation is mostly rectangular, the fan installation groove 202 is rectangular overall, four corners of the fan installation groove 202 are provided with installation threaded holes 205 for installing the axial flow fan 3, the installation threaded holes 205 are provided with screws in a matching way, and the axial flow fan 3 is installed in the fan installation groove 202 through the screws (not shown in the figure);

in order to facilitate the heat dissipation module 2 to be inserted into the top of the BMS installation seat 1, at least two inserting grooves 4 are formed in the top of the BMS installation seat 1, an inserting part 5 is arranged at the bottom of the heat dissipation module 2, the inserting grooves 4 and the inserting part 5 are matched, the inserting groove 4 is a rectangular through groove, the inserting part 5 is in a rectangular tubular shape as a whole, the inserting part 5 is communicated with the first diversion cavity 203, a notch 501 is formed in the left side and the right side of the inserting part 5, an elastic piece 502 is arranged at the notch 501, a protruding part 503 is arranged at the outer side of the elastic piece 502, and a groove 401 matched with the protruding part 503 is formed in the side surface of the inserting groove 4;

when the BMS installation seat is used, the heat dissipation module 2 is spliced at the top of the BMS installation seat 1 through the matching of the splicing groove 4 and the splicing part 5, when the heat dissipation module is inserted, the splicing part 5 is firstly inserted into the splicing groove 4, meanwhile, the protruding part 503 on the elastic sheet 502 is forced to shrink inwards, the splicing part 5 is continuously inserted into the splicing groove 4, and when the protruding part 503 moves to the groove 401, the elastic sheet 502 rebounds; at this time, the heat dissipation module 2 completes the fixing of the position in the vertical direction by the protrusion 503 and the groove 401.

The axial flow fan 3 starts to discharge heat generated by the operation of the BMS in the BMS mounting seat 1 from the side of the guide housing 201 through the first guide cavity 203 and the second guide cavity 204.

In order to make the solution more universal and convenient for production, if a certain type of MCU does not need two or more than two heat dissipation modules 3, at this time, it is necessary to produce BMS mounting seats 1 of various types with different numbers of inserting grooves 4, in order to save cost, only one general BMS mounting seat 1 needs to be produced, and in combination with fig. 9, in some embodiments of the solution, a cover 6 is further included, the cover 6 is a rectangular plate covering the upper part of the inserting groove 4, and an inserting part 5 is also provided below the cover 6, the inserting part 5 has the same structure as the inserting part on the heat dissipation module 2, the inserting groove 4 and the inserting part 5 are cooperatively arranged, the inserting groove 4 is a rectangular through groove, the inserting part 5 is integrally rectangular tubular, a notch 501 is provided on the inserting part 5, a spring 502 is provided at the notch 501, a protruding part 503 is provided on the outer side of the spring 502, and a groove 401 adapted to the protruding part 503 is provided on the side of the inserting groove 4;

in this embodiment, the plugging slot 4, which is not required to be provided with a heat dissipation module, is sealed by the sealing cover 6 during use.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "inner", "outer", "left", "right", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in place when the inventive product is used, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, terms such as "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Claims

1. A BMS battery thermal management heat dissipation device comprises a BMS mounting seat and a heat dissipation module; the BMS installation seat is integrally rectangular plate-shaped, an opening is arranged at the bottom of the BMS installation seat, and the heat dissipation module is movably inserted into the top of the BMS installation seat; the heat radiation module comprises a rectangular plate-shaped flow guide shell, and a fan mounting groove for mounting the axial flow fan is formed in the center of the bottom of the flow guide shell; at least two grafting grooves have been seted up at the top of BMS mount pad, and radiating module's bottom is equipped with grafting portion, grafting groove and grafting portion cooperation setting, and grafting groove is the rectangle logical groove, and grafting portion is whole to be the tubulose of rectangle, and grafting portion and first water conservancy diversion chamber intercommunication setting, has seted up jaggedly about on the grafting portion, and this breach department is equipped with the shell fragment, and the outside of shell fragment is equipped with the bellying, and the side of grafting groove is equipped with the recess with the bellying adaptation.

2. The heat management and dissipation device for a BMS battery according to claim 1, wherein through holes are formed at four corners of the BMS mounting seat for mounting the BMS mounting seat.

3. The heat management and dissipation device for the BMS battery according to claim 1, wherein the fan mounting groove is rectangular overall, mounting threaded holes for mounting the axial flow fan are formed in four corners of the fan mounting groove, screws are arranged in the mounting threaded holes in a matched mode, and the axial flow fan is mounted in the fan mounting groove through the screws.

4. The heat management and heat dissipation device for the BMS battery according to claim 1, wherein a first diversion cavity which is round in shape is arranged above the fan installation groove, the first diversion cavity is communicated with a plurality of second diversion cavities which are rectangular in cross section backwards, and the second diversion cavities penetrate through to the side face of the diversion shell.

5. The heat management and dissipation device for the BMS battery according to any one of claims 1 to 4, further comprising a cover, wherein the cover is a rectangular plate covering the upper part of the plugging slot, the plugging part is also arranged below the cover, the plugging part has the same structure as the plugging part on the heat dissipation module, the plugging slot and the plugging part are matched, the plugging slot is a rectangular through slot, the plugging part is integrally rectangular and tubular, a notch is formed in the plugging part in the left and right directions, an elastic sheet is arranged at the notch, a protruding part is arranged at the outer side of the elastic sheet, and a groove matched with the protruding part is formed in the side surface of the plugging slot.