CN207705262U - A kind of battery modules radiator - Google Patents

Abstract

The utility model relates to the technical field of battery heat dissipation, in particular to a heat dissipation device for a battery module, which comprises: a battery frame and a heat dissipation part detachably connected with the battery frame. There are through holes arranged to match the openings. The heat sink can go deep into the interior of the battery module and closely adhere to the surface of the battery cell, improving heat dissipation efficiency and supporting the battery cell to prevent excessive expansion of the battery cell during charging and discharging. The device uses contact heat sinks and air ducts to form a composite heat dissipation combined with convective heat exchange to realize heat transfer between the inside of the battery module and the external environment, effectively improving heat dissipation efficiency and reducing the temperature difference between battery cells , so that the temperature distribution inside the battery module is uniform.

Description

A cooling device for a battery module

technical field

The utility model relates to the technical field of battery cooling, in particular to a cooling device for a battery module.

Background technique

With the rapid development of the new energy industry, the development of energy storage technology and its industry has increasingly become the focus of today's society, and the battery module is the most critical part of the energy storage system. Battery modules with high energy, good stability, and small footprint are the goals that energy storage vehicles and energy storage power stations have been pursuing. Usually, in order to reduce the volume of the battery module, a large number of batteries are closely arranged inside the battery module, and part of the electric energy of the battery will be converted into heat energy during the charging and discharging process. With the accumulation of battery charging and discharging time and the influence of the space area, the battery A lot of heat is generated inside the module. If the heat dissipation performance of the battery module is not good, the heat will gradually accumulate over time, making the internal temperature of the battery module too high. If the battery module operates in a high temperature environment for a long time, it will aggravate the inconsistency of the internal resistance and capacity of the single cells inside the battery module, affect the battery life and performance, and even cause safety accidents such as battery explosion and fire.

Existing battery modules carry out forced air cooling and heat dissipation by installing fans or air conditioners outside the battery box. The disadvantage of this heat dissipation method is that the internal space of the battery is small, and the use of fans or air conditioners to dissipate heat from the battery module as a whole has low efficiency and cannot effectively take away the heat inside the battery module, and it is easy to cause uneven local temperature distribution inside the module. Uniform, the temperature near the fan or air conditioner is low, but the temperature inside the battery module is too high. This temperature non-uniformity can affect battery performance and lifespan.

In view of this, to overcome the above defects in the prior art and to provide a new heat dissipation device for battery modules has become a technical problem to be solved urgently in this field.

Contents of the invention

The purpose of the utility model is to provide a heat dissipation device for a battery module aiming at the above-mentioned defects of the prior art.

The purpose of this utility model can be realized by following technical measures:

A heat dissipation device for a battery module, the device comprising:

At least one battery rack, the battery rack includes two first side plates arranged parallel to each other at intervals and two second side plates perpendicular to the first side plates arranged parallel to each other at intervals, the first side plates and The second side plate encloses a cavity for installing battery cells; the cross-section of the first side plate is an inverted T shape, and the first side plate includes a horizontal part and a vertical part extending vertically from the horizontal part. part, the battery cells are fixed on both sides of the vertical part of the first side plate, and openings are opened on the second side plate;

A heat sink with a through hole matched with the opening, the heat sink is inserted into the opening and is detachably connected to the battery holder.

Preferably, the second side plate is provided with a fixing piece for fixing the heat sink, and the fixing piece includes a fixing block and a locking block detachably connected with the fixing block.

Preferably, the fixing block is formed extending from the surface of the second side plate along the interior of the cavity, the fixing block is provided with a bayonet, and the locking block is provided with a button that matches the bayonet raised.

Preferably, the battery rack is further provided with a mounting portion for connecting adjacent battery racks.

Preferably, the installation part is provided at the end of the first side plate, and the installation part includes a first installation part and a second installation part arranged alternately.

Preferably, the first mounting part is provided with a positioning pin, and the second mounting part is provided with a positioning hole matching with the positioning pin.

Preferably, both ends of the installation part are respectively provided with a first connection part and a second connection part.

Preferably, the first connecting portion is formed by extending from one end of the mounting portion along the extending direction of the first side plate, and then bent away from the mounting portion; the second connecting portion is formed from the The other end of the installation part is formed extending along the extending direction of the first side plate.

Preferably, the first connecting portion and the second connecting portion are respectively provided with opposite first locking blocks and second locking blocks.

Preferably, the tabs of the battery module are suspended between adjacent battery frames.

The device of the utility model comprises: a battery rack and a heat sink detachably connected with the battery rack, the battery rack has an opening for inserting the heat sink, and the heat sink has a through hole matched with the opening. The heat sink can go deep into the interior of the battery module and fit closely with the surface of the battery cell, increasing the contact area between the heat sink and the battery cell, so that the heat generated inside the battery cell can be effectively transferred to the heat sink, improving heat dissipation Efficiency, balance the temperature difference between the battery cells, make the heat dissipation more uniform, and at the same time support the battery cells to prevent the excessive expansion of the battery cells during charging and discharging. In addition, the through holes on the heat sink and the battery frame The openings on the top correspond to form air ducts, which bring the heat on the heat sink to the external environment to realize convective heat exchange, so as to achieve the effect of rapid heat dissipation.

Description of drawings

Fig. 1 is a schematic exploded view of the structure of the device of the present invention.

Fig. 2 is a schematic structural view of the first side plate in the device of the present invention.

Fig. 3 is a schematic diagram of the three-dimensional structure of the device of the present invention.

Fig. 4 is a front view of the device of the present invention.

Fig. 5 is a three-dimensional structural schematic view of the heat sink in the device of the present invention.

Fig. 6 is a front view of the heat sink in the device of the present invention.

Fig. 7 is an exploded schematic diagram of the structure of the battery rack in the device of the present invention.

Fig. 8 is a three-dimensional structural schematic view of the battery rack in the device of the present invention.

Fig. 9 is a front view of the battery holder in the device of the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

In the following text, many aspects of the invention will be better understood with reference to the accompanying drawings. Components in the figures are not necessarily drawn to scale. Instead, the emphasis is on clearly illustrating the components of the invention. Furthermore, like reference numerals indicate corresponding parts throughout the several views of the drawings.

As used herein, the word "exemplary" or "illustrative" means serving as an example, instance, or illustration. Any implementation described herein as "exemplary" or "illustrative" is not necessarily to be construed as preferred or advantageous over other implementations. All of the embodiments described below are exemplary embodiments provided to enable those skilled in the art to make and use examples of the disclosure and are not intended to limit the scope of the disclosure, which is defined by Claims limited. In other embodiments, well-known features and methods are described in detail so as not to obscure the present invention. For the purposes of this description, the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal" and their derivatives will be oriented as shown in Figure 1 related to the utility model. Furthermore, there is no intention to be bound by any expressed or implied theory presented in the preceding technical field, background, brief summary or the following detailed description. It is also to be understood that the specific devices and processes shown in the drawings and described in the following description are simple exemplary embodiments of the inventive concepts defined in the appended claims. Therefore, specific dimensions and other physical characteristics related to the embodiments disclosed herein are not to be considered as limiting, unless the claims expressly state otherwise.

1 to 4 show a heat dissipation device for a battery module, which includes: at least one battery rack 10 and a heat dissipation element 20 .

The battery rack 10 includes two first side plates 21 arranged parallel to each other and two second side plates 22 perpendicular to the first side plates 21 arranged parallel to each other and spaced apart. The first side plates 21 and The second side plate 22 encloses a cavity 11 for accommodating the battery cells 30; the section of the first side plate 21 is an inverted T shape, and the first side plate 21 includes a horizontal portion 21a and a horizontal portion 21a. The vertical portion 21b is formed by extending vertically from the top 21a, the battery cells 30 are fixed on both sides of the vertical portion 21b of the first side plate 21, and an opening 220 is opened on the second side plate 22;

The heat sink 20 with the through hole 200 is matched with the opening 220 , the heat sink 20 is inserted into the opening 220 and detachably connected with the battery holder 10 .

This device can be provided with a plurality of battery racks 10, detachably connected between a plurality of battery racks 10, preferably set to two, two battery racks 10 can accommodate three battery cells 30, when installed, the battery rack 10 Two battery cells 30 are installed on both sides of the vertical portion 21b of the first side plate 21, the heat sink 20 is located between the two battery cells 30, and the heat sink 20 extends from the second side plate 22 The opening 220 is inserted into the battery rack 10 , passing through the second side plate 22 on one side of the battery rack 10 , the cavity 11 and the second side plate 22 on the other side of the battery rack 10 in sequence.

The heat sink 20 is detachably connected to the battery rack 10, the heat sink 20 can go deep into the interior of the battery module and closely adhere to the surface of the battery cell 30, increasing the contact between the heat sink 20 and the battery cell 30 area, so that the heat generated inside the battery cell 30 can be effectively transferred to the heat sink 20, improve the heat dissipation efficiency, balance the temperature difference between the battery cells 30, make the heat dissipation more uniform and support the battery cell at the same time 30. Prevent excessive expansion of the battery cell 30 during charging and discharging.

Further, referring to FIG. 5 and FIG. 6 , the heat sink 20 is in the shape of a plate, a sheet or a sheet, preferably a sheet, so as to make reasonable use of the space of the battery rack 10 . Furthermore, the heat sink 20 is made of aluminum, which is light in weight and has good heat conduction effect.

Further, the through holes 200 are in the shape of strips or dots, preferably in the shape of strips. A plurality of strip-shaped through holes 200 are arranged in parallel and at intervals, and cooperate with the opening 220 of the second side plate 22 , the through holes 200 penetrate from the opening 220 of the second side plate 22 on one side of the battery rack 10 to the At the opening 220 of the second side plate 22 on the other side of the battery rack 10 , an air duct is formed for convective heat exchange. The heat released by the charging and discharging of the battery module is transferred to the heat sink 20 through heat conduction, and the external air flow passes through the opening 220 on the second side plate 22 and the air duct formed by the strip-shaped through holes 200 on the heat sink 20 to dissipate the heat from the heat sink. The heat on the heat sink 20 is brought to the external environment to realize convective heat exchange, so as to achieve the effect of rapid heat dissipation.

On the basis of the above embodiments, in this embodiment, referring to FIG. 7 to FIG. 9 , the second side plate 22 is provided with a fixing part 12 for fixing the heat sink 20, and the fixing part 12 includes a fixing block 121 and A clamping block 122 detachably connected to the fixed block 121, the fixed block 121 is formed by extending from the surface of the second side plate 22 along the inside of the cavity 11, the fixed block 121 is provided with a bayonet 1210, and the clamping block 122 is provided with a protrusion 1220 that matches the bayonet 1210, and the clamping block 122 is clamped on the fixing block 121 to realize the fixing of the heat sink 20 in the battery rack 10, which is conducive to stabilizing the heat released by the battery cell 30 transmitted to the heat sink 20 .

On the basis of the above embodiments, in this embodiment, referring to FIG. 8 and FIG. 9 , the battery rack 10 is further provided with a mounting portion 210 for connecting adjacent battery racks 10 .

Further, the installation portion 210 is disposed at the end of the first side plate 21 , and the installation portion 210 includes a first installation portion 2101 and a second installation portion 2102 arranged alternately. A battery rack 10 is provided with two first mounting parts 2101 and two second mounting parts 2102. The two first mounting parts 2101 are located at the opposite corners of the battery rack 10, and the two second mounting parts 2102 are also located at the opposite corners of the battery rack 10. On the diagonal position of battery rack 10.

Furthermore, the first mounting part 2101 is provided with a positioning pin 3 , and the second mounting part 2102 is provided with a positioning hole 4 matching with the positioning pin 3 .

For the convenience of describing the specific implementation manner, the following content takes two battery racks 10 as an example for description.

During installation, the positioning pin 3 on the first mounting part 2101 on the first battery frame 101 is inserted into the positioning hole 4 on the second mounting part 2102 of the second battery frame 102, or the first mounting part on the second battery frame 102 The positioning pin 3 on the 2101 is inserted into the positioning hole 4 on the second mounting part 2102 on the first battery rack 101 to realize the fast connection between the two battery racks 10 in the horizontal direction, so that the three battery cells 30 Combined to form a battery module to meet the actual needs of users.

On the basis of the above embodiments, in this embodiment, the two ends of the installation part 210 are respectively provided with a first connection part 2103 and a second connection part 2104 .

Furthermore, the first connecting portion 2103 extends from one end of the mounting portion 210 along the extending direction of the first side plate 21, and is then bent to form a direction away from the mounting portion 210; the second connecting portion The portion 2104 extends from the other end of the mounting portion 210 along the extending direction of the first side plate 21 .

Furthermore, the first connecting portion 2103 and the second connecting portion 2104 are respectively provided with opposite first locking blocks 5 and second locking blocks 6 .

The first connection part 2103 and the second connection part 2104 can realize fast connection between multiple battery racks 10 in the vertical direction, so that multiple battery cells 30 can be combined to form a battery module with higher energy. To meet the actual needs of users.

On the basis of the above embodiment, in this embodiment, referring to Fig. 3 and Fig. 4, the tab 300 of the battery module is suspended between the adjacent battery racks 10, preferably, the tab 300 extends from the second The side where the side plate 22 is located extends out of the battery rack 10 .

The device makes full use of the space of the battery rack 10 to make the structure of the battery module more compact. At the same time, it uses the contact heat sink 20 and the air duct to form a composite heat dissipation combined with convection heat exchange to realize the balance between the inside of the battery module and the external environment. The heat transfer can effectively improve the heat dissipation efficiency and reduce the temperature difference between the battery cells 30, so that the temperature distribution inside the battery module is uniform.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. a kind of battery modules radiator, which is characterized in that the device includes：

At least one battery carrier, the battery carrier include two spaced first side plates and perpendicular to described of being mutually parallel Two of side plate are mutually parallel spaced second side plate, and first side plate and the second side plate surround one for installing The cavity of battery cell；The section of first side plate is in inverted T shaped, and first side plate includes horizontal part and hangs down from horizontal part The vertical component effect directly extended to form, battery cell are fixed on the vertical component effect both sides of first side plate, are opened up on second side plate There is opening；

Match the radiating piece with through-hole of setting with the opening, the radiating piece is inserted in the opening, and with it is described Battery carrier is detachably connected.

2. battery modules radiator according to claim 1, which is characterized in that second side plate is equipped with for solid Determine the fixing piece of radiating piece, the fixing piece includes fixed block and the clamping block that is detachably connected with the fixed block.

3. battery modules radiator according to claim 2, which is characterized in that the fixed block is from second side plate Surface is extended to form along the inside cavity, and the fixed block is equipped with bayonet, and the clamping block is equipped with and the bayonet phase The protrusion of cooperation.

4. battery modules radiator according to claim 1, which is characterized in that be additionally provided on the battery carrier for connecting Connect the mounting portion of the adjacent battery carrier.

5. battery modules radiator according to claim 4, which is characterized in that the mounting portion is set to the first side plate End, the mounting portion include the first mounting portion and the second mounting portion of interlaced setting.

6. battery modules radiator according to claim 5, which is characterized in that first mounting portion is equipped with positioning Pin, second mounting portion are equipped with the location hole with the detent fit.

7. battery modules radiator according to claim 5 or 6, which is characterized in that distinguish at the both ends of the mounting portion Equipped with first connecting portion and second connecting portion.

8. battery modules radiator according to claim 7, which is characterized in that the first connecting portion is from the installation The one end in portion extends along the extending direction of first side plate, then is bent to form to the direction far from the mounting portion；Described Two interconnecting pieces are extended to form from the other end of the mounting portion along the extending direction of first side plate.

9. battery modules radiator according to claim 8, which is characterized in that the first connecting portion and the second connection Portion is respectively equipped with opposite the first fixture block and the second fixture block.

10. battery modules radiator according to claim 1, which is characterized in that the lug of battery modules is overhung at phase Between adjacent battery carrier.