CN115621613A

CN115621613A - Liquid cooling box structure of energy storage battery

Info

Publication number: CN115621613A
Application number: CN202211295769.1A
Authority: CN
Inventors: 曾茂进; 罗亮亮; 韩豪雷; 夏治宇; 李训猛
Original assignee: Xiangbo Heat Transfer Technology Co ltd
Current assignee: Xiangbo Heat Transfer Technology Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-01-17

Abstract

The invention relates to the technical field of battery cooling, in particular to an energy storage battery liquid cooling box structure which comprises a box body of a whole device carrier, wherein the box body comprises a shell for storing liquid and a battery module group, a heat conduction plate for heat exchange is arranged between the shell and the battery module group, a flow guide mechanism for guiding liquid is arranged on the box body, a heat conduction mechanism is arranged in the box body, a driving mechanism for controlling the flow of liquid in the heat conduction mechanism is arranged on the box body, the heat conduction mechanism comprises a heat conduction pipe fixedly connected to the heat conduction plate, two ends of the heat conduction pipe are respectively and fixedly connected with an end head a and an end head b, the heat conduction pipe is formed by a continuous bending pipe, the end head a is positioned above the end head b, and a certain amount of cooling liquid is injected into the heat conduction pipe by arranging the heat conduction mechanism, so that the normal cooling of the battery module group is ensured, the phenomenon that the heat in the battery module group cannot be dissipated is prevented, and the service life of the battery module group is prolonged.

Description

Liquid cooling box structure of energy storage battery

Technical Field

The invention relates to the technical field of battery cooling, in particular to a liquid cooling box structure of an energy storage battery.

Background

The cooling method in the existing energy storage battery system comprises direct cooling and indirect cooling, wherein the direct cooling mainly adopts air cooling, the indirect cooling adopts a heat pipe, and the phase change material is combined with water cooling or air cooling and other modes, the air cooling is not only noisy, but also can generate a large amount of vibration during operation to influence the stability of a battery module during operation, and the design of an air channel must be considered when the air cooling heat dissipation is adopted, so that the application scene limitation of the air cooling is greatly deepened, the service life of a fan is short, the fan fault easily occurs, the heat dissipation performance cannot be met, the thermal runaway of the energy storage battery is easily caused, the traditional liquid cooling has a structure which is not compact enough due to more connecting pipelines, the problem of liquid leakage is easily generated, most of water nozzle openings adopt a straight-way design, the problem of liquid leakage is easily generated when cooling liquid enters and exits from a cold plate, and the operation of the device is influenced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an energy storage battery liquid cooling box body structure which has the advantages of improving the sealing performance of equipment sealing and preventing the problem of easy leakage of cooling liquid at a joint when the cooling liquid enters and exits, and solves the problem that the leakage of the cooling liquid is easy to generate when the cooling liquid enters and exits a cold plate because the water nozzle ports are mostly designed in a straight way.

In order to solve the technical problem, the invention provides the following technical scheme:

the utility model provides an energy storage battery liquid cooling box structure, includes the box of whole device carrier, the box is including shell and the battery module group that is used for the stock solution, install the heat-conducting plate that is used for the heat transfer between shell and the battery module group install the water conservancy diversion mechanism that is used for leading liquid on the box, install heat conduction mechanism in the box, install the actuating mechanism who is used for controlling the interior liquid flow of heat conduction mechanism on the box, heat conduction mechanism includes the heat pipe of rigid coupling on the heat-conducting plate, and the both ends of heat pipe rigid coupling respectively have end an and end b, the heat pipe is formed by continuous buckling tube, and end an is located end b top.

Preferably, the diversion mechanism comprises a water inlet pipe connected with an external water pipe, the water inlet pipe is fixedly connected with a diversion pipe b communicated with the end b and the shell, and the other side of the shell is connected with a water outlet pipe.

Preferably, all install the valve on inlet tube and shunt tubes a and the outlet pipe, all be equipped with on inlet tube and shunt tubes a and the outlet pipe and be used for waterproof seal assembly.

Preferably, the sealing assembly comprises sealing rings sleeved on the water inlet pipe and the shunt pipe a, the water inlet pipe and the shunt pipe a are sleeved on sealing sleeves connected with the shell, and the sealing sleeves are provided with a plurality of sealing gaskets.

Preferably, a connecting sleeve for leading out cooling liquid is fixedly connected to the end part of the end head a.

Preferably, the driving mechanism comprises an exhaust fan arranged on the shell and communicated with the shell, and an air inlet pipe communicated with the shell is fixedly connected to the other side of the shell.

Preferably, the shell is provided with an electric telescopic rod, the free end of the electric telescopic rod is fixedly connected with a connecting rod, and the connecting rod is respectively and fixedly connected with a sealing plug a and a sealing plug b which are used for sealing the connecting sleeve and the air inlet pipe.

Preferably, the heat conduction pipe is spiral, and shunt tubes a and b are bent tubes.

By means of the technical scheme, the invention provides an energy storage battery liquid cooling box body structure which at least has the following beneficial effects:

1. this energy storage battery liquid cooling box structure through setting up heat conduction mechanism, can be with the shell when leading out the coolant liquid, at first pour into certain coolant liquid into in the heat-conducting pipe, guarantees the normal cooling to battery module group, prevents that the heat in the battery module group can't spill, causes the loss to appear in the battery module group, is favorable to improving the life of battery module group.

2. This energy storage battery liquid cooling box structure through setting up actuating mechanism, when leading the interior cooling liquid of shell, can derive the steam in the shell, further improves the radiating rate, can avoid the coolant liquid of newly injecting into to absorb steam, causes new cooling liquid cooling effect to descend.

3. This energy storage battery liquid cooling box structure, shunt tubes a and shunt tubes b adopt the design of elbow, can prevent the easy problem of weeping that produces of coolant liquid kneck when the business turn over, arrange shunt tubes a and shunt tubes b fixed position in the box, stability when can increase coolant business turn over cold drawing.

4. This energy storage battery liquid cooling box structure, through setting up seal assembly, shunt tubes an and shunt tubes b adopt multilayer seal structure with the shell, and the dustproof grade of increase equipment that can be great avoids dust to influence the condition of equipment operation.

5. This energy storage battery liquid cooling box structure can make shell and heat-conducting plate contact more laminate with the heat-conducting plate in shell inside, and the existence of shell can be when promoting the radiating efficiency, safety when reinforcing equipment operation.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application:

FIG. 1 is a schematic view of the split structure of the present invention;

FIG. 2 is a schematic perspective view of the present invention in a front view;

FIG. 3 is a schematic view of the internal structure of the case according to the present invention;

fig. 4 is a front view of the heat conductive pipe of the present invention;

FIG. 5 is an enlarged view of the invention at B of FIG. 4;

FIG. 6 is a schematic view of the seal assembly of the present invention;

FIG. 7 is a bottom view of the housing of the present invention;

FIG. 8 is an enlarged view taken at A of FIG. 7 according to the present invention.

Reference numerals:

100. a box body; 101. a housing; 102. a heat conducting plate; 103. a battery module group;

200. a flow guide mechanism; 201. a water inlet pipe; 202. a shunt pipe a; 203. a shunt pipe b; 204. a seal assembly; 2041. a seal ring; 2042. a gasket; 2043. sealing sleeves; 205. a water outlet pipe;

300. a heat conducting mechanism; 301. a heat conduction pipe; 302. a terminal a; 303. a terminal b; 304. connecting sleeves; 305. an exhaust fan; 306. an air inlet pipe;

400. a drive mechanism; 401. an electric telescopic rod; 402. a sealing plug a; 403. and a sealing plug b.

Detailed Description

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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The following describes an energy storage battery liquid cooling box structure provided by some embodiments of the present invention with reference to the accompanying drawings.

The first embodiment is as follows:

referring to fig. 1 to 7, the liquid-cooled tank structure for an energy storage battery provided by the invention includes a tank 100 of a whole device carrier, the tank 100 includes a casing 101 for storing liquid and a battery module group 103, a heat conduction plate 102 for exchanging heat is installed between the casing 101 and the battery module group 103, a flow guide mechanism 200 for guiding liquid is installed on the tank 100, a heat conduction mechanism 300 is installed in the tank 100, a driving mechanism 400 for controlling the flow of liquid in the heat conduction mechanism 300 is installed on the tank 100, and the heat conduction mechanism 300 is arranged to inject a certain amount of cooling liquid into a heat conduction pipe 301 when the casing 101 guides the cooling liquid out, so as to ensure the normal cooling of the battery module group 103, prevent the heat in the battery module group 103 from failing to escape, so that the battery module group 103 is worn out, which is beneficial to improving the service life of the battery module group 103, and the arrangement of the driving mechanism 400 can exhaust the hot gas in the casing 101, thereby avoiding the heat lifting of the residual hot gas to the newly injected cooling liquid and affecting the subsequent heat dissipation of the battery module group 103.

The heat conducting mechanism 300 includes a heat conducting pipe 301 fixed on the heat conducting plate 102, an end a302 and an end b303 are respectively fixed at two ends of the heat conducting pipe 301, the heat conducting pipe 301 is formed by a continuous bending pipe, and the end a302 is located above the end b303, the heat conducting pipe 301 is spiral, and the shunt pipe a202 and the shunt pipe b203 are bent pipe-shaped, and the design of the elbow is adopted, so that the problem of liquid leakage easily generated at the interface when the cooling liquid enters and exits can be prevented.

Specifically, the diversion mechanism 200 includes a water inlet pipe 201 connected to an external water pipe, a shunt pipe b203 connected to a head b303 and the inside of the casing 101 is respectively and fixedly connected to the water inlet pipe 201, an outlet pipe 205 is connected to the other side of the casing 101, after the coolant in the heat conduction pipe 301 in the casing 101 is led out, the heat conduction pipe 301 is blocked, and before the coolant in the box 100 is not led out, the shunt pipe b203 can lead the coolant into the heat conduction pipe 301, so that the heat dissipation of the battery module group 103 can be continued while the liquid is discharged.

Furthermore, valves are mounted on the water inlet pipe 201, the shunt pipe a202 and the water outlet pipe 205, the water inlet pipe 201, the shunt pipe a202 and the water outlet pipe 205 are provided with sealing components 204 for water prevention, the valves on the shunt pipe a202 are in a closed state before the liquid is guided into the shell 101, and after the liquid is guided into the shell 101, the valves on the shunt pipe a202 are opened, so that the speed of injecting the cooling liquid can be increased.

Furthermore, the sealing assembly 204 comprises a sealing ring 2041 sleeved on the water inlet pipe 201 and the shunt pipe a202, the water inlet pipe 201 and the shunt pipe a202 are sleeved on a sealing sleeve 2043 connected with the shell 101, a plurality of sealing gaskets 2042 are installed on the sealing sleeve 2043, the sealing ring 2041, the sealing gaskets 2042 and the sealing sleeve 2043 are arranged, and the shunt pipe a202, the shunt pipe b203 and the shell 101 adopt a multi-layer sealing structure, so that the dustproof grade of the equipment can be greatly increased, and the condition that the running of the equipment is influenced by dust is avoided.

The end of the end a302 is fixedly connected with a connecting sleeve 304, the connecting sleeve 304 is arranged to prevent the coolant in the heat conducting pipe 301 from being led out, the end b303 is at the highest point, the end a302 is at the lowest point, and the heights of the heat conducting pipes 301 are sequentially reduced, so that the speed of leading out the coolant in the heat conducting pipes 301 can be increased.

According to the embodiment, the shunt tubes a202 and the shunt tubes b203 are arranged in the shell 101 at fixed positions, so that the stability of a cooling medium entering and exiting from the cold plate can be improved, the heat conducting plate 102 is arranged in the shell 101, the energy storage battery module group 103 can be contacted with the heat conducting plate 102 to be more attached to the heat conducting plate, and the safety of equipment during operation can be enhanced while the heat dissipation efficiency is improved due to the existence of the shell 101.

The second embodiment:

with reference to fig. 7 and fig. 8, in the first embodiment, the driving mechanism 400 includes an exhaust fan 305 installed on the outer shell 101 and communicated with the outer shell 101, and the air inlet pipe 306 communicated with the outer shell 101 is fixedly connected to the other side of the outer shell 101, so that when the cooling liquid in the outer shell 101 is guided, the hot air in the outer shell 101 can be guided out, the heat dissipation speed is further increased, and the phenomenon that the hot air is absorbed by the newly injected cooling liquid, which causes the cooling quality of the new cooling liquid to be reduced, can be avoided.

Specifically, an electric telescopic rod 401 is installed on the housing 101, a connecting rod is fixedly connected to a free end of the electric telescopic rod 401, a sealing plug a402 and a sealing plug b403 for sealing the connecting sleeve 304 and the air inlet pipe 306 are respectively and fixedly connected to the connecting rod, and the free end of the electric telescopic rod 401 extends or contracts to drive the sealing plug a402 and the sealing plug b403 to move, so that the connecting sleeve 304 and the air inlet pipe 306 can be opened or closed.

The embodiment can be seen as follows: after the coolant in the heat pipe 301 in the housing 101 is led out, the heat pipe 301 is blocked, and before the coolant in the case 100 is not led out, a certain amount of coolant is injected into the heat pipe 301 to ensure normal cooling of the battery module group 103, and before the coolant in the housing 101 is not led out, the valve on the shunt pipe a202 is closed, and after the fluid is led out from the housing 101, the valve on the shunt pipe a202 is opened to inject the coolant into the housing 101, and after the injection is completed, the injection is stopped.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an energy storage battery liquid cooling box structure, includes box (100) of whole device carrier, box (100) are including shell (101) and battery module group (103) that are used for the stock solution, its characterized in that: a heat conducting plate (102) for heat exchange is arranged between the shell (101) and the battery module group (103), a flow guide mechanism (200) for guiding liquid is arranged on the box body (100), a heat conducting mechanism (300) is arranged in the box body (100), and a driving mechanism (400) for controlling the liquid in the heat conducting mechanism (300) to flow is arranged on the box body (100);

the heat conduction mechanism (300) comprises a heat conduction pipe (301) fixedly connected to the heat conduction plate (102), two ends of the heat conduction pipe (301) are respectively fixedly connected with an end a (302) and an end b (303), the heat conduction pipe (301) is formed by continuous bent pipes, and the end a (302) is located above the end b (303).

2. The energy storage battery liquid cooling box structure of claim 1, characterized in that: the diversion mechanism (200) comprises a water inlet pipe (201) connected with an external water pipe, the water inlet pipe (201) is fixedly connected with a shunt pipe b (203) communicated with the end b (303) and the shell (101), and the other side of the shell (101) is connected with a water outlet pipe (205).

3. The energy storage battery liquid cooling box structure of claim 2, wherein: all install the valve on inlet tube (201) and shunt tubes a (202) and outlet pipe (205), all be equipped with on inlet tube (201) and shunt tubes a (202) and outlet pipe (205) and be used for waterproof seal assembly (204).

4. The energy storage battery liquid cooling box structure of claim 3, wherein: the sealing assembly (204) comprises a sealing ring (2041) sleeved on the water inlet pipe (201) and the shunt pipe a (202), the water inlet pipe (201) and the shunt pipe a (202) are sleeved on a sealing sleeve (2043) connected with the shell (101), and a plurality of sealing gaskets (2042) are installed on the sealing sleeve (2043).

5. The energy storage battery liquid cooling box structure of claim 1, characterized in that: and a connecting sleeve (304) for leading out cooling liquid is fixedly connected to the end part of the head a (302).

6. The energy storage battery liquid cooling box structure of claim 1, characterized in that: the driving mechanism (400) comprises an exhaust fan (305) which is arranged on the shell (101) and communicated with the shell, and an air inlet pipe (306) which is communicated with the shell (101) is fixedly connected to the other side of the shell (101).

7. The energy storage battery liquid cooling box structure of claim 1, characterized in that: the electric telescopic rod (401) is installed on the shell (101), the free end of the electric telescopic rod (401) is fixedly connected with a connecting rod, and a sealing plug a (402) and a sealing plug b (403) are fixedly connected onto the connecting rod.

8. The energy storage battery liquid cooling box structure of claim 1, wherein: the heat transfer pipe (301) has a spiral shape.

9. The energy storage battery liquid cooling box structure of claim 3, characterized in that: the shunt pipe a (202) and the shunt pipe b (203) are in a bent pipe shape.