CN218102260U

CN218102260U - High-voltage box and high-voltage box liquid cooling control system

Info

Publication number: CN218102260U
Application number: CN202222223220.3U
Authority: CN
Inventors: 不公告发明人
Original assignee: Jiangsu Zenio New Energy Battery Technologies Co Ltd
Current assignee: Jiangsu Zenio New Energy Battery Technologies Co Ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2022-12-20
Anticipated expiration: 2032-08-24

Abstract

The utility model discloses a high pressure box and high pressure box liquid cooling control system, including interior casing and shell body, interior casing setting is on the shell body to form medium heat exchange channel between the two, be provided with inlet and liquid outlet with medium heat exchange channel intercommunication on the shell body, and be connected with the liquid cooling system through inlet and liquid outlet. The high-voltage box liquid cooling control system is used for controlling the liquid cooling system to supply cooling media to circulate in the medium heat exchange channel of the high-voltage box, so that the high-voltage box is cooled. The utility model discloses a structure of high-pressure box is optimized, solves the defect that current high-pressure box temperature rise brought and is not enough.

Description

High-voltage box and high-voltage box liquid cooling control system

Technical Field

The utility model belongs to the technical field of power battery, a high-pressure box and high-pressure box liquid cooling control system is related to.

Background

Along with the development progress of lithium batteries, products such as electric automobiles and energy storage systems have higher and higher demands on lithium batteries, along with higher and higher requirements on the use working conditions (charge and discharge multiplying power, ambient temperature, working temperature and the like) of lithium battery products, the temperature rise of electric devices in a high-voltage distribution box is also increased, so that the internal temperature of the high-voltage distribution box (hereinafter referred to as a high-voltage box) is also increased, if the high-voltage box cannot conduct internal heat out in time, the internal environment and the temperature of the electric devices of the high-voltage box are higher, the overhigh temperature rise of the high-voltage box not only influences the service life of the electric devices, but also causes overlarge temperature rise of the system, high-temperature faults of the system, safety risk faults of the system and the like.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the problem that will solve: the utility model discloses a structure of high-pressure box is optimized, solves the defect that current high-pressure box temperature rise brought and is not enough.

In order to solve the above problem, the utility model discloses a scheme as follows:

according to the utility model discloses a high-pressure box, including inner shell and shell body, the inner shell size is less than the shell body, makes the inner shell body accept in the shell body, and leaves the clearance between the inner shell body and the shell body, thereby forms sealed medium heat exchange channel; and the outer shell is provided with a liquid inlet and a liquid outlet which are connected with the medium heat exchange channel and used for connecting the liquid cooling system.

Furthermore, according to the high-voltage box of the utility model, the inner shell and the outer shell comprise a box body structure with an open top, which is composed of a bottom plate and a surrounding plate arranged on the bottom plate; the outer shell is made of metal materials; the inner shell is made of a high polymer insulating material; the inner shell and the outer shell are fixed through welding between the bottom plates of the inner shell and the outer shell; the high-voltage box also comprises an upper cover arranged at the opening at the top.

Further, according to the utility model discloses a high-pressure box, the ectonexine surface of shell body all is provided with the insulating layer.

Furthermore, according to the high-voltage box of the utility model, the inner shell and the outer shell are both square structures; the gap width between the four side plates of the outer shell and the inner shell is the same.

Further, according to the high-pressure box of the present invention, the liquid inlet and the liquid outlet are both disposed on the same side of the square structure; and a partition is arranged between the liquid inlet and the liquid outlet in the gap.

Further, according to the high-voltage box of the utility model, the upper cover is provided with a connector; the electronic element arranged in the inner shell is connected with the connector.

Further, according to the utility model discloses a high-pressure box still includes and passes through inlet and liquid outlet connect the liquid cooling system of medium heat exchange passageway.

Further, according to the utility model, the high-voltage box also comprises a temperature controller connected with the liquid cooling system; the electronic component arranged in the inner shell comprises a temperature sensor; the liquid cooling system and the temperature sensor are connected with the temperature controller.

According to the utility model discloses a high-pressure box liquid cooling control system, including temperature controller, liquid cooling system, still include foretell high-pressure box, be provided with temperature sensor in the interior casing, liquid cooling system and temperature sensor connect the temperature controller, the liquid cooling system passes through the medium heat exchange passageway of inlet and liquid outlet connection high-pressure box; the temperature controller is connected with the liquid cooling system and the temperature sensor and used for judging whether to control the liquid cooling system to work according to the temperature measured by the temperature sensor.

Further, according to the utility model discloses a high pressure box liquid cooling control system, the liquid cooling system is the liquid cooling system or the independent liquid cooling system of whole car liquid cooling system or battery package, temperature controller is whole car controller or BMS.

The technical effects of the utility model are as follows:

1. the high-pressure box passes through the external liquid cooling system of inlet and liquid outlet, and the liquid cooling system here can be the liquid cooling system of battery package to make the high-pressure box need not establish a dedicated liquid cooling system alone, reduce cost and the manufacturing degree of difficulty, the liquid cooling system of borrowing the battery package ingeniously.

2. Can quickly and effectively (liquid cooling is overall and uniform) reduce the temperature of the high-voltage box (and the internal electric devices of the high-voltage box), the problem of temperature rise of the high-voltage box is efficiently solved;

3. the inner shell material of the high-voltage box is a high-molecular polymer, has excellent performances of insulation, high temperature resistance, good heat conduction, high strength and the like, ensures the insulation performance of the liquid cooling system and electric devices in the high-voltage box, and the outer shell material is an aluminum alloy material, increases the overall strength of the high-voltage box and has good heat conduction performance;

4. the high-voltage box ensures the insulation performance, the heat conduction performance, the stability and the like of the high-voltage box through the high-temperature electric insulation coating sprayed on the outer surface of the outer shell;

5. the interface of the temperature sensor is integrated in the interface of the low-voltage control module on the high-voltage box, is positioned in the interface socket of the low-voltage control module, and is connected with an external controller in a plugging mode, so that the simplification of a temperature acquisition mode is realized (considering the path, space, plug-in and the like of a temperature acquisition wiring harness);

6. the high-pressure box is simple and rich in raw materials, does not need a complex process, does not produce environmental pollution products, and meets the requirements of environmental protection and harmlessness.

Drawings

Fig. 1 is a schematic front view of an embodiment of the present invention;

fig. 2 is an exploded view of an embodiment of the invention;

fig. 3 is a schematic cross-sectional structure diagram of a high-voltage box according to an embodiment of the present invention;

fig. 4 is a control operation schematic diagram during cooling of the embodiment of the present invention.

Wherein the content of the first and second substances,

1 box body, 11 interior casings, 111 bottom plates, 112 bounding walls, 12 outer casings, 13 clearances, 14 liquid inlets, 15 liquid outlets, 16 fixed modules, 161 fixed orifices, 19 partitions, 2 upper covers, 3 connectors, 31 high-voltage control module interface sockets, 32 low-voltage control module interface sockets, 4 sealing gaskets, 5 temperature sensors, 6 temperature controllers, 7 liquid cooling systems, 71 circulating pumps, 72 radiators, 721 inlets and 722 outlets.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, 2, and 3, a high voltage box for accommodating electronic components; comprises a box body 1 and an upper cover 2. The box body 1 is a double-layer structure with an open top and comprises an inner shell 11 and an outer shell 12. Wherein, the size of the inner shell 11 is smaller than that of the outer shell 12, and the inner shell is accommodated in the outer shell 12; the inner housing 11 houses electronic components and a gap 13 is left between the inner housing 11 and the outer housing 12. The inner housing 11 and the outer housing 12 form a box structure with an open top, and accordingly the gap 13 is sealed by the top seal 4 to form a sealed medium heat exchange channel. The outer shell 12 is provided with a liquid inlet 14 and a liquid outlet 15 which are connected with the medium heat exchange channel. The liquid inlet 14 and the liquid outlet 15 are used for connecting the liquid cooling system 7. Thereby, the cooling system 7 drives the cooling liquid to flow in the medium heat exchange channel between the inner shell 11 and the outer shell 12, thereby cooling the electronic components in the inner shell 11.

The upper cover 2 is arranged at the open top of the box body 1 and used for sealing the open top of the box body 1. In this embodiment, the upper cover 2 is detachably fixed to the top opening of the box 1 by, for example, a bolt or a snap. The upper cover 2 is provided with a connector 3. In this embodiment, connector 3 includes a high voltage control module interface socket 31 and a low voltage control module interface socket 32. The electronic components inside the case 1 are connected to the connectors 3, thereby enabling the electronic components inside the case 1 to be connected to external electronic devices.

In this embodiment, the inner housing 11 and the outer housing 12 both have a box structure with a square structure with an open top, and include a bottom plate 111 and four surrounding plates 112 disposed on the bottom plate 111. The inner housing 11 and the outer housing 12 are fixed to each other by welding the bottom plate 111 of the inner housing 11 and the bottom plate 111 of the outer housing 12. Those skilled in the art will appreciate that other configurations, such as cylindrical, may be used for the inner housing 11 and the outer housing 12. With the inner and

outer housings

11, 12 being cylindrical structures, the inner and

outer housings

11, 12 are generally coaxially arranged, thereby enabling the gap 13 to be equally wide throughout. Specifically, in the present embodiment, the four panels 112 of the inner case 11 and the four panels 112 of the outer case 12 are parallel, and the width of the gap 13 is the same. The liquid inlet 14 and the liquid outlet 15 are provided at one side of the box body 1 having a square structure. In this embodiment, in order to enable the cooling liquid to flow around the box body 1 in the medium heat exchange channel, referring to fig. 3, a partition 19 may be further disposed between the liquid inlet 14 and the liquid outlet 15 in the gap 13, so that the cooling liquid from the liquid inlet 14 can be prevented from directly flowing out from the liquid outlet 15 nearby. In addition, in order to facilitate the installation of the high-voltage box, two fixing modules 16 are respectively disposed at two ends of the outer casing 12, fixing holes 161 are disposed on the fixing modules 16, and the high-voltage box can be installed by passing bolts through the fixing holes 161.

In order to ensure the physical strength and insulation performance of the high-voltage box, in this embodiment, the inner housing 11 is preferably made of a polymer insulation material; the outer shell 12 is preferably made of aluminum alloy, so that the outer shell has high strength, fast heat conduction and good toughness, and the inner and outer surfaces of the outer shell 12 are provided with insulating layers. The polymer insulating material is preferably made of polyamide, polyphthalamide and other materials with high temperature resistance, wear resistance, high strength and good flexibility. The insulating layer arranged on the inner layer and the outer layer of the outer shell 12 is preferably sprayed on the insulating coating on the surface by adopting a spraying mode, and can be made of high-temperature enamel, alumina and other materials. In the case where the inner case 11 is made of a polymer insulating material and the outer case 12 is made of an aluminum alloy, the bottom plate 111 of the inner case 11 and the bottom plate 111 of the outer case 12 are usually welded by thermal fusion.

Further, referring to the example of fig. 4, a temperature control system for a high-voltage box comprises a temperature controller 6, a liquid cooling system 7 and the high-voltage box as described above, wherein an electronic component of the high-voltage box arranged in an inner shell 11 of the high-voltage box comprises a temperature sensor 5, the liquid cooling system 7 and the temperature sensor 5 are connected with the temperature controller 6, and the liquid cooling system 7 is connected with a medium heat exchange channel through a liquid inlet 14 and a liquid outlet 15; the temperature sensor 5 is used for collecting the temperature in the high-voltage box and feeding temperature information back to the temperature controller 6, and the temperature controller 6 judges whether to control the liquid cooling system 7 to work or not according to the temperature information. The liquid cooling system 7 in this embodiment includes at least a circulation pump 71 and a radiator 72. The radiator 72 is used for radiating the cooling liquid, and an inlet 721 and an outlet 722 of the radiator are respectively connected with the liquid outlet 15 and the liquid inlet 14 of the box body 1 through pipelines. The piping connected between the radiator 72 and the case 1 forms a closed coolant circulation loop, and a circulation pump 71 is provided on the coolant circulation loop for driving the coolant to flow in the coolant circulation loop. The temperature controller 6 is used for receiving the temperature in the box body 1 detected by the temperature sensor 5, judging whether the liquid cooling system 7 needs to be started according to the temperature in the box body 1, and starting the circulating pump 71 to realize liquid cooling of the box body 1 when the temperature in the box body 1 is too high. The temperature sensor 5 in the high-pressure cartridge may be provided in plurality.

In addition, in the above embodiment, the temperature controller 6 and the liquid cooling system 7 are independent modules attached to the high-voltage box. Those skilled in the art will appreciate that the temperature controller 6 and the liquid cooling system 7 may also be external modules, such as, for example, when the high voltage box of the present embodiment is used in an electric vehicle, the high voltage box is typically used for packaging certain more important modules, such as for storing BMS modules. At this time, the temperature controller 6 may be the BMS module itself or a controller of the entire vehicle, and the liquid cooling system 7 may be a liquid cooling system of the battery pack or a liquid cooling system of the entire vehicle; in this embodiment, the liquid cooling system 7 is a liquid cooling system of a battery pack.

Claims

1. A high pressure cartridge comprising an inner housing and an outer housing, the inner housing being smaller in size than the outer housing such that the inner housing is received within the outer housing with a gap between the inner housing and the outer housing to form a sealed media heat exchange channel; and the outer shell is provided with a liquid inlet and a liquid outlet which are connected with the medium heat exchange channel and used for connecting the liquid cooling system.

2. The high voltage cartridge of claim 1, wherein the inner and outer housings comprise an open-topped cartridge structure comprising a base plate and a shroud disposed on the base plate; the outer shell is made of metal materials; the inner shell is made of a high polymer insulating material; the inner shell and the outer shell are fixed through welding between the bottom plates of the inner shell and the outer shell; the high-voltage box also comprises an upper cover arranged at the top opening.

3. The high voltage cartridge of claim 2, wherein the inner and outer surfaces of the outer housing are each provided with an insulating layer.

4. The high voltage cartridge of claim 2, wherein the inner and outer housings are each of a square configuration; the gap width between the four side plates of the outer shell and the inner shell is the same.

5. The high pressure cartridge of claim 4, wherein the inlet and outlet ports are disposed on the same side of a square configuration; and a partition is arranged between the liquid inlet and the liquid outlet in the gap.

6. The high pressure manifold as recited in claim 2, wherein said upper cover is provided with a connector; the electronic element arranged in the inner shell is connected with the connector.

7. The high pressure cartridge of claim 6, further comprising a liquid cooling system connected to the media heat exchange path through said inlet and outlet ports.

8. The high pressure cartridge of claim 7, further comprising a temperature controller connected to said liquid cooling system; the electronic component arranged in the inner shell comprises a temperature sensor; the liquid cooling system and the temperature sensor are connected with the temperature controller.

9. A liquid cooling control system of a high-pressure box, which comprises a temperature controller and a liquid cooling system, and is characterized by further comprising the high-pressure box as claimed in any one of claims 1 to 6, wherein a temperature sensor is arranged in the inner shell, the liquid cooling system and the temperature sensor are connected with the temperature controller, and the liquid cooling system is connected with a medium heat exchange channel of the high-pressure box through the liquid inlet and the liquid outlet; the temperature controller is connected with the liquid cooling system and the temperature sensor and used for judging whether to control the liquid cooling system to work according to the temperature measured by the temperature sensor.

10. The liquid cooling control system for the high-voltage box according to claim 9, wherein the liquid cooling system is a liquid cooling system of a vehicle or a battery pack or an independent liquid cooling system, and the temperature controller is a vehicle control unit or a BMS.