CN213816251U

CN213816251U - Independent battery heat management unit

Info

Publication number: CN213816251U
Application number: CN202022886312.0U
Authority: CN
Inventors: 沈兴亚; 胡元元; 胡刚
Original assignee: Jingzhou Chutai New Energy Technology Co ltd
Current assignee: Jingzhou Chutai New Energy Technology Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-07-27
Anticipated expiration: 2030-12-03

Abstract

The utility model relates to an independent battery heat management unit, which comprises a shell, a refrigerating system, a liquid cooling system, a controller assembly and a power driving module, wherein the refrigerating system, the liquid cooling system, the controller assembly and the power driving module are arranged in the shell; the refrigeration system comprises a compressor, a condenser, a throttling device and a plate heat exchanger which are sequentially connected in series through copper pipes, wherein parallel refrigerant channels and liquid cooling channels are arranged in the plate heat exchanger, and the refrigerant channels are connected in series to the refrigeration system; the liquid cooling system comprises a water pump and a liquid cooling channel in the plate heat exchanger, the water pump and the liquid cooling channel are communicated through a liquid pipe, a liquid inlet and a liquid outlet are formed in the shell, and the liquid cooling system is connected with an external battery radiator through the liquid inlet and the liquid outlet to form a liquid cooling loop. The utility model discloses effectively improve battery radiating efficiency, compact structure, easy operation, adaptability is wide.

Description

Independent battery heat management unit

Technical Field

The utility model relates to a battery management field, concretely relates to stand alone type battery heat management unit.

Background

At present, the shortage of energy has attracted the worldwide attention. The electric energy is used as a clean and environment-friendly sustainable energy and is widely applied to various fields. It is also widely used as a primary storage device for electrical energy, a battery. In the use process of the battery, especially in the use process of the automobile battery, because the working current of the power battery is large, the heat generation amount is large, and meanwhile, the battery pack is in a relatively closed environment, the temperature of the battery is increased, and the difference of the heat dissipation performance of the battery directly influences the performance and the service life of the battery. Therefore, it is important to research a system that can make the battery have good heat dissipation performance.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem who exists among the prior art, provide a stand alone type battery heat management unit, effectively improve battery radiating efficiency, simplify the operability and the installation service efficiency of battery heat management unit to different [ electric ] motor coach, electric special purpose vehicle etc. in the rational adaptation market.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

an independent battery heat management unit comprises a shell, a refrigeration system, a liquid cooling system, a controller assembly and a power driving module, wherein the refrigeration system, the liquid cooling system, the controller assembly and the power driving module are arranged in the shell; the refrigeration system comprises a compressor, a condenser, a throttling device and a plate heat exchanger which are sequentially connected in series through copper pipes, wherein parallel refrigerant channels and liquid cooling channels are arranged in the plate heat exchanger, and the refrigerant channels are connected in series to the refrigeration system; the liquid cooling system comprises a water pump and a liquid cooling channel in the plate heat exchanger, the water pump and the liquid cooling channel are communicated through a liquid pipe, a liquid inlet and a liquid outlet are formed in the shell, and the liquid cooling system is connected with an external battery radiator through the liquid inlet and the liquid outlet to form a liquid cooling loop.

Preferably, the refrigeration system is further provided with a pressure switch, the pressure switch is arranged on the copper pipe, and the pressure switch is in signal connection with the controller assembly and is used for feeding back pressure data in the copper pipe to the controller assembly.

Preferably, still install the condensation fan on the shell, the condensation fan is close to the condenser setting, the condensation fan with controller assembly signal connection.

Preferably, the interior of the shell is provided with a first area and a second area which are arranged side by side, the condensation fan, the condenser, the power driving module and the controller are arranged in the first area in a layered mode, and the compressor, the throttling device, the plate heat exchanger and the water pump are integrated in the second area.

Preferably, the housing is provided with a plurality of heat dissipation holes, and the heat dissipation holes are formed in the side surface of the first area.

Preferably, a control input interface is arranged on the shell and is in signal connection with the controller assembly.

Preferably, a power input interface is arranged on the shell and is in power supply connection with the power driving module.

Preferably, a refrigerant inlet is formed in the compressor, the refrigerant inlet penetrates through the housing, and the refrigerant inlet is sealable.

Preferably, a handle is arranged on the shell, the handle is hinged with the shell, and the handle can be turned over.

The utility model has the advantages that:

the utility model discloses effectively improve battery radiating efficiency, with the unit integration to the shell in, compact structure has simplified the operability and the installation service efficiency of battery heat management unit to the different outside battery radiator of accessible adaptation, different [ electric ] motor coach, electric special purpose vehicle etc. in the reasonable adaptation market.

Drawings

FIG. 1 is a perspective view of the present invention;

fig. 2 is a schematic view of the internal structure of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the device comprises a shell, 2, a compressor, 3, a condenser, 4, a throttling device, 5, a plate heat exchanger, 6, a controller assembly, 7, a power driving module, 8, a water pump, 9, a pressure switch, 10, a condensing fan, 11, a copper pipe, 12, a liquid pipe, 13, a heat dissipation hole, 14, a control input interface, 15, a power input interface, 16, a refrigerant input port, 17, a handle, 18, a liquid inlet, 19 and a liquid outlet;

A. a first zone, B, a second zone.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

The independent battery heat management unit as shown in fig. 1-2 comprises a shell 1, and a refrigeration system, a liquid cooling system, a controller assembly 6 and a power driving module 7 which are arranged in the shell 1, wherein the controller assembly 6 controls the refrigeration system and the liquid cooling system to operate, and the power driving module 7 provides a power supply for the unit; the refrigeration system comprises a compressor 2, a condenser 3, a throttling device 4 (equivalent to an expansion valve) and a plate heat exchanger 5 which are sequentially connected in series through a copper pipe 11, wherein a parallel refrigerant channel and a liquid cooling channel are arranged in the plate heat exchanger 5, and the refrigerant channel is connected in series to the refrigeration system; the liquid cooling system includes water pump 8 in the plate heat exchanger 5 the liquid cooling passageway, water pump 8 the liquid cooling passageway passes through liquid pipe 12 intercommunication, be equipped with inlet 18 and liquid outlet 19 on the shell 1, the liquid cooling system passes through inlet 18 and the external battery radiator of liquid outlet 19 connection forms the liquid cooling return circuit.

In the refrigeration loop, a refrigerant circulates in the refrigeration loop to perform compression in the compressor 2, condensation in the condenser 3, expansion in the throttling device 4, evaporation in the plate heat exchanger 5 and condensation in the recompression … … in the compressor 2, so that heat is released in the evaporation process, heat in the plate heat exchanger 5 is transferred to the condenser 3 to be released, and the aim of cooling the plate heat exchanger 5 is fulfilled. The water pump 8, the liquid cooling channel in the plate heat exchanger 5 and the external battery radiator form a closed liquid cooling loop through the liquid pipe 12, and the cooling liquid is driven by the water pump 8 to circularly flow. The coolant may be cooling water or other cooling medium such as cooling oil. The external battery radiator exchanges heat with the battery pack to absorb heat of the battery pack into the coolant. When the heated cooling liquid flows through the liquid cooling channel in the plate heat exchanger 5, the cooling liquid exchanges heat with the refrigerant channel in the plate heat exchanger 5, the refrigerant absorbs heat in the plate heat exchanger 5, and the cooling liquid releases heat in the plate heat exchanger 5 to be cooled, and the cooling liquid reaches the external battery radiator again through circulation to absorb heat of the battery pack again, so that the purpose of efficiently cooling the battery pack is achieved through multiple times of circulation.

In the whole heat exchange process, the controller assembly 6 controls the compressor 2 and the water pump 8 to operate, and the power driving module 7 provides power for electrified parts of the whole unit so as to maintain the operation of the unit.

In this embodiment, as shown in fig. 2, a pressure switch 9 is further disposed in the refrigeration system, the pressure switch 9 is disposed on the copper pipe 11, and the pressure switch 9 is in signal connection with the controller assembly 6, and is configured to feed back pressure data in the copper pipe 11 to the controller assembly 6. The pressure switch 9 monitors the pressure data in the refrigeration loop all the way and feeds the data back to the controller assembly 6, so as to prevent the system from being damaged by overhigh or overlow system pressure caused by faults in the system. For example, the refrigerant leaks due to an accidental impact, and the pressure switch 9 is turned off when the pressure is too low, so that the controller assembly 6 turns off the compressor 2.

As shown in fig. 1, a condensing fan 10 is further installed on the housing 1, the condensing fan 10 is disposed near the condenser 3, and the condensing fan 10 is in signal connection with the controller assembly 6. The condensing fan 10 is close to one surface of the condenser 3, and blows out heat released by the condenser 3 in a mode of blowing air to the outside of the unit, so that the heat dissipation efficiency of the condenser 3 is improved.

As shown in fig. 2, a first area a and a second area B are disposed side by side inside the housing 1, the condensing fan 10, the condenser 3, the power driving module 7, and the controller assembly 6 are installed in the first area a in a layered manner, and the compressor 2, the throttling device 4, the plate heat exchanger 5, and the water pump 8 are integrated in the second area B. In structural design, the components of the unit are arranged in a partition mode according to the heat productivity, the condenser 3 with high heat productivity, the power driving module 7 and the controller assembly 6 are independently installed in the first area A in a layered mode, and components in the first area A are subjected to forced heat dissipation through the strong air exhaust effect of the condensing fan 10, so that a better heat dissipation effect is achieved; the rest parts are arranged in the second area B, the refrigerant absorbs heat in a compression stage (in the compressor 2), an expansion stage (in the throttling device 4) and an evaporation stage (in the plate heat exchanger 5), and the heat generated in the running process of the water pump 8 is very small, so that the temperature of the parts in the second area B is not too high. In addition, in the refrigerant evaporation stage, the refrigerant in the plate heat exchanger 5 can absorb the heat of the cooling liquid in the liquid cooling system, so that the temperature of the cooling liquid flowing through the second area B does not have great influence on the temperature in the second area B. In order to avoid the influence of the heat released in the condensation process on the temperature of the second area B and the reduction of the refrigeration efficiency of the refrigeration system, a partition plate can be arranged between the first area A and the second area B for heat insulation.

As shown in fig. 1, a plurality of heat dissipation holes 13 are formed in the housing 1, and the heat dissipation holes 13 are formed in the side surface of the first area a. Under the suction that the condensing fan produced, wind gets into inside the shell 1 from louvre 13, takes away the heat in the first district A of shell 1 and blows off, reaches the effect of forcing the heat dissipation for first district A, has improved the radiating efficiency in the organism.

Preferably, a control input interface 14 is arranged on the housing 1, and the control input interface 14 is in signal connection with the controller assembly 6. The control input interface 14 is connected with an upper computer, and an operator can set parameters of the local unit and perform other control on the local unit through the upper computer.

Preferably, a power input interface 15 is arranged on the housing 1, and the power input interface 15 is in power supply connection with the power driving module 7. The power driving module 7 converts an external power supply into a power supply required by each charged component in the unit.

Preferably, a refrigerant inlet 16 is formed on the compressor 2, the refrigerant inlet 16 penetrates through the housing 1, and the refrigerant inlet 16 is sealable. The refrigerant inlet 16 is used for charging the compressor 2 with refrigerant, and the refrigerant inlet 16 is in a closed state during normal use.

As shown in fig. 1-2, the housing 1 is further provided with two handles 17, and the two handles 17 are symmetrically arranged on the side surface of the housing 1. The handle 17 is hinged with the shell 1, can be flexibly turned and is convenient to operate. When the handle 17 is not in use, it is buckled on the lower shell to reduce the volume of the device.

The working principle is as follows:

in the refrigeration loop, a refrigerant circulates in the refrigeration loop to perform compression in the compressor 2, condensation in the condenser 3, expansion in the throttling device 4, evaporation in the plate heat exchanger 5 and condensation in the recompression … … in the compressor 2, so that heat is released in the evaporation process, heat in the plate heat exchanger 5 is transferred to the condenser 3 to be released, and the aim of cooling the plate heat exchanger 5 is fulfilled. The water pump 8, the liquid cooling channel in the plate heat exchanger 5 and the external battery radiator form a closed liquid cooling loop through the liquid pipe 12, and the cooling liquid is driven by the water pump 8 to circularly flow. The external battery radiator exchanges heat with the battery pack to absorb heat of the battery pack into the coolant. When the heated cooling liquid flows through the liquid cooling channel in the plate heat exchanger 5, the cooling liquid exchanges heat with the refrigerant channel in the plate heat exchanger 5, the refrigerant absorbs heat in the plate heat exchanger 5, and the cooling liquid releases heat in the plate heat exchanger 5 to be cooled, and the cooling liquid reaches the external battery radiator again through circulation to absorb heat of the battery pack again, so that the battery pack is circulated for multiple times to achieve the purpose of effectively cooling the battery pack.

The pressure switch 9 monitors the pressure data in the refrigeration loop all the way and feeds the data back to the controller assembly 6, so as to prevent the system from being damaged by overhigh or overlow system pressure caused by faults in the system. For example, the refrigerant leaks due to an accidental impact, and the pressure switch 9 is turned off when the pressure is too low, so that the controller assembly 6 turns off the compressor 2.

The utility model discloses effectively improve battery radiating efficiency, with the unit integration to shell 1 in, compact structure has simplified the operability and the installation service efficiency of battery heat management unit to the different outside battery radiator of accessible adaptation, different [ electric ] motor coach, electric special purpose vehicle etc. in the reasonable adaptation market.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The independent battery heat management unit is characterized by comprising a shell (1), and a refrigeration system, a liquid cooling system, a controller assembly (6) and a power driving module (7) which are arranged in the shell (1), wherein the controller assembly (6) controls the refrigeration system and the liquid cooling system to operate, and the power driving module (7) provides a power supply for the unit; the refrigeration system comprises a compressor (2), a condenser (3), a throttling device (4) and a plate heat exchanger (5) which are sequentially connected in series through a copper pipe (11), wherein a parallel refrigerant channel and a liquid cooling channel are arranged in the plate heat exchanger (5), and the refrigerant channel is connected in series to the refrigeration system; the liquid cooling system comprises a water pump (8) and a liquid cooling channel in the plate heat exchanger (5), wherein the water pump (8) and the liquid cooling channel are communicated through a liquid pipe (12), a liquid inlet (18) and a liquid outlet (19) are formed in the shell (1), and the liquid cooling system is connected with an external battery radiator through the liquid inlet (18) and the liquid outlet (19) to form a liquid cooling loop.

2. A self-contained battery thermal management unit according to claim 1, wherein a pressure switch (9) is further provided in the refrigeration system, the pressure switch (9) is provided on the copper tube (11), and the pressure switch (9) is in signal connection with the controller assembly (6) for feeding back pressure data in the copper tube (11) to the controller assembly (6).

3. The self-contained battery thermal management unit according to claim 1, wherein a condensing fan (10) is further mounted on the housing (1), the condensing fan (10) is arranged close to the condenser (3), and the condensing fan (10) is in signal connection with the controller assembly (6).

4. A self-contained battery thermal management assembly according to claim 3, characterized in that the housing (1) is internally provided with a first zone (a) and a second zone (B) arranged side by side, the condensing fan (10), the condenser (3), the power drive module (7) and the controller assembly (6) are mounted in the first zone (a) in layers, and the compressor (2), the throttling device (4), the plate heat exchanger (5) and the water pump (8) are integrated in the second zone (B).

5. A freestanding battery thermal management unit according to claim 4, wherein a plurality of thermal vents (13) are provided on the housing (1), said thermal vents (13) being provided at the sides of the first region (A).

6. A self-contained battery thermal management assembly according to claim 1, wherein the housing (1) is provided with a control input interface (14), and the control input interface (14) is in signal connection with the controller assembly (6).

7. The self-contained battery thermal management unit according to claim 1, characterized in that a power input interface (15) is arranged on the housing (1), and the power input interface (15) is in power supply connection with the power driving module (7).

8. A self-contained battery thermal management unit according to claim 1, wherein the compressor (2) is provided with a coolant inlet (16), the coolant inlet (16) extends through the housing (1), and the coolant inlet (16) is sealable.

9. A self-contained battery thermal management assembly according to claim 1, wherein a handle (17) is provided on the housing (1), the handle (17) being hinged to the housing (1), the handle (17) being reversible.