CN217031463U - Heat management system of power conversion station - Google Patents
Heat management system of power conversion station Download PDFInfo
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- CN217031463U CN217031463U CN202220785326.XU CN202220785326U CN217031463U CN 217031463 U CN217031463 U CN 217031463U CN 202220785326 U CN202220785326 U CN 202220785326U CN 217031463 U CN217031463 U CN 217031463U
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Abstract
The utility model provides a heat management system of a power conversion station, and relates to the technical field of heat management systems. The thermal management system can comprise a thermostat unit, a liquid circulation pipeline, a gas circulation pipeline and an auxiliary heating device, can perform thermal management on the battery pack and the station office at the same time, and integrates the thermal management systems of the battery pack and the station office together for convenient management. The gas circulation pipeline is also provided with the auxiliary heating device, so that the auxiliary heating device can assist the effect of heating the station room when the outdoor temperature is low, and the defect of low heating efficiency of the station room due to low temperature is overcome.
Description
Technical Field
The utility model relates to the technical field of thermal management systems, in particular to a thermal management system of a power conversion station.
Background
As a new energy supplementing mode for a new energy electric vehicle, the power station is gradually accepted by the market due to the convenience of more rapid power-up than oil filling. The battery changing station comprises a control room, a battery pack and a station rest room. These components are highly temperature sensitive, and both too high and too low temperatures can affect performance and life, as well as the comfort of the station staff. There is a need for reasonable temperature management of these components within the converter station.
At present, the mainstream power station heat management methods include the following: the battery is naturally cooled and is managed by matching with an industrial air conditioner, and the control room and the station rest room are managed by adopting a household air conditioner. 2, the battery adopts liquid cooling, and a set of independent constant-temperature water multi-steaming constant-temperature unit is needed. The control room, the station office rest room and the like adopt household air conditioners. In the scheme, the control of the station office and the battery pack is independently controlled, and the control of the station office and the battery pack cannot be uniformly managed.
SUMMERY OF THE UTILITY MODEL
An object of the first aspect of the present invention is to provide a heat management system for a power conversion station, which solves the problem in the prior art that the management of a battery pack of the power conversion station and people in a station service room is not centralized and cannot be managed uniformly.
Another object of the first aspect of the utility model is to solve the problem of poor heating effect in the station rooms of the prior art.
Particularly, the utility model provides a heat management system for a battery pack and a station service room in a battery changing station, wherein the heat management system comprises:
the constant temperature unit comprises a liquid outlet, a liquid inlet and an air outlet;
the liquid circulation pipeline is communicated with the liquid inlet and the liquid outlet and flows around the battery pack, and when the battery pack needs to be thermally managed, liquid flowing out of the liquid outlet flows through the liquid circulation pipeline, exchanges heat with the battery pack, and then flows back into the constant temperature unit through the liquid inlet;
the gas circulation pipeline is communicated with the air outlet and the station room, and when the station room needs heat management, air with a preset temperature flows out of the air outlet and enters the station room; and
and the auxiliary heating device is arranged at the gas circulation pipeline or the station service room.
Optionally, the auxiliary heat element comprises a heating wire laid within the gas flow conduit, the heating wire continuing from the air outlet to the station room location.
Optionally, each station room comprises an air inlet, and the gas circulation pipeline is connected with the air inlet to communicate with the station room;
the auxiliary heating device comprises heating wires which are laid on each station room and are positioned at the air inlet.
Optionally, a pressure relief device is further arranged in each station room to open to relieve pressure in the station room when the pressure in the station room is greater than a preset value.
Optionally, a fan is further disposed in each station office at the air inlet.
Optionally, the gas circulation pipeline includes a main pipeline and a plurality of branch pipelines with the same number as the station rooms, one end of each branch pipeline is communicated with the main pipeline, the other end of each branch pipeline is communicated with an air inlet of a corresponding station room, and a valve is arranged at each branch pipeline.
Optionally, an evaporator is arranged in the thermostatic unit and used for outputting cold air or hot air and refrigerating or heating the station service room.
Optionally, the number of the evaporators is multiple, and the evaporators are arranged in parallel.
Optionally, a heat exchanger is arranged in the thermostatic unit, and the heat exchanger is communicated with the liquid circulation pipeline through a pipeline to exchange heat with the liquid in the liquid circulation pipeline so as to control the temperature of the liquid flowing through the liquid circulation pipeline.
Optionally, a heat pump and a heating device are further arranged in the thermostatic unit, the heat pump and the heating device are connected in series with the liquid circulation pipeline through a pipeline, and the heat pump and the heating device and the heat exchanger selectively heat and refrigerate the battery pack.
The heat management system comprises a constant temperature unit, a liquid circulation pipeline, a gas circulation pipeline and an auxiliary heat device, and can be used for simultaneously performing heat management on the battery pack and the station office, and the heat management systems of the battery pack and the station office are integrated together for convenient management.
Furthermore, the gas circulation pipeline in the scheme is also provided with an auxiliary heating device, so that the effect of assisting the heating of the station service room by the auxiliary heating device can be realized when the outdoor temperature is lower, and the defect of low heating efficiency of the station service room due to low temperature is overcome.
Furthermore, a gas backflow air duct is not arranged between the gas circulation pipeline and the station office, the problem of overlarge pressure in the station office can be effectively avoided through the pressure relief device, meanwhile, the design of the backflow air duct is saved, and the occupied area and the cost are saved.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the utility model will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic block diagram of a thermal management system of a swapping station according to one embodiment of the present invention;
fig. 2 is a schematic structural view of the inside of a thermostat unit according to one embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic block diagram of a power swapping station thermal management system 100 according to an embodiment of the present invention. As a specific embodiment of the present invention, the power swapping station thermal management system 100 of this embodiment is used for performing thermal management on the battery pack 101 and the power swapping station service room 102 in the power swapping station. The thermal management system 100 may include a thermostat assembly 10, a liquid flow conduit 20, a gas flow conduit 30, and an auxiliary heat element 40. The thermostat assembly 10 may include a liquid outlet 11, a liquid inlet 12, and an air outlet 13. The liquid circulation pipeline 20 is communicated with the liquid inlet 12 and the liquid outlet 11 and flows around the battery pack 101, and when the battery pack 101 needs to be thermally managed, the liquid flowing out of the liquid outlet 11 flows through the liquid circulation pipeline 20 to exchange heat with the battery pack 101, and then flows back into the thermostatic unit 10 through the liquid inlet 12. The gas circulation duct 30 is in communication with the air outlet 13 and the station room 102, and when the station room 102 needs to be thermally managed, air with a preset temperature flows out from the air outlet 13 and enters the station room 102. The auxiliary heating device 40 is arranged at the gas passage duct 30 or at the station room 102.
The thermal management system 100 of the present embodiment may include a thermostat assembly 10, a liquid circulation duct 20, a gas circulation duct 30, and an auxiliary heat device 40, which may perform thermal management on the battery pack 101 and the station room 102 at the same time, and integrate the thermal management system 100 of the battery pack 101 and the station room 102 for management. In addition, the auxiliary heating device 40 is further arranged at the gas circulation pipeline 30 in the application, so that the effect of auxiliary heating for heat management in the station room 102 can be achieved by the auxiliary heating device 40 when the outdoor temperature is low, and the defect of low heat management efficiency of the station room 102 due to low temperature is overcome.
As a specific embodiment of the present invention, the auxiliary heating device 40 of the present embodiment may include a heating wire laid in the gas circulation pipe 30, and the heating wire continues from the air outlet 13 to the position of the station room 102.
The heating wires of the embodiment are directly arranged inside the gas circulation pipeline 30, so that the gas circulation pipeline 30 can be heated by the auxiliary heating device in the circulation process, and the heat management efficiency in the station room 102 can be further ensured.
As an embodiment of the present invention, each of the station rooms 102 of the present embodiment may include an air inlet 50, and the gas circulation duct 30 is connected to the air inlet 50 to communicate with the inside of the station room 102. The auxiliary heating device 40 includes heating wires laid out at the position of the air intake 50 in each station room 102.
In the embodiment, the heating wire is disposed at the position of the air inlet 50 of each station room 102, so that the usage amount of the heating wire can be saved, and the heating requirement inside the station room 102 can be ensured.
As a specific embodiment of the present invention, a pressure relief device 60 may be further disposed in each of the station rooms 102 to open to relieve pressure in the station room 102 when the pressure in the station room 102 is greater than a predetermined value.
In this embodiment, since no gas return duct is disposed between the gas circulation pipeline 30 and the station room 102, the pressure relief device 60 can effectively avoid the problem of excessive pressure in the station room 102, and simultaneously, the design of the return duct is saved, and the floor space and the cost are saved.
As a specific embodiment of the present invention, a fan 70 is further disposed in each of the station rooms 102 at the position of the air inlet 50. The fan 70 of this embodiment can further and rapidly input warm air or cool air flowing into the station room 102 from the air flow duct 30 into the station room 102 through the fan 70, thereby increasing the heating or cooling speed of the station room 102.
As a specific embodiment of the present invention, the gas circulation pipeline 30 of the present embodiment may include a main pipeline 31 and a plurality of branch pipelines 32 with the same number as that of the station rooms 102, one end of each branch pipeline 32 is communicated with the main pipeline 31, the other end is communicated with the air inlet 50 of a corresponding station room 102, and a valve 33 is disposed at each branch pipeline 32.
In this embodiment, the valves 33 at the branch pipes 32 are all solenoid valves. The valve 33 corresponding to the station room 102 needing cooling or heating can be opened, and the valves 33 corresponding to other station rooms 102 can be closed, so that the control is flexible, and resources can be saved.
Fig. 2 is a schematic structural view of the inside of a thermostat unit according to one embodiment of the present invention. As a specific embodiment of the present invention, an evaporator 17 is disposed in the thermostatic unit 10 of this embodiment, and is used for outputting cold air or hot air and cooling or heating the station room 102. The evaporator 17 of this embodiment may be a plurality of evaporators 17 connected in parallel, and the evaporators 17 may provide cold air or hot air for cooling or heating in the station room 102.
As a specific embodiment of the present invention, a heat exchanger 14 is provided in the thermostatic unit 10 of the present embodiment, and the heat exchanger 14 is communicated with the liquid circulation duct 20 through a duct to perform heat exchange with the liquid in the liquid circulation duct 20 so as to control the temperature of the liquid flowing through the liquid circulation duct 20.
As a specific embodiment of the present invention, a heat pump 15 and a heating device 16 are further disposed in the thermostatic unit 10 of this embodiment, the heat pump 15 and the heating device 16 are connected in series with the liquid circulation pipe 20 through a pipe, and are selectively connected with the heat exchanger 14 to heat and cool the battery pack 101.
Specifically, when refrigeration is required, the heat exchanger 14 provides a cold source for constant heat exchange in the liquid flow conduit 20 to maintain the liquid in the liquid flow conduit 20 at a relatively low temperature. When heating is required, the heat pump 15 and the heating device 16 provide a heat source to ensure that the liquid in the liquid circulation pipeline 20 is kept in a high temperature state.
Specifically, the liquid flowing pipe 20 may be divided into a plurality of branch pipes 21, and an electromagnetic valve 22 may be further provided at each branch pipe 21 to be controlled to be opened and closed, so that the individual battery packs 101 may be selectively cooled or heated.
Specifically, the working principle of the thermal management system 100 of the present embodiment is as follows:
when the battery pack 101 and the station room 102 need to be refrigerated under the high-temperature working condition, the refrigeration principle of the battery pack 101 is as follows: the thermostat unit 10 can output low-temperature coolant, and the low-temperature coolant is input into the battery pack 101 through a liquid cooling pipeline to cool the battery pack 101 at a high temperature. The cooling liquid is then fed back into the thermostatic unit 10 through a liquid cooling pipe and exchanges heat with a heat exchanger 14 inside the thermostatic unit 10. The electromagnetic valve 22 at the branch pipe 21 of the liquid circulation pipeline 20 can be directionally controlled to be switched on and off according to the requirement of the battery pack 101, so that refrigeration for the battery pack 101 is realized. Station room 102 refrigeration principle: the thermostat unit 10 outputs cold air by using the evaporator 17, and the cold air is directionally input into a station room 102 (a control cabin, a rest cabin, a charging cabin and the like) with refrigeration requirements through an air circulation pipeline 30 connected with an air outlet 13 to refrigerate the station room. Meanwhile, the start and stop of the fans 70 in each bin can be controlled through the temperature sensors, so that the ventilation of the required bins is realized, the closing of the bins is not required, and the energy consumption is reduced. Because the station rooms 102 are not provided with return air ducts, if the pressure of each station room 102 exceeds the limit, the pressure relief device 60 can be automatically opened to exhaust and relieve pressure. The pressure can be automatically closed after reaching a normal range.
When the battery pack 101 and the station service room 102 need to be refrigerated under the high-temperature working condition, the heating principle of the battery pack 101 is as follows: the thermostatic unit 10 can output high-temperature water through the heat pump 15 and the heating device 16, hot water is input to the battery pack 101 through the unit liquid outlet 11 through the liquid circulation pipeline 20, exchanges heat with the battery pack 101, and then flows back to the thermostatic unit 10 through the liquid circulation pipeline 20. The liquid is then reheated and recycled. Heating of the battery pack 101 is realized. The battery valve at the branch of the liquid flowing pipeline 20 can be controlled to be switched on or off according to the requirement of the battery pack 101.
The heating principle of each bin is as follows: at the air outlet 13 of the thermostatic unit 10, the thermostatic unit 10 can output hot air at the parallel evaporator 17 by using the principle of the heat pump 15, and then directionally input the hot air into a station room 102 (a control cabin, a rest cabin, a charging cabin and the like) with heating requirements through the gas circulation pipeline 30 to heat the station room. The auxiliary heating device 40 is arranged in the gas circulation pipeline 30, so that the defect caused by insufficient heating of the heat pump 15 at low temperature can be overcome. Meanwhile, the start and stop of each cabin fan 70 can be controlled through temperature sensing, air supply to the station rooms 102 in need is realized, the station rooms 102 in need are not sealed, and energy consumption is reduced. Because the station rooms 102 are not provided with return air ducts, if the pressure in each station room 102 exceeds the limit, the pressure relief device 60 can be automatically opened to release air and relieve pressure, and the pressure can be automatically closed after reaching the normal range.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the utility model may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the utility model. Accordingly, the scope of the utility model should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A trade power station thermal management system for trade battery package and trade power station service room in the power station and carry out the thermal management, its characterized in that, thermal management system includes:
the constant temperature unit comprises a liquid outlet, a liquid inlet and an air outlet;
the liquid circulation pipeline is communicated with the liquid inlet and the liquid outlet and flows around the battery pack, and when the battery pack needs to be thermally managed, liquid flowing out of the liquid outlet flows through the liquid circulation pipeline to exchange heat with the battery pack and then flows back into the constant temperature unit through the liquid inlet;
the gas circulation pipeline is communicated with the air outlet and the station room, and when the station room needs heat management, air with a preset temperature flows out of the air outlet and enters the station room; and
and the auxiliary heating device is arranged at the gas circulation pipeline or the station service room.
2. The swapping station thermal management system of claim 1,
the auxiliary heating element comprises a heating wire laid in the gas circulation pipeline, and the heating wire is continued from the air outlet to the station service room position.
3. The swapping station thermal management system of claim 1,
each station room comprises an air inlet, and the gas circulation pipeline is connected with the air inlet to be communicated with the station rooms;
the auxiliary heating device comprises heating wires which are laid on each station room and are positioned at the air inlet.
4. The swapping station thermal management system of claim 3,
and each station room is also internally provided with a pressure relief device to open when the pressure in the station room is greater than a preset value so as to relieve the pressure in the station room.
5. The swapping station thermal management system of claim 4,
and a fan is also arranged at the position of the air inlet in each station office.
6. The swapping station thermal management system of any of claims 3-5,
the gas circulation pipeline comprises a main pipeline and a plurality of branch pipelines with the same number as the station rooms, one end of each branch pipeline is communicated with the main pipeline, the other end of each branch pipeline is communicated with the air inlet of the corresponding station room, and a valve is arranged at each branch pipeline.
7. The swapping station thermal management system of any of claims 1-5,
and an evaporator is arranged in the constant temperature unit and is used for outputting cold air or hot air and refrigerating or heating the station service room.
8. The swapping station thermal management system of claim 7,
the number of the evaporators is multiple and the evaporators are arranged in parallel.
9. The charging station thermal management system according to any one of claims 1-5,
and a heat exchanger is arranged in the constant temperature unit and is communicated with the liquid circulation pipeline through a pipeline so as to exchange heat with the liquid in the liquid circulation pipeline to control the temperature of the liquid flowing through the liquid circulation pipeline.
10. The swapping station thermal management system of claim 9,
the constant temperature unit is also internally provided with a heat pump and a heating device, the heat pump and the heating device are connected with the liquid circulation pipeline in series through pipelines, and the heat pump and the heating device and the heat exchanger selectively heat and refrigerate the battery pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220785326.XU CN217031463U (en) | 2022-04-02 | 2022-04-02 | Heat management system of power conversion station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220785326.XU CN217031463U (en) | 2022-04-02 | 2022-04-02 | Heat management system of power conversion station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217031463U true CN217031463U (en) | 2022-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220785326.XU Active CN217031463U (en) | 2022-04-02 | 2022-04-02 | Heat management system of power conversion station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217031463U (en) |
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2022
- 2022-04-02 CN CN202220785326.XU patent/CN217031463U/en active Active
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