CN217929048U - Air conditioning unit for controlling temperature of energy storage device - Google Patents
Air conditioning unit for controlling temperature of energy storage device Download PDFInfo
- Publication number
- CN217929048U CN217929048U CN202222089832.8U CN202222089832U CN217929048U CN 217929048 U CN217929048 U CN 217929048U CN 202222089832 U CN202222089832 U CN 202222089832U CN 217929048 U CN217929048 U CN 217929048U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- expansion valve
- temperature
- air conditioning
- energy storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Other Air-Conditioning Systems (AREA)
Abstract
The utility model relates to the technical field of air conditioners, in particular to an air conditioning unit for controlling the temperature of an energy storage device, which comprises a master controller, a compressor, a fluorine pump, a four-way valve, a liquid storage tank, a gas-liquid separator, a first heat exchanger, a second heat exchanger, a first expansion valve, a second expansion valve, a solenoid valve and a plurality of temperature sensors; the compressor, the fluorine pump, the first expansion valve, the second expansion valve, the electromagnetic valve and the plurality of temperature sensors are all in signal connection with the master controller, the second heat exchanger is used for being connected with an external energy storage device, and the plurality of temperature sensors are respectively used for detecting the outdoor temperature, the refrigerating fluid outlet of the second heat exchanger and the temperature of the refrigerating fluid inlet. The utility model provides a pair of for air conditioning unit of energy memory accuse temperature can stably provide cold source and heat source and carry out the heat transfer for energy memory to adapt to energy memory's multiple job scene and operating condition.
Description
Technical Field
The utility model belongs to the technical field of the air conditioning technology and specifically relates to indicate an air conditioning unit for energy memory accuse temperature.
Background
Among various energy storage technologies, lithium ion batteries are becoming a good choice for industrial and vehicular energy storage devices due to their high energy density characteristics and high commercialization prospects. However, as the capacity and the power of the energy storage battery system gradually increase, the heat generation amount thereof also increases, thereby causing the energy storage battery system to have large temperature rise and high temperature in the working process. Because the comprehensive performance of the lithium ion battery is sensitive to the working temperature, the power performance of the battery can be reduced when the battery works at high temperature for a long time, the aging of the battery is accelerated, and the cycle life of an energy storage system is influenced. At present, the common cooling mode of the energy storage system is mainly a natural cooling mode or a forced air cooling mode or a single water cooling mode, and under different temperature conditions, the cooling mode can not be flexibly adjusted, and the energy-saving and reliable standby mode in the energy storage system can not be met.
Disclosure of Invention
The utility model discloses problem to prior art provides an air conditioning unit for energy memory accuse temperature, can stably provide cold source and heat source and carry out the heat transfer for energy memory to adapt to energy memory's multiple job scene and operating condition.
In order to solve the technical problem, the utility model discloses a following technical scheme: an air conditioning unit for controlling the temperature of an energy storage device comprises a master controller, a compressor, a fluorine pump, a liquid storage tank, a gas-liquid separator, a first heat exchanger, a second heat exchanger, a first expansion valve, a second expansion valve, an electromagnetic valve and a plurality of temperature sensors; the compressor, the fluorine pump, the first expansion valve, the second expansion valve, the electromagnetic valve and the temperature sensors are in signal connection with the master controller, the second heat exchanger is used for being connected with an external energy storage device, and the temperature sensors are respectively used for detecting the outdoor temperature and the temperatures of a refrigerating fluid outlet and a refrigerating fluid inlet of the second heat exchanger; the fluorine pump is connected with the compressor in parallel, the first expansion valve is arranged between the second heat exchanger and the liquid storage tank, and the second expansion valve is arranged between the first heat exchanger and the liquid storage tank; an outlet of the second heat exchanger is communicated with an inlet of the first heat exchanger, and an outlet of the first heat exchanger is communicated with an inlet of the second heat exchanger through an electromagnetic valve.
Preferably, the first expansion valve is a refrigeration electronic expansion valve.
Preferably, the first expansion valve is connected in parallel with a fifth check valve.
Preferably, the second expansion valve is a heating electronic expansion valve.
Preferably, the second expansion valve is connected in parallel with a fourth check valve.
Preferably, the compressor is connected in parallel with the first filter.
Preferably, a second filter is arranged between the liquid storage tank and the first expansion valve.
Preferably, the first heat exchanger is a fin heat exchanger, and the second heat exchanger is a plate heat exchanger.
The utility model has the advantages that:
the utility model provides a pair of give air conditioning unit of energy memory accuse temperature can carry out the mode switch according to different freezing liquid temperatures and ambient temperature, when having avoided the low-load promptly, the frequent opening of compressor stops, improves the compressor life-span, has also guaranteed the stability of liquid supply temperature. Through changeable multiple mode, realized the cold of mode and possessed and energy-conserving effect, when avoiding appearing single trouble, energy memory can not use, reliability greatly increased.
Drawings
Fig. 1 is a schematic view of a structural block of the present invention;
fig. 2 is a schematic structural block diagram of mode one according to the present invention;
fig. 3 is a schematic structural block diagram of a second mode of the present invention;
fig. 4 is a schematic structural block diagram of a third mode of the present invention;
fig. 5 is a schematic block diagram of a structure of a mode four of the present invention.
The reference numerals in fig. 1 to 5 include:
the device comprises a compressor 1, a fluorine pump 2, a liquid storage tank 3, a gas-liquid separator 4, a first heat exchanger 5, a second heat exchanger 6, a first expansion valve 7, a second expansion valve 8, a solenoid valve 9, a temperature sensor 10, a fifth one-way valve 11, a fourth one-way valve 12, a first filter 13, a second filter 14 and a four-way valve 15.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.
In this embodiment, as shown in fig. 1, the system includes a master controller, a compressor 1, a fluorine pump 2, a liquid storage tank 3, a gas-liquid separator 4, a first heat exchanger 5, a second heat exchanger 6, a first expansion valve 7, a second expansion valve 8, a solenoid valve 9, and a plurality of temperature sensors 10; the compressor 1, the fluorine pump 2, the first expansion valve 7, the second expansion valve 8, the electromagnetic valve 9 and the plurality of temperature sensors 10 are in signal connection with a master controller, the first heat exchanger 5 and the second heat exchanger 6 are also in signal connection with the master controller, the second heat exchanger 6 is used for being connected with an external energy storage device, and the plurality of temperature sensors 10 are respectively used for detecting the outdoor temperature, the temperature of a refrigerating fluid outlet and the temperature of a refrigerating fluid inlet of the second heat exchanger 6; the master controller is a conventional controller such as a single chip microcomputer, which is not shown in the drawing. The fluorine pump 2 is connected with the compressor 1 in parallel, the first expansion valve 7 is arranged between the second heat exchanger 6 and the liquid storage tank 3, and the second expansion valve 8 is arranged between the first heat exchanger 5 and the liquid storage tank 3; an outlet of the second heat exchanger 6 is communicated with an inlet of the first heat exchanger 5, and an outlet of the first heat exchanger 5 is communicated with an inlet of the second heat exchanger 6 through a solenoid valve 9.
The compressor 1, the fluorine pump 2, the liquid storage tank 3, the gas-liquid separator 4, the first heat exchanger 5, the second heat exchanger 6, the first expansion valve 7, the second expansion valve 8, the solenoid valve 9 and the plurality of temperature sensors 10 are specifically connected as shown in fig. 1, the second heat exchanger 6 is provided with a refrigerating fluid inlet and a refrigerating fluid outlet, the refrigerating fluid inlet and the refrigerating fluid outlet are respectively connected with the energy storage device, and the temperature sensors 10 are respectively installed on the refrigerating fluid inlet and the refrigerating fluid outlet.
Optionally, the first heat exchanger 5 of this embodiment is a fin heat exchanger, and the second heat exchanger 6 is a plate heat exchanger. Furthermore, the first expansion valve 7 is a refrigeration electronic expansion valve, the second expansion valve 8 is a heating electronic expansion valve, the first expansion valve 7 is connected in parallel with a fifth check valve 11, and the second expansion valve 8 is connected in parallel with a fourth check valve 12.
Furthermore, as shown in fig. 1, the compressor 1 is connected in parallel with a first filter 13, a second filter 14 is installed between the receiver 3 and the first expansion valve 7, and during the heat exchange of the refrigerant fluid circulation, the refrigerant fluid is filtered by the first filter 13 and the second filter 14, so as to keep the refrigeration cycle clean.
After the cooling liquid channel is formed by connecting the two embodiments, the cooling mode of the energy storage device is controlled by the main controller and the plurality of temperature sensors 10, which includes the following modes:
the first mode is as follows: as shown in fig. 2, when the outdoor temperature sensor 10 detects that the outdoor ambient temperature TH8 is greater than 15 ℃, the master controller starts the compressor 1 to enter a refrigeration mode, controls the inlet temperature of the refrigerating fluid to be 25 ℃, the outlet temperature of the refrigerating fluid to be 22 ℃, in this mode, the fin heat exchanger is a condenser, the plate heat exchanger is an evaporator, and the specific circulation flow path is as follows: the compressor 1, the four-way valve 15, the finned heat exchanger, the liquid storage tank 3 and the plate heat exchanger are sequentially connected, at the moment, the electromagnetic valve 9EXV3 is closed, the second expansion valve 8 is closed, and the first expansion valve 7 is opened;
and a second mode: as shown in fig. 3, when the outdoor ambient temperature is greater than or equal to-5 ℃ and less than or equal to TH8 and less than or equal to 15 ℃, the master controller closes the refrigeration mode of the compressor 1, starts the fluorine pump 2, adjusts the flow rate of the pump, controls the inlet temperature of the refrigerating fluid to be 25 ℃ and the outlet temperature of the refrigerating fluid to be 22 ℃, and at this time, the electromagnetic valve 9EXV3 is closed, the second expansion valve 8 is closed, and the first expansion valve 7 is opened. When the temperature requirement of the mode two cannot be met, the mode two is closed, and the mode one is switched;
and a third mode: as shown in fig. 4, when the outdoor ambient temperature TH8 is less than-5 ℃, the fluorine pump 2 is turned off, the natural cold gravity heat pipe mode is performed, at this time, the electromagnetic valve 9EXV3 is opened, the first expansion valve 7, i.e., the refrigeration electronic expansion valve EXV1, and the second expansion valve 8, i.e., the heating electronic expansion valve EXV2, are closed, the four-way valve 15 is energized to start circulation, the four-way valve 15 of this embodiment is the prior art, and the energized and de-energized working states are the prior art, which are not described herein again. When the temperature requirement cannot be met, the mode III is closed and switched to the mode II;
and a fourth mode: as shown in fig. 5, in the case of a low ring temperature, when the battery pack needs to be heated in a non-charging state, the mode is switched to a low-temperature preheating mode to circulate and heat the refrigerant oil. At this time, the fin heat exchanger is an evaporator, the plate heat exchanger is a condenser, and the circulating flow channel is as follows: the compressor 1, the four-way valve 15, the plate heat exchanger, the liquid storage tank 3 and the fin heat exchanger are closed, the electromagnetic valve 9EXV3 is closed, the second expansion valve 8 is closed, and the first expansion valve 7 is opened.
In this embodiment, as shown in the figure, can carry out the mode switch according to different freezing liquid temperatures and ambient temperature for energy memory work is at the suitable temperature, when having avoided the low-load promptly, and frequent opening of compressor 1 stops, can improve compressor 1 life-span, has also guaranteed the stability of confession liquid temperature. Through changeable multiple mode, realized the cold of mode and be equipped with and energy-conserving effect, when avoiding appearing single trouble, energy memory can not use, reliability greatly increased.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention is disclosed in the above description in terms of preferred embodiments, it is not intended to limit the present invention, and any person skilled in the art will be able to make any changes or modifications to equivalent embodiments without departing from the scope of the present invention, and all the technical solutions of the present invention are within the scope of the present invention.
Claims (8)
1. The utility model provides an air conditioning unit for energy memory accuse temperature which characterized in that: the system comprises a master controller, a compressor, a fluorine pump, a four-way valve, a liquid storage tank, a gas-liquid separator, a first heat exchanger, a second heat exchanger, a first expansion valve, a second expansion valve, an electromagnetic valve and a plurality of temperature sensors;
the compressor, the fluorine pump, the first expansion valve, the second expansion valve, the electromagnetic valve and the temperature sensors are in signal connection with the master controller, the second heat exchanger is used for being connected with an external energy storage device, and the temperature sensors are respectively used for detecting the outdoor temperature and the temperatures of a refrigerating fluid outlet and a refrigerating fluid inlet of the second heat exchanger;
the fluorine pump is connected with the compressor in parallel, the first expansion valve is arranged between the second heat exchanger and the liquid storage tank, and the second expansion valve is arranged between the first heat exchanger and the liquid storage tank;
an outlet of the second heat exchanger is communicated with an inlet of the first heat exchanger, and an outlet of the first heat exchanger is communicated with an inlet of the second heat exchanger through an electromagnetic valve.
2. The air conditioning unit for controlling the temperature of an energy storage device according to claim 1, wherein: the first expansion valve is a refrigeration electronic expansion valve.
3. The air conditioning unit for controlling the temperature of the energy storage device according to claim 1, wherein: and the first expansion valve is connected with a fifth one-way valve in parallel.
4. The air conditioning unit for controlling the temperature of an energy storage device according to claim 1, wherein: the second expansion valve is a heating electronic expansion valve.
5. The air conditioning unit for controlling the temperature of an energy storage device according to claim 1, wherein: and the second expansion valve is connected with a fourth one-way valve in parallel.
6. The air conditioning unit for controlling the temperature of an energy storage device according to claim 1, wherein: the compressor is connected in parallel with a first filter.
7. The air conditioning unit for controlling the temperature of an energy storage device according to claim 1, wherein: and a second filter is arranged between the liquid storage tank and the first expansion valve.
8. The air conditioning unit for controlling the temperature of an energy storage device according to claim 1, wherein: the first heat exchanger is a fin heat exchanger, and the second heat exchanger is a plate heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222089832.8U CN217929048U (en) | 2022-08-08 | 2022-08-08 | Air conditioning unit for controlling temperature of energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222089832.8U CN217929048U (en) | 2022-08-08 | 2022-08-08 | Air conditioning unit for controlling temperature of energy storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217929048U true CN217929048U (en) | 2022-11-29 |
Family
ID=84155324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222089832.8U Active CN217929048U (en) | 2022-08-08 | 2022-08-08 | Air conditioning unit for controlling temperature of energy storage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217929048U (en) |
-
2022
- 2022-08-08 CN CN202222089832.8U patent/CN217929048U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113071376A (en) | Vehicle fuel cell thermal management system and control method thereof | |
| CN111637659A (en) | High-energy-efficiency heat pump air conditioning system and control method thereof | |
| CN203163327U (en) | Air conditioning system | |
| CN108253643B (en) | Instant-heating heat-storage heat pump and solar energy coupling hot water system and control method | |
| CN112611140A (en) | Temperature control device and method | |
| CN111993884A (en) | Hybrid vehicle thermal management system and hybrid vehicle thermal management method | |
| CN201527134U (en) | Total heat recovery refrigerating system for air conditioning device | |
| CN104613667A (en) | Combined air-conditioning system as well as control method thereof | |
| CN203671820U (en) | Air source integrated central air conditioner | |
| CN219696549U (en) | Novel thermal management unit of wind power energy storage battery | |
| CN217929048U (en) | Air conditioning unit for controlling temperature of energy storage device | |
| CN211926186U (en) | Air conditioning system | |
| CN203011003U (en) | Air source heat pump hot water air conditioning unit | |
| CN220774494U (en) | Battery thermal management system suitable for commercial car | |
| CN210970743U (en) | Battery cooling system of electric automobile | |
| CN216872096U (en) | Heat pump type battery thermal management system with motor electric control heat dissipation function | |
| CN220083361U (en) | Air conditioning system | |
| CN221233420U (en) | Solar energy hetero-aggregation plate heat pump air conditioning system for bus | |
| CN219203283U (en) | Battery thermal management system with fluorine pump device | |
| CN219656410U (en) | Composite refrigerating system | |
| CN219868389U (en) | Energy-saving two-stage pump air conditioning system | |
| CN109838855A (en) | Air source heat pump hot-water air-conditioning unit | |
| CN216814354U (en) | Air conditioner with soft air outlet and energy-saving air conditioning system | |
| CN219829011U (en) | Heat pump system with multiple heat exchangers | |
| CN217848101U (en) | Automatic cooling system of liquid cooling energy storage equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |