CN209893673U - Sectional type control device of direct current frequency converter set - Google Patents
Sectional type control device of direct current frequency converter set Download PDFInfo
- Publication number
- CN209893673U CN209893673U CN201920404226.6U CN201920404226U CN209893673U CN 209893673 U CN209893673 U CN 209893673U CN 201920404226 U CN201920404226 U CN 201920404226U CN 209893673 U CN209893673 U CN 209893673U
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- CN
- China
- Prior art keywords
- frequency converter
- heat exchanger
- direct current
- control device
- current frequency
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- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Other Air-Conditioning Systems (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The utility model relates to the technical field of a flow control device of a cold and hot unit, and provides a sectional type control device of a direct current frequency converter unit, which comprises a compressor, wherein the compressor is respectively connected with an indoor heat exchanger and an outdoor heat exchanger through a reversing valve; an electronic expansion valve is connected between the indoor heat exchanger and the outdoor heat exchanger; the electronic expansion valve is connected with a frequency converter, and the frequency converter is connected with the control unit; the control unit is also connected with a temperature sensor for measuring the outdoor temperature. Therefore, the electronic expansion valve is connected between the indoor heat exchanger and the outdoor heat exchanger; the electronic expansion valve is connected with the control unit through a frequency converter; meanwhile, a temperature sensor for measuring the outdoor temperature is arranged, and the output frequency of the frequency converter is changed according to the outdoor temperature, so that the opening degree of the electronic expansion valve is controlled. Therefore, the opening of the electronic expansion valve is controlled in a segmented mode according to the environment temperature, and the adaptability of the unit is improved.
Description
Technical Field
The utility model relates to a cold and hot unit flow control device technical field especially relates to a direct current frequency converter unit sectional type controlling means.
Background
With the increase of extreme weather in recent years, the cooling and heating unit often can not work normally when facing extremely cold or extremely hot working condition. Greatly reducing the use efficiency and the practicability of the unit.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned drawbacks, an object of the present invention is to provide a sectional control device for a dc frequency converter set, which further comprises an electronic expansion valve connected between an indoor heat exchanger and an outdoor heat exchanger; the electronic expansion valve is connected with the control unit through a frequency converter; meanwhile, a temperature sensor for measuring the outdoor temperature is arranged, and the output frequency of the frequency converter is changed according to the outdoor temperature, so that the opening degree of the electronic expansion valve is controlled. Therefore, the opening of the electronic expansion valve is controlled in a segmented mode according to the environment temperature, and the adaptability of the unit is improved.
In order to achieve the purpose, the utility model provides a sectional type control device of a direct current frequency converter unit, which comprises a compressor, wherein the compressor is respectively connected with an indoor heat exchanger and an outdoor heat exchanger through a reversing valve; an electronic expansion valve is connected between the indoor heat exchanger and the outdoor heat exchanger; the electronic expansion valve is connected with a frequency converter, and the frequency converter is connected with the control unit; the control unit is also connected with a temperature sensor for measuring the outdoor temperature.
According to the utility model discloses a direct current frequency conversion unit sectional type controlling means, the switching-over valve is the four-way switching-over valve.
According to the utility model discloses a direct current frequency converter unit sectional type controlling means, indoor heat exchanger is the air-cooled heat exchanger.
According to the utility model discloses a direct current frequency conversion unit sectional type controlling means, outdoor heat exchanger is water-cooled heat exchanger.
According to the utility model discloses a direct current frequency conversion unit sectional type controlling means, water cooled heat exchanger's water route exit still is equipped with water route switch and water pump.
According to the utility model discloses a direct current frequency conversion unit sectional type controlling means, water route switch is automatically controlled water route switch.
According to the utility model discloses a direct current frequency conversion unit sectional type controlling means, water route switch and water pump are connected respectively the control unit.
According to the utility model discloses a direct current frequency conversion unit sectional type controlling means, the water pump passes through converter connection control unit.
According to the utility model discloses a direct current frequency converter unit sectional type controlling means, circulating water among the water-cooled heat exchanger adopts the heating of outside heat source.
According to the utility model discloses a direct current frequency conversion unit sectional type controlling means, the outside heat source is groundwater, wind energy, solar energy or bioenergy.
The utility model aims to provide a sectional control device of a direct current frequency converter set, which is characterized in that an electronic expansion valve is connected between an indoor heat exchanger and an outdoor heat exchanger; the electronic expansion valve is connected with the control unit through a frequency converter; meanwhile, a temperature sensor for measuring the outdoor temperature is arranged, and the output frequency of the frequency converter is changed according to the outdoor temperature, so that the opening degree of the electronic expansion valve is controlled. Therefore, the opening of the electronic expansion valve is controlled in a segmented mode according to the environment temperature, and the adaptability of the unit is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the figure, 1-indoor heat exchanger, 2-compressor, 21-reversing valve; 3-outdoor heat exchanger, 31-waterway switch, 32-water pump; 4-control unit, 41-frequency converter, 42-temperature sensor; 5-expansion valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The above-mentioned directions or positions of the upper, lower, left, right, etc. are referred to in this specification for better describing the technical solution in conjunction with the drawings, so that the reader can understand that the practical implementation includes but is not limited to this description.
Referring to fig. 1, the utility model provides a sectional type control device of a direct current frequency converter set, which comprises a compressor 2, wherein the compressor 2 is respectively connected with an indoor heat exchanger 1 and an outdoor heat exchanger 3 through a reversing valve 21; an expansion valve 5 is also connected between the indoor heat exchanger 1 and the outdoor heat exchanger 3; preferably, the reversing valve 21 is a four-way reversing valve, so that the flow direction of the refrigerant can be conveniently switched according to the working conditions in winter and summer.
The expansion valve 5 is an electronic expansion valve; the electronic expansion valve is connected with a frequency converter 41, and the frequency converter 41 is connected with the control unit 4; the control unit 4 is also connected to a temperature sensor 42 for measuring the outdoor temperature; the output frequency of the frequency converter 41 is changed according to the outdoor temperature, and the opening degree of the electronic expansion valve is controlled. Therefore, the opening of the electronic expansion valve is controlled in a segmented mode according to the environment temperature, and the adaptability of the unit is improved.
Preferably, the indoor heat exchanger 1 is an air-cooled heat exchanger. Used for conveying cold air or hot air to the room.
Preferably, the outdoor heat exchanger 3 is a water-cooled heat exchanger. Preferably, the circulating water in the water-cooling heat exchanger is heated by an external heat source; the external heat source can be underground water, and can also be wind energy, solar energy or biological energy. Preferably, a waterway switch 31 and a water pump 32 are further arranged at the waterway outlet of the water-cooling heat exchanger. The waterway switch 31 may be a manual control switch or an electric control waterway switch. Preferably, the electric control waterway switch and the water pump 32 are respectively connected to the control unit 4 in order to control the amount of circulating water according to the outdoor temperature. Further, the water pump 32 is connected to the control unit 4 through an inverter 41.
In summary, the present invention is directed to a sectional control device for a dc frequency converter set, which further includes an electronic expansion valve connected between an indoor heat exchanger and an outdoor heat exchanger; the electronic expansion valve is connected with the control unit through a frequency converter; meanwhile, a temperature sensor for measuring the outdoor temperature is arranged, and the output frequency of the frequency converter is changed according to the outdoor temperature, so that the opening degree of the electronic expansion valve is controlled. Therefore, the opening of the electronic expansion valve is controlled in a segmented mode according to the environment temperature, and the adaptability of the unit is improved.
Naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered as within the scope of the appended claims.
Claims (10)
1. The sectional type control device of the direct current frequency converter set is characterized by comprising a compressor, wherein the compressor is respectively connected with an indoor heat exchanger and an outdoor heat exchanger through reversing valves; an electronic expansion valve is connected between the indoor heat exchanger and the outdoor heat exchanger; the electronic expansion valve is connected with a frequency converter, and the frequency converter is connected with the control unit; the control unit is also connected with a temperature sensor for measuring the outdoor temperature.
2. The sectional type control device of the direct current frequency converter set according to claim 1, wherein the reversing valve is a four-way reversing valve.
3. The sectional type control device of the direct current frequency converter set according to claim 1, wherein the indoor heat exchanger is an air-cooled heat exchanger.
4. The sectional control device for the direct current frequency converter set according to any one of claims 1 to 3, wherein the outdoor heat exchanger is a water-cooled heat exchanger.
5. The sectional type control device for the direct current frequency converter set according to claim 4, wherein a waterway switch and a water pump are further arranged at a waterway outlet of the water-cooled heat exchanger.
6. The sectional type control device of the direct current frequency converter set according to claim 5, wherein the waterway switch is an electrically controlled waterway switch.
7. The sectional type control device of the direct current frequency converter set according to claim 6, wherein the waterway switch and the water pump are respectively connected with the control unit.
8. The sectional type control device of the direct current frequency converter set according to claim 7, wherein the water pump is connected with the control unit through a frequency converter.
9. The sectional control device of the direct current frequency converter set according to any one of claims 5 to 8, wherein circulating water in the water-cooled heat exchanger is heated by an external heat source.
10. The segmented control device of the direct current frequency converter set according to claim 9, wherein the external heat source is underground water, wind energy, solar energy or biological energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920404226.6U CN209893673U (en) | 2019-03-28 | 2019-03-28 | Sectional type control device of direct current frequency converter set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920404226.6U CN209893673U (en) | 2019-03-28 | 2019-03-28 | Sectional type control device of direct current frequency converter set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209893673U true CN209893673U (en) | 2020-01-03 |
Family
ID=68998094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920404226.6U Expired - Fee Related CN209893673U (en) | 2019-03-28 | 2019-03-28 | Sectional type control device of direct current frequency converter set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209893673U (en) |
-
2019
- 2019-03-28 CN CN201920404226.6U patent/CN209893673U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200103 |