CN109631183B - Heat pump assistant - Google Patents

Heat pump assistant Download PDF

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Publication number
CN109631183B
CN109631183B CN201811512457.5A CN201811512457A CN109631183B CN 109631183 B CN109631183 B CN 109631183B CN 201811512457 A CN201811512457 A CN 201811512457A CN 109631183 B CN109631183 B CN 109631183B
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CN
China
Prior art keywords
heat pump
machine device
water
water pipe
control module
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
Application number
CN201811512457.5A
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Chinese (zh)
Other versions
CN109631183A (en
Inventor
闫旭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Huihe Construction Technology Co ltd
Original Assignee
Nanjing Huihe Construction Technology Co ltd
Priority date (The priority date 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 date listed.)
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Publication date
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Priority to CN201811512457.5A priority Critical patent/CN109631183B/en
Publication of CN109631183A publication Critical patent/CN109631183A/en
Application granted granted Critical
Publication of CN109631183B publication Critical patent/CN109631183B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/60Arrangement or mounting of the outdoor unit
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41Defrosting; Preventing freezing
    • F24F11/42Defrosting; Preventing freezing of outdoor units
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56Remote control
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/89Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20Casings or covers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/32Supports for air-conditioning, air-humidification or ventilation units
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00Heat pumps
    • F25B30/06Heat pumps characterised by the source of low potential heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20Casings or covers
    • F24F2013/207Casings or covers with control knobs; Mounting controlling members or control units therein

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

The invention discloses a heat pump assistant, which comprises an inner machine device and an outer machine device fixed on a heat pump shell, wherein the outer machine device is connected with the inner machine device through a pipeline, and a water pipe, a spray head, a first temperature sensor, a second temperature sensor and an electric heat tracing band of the outer machine device are arranged on the outer machine device; the internal machine device comprises a power supply module, a communication control module, a water inlet interface, a pressure reducing valve, an electromagnetic valve and a water outlet interface which are sequentially connected, wherein the water outlet interface is connected with a water pipe through a connecting pipe, and the first temperature sensor, the second temperature sensor, the electric tracing band and the electromagnetic valve are respectively in communication connection with the communication control module. The heat pump assistant provided by the invention adopts split type arrangement of the inner machine device and the outer machine device, can be integrally installed and can be separately installed, and has the advantages of small volume, light weight, ingenious structural design and convenience in installation, the heat pump is cooled in summer, the defrosting and deicing of the heat pump are realized in winter, and the normal operation of the heat pump is ensured.

Description

Heat pump assistant
Technical Field
The invention belongs to the technical field of three-constant system, and particularly relates to a heat pump assistant.
Background
The air source heat pump of the central air conditioning system or the three-constant system is usually arranged on an outer wall, the installation condition is usually bad, some buildings are not provided with special air conditioning equipment installation platforms, perforation installation is needed on the wall, the installation space is limited, in summer, the outdoor temperature is too high, so that the heat pump cannot work due to poor heat exchange or high temperature, in winter, the outdoor temperature is lower, the icing phenomenon of heat pump fins can occur below zero, and because a heat pump assistant is arranged on the heat pump, the stress capacity of the heat pump is limited, the whole volume of the heat pump assistant is not easy to be too large, so that the load of the heat pump is not increased; in general, the air source heat pump has a relatively bad installation condition, a limited installation space and a possibility of being positioned at a high position of a building, and difficult construction is caused, so that a heat pump assistant with a control device and a heat pump installation device capable of being installed in a split manner and integrally is required.
Disclosure of Invention
The invention aims to: in view of the shortcomings of the prior art, the invention aims to provide a heat pump assistant.
The technical scheme is as follows: in order to achieve the above object, the present invention adopts the following technical scheme:
the heat pump assistant comprises an inner machine device and an outer machine device fixed on a heat pump shell, wherein the outer machine device and the inner machine device are connected through a pipeline, the outer machine device comprises a bracket, and a water pipe, a spray head connected to the tail end of the water pipe, a first temperature sensor for detecting the water temperature in the water pipe, a second temperature sensor for detecting the outdoor temperature and an electric tracing band for heating the water in the water pipe are arranged on the bracket; the indoor unit device comprises a power supply module, a communication control module, a water inlet interface, a pressure reducing valve, an electromagnetic valve and a water outlet interface, wherein the water inlet interface, the pressure reducing valve, the electromagnetic valve and the water outlet interface are sequentially connected, the water inlet interface is connected with a municipal water source, the water outlet interface is connected with a water pipe through a connecting pipe, and the first temperature sensor, the second temperature sensor, the electric tracing band and the electromagnetic valve are respectively in communication connection with the communication control module.
Preferably, the support comprises a left support, a right support, a shell and a middle support, wherein the shell and the middle support are arranged between the left support and the right support, the water pipe and the spray head are arranged on the shell, a fixing frame is further arranged at the lower end of the middle part of the shell, one ends of the spray head, the second sensor and the water pipe are arranged on the fixing frame, and the other end of the water pipe is inserted into a water pipe interface of the left support or the right support.
Preferably, the water pipe comprises a hose, the electric tracing band and the first temperature sensor are tightly attached to the hose, and a heat preservation pipe surrounding the periphery of the hose is arranged outside the electric tracing band and the first temperature sensor.
Preferably, the shell is perpendicular to the left bracket and the right bracket and perpendicular to the horizontal plane, two ends of the middle bracket are connected with the left bracket and the right bracket through bolt connectors, and the horizontal positions of the middle bracket on the left bracket and the right bracket can be changed.
Preferably, the left bracket and the right bracket are respectively provided with a water pipe connector and a first wiring port, and the shell is provided with an irregular ventilation opening.
Preferably, the left bracket, the right bracket, the middle bracket and the shell are sheet metal parts.
Preferably, the power module, the communication control module, the water inlet interface, the pressure reducing valve, the electromagnetic valve and the water outlet interface are arranged in a box body, the input end of the power module is connected with the mains supply, the output end of the power module is connected with the communication control module, the pressure reducing valve and the electromagnetic valve, the communication control module is provided with a communication device, and is connected with an automatic control box of the three-constant system through the communication device, and a second wiring port is further arranged on the box body.
Preferably, the periphery of the communication control module and the periphery of the power module are provided with waterproof covers, and the communication control module and the power module are respectively provided with independent waterproof covers, or the communication control module and the power module are provided with integrated waterproof covers, and the waterproof covers are fixed on the inner side surface of the box body through waterproof sealant.
Preferably, the communication device is an RS485 communication interface and/or a wireless communication module, and the communication control module is in wired connection with the self-control box through the RS485 communication interface and an RS485 cable or in wireless connection with the self-control box through the wireless communication module.
Preferably, symmetrical fixing legs are arranged on the left side and the right side of the rear side of the box body, an openable cover plate is arranged on the front side of the box body, and a transparent observation window is arranged on the cover plate.
The beneficial effects are that: compared with the prior art, the invention has the following advantages:
the heat pump assistant provided by the invention adopts split type arrangement of the inner machine device and the outer machine device, can be integrally installed and can be separately installed, the outer machine device and the outer machine device are connected through the connecting pipe and the cable, the outer machine can be conveniently installed on the shell of the heat pump, and the outer machine device has the advantages of small structure, small occupied area, light weight, good stability and convenience in carrying and installation. The internal machine device can be arranged indoors, and integrates all modules in one box body, so that reasonable layout and design are performed, the volume is small, and the occupied installation space is small; the power module and the communication control module in the box body are waterproof, so that the influence of water leakage on the circuit module is prevented, the burning out of the circuit is avoided, the temperature of the heat pump is reduced in summer, and defrosting and deicing of the heat pump are realized in winter, so that the normal operation of the heat pump is ensured.
Drawings
FIG. 1 is a perspective view of the heat pump assistant external machine device;
FIG. 2 is a schematic view of a part of the external device of the heat pump assistant;
FIG. 3 is a front view of a heat pump assistant external device;
FIG. 4 is a rear view of the heat pump assistant external device;
FIG. 5 is a perspective view of a heat pump internal unit;
FIG. 6 is a schematic diagram of the internal structure of the heat pump assistant internal unit;
fig. 7 is a perspective view showing the internal structure of the heat pump assistant internal unit.
Detailed Description
The invention will be further illustrated with reference to specific examples, which are carried out on the basis of the technical solutions of the invention, it being understood that these examples are only intended to illustrate the invention and are not intended to limit the scope thereof.
As shown in fig. 1-7, the heat pump assistant of the present application comprises an inner machine device and an outer machine device fixed on a heat pump shell, wherein the outer machine device and the inner machine device are connected through a pipeline, the outer machine device comprises a bracket, a water pipe 7, a spray head 9 connected at the tail end of the water pipe 7, a first temperature sensor 10 for detecting the water temperature in the water pipe 7, a second temperature sensor 13 for detecting the outdoor temperature and an electric tracing band 12 for heating the water in the water pipe 7 are arranged on the bracket; the internal machine device comprises a power supply module 23, a communication control module 22, and a water inlet interface 26, a pressure reducing valve 25, an electromagnetic valve 24 and a water outlet interface 27 which are sequentially connected, wherein the water outlet interface 27 is connected with the water pipe 7 through a connecting pipe, and the first temperature sensor 10, the second temperature sensor 13, the electric tracing band 12, the electromagnetic valve 24 and the pressure reducing valve 25 are respectively in communication connection with the communication control module 22 through cables.
The support includes left socle 1, right branch frame 2 to and set up casing 8 and well support 4 between left socle 1 and right branch frame 2, and water pipe 7 and shower nozzle 9 set up on casing 8, still are provided with mount 5 at the middle part lower extreme of casing 8, and specifically, shower nozzle 9, second sensor 13 and one end setting of water pipe 7 are on mount 5, and the other end of water pipe 7 inserts the setting in the water pipe interface 71 of left socle 1 or right branch frame 2.
The water pipe 7 comprises a hose 11, an electric tracing band 12 and a first temperature sensor 10, wherein the electric tracing band 12 and the first temperature sensor 10 are arranged close to the hose 11, a heat preservation pipe encircling the periphery of the hose 11 is arranged outside the electric tracing band 12 and the first temperature sensor 10, and the hose can be made of a metal pipe with better heat conductivity. The second temperature sensor 13 detects outdoor temperature and transmits temperature information to the communication control module 22, the communication control module 22 judges that the temperature condition is higher in summer, when the temperature is higher than a set value, the communication control module 22 controls the electromagnetic valve 24 to be opened, tap water is conveyed to the water pipe 7 and the spray head 9, and water is sprayed to the heat pump for cooling; when the temperature in winter is lower than the set value, the communication control module 22 controls the electromagnetic valve 24 to start water supply, and simultaneously starts the electric tracing band 12 to heat, and the hot water sprayed by the spray head 9 is used for defrosting and deicing the heat pump. The first temperature sensor 10 detects the temperature of the water in the hose 11, transmits temperature information to the communication control module 22, and adjusts the heating power of the electric tracing band 12 according to the water temperature so as to reach a set proper temperature.
The housing 8 is arranged perpendicular to the left and right brackets 1, 2 and perpendicular to the horizontal plane. The left end and the right end of the shell 8 are respectively provided with a side bracket 3 fixedly connected with the left bracket 1 and the right bracket 2, and the side brackets 3 are provided with free reinforcing ribs to increase stability. An irregular ventilation opening 81 is arranged on the shell 8, so that air flow is facilitated, the ventilation openings 81 are arranged at intervals, and the total area of all the through openings is larger than 70% of the total area of the shell. The horizontal positions of the middle support 4 on the left support 1 and the right support 2 can be changed, a plurality of screw holes corresponding to the positions can be formed in the left support 1 and the right support 2, two ends of the middle support 4 are connected with the left support 1 and the right support 2 through bolt connectors, and the fixed positions of the middle support 4 are movable and are suitable for various heat pumps.
The left bracket 1 and the right bracket 2 are respectively provided with a water pipe interface 71 and a first wiring port 6, which are suitable for connecting a water pipe 7 and a cable from different directions, and are convenient to use. The left support 1, the right support 3, the side middle support 3, the middle support 4 and the shell 8 are all sheet metal parts, the strength is high, the stability is good, the corrosion resistance is realized, and the service life of the heat pump assistant external machine is prolonged.
In order to reduce the volume of the internal machine device, the internal machine device is convenient to install and use, a power module 23, a communication control module 22, a water inlet interface 26, a pressure reducing valve 25, an electromagnetic valve 24 and a water outlet interface 27 are arranged in a box body 21, the water inlet interface 27, the pressure reducing valve 25, the electromagnetic valve 24 and the water outlet interface 27 are sequentially connected, the water inlet interface 27 is connected with municipal water, the pressure is reduced through the pressure reducing valve 25, the water flows to the electromagnetic valve 24 and then flows to the water outlet interface 27, and the water outlet interface 27 conveys the water to a water pipe 7 and a spray head 9 of the external machine device. The input end of the power supply module 23 is connected with the mains supply to convert the mains supply into direct current required by the module in the device, and the output end of the power supply module is connected with the communication control module 22, the pressure reducing valve 25 and the electromagnetic valve 24 to supply power to the communication control module; the communication control module 22 is internally provided with a communication device, the communication control module 22 is connected with an automatic control box of the three-constant system through the communication device and transmits data with the automatic control box, and the box body 21 is also provided with a second wiring port 28. The power module 23 adopts a direct current stabilized power supply, and the output end of the direct current stabilized power supply outputs 12V and 24V direct current. The direct-current stabilized power supply comprises a power transformer, a rectifying circuit, a filter circuit and a voltage stabilizing circuit.
The layout of the components in the case 21 is: the power module 23 and the communication control module 22 are arranged at the upper part in the box 21 side by side, the electromagnetic valve 24 and the pressure reducing valve 25 are arranged at the lower part in the box 21, water flows through the electromagnetic valve 24 and the pressure reducing valve 25, and the power module 23 and the communication control module 22 are arranged at the upper part of the box 21 in order to avoid the influence of fault water leakage on the power module 23 and the communication control module 22.
In order to further improve the waterproof effect, the connection part of the electromagnetic valve 24 or the pressure reducing valve 25, or the connection part of the pressure reducing valve 25 and the water inlet interface 26, or the connection part of the electromagnetic valve 24 and the water outlet interface 27 is prevented from leaking, water is sprayed to the upper part due to high water pressure, waterproof covers 30 are arranged on the peripheries of the communication control module 22 and the power supply module 23, and the communication control module 22 and the power supply module 23 are preferably respectively provided with the independent waterproof covers 30, or the communication control module 22 and the power supply module 23 are provided with the integrated waterproof covers 30, and the waterproof covers 30 are fixed on the inner side surface of the box body 21 through waterproof sealant, so that the sealing effect is improved; in order to improve the heat dissipation effect, heat dissipation holes (not shown in the figure) are formed in the back surfaces of the communication control module 22 and the power module 23, that is, the heat dissipation holes are formed in the back side surface of the box body 21 to be outwards arranged, so that the heat dissipation effect is achieved, and meanwhile, better waterproof performance is achieved.
The communication device is in a single form of an RS485 communication interface or a wireless communication module, or the RS485 communication interface or the wireless communication module is arranged at the same time, and the communication control module 22 is in wired connection with the self-control box through the RS485 communication interface and an RS485 cable, or in wireless connection with the self-control box through the wireless communication module.
For the office area or the household user with smaller area, the wireless communication module can adopt a wifi module or a zigbee module to carry out short-distance signal transmission, the connection between the heat pump assistant control device and the automatic control box is realized in a small-range local area network, the data transmission is carried out, the better communication effect can be realized, the cost is lower, and the wireless communication module is very suitable for the household user.
In order to facilitate the fixation of the invention, symmetrical fixing feet 29 are arranged on the left and right sides of the rear side surface of the box body 21; in order to facilitate maintenance and to observe the conditions of the components in the case in real time, an openable cover plate 31 is provided on the front side of the case 21, and a transparent observation window 32 is provided on the cover plate 31.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims (8)

1. A heat pump assist, characterized by: the heat pump water heater comprises an inner machine device and an outer machine device fixed on a heat pump shell, wherein the outer machine device and the inner machine device are connected through a pipeline, the outer machine device comprises a bracket, a water pipe, a spray head connected to the tail end of the water pipe, a first temperature sensor for detecting the water temperature in the water pipe, a second temperature sensor for detecting the outdoor temperature and an electric tracing band for heating the water in the water pipe are arranged on the bracket; the internal machine device comprises a power supply module, a communication control module, and a water inlet interface, a pressure reducing valve, an electromagnetic valve and a water outlet interface which are sequentially connected, wherein the water inlet interface is connected with a municipal water source, the water outlet interface is connected with a water pipe through a connecting pipe, and the first temperature sensor, the second temperature sensor, the electric tracing band and the electromagnetic valve are respectively in communication connection with the communication control module;
the bracket comprises a left bracket, a right bracket, a shell and a middle bracket, wherein the shell and the middle bracket are arranged between the left bracket and the right bracket, the water pipe and the spray head are arranged on the shell, a fixing frame is further arranged at the lower end of the middle part of the shell, one end of the spray head, one end of the second sensor and one end of the water pipe are arranged on the fixing frame, and the other end of the water pipe is inserted into a water pipe interface of the left bracket or the right bracket;
the utility model discloses a three-constant system power supply device, including power module, communication control module, water inlet, relief pressure valve, solenoid valve and water outlet, power module input is connected with the commercial power, and the output is connected with communication control module, relief pressure valve and solenoid valve, communication control module is provided with communication device, is connected with the automatic control box of three constant system through communication device still be provided with the second wiring mouth on the box.
2. The heat pump assist of claim 1 wherein: the water pipe comprises a hose, the electric tracing band and the first temperature sensor are tightly attached to the hose, and a heat preservation pipe surrounding the periphery of the hose is arranged outside the electric tracing band and the first temperature sensor.
3. The heat pump assist of claim 1 wherein: the shell is perpendicular to the left support and the right support and perpendicular to the horizontal plane, two ends of the middle support are connected with the left support and the right support through bolt connectors, and the horizontal positions of the middle support on the left support and the horizontal position of the right support can be changed.
4. The heat pump assist of claim 1 wherein: the left support and the right support are respectively provided with a water pipe connector and a first wiring port, and the shell is provided with an irregular ventilation opening.
5. The heat pump assist of claim 1 wherein: the left support, the right support, the middle support and the shell are sheet metal parts.
6. The heat pump assist of claim 1 wherein: the waterproof cover is arranged on the periphery of the communication control module and the periphery of the power supply module, and the communication control module and the power supply module are respectively provided with an independent waterproof cover, or the communication control module and the power supply module are provided with an integrated waterproof cover, and the waterproof cover is fixed on the inner side surface of the box body through waterproof sealant.
7. The heat pump assist of claim 1 wherein: the communication device is an RS485 communication interface and/or a wireless communication module, and the communication control module is in wired connection with the self-control box through the RS485 communication interface and an RS485 cable or in wireless connection with the self-control box through the wireless communication module.
8. The heat pump assist of claim 1 wherein: the left side and the right side of the rear side of the box body are provided with symmetrical fixing feet, the front side of the box body is provided with an opening and closing cover plate, and the cover plate is provided with a transparent observation window.
CN201811512457.5A 2018-12-11 2018-12-11 Heat pump assistant Active CN109631183B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811512457.5A CN109631183B (en) 2018-12-11 2018-12-11 Heat pump assistant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811512457.5A CN109631183B (en) 2018-12-11 2018-12-11 Heat pump assistant

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Publication Number Publication Date
CN109631183A CN109631183A (en) 2019-04-16
CN109631183B true CN109631183B (en) 2024-04-16

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Application Number Title Priority Date Filing Date
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201265993Y (en) * 2008-07-28 2009-07-01 重庆京天机电设备有限公司 Evaporation cooling and defrosting device of air cooling type cooling and heating pump unit
CN209558735U (en) * 2018-12-11 2019-10-29 南京慧和建筑技术有限公司 A kind of heat pump assistant control device
CN209639148U (en) * 2018-12-11 2019-11-15 南京慧和建筑技术有限公司 A kind of outer machine structure of heat pump assistant
CN209782841U (en) * 2018-12-11 2019-12-13 南京慧和建筑技术有限公司 Heat pump assistant

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201265993Y (en) * 2008-07-28 2009-07-01 重庆京天机电设备有限公司 Evaporation cooling and defrosting device of air cooling type cooling and heating pump unit
CN209558735U (en) * 2018-12-11 2019-10-29 南京慧和建筑技术有限公司 A kind of heat pump assistant control device
CN209639148U (en) * 2018-12-11 2019-11-15 南京慧和建筑技术有限公司 A kind of outer machine structure of heat pump assistant
CN209782841U (en) * 2018-12-11 2019-12-13 南京慧和建筑技术有限公司 Heat pump assistant

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