CN113251697B

CN113251697B - Hanging type heat pump unit and heat pump water heater

Info

Publication number: CN113251697B
Application number: CN202010089158.6A
Authority: CN
Inventors: 康乐; 魏爱国
Original assignee: Haier Smart Home Co Ltd; Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd; Qingdao Haier New Energy Electric Appliance Co Ltd
Current assignee: Haier Smart Home Co Ltd; Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd; Qingdao Haier New Energy Electric Appliance Co Ltd
Priority date: 2020-02-12
Filing date: 2020-02-12
Publication date: 2022-11-15
Anticipated expiration: 2040-02-12
Also published as: CN113251697A

Abstract

The invention discloses a hanging heat pump unit and a heat pump water heater. Suspension type heat pump set includes: the water-saving type air conditioner comprises a base, a compressor, an evaporator, a fan, a water level sensor, an electric heater and an electric control plate, wherein the base is provided with a mounting part for hanging and mounting, and the base is also provided with a water receiving disc; the fan is arranged on the base, and the water level sensor is arranged in the water pan and used for detecting the water level in the water pan; the electric heater is positioned above the water receiving tray; the electric control board is arranged on the base, and the compressor, the fan, the water level sensor and the electric heater are respectively electrically connected with the electric control board. The invention heats the evaporated defrosting water through the electric heater to realize automatic treatment of the defrosting water, thereby improving the user experience.

Description

Hanging type heat pump unit and heat pump water heater

Technical Field

The invention belongs to the technical field of household appliances, and particularly relates to a hanging type heat pump unit and a heat pump water heater.

Background

At present, a water heater is a household appliance commonly used in daily life. Water heaters are generally classified into electric water heaters, gas water heaters and heat pump water heaters, and heat pump water heaters are widely popularized and used due to high energy efficiency.

The heat pump water heater generally comprises a heat pump unit and a water tank, wherein the heat pump unit comprises a compressor, an evaporator and a fan which are arranged in a shell, the water tank generally comprises a tank shell, an inner container and a condenser, and the compressor, the evaporator, a throttling device and the condenser are connected together to form a refrigerant loop. Chinese patent No. 201110059903.3 discloses a semi-hidden assembled air source heat pump water heater, which is fixedly installed on an indoor roof in a hanging installation mode.

However, because heat pump set is in the use, the defrosting water that produces on the evaporimeter can drip in the water collector of bottom, and because heat pump set suspension mounting is on outdoor roof, the inconvenient outer row of defrosting water appears easily, the condition that defrosting water drips from the roof, leads to user experience relatively poor. In view of this, how to design a technology for automatically treating frost and water to improve user experience is a technical problem to be solved by the present invention.

Disclosure of Invention

The invention provides a hanging heat pump unit and a heat pump water heater, which can heat evaporating frost water through an electric heater to realize automatic treatment of the frost water, thereby improving the user experience.

In order to achieve the technical purpose, the invention adopts the following technical scheme:

in one aspect, the present invention provides a suspended heat pump unit comprising:

the base is provided with an installation part for hanging installation and a water receiving disc;

a compressor disposed on the base;

the evaporator is arranged on the base and is positioned above the water pan;

the fan is arranged on the base and used for driving air to flow to the evaporator for heat exchange;

a water level sensor disposed in the drip tray and detecting a water level in the drip tray;

the electric heater is positioned above the water receiving tray;

the electric control board is arranged on the base, and the compressor, the fan, the water level sensor and the electric heater are respectively electrically connected with the electric control board.

Further, the method also comprises the following steps: the air guide cover is arranged on the base, covers the air outlet side of the evaporator, and forms an air outlet cavity between the air guide cover and the evaporator; wherein, the electric heater is located in the air outlet cavity.

Further, the method also comprises the following steps: the cover is arranged on the base, an installation cavity is formed between the cover and the base, and the compressor, the evaporator, the fan and the wind scooper are positioned in the installation cavity; the base is provided with a first air inlet and a first air outlet, the first air inlet is communicated with the mounting cavity, and the first air outlet is communicated with the air outlet cavity.

Furthermore, the base is located below the water pan to form a ventilation channel, and the first air outlet is communicated with the air outlet cavity through the ventilation channel.

Furthermore, a baffle is further arranged at the bottom of the base, and a ventilation channel is formed between the baffle and the bottom of the water pan.

Furthermore, the housing is provided with a second air inlet and a second air outlet, the second air inlet is communicated with the mounting cavity, and the second air outlet is communicated with the air outlet cavity;

the suspension type heat pump unit still includes:

the air door component is used for selectively opening and closing the first air inlet, the first air outlet, the second air inlet and the second air outlet, the air door component is electrically connected with the electric control board, and the air door component is electrically connected with the electric control board.

Furthermore, the air door component comprises a first air door, a second air door, a third air door and a fourth air door, the first air door is arranged at the first air inlet, the second air door is arranged at the first air outlet, and the third air door is arranged at the second air inlet, and the fourth air door is arranged at the second air outlet.

Furthermore, a temperature sensor and a humidity sensor are arranged in the first air inlet, and the temperature sensor and the humidity sensor are respectively electrically connected with the electric control board.

Furthermore, an overflow pipe is further arranged on the water receiving tray.

In another aspect, the invention further provides a heat pump water heater, which comprises a water tank, wherein a condenser is arranged in the water tank, the heat pump unit further comprises a compressor and an evaporator of the heat pump unit, and the compressor and the evaporator of the heat pump unit are connected with the condenser to form a refrigerant loop.

Compared with the prior art, the invention has the advantages and positive effects that: through set up level sensor in the water collector to dispose electric heater in the top of water collector, there is the condition of defrosting water in the water collector at level sensor detects, and electric heater circular telegram to the water in the evaporation water collector is heated to the heat that produces through electric heater, realizes not having the defrosting water drainage, and then reduces or avoids appearing the condition that defrosting water drips from the roof, has improved user experience nature.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a reference diagram illustrating the operation of a heat pump unit according to an embodiment of the heat pump water heater of the present invention;

FIG. 2 is a schematic structural diagram of a water tank in an embodiment of a heat pump water heater according to the present invention;

FIG. 3 is a schematic structural diagram of a heat pump unit according to an embodiment of the heat pump water heater of the present invention;

FIG. 4 is one of the partial exploded views of FIG. 3;

FIG. 5 is a second partial exploded view of FIG. 3;

FIG. 6 is a schematic view of the base of FIG. 3;

FIG. 7 is a schematic view of a heat pump unit according to another embodiment of the heat pump water heater of the present invention;

FIG. 8 is a cross-sectional view of a heat pump unit according to an embodiment of the heat pump water heater of the present invention;

FIG. 9 is an exploded view of the wind scooper of the heat pump water heater according to the embodiment of the present invention;

FIG. 10 is an assembled cross-sectional view of the base and the wind scooper of the heat pump water heater according to the present invention;

FIG. 11 is an assembly view of an evaporator and an electric heater in an embodiment of a heat pump water heater according to the present invention;

FIG. 12 is a control flow diagram of an embodiment of the heat pump water heater of the present invention;

fig. 13 is a control flow chart of another embodiment of the heat pump water heater of the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In a first embodiment, as shown in fig. 1 and 2, the present invention provides a heat pump water heater, which generally comprises a heat pump unit 100 and a water tank 200. The heat pump unit 100 includes a base, and a compressor, an evaporator, a throttle device, and a blower mounted on the base, and the water tank 200 includes a housing (not shown), an inner container 201, and a condenser 202.

The compressor, the evaporator, the throttle device, and the condenser 202 are connected to form a refrigerant circulation flow path, and heat treatment is performed on water in the inner tank 201 by using the principle of a heat pump. The above is the basic configuration of the conventional heat pump water heater, and is not limited and described herein.

The heat pump unit can meet the requirement of hanging installation, and can be arranged on the suspended ceiling 1000 in the bathroom. In the actual installation and use process, the heat pump unit 100 is fixed on the indoor roof in a hanging installation manner and is hidden on the ceiling 1000. The water tank 200 is installed in a conventional manner and is used in the home of a user.

In a second embodiment, as shown in fig. 3 to fig. 11, the heat pump unit 100 includes: base 1, compressor 2, evaporimeter 3, fan 4, automatically controlled board 5 and housing 7.

In order to meet the requirement of hanging installation, the base 1 is provided with an installation part 10 for hanging installation; an evaporator 3 and a fan 4 are arranged on the base 1, and the fan 4 is used for driving airflow to exchange heat through the evaporator 3. The housing 7 is arranged on the base 1 to form a shell, and a mounting cavity is formed between the housing 7 and the base 1.

Wherein, a water pan 14 is also arranged on the base 1, a liquid level sensor 142 is arranged in the water pan 14, an overflow pipe 141 is also arranged on the water pan 14, and the evaporator 3 is positioned above the water pan 14; the heat pump unit also comprises an electric heater 31, and the electric heater 31 is positioned above the water receiving tray 14; wherein, the liquid level sensor 142 and the electric heater 31 are respectively electrically connected with the electric control board.

In the operation process of the heat pump water heater, after the evaporator 3 is defrosted, the defrosted water on the evaporator 3 drops into the water receiving tray 14. As the defrosting water in the drip tray 14 continuously accumulates, the defrosting water in the drip tray 14 reaches a certain water level, and at this time, the level sensor 142 detects the water level value in the drip tray 14.

In the event that the level sensor 142 detects water being held in the drip tray 14, the level sensor 142 will trigger the electronic control panel 5 to activate the electric heater 31. The electric heater 31 typically generates heat to heat the defrost water in the lower drip tray 14 to evaporate the defrost water in the drip tray 14 without being discharged outside.

In order to improve the evaporation efficiency, the fan 4 can be started through the electric control board 5, and the fan 4 can drive the air on the water pan 14 to flow rapidly, so as to improve the evaporation efficiency.

In another embodiment, in order to improve the safety and reliability of the use, an overflow pipe 141 is further provided on the drip tray 14. In the event that the level sensor 142 fails to detect the water level, the amount of defrosted water in the drip tray 14 may gradually increase. In order to avoid the water level of the defrosting water from being higher than the upper edge of the water receiving tray 14, the defrosting water can be automatically discharged through the overflow pipe 141, and the defrosting water is prevented from overflowing the water receiving tray 14 to overflow.

In some embodiments, the electric heater 31 may be mounted on the evaporator 3 for ease of assembly. Correspondingly, the evaporator 3 is provided with a mounting seat 32, the electric heater 31 is provided on the mounting seat 32, and the mounting seat 32 can be fixed on the tube plate of the evaporator 3 by screws, so that the electric heater 31 can be conveniently and reliably mounted and fixed by the mounting seat 32. In order to accurately control the heating temperature, a temperature controller 33 for detecting the heating temperature of the electric heater 31 is further arranged on the mounting seat, and the temperature controller 33 can detect the heating temperature of the electric heater 31. And for the manifestation of the electric heater 31, the electric heater 31 may include a plurality of electric heating sheets, and a heating zone is formed between two adjacent electric heating sheets. Alternatively, the electric heater 31 is an electric heating tube.

In some embodiments, the base 1 is provided with a first air inlet 1001 and a first air outlet 1002, and the first air inlet 1001 and the first air outlet 1002 are respectively communicated with the installation cavity. In the process of heating the defrosting water in the water receiving tray 14, after the fan 4 is started, air enters the housing through the first air inlet 1001, and water vapor generated by the electric heater 31 heating the defrosting water in the water receiving tray 14 is output to the outside of the housing from the second air outlet 1002.

In a preferred embodiment, in order to sufficiently heat the defrosting water in the water pan 14 by using the heat generated by the electric heater 31, the base 1 is further provided with the air guiding cover 8, the air guiding cover 8 is arranged on the base 1 and located in the installation cavity, and the air guiding cover 8 covers the air outlet side of the evaporator 3, so that an air outlet cavity is formed between the air guiding cover 8 and the evaporator 3; the first air outlet 1002 is communicated with the air outlet cavity, and the first air inlet 1001 is communicated with the mounting cavity; the base 1 is located below the water pan to form a ventilation channel (not marked), and the first air outlet 1002 is communicated with the air outlet cavity through the ventilation channel.

The temperature of the air heated by the electric heater 31 is still high, and the high-temperature air is guided to flow from the bottom of the water tray 14 through the ventilation channel before being output to the outside through the first air outlet 1002. In the process that the high-temperature air flows through the bottom of the water pan 14, the high-temperature air can further heat the defrosting water in the water pan 14, so that the defrosting water in the water pan 14 can be sufficiently heated by the heat generated by the electric heater 31. In some embodiments, a baffle 17 may be provided at the bottom of the base 1, the baffle 17 and the bottom of the drip tray 14 forming the ventilation channel therebetween.

In other embodiments, the first inlet 1001 and the first outlet 1002 are adapted to communicate with a room (e.g., a bathroom) to circulate air between the enclosure and the room. The air delivered from the bathroom into the enclosure is, on the one hand, relatively humid and, on the other hand, relatively warm. This allows the evaporator 3 to obtain more heat. Compare in evaporimeter 3 and outdoor air carry out the heat transfer, the difference in temperature of refrigerant and the air of bathroom output is bigger in evaporimeter 3, and then can more effectual improvement heat exchange efficiency, realizes utilizing the waste heat or the used heat in bathroom in order to improve the energy efficiency effectively and reduce the energy consumption.

In another embodiment, in order to meet the requirement of the water tank for heating water in the heat pump water heater, the evaporator in the heat pump unit needs to exchange heat with outdoor air. Therefore, a second air inlet 1003 and a second air outlet 1004 are correspondingly arranged on the housing 7; the second air inlet 1003 and the second air outlet 1004 are respectively communicated with the installation cavity; the heat pump unit is also provided with an air door assembly 16, the air door assembly 16 is used for selectively opening and closing a first air inlet 1001, a first air outlet 1002, a second air inlet 1003 and a second air outlet 1004, and the air door assembly 16 is electrically connected with the electric control board. The second air inlet 1003 and the second air outlet 1004 are used for communicating with the outside to meet the requirement of the air circulation flowing between the casing and the outside.

In actual use, as for the air source for heat exchange of the evaporator 3, indoor air or outdoor air can be used, as will be described below with reference to the accompanying drawings.

1. Under the condition that indoor air is used as an air source for heat exchange of the evaporator 3, the fan 4 is used for driving air to enter the installation cavity through the first air inlet 1001 and to be output from the first air outlet 1002 after heat exchange of the evaporator 3. In actual use, after the heat pump unit is hung and installed, the first air inlet 1001 and the first air outlet 1002 are disposed on the base 1, so that air exchange can be directly performed with indoor air. Take the installation of a heat pump unit in a bathroom as an example, wherein a ceiling pinch plate is not installed below the first air inlet 1001 and the first air outlet 1002 in the ceiling of the bathroom, so as to expose the first air inlet 1001 and the first air outlet 1002. The exposed first air inlet 1001 and the exposed first air outlet 1002 can directly exchange air with the bathroom. The method comprises the following specific steps: under the action of the fan 4, air in the bathroom enters the installation cavity formed by the heat pump unit through the first air inlet 1001, and the air is subjected to heat exchange through the evaporator 3 and then is output to the bathroom through the first air outlet 1002.

In some embodiments, the first air inlet 1001 and the first air outlet 1002 are disposed on the lower surface of the base 1, the first air inlet 1001 is located on the air inlet side of the evaporator 3, and the first air outlet 1002 is located on the air outlet side of the evaporator 3. The first air inlet 1001 and the first air outlet 1002 are directly arranged on the lower surface of the base 1, which is more favorable for smooth circulation of air between the installation cavity and the bathroom.

2. Under the condition that outdoor air is used as an air source for heat exchange of the evaporator 3, the heat pump unit further comprises a ventilation pipe 9, the ventilation pipe 9 comprises an air inlet channel 91 and an air outlet channel 92, the air inlet channel 91 is communicated with a second air inlet 1003, the air outlet channel 92 is communicated with a second air outlet 1004, and free end parts of the air inlet channel 91 and the air outlet channel 92 are connected to the outside. Specifically, during actual installation, the air inlet channel 91 and the air outlet channel 92 are respectively communicated with the outdoor side, outdoor air enters the installation cavity through the air inlet channel 91, and the air exchanges heat with the evaporator 3 and is then output to the outdoor through the air outlet channel 92.

Similarly, since the air after heat exchange can be smoothly output to the outdoor through the air outlet channel 92 without being gathered in the installation cavity, the phenomenon that the air flow after heat exchange is continuously remained in the installation cavity to repeatedly exchange heat with the evaporator 3 is avoided, and thus, the heat exchange efficiency of the evaporator 3 can be improved more efficiently.

Meanwhile, in order to switch different air sources for heat exchange as required, the heat pump unit further comprises an air door assembly 16, and a first air inlet 1001, a first air outlet 1002, a second air inlet 1003 and a second air outlet 1004 are selectively switched through the air door assembly 16, so that indoor or outdoor air sources can be switched and used as required.

There are various forms of presentation entities for the damper assembly 16, such as: the air door assembly 16 may be air doors respectively disposed at the first air inlet 1001, the first air outlet 1002, the second air inlet 1003 and the second air outlet 1004, and the function of switching the use of indoor or outdoor air sources is realized by controlling the opening and closing of the air doors. Specifically, the first air inlet 1001 is provided with a first air door 161, the first air outlet 1002 is provided with a second air door 162, the second air inlet 1003 is provided with a third air door 163, and the second air outlet 1004 is provided with a fourth air door 164. The opening and closing of different air doors are controlled by the electric control board 5.

In the third embodiment, the heat pump unit further includes a humidity sensor (not shown), where the humidity sensor is used to detect the inlet air humidity of the first air inlet 1001; the first air inlet 1001 is used for sucking air in the bathroom into the installation cavity, the air is condensed and dehumidified by the evaporator 3, and the dried air is conveyed back into the bathroom through the first air outlet 1002.

During the bathing process of a user, the humidity in the bathroom can be gradually increased along with the increase of the bathing time. At this time, the compressor is started after the air humidity detected by the humidity sensor is greater than the set humidity value. The evaporator 3 can condense the air introduced into the housing by the compressor, so that moisture contained in the air is condensed and attached to the surface of the evaporator 3, and the air is processed by the evaporator 3 to become dry air and then delivered to the bathroom again. After the air circularly flows between the bathroom and the shell, the aim of adjusting the humidity of the air in the bathroom can be achieved.

When the humidity of the air detected by the humidity sensor is low and the humidity value is set to judge that the indoor air is too dry, if the liquid level sensor 142 detects that condensed water exists in the water receiving tray 14, the fan 4 and the electric heater 31 are started, the electric heater 31 is positioned above the water receiving tray 14 to accelerate the evaporation of water in the water receiving tray 14, and the fan 4 conveys the humidified air to the indoor space to adjust the indoor humidity.

In addition, the evaporator 3 can absorb the heat of the air in the condensation and dehumidification process, so that the air conveyed back to the bathroom is cooled, and the temperature in the bathroom is prevented from being excessively cooled. The electric heater 31 may be activated as necessary to heat the air condensed by the evaporator 3. After the electric heater 31 is started, the temperature drop of the air after heat exchange through the evaporator 3 can be compensated, so that the temperature in the bathroom is prevented from dropping too low, and the dehumidification requirement is met.

Further, in order to accurately control the operation of the electric heater 31, a temperature sensor (not shown) for detecting the temperature of the intake air from the first intake port 1001 is further disposed on the housing. The method specifically comprises the following steps: when the inlet air temperature detected by the temperature sensor is lower than a first set temperature value t1, starting the electric heater 31 and shutting down the compressor 2; when the inlet air temperature detected by the temperature sensor is higher than the second set temperature value t2 and the air humidity detected by the humidity sensor is higher than the first set humidity value R1, the compressor 2 is started again and the electric heater 31 is turned off; wherein t1 is less than t2.

When the inlet air temperature is lower than the first set temperature value t1, it indicates that the temperature in the bathroom is low, and at this time, the electric heater 31 is started to heat the air input into the bathroom, and the compressor 2 is stopped to suspend the evaporator 3 from performing the condensation dehumidification operation. When the temperature sensor 31 detects that the temperature of the inlet air rises to the second set temperature value t2, if the humidity of the air detected by the humidity sensor is greater than the first set humidity value R1, the compressor 2 is started and the electric heater 31 is turned off.

In order to meet the requirement of hanging hidden installation for the heat pump unit 100, the embodiment four effectively reduces the overall height of the heat pump unit to meet the requirement that the heat pump unit is hidden installed in a suspended ceiling. Wherein, in order to effectively reduce the overall height of the heat pump unit, the compressor 2 is transversely arranged and installed on the base 1; the fan 4 and the evaporator 3 are located on the same side of the compressor 2.

Specifically, a compressor 2 in the heat pump unit is transversely arranged and fixedly installed on a base 1. Therefore, the height space occupied by the compressor 2 can be effectively reduced, and the overall height of the heat pump unit can be effectively reduced. Meanwhile, the fan 4 and the evaporator 3 are located on the same side of the compressor 2, so that the fan 4 mainly blows air or sucks air to the evaporator 3, the overall size of the fan 4 is reduced, and the increase of the height size of the heat pump unit caused by the fan 4 is avoided.

In some embodiments, to facilitate installation of the compressor 2, one end of the base 1 is provided with a mounting platform 11, and the compressor 2 is disposed on the mounting platform 11. Specifically, the compressor 2 is transversely installed and fixed on a mounting platform 11, and the mounting platform 11 is located at one end of the base 1, so that the compressor 2 is arranged at the corresponding end position of the base 1. Preferably, in order to reduce the effect of vibration generated by the operation of the compressor 2, a mounting bracket 12 is disposed on the mounting platform 11, a vibration damping pad 13 is further disposed between the mounting bracket 12 and the mounting platform 11, and the compressor 2 is mounted on the mounting bracket 12.

For the mounting bracket 12, in order to cooperate with the damping pad 13 to achieve a better damping effect, two mounting brackets 12 arranged side by side are arranged on the mounting platform 11, the mounting bracket 12 has a fixing portion 121 and raised portions 122 distributed on two sides of the fixing portion 121, the fixing portion 121 is fixed on the mounting platform 11, and the damping pad 13 is arranged between the raised portions 122 and the mounting platform 11; wherein the compressor 2 is fixed to the raised portion 122. Specifically, the mounting bracket 12 is usually manufactured by sheet metal parts, and has a certain elasticity, the compressor 2 is mounted on the tilting portion 122, and the bottom of the tilting portion 122 is pressed on the vibration damping pad 13, so that the self elasticity of the mounting bracket 12 is utilized and the elasticity of the vibration damping pad 13 is matched, and the vibration damping effect on the compressor 2 can be better. Meanwhile, in one embodiment, in order to improve the structural strength of the base 1 for installing and fixing the compressor 2, the lower surface of the installation platform 11 is provided with a plurality of reinforcing ribs 111 arranged in a staggered manner.

In some embodiments, to facilitate installation of the evaporator 3 and to meet the overall height requirements of the apparatus, the other end of the base 1 forms a water pan 14, and the evaporator 3 is disposed in the water pan 14. Specifically, the water pan 14 is formed on the base 1 and is recessed downward, and the evaporator 3 is disposed in the water pan 14, so that the installation height of the evaporator 3 on the base 1 can be reduced more effectively, and the evaporator 3 with a larger size can be used to improve the heat exchange efficiency.

As a preferred embodiment, in order to effectively improve the heat exchange capability of the evaporator 3 without increasing the height, the length dimension of the heat exchange is larger than the height dimension of the evaporator 3, so that the evaporator 3 is distributed along the length direction of the base 1, and the heat exchange area of the evaporator 3 is increased by fully utilizing the length direction of the base 1.

In the fifth embodiment, the heat pump unit is suspended and installed on an indoor roof, so that an operator can conveniently maintain the electric control device in the later period, for the base 1, the upper surface of the base 1 forms an upper installation surface, and the lower surface of the base 1 forms a lower installation surface. Wherein, the compressor 2, the evaporator 3 and the fan 4 are arranged on the upper mounting surface of the base 1; and as for the electric control board 5 for controlling the operation of the heat pump unit, the electric control board 5 is installed on the lower installation surface of the base 1.

After the heat pump unit is hung and installed, because the electric control board 5 is installed on the lower installation surface of the base 1, when the electric control board 5 needs to be maintained, the electric control board 5 only needs to be maintained by opening the hanging top at the lower part of the base 1. For the specific configuration of the electric control board 5, reference may be made to a control circuit board in a conventional heat pump unit, which is not limited and described herein.

As a preferred embodiment, a mounting groove 15 is formed on the lower mounting surface of the base 1, and the electric control board 5 is disposed in the mounting groove 15; the base 1 is further provided with a cover plate (not shown) for opening and closing the mounting groove 15. Specifically, by forming the mounting groove 15 on the lower mounting surface of the base 1, the electronic control board 5 is mounted and fixed conveniently, so that the electronic control board 5 is embedded in the base 1. Meanwhile, the cover plate covers the mounting groove 15, and the electric control plate can be protected.

In some embodiments, the compressor 2 may be disposed at the upper portion of the mounting groove 15, so that the wiring between the electric control board 5 and the top compressor 2 is more convenient. And as for the reinforcing rib 111, the reinforcing rib is formed in the mounting groove 15, the electric control board 5 is supported by the reinforcing rib 111, on one hand, the electric control board 5 is conveniently fixed on the reinforcing rib 111 through screws, on the other hand, the reinforcing rib 111 supports the electric control board 5, and the reinforcing rib 111 is also beneficial to the heat released by the electric control board 5 so as to ensure the reliable operation of the electric control board.

In the sixth embodiment, because the heat pump unit needs to be hung on an indoor roof, and in the operation process of the heat pump unit, vibration generated by the compressor 2 or the fan 4 is easily transmitted to a roof wall to cause serious noise, in order to solve the above problems, the base 1 is hung on the indoor roof through the suspension rod 6, and the suspension rod 6 is connected with the mounting part 10; an elastic damper 60 is provided between the lower end of the suspension lever 6 and the mounting portion 10.

Specifically, after the heat pump unit is suspended on the roof through the suspension rod 6, the elastic damping member 60 is sandwiched between the lower end of the suspension rod 6 and the mounting portion 10. Like this, at the heat pump set operation in-process, the vibration that compressor 2 or fan 4 produced is mostly absorbed by elastic damping piece 60 to reduce or avoid the vibration to transmit the roof via hanging pole 6, and then reduce the vibration and the noise influence that the heat pump set vibration caused indoor building, with improvement user experience nature. The body can be a spring fitted over the suspension rod 6 for the elastic damping member 60; alternatively, the elastic damping member 60 may be a rubber sleeve fitted over the suspension bar 6.

The representation entity of the mounting portion 10 may be in the form of a lifting lug, so that an insertion hole (not labeled) is formed at the upper portion of the mounting portion 10, and the lower end portion of the suspension rod 6 is inserted into the insertion hole. Specifically, a plurality of mounting portions 10 may be disposed on the periphery of the base 1 as needed, and in fig. 3, the mounting portions 10 are disposed at four corners of the base 1, respectively, the lower end portion of the suspension rod 6 is inserted into the insertion hole to hang the base 1, and the upper end portion of the suspension rod 6 is fixedly mounted on the roof.

In addition, an upper flanging structure (not labeled) is arranged on the upper part of the mounting part 10, and the upper flanging structure is provided with the jack. The mounting portion 10 can be made to abut against the elastic vibration damper 60 by the upturned structure to increase the contact area for more stable and reliable mounting.

In one embodiment, the lower part of the suspension rod 6 is provided with a thread, the lower part of the suspension rod 6 is connected with an adjusting nut 61 in a threaded manner, the adjusting nut 61 is positioned below the upper flanging structure, and the elastic damping piece 60 is clamped between the adjusting nut 61 and the upper flanging structure. In the actual installation process, the height position of the adjusting nut 61 on the suspension rod 6 is adjusted by rotating the adjusting nut to adjust the installation position of the base 1, so that the operator can conveniently install and adjust the suspension rod on site efficiently.

In some embodiments, a thread may be further provided on the upper portion of the suspension rod 6, and the upper portion of the suspension rod 6 is connected with a fastening nut 62 through the thread; the upper end of the suspension rod 6 forms a conical bolt, an expansion pipe 63 is sleeved on the suspension rod 6, and the expansion pipe 63 is positioned above the fastening nut 62. Specifically, the upper end part of the suspension rod 6, the fastening nut 62 and the expansion pipe 63 form an expansion bolt structure, so that the suspension rod 6 can be directly and fixedly installed in the concrete of a roof without additionally using other installation functional parts, the installation process is simplified, and the installation cost is reduced.

Seventh embodiment, in order to reduce the adverse effect of noise generated by the operation of the compressor 2 and the fan 4 on the user. The housing 7 is a housing having a soundproof function, and the housing 7 is mounted on the base 1 and covers the compressor 2, the evaporator 3, and the fan 4. An installation cavity is formed between the housing 7 and the base 1, and the compressor 2, the evaporator 3 and the fan 4 are all positioned in the relatively closed installation cavity. In this way, the noise generated during the operation of the compressor 2 and the fan 4 is effectively limited by the casing 7 to be transmitted to the outside, so as to reduce the operation noise. For example: soundproof cotton may be provided in the housing 7 to perform a better soundproof function.

As a preferred embodiment, since the noise generated during the operation of the compressor 2 is greater, an auxiliary soundproof cover 21 is further provided in the installation cavity to cover the compressor 2. Specifically, the auxiliary soundproof cover 21 is covered in the housing 7, and the noise generated by the compressor 2 is first subjected to soundproof treatment by the auxiliary soundproof cover 21 and then further subjected to soundproof treatment by the housing 7, so that the influence of the noise on the user is reduced to the maximum extent.

In some embodiments, a recess 71 extending towards the base 1 is provided on the casing 7, the compressor 2 is located on one side of the recess 71, and the evaporator 3 and the fan 4 are located on the other side of the recess 71. Specifically, the concave structure 71 makes the area of the housing 7 wrapping the auxiliary soundproof housing 21 larger, which is more favorable for playing the effect of sound insulation and noise reduction. Moreover, the compressor 2 can be separated from the evaporator 3 and the fan 4 by the concave structure 71, so that the air flow generated by the fan 4 can more effectively carry out heat exchange treatment on the evaporator 3, and the end part of the base 1 for installing the compressor 2 is reduced, so that the heat exchange efficiency of the air flow is improved.

Eighth embodiment, based on the above technical solution, optionally, for the installation position of the fan 4, the fan 4 can be arranged on the air inlet side of the evaporator 3 or the air outlet side of the evaporator 3 according to the requirement. And the specific type of the fan 4 is described below with reference to the accompanying drawings.

In some embodiments, as shown in fig. 4, the blower 4 may be a cross-flow blower, and a cross-flow wind wheel of the cross-flow blower is disposed in the wind outlet cavity. In order to meet the installation requirement of the cross-flow fan, the air guide cover 8 arranged on the base 1 is correspondingly improved, namely, shaft holes (not marked) are arranged at two end parts of the air guide cover 8, and a rotating shaft of the cross-flow wind wheel is rotatably arranged in the shaft holes; one end of the air guide cover 8 is also provided with a cross-flow motor (not marked), and the cross-flow motor is connected with a rotating shaft of the cross-flow wind wheel.

And in the in-service use in-process, because heat pump set hangs and installs on indoor roof, when fan 4 broke down and need maintain, in order to reduce the maintenance degree of difficulty, then wind scooper 8 adopts the components of a whole that can function independently structure, includes promptly: the mask comprises a first mask body 81 and a second mask body 82, wherein two ends of the first mask body 81 are respectively provided with a first semicircular notch 810, and two ends of the second mask body 82 are respectively provided with a second semicircular notch 820; the first semicircular notch 810 and the second semicircular notch 820 located at the same end are butted together to form the shaft hole. In the stage of assembling in a factory, the cross-flow wind wheel is disposed between the first cover 81 and the second cover 82, and then the first cover 81 and the second cover 82 are assembled together, so that the fan 4 can be assembled. And when the cross-flow wind wheel is maintained at a later stage, the cross-flow wind wheel can be taken out for maintenance and replacement only by detaching the first cover body 81 and the second cover body 82.

As for the first cover 81, it includes: the air guide plate comprises two first end plates 811 and an air guide plate 812, wherein a first semicircular notch 810 is formed in the edge of each first end plate 811, and the air guide plate 812 is of an arc-shaped plate structure and is arranged between the two first end plates 811; and the second cover 82 includes: two second end plates 821 and a connecting piece 822, wherein the edge of the first end plate 811 is provided with a second semicircular notch 820, and the connecting piece 822 is arranged between the two second end plates 821; wherein the first end plate 811 and the second end plate 821 at the same end are connected together; in addition, the second end plate 821 abuts on the end of the evaporator 3, and the air deflector 812 abuts on the upper edge of the evaporator 3. Specifically, the outer surface of the air guiding plate 812 forms the air guiding surface 80 correspondingly to guide the air flowing from the external air to the evaporator 3.

In order to facilitate an operator to rapidly assemble the first cover 81 and the second cover 82 together, the edge of the first end plate 811 is provided with a positioning plate 8111 extending outwards, the edge of the second end portion is provided with a positioning slot 8121, and the positioning plate 8111 is inserted into the positioning slot 8121, so that the first cover 81 and the second cover 82 can be pre-assembled and positioned by the positioning plate 8111 and the positioning slot 8121 being matched with each other.

Meanwhile, the edge of the first end plate 811 is provided with a positioning bump 8112, the edge of the first end plate 811 is provided with a positioning notch 8212, and the positioning bump 8112 is disposed in the positioning notch 8212. The positioning convex blocks 8112 are located below the positioning plate 8111 and distributed on two sides of the first semicircular notch 810, when the positioning cover is assembled, the second cover body 82 is hung on the first cover body 81 through the matching of the positioning clamping grooves 8121 and the positioning plate 8111, then the lower portion is positioned through the matching of the positioning convex blocks 8112 and the positioning notch 8212, and finally the first cover body 81 and the second cover body 82 are connected and fixed through screws. Only one screw needs to be respectively arranged on two sides between the first cover body 81 and the second cover body 82 to complete assembly, and therefore assembly efficiency is improved.

More importantly, because positioning channel 8121 and locating plate 8111 cooperation can provide the structure spacing on the upper portion in shaft hole to the installation fan 4 that first semicircle breach 810 and second semicircle breach 820 can be more reliable is ensured to the bottom sprag that carries out with location breach 8212 of cooperation bottom.

In some embodiments, the connector 822 may be a connecting plate, which abuts against the upper edge of the water pan 14, and the air tightness of the air outlet cavity is enhanced by the connecting plate matching with the edge of the water pan 14. Preferably, the cross section of the connecting plate is of an inverted U-shaped structure, so as to effectively increase the contact area between the connecting plate and the upper edge of the water pan 14,

in other embodiments, as shown in fig. 5, the fan 4 may be an axial flow fan, and in order to ensure that the fan 4 can generate sufficient air volume to exchange heat with the evaporator 3 under the condition of using the axial flow fan, a plurality of axial flow fans may be sequentially arranged along the length direction of the evaporator 3, so as to meet the requirement of air volume on one hand and meet the requirement of height design on the other hand. Preferably, the axial fan abuts against the air intake side of the evaporator 3.

In a ninth embodiment, as shown in fig. 12, a specific control method of a heat pump water heater includes:

and S101, judging whether hot water flows out of the water tank and whether the time for the hot water to continuously flow out is longer than a first set time length T1 through a water flow sensor, and judging whether the user starts bathing through the S101.

After the step S101 detects that the time for continuously flowing out the hot water is longer than a first set time period T1, the user is judged to start bathing.

And S102, starting a fan in the heat pump unit. Specifically, under the action of the fan, air in the bathroom is circulated and flows into the shell of the heat pump unit.

And the shell is also provided with a humidity sensor for detecting the humidity of the inlet air of the air inlet, and the air flows into the shell after the step S102.

Step S103 is executed, the humidity sensor detects the humidity of the air entering the housing through the air inlet, and after detecting that the humidity of the air is greater than the first set humidity value R1, it is determined that the humidity in the bathroom is too high, and the air dehumidification is required.

In step S103, it is determined that the air dehumidification process is necessary, and step S104 is executed to start the compressor. Specifically, after the compressor is started, the evaporator in the shell is in a refrigerating state, and the evaporator can condense and dehumidify air flowing through so as to reduce the moisture content in the air. Therefore, the humidity of the air entering the bathroom from the air outlet is low, and the humidity of the air in the bathroom can be adjusted.

Further, in the bathing process, after the heat pump unit is started, the humidity of the air in the bathroom is gradually reduced, and the control method further comprises the following steps: step S105, after the air humidity detected by the humidity sensor is smaller than a second set humidity value R2; executing step S106, and shutting down the compressor; wherein R1 is greater than R2. Specifically, after the air humidity detected by the humidity sensor is smaller than the second set humidity value R2, the compressor stops operating, and the evaporator will not perform condensation dehumidification operation on the air. However, the blower will continue to operate to detect the humidity of the air in real time by the humidity sensor.

And as the user continues to use the hot water, the humidity of the bathroom will gradually rise, and when the humidity detected by the humidity sensor exceeds the first set humidity value R1 again, the compressor is started again.

In another embodiment, after the user has finished bathing, the humidity in the bathroom is still higher than the humidity of other indoor houses, and for this reason, the control method further includes step S107, after the water flow sensor detects that no water flows, determining whether the duration of the no water flows is longer than a second set time period T2, so as to determine whether the user has finished bathing.

And after the user bathes completely through the step S107, executing the step S108, and turning off the fan and the compressor. Specifically, after a user bathes, the T2 time after water cut-off is utilized, the air in the bathroom is dehumidified through the evaporator, and meanwhile, in the dehumidification process, the evaporator utilizes the waste heat of the air in the bathroom to achieve heat exchange efficiency so as to improve the heating efficiency of water in the water tank.

Meanwhile, after bathing, the temperature in the bathroom is gradually reduced under the action of the operation of the heat pump unit, so that the temperature difference between the inside and the outside of the bathroom is reduced. Therefore, after the user leaves the bathroom, the uncomfortable feeling degree of the user caused by overlarge temperature difference can be effectively reduced.

In a preferred embodiment, the control method specifically includes: and after the water flow sensor detects that no water flows and the duration is longer than a second set time length T2, if the air humidity detected by the humidity sensor is longer than a second set humidity value R2, the compressor and the fan continue to operate. After the user has finished bathing through step S107, if the humidity of the air detected by the humidity sensor is greater than the second set humidity value R2, the operation time of the heat pump unit can be extended to perform more effective dehumidification of the bathroom by the heat pump unit. And when the air humidity detected by the humidity sensor is less than or equal to a second set humidity value R2, the compressor and the fan are shut down.

In a preferred embodiment, after the user has bathed, the temperature in the bathroom remains high compared to the temperature in the other rooms, and the heat of the air in the bathroom can be further utilized to heat the water in the water tank. Therefore, the control method further comprises the step S107 of judging whether the duration time of the anhydrous flow is longer than a second set time length T2 or not after the anhydrous flow is detected by the water flow sensor so as to judge whether the user finishes bathing.

And after the user finishes bathing through the step S107, executing a step S108, and turning off the fan and the compressor. Specifically, after a user bathes, the T2 time after water cut-off is utilized, so that the heat pump unit can fully utilize the air waste heat in the bathroom to heat the evaporator, the heat exchange efficiency of the evaporator is improved, and the water in the water tank is heated by fully utilizing the waste heat in the bathroom. Meanwhile, after bathing, the temperature in the bathroom is gradually reduced under the action of the operation of the heat pump unit, so that the temperature difference between the inside and the outside of the bathroom is reduced. Therefore, after the user leaves the bathroom, the uncomfortable degree of the user body feeling caused by the overlarge temperature difference can be effectively reduced.

In a preferred embodiment, in order to more fully utilize the residual heat in the bath chamber, the control method specifically comprises: after the water flow sensor detects that no water flows and the duration time is longer than a second set time length T2, if the temperature detected by the temperature sensor is longer than a second set temperature value T2, the compressor and the fan continue to operate. After the user bathes completely through step S107, if the temperature detected by the temperature sensor is greater than the second set temperature value t2, the operation time of the heat pump unit can be prolonged, so as to fully utilize the air residual heat in the bathroom. And when the temperature sensor detects that the temperature is less than or equal to a second set temperature value t2, the compressor and the fan are shut down.

In the tenth embodiment, in the winter environment, there is usually central heating in the room, and after the user falls asleep at night, the user will not use the device for other rooms except for lying down. Taking a bathroom as an example, if a user sets a time period from 10 pm to 5 am as a set time period, the heat pump water heater starts the heat pump unit in the set time period, the fan sucks air in the bathroom into the shell through the first air inlet, and the air exchanges heat with the evaporator and then is conveyed to the bathroom through the first air outlet, so that water in the water tank is heated by indoor heat.

As shown in fig. 13, the control method specifically includes:

step S201, in a set time period, the fan is started first.

Step S202, the temperature of the air entering the shell through the first air inlet is detected through the temperature sensor, and after the detected inlet air temperature is larger than a third set temperature value t3, the waste heat utilization is judged.

Step 203, starting the compressor. Specifically, after the compressor is started, the evaporator exchanges heat with hot air output from the bathroom so as to efficiently heat water in the water tank by using heat in the bathroom.

In another embodiment, after the heat pump unit is started, the temperature of the bathroom is gradually reduced, and the control method further comprises:

step 204, after the compressor is started, detecting the inlet air temperature through a temperature sensor, and judging whether the inlet air temperature is less than a fourth set temperature value t4; wherein t3 is greater than t4. After the heat pump set started, the operation of refrigerating can be continuously carried out to the air in the bathroom, when temperature sensor detected that the inlet air temperature was less than fourth settlement temperature value t4, then need stop to carry out the operation of refrigerating to the air in bathroom to avoid the bathroom temperature cooling to hang down excessively.

After the intake air temperature is detected to be lower than the fourth set temperature value t4 through step S204, step S205 is executed to shut down the compressor. Specifically, after the compressor is shut down, the evaporator will pause the cooling operation of the air entering the enclosure, thus preventing the bathroom from being cooled further. Under the action of central heating, the temperature in the bathroom will gradually rise. In the process of compressor shutdown, the fan is still in continuous operation or intermittent operation to make temperature sensor detect the inlet air temperature. And when the temperature detected by the temperature sensor exceeds the third set temperature value t3 again, the compressor is started again.

In another embodiment, the control method may further include: and S206, if the water temperature in the water tank reaches the set water temperature value in the set time period, executing S207, and shutting down the fan and the compressor.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A suspension type heat pump unit, its characterized in that includes:

the base is provided with an installation part for hanging installation, and the base is also provided with a water pan;

a compressor disposed on the base;

the evaporator is arranged on the base and is positioned above the water pan;

the water level sensor is arranged in the water receiving tray and used for detecting the water level in the water receiving tray;

the electric heater is positioned above the water receiving tray;

the electric control board is arranged on the base, and the compressor, the fan, the water level sensor and the electric heater are respectively electrically connected with the electric control board;

the air guide cover is arranged on the base, covers the air outlet side of the evaporator, and forms an air outlet cavity between the air guide cover and the evaporator;

the housing is arranged on the base, an installation cavity is formed between the housing and the base, and the compressor, the evaporator, the fan and the wind scooper are positioned in the installation cavity;

the base is provided with a first air inlet and a first air outlet, the first air inlet is communicated with the mounting cavity, the first air outlet is communicated with the air outlet cavity, and the electric heater is positioned in the air outlet cavity;

in addition, the base is located below the water pan to form a ventilation channel, and the first air outlet is communicated with the air outlet cavity through the ventilation channel.

2. The hanging heat pump unit as claimed in claim 1, wherein a baffle is further provided at the bottom of the base, and the vent passage is formed between the baffle and the bottom of the water pan.

3. The hanging heat pump unit of claim 1, wherein the housing is provided with a second air inlet and a second air outlet, the second air inlet is communicated with the installation cavity, and the second air outlet is communicated with the air outlet cavity;

the suspension type heat pump unit still includes:

the air door subassembly, the air door subassembly is used for the switch of selectivity first air intake first air outlet the second air intake with the second air outlet, the air door subassembly with automatically controlled board electricity is connected.

4. The hanging heat pump unit according to claim 3, wherein the air door assembly comprises a first air door, a second air door, a third air door and a fourth air door, the first air door is disposed at the first air inlet, the second air door is disposed at the first air outlet, the third air door is disposed at the second air inlet, and the fourth air door is disposed at the second air outlet.

5. The hanging heat pump unit as claimed in claim 3, wherein a temperature sensor and a humidity sensor are disposed in the first air inlet, and the temperature sensor and the humidity sensor are electrically connected to the electronic control board respectively.

6. A hanging heat pump unit according to any one of claims 1-5 wherein an overflow pipe is provided on the water pan.

7. A heat pump water heater comprises a water tank, wherein a condenser is arranged in the water tank, and the heat pump water heater is characterized by further comprising the hanging heat pump unit as claimed in any one of claims 1-6, and a compressor and an evaporator of the heat pump unit are connected with the condenser to form a refrigerant loop.