CN112984795B - Indoor heat pump unit and heat pump water heater - Google Patents

Abstract

The invention discloses an indoor heat pump unit and a heat pump water heater. Indoor heat pump set includes: the base is provided with an installation part for hanging installation; a compressor mounted on the base; a heat exchanger mounted on the base; the axial flow fans are sequentially arranged along the length direction of the heat exchanger. The heat exchange efficiency of the heat pump unit is improved while the miniaturization design requirement is met, so that the energy efficiency of the heat pump water heater is improved.

Description

Indoor heat pump unit and heat pump water heater

Technical Field

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

Background

At present, a water heater is a household appliance commonly used in daily life. The water heater is generally divided into an electric water heater, a gas water heater and a heat pump water heater, and the heat pump water heater is 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, and the water tank generally comprises a box shell, an inner container and an evaporator. The heat pump unit of the conventional heat pump water heater is usually placed outdoors, and the installation requirement cannot be met for high-rise buildings. Chinese patent No. 201110059903.3 discloses a semi-hidden assembled air source heat pump water heater, adopts the mode of hanging the installation, disposes air intake and air outlet on the heat pump set and satisfies the heat transfer requirement of evaporimeter.

However, because the requirement of hanging installation is to be met, the volume of the heat pump unit is limited, so that the whole volume of the heat pump unit is reduced, and the evaporator in the heat pump unit is not smooth in ventilation and heat exchange, so that the heat exchange efficiency is low. In view of this, how to design a heat pump water heater which meets the requirement of volume miniaturization and improves the heat exchange efficiency is the technical problem to be solved by the invention. .

Disclosure of Invention

The invention provides an indoor heat pump unit and a heat pump water heater, which can meet the miniaturization design requirement and improve the heat exchange efficiency of the heat pump unit so as to improve the energy efficiency of the heat pump water heater.

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

in one aspect, the present invention provides an indoor heat pump assembly comprising:

the base is provided with an installation part for hanging installation;

a compressor mounted on the base;

a heat exchanger mounted on the base;

the axial flow fans are sequentially arranged along the length direction of the heat exchanger.

Further, the axial flow fan is attached to the air inlet side of the heat exchanger.

Further, the length dimension of the heat exchanger is larger than the height dimension of the heat exchanger.

Further, the compressor is transversely disposed on the base.

Further, the compressor is located at one end of the base, and the heat exchanger is located at the other end of the base.

Further, the heat exchanger extends along the length direction of the base.

Further, the method also comprises the following steps:

the air guide cover is arranged at the other end of the base, covers the air outlet side of the heat exchanger and is used for guiding the airflow subjected to heat exchange through the heat exchanger to be output outwards.

Further, the method also comprises the following steps:

and the electric control board is arranged on the lower mounting surface of the base.

Further, a mounting groove is formed on the lower mounting surface of the base, and the electric control board is arranged in the mounting groove; and the base is also provided with a cover plate for opening and closing the mounting groove.

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

Compared with the prior art, the invention has the advantages and positive effects that: arrange a plurality of axial fans through the length direction along the heat exchanger, a plurality of axial fans can produce enough amount of wind and carry out the heat transfer with the heat exchanger on the one hand, in order to satisfy the heat transfer requirement of heat exchanger, on the other hand is when the increase heat transfer amount of wind, because axial fan arranges along the length direction of heat exchanger, can avoid the restriction of direction of height to axial fan size, a plurality of axial fans combined action can effectively improve the heat exchange efficiency of heat exchanger, under the condition that satisfies heat pump set furred ceiling installation small volume design requirement, the heat exchange efficiency of heat pump set has been improved in order to improve heat pump water heater's efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on the drawings without inventive labor.

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 view 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 structural diagram of a heat pump unit in 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 a second cross-sectional view of a heat pump unit according to an embodiment of the heat pump water heater of the present invention;

FIG. 10 is a schematic view of the vent of FIG. 9;

FIG. 11 is a second schematic view of the vent tube shown in FIG. 9;

FIG. 12 is a third cross-sectional view of a heat pump unit according to an embodiment of the heat pump water heater of the present invention;

FIG. 13 is an exploded view of the wind scooper of the heat pump water heater according to the present invention;

FIG. 14 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. 15 is an assembly view of a heat exchanger and an electric heating component in an 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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 only 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, a heat exchanger, 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 an auxiliary heat exchanger 202. The compressor, the heat exchanger, the throttling device and the auxiliary heat exchanger 202 are connected to form a refrigerant circulation flow path, and the water in the inner container 201 is heated by utilizing the principle of a heat pump. The above is the basic configuration of a conventional heat pump water heater, and is not limited and described herein.

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 in a user's home for use.

In order to meet the requirement of hanging hidden installation, the heat pump unit 100 needs to be modified in terms of layout of internal related components, hanging installation of the whole device, and air circulation flowing manner, and the following description specifically refers to the accompanying drawings.

In the second embodiment, as shown in fig. 3 and 4, in order to effectively reduce the overall height of the heat pump unit, it is desirable that the heat pump unit is installed in a suspended ceiling in a hidden manner. Then heat pump set includes: base 1, compressor 2, heat exchanger 3 and fan 4. In order to meet the requirement of hanging installation, the base 1 is provided with an installation part 10 for hanging installation; the heat exchanger 3 is arranged on the base 1; the fan 4 is used for driving the airflow to exchange heat through the heat exchanger 3. 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 heat exchanger 3 are located on the same side of the compressor 2.

Specifically, the compressor 2 of the heat pump unit is transversely arranged and fixedly arranged on the 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 heat exchanger 3 are positioned on the same side of the compressor 2, so that the fan 4 mainly blows air or sucks air to the heat exchanger 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, as shown in fig. 6, one end of the base 1 is provided with an installation platform 11, and the compressor 2 is disposed on the installation 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 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; in this case, the compressor 2 is fixed to the raised part 122. Specifically, the mounting bracket 12 is usually machined by sheet metal parts, and has 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 reduction pad 13, so that the self elasticity of the mounting bracket 12 is utilized and the elasticity of the vibration reduction pad 13 is matched, and the effect of reducing vibration of the compressor 2 can be better achieved. Meanwhile, in a certain 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, in order to facilitate installation of the heat exchanger 3 and meet the overall height requirement of the device, the other end of the base 1 forms a water pan 14, and the heat exchanger 3 is arranged above the water pan 14. Specifically, in the actual use process, the heat exchanger 3 is used for evaporation heat exchange, so that condensed water is generated on the surface of the heat exchanger 3, and the condensed water flows into the water pan 14 below the heat exchanger 3 under the action of gravity. The drain pipe 141 is disposed in the drain pan 14, and is discharged to the outside through the drain pipe 141. Wherein, form the water collector 14 of undercut on the base 1 to make heat exchanger 3 set up in water collector 14, like this, alright reduce the mounting height of heat exchanger 3 on base 1 more effectively, thereby can adopt the heat exchanger 3 of bigger size in order to improve heat exchange efficiency.

As a preferred embodiment, in order to effectively improve the heat exchange capability of the heat exchanger 3 without increasing the height, the length dimension of the heat exchanger 3 is greater than the height dimension of the heat exchanger 3, so that the heat exchangers 3 are distributed along the length direction of the base 1, and the length direction of the base 1 is fully utilized to increase the heat exchange area of the heat exchanger 3.

In the third embodiment, as shown in fig. 7, since the heat pump unit is suspended and installed on the indoor roof, in order to facilitate the operator to maintain the electronic control device in the later period, the upper surface of the base 1 forms the upper installation surface, and the lower surface of the base 1 forms the lower installation surface. Wherein, the compressor 2, the heat exchanger 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 mounted on the lower mounting 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 or 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 the switch 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 easily, 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 order to solve the above problem, as shown in fig. 3, the base 1 is suspended on the indoor roof through the suspension rod 6, and the suspension rod 6 is connected to the mounting portion 10; an elastic damper 60 is also provided between the lower end of the suspension rod 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 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 rod 6, and then reduce the vibration and the noise influence that heat pump set vibration caused indoor building, in order to improve 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 a 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 a jack is arranged on the upper flanging structure. 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 portion of the suspension rod 6 is provided with threads, the lower portion of the suspension rod 6 is threadedly connected with an adjusting nut 61, the adjusting nut 61 is positioned below the upper flanging structure, and the elastic damping member 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 and efficiently install and adjust the suspension rod on site.

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 expansion bolt structure is composed of the upper end part of the suspension rod 6, the fastening nut 62 and the expansion pipe 63, so that the suspension rod 6 can be directly and fixedly installed in the concrete of a roof, and other installation functional parts are not needed, so that the installation process is simplified, and the installation cost is reduced.

In the fifth embodiment, as shown in fig. 4, in order to reduce the adverse effect of noise generated by the operation of the compressor 2 and the fan 4 on the user. A cover 7 is further provided on the base 1, and the cover 7 is mounted on the base 1 and covers the compressor 2, the heat exchanger 3, and the fan 4. Specifically, an installation cavity is formed between the housing 7 and the base 1, and the compressor 2, the heat exchanger 3 and the fan 4 are all located 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 housing 7 to be transmitted to the outside, so as to reduce the operation noise. Preferably, the housing 7 is a housing with sound insulation function, such as: soundproof cotton can 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 heat exchanger 3 and the fan 4 are located on the other side of the recess 71. Specifically, the recessed structure 71 makes the area of the enclosure 7 wrapping the auxiliary soundproof cover 21 larger, and is more favorable for playing the effects of sound insulation and noise reduction. Moreover, the compressor 2 can be separated from the heat exchanger 3 and the fan 4 by the concave structure 71, so that the heat exchange treatment of the heat exchanger 3 can be more effectively carried out by the airflow generated by the fan 4, and the airflow flowing to the end part of the base 1 for installing the compressor 2 is reduced, so that the heat exchange efficiency of the airflow is improved.

In a sixth embodiment, based on the above technical solution, optionally, because the heat pump unit is suspended on a roof, in order to ensure that the heat exchanger 3 can efficiently exchange heat, for the air source used for heat exchange of the heat exchanger 3, indoor air or outdoor air may be used, as described below with reference to the accompanying drawings.

1. In the case of using indoor air as the air source for heat exchange in the heat exchanger 3, as shown in fig. 8, an air inlet 1001 and an air outlet 1002 are provided in the base 1. The fan 4 is used for driving air to enter the installation cavity through the air inlet 1001 and output from the air outlet 1002 after heat exchange is carried out through the heat exchanger 3. In actual use, after the heat pump unit is hung and installed, the air inlet 1001 and the air outlet 1002 are arranged on the base 1, so that air exchange can be directly carried out with the indoor environment. Taking the installation of a heat pump unit in a bathroom as an example, a ceiling buckle plate is not installed below the air inlet 1001 and the air outlet 1002 of the ceiling of the bathroom so as to expose the air inlet 1001 and the air outlet 1002. The exposed air inlet 1001 and 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 air inlet 1001, and the air is subjected to heat exchange through the heat exchanger 3 and then is output to the bathroom through the air outlet 1002. The specific air flow path is shown with reference to the dashed arrows in fig. 8.

In some embodiments, the air inlet 1001 and the air outlet 1002 are disposed on the lower surface of the base 1, the air inlet 1001 is located on the air inlet side of the heat exchanger 3, and the air outlet 1002 is located on the air outlet side of the heat exchanger 3. The air inlet 1001 and the air outlet 1002 are directly arranged on the lower surface of the base, which is more beneficial to smooth circulation of air between the installation cavity and the bathroom. In order to reduce the mutual influence of the air flows between the air inlet 1001 and the air outlet 1002, a recessed water pan 14 is formed on the base 1, and the water pan 14 is arranged between the air inlet 1001 and the air outlet 1002 so as to separate the air inlet 1001 and the air outlet 1002 by the water pan 14.

In order to improve the heat exchange efficiency of the heat exchanger 3, the heat pump unit further includes an air guiding cover 8, the air guiding cover 8 is disposed at the other end of the base 1, and the air guiding cover 8 is covered on the air outlet side of the heat exchanger 3 and is used for guiding the airflow after heat exchange by the heat exchanger 3 to be output outwards. Specifically, under the action of the fan 4, outside air enters the installation cavity and exchanges heat with the heat exchanger 3, and air flow after heat exchange enters the air guide cover 8 so as to be output outwards through the air guide cover 8. And the wind scooper 8 is arranged at the air outlet side of the heat exchanger 3, and the wind scooper 8 can better guide the air flow after heat exchange to be output to the outside of the installation cavity, so that the phenomenon that the air flow after heat exchange is continuously remained in the installation cavity and repeatedly exchanges heat with the heat exchanger 3 is avoided, and thus, the heat exchange efficiency of the heat exchanger 3 can be improved more efficiently.

The wind scooper 8 is arranged on the base 1 and located in the installation cavity, and the wind scooper 8 covers the air outlet side of the heat exchanger 3, so that an air outlet cavity is formed between the wind scooper 8 and the heat exchanger 3; the air outlet 1002 is communicated with the air outlet cavity, and the air inlet 1001 is communicated with the installation cavity.

2. Under the condition that outdoor air is adopted as an air source for heat exchange of the heat exchanger 3, as shown in fig. 9, the heat pump unit further comprises an air inlet channel 91 and an air outlet channel 92, wherein the air inlet channel 91 is communicated with the installation cavity, and the air outlet channel 92 is communicated with the air outlet cavity. 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 heat exchanger 3 and then is output to the outdoor through the air outlet channel 92. The specific air flow path is shown with reference to the dashed arrows in fig. 9. 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 heat exchanger 3 is avoided, and thus, the heat exchange efficiency of the heat exchanger 3 can be more efficiently improved.

In a preferred embodiment, the base 1 is also provided with an air guiding cover 8, so that the casing 7 and the heat exchanger 3 are matched to form an air outlet cavity. For the function of the wind scooper 8, reference is made to the above description of using indoor air as the air source, which is not described herein again.

In some embodiments, for convenience of assembly, as shown in fig. 4 and 9, a mounting opening 72 is provided on the housing 7, the mounting opening 72 is connected to the ventilation pipe 9, an air inlet channel 91 and an air outlet channel 92 are formed in the ventilation pipe 9, the air inlet channel 91 is communicated with the mounting cavity, and the air outlet channel 92 is communicated with the air outlet cavity. The ventilation pipe 9 is used for communicating with the outside to introduce outdoor air into the installation cavity and output the air after heat exchange to the outside. And an air inlet channel 91 and an air outlet channel 92 are integrated in the ventilation pipe 9, so that the rapid assembly of field operators is facilitated.

The ventilation pipe 9 is provided with a partition plate 93, and the partition plate 93 divides the ventilation pipe 9 into an air inlet channel 91 and an air outlet channel 92. As shown in fig. 10, the partition 93 is provided with an extension plate 931 extending to the outside of the ventilation pipe 9, and the extension plate 931 can isolate the inlet and outlet air in the outer end region of the ventilation pipe 9, so as to reduce mutual interference between the inlet and outlet air outside the heat pump unit. Preferably, the extension plate 931 is bent and extended toward the side of the air outlet duct 92, so that the heat-exchanged air output from the air outlet duct 92 can be guided away from the air inlet duct 91 by the bent extension plate 931. Or, as shown in fig. 11, the outer port of the air inlet channel 91 is away from the outer port of the air outlet channel 92, so that the mutual interference of the inlet air and the outlet air at the outer side can be reduced or avoided.

In some embodiments, in order to enable the air outlet channel 92 to be reliably communicated with the air outlet cavity, an auxiliary air outlet 1003 is arranged on the base 1, and the auxiliary air outlet 1003 is communicated with the air outlet cavity; the air outlet channel 92 is located below the air inlet channel 91, the air outlet channel 92 is connected with the auxiliary air outlet 1003, and the partition plate 93 abuts against the side portion of the base 1. Specifically, an auxiliary air outlet 1003 is disposed on a side wall of the base 1, so that the air outlet channel 92 and the air outlet cavity are communicated with each other through the auxiliary air outlet 1003. Meanwhile, because the partition plate 93 is abutted against the side part of the base 1, the air flow output from the auxiliary air outlet 1003 can be prevented from leaking to the air inlet channel 91,

in some embodiments, the surface of the air guiding cover 8 opposite to the air inlet channel 91 may be set to be the curved air guiding surface 80, and the air guiding surface 80 extends obliquely upward to the upper edge of the heat exchanger 3 along the air outlet direction of the air inlet channel 91, so that the air introduced from the air inlet channel 91 is guided to cross the heat exchanger 3 through the air guiding surface 80, and the air entering the installation cavity can smoothly pass through the heat exchanger 3 from the air inlet side of the heat exchanger 3 to exchange heat, so as to reduce the wind speed and improve the wind circulation efficiency, and further improve the heat exchange efficiency.

3. Under the condition that indoor or outdoor air is adopted as an air source for heat exchange by the heat exchanger 3 as required, as shown in fig. 12, on one hand, a vent (not marked) for air inlet or air outlet needs to be arranged at the bottom of the base 1 to meet the requirement of indoor air circulation flow; on the other hand, the ventilation pipe 9 is required to meet the requirement of heat exchange with outdoor air. Meanwhile, in order to switch different air sources for heat exchange according to needs, the heat pump unit further comprises a switching assembly 16, and the switching assembly 16 is used for selectively switching a ventilation opening or a ventilation pipe 9 to be communicated with the installation cavity.

In actual use, the ventilation opening or the ventilation pipe 9 is switched to be communicated with the installation cavity through the switching assembly 16, so that indoor or outdoor air sources can be switched to be used according to requirements. The ventilation opening generally includes an air inlet 1001 and an air outlet 1002 arranged at the bottom of the base 1, and the ventilation pipe 9 may be configured with two, one for air inlet and the other for air outlet, and for convenience of assembly, the ventilation pipe 9 may also be partitioned by a partition plate 93 to form an air inlet channel 91 and an air outlet channel 92.

There are various forms of presentation entities for the switching component 16, such as: the switching component 16 may be dampers respectively disposed in the air inlet 1001, the air outlet 1002, and the ventilation pipe 9, and the function of switching the air source to be used indoors or outdoors is realized by controlling the damper switches.

As a preferred embodiment, a wind inlet channel 91 and a wind outlet channel 92 are formed in the ventilation pipe 9, and the ventilation pipe 9 is located on the wind outlet side of the heat exchanger 3. And the switching assembly 16 includes: a first baffle 161 and a second baffle 162. The first baffle 161 is rotatably mounted on the base 1 and is used for selectively blocking the air outlet 1002 or the inlet of the air outlet channel 92; the second shutter 162 is rotatably installed on the base 1 and is used to open and close the intake opening 1001. Specifically, the first baffle 161 can rotate on the base 1 to switch and shield the inlet of the air outlet 1002 or the air outlet channel 92, so as to control the air after heat exchange to be output to the outside of the installation cavity through the air outlet 1002 or the air outlet channel 92.

For the air entering the installation cavity, the air inlet 1001 is opened and closed by only controlling the second baffle 162, so that the requirement of switching the air source can be met. The method specifically comprises the following steps: since the vent pipe 9 is away from the air intake side of the heat exchanger 3, the air intake 1001 is located on the air intake side of the heat exchanger 3. When needing to switch to use the room air as the air source, then second baffle 162 rotates and opens air intake 1001, under fan 4's effect, because air intake 1001 is adjacent heat exchanger 3, makes indoor air can be quick inhales in the installation cavity and carries out the heat transfer via heat exchanger 3. And when the outdoor air is used as the air source, the second baffle 162 is rotated to close the air inlet 1001, and at this time, the fan 4 is started, so that the outdoor air can be sucked into the installation cavity through the air inlet channel 91.

Through the arrangement of the first baffle 161 and the second baffle 162, the air source can be conveniently and reliably switched by using a simple structure, on one hand, the structural form of the switching assembly 16 is effectively simplified, on the other hand, the control process is more favorably simplified, and the operation of the heat pump unit is more reliable.

In order to rotationally drive the first shutter 161 and the second shutter 162, a driving motor 163 may be disposed to rotationally drive the first shutter 161 and the second shutter 162, respectively

Seventh embodiment, based on the above technical solution, optionally, for the installation position of the fan 4, the fan 4 may be arranged on the air inlet side of the heat exchanger 3 or the air outlet side of the heat exchanger 3 as required. And the specific type of the fan 4 is described below with reference to the drawings.

In some embodiments, as shown in fig. 4, the fan 4 may be a cross-flow fan, and a cross-flow wind wheel of the cross-flow fan 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 the maintenance, in order to reduce the maintenance degree of difficulty, as shown in fig. 13, 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 end parts of the first mask body 81 are respectively provided with a first semicircular notch 810, and two end parts of the second mask body 82 are respectively provided with a second semicircular notch 820; wherein, the first semicircular notch 810 and the second semicircular notch 820 at the same end are butted together to form a shaft hole. In the assembly stage of the 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 assembly of the fan 4 can be completed. 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 against the end of the heat exchanger 3, and the air deflector 812 abuts against the upper edge of the heat exchanger 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 heat exchanger 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 plate 821 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, a positioning protrusion 8112 is disposed at an edge of the first end plate 811, a positioning notch 8212 is disposed at an edge of the first end plate 811, and the positioning protrusion 8112 is disposed in the positioning notch 8212. The positioning lug 8112 is located below the positioning plate 8111 and distributed on two sides of the first semicircular notch 810, when the positioning lug 8112 is assembled, the second cover 82 is hung on the first cover 81 through the matching of the positioning clamping groove 8121 and the positioning plate 8111, then the lower part is positioned through the matching of the positioning lug 8112 and the positioning notch 8212, and finally the first cover 81 and the second cover 82 are fixedly connected through screws. The first cover 81 and the second cover 82 can be assembled only by arranging screws on two sides of the first cover and the second cover respectively, and therefore the assembling efficiency is improved.

More importantly, because positioning groove 8121 and locating plate 8111 cooperation can provide the structure spacing in 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, as shown in fig. 14, the connecting member 822 may be a connecting plate, the connecting plate abuts against the upper edge of the water collector 14, and the air tightness of the air outlet cavity is enhanced by the connecting plate matching with the edge of the water collector 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 heat exchanger 3, the axial flow fans may be sequentially arranged along the length direction of the heat exchanger 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 intake side of the heat exchanger 3.

Based on the above technical solution, optionally, the heat pump unit provided by the present invention may further add related components to expand the functions thereof, for example: when the heat pump unit is installed in a bathroom, the function of the bathroom heater can be integrated in the heat pump unit. The method specifically comprises the following steps: as shown in fig. 15, the heat pump unit further includes: an electric heating part 31, the electric heating part 31 is used for heating the airflow flowing to the air outlet 1002; correspondingly, the air outlet 1002 is arranged on the lower surface of the base 1 to realize air outlet to the indoor. Specifically, when a user bathes, the compressor 2 stops operating, and the electric heating component 31 and the fan 4 are powered on to operate, so that heated air enters the room through the air outlet 1002, and a bathroom heater heating function is realized.

Wherein, the air outlet 1002 is located at the air outlet side of the heat exchanger 3, and the electric heating component 31 is also arranged at the air outlet side of the heat exchanger 3 and above the air outlet 1002. Thus, the air is heated by the electric heating part 31 and then output from the air outlet 1002 below. In addition, when the air guiding cover 8 is disposed, it is preferable to dispose the electric heating member 31 in the air outlet chamber so as to efficiently heat air by using a space relatively closed by the air outlet chamber, thereby improving heating efficiency.

In some embodiments, the electric heating part 31 may be mounted on the heat exchanger 3 for ease of assembly. Correspondingly, the heat exchanger 3 is provided with a mounting seat 32, the electric heating part 31 is provided on the mounting seat 32, and the mounting seat 32 can be fixed on the tube plate of the heat exchanger 3 through screws, so that the electric heating part 31 can be conveniently and reliably mounted and fixed through the mounting seat 32. In order to accurately control the heating temperature, the mounting seat 32 is further provided with a temperature controller 33 for detecting the heating temperature of the electric heating component 31, and the temperature controller 33 can detect the heating temperature of the electric heating component 31.

For the representation of the electric heating part 31, the electric heating part 31 may include a plurality of electric heating sheets, and a heating area is formed between two adjacent electric heating sheets. Alternatively, the electric heating part 31 is an electric heating tube.

In some embodiments, in order to further enrich the use function, the lower surface of the base 1 is further provided with an illumination lamp (not shown). The illuminating lamp can be arranged on the lower surface of the base 1 and positioned in the area below the water pan 14 so as to meet the requirement of indoor illumination.

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; such modifications and substitutions do not depart from the spirit and scope of the corresponding claims.

Claims (9)

1. An indoor heat pump unit, comprising:

the air conditioner comprises a base, wherein an installation part for hanging installation is arranged on the base, and an air inlet and an air outlet are arranged on the lower surface of the base;

a compressor mounted on the base;

a heat exchanger mounted on the base;

the axial flow fans are sequentially arranged along the length direction of the heat exchanger;

the air guide cover is arranged at the other end of the base, covers the air outlet side of the heat exchanger, and forms an air outlet cavity between the air guide cover and the heat exchanger;

the air inlet channel and the air outlet channel are arranged in the ventilation pipe;

a switching assembly, the switching assembly comprising: a first baffle and a second baffle;

the base is further provided with a cover, the cover is mounted on the base and covers the compressor, the heat exchanger and the axial flow fan, a mounting cavity is formed between the cover and the base, the ventilating pipe is located on the air outlet side of the heat exchanger, the air inlet channel and the air inlet are respectively communicated with the mounting cavity, the air outlet channel and the air outlet are respectively communicated with the air outlet cavity, the first baffle plate is rotatably mounted on the base and used for selectively blocking the air outlet or the inlet of the air outlet channel, and the second baffle plate is rotatably mounted on the base and used for opening and closing the air inlet;

in addition, the surface of the air guide cover opposite to the air inlet channel forms an air guide surface, and the air guide surface obliquely and upwards extends to the upper edge of the heat exchanger along the air outlet direction of the air inlet channel;

a partition board is arranged in the ventilation pipe and divides the ventilation pipe into the air inlet channel and the air outlet channel; the end part of the wind scooper is connected with the clapboard.

2. An indoor heat pump assembly according to claim 1, wherein the axial fan abuts against the air intake side of the heat exchanger.

3. An indoor heat pump assembly according to claim 1, wherein the length dimension of the heat exchanger is greater than the height dimension of the heat exchanger.

4. An indoor heat pump assembly according to claim 1, wherein the compressor is arranged transversely of the base.

5. An indoor heat pump unit according to claim 4, wherein the compressor is located at one end of the base and the heat exchanger is located at the other end of the base.

6. An indoor heat pump unit according to claim 5, wherein the heat exchanger extends along the length direction of the base.

7. An indoor heat pump unit according to any one of claims 1 to 6, further comprising:

and the electric control board is arranged on the lower mounting surface of the base.

8. An indoor heat pump unit according to claim 7, wherein a mounting groove is formed on a lower mounting surface of the base, and the electric control plate is disposed in the mounting groove; and the base is also provided with a cover plate for opening and closing the mounting groove.

9. A heat pump water heater comprises a water tank, wherein an auxiliary heat exchanger is arranged in the water tank, and the heat pump water heater is characterized by further comprising an indoor heat pump unit as claimed in any one of claims 1 to 8, and a compressor and the heat exchanger of the indoor heat pump unit are connected with the auxiliary heat exchanger to form a refrigerant loop.

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