CN219868081U - heat pump heater - Google Patents

Abstract

The utility model relates to the field of heat pumps, in particular to a heat pump heater, which comprises an outer shell, an evaporator, a middle partition plate and a centrifugal fan, wherein the outer shell comprises an installation inner cavity surrounded by a top cover, a chassis and side walls, and an air outlet is formed in the top cover; the evaporator is U-shaped and is arranged in the installation cavity; the middle partition board is vertically connected between the top cover and the chassis; the centrifugal fan is detachably arranged between the evaporator and the middle partition plate through the supporting piece, the air inlet end of the centrifugal fan faces the evaporator, and the air outlet end of the centrifugal fan is positioned right below the air outlet; the evaporator in the heat pump heater is U-shaped, and the two sides of the centrifugal fan are respectively provided with an air inlet end, so that the heat exchange efficiency is improved; compared with an axial flow fan, the centrifugal fan has smaller occupied space in the outer shell, is favorable for reducing the overall size of the heat pump heater, and besides, the height of the support piece for fixing the centrifugal fan is lower, the overall rigidity of the support piece is increased, vibration is reduced, maintenance is reduced, and noise is low.

Description

Heat pump heater

Technical Field

The utility model belongs to the technical field of heat pumps, and particularly relates to a heat pump heater.

Background

The heat pump heater is a heat supply unit which uses a small amount of electric energy as power and mainly absorbs heat from air to realize heat supply. Compared with the traditional coal, firewood, oil and gas boiler, the air energy heat pump is environment-friendly and clean, and can not cause safety accidents such as fire, explosion and poisoning.

The fan is used for driving air in the heat pump heater to flow so as to realize heat exchange of the heat exchanger, the fan of the existing heat pump heater is mainly an axial flow fan, the installation mode is mainly that the motor is fixed on the motor bracket through a screw, the fan blades are fixed on the motor rotor shaft, and the fan blades are driven to rotate through motor rotation; the air flow enters the machine body from the evaporator, and is output to the outside of the machine body, so that the occupied space of the axial flow fan is large, and enough installation space is needed, so that the whole equipment of the heat pump heater is large in volume, and the miniaturization improvement is not facilitated; besides, the axial flow fan has smaller air inlet area, and generates large noise during operation, so that the user experience is required to be improved.

Disclosure of Invention

The utility model aims to provide a heat pump heater, which aims to solve the problems that in the prior art, an axial flow fan is mainly used for driving air flow in the existing heat pump heater, the whole heat pump heater is large in equipment size, high in noise and the like.

In order to achieve the aim of the utility model, the utility model is realized by adopting the following technical scheme:

the utility model provides a heat pump heater, which comprises:

the shell comprises an installation inner cavity surrounded by a top cover, a chassis and side walls, and an air outlet is formed in the top cover;

the evaporator is arranged in the installation cavity and positioned between the top cover and the chassis, and the evaporator is U-shaped;

a middle partition plate vertically connected between the top cover and the chassis;

the centrifugal fan is detachably mounted between the evaporator and the middle partition plate through a supporting piece, the air inlet end of the centrifugal fan faces the evaporator, and the air outlet end of the centrifugal fan is located right below the air outlet.

In some embodiments of the utility model, the air outlet is detachably provided with a grille member.

In some embodiments of the present utility model, a lap outer edge is formed on the peripheral side of the grille member, the lap outer edge is detachably connected to the air outlet through a fastener, and a gap is formed between the air outlet end of the centrifugal fan and the air outlet.

In some embodiments of the present utility model, a mounting portion is formed on the centrifugal fan for detachable connection with the support member, a mounting opening with a downward opening is formed on the mounting portion, and an inclined first mounting surface is formed in the mounting opening.

In some embodiments of the present utility model, the support member includes an upper support portion, a lower support portion, and a support stand portion located between the upper support portion and the lower support portion, the support member is connected to the top cover through the upper support portion, is connected to the chassis through the lower support portion, and is integrally formed with the upper support portion, the lower support portion, and the support stand portion, the upper support portion and the lower support portion being located on the same side of the support stand portion.

In some embodiments of the utility model, the support stand is provided with a weight-reducing opening.

In some embodiments of the present utility model, the support stand portion is formed with a bending portion extending in a direction opposite to the upper and lower support portions.

In some embodiments of the present utility model, two sides of the upper support portion are further formed with connection outer edges extending obliquely upwards, second installation surfaces matched with the inclination angles of the first installation surfaces are formed on the connection outer edges, the connection outer edges are installed in the installation openings, and the first installation surfaces and the second installation surfaces are in contact connection.

In some embodiments of the utility model, the centrifugal fan comprises a volute and a fan, the volute comprises a front volute and a rear volute, and the front volute and the rear volute are detachably connected through a fastening screw; air inlet ends are formed on two sides of the centrifugal fan.

In some embodiments of the present utility model, a mounting opening is formed in the top of the middle partition for mounting the electronic control box.

Compared with the prior art, the utility model has the advantages and positive effects that:

the heat pump heater is characterized in that the centrifugal fan is fixed on the chassis through the supporting piece, and compared with the axial flow fan, the centrifugal fan occupies smaller space in the outer shell, so that the overall size of the heat pump heater is reduced;

in addition, the evaporator is U-shaped, and the air inlet ends are formed on the two sides of the centrifugal fan correspondingly, so that the heat exchange efficiency is improved.

Other features and advantages of the present utility model will become apparent upon review of the detailed description of the utility model in conjunction with the drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing a partial structure of an embodiment of a heat pump heater according to the present utility model;

FIG. 2 is a schematic view of the location of the intermediate baffle in connection with the evaporator;

FIG. 3 is a split schematic of FIG. 2;

FIG. 4 is a schematic view of a grating structure;

FIG. 5 is a schematic view of an evaporator structure;

FIG. 6 is a schematic diagram of a centrifugal fan configuration;

FIG. 7 is a schematic view of a mounting location;

FIG. 8 is a schematic diagram of a centrifugal fan coupled to a support;

FIG. 9 is one of the schematic structural views of the support member;

FIG. 10 is a second schematic view of a support structure;

FIG. 11 is a schematic view of a septum;

in the drawing the view of the figure,

100. a top cover; 110. an air outlet;

200. a chassis;

300. an evaporator; 310. a first heat exchange surface; 320. a second heat exchange surface; 330. a third heat exchange surface;

400. a centrifugal fan; 401. an air inlet end; 402. an air outlet end;

410. a front volute;

420. a rear volute;

430. a mounting part; 431. a first mounting surface;

500. a support;

510. an upper support part; 511. connecting the outer edges;

520. a lower support part;

530. a supporting stand; 531. a weight reducing port;

540. a bending part;

600. a grid member;

610. overlapping the outer edge;

620. an air delivery channel;

700. a middle partition plate;

710. and (5) an installation port.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; may be mechanically coupled, directly coupled, or indirectly coupled via an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.

The working components of the heat pump heater include a compressor, a four-way valve, an indoor heat exchanger, a throttling device, an evaporator 300, and the like.

The working principle is as follows: the high-temperature and high-pressure refrigerant is discharged to the water in the heating radiator through the compressor, the water in the radiator is circulated through the circulating pump to heat the indoor air to achieve the heating effect, the condensed refrigerant enters the evaporator 300 through the throttling device to evaporate and absorb the heat in the air, and the evaporated low-temperature and low-pressure refrigerant enters the compressor to be compressed into the high-temperature and high-pressure refrigerant and then is continuously discharged to the heat exchanger of the internal machine to circularly heat the water in the radiator until the water temperature reaches the set temperature.

The utility model provides a heat pump heater, wherein a fan for conveying air flow is designed as a centrifugal fan 400, the centrifugal fan 400 is a machine for improving the pressure of air and discharging the air by means of input mechanical energy, and the heat pump heater is driven fluid machinery.

Centrifugal fans 400 are widely used for ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and air induction of boilers and industrial kilns, cooling and ventilation in air conditioning equipment and household electrical appliances; drying and selecting grains; inflation and propulsion of wind tunnel wind source and air cushion ship, etc.

Because the centrifugal fan 400 is constructed to axially intake air and radially exhaust air, the air intake and exhaust positions are designed according to the characteristics of the centrifugal fan 400, and the placement positions of the centrifugal fan 400 and the positions of the air exhaust gratings are arranged, so that the space at the fan is reduced, the compactness and the miniaturization of equipment are facilitated, the arrangement of a compressor and a condenser is facilitated, and the size of the whole machine is reduced.

The specific structure of the heat pump heater with the centrifugal fan 400 will be described in detail as follows:

referring to fig. 1 to 3, the heat pump heater according to the present utility model includes an outer case including an installation cavity defined by a top cover 100, a bottom chassis 200, and side walls.

The evaporator 300 is disposed in the installation cavity between the top cover 100 and the bottom chassis 200, the bottom of the evaporator 300 is installed on the bottom chassis 200, and the top of the evaporator 300 is in contact connection with the top cover 100.

Referring to fig. 4, an air outlet 110 is formed in the top cover 100, a grill 600 is detachably mounted on the air outlet 110, and a plurality of air-delivery passages 620 are formed in the grill 600 for air flow.

Referring specifically to fig. 3, the air inlet end 401 of the centrifugal fan 400 faces the evaporator 300, and the air outlet end 402 of the centrifugal fan 400 is located directly below the air outlet 110.

The air flow is driven by the centrifugal fan 400, passes through the evaporator 300, exchanges heat with the refrigerant in the evaporator 300, and then is input into the centrifugal fan 400 from the air inlet end 401 of the centrifugal fan 400 and output from the air outlet end 402 of the centrifugal fan 400.

The centrifugal fan 400 is detachably mounted in the mounting cavity through the support 500, the support 500 is vertically fixed on the chassis 200, and the centrifugal fan 400 is fixed on top of the support 500.

Referring specifically to fig. 5, in some embodiments of the present utility model, the evaporator 300 includes a first heat exchange surface 310, a second heat exchange surface 320, and a third heat exchange surface 330, and the first heat exchange surface 310, the second heat exchange surface 320, and the third heat exchange surface 330 are integrally formed as a U-shaped evaporator 300 vertically installed between the top cover 100 and the bottom chassis 200.

Referring to fig. 3 again, air inlet ends 401 are formed on both sides of the centrifugal fan 400, and the air inlet ends 401 on both sides of the centrifugal fan 400 correspond to the first heat exchange surface 310 and the third heat exchange surface 330 respectively, so as to improve the air quantity flowing through the evaporator 300 and improve the heat exchange effect.

Referring to fig. 6 to 8, the centrifugal fan 400 includes a scroll case and a fan, the scroll case includes a front scroll case 410 and a rear scroll case 420, splice holes are formed at circumferential sides of the front scroll case 410 and the rear scroll case 420, and splice holes at corresponding positions of the front scroll case 410 and the rear scroll case 420 are detachably connected by fastening screws, respectively.

After the fan is started, the air flow is driven to move, a gap is formed between the air inlet end 401 on the evaporator 300 and the evaporator 300, and then the air flow is conveyed into the air inlet end 401 by the first heat exchange surface 310 and the second heat exchange surface 320 of the evaporator 300, so that the heat exchange area is greatly increased compared with that of a traditional axial flow fan.

Compared with the traditional axial flow fan, the installation angle of the centrifugal fan 400 can be adjusted, and the formed airflow can cover the first heat exchange surface 310 and the second heat exchange surface 320, so that the heat exchange efficiency is improved, and the working effect of the heat pump heater is improved.

The bottom of the centrifugal fan 400 is fixed on the support 500, and in order to improve the stability of connection, the centrifugal fan 400 is formed with a mounting portion 430, the centrifugal fan 400 is detachably connected with the support 500 through the mounting portion 430, the mounting portion 430 is formed with a mounting opening 710 having a downward opening, and an inclined first mounting surface 431 is formed in the mounting opening 710.

The angle of the first mounting surface 431 is 20 degrees, and of course, the angle of the first mounting surface 431 may be adjusted according to actual design and mounting requirements.

Referring to fig. 9 and 10, the supporter 500 includes an upper supporting portion 510, a lower supporting portion 520, and a supporting standing portion 530 between the upper supporting portion 510 and the lower supporting portion 520, and the supporter 500 is connected to the top cover 100 through the upper supporting portion 510 and is connected to the chassis 200 through the lower supporting portion 520.

In order to secure structural stability of the support 500, the upper support 510, the lower support 520, and the support stand 530 are integrally formed, and the upper support 510 and the lower support 520 are located on the same side of the support stand 530.

In order to reduce the overall weight of the support 500, the support standing portion 530 is provided with a weight reducing opening 531, so that the overall weight of the support 500 is reduced.

The support standing part 530 is formed with a bending part 540, and the extending direction of the bending part 540 is opposite to the upper and lower support parts 510 and 520.

The bending parts 540 are opposite to the upper and lower supporting parts 510 and 520, so that the stability of the supporter 500 is enhanced.

The upper support portion 510 is further formed at both sides thereof with a connection outer edge 511 extending obliquely upward, a second mounting surface adapted to the inclination angle of the first mounting surface 431 is formed on the connection outer edge 511, the connection outer edge 511 is mounted in the mounting opening 710, and the first mounting surface 431 is in contact connection with the second mounting surface.

In the mounted state, the bottom of the centrifugal fan 400 is in contact with the upper support portion 510, and at this time, the first mounting surface 431 and the second mounting surface are in contact connection, and the first mounting surface 431 and the second mounting surface are connected by a fastener such as a fastening bolt, so that the centrifugal fan 400 and the support 500 are connected and fixed.

In the conventional axial flow fan, the motor support is too long and extends from the chassis 200 to the upper end of the evaporator 300, so that the motor support vibrates more and uses more materials when the axial flow fan is operated.

In the present utility model, the overall length of the support 500 for supporting the centrifugal fan 400 is shortened, which is advantageous in reducing vibration, increasing rigidity, and saving materials.

The air outlet 110 on the top cover 100 is detachably connected with the grid piece 600, the periphery side of the grid piece 600 is provided with a lap joint outer edge 610, the periphery side of the air outlet 110 is provided with a lap joint inner edge, and the lap joint outer edge 610 is detachably connected with the lap joint inner edge of the air outlet 110 through a fastener.

The grille 600 is positioned on the top cover 100, and the whole grille 600 is smaller in size and saves materials on the premise of ensuring the air output.

Referring to fig. 11, the chassis 200 is further provided with working components such as a compressor and a throttle valve, a middle partition plate 700 is provided between the compressor and the centrifugal fan 400, and a mounting opening 710 is formed at the top of the middle partition plate 700 for mounting the electronic control box.

A gap is formed between the air outlet end 402 of the centrifugal fan 400 and the air outlet 110, so that heat generated in the working process of the electric control box and other components in the outer shell is taken away, and the whole heat pump heater is cooled.

The heat pump heater according to the present utility model, which conveys the airflow through the centrifugal fan 400, the centrifugal fan 400 is fixed on the chassis 200 through the support member 500, and compared with the axial flow fan, the centrifugal fan 400 has a smaller occupied space in the outer housing, which is advantageous for reducing the overall size of the heat pump heater, in addition to the lower height of the support member 500 for fixing the centrifugal fan 400, the overall rigidity of the support member 500 is increased, the vibration is reduced, the maintenance is reduced, and the noise is small.

In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely illustrative embodiments of the present utility model, and the scope of the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be covered by the present utility model, and the scope of the present utility model shall be defined by the appended claims.

Claims (10)

1. A heat pump heater, comprising:

the shell comprises an installation inner cavity surrounded by a top cover, a chassis and side walls, and an air outlet is formed in the top cover;

the evaporator is arranged in the installation cavity and positioned between the top cover and the chassis, and the evaporator is U-shaped;

a middle partition plate vertically connected between the top cover and the chassis;

the centrifugal fan is detachably mounted between the evaporator and the middle partition plate through a supporting piece, the air inlet end of the centrifugal fan faces the evaporator, and the air outlet end of the centrifugal fan is located right below the air outlet.

2. The heat pump heater of claim 1, wherein,

and the air outlet is detachably provided with a grid piece.

3. The heat pump heater of claim 2, wherein,

the periphery of grid spare is formed with overlap joint outer edge, overlap joint outer edge passes through the fastener and can dismantle the connection on the air outlet, centrifugal fan's air-out end with form the clearance between the air outlet.

4. The heat pump heater of claim 1, wherein,

the centrifugal fan is characterized in that a mounting part is formed on the centrifugal fan and used for being detachably connected with the supporting piece, a mounting opening with a downward opening is formed in the mounting part, and an inclined first mounting surface is formed in the mounting opening.

5. The heat pump heater of claim 4, wherein,

the support piece comprises an upper support part, a lower support part and a support vertical part positioned between the upper support part and the lower support part, wherein the support piece is connected with the top cover through the upper support part and is connected with the chassis through the lower support part, the upper support part, the lower support part and the support vertical part are integrally formed, and the upper support part and the lower support part are positioned on the same side of the support vertical part.

6. The heat pump heater of claim 5, wherein,

the support vertical part is provided with a weight reducing opening.

7. The heat pump heater of claim 5, wherein,

the support stand portion is formed with a bending portion, and the extending direction of the bending portion is opposite to that of the upper support portion and the lower support portion.

8. The heat pump heater of claim 5, wherein,

the two sides of the upper supporting part are also provided with connecting outer edges extending obliquely upwards, the connecting outer edges are provided with second mounting surfaces which are matched with the inclination angles of the first mounting surfaces, the connecting outer edges are arranged in the mounting openings, and the first mounting surfaces are in contact connection with the second mounting surfaces.

9. The heat pump heater of claim 1, wherein,

the centrifugal fan comprises a volute and a fan, wherein the volute comprises a front volute and a rear volute, and the front volute and the rear volute are detachably connected through fastening screws; air inlet ends are formed on two sides of the centrifugal fan.

10. The heat pump heater of claim 1, wherein,

the top of the middle partition plate is provided with an installation opening for installing the electric control box.