WO2016107164A1 - Main engine outer casing structure of air cooled heat pump unit - Google Patents

Abstract

Disclosed is a main engine outer casing structure of an air cooled heat pump unit, which belongs to the technical field of heat pumps. The main engine outer casing structure comprises a finned heat exchanger containing chamber (14) and a main engine containing chamber (15). A finned heat exchanger (7) is fixed in the finned heat exchanger containing chamber (14). The periphery of the finned heat exchanger containing chamber (14) is provided with a main air deflector (3) fixed on the air inlet side of the finned heat exchanger (7) and side air blocking mechanisms fixed at two ends of the finned heat exchanger (7). The lower part of the main air deflector (3) is provided with an air deflecting mechanism. An air vent is further arranged below the finned heat exchanger containing chamber (14). Exterior air passes through the air vent and the air deflecting mechanism, and then flows upwards and reaches the finned heat exchanger (7). By the air deflecting mechanism, the air input amount of the finned heat exchanger (7) can be guaranteed and at the same time, the air deflecting mechanism deflects air, reducing frosting of the finned heat exchanger (7), and improving the defrosting speed.

Description

 Main assembly structure of air-cooled heat pump unit  Main assembly structure of air-cooled heat pump unit

 Technical field

 The main casing structure of the air-cooled heat pump unit belongs to the technical field of heat pumps.

 Background technique

At present, most of the finned heat exchangers of the air source heat pump are in direct contact with the air. Even if the protective plate is installed, the air inlet of the fin heat exchanger is provided with ventilation holes on the protective plate, so that the purpose is not to block the wind. In the winter, the moisture in the air is easy to frost on the surface of the fin heat exchanger, especially in the north of China. There are many windy and hazy weathers, and the cold-air blown fin heat exchanger will quickly frost, and the defrosting is very difficult. After the frost is turned into water, it is easy to freeze again by the cold wind, and the defrosting time is extended. The current air source heat pump performs defrosting by reverse circulation, and changes the flow direction of the refrigerant during defrosting, and performs the fin heat exchanger. Heating to achieve the purpose of defrosting, usually need to use 15% to 20% The time to defrost, affecting the heating effect, reducing the comfort of the air conditioner, and increasing the power consumption. The inventors completely closed the air inlet side of the fin heat exchanger before the application, and the air entering through the lower part Reducing the frosting of the fin heat exchanger effectively solves the above problems, but as the series of products continues to increase, the fin heat exchanger has different requirements for the amount of intake air, and the present inventors propose to better meet the market demand. A new air-cooled heat pump unit mainframe structure.

 Summary of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a main casing structure of an air-cooled heat pump unit with a large air intake volume, stable main operation, reduced frosting of fin heat exchangers, and improved defrosting speed.

The technical solution adopted by the invention to solve the technical problem is: the main casing structure of the air-cooled heat pump unit, including the fin heat exchanger accommodating cavity and the main body accommodating cavity, and the fin heat exchanger is fixed in the fin heat exchanger capacity In the cavity, the main air plate fixed on the air inlet side of the fin heat exchanger and the side wind blocking mechanism fixed at the two ends of the fin heat exchanger are arranged around the cavity of the fin heat exchanger, and the main wind plate is fixed. The lower part is provided with an air guiding mechanism, and a vent is provided below the accommodating cavity of the fin heat exchanger, and the external air flows upward through the vent and the air guiding mechanism to reach the fin heat exchanger. The air guiding mechanism can ensure the air intake of the fin heat exchanger, ensure the stability of the main machine and ensure the heating effect. At the same time, the air guiding mechanism conducts the air to prevent the cold air in the winter from straightening the fin heat exchanger. Blowing, reducing the frosting of the fin heat exchanger, while the air guiding mechanism avoids the rapid heat dissipation during the defrosting of the fin heat exchanger, and improves the defrosting speed.

Preferably, the air guiding mechanism occupies at least one third of the area of the dominant air panel. This ensures the air intake of the fin heat exchanger and ensures stable operation of the fin heat exchanger.

Preferably, the lower end of the fin heat exchanger is supported on a support frame, the fin heat exchanger accommodating cavity is located above the support frame, the main body accommodating cavity is located below the support frame, and the air guiding mechanism is located on the upper side of the support frame. The main body accommodating chamber is provided with a ventilation mechanism on a side opposite to the air inlet side of the fin heat exchanger to constitute the vent. The main body accommodating cavity is located below the accommodating cavity of the fin heat exchanger, and the condenser and the compressor are fixed under the fin heat exchanger, occupying small space and convenient for installation.

Preferably, the air guiding mechanism is a dominant windshield louver, and the upper end of the blade of the leading windshield louver is inclined to the side of the fin heat exchanger. The blades of the leading windshield blinds allow the external air to tilt upward to reach the fin heat exchanger, avoiding direct blowing of the fin heat exchanger, and the leading windshield shutter structure is simple and beautiful.

 Preferably, the air guiding mechanism is a leading wind deflecting window, and the lower part of the leading wind deflecting window is inclined toward the outer side of the fin heat exchanger receiving cavity.

Preferably, the upper end of the main wind deflecting window is rotatably connected to the main wind deflector, and the lower part of the main wind deflecting window is disposed by the tilting of the supporting device. The main wind deflector window can be closed when the heat pump is not working, the dustproof effect is good, and the service life of the fin heat exchanger is improved.

Preferably, the ventilation mechanism is an air inlet louver, and an upper end of the blade of the air inlet louver is inclined toward an inner side of the main body accommodating cavity. The heat insulation effect can be further improved by the air inlet louver, and the external air enters the inside of the casing by the inlet louver and the leading wind louver, and flows upward to the fin heat exchanger, and the air inlet louver further prevents the air from flowing to the lower part of the fin heat exchanger. The heat is taken away, the insulation effect is improved, and the defrosting speed is increased.

 Preferably, the ventilation mechanism is an air intake reversal window, and the upper end of the air intake reversing window is hinged to the support frame, and the lower portion is inclined to the outside of the main body accommodation cavity.

Preferably, both ends of the main body accommodating cavity are provided with a closed side lower windshield, and the side lower windshield end is connected under the side wind damper. The fin heat exchanger is placed in a relatively closed environment through the side lower windshield to avoid air convection, further improve the heat preservation effect, reduce frosting, and increase the defrosting speed.

Preferably, the side windshield is a side louver. The side louver can prevent the air at both ends of the fin heat exchanger from forming convection, improve the heat preservation effect, reduce the frosting and increase the defrosting speed, and ensure the air intake of the fin heat exchanger.

 Compared with the prior art, the above technical solutions of the main casing structure of the air-cooled heat pump unit have the following beneficial effects:

 1 The air guiding mechanism can ensure the air intake of the fin heat exchanger, ensure the stability of the main machine, ensure the heating effect, and the air guiding mechanism conducts the air to prevent the cold air in the winter from being applied to the fin heat exchanger. Direct blowing reduces the frosting of the fin heat exchanger, while the air guiding mechanism avoids the rapid dissipation of heat during the defrosting of the fin heat exchanger and improves the defrosting speed.

 2 The air guiding mechanism occupies at least one-third of the area of the dominant wind plate, which can ensure the air intake of the fin heat exchanger and ensure the stable operation of the fin heat exchanger.

 3 The air guiding mechanism is the leading windshield louver. The blades of the leading windshield louver cause the external air to tilt upward to reach the fin heat exchanger, avoiding direct blowing of the fin heat exchanger, and the leading wind louver structure is simple and beautiful.

 4 A closed side lower windshield is fixed at both ends of the main body receiving cavity under the side windshield mechanism, and the fin heat exchanger is placed in a relatively closed environment through the side lower windshield to avoid air convection. Further improve the insulation effect, reduce frosting and increase the speed of defrosting.

 DRAWINGS

 Fig. 1 is a perspective view showing the structure of the main body casing of the air-cooled heat pump unit.

 Figure 2 is a three-dimensional structure diagram of the rear of the main casing structure of the air-cooled heat pump unit of Figure 1.

 Fig. 3 is a side view showing the internal structure of the main casing structure of the air-cooling heat pump unit of Fig. 1.

 Fig. 4 is a perspective view showing the structure of the main casing structure of the air-cooled heat pump unit.

 Fig. 5 is a schematic structural view of Embodiment 3 of the main casing structure of the air-cooled heat pump unit.

 Fig. 6 is a schematic structural view of Embodiment 4 of the main casing structure of the air-cooled heat pump unit.

 Fig. 7 is a schematic structural view of Embodiment 5 of the main casing structure of the air-cooled heat pump unit.

 Fig. 8 is a schematic structural view of Embodiment 6 of the main casing structure of the air-cooled heat pump unit.

 Among them: 1, top plate; 2, fan; 3, leading wind plate; 301, leading wind shutters; 302 4, the leading windshield window; 5, the side blinds; 6, the side lower windshield; 7, the fin heat exchanger; 8, the support frame; 9, the condenser; 10, the compressor; , side windshield; 12, wind inversion window; 13, linkage mechanism; 14, fin heat exchanger accommodating cavity; 15, host receiving cavity.

 detailed description

 1 to 3 are preferred embodiments of the main casing structure of the air-cooled heat pump unit, and the present invention will be further described below with reference to Figs.

 Referring to Figures 1 to 8, the main casing structure of the air-cooled heat pump unit includes a fin heat exchanger accommodating chamber 14 and a main body accommodating chamber. The fin heat exchanger 7 is fixed in the fin heat exchanger accommodating chamber 14, and the main fin panel 3 fixed on the air inlet side of the fin heat exchanger 7 is disposed around the fin heat exchanger accommodating chamber 14 and Fixed to fin heat exchanger 7 The side windshield mechanism at both ends is provided with an air guiding mechanism at the lower part of the main air deflector 3, and a venting port is arranged below the fin heat exchanger accommodating cavity 14, and the external air flows upward through the venting port and the air guiding mechanism. And reach the fin heat exchanger 7. The air guiding mechanism can ensure the air intake of the fin heat exchanger 7, ensure the stability of the main machine, ensure the heating effect, and the air guiding mechanism guides the air to prevent the cold air from blowing heat to the fins in winter. 7 Direct blowing is performed to reduce the frosting of the fin heat exchanger. At the same time, the air guiding mechanism avoids the rapid dissipation of heat during defrosting and increases the defrosting speed. The main unit accommodating chamber 15 is equipped with a compressor 10, a condenser 9 and / Or other heat exchanger components, the number of compressors 10, condensers 9, and other heat exchanger components in the present invention is not limited.

 Preferably, the air guiding mechanism has at least one third of the area of the dominant wind plate, and the leading wind plate 3 The other parts are closed, which ensures the air intake of the fin heat exchanger 7, and further, the air guiding mechanism occupies the dominant wind deflector 3 The area should be less than or equal to one-half, which can improve the insulation effect, reduce the frosting, and increase the defrosting speed. Of course, the air guiding mechanism can also cover the entire main wind deflector 3 .

 The invention will be further described below in conjunction with specific embodiments.

 Example 1

 Referring to Fig. 1, the air guiding mechanism in this embodiment is a main windshield louver 301 disposed at a lower portion of the main wind deflector 3. By adopting the windshield louver 301, the air intake amount of the fin heat exchanger 7 can be effectively improved, and the structure is simple and beautiful. Upper end finned fin heat exchanger for leading windshield 301 7 The one side is inclined so that the outside air is inclined upward to reach the fin heat exchanger 7, avoiding the direct blowing of the fin heat exchanger 7, and the leading end of the blade of the main windshield 301 is fixedly connected to the main wind deflector 3 And the preferred tilt angle is 20 to 30 °. An air inlet louver 4 is provided below the main wind deflector 3 to form a vent through the air inlet blinds 4 The heat insulation effect can be further improved, and the outside air enters the inside of the casing by the inlet louver 4 and the leading windshield 301, and flows upward to the fin heat exchanger 7 and the air inlet louver 4 Further preventing the air flow from taking away the heat in the lower portion of the fin heat exchanger 7, improving the heat preservation effect and increasing the defrosting speed.

 Preferably, the dominant windshield 301 occupies one third of the area of the dominant wind deflector, the dominant wind deflector 3 The upper part is a sealed structure. It has been confirmed by a large number of experiments that one third of the main windshield louvers 301 are provided in the lower part of the main wind deflector 3 to provide sufficient air for the fin heat exchanger 7 to ensure the fin heat exchanger 7 Stable work, while leading the windshield 3 upper seal can effectively reduce the fin heat exchanger 7 frosting, improve the defrosting speed.

 The side windshield is a side louver 5, and the side louver 5 can prevent the fin heat exchanger 7 The air at both ends forms convection, which improves the heat preservation effect, reduces frosting and increases the defrosting speed, while ensuring the air intake amount of the fin heat exchanger 7. Side blinds 5 and main windshield 3 The enclosure forms a rectangular receiving space, and the fin heat exchanger 7 is fixed in the accommodating space. The side louver 5 and the upper end of the main wind deflector 3 are fixed with a top plate 1, and the fan 1 is fixed on the top plate 1.

 Referring to Figures 1 to 2, a side lower windshield 6 is fixed below the side louver 5, and a side lower windshield 6 is passed. Further improving the heat preservation effect, reducing the frosting and increasing the defrosting speed, the main pipe is extended from the side lower windshield 6 on one side.

 Referring to Fig. 3, the fin heat exchanger 7 in this embodiment is a V-shaped heat exchanger, and the lower end of the fin heat exchanger 7 is supported by a support frame 8 The fin heat exchanger accommodating cavity 14 is located above the support frame 8, and the main body accommodating cavity 15 is located below the support frame 8, and the air inlet louver 4 and the side lower windshield 6 are enclosed in the main body accommodating cavity 15 Around, the air guiding mechanism is located on the upper side of the support frame 8, and the main body receiving cavity 15 is in the fin heat exchanger 7 The ventilating opening is formed on the opposite side of the air inlet side to form the venting port, and the structure is compact, the installation is convenient, and the occupied space is small.

 Example 2

 Referring to Fig. 4, the difference between this embodiment and the embodiment 1 is that the side windshield mechanism is a side windshield fixed to both ends of the fin heat exchanger 7. Through the side windshield 11 , the fin heat exchanger 7 can be better insulated, the side windshield 11 and the lower lower windshield 6 A sun plate can be used, the sun plate is used to facilitate the sunlight to enter the outer casing, and the temperature of the fin heat exchanger 7 is increased by solar energy to reduce frosting and increase the defrosting speed. Other structures are the same as in the first embodiment.

 Example 3

 Referring to Fig. 5, the difference between this embodiment and the embodiment 1 or 2 is that the ventilation mechanism is the air inlet reversing window 12, and the air inlet reversing window 12 The upper end is hinged to the support frame 8, and the lower part is inclined outwardly. Preferably, the lower part of the air intake flap window 12 is supported on the frame by the link mechanism 13. When the heat pump is working, the air inlet flap window 12 is opened for the fin change. Heater 7 Provide air. When the heat pump is not working, close the air inlet flap window 12, the dustproof effect is good, and the overall structure is beautiful. Of course, the inlet flapping window 12 can also be fixed at an angle to the fixed connection to the frame, and the linkage mechanism 13 It can also be replaced by a pneumatic rod. Other structures are the same as in the embodiment 1 or 2.

 Example 4

 Referring to FIG. 6, the air guiding mechanism in this embodiment is a dominant wind deflecting window 302, and a leading wind deflecting window 302. The lower portion is inclined outwardly, and the main wind deflecting window 302 may be fixed at an angle fixedly attached to the frame or the main wind deflector 3, or may be the upper end of the main wind deflecting window 302 being rotatably connected to the main wind deflector 3 The lower part of the main wind deflecting window 302 is closed by the supporting device, and the main wind deflecting window 302 can be closed when the heat pump is not working, and the dustproof effect is good, and the fin heat exchanger is improved. The service life. The other structure is the same as in the embodiment 1 or 2 or 3.

 Example 5

 Referring to Fig. 7, the fin heat exchanger 7 in this embodiment is vertically fixed in the fin heat exchanger accommodating chamber 14, and the fan 2 Fixed to the other side of the finned heat exchanger 7 opposite the main wind deflector 3, the lower portion of the main wind deflector 3 is provided with an air guiding device, which may be the main windshield louver 301 shown in the drawing. It may also be a dominant wind deflector window 302. The ventilation mechanism below the main wind deflector 3 may be an air inlet flap window 12 or an air inlet blind window 4 . The other structure is the same as in the embodiment 1.

 Example 6

 Referring to Fig. 8, in the present embodiment, the main wind deflecting window 302 and the wind inverting window 12 on the main wind deflector 3 are For the integrated structure, the main wind deflecting window 302 and the air inverting window 12 can be fixed at an angle or can be rotated. Other structures are the same as the above embodiments.

 The present invention can also adopt the following structure.

 The main body accommodating cavity 15 may be a front and rear side opening, a closed end arrangement, or a setting that is open all around, so as to be in the main wind deflector 3 A vent is formed below the outside, and the outside air flows upward through the vent and the air guiding mechanism to reach the fin heat exchanger 7 .

 Main windshield blinds 301, air intake blinds 4 and side blinds 5 The blades can be pivoted and can be adjusted manually or automatically by the angle of the blades as well as opening and closing.

 The number of fans 2 in the present invention is based on the fin heat exchanger 7 The need for setting is not limited to the examples given in the embodiments of the present invention. A closed side lower windshield 6 may be provided at one end of the main body accommodating chamber 15, and the other end is open.

 The invention may be any combination of the above.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art may use the above-disclosed technical contents to change or modify the equivalent equivalent. Example. However, any simple modifications, equivalent changes and modifications made to the above embodiments in accordance with the technical spirit of the present invention are still within the scope of protection of the technical solutions of the present invention.

Claims (17)

1. The utility model relates to a main casing structure of an air-cooled heat pump unit, which comprises: a fin heat exchanger accommodating chamber (14) and a main body accommodating chamber (15), and the fin heat exchanger (7) is fixed on the fin heat exchanger In the accommodating cavity (14), the main air plate (3) fixed on the air inlet side of the fin heat exchanger (7) and the heat exchange fixed on the fin are arranged around the fin heat exchanger accommodating cavity (14). a side windshield mechanism at both ends of the device (7), an air guiding mechanism is arranged at a lower portion of the main air guiding plate (3), and a venting port is provided below the fin heat exchanger accommodating cavity (14), and the external air is provided. After passing through the vent and air guiding mechanism, it flows upward and reaches the fin heat exchanger (7).
2. The main body casing structure of an air-cooled heat pump unit according to claim 1, wherein the air guiding mechanism occupies at least one third of an area of the main air plate (3).
3. The air-cooling heat pump unit main body casing structure according to claim 1, wherein the lower end of the fin heat exchanger (7) is supported on a support frame (8), and the fin heat exchanger accommodating chamber (14) ) is located above the support frame (8), the main body receiving cavity (15) is located below the support frame (8), the air guiding mechanism is located on the upper side of the support frame (8), and the main body receiving cavity (15) is in heat exchange with the fins. A side of the air inlet side of the device (7) is provided with a ventilation mechanism to constitute the vent.
4. The main body casing structure of an air-cooled heat pump unit according to claim 1, wherein the air guiding mechanism is a main windshield louver (301), and the upper end of the wind deflecting louver (301) is a finned heat exchanger. (7) One side tilt setting.
5. The main body casing structure of an air-cooled heat pump unit according to claim 2, wherein the air guiding mechanism is a main windshield louver (301), and the upper end of the wind deflecting louver (301) is a finned heat exchanger. (7) One side tilt setting.
6. The main body casing structure of an air-cooled heat pump unit according to claim 3, wherein the air guiding mechanism is a main windshield louver (301), and the upper end of the wind deflecting louver (301) is a finned heat exchanger. (7) One side tilt setting.
7. The air-cooling heat pump unit main body casing structure according to claim 1, wherein the air guiding mechanism is a main wind deflecting window (302), and the leading wind deflecting window (302) is a lower fin-to-fin heat exchanger. The setting of the outer side of the accommodation chamber (14) is inclined.
8. The main body casing structure of the air-cooled heat pump unit according to claim 7, wherein the upper end of the main wind deflector window (302) is rotatably connected to the main wind plate (3), and the main wind deflecting window (302) The lower part is set by the tilting of the support device.
9. The main body casing structure of an air-cooled heat pump unit according to claim 2, wherein the air guiding mechanism is a main wind deflecting window (302), and the leading wind deflecting window (302) is a lower fin heat exchanger. The setting of the outer side of the accommodation chamber (14) is inclined.
10. The main body casing structure of the air-cooled heat pump unit according to claim 9, wherein the upper end of the main wind deflector window (302) is rotatably connected to the main wind plate (3), and the main wind deflecting window (302) The lower part is set by the tilting of the support device.
11. The air-cooling heat pump unit main body casing structure according to claim 3, wherein the air guiding mechanism is a main wind deflecting window (302), and the leading wind deflecting window (302) is a lower fin-to-fin heat exchanger. The setting of the outer side of the accommodation chamber (14) is inclined.
12. The main body casing structure of the air-cooled heat pump unit according to claim 11, wherein an upper end of the main wind deflecting window (302) is rotatably connected to the main wind plate (3), and the main wind deflecting window (302) The lower part is set by the tilting of the support device.
13. The air-cooling heat pump unit main body casing structure according to claim 3, wherein the ventilation mechanism is an air inlet louver (4), and the upper end of the air inlet louver (4) is inclined toward the inner side of the main body accommodating chamber (15). Settings.
14. The air-cooling heat pump unit main body casing structure according to claim 3, wherein the ventilation mechanism is an air inlet reversing window (12), and the upper end of the air inlet reversing window (12) is hinged to the support frame (8), and the lower portion is The setting of the outer side of the main body housing cavity (15) is inclined.
15. The main body casing structure of the air-cooled heat pump unit according to claim 3, characterized in that: the two sides of the main body accommodating chamber (15) are provided with a closed side lower windshield (6) and a side lower windshield (6). The upper end is connected below the side windshield mechanism.
16. The air-cooling heat pump unit main body casing structure according to claim 1, wherein the side windshield mechanism is a side louver (5).
17. The main body casing structure of an air-cooled heat pump unit according to claim 15, wherein the side windshield mechanism is a side louver (5).