Defrosting device for low-temperature air energy heat pump

Abstract

The utility model relates to a defrosting device for a low-temperature air energy heat pump, which comprises a heat pump main body, a defrosting structure is arranged outside the heat pump main body, the defrosting structure comprises a mounting block, the mounting block is fixedly mounted on the outer surface of the heat pump main body, a threaded rod is rotatably connected in the mounting block, and the threaded rod is fixedly connected with the heat pump main body. And a driving motor is fixedly mounted at the top of the mounting block, and the outer surface of the threaded rod is in threaded connection with a U-shaped block. According to the defrosting device for the low-temperature air energy heat pump, through the arrangement of the defrosting structure, the front face of the heat pump body is scraped and cleaned through a cleaning plate, so that frost on the surface is cleaned, meanwhile, hot air is manufactured and sprayed out through an air nozzle, the outer surface of the heat pump body is heated, and drying is conducted while defrosting is conducted; and freezing on the outer surface caused by pure water drops is avoided, so that the heat pump main body is subjected to quick defrosting operation by simultaneously performing two groups of modes of scraping and heating.

Description

TECHNICAL FIELD

[0001] The utility model relates to air energy heat pump defrosting device technical field, concretely is a defrosting device for low temperature air energy heat pump. BACKGROUND

[0002] Air energy heat pump is a kind of device using the energy in air to generate heat energy, it is mainly applied to water heater, air-cooled unit, dryer etc. field, with environmental protection energy saving, safe and comfortable, durable etc. Advantage.

[0003] In the use process, the temperature of air energy heat pump will reduce with the ambient temperature, thereby leading to surface frost, frost will influence the influence heat exchange efficiency of heat pump evaporator, to reduce the heating performance of heat pump, thus need defrosting device defrosting, therefore a defrosting device for low temperature air energy heat pump is presented. UTILITY MODEL CONTENTS

[0004] In view of the deficiency of prior art, the utility model provides a defrosting device for low temperature air energy heat pump, has the advantages such as quick defrosting, solves the problem that frost leads to air energy heat pump cannot be normally used.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a defrosting device for low temperature air energy heat pump, including heat pump main body, the outside of heat pump main body is provided with defrosting structure;

[0006] The defrosting structure includes mounting block, the outer surface of heat pump main body is fixedly installed with mounting block, the inside of mounting block is rotatably connected with threaded rod, the top of mounting block is fixedly installed with drive motor, the outer surface of threaded rod is threadedly connected with U-shaped block, the back of U-shaped block is fixedly installed with air nozzle, the inside of U-shaped block is movably connected with cleaning plate, the bottom of heat pump main body is fixedly installed with heating box, the inner bottom wall of heating box is fixedly installed with fan, the inner top wall of heating box is fixedly installed with electric heating rod, the top of heat pump main body is fixedly installed with heat transfer plate, the inside of heat transfer plate is fixedly installed with electric heating wire.

[0007] Further, the number of mounting blocks is two, two mounting blocks are located at the left and right sides of heat pump main body respectively, the inside of one mounting block is rotatably connected with threaded rod, the inside of another mounting block is fixedly installed with auxiliary rod, the inside of U-shaped block is slidably connected with the outer surface of auxiliary rod.

[0008] Further, the top of threaded rod penetrates the inner top wall of mounting block and is fixedly connected with the output end of drive motor, the inside of U-shaped block is provided with hot air chamber, the back of U-shaped block is fixedly installed with several air nozzles.

[0009] Further, the inside of the U-shaped block is provided with a plug-in slot matched with the cleaning plate, the back surface of the cleaning plate is attached to the front surface of the heat pump body, the front surface of the cleaning plate is fixedly installed with a handle, the front surface of the cleaning plate is threadedly connected with two bolts, and the inside of the U-shaped block is provided with threaded holes matched with the bolts.

[0010] Further, the front surface of the fan is fixedly installed with an air inlet pipe, the right side of the air inlet pipe is fixedly installed with a filter screen, the left side of the fan is fixedly installed with an air outlet pipe, and the inner top wall of the heating box is fixedly installed with three electric heating rods.

[0011] Further, the back surface of the heating box is fixedly connected with the back surface of the heat transfer plate through a heat preservation pipe, and the bottom of the heat transfer plate is fixedly connected with the top of the U-shaped block through an elastic hose.

[0012] Beneficial effects

[0013] Compared with the prior art, the technical scheme has the following beneficial effects:

[0014] The defrosting device for the low-temperature air energy heat pump is provided with the defrosting structure, the front surface of the heat pump body is scraped and cleaned by the cleaning plate, so that the surface frost is cleaned, hot air is generated and sprayed through the air nozzle to heat the outer surface of the heat pump body, the defrosting and drying are simultaneously performed, the water droplets are avoided to cause the icing on the outer surface, the scraping and heating are simultaneously performed, and the heat pump body is quickly defrosted. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front structure schematic view of the utility model;

[0016] Figure 2 It is a local three-dimensional structure schematic view of the utility model;

[0017] Figure 3 It is a front cross-section structure schematic view of the utility model;

[0018] Figure 4 It is a local side cross-section structure schematic view of the utility model.

[0019] In the drawing: 1, heat pump body; 2, defrosting structure; 201, mounting block; 202, threaded rod; 203, driving motor; 204, U-shaped block; 205, air nozzle; 206, cleaning plate; 207, heating box; 208, fan; 209, electric heating rod; 210, heat transfer plate; 211, electric heating wire. DETAILED DESCRIPTION

[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0021] Please refer to Figures 1-4 The low-temperature air energy heat pump defrosting device comprises a heat pump body 1, and a defrosting structure 2 is arranged outside the heat pump body 1.

[0022] The defrosting structure 2 comprises a mounting block 201, the outer surface of the heat pump body 1 is fixedly provided with the mounting block 201, a threaded rod 202 is rotatably connected to the inside of the mounting block 201, a driving motor 203 is fixedly installed on the top of the mounting block 201, a U-shaped block 204 is threadedly connected to the outer surface of the threaded rod 202, a wind nozzle 205 is fixedly installed on the back of the U-shaped block 204, a cleaning plate 206 is movably connected to the inside of the U-shaped block 204, a heating box 207 is fixedly installed on the bottom of the heat pump body 1, a fan 208 is fixedly installed on the inner bottom wall of the heating box 207, an electric heating rod 209 is fixedly installed on the inner top wall of the heating box 207, a heat transfer plate 210 is fixedly installed on the top of the heat pump body 1, and an electric heating wire 211 is fixedly installed in the heat transfer plate 210.

[0023] Specifically, as shown in Figure 3 The driving motor 203 is turned on to drive the threaded rod 202 to rotate, the threaded rod 202 drives the U-shaped block 204 to move in the mounting block 201 along the auxiliary rod, the movement of the U-shaped block 204 drives the cleaning plate 206 and the wind nozzle 205 to move, thereby the movement of the cleaning plate 206 preliminarily defrosts the front surface of the heat pump body 1, then the electric heating rod 209 and the electric heating wire 211 are turned on, then the fan 208 is turned on to send the air outside into the heating box 207 to be preliminarily heated by the electric heating rod 209, and the air is sent into the heat transfer plate 210 through the heat preservation pipe to be secondarily heated by the electric heating wire 211, then the air is sprayed out through the wind nozzle 205, thereby the hot air heats and dries the outer surface of the heat pump body 1 to perform the secondary defrosting operation, and the residual water droplets are frozen, thereby achieving the purpose of facilitating defrosting.

[0024] Specifically, as shown in Figure 2As shown, the cleaning plate 206 is arranged in a detachable structure, when it is not needed to use or need to carry out individual maintenance or repair of the cleaning plate 206, only need to take down two screws, then pull the handle can be extracted from the inside of the U-shaped block 204 206, clean or maintain, then clean up and maintenance is completed again 206 inserted into the inside of the U-shaped block 204, and then through two bolts can be fixed, so as to ensure the cleaning effect of the cleaning plate 206 good purpose.

[0025] Specifically, as shown in Figure 3 The drive motor 203 is a positive and negative motor, which means that it can realize positive and negative rotation. The working principle of the positive and negative motor is based on changing the phase sequence of the motor power to realize the change of the rotation direction. In a three-phase asynchronous motor, the rotation direction of the motor can be changed by adjusting any two phases. This operation is called phase conversion, which allows the motor to run in different directions as needed.

[0026] Specifically, as shown in Figure 2 The electric heating rod 209 is an electric heating element, usually made of resistance wire wound on an insulating material. When an electric current passes through the resistance wire, heat will be generated due to the resistance of the wire, causing the temperature of the electric heating rod 209 to rise. At the same time, the electric heating rod 209 will also transfer this heat to the surrounding air, causing the temperature of the surrounding air to rise.

[0027] Specifically, as shown in Figure 2 The working principle of the electric heating wire 211 is based on the electric heating effect, that is, when an electric current passes through a conductor, heat will be generated. Specifically, when the electric heating wire 211 is connected to the power supply, the electric current begins to flow through the conductor. According to Joule's law, the electric current will generate heat when it passes through the conductor, thereby causing the electric heating wire 211 to heat up. These heat is then transferred to the surrounding environment through conduction, convection and radiation, achieving the purpose of heating or warming.

[0028] Specifically, as shown in Figure 3 The fan 208 is mainly composed of impeller, casing, air inlet, air outlet, motor and other key components. Its working principle is to drive the impeller to rotate by the motor, so as to transfer mechanical energy to air or other gas, making the gas obtain kinetic energy and produce flow. Specifically, when the motor starts, the impeller begins to rotate, forming a negative pressure area, which sucks external gas into the casing. Then the gas obtains energy under the action of the impeller and is discharged from the air outlet, thereby achieving the purpose of ventilation, air exchange or gas conveying.

[0029] In implementation, the following steps are taken:

[0030] 1) first open the drive motor 203 drive screw rod 202 rotation, through the rotation of the screw rod 202 drive U block 204 along the auxiliary rod and mounting block 201 inside the move;

[0031] 2) then through the installation block 201 drive cleaning plate 206 and the tuyere 205 move, through the cleaning plate 206 on the heat pump main body 1 preliminary defrosting operation;

[0032] 3) open the fan 208 again into the heating box 207 air, after the electric heating rod 209 preliminary heating into the heat transfer plate 210;

[0033] 4) finally through the heat transfer plate 210 secondary heating after sending into the U block 204 inside, and by tuyere 205, for secondary defrosting operation.

[0034] In summary, the low temperature air energy heat pump defrosting device, through the defrosting structure 2 is set, first through the cleaning plate on the front of the heat pump main body 1 is scraped down, so as to remove the frost on the surface, at the same time, again through the manufacture of hot air and through the tuyere 205 spray, the heat pump main body 1 outer surface is heated, in defrosting at the same time drying, avoid pure in water droplets lead to ice on the surface, so as to scrape and heating two groups of way at the same time, for the heat pump main body 1 defrosting operation fast.

[0035] It should be noted that in this text, such as first and second relationship terms, only to distinguish one entity or operation with another entity or operation, and does not necessarily require or imply that there is any such actual relationship or order between the entity or operation. Moreover, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements, not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent in such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0036] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A defrosting device for low-temperature air energy heat pumps, comprising a heat pump body (1), characterized in that: The defrosting structure (2) is arranged outside the heat pump body (1); The defrosting structure (2) comprises a mounting block (201), the outer surface of the heat pump body (1) is fixedly provided with the mounting block (201), the inside of the mounting block (201) is rotatably connected with a threaded rod (202), the top of the mounting block (201) is fixedly provided with a driving motor (203), the outer surface of the threaded rod (202) is threadedly connected with a U-shaped block (204), the back of the U-shaped block (204) is fixedly provided with a wind nozzle (205), the inside of the U-shaped block (204) is movably connected with a cleaning plate (206), the bottom of the heat pump body (1) is fixedly provided with a heating box (207), the inner bottom wall of the heating box (207) is fixedly provided with a fan (208), the inner top wall of the heating box (207) is fixedly provided with an electric heating rod (209), the top of the heat pump body (1) is fixedly provided with a heat transfer plate (210), and the inside of the heat transfer plate (210) is fixedly provided with an electric heating wire (211).

2. A defrosting device for a low-temperature air energy heat pump according to claim 1, characterized in that: The number of the mounting blocks (201) is two, and the two mounting blocks (201) are respectively arranged on the left and right sides of the heat pump body (1), one mounting block (201) is rotatably connected with a threaded rod (202) in the inside, and the other mounting block (201) is fixedly provided with an auxiliary rod in the inside, and the inside of the U-shaped block (204) is slidably connected with the outer surface of the auxiliary rod.

3. A defrosting device for a low-temperature air energy heat pump according to claim 1, characterized in that: The top of the threaded rod (202) penetrates through the inner top wall of the mounting block (201) and is fixedly connected with the output end of the driving motor (203), the inside of the U-shaped block (204) is provided with a hot air chamber, and the back of the U-shaped block (204) is fixedly provided with a plurality of wind nozzles (205).

4. A defrosting device for a low-temperature air energy heat pump according to claim 1, characterized in that: The inside of the U-shaped block (204) is provided with a plug-in groove matched with the cleaning plate (206), the back of the cleaning plate (206) is attached to the front surface of the heat pump body (1), the front surface of the cleaning plate (206) is fixedly provided with a handle, the front surface of the cleaning plate (206) is threadedly connected with two bolts, and the inside of the U-shaped block (204) is provided with a threaded hole matched with the bolt.

5. A defrosting device for a low-temperature air energy heat pump according to claim 1, characterized in that: The front surface of the fan (208) is fixedly provided with an air inlet pipe, the right side of the air inlet pipe is fixedly provided with a filter screen, the left side of the fan (208) is fixedly provided with an air outlet pipe, and the inner top wall of the heating box (207) is fixedly provided with three electric heating rods (209).

6. A defrosting device for a low-temperature air energy heat pump according to claim 1, characterized in that: The back of the heating box (207) is fixedly connected with the back of the heat transfer plate (210) through a heat preservation pipe, and the bottom of the heat transfer plate (210) is fixedly connected with the top of the U-shaped block (204) through an elastic hose.

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