Defrosting device for air conditioner refrigeration

By introducing a moving component and a buffer component into the air conditioner defrosting device, and using a stepper motor to drive the lead screw to move the brush plate and combine it with a buffer rod for cushioning, the problem of slow defrosting speed in existing defrosting devices is solved, achieving a fast and effective defrosting effect and protecting the air conditioner heat exchanger.

CN224261834UActive Publication Date: 2026-05-19BEIJING HONGYUXUAN CONSTRUCTION ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING HONGYUXUAN CONSTRUCTION ENGINEERING CO LTD
Filing Date
2025-03-14
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing air conditioner defrosting devices have poor defrosting performance, especially electric heating defrosting, which is slow and cannot quickly defrost physically, affecting the normal operation of the air conditioner.

Method used

The design incorporates moving and buffer components, including a stepper motor driving a lead screw to move the brush plate left and right, combined with a buffer rod and spring buffer to ensure smooth contact between the brush plate and the air conditioner heat exchanger, achieving rapid defrosting.

Benefits of technology

It improves defrosting speed, prevents hard damage to the brush plate and heat exchanger, and ensures normal operation of the air conditioner.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a defrosting device for air conditioner refrigeration, and relates to the field of air conditioner defrosting devices. A defrosting device for air conditioner refrigeration comprises an air conditioner outdoor unit, an air conditioner heat exchanger is fixedly connected to the interior of the air conditioner outdoor unit, a shell is fixedly connected to the upper end of the interior of the air conditioner outdoor unit, an outer shell is arranged below the shell, a brush plate is arranged on the rear side of the outer shell, and the rear side of the brush plate makes contact with the front side of the air conditioner heat exchanger. The device comprises a shell, a brush plate, a moving assembly and a buffering assembly, the moving assembly is located in the shell and used for driving the brush plate to move left and right, and the buffering assembly is located in the shell and used for buffering the brush plate. The technical problems that an existing defrosting device is poor in defrosting effect, when people conduct defrosting on an air conditioner outdoor unit, an electric heating mode is often adopted for dehumidification, the heating and defrosting speed is low, and rapid physical defrosting cannot be conducted are solved.
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Description

Technical Field

[0001] This utility model relates to the field of air conditioner defrosting devices, and in particular to a defrosting device for air conditioner refrigeration. Background Technology

[0002] When an air conditioner is in heating mode, the outdoor unit's heat exchanger is in an absorbing state. This causes moisture and dust from the surrounding air to condense on the coils of the heat exchanger, clogging the heat exchange gaps between the coils. If not cleaned in time, the outdoor unit will experience insufficient heat exchange, affecting the normal operation of the air conditioner and even causing the compressor to fail. Specifically, the outdoor unit's compressor compresses the refrigerant. The compressed, high-temperature gaseous refrigerant flows into the indoor unit, releasing heat to supply hot air to the user. At the same time, the refrigerant condenses and liquefies into a low-temperature liquid state. This low-temperature liquid refrigerant flows from the indoor unit into the outdoor unit, where it absorbs heat from the outdoor environment through evaporation in the outdoor unit's heat exchanger. This lowers the temperature of the heat exchanger and the surrounding environment. The temperature of the outer surface of the heat exchanger is usually below 0 degrees Celsius. When the external humidity is high, frost often forms, requiring the use of a defrosting device.

[0003] However, existing technologies have some problems: existing defrosting devices have poor defrosting effects. When people defrost the outdoor unit of an air conditioner, they often use electric heating to dehumidify, which is slow and cannot perform rapid physical defrosting, making it inconvenient for people to use. Therefore, it is necessary to provide a defrosting device for air conditioning to solve the above-mentioned technical problems. Utility Model Content

[0004] This utility model provides a defrosting device for air conditioning, which solves the technical problems of existing defrosting devices having poor defrosting effect, and when people defrost the outdoor unit of the air conditioner, they often use electric heating to dehumidify, which is slow and cannot perform rapid physical defrosting.

[0005] To solve the above-mentioned technical problems, this utility model provides a defrosting device for air conditioning refrigeration, comprising:

[0006] An air conditioner outdoor unit has an air conditioner heat exchanger fixedly connected inside it. A housing is fixedly connected to the upper part of the air conditioner outdoor unit. An outer shell is provided below the housing. A brush plate is provided on the rear side of the outer shell. The rear side of the brush plate contacts the front side of the air conditioner heat exchanger.

[0007] A moving component and a buffer component are provided. The moving component is located in the housing and is used to drive the left and right movement of the brush plate. The buffer component is located in the outer shell and is used to cushion the brush plate.

[0008] Preferably, the moving component includes a stepper motor, the output end of which is fixedly connected to a lead screw, and the surface of the lead screw is threaded with a threaded block.

[0009] Preferably, the lower end of the threaded block is fixedly connected to a fixing post, and the lower end of the fixing post extends through to the lower end of the housing and is fixedly connected to the upper end of the outer shell.

[0010] Preferably, the buffer assembly includes a spring, one end of which is fixedly connected to a buffer rod, and one end of the buffer rod extends through the outer casing and is fixedly connected to one side of the brush plate.

[0011] Preferably, one end of the lead screw is fitted with a bearing seat, and one side of the bearing seat is fixedly connected to one side of the housing.

[0012] Preferably, a guide block is fixedly connected to the lower end of the outer casing, and a guide rod is slidably connected inside the guide block. The guide rod is laterally fixedly connected to the outdoor unit of the air conditioner.

[0013] Compared with related technologies, the defrosting device for air conditioning provided by this utility model has the following beneficial effects:

[0014] This utility model provides a defrosting device for air conditioning refrigeration. By setting the bearing seat, the lead screw can rotate smoothly during use, thus solving the problem of the lead screw easily vibrating during use.

[0015] This utility model provides a defrosting device for air conditioning refrigeration. Through the cooperation of the guide block and the guide rod, the outer casing is moved smoothly during use, preventing the outer casing from shaking easily during use.

[0016] This utility model provides a defrosting device for air conditioning refrigeration. By setting up a buffer component, it plays a good role in buffering the brush plate and air conditioning heat exchanger during use, preventing the brush plate and air conditioning heat exchanger from being easily damaged during use. Attached Figure Description

[0017] Figure 1 A schematic diagram of a preferred embodiment of a defrosting device for air conditioning refrigeration provided by this utility model;

[0018] Figure 2 This is a bottom sectional view of the shell structure of this utility model;

[0019] Figure 3 This is a side sectional view of the outer shell structure of this utility model.

[0020] The following are the labels in the diagram: 1. Air conditioner outdoor unit; 2. Air conditioner heat exchanger; 3. Housing; 4. Outer shell; 5. Brush plate; 6. Moving component; 61. Stepper motor; 62. Lead screw; 63. Threaded block; 64. Fixed column; 7. Buffer component; 71. Spring; 72. Buffer rod; 8. Bearing seat; 9. Guide block; 10. Guide rod. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] Example 1:

[0023] Please see Figure 1-3 This utility model provides a technical solution: a defrosting device for air conditioning refrigeration, comprising: an air conditioning outdoor unit 1, an air conditioning heat exchanger 2 fixedly connected inside the air conditioning outdoor unit 1, a housing 3 fixedly connected to the upper end inside the air conditioning outdoor unit 1, an outer shell 4 disposed below the housing 3, a brush plate 5 disposed on the rear side of the outer shell 4, the rear side of the brush plate 5 contacting the front side of the air conditioning heat exchanger 2, a moving component 6 and a buffer component 7, the moving component 6 being located in the housing 3 and used to drive the brush plate 5 to move left and right, and the buffer component 7 being located in the outer shell 4 and used to buffer the brush plate 5.

[0024] In this embodiment, when it is necessary to defrost the surface of the air conditioner heat exchanger 2, the stepper motor 61 drives the lead screw 62 to start rotating through the bearing seat 8. The rotation of the lead screw 62 drives the threaded block 63 to reciprocate left and right. The threaded block 63 drives the outer casing 4 to reciprocate left and right through the fixed column 64.

[0025] Example 2:

[0026] Please see Figure 1-3 As shown, based on Embodiment 1, this utility model provides a technical solution: the moving component 6 includes a stepper motor 61, the output end of the stepper motor 61 is fixedly connected to a lead screw 62, the surface of the lead screw 62 is threadedly connected to a threaded block 63, the lower end of the threaded block 63 is fixedly connected to a fixing post 64, the lower end of the fixing post 64 passes through to the lower end of the housing 3 and is fixedly connected to the upper end of the outer shell 4, the buffer component 7 includes a spring 71, one end of the spring 71 is fixedly connected to a buffer rod 72, one end of the buffer rod 72 passes through to the outside of the outer shell 4 and is fixedly connected to one side of the brush plate 5, one end of the lead screw 62 is sleeved with a bearing seat 8, one side of the bearing seat 8 is fixedly connected to one side inside the housing 3, the lower end of the outer shell 4 is fixedly connected to a guide block 9, the inside of the guide block 9 is slidably connected to a guide rod 10, and the guide rod 10 is horizontally fixedly connected in the outdoor unit 1 of the air conditioner.

[0027] In this embodiment: the outer shell 4 drives the guide block 9 to slide on the guide rod 10, increasing the stability of the movement of the outer shell 4. At the same time, the outer shell 4 drives the brush plate 5 to defrost the air conditioner heat exchanger 2. Simultaneously, the brush plate 5 is buffered on the spring 71 by the buffer rod 72.

[0028] The working principle of the defrosting device for air conditioning provided by this utility model is as follows:

[0029] Implementation steps for the first innovation point:

[0030] Step 1: When it is necessary to defrost the surface of the air conditioner heat exchanger 2, the stepper motor 61 drives the lead screw 62 to start rotating through the bearing seat 8;

[0031] Step 2: The lead screw 62 rotates, causing the threaded block 63 to reciprocate left and right. The threaded block 63 drives the outer shell 4 to reciprocate left and right through the fixed column 64.

[0032] Implementation steps for the second innovation point:

[0033] Step 1: The outer shell 4 drives the guide block 9 to slide on the guide rod 10, increasing the stability of the movement of the outer shell 4;

[0034] Step 2: At the same time, the outer casing 4 drives the brush plate 5 to defrost the air conditioner heat exchanger 2, and the brush plate 5 is buffered by the buffer rod 72 on the spring 71.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A defrosting device for air conditioning refrigeration, characterized in that: include: An air conditioner outdoor unit (1) is provided with an air conditioner heat exchanger (2) fixedly connected inside the air conditioner outdoor unit (1). A housing (3) is fixedly connected to the upper end of the air conditioner outdoor unit (1). A shell (4) is provided below the shell (3). A brush plate (5) is provided on the rear side of the shell (4). The rear side of the brush plate (5) is in contact with the front side of the air conditioner heat exchanger (2). The moving component (6) and the buffer component (7) are located in the housing (3) and are used to drive the brush plate (5) to move left and right. The buffer component (7) is located in the outer shell (4) and is used to buffer the brush plate (5).

2. The defrosting device for air conditioning refrigeration according to claim 1, characterized in that, The moving component (6) includes a stepper motor (61), the output end of which is fixedly connected to a lead screw (62), and the surface of the lead screw (62) is threadedly connected to a threaded block (63).

3. A defrosting device for air conditioning refrigeration according to claim 2, characterized in that, The lower end of the threaded block (63) is fixedly connected to a fixing post (64), the lower end of the fixing post (64) extends through to the lower end of the housing (3) and is fixedly connected to the upper end of the outer shell (4).

4. A defrosting device for air conditioning refrigeration according to claim 1, characterized in that, The buffer assembly (7) includes a spring (71), one end of which is fixedly connected to a buffer rod (72), one end of which extends through the outer shell (4) and is fixedly connected to one side of the brush plate (5).

5. A defrosting device for air conditioning refrigeration according to claim 2, characterized in that, One end of the lead screw (62) is fitted with a bearing seat (8), and one side of the bearing seat (8) is fixedly connected to one side inside the housing (3).

6. A defrosting device for air conditioning refrigeration according to claim 1, characterized in that, The lower end of the outer casing (4) is fixedly connected to a guide block (9), and a guide rod (10) is slidably connected inside the guide block (9). The guide rod (10) is horizontally fixedly connected in the outdoor unit (1) of the air conditioner.