Defrosting device for variable frequency air conditioner

Abstract

The utility model relates to the technical field of variable-frequency air conditioners, in particular to a defrosting device for a variable-frequency air conditioner, which comprises a variable-frequency air conditioner body, a heat exchanger for heat exchange is arranged on one side in the variable-frequency air conditioner body, and a supporting seat is fixedly connected to one side of the middle of the inner bottom surface of the variable-frequency air conditioner body. A double-shaft servo motor is arranged at the upper end of the supporting seat, and a defrosting assembly used for defrosting the heat exchanger is arranged on the position, located on one side of the double-shaft servo motor, in the variable frequency air conditioner body. Compared with the prior art, the problems that due to the fact that traditional partial variable frequency air conditioners are not provided with defrosting structures, air conditioner energy consumption is increased, meanwhile, peculiar smell is possibly generated, and the indoor environment is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of variable frequency air conditioners, in particular to a defrosting device for variable frequency air conditioners. Background Art

[0002] Inverter air conditioner refers to a conventional air conditioner with an inverter installed. Its main principle is that 220V voltage and 50Hz frequency current can be rectified and filtered to obtain about 310V DC power, and then after inversion, it can obtain the variable frequency power supply to control the operation of the compressor, which can convert the 50Hz grid frequency to 30-130Hz. This conversion allows the compressor to adjust the cooling speed according to the changes in indoor temperature to achieve the best energy efficiency.

[0003] When designing air conditioners, some manufacturers use an oversized evaporator area to increase heating efficiency, resulting in an oversized heating heat exchanger area and a small gap between the evaporator and the condenser, which may cause poor air circulation and thus cause frost. However, some variable frequency air conditioners are not equipped with a defrosting structure, which reduces the heating or cooling effect of the air conditioner, and thus takes longer to reach the set temperature, increasing energy consumption and possibly generating odor, affecting the indoor environment. Furthermore, we disclose a defrosting device for a variable frequency air conditioner to meet the actual demand for existing variable frequency air conditioners that are not equipped with a defrosting structure. Summary of the invention

[0004] In view of this, the purpose of the utility model is to provide a defrosting device for a variable frequency air conditioner to solve the problem that some traditional variable frequency air conditioners are not equipped with a defrosting structure, which increases the energy consumption of the air conditioner and may produce odor, affecting the indoor environment.

[0005] Based on the above-mentioned purpose, the utility model provides a defrost device for a variable frequency air conditioner, comprising a variable frequency air conditioner main body, a heat exchanger for heat exchange is arranged on one side of the interior of the variable frequency air conditioner main body, a support base is fixedly connected to one side of the middle part of the inner bottom surface of the variable frequency air conditioner main body, a dual-axis servo motor is arranged on the upper end of the support base, and a defrost assembly for defrosting the heat exchanger is arranged on one side of the dual-axis servo motor inside the variable frequency air conditioner main body.

[0006] Preferably, the defrost assembly includes a reciprocating screw rotatably connected to the main body of the variable frequency air conditioner, a sliding block is slidably connected to the outer wall of the reciprocating screw, and a driven pulley is fixedly connected to the upper end of the reciprocating screw.

[0007] Preferably, one end of the sliding block is fixedly connected to a connecting sleeve, and one end of the connecting sleeve is rotatably connected to a connecting rod.

[0008] Preferably, one end of the connecting rod away from the connecting sleeve is fixedly connected to a scraper, the scraper contacts the heat exchanger, one output end of the dual-axis servo motor is fixedly connected to a driving bevel gear, and the upper end of the driving bevel gear is meshedly connected to a driven bevel gear.

[0009] Preferably, a fixed shaft is fixedly connected to the middle portion of the driven bevel gear, and a lower end of the fixed shaft is rotationally connected to the variable frequency air conditioner body.

[0010] Preferably, guide blocks are fixedly connected to both sides of the inner wall of the scraper, a guide rod is arranged inside the guide block, the upper and lower ends of the guide rod are fixedly connected to the variable frequency air conditioner body, and the guide rod is slidably connected to the guide block.

[0011] Preferably, a driving pulley is fixedly connected to the upper end of the fixed shaft, and the driving pulley is connected to the driven pulley through a belt transmission.

[0012] Preferably, a fan for heat dissipation is fixedly connected to the output end of the dual-axis servo motor on the side away from the defrost assembly, and a plurality of through holes are evenly spaced apart on the support base.

[0013] The beneficial effects of the utility model are as follows: when the variable frequency air conditioner is in use, the defrost assembly is driven by a dual-axis servo motor, so that the scraper slides back and forth on the surface of the heat exchanger, and the scraper contacts the surface of the heat exchanger, so that frost is not easy to accumulate on the surface of the heat exchanger, thereby improving the heating or heating effect of the air conditioner and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the scraper drive assembly of the utility model;

[0018] Figure 4 This is a schematic diagram of the partial three-dimensional structure of the scraper drive assembly of the utility model;

[0019] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0020] The markings in the figure are:

[0021] 1. Inverter air conditioner body; 2. Reciprocating screw; 3. Heat exchanger; 4. Scraper; 5. Support seat; 6. Guide rod; 7. Belt; 8. Driven pulley; 9. Driving pulley; 10. Fixed shaft; 11. Driven bevel gear; 12. Driving bevel gear; 13. Dual-axis servo motor; 14. Guide block; 15. Sliding block; 16. Connecting sleeve; 17. Connecting rod. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0023] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] like Figures 1 to 5 As shown, a defrost device for a variable frequency air conditioner comprises a variable frequency air conditioner main body 1, a heat exchanger 3 for heat exchange is arranged on one side inside the variable frequency air conditioner main body 1, a support seat 5 is fixedly connected to one side of the middle part of the inner bottom surface of the variable frequency air conditioner main body 1, a double-axis servo motor 13 is arranged on the upper end of the support seat 5, and a defrost assembly for defrosting the heat exchanger 3 is arranged on one side of the double-axis servo motor 13 inside the variable frequency air conditioner main body 1. When the variable frequency air conditioner is in use, the defrost assembly is driven by the double-axis servo motor 13, so that the scraper 4 slides back and forth on the surface of the heat exchanger 3, and the scraper 4 contacts the surface of the heat exchanger 3, so that frost is not easy to accumulate on the surface of the heat exchanger 3, thereby improving the heating effect of the air conditioner and reducing energy consumption.

[0025] Further, such as Figures 2 to 5As shown, the defrost assembly includes a reciprocating screw 2 rotatably connected to the variable frequency air conditioner body 1, the outer wall of the reciprocating screw 2 is slidably connected to a sliding block 15, the upper end of the reciprocating screw 2 is fixedly connected to a driven pulley 8, one end of the sliding block 15 is fixedly connected to a connecting sleeve 16, one end of the connecting sleeve 16 is engaged and rotatably connected to a connecting rod 17, the end of the connecting rod 17 away from the connecting sleeve 16 is fixedly connected to a scraper 4, the scraper 4 is in contact with the heat exchanger 3, one side output end of the dual-axis servo motor 13 is fixedly connected to an active bevel gear 12, the upper end of the active bevel gear 12 is meshedly connected to a driven bevel gear 11, the middle part of the driven bevel gear 11 is fixedly connected to a fixed shaft 10, the lower end of the fixed shaft 10 is rotatably connected to the variable frequency air conditioner body 1, both sides of the inner wall of the scraper 4 are fixedly connected to guide blocks 14, the inside of the guide block 14 is provided with a guide rod 6, the upper and lower ends of the guide rod 6 are fixed to the variable frequency air conditioner body 1 The guide rod 6 is connected with the guide block 14 in a sliding connection. The upper end of the fixed shaft 10 is fixedly connected with a driving pulley 9. The driving pulley 9 and the driven pulley 8 are connected through a belt 7. When the variable frequency air conditioner is in use, the defrosting component is driven by a dual-axis servo motor 13. The output end of one side of the dual-axis servo motor 13 drives the driving bevel gear 12 to rotate. The driving bevel gear 12 drives the driven bevel gear 11, the fixed shaft 10 and the driving pulley 9 to rotate. The driving pulley 9 drives the driven pulley 8 to rotate through the belt 7. The driven pulley 8 drives the reciprocating screw 2 at the lower end to rotate. The reciprocating screw 2 uses the external guide groove to make the sliding block 15 spiral around the outer wall of the reciprocating screw 2. The sliding block 15 is connected to the scraper 4 through a connecting rod 17 that rotates on one side, thereby driving the scraper 4 to move up and down. The scraper 4 contacts the heat exchanger 3, thereby making it difficult for frost to remain on the surface of the heat exchanger 3.

[0026] Further, such as Figure 2 As shown, the output end of the dual-axis servo motor 13 away from the defrost component is fixedly connected to a fan for heat dissipation, and a plurality of through holes are evenly spaced on the support base 5. The fan is driven to rotate by the dual-axis servo motor 13 and the through holes are arranged on the support base 5 to improve the heat dissipation efficiency of the variable frequency air conditioner body 1.

[0027] Working principle: When the variable frequency air conditioner is in use, the defrost assembly is driven by a dual-axis servo motor 13. The output end of one side of the dual-axis servo motor 13 drives the active bevel gear 12 to rotate, and the active bevel gear 12 drives the driven bevel gear 11 and the fixed shaft 10 and the active pulley 9 to rotate. The active pulley 9 drives the driven pulley 8 to rotate through the belt 7, and the driven pulley 8 drives the reciprocating screw 2 at the lower end to rotate. The reciprocating screw 2 uses the external guide groove to make the sliding block 15 spirally move around the outer wall of the reciprocating screw 2. The sliding block 15 is connected to the scraper 4 through a connecting rod 17 that rotates on one side, thereby driving the scraper 4 to move up and down. The scraper 4 contacts the heat exchanger 3, so that it is not easy for frost to remain on the surface of the heat exchanger 3.

[0028] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0029] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A defrosting device for a variable frequency air conditioner, comprising a variable frequency air conditioner main body (1), wherein a heat exchanger (3) for heat exchange is arranged on one side of the interior of the variable frequency air conditioner main body (1), characterized in that: A support seat (5) is fixedly connected to one side of the middle portion of the inner bottom surface of the variable frequency air conditioner body (1), a dual-axis servo motor (13) is arranged at the upper end of the support seat (5), and a defrosting component for defrosting the heat exchanger (3) is arranged inside the variable frequency air conditioner body (1) and on one side of the dual-axis servo motor (13).

2. The defrosting device for a variable frequency air conditioner according to claim 1, characterized in that: The defrosting assembly comprises a reciprocating screw (2) rotatably connected to a variable frequency air conditioner body (1); a sliding block (15) is slidably connected to the outer wall of the reciprocating screw (2); and a driven pulley (8) is fixedly connected to the upper end of the reciprocating screw (2).

3. The defrosting device for a variable frequency air conditioner according to claim 2, characterized in that: One end of the sliding block (15) is fixedly connected to a connecting sleeve (16), and one end of the connecting sleeve (16) is rotatably connected to a connecting rod (17).

4. The defrosting device for a variable frequency air conditioner according to claim 3, characterized in that: One end of the connecting rod (17) away from the connecting sleeve (16) is fixedly connected to the scraper (4), and the scraper (4) is in contact with the heat exchanger (3). One output end of the dual-axis servo motor (13) is fixedly connected to a driving bevel gear (12), and the upper end of the driving bevel gear (12) is meshingly connected to a driven bevel gear (11).

5. The defrosting device for a variable frequency air conditioner according to claim 4, characterized in that: A fixed shaft (10) is fixedly connected to the middle of the driven bevel gear (11), and a lower end of the fixed shaft (10) is rotationally connected to the variable frequency air conditioner body (1).

6. The defrosting device for a variable frequency air conditioner according to claim 4, characterized in that: Guide blocks (14) are fixedly connected to both sides of the inner wall of the scraper (4), a guide rod (6) is arranged inside the guide block (14), the upper and lower ends of the guide rod (6) are fixedly connected to the variable frequency air conditioner body (1), and the guide rod (6) is slidably connected to the guide block (14).

7. The defrosting device for a variable frequency air conditioner according to claim 5, characterized in that: The upper end of the fixed shaft (10) is fixedly connected with a driving pulley (9), and the driving pulley (9) is connected to the driven pulley (8) through a belt (7).

8. The defrosting device for a variable frequency air conditioner according to claim 1, characterized in that: The double A fan for heat dissipation is fixedly connected to the output end of the shaft servo motor (13) away from the defrosting component. The support seat (5) is provided with a plurality of through holes at even intervals.

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