Evaporator fin restorer
By designing an evaporator fin repairer and utilizing the high-frequency vibration of the eccentric wheel and micro vibration motor and a flexible brush, the problem of evaporator fin reversal was solved, the repair efficiency was improved, the fin coating was protected, and a convenient and safe repair operation was achieved.
Patent Information
- Application Number
- CN202422866608.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-25
AI Technical Summary
The evaporator fins are prone to flipping, resulting in reduced heat transfer efficiency and difficulty in repair. Existing tools are easy to injure fingers and are difficult to operate.
An evaporator fin repairer consisting of an eccentric wheel, a micro vibration motor, a lithium battery and a brush was designed. The fins were repaired through high-frequency vibration and a flexible brush, and the device was equipped with a multifunctional repair component to adapt to different fin rewinding situations.
Improves the efficiency of evaporator fin repair, protects the fin coating, avoids finger damage, and increases the service life and convenience of the repairer.
Smart Images
Figure CN223475957U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of evaporator technology, specifically to an evaporator fin repair device. Background Technology
[0002] Air source heat pumps operate on the principle of the "reverse Carnot cycle." Specifically, the evaporator acts as a heat exchanger, absorbing heat from the outdoor air to heat the low-boiling-point refrigerant, causing it to absorb heat. The gaseous refrigerant is then compressed and heated by the compressor before entering the condenser, where it releases heat to the water and condenses. The condenser then reduces pressure and temperature, returning to the evaporator to begin the next cycle. In short, it absorbs heat from the air to heat water.
[0003] Air source heat pump units use finned evaporators. These consist of several rows of coils with expanded aluminum (or copper) foil fins. The purpose of the expanded fins is to increase the heat transfer area, enhance air turbulence, and improve the evaporator's heat transfer efficiency. The aluminum fins are generally anodized to improve their corrosion resistance. The fin thickness is typically 0.12~0.20mm, and the fin spacing is 1.5~2.5mm.
[0004] Evaporator fins are prone to tipping over, which not only affects aesthetics and creates a poor customer experience, but also significantly impacts overall cooling and heating efficiency. Since evaporators primarily function for heat exchange, severe tipping prevents ventilation. In other words, the usable surface area of the evaporator is reduced. Tipped fins are difficult to repair because they are extremely thin, and without specialized tools, it's easy to cut yourself. A high rate of tipped fins leads to a substantial amount of repair work. Utility Model Content
[0005] This utility model provides an evaporator fin repair tool, which has a simple structure, is easy to carry, and has multiple functions, bringing great convenience to the work of repairing evaporator fins.
[0006] This utility model provides the following technical solution:
[0007] An evaporator fin repair device includes a body with a hollow structure at the front and middle. An eccentric wheel, a micro-vibration motor, a lithium battery charging board module, and a lithium battery are sequentially installed within the cavity. The eccentric wheel and the micro-vibration motor are rigidly connected by a bushing. The micro-vibration motor and the lithium battery are both electrically connected to the lithium battery charging board module. A push-button switch on the outer wall of the body is electrically connected to the lithium battery charging board module, and a connector on the lithium battery charging board module is mounted on the outer wall of the body. A brush is installed at one end of the body adjacent to the eccentric wheel.
[0008] The rear end of the main body is detachably equipped with a repair assembly consisting of a guide scale body and a guide scale head, which includes tweezers, a pry bar, a slanted hook, and a fixing fin.
[0009] The rear end of the main body has a groove structure, in which a shaft is detachably hinged, and a repair component is mounted on the shaft.
[0010] The brush uses coarse fiber bristles.
[0011] The brush is threadedly connected to one end of the body adjacent to the eccentric wheel via a threaded portion at its rear end.
[0012] The beneficial effects of this utility model are:
[0013] 1. This utility model has the characteristics of simple structure, easy to carry, multiple functions, and significant effect, which greatly facilitates the repair of evaporator fins.
[0014] 2. The brush of this invention uses coarse-fiber needles, which can effectively avoid damaging the hydrophilic and anti-corrosion coatings of the fins, and the force applied to the fins is relatively flexible, without damaging the fin structure. Furthermore, the brush is connected to the main body via threads, allowing for easy replacement after excessive use, thus increasing the overall service life of the repair device.
[0015] 3. A vibration motor is installed near the brush end; the high-frequency vibration from the motor significantly improves the efficiency of evaporator fin repair. Powered by a lithium battery, and equipped with a charging module and a switch button, it increases the sustainability and convenience of repair services.
[0016] 4. This utility model can solve various fin tipping problems. Attached Figure Description
[0017] Figure 1 This is a perspective view of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the internal layout of the main body of this utility model;
[0019] Reference numerals: 1. Brush; 2. Threaded part; 3. Body; 4. Button switch; 5. Shaft; 6. Tweezers; 7. Paddle; 8. Hook; 9. Guide scale body; 10. Guide scale head; 31. Lithium battery; 32. Lithium battery charging board module; 33. Connector; 34. Miniature vibration motor; 35. Eccentric wheel. Detailed Implementation
[0020] The technical solutions in the embodiments of this utility model will now be described in a comprehensive, detailed and clear manner with reference to the accompanying drawings.
[0021] like Figure 1-2As shown, an evaporator fin repairer includes a body 3. The front and middle parts of the body 3 are hollow structures. An eccentric wheel 35, a micro vibration motor 34, a lithium battery charging board module 32, and a lithium battery 31 are sequentially installed in the cavity. The eccentric wheel 35 and the micro vibration motor 34 are rigidly connected by a bushing. The micro vibration motor 34 and the lithium battery 31 are both electrically connected to the lithium battery charging board module 32. A push-button switch 4 is provided on the outer wall of the body 3 and is electrically connected to the lithium battery charging board module 32. A connector 33 is led out from the lithium battery charging board module 32 and installed on the outer wall of the body 3. A brush 1 is installed at one end of the body 3 adjacent to the eccentric wheel 35.
[0022] The base of brush 1 is a rectangular plane of 10×30mm, on which multiple rows of coarse fiber needles are evenly distributed. The body length of brush 1 is 15mm.
[0023] The lithium battery 31 is a 3.7V 18650, the lithium battery charging board module is model 32TP4056 1A, the connector 33 is Type-C, and the miniature vibration motor 34 is model N15-10140. The miniature vibration motor 34 and the eccentric wheel 35 are mounted close to the brush, which allows for better vibration application to the brush 1. The push-button switch 4 controls the vibration frequency of the miniature vibration motor to achieve different operating conditions. The push-button switch 4 has a three-speed adjustment function: one press for speed level one, a third press for speed level three, and a fourth press to turn it off.
[0024] The rear end of the main body 3 is detachably equipped with a repair assembly consisting of tweezers 6, pry bar 7, oblique hook 8, and guide scale body 9 and guide scale head 10 that fix the fins.
[0025] All repair components are made of plastic, which reduces damage to the evaporator fins and lowers manufacturing costs. The tweezers 6 consist of two thin pieces, each 10mm wide at the tail, 5mm wide at the tip, 100mm long, and 2mm thick, fused together at the tail. The pry bar 7 is a thin piece 10mm wide, 100mm long, and 2mm thick. The oblique hook 8 is a thin piece with a 45° angle at the front, 100mm long, 10mm wide, and 2mm thick. The guide ruler, used to fix the evaporator fins, consists of a guide ruler body 9 and a guide ruler head 10. The guide ruler body 9 is a piece 10mm wide, 60mm long, and 3mm thick. The guide ruler head 10 is a quarter-cylinder with multiple layers of 1mm-spaced, 1.7mm thick fixing pieces, with a radius of 15mm and a height of 20mm.
[0026] The rear end of the main body 3 has a groove structure, in which a shaft 5 is detachably hinged, and a repair component is mounted on the shaft 5.
[0027] The brush 1 uses coarse fiber needles, which can effectively avoid damaging the hydrophilic coating and anti-corrosion coating of the fins, and the force applied to the fins is relatively flexible and will not damage the fin structure.
[0028] The brush 1 is threadedly connected to one end of the body 3 adjacent to the eccentric wheel 35 via its rear threaded portion 2. Overused brushes 1 can be replaced, facilitating use and increasing the overall lifespan of the repair device.
[0029] The working principle and usage process of this utility model are as follows: When the evaporator fins are bent due to external force, this repair device can be used for repair. First, determine the degree of bending. If the degree is minor, the brush 1 can be used directly for repair. Then, depending on the repair situation, the guide ruler 10 can be used for repair. If the bending is severe, the evaporator fins can be straightened first using the pry bar 7, and then the brush 1 can be used for repair. If the evaporator fins are curled, the hook 8 can be used to straighten them first, and then the next step can be carried out. If the hook 8 cannot be operated or is damaged and curled longitudinally, the tweezers 6 can be used for repair.
[0030] When using brush 1 for repair, the micro vibration motor 34 can be turned on to improve repair efficiency. When button switch 4 is pressed, a closed circuit is formed in which lithium battery 31 supplies power to lithium battery charging board module 32, and lithium battery charging board module 32 supplies power to micro vibration motor 34. In this way, the rotor shaft of micro vibration motor 34 rotates, driving eccentric wheel 35 to rotate, generating eccentric force to produce vibration. The generated vibration is transmitted to brush 1 to produce high-frequency vibration, which acts on the evaporator fins to correct the disorder.
[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. An evaporator fin repair device, comprising a body, characterized in that, The front and middle parts of the body (3) are hollow structures, and an eccentric wheel (35), a micro vibration motor (34), a lithium battery charging board module (32), and a lithium battery (31) are installed in sequence inside the cavity; the eccentric wheel (35) and the micro vibration motor (34) are rigidly connected by a bushing, and the micro vibration motor (34) and the lithium battery (31) are electrically connected to the lithium battery charging board module (32); a button switch (4) provided on the outer wall of the body (3) is electrically connected to the lithium battery charging board module (32), and a connector (33) leading out from the lithium battery charging board module (32) is installed on the outer wall of the body (3); a brush (1) is installed at one end of the body (3) adjacent to the eccentric wheel (35).
2. The evaporator fin repair device according to claim 1, characterized in that, The rear end of the main body (3) is detachably equipped with a repair assembly consisting of tweezers (6), a pry bar (7), a slanted hook (8), a guide scale body (9) for fixing the fins, and a guide scale head (10).
3. The evaporator fin repair device according to claim 2, characterized in that, The rear end of the main body (3) is a groove structure, and a shaft (5) is detachably hinged in the groove, on which a repair component is mounted.
4. An evaporator fin repair device according to any one of claims 1-3, characterized in that, The brush (1) is made of coarse fiber needles.
5. The evaporator fin repair device according to claim 4, characterized in that, The brush (1) is threadedly connected to one end of the body (3) adjacent to the threaded portion (2) at its rear end and the eccentric wheel (35).