Temperature controller with dustproof structure
By designing a dust cover, limit bracket, and sealing mechanism on the temperature controller, the problem of dust accumulation on the knob was solved, achieving effective dust prevention and improving the service life and operational stability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU HDV ELECTRICAL APPLIANCE CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-01
AI Technical Summary
The temperature controller's control knob lacks dustproof features, making it prone to dust accumulation, which affects operation and lifespan.
A temperature controller with a dustproof structure was designed, including a dust cover, a limit frame, a limit block, a guide rod, a guide block, a first spring, and a sealing mechanism. The spring force makes the sealing ring fit tightly against the controller body, enhancing the sealing effect.
It effectively prevents dust from entering, keeps the knob clean, and improves service life and operational stability.
Smart Images

Figure CN224192188U_ABST
Abstract
Description
A temperature controller with a dustproof structure Technical Field
[0001] This utility model relates to the field of temperature controller technology, specifically a temperature controller with a dustproof structure. Background Technology
[0002] A temperature controller is a smart device widely used in daily life and industrial production. Its main function is to accurately monitor and regulate temperature, ensuring that the temperature of the controlled environment is maintained within a set range. In cold winters, home air conditioners or underfloor heating rely on temperature controllers to keep the indoor environment warm and comfortable; while in hot summers, it can activate cooling equipment in a timely manner to create a cool space for people.
[0003] In the industrial sector, temperature controllers are crucial for numerous production processes. In chemical production, precise temperature control is a key factor in ensuring product quality and production safety; in food processing, appropriate temperatures preserve the nutrients and flavor of ingredients. These controllers are easy to operate; users simply set the desired temperature, and the equipment automatically runs, providing real-time temperature feedback. If the temperature deviates from the set value, it quickly adjusts, making it highly efficient and reliable, and providing great convenience for people's production and daily life.
[0004] According to the utility model disclosed in patent authorization announcement number CN201845243U, the temperature controller includes a first power input interface and a second power input interface for inputting AC power, and a main control module. A temperature protection module and a power conversion module are connected between the first power input interface and the second power input interface. The first input terminal of the main control module is connected to the power conversion module, and the second input terminal of the main control module is connected to the first power input interface or the second power input interface through a power detection module.
[0005] Temperature controllers play a vital role in numerous scenarios due to their precise temperature control capabilities. Whether maintaining a comfortable room temperature in a home or ensuring the stable operation of various processes in industrial production, they perform exceptionally well. However, temperature controllers also have some minor drawbacks. Their control knobs lack dustproof features, making them prone to accumulating dust and debris in everyday use. Especially in dusty environments such as factory workshops and construction sites, dust accumulation can not only affect the normal operation of the knobs but also potentially damage internal components, reducing the controller's lifespan and user experience. Summary of the Invention
[0006] The purpose of this invention is to provide a temperature controller with a dustproof structure, which solves the problem that the control knob of the temperature controller does not have a dustproof function during use.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a temperature controller with a dustproof structure, comprising a controller body, wherein heat dissipation holes are provided inside the controller body, an adjustment knob is provided on the left side of the controller body, a dust cover is hinged to the left side of the controller body via a damping shaft, the dust cover is in contact with the controller body, a limit frame is slidably connected to the outer side of the dust cover, a limit block is fixedly connected to the lower end of the controller body, a guide rod is fixedly connected inside the limit frame, a guide block is fixedly connected to the left side of the dust cover, a first spring is provided on the outer side of the guide rod, one end of the first spring is in contact with the guide block, the other end of the first spring is in contact with the limit frame, and a sealing mechanism is provided on the dust cover.
[0008] Preferably, the limiting frame is in contact with the controller body, and the limiting frame is slidably connected to the limiting block. Through the design of the limiting frame, the dust cover can be limited.
[0009] Preferably, the guide block is slidably connected to the limiting frame and the guide block is slidably connected to the guide rod. Through the design of the guide block, the guide rod can be limited.
[0010] Preferably, the sealing mechanism includes a slide rod, which is fixedly connected to the inner left side wall of the dust cover. A sealing ring is slidably connected to the outer side of the slide rod, and a slider is fixedly connected to the outer side of the slide rod. The slider is slidably connected to the sealing ring, and a fixing frame is fixedly connected inside the sealing ring. A second spring is provided on the outer side of the fixing frame. Through the design of the sealing mechanism, dust can be prevented from entering the dust cover from between the dust cover and the controller body.
[0011] Preferably, the sealing ring contacts the controller body and the dust cover. The design of the sealing ring can increase the sealing between the dust cover and the controller body.
[0012] Preferably, the fixing frame is in contact with the slide bar, and the fixing frame is slidably connected to the slider. Through the design of the fixing frame, the slider can be limited.
[0013] Preferably, one end of the second spring contacts the slider, and the other end of the second spring contacts the sealing ring. Through the design of the second spring, the sealing ring can be driven to fit against the controller body.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. This utility model innovatively features a dust cover that effectively blocks dust from the adjustment knob. At the same time, it cleverly configures components such as a sealing ring and a second spring. The elasticity of the second spring can make the sealing ring fit tightly against the controller body. In this way, the sealing effect between the dust cover and the controller body is greatly enhanced. Through this design, the problem of the temperature controller knob lacking dust protection function during use is completely solved.
[0016] 2. By setting up components such as a limiting frame, a limiting block, and a first spring, the limiting frame and the limiting block can be slidably connected by the elastic force of the first spring, so that the limiting frame can limit the dust cover and thus keep the dust cover stable when protecting the adjustment knob from dust. Attached Figure Description
[0017] Figure 1 is a three-dimensional view of the overall structure of this utility model;
[0018] Figure 2 is a partial three-dimensional structural view of the present invention as shown in Figure 1;
[0019] Figure 3 is a partial front sectional view of the structure of this utility model as shown in Figure 2;
[0020] Figure 4 is an enlarged view of part A in Figure 3 of this utility model.
[0021] In the diagram: 1. Controller body; 11. Heat dissipation hole; 12. Adjustment knob; 2. Dust cover; 21. Limiting frame; 22. Limiting block; 23. Guide rod; 24. Guide block; 25. First spring; 3. Sealing mechanism; 31. Slide rod; 32. Sealing ring; 33. Slider; 34. Fixing frame; 35. Second spring. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please refer to Figures 1-4. A temperature controller with a dustproof structure includes a controller body 1. The controller body 1 has heat dissipation holes 11 inside. An adjustment knob 12 is provided on the left side of the controller body 1. A dust cover 2 is hinged to the left side of the controller body 1 through a damping shaft. The dust cover 2 is in contact with the controller body 1. A limit bracket 21 is slidably connected to the outside of the dust cover 2. A limit block 22 is fixedly connected to the lower end of the controller body 1.
[0024] Please refer to Figure 2-4. The limiting frame 21 is in contact with the controller body 1. The limiting frame 21 is slidably connected to the limiting block 22. Through the design of the limiting frame 21, it can limit the dust cover 2. The guide rod 23 is fixedly connected inside the limiting frame 21. The guide block 24 is fixedly connected to the left side of the dust cover 2. The guide block 24 is slidably connected to the limiting frame 21. The guide block 24 is slidably connected to the guide rod 23. Through the design of the guide block 24, it can limit the guide rod 23. A first spring 25 is provided on the outside of the guide rod 23. One end of the first spring 25 is in contact with the guide block 24. The other end of the first spring 25 is in contact with the limiting frame 21. A sealing mechanism 3 is provided on the dust cover 2.
[0025] Please refer to Figure 2-4. The sealing mechanism 3 includes a slide rod 31. The slide rod 31 is fixedly connected to the inner left side wall of the dust cover 2. A sealing ring 32 is slidably connected to the outer side of the slide rod 31. The sealing ring 32 contacts the controller body 1 and the dust cover 2. The design of the sealing ring 32 increases the sealing between the dust cover 2 and the controller body 1. A slider 33 is fixedly connected to the outer side of the slide rod 31. The slider 33 is slidably connected to the sealing ring 32. A fixing bracket 34 is fixedly connected inside the sealing ring 32. The fixed frame 34 contacts the sliding rod 31, and the fixed frame 34 is slidably connected to the slider 33. The design of the fixed frame 34 can limit the slider 33. A second spring 35 is provided on the outside of the fixed frame 34. One end of the second spring 35 contacts the slider 33, and the other end of the second spring 35 contacts the sealing ring 32. The design of the second spring 35 can drive the sealing ring 32 to fit against the controller body 1. The design of the sealing mechanism 3 can prevent dust from entering the dust cover 2 from between the dust cover 2 and the controller body 1.
[0026] The specific implementation process of this utility model is as follows: In use, by moving the limiting frame 21 downward, the limiting frame 21 drives the guide rod 23 to slide within the guide block 24, causing the limiting frame 21 to compress the first spring 25. Then, the dust cover 2 is closed with the controller body 1, causing the dust cover 2 to bring the sealing ring 32 into contact with the controller body 1. The sealing ring 32 can then move on the slide rod 31, causing the sealing ring 32 to compress the second spring 35. The elastic force of the second spring 35 can then cause the sealing ring 32 to fit against the controller body 1, thereby effectively increasing the sealing between the dust cover 2 and the controller body 1. Then, the limiting frame 21 is released, and the elastic force of the first spring 25 can then drive the limiting frame 21 to move, causing the limiting frame 21 to slide and engage with the limiting block 22. This allows the limiting frame 21 to limit the dust cover 2, thus ensuring that the dust cover 2 remains stable when protecting the adjusting knob 12 from dust.
[0027] 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 temperature controller with a dustproof structure, comprising a controller body (1), characterized in that: The controller body (1) has a heat dissipation hole (11) inside. An adjustment knob (12) is provided on the left side of the controller body (1). A dust cover (2) is hinged to the left side of the controller body (1) through a damping shaft. The dust cover (2) is in contact with the controller body (1). A limit frame (21) is slidably connected to the outside of the dust cover (2). A limit block (22) is fixedly connected to the lower end of the controller body (1). A guide rod (23) is fixedly connected inside the limit frame (21). A guide block (24) is fixedly connected to the left side of the dust cover (2). A first spring (25) is provided on the outside of the guide rod (23). One end of the first spring (25) is in contact with the guide block (24), and the other end of the first spring (25) is in contact with the limit frame (21). A sealing mechanism (3) is provided on the dust cover (2).
2. A temperature controller with a dustproof structure according to claim 1, characterized in that: The limiting frame (21) contacts the controller body (1), and the limiting frame (21) is slidably connected to the limiting block (22).
3. A temperature controller with a dustproof structure according to claim 1, characterized in that: The guide block (24) is slidably connected to the limiting frame (21), and the guide block (24) is slidably connected to the guide rod (23).
4. A temperature controller with a dustproof structure according to claim 1, characterized in that: The sealing mechanism (3) includes a slide rod (31). The slide rod (31) is fixedly connected to the inner left side wall of the dust cover (2). A sealing ring (32) is slidably connected to the outer side of the slide rod (31). A slider (33) is fixedly connected to the outer side of the slide rod (31). The slider (33) is slidably connected to the sealing ring (32). A fixing frame (34) is fixedly connected inside the sealing ring (32). A second spring (35) is provided on the outer side of the fixing frame (34).
5. A temperature controller with a dustproof structure according to claim 4, characterized in that: The sealing ring (32) is in contact with the controller body (1) and the sealing ring (32) is in contact with the dust cover (2).
6. A temperature controller with a dustproof structure according to claim 4, characterized in that: The fixing frame (34) is in contact with the slide bar (31), and the fixing frame (34) is slidably connected to the slider (33).
7. A temperature controller with a dustproof structure according to claim 4, characterized in that: One end of the second spring (35) is in contact with the slider (33), and the other end of the second spring (35) is in contact with the sealing ring (32).
Citation Information
Patent Citations
Temperature controller
CN201845243U