Temperature sensor fixing structure of air conditioner
By combining a copper tube clamp, flexible clip, locking teeth, and spring sheet, along with a glass fiber insulation layer, the problem of air conditioner temperature sensors becoming loose in high-frequency vibration environments and being affected by external temperature interference is solved, achieving stable clamping and accurate temperature measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SENSITIVE STAR SENSOR TECH HUIZHOU CO LTD
- Filing Date
- 2025-11-13
- Publication Date
- 2026-07-21
AI Technical Summary
Existing air conditioner temperature sensor fixing structures are prone to metal fatigue, clamping force attenuation, and loosening in high-frequency vibration environments, leading to decreased detection accuracy, and external temperature interference affects temperature measurement accuracy.
It adopts a combination structure of copper tube clamp, flexible clip, locking teeth, spring and spring, combined with glass fiber cotton heat insulation layer to ensure that the sensor fits tightly with the copper tube, and resists vibration and blocks external temperature interference through self-locking structure.
It enables stable clamping of sensors in high-frequency vibration environments, improves temperature measurement accuracy and data stability, reduces production costs and spare parts types, and enhances product versatility.
Smart Images
Figure CN224535251U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioner accessories technology, specifically to a temperature sensor fixing structure for an air conditioner. Background Technology
[0002] In air conditioning temperature detection systems, temperature sensors need to be tightly fitted to copper pipes for accurate temperature measurement. Currently, the mainstream approach in the industry is to use a flexible snap-fit structure to fix the sensor to the copper pipe. This type of fixing structure typically consists of two parts: a metal elastic clip and a sensor insertion slot. The specific assembly method is as follows: the clip is secured to the surface of the copper pipe by the clamping force of the metal elastic clip itself, and then the probe end of the temperature sensor is inserted into the pre-set limiting slot inside the clip. The clip's structural limiting mechanism ensures that the sensor probe indirectly fits against the copper pipe, thereby achieving effective transmission of the temperature signal.
[0003] However, during the operation of the outdoor unit of an air conditioner, the compressor's start-up and shutdown, the high-speed rotation of the fan, and the flow of refrigerant within the copper pipes generate continuous high-frequency vibrations. These vibrations are transmitted through components such as the outdoor unit casing and pipe supports to the copper pipes and the clamping structures fixed to them. Existing clamping structures often feature metal elastic plates with a single fixed curvature design, which are prone to metal fatigue under long-term high-frequency vibration, leading to a gradual decrease in the clamping force of the elastic plates. Simultaneously, the contact surfaces between the clamps and the copper pipes are mostly smooth planes, which are prone to relative sliding under vibration, further exacerbating the loosening of the clamps and ultimately causing gaps to form between the clamps and the copper pipes, or even complete detachment. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide a temperature sensor fixing structure for an air conditioner to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a temperature sensor fixing structure for an air conditioner, comprising a copper pipe clamp, a sensor receiving portion at the top of the copper pipe clamp, a mounting portion at the top of the sensor receiving portion, a spring sheet fixed to the inner wall of the mounting portion, a heat insulation layer covering the outer surfaces of the mounting portion and the sensor receiving portion, a flexible clip connected to one side of the bottom of the copper pipe clamp, a toothed groove on one side of the flexible clip, a mounting bracket fixed to one side of the copper pipe clamp, and a pressing portion connected to the inner copper pipe connecting shaft of the mounting bracket, a locking tooth on one side of the pressing portion, and a copper pipe spring connected to the copper pipe clamp on one side of the pressing portion.
[0006] Furthermore, a temperature sensor is inserted inside the sensor housing, and the bottom of the spring contact abuts against the temperature sensor.
[0007] By adopting the above technical solution, the bottom of the spring contact directly abuts against the sensor, providing continuous elastic pressure to the sensor and ensuring that it is always in close contact with the copper tube, thus directly guaranteeing the accuracy of temperature detection from the assembly structure.
[0008] Furthermore, the heat insulation layer is made of glass fiber cotton material.
[0009] By adopting the above technical solution, the material has an extremely low thermal conductivity, which can effectively block the heat transfer between the external ambient temperature (such as high temperature in summer and low temperature in winter) and the heat-generating components inside the air conditioner outdoor unit (such as compressor and fan motor), avoiding interference with the temperature sensor inside the sensor housing; at the same time, it has a wide range of high and low temperature resistance (-50℃ to 150℃), which can be adapted to the full operating environment of the air conditioner, continuously ensuring that the temperature sensor accurately collects the temperature of the copper tube, and further improving the stability of the detection data.
[0010] Furthermore, an anti-deviation bracket is provided on the lower side of the other side of the copper tube clamp.
[0011] By adopting the above technical solution, the anti-deviation frame can provide lateral support for the flexible cartridge, ensuring that the contact surface between the cartridge and the copper tube always maintains complete contact, preventing insufficient local clamping force caused by cartridge deviation, and further enhancing the stability of the overall fixing structure by cooperating with the pressing part and the tooth groove.
[0012] Furthermore, the flexible cassette is movably connected to the copper tube clamp via a fixed shaft, and the flexible cassette is made of nylon 66 material.
[0013] By adopting the above technical solution, the movable connection structure allows the flexible clamping tape to rotate flexibly around the fixed axis, facilitating adaptive adjustment of the wrapping angle according to the copper pipe diameter. This avoids the dead angles in tape application caused by traditional rigid connections, ensuring a tight wrapping of copper pipes of different specifications. Furthermore, the flexible clamping tape is made of Nylon 66 material, which possesses excellent mechanical strength and toughness. It can withstand the tension brought by long-term clamping without easily breaking, and maintains stable performance within the operating temperature range of air conditioner outdoor units from -40℃ to 120℃. At the same time, its strong anti-aging, moisture and heat resistance, and wear resistance can effectively resist the vibration and friction of the outdoor unit and environmental corrosion, extending the service life of the clamping tape and further ensuring the long-term stable clamping effect of the fixed structure.
[0014] Furthermore, the tooth grooves are provided in several groups, and if the groups of tooth grooves are distributed at equal intervals and closely, all of the groups of tooth grooves are adapted to the locking teeth.
[0015] By adopting the above technical solution, the equidistant and closely distributed design allows for flexible adjustment of the wrapping length of the flexible clamping tape according to the diameter of the copper pipe. At the same time, all the grooves are adapted to the clamping teeth, which means that no matter where the clamping tape is adjusted, the clamping teeth can form a deep engagement with the corresponding grooves. Combined with the elastic force of the spring, a reliable self-locking structure is formed, which effectively prevents the engagement from loosening due to vibration of the air conditioner outdoor unit and further ensures the stable clamping force of the flexible clamping tape on the copper pipe.
[0016] Furthermore, the copper tube clamp, sensor housing, and elastic mounting portion are integrally formed.
[0017] By adopting the above technical solutions, the structural strength and deformation resistance of the overall components are significantly improved. Secondly, the one-piece molding also reduces the number of parts and assembly processes, thereby reducing production and inventory costs.
[0018] Furthermore, the spring is provided in two sets, and both sets of springs and spring sheets are made of manganese steel.
[0019] By adopting the above technical solutions, manganese steel possesses excellent high elasticity, fatigue resistance, and high and low temperature resistance, enabling it to withstand continuous deformation over a long period without easily experiencing elastic decay.
[0020] In summary, the present invention has the following main advantages:
[0021] 1. This utility model relates to a copper tube with a flexible clamping tape, a toothed groove, clamping teeth, a spring, and a pressing part. When installing the fixing structure on the copper tube, the operator only needs to place the copper tube clamp against the surface of the copper tube, and then insert the flexible clamping tape through the anti-deviation frame into the pressing part. The inclined structure at the bottom of the clamping teeth facilitates the smooth insertion of the clamping tape. At the same time, the anti-deviation frame effectively limits the deviation of the flexible clamping tape. After the flexible clamping tape is in contact with the copper tube, the elastic force of the spring continuously pushes the pressing part to tightly engage with the clamping teeth in the toothed groove, forming a reliable self-locking fixing structure. The structure effectively counteracts the high-frequency vibrations during the operation of the outdoor unit of the air conditioner, avoiding the problem of clamping force attenuation caused by metal fatigue in traditional elastic sheets. Even in a vibrating environment for a long time, the engagement of the teeth and grooves is not easy to loosen, and the flexible clip and copper pipe are always tightly fitted. The cooperation between the flexible clip and the copper pipe clamp can clamp the copper pipe, completely solving the technical pain point of easy loosening of traditional clip structures. There is no need to design multiple specifications of fasteners for different pipe diameters, which significantly reduces the types of spare parts and improves the versatility of the product.
[0022] 2. The copper tube of this utility model is equipped with a spring plate. When the operator inserts the temperature sensor into the sensor housing cavity, the spring plate, with its continuous and stable elastic pressure, can always tightly push the temperature sensor, ensuring that its probe and the surface of the copper tube remain in a gapless fit. This effectively avoids sensor displacement or loosening caused by vibration during the operation of the air conditioner outdoor unit. At the same time, the heat insulation layer added to the mounting part and the outer surface of the sensor housing cavity can effectively isolate the interference of external ambient temperature. It can block the direct impact of high temperature under summer sun and low temperature in winter on the sensor, and also shield the heat dissipation radiation of other heat-generating components inside the outdoor unit (such as compressor and fan motor). This allows the temperature sensor to focus solely on collecting the temperature signal of the copper tube, completely eliminating the interference of the external temperature field on the detection data and further improving the stability of temperature measurement accuracy. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of this utility model;
[0024] Figure 2 This is a schematic diagram of the copper tube clamp structure of this utility model;
[0025] Figure 3 This is a schematic diagram of the spring clip and anti-deviation frame structure of this utility model;
[0026] Figure 4 This is a schematic diagram of the pressing part structure of this utility model;
[0027] Figure 5 This is a front view schematic diagram of the copper tube clamp of this utility model.
[0028] In the diagram: 1. Copper tube clamp; 2. Sensor housing; 3. Mounting part; 4. Temperature sensor; 5. Flexible clip; 6. Spring; 7. Anti-deviation bracket; 8. Mounting bracket; 9. Connecting shaft; 10. Pressing part; 11. Spring; 12. Heat insulation layer; 13. Gear; 14. Clamping teeth. Detailed Implementation
[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0030] The embodiments of this utility model will be described below based on its overall structure.
[0031] Example 1: A temperature sensor fixing structure for an air conditioner, such as... Figures 1-5As shown, the device includes a copper tube clamp 1, a sensor receiving part 2 at its top, a mounting part 3 at its top, a spring piece 6 fixed to the inner wall of the mounting part 3, and a heat insulation layer 12 covering the outer surfaces of the mounting part 3 and the sensor receiving part 2. A flexible clip 5 is connected to one side of the bottom of the copper tube clamp 1, and a toothed groove 13 is provided on one side of the flexible clip 5. A mounting bracket 8 is fixed to one side of the copper tube clamp 1, and a pressing part 10 is connected to the inner copper tube connecting shaft 9 of the mounting bracket 8. A locking tooth 14 is provided on one side of the pressing part 10. The tube spring 11 is connected to the copper tube clamp 1. The temperature sensor 4 is inserted into the inside of the sensor receiving part 2, and the bottom of the spring piece 6 abuts against the temperature sensor 4. By means of the direct abutment between the bottom of the spring piece 6 and the sensor, the sensor is provided with continuous elastic pressure, ensuring that it is always in close contact with the copper tube. This directly ensures the accuracy of temperature detection from the assembly structure. The copper tube clamp 1, the sensor receiving part 2, and the elastic mounting part 3 are integrally formed, which firstly greatly improves the structural strength and deformation resistance of the overall component, and secondly, the integral forming also reduces the number of parts and assembly processes, thereby reducing production and inventory costs.
[0032] See Figure 1 , Figure 2 and Figure 5 In the above embodiments, the heat insulation layer 12 is made of glass fiber cotton material, which has an extremely low thermal conductivity and can effectively block the heat transfer between the external ambient temperature (such as high temperature in summer and low temperature in winter) and the heat-generating components inside the air conditioner outdoor unit (such as compressor and fan motor), avoiding interference with the temperature sensor 4 inside the sensor housing 2; at the same time, it has a wide range of high and low temperature resistance (-50℃ to 150℃), which can be adapted to the full operating environment of the air conditioner, continuously ensuring that the temperature sensor 4 accurately collects the temperature of the copper pipe, and further improving the stability of the detection data.
[0033] See Figure 2 and Figure 5 In the above embodiment, the flexible clip 5 is movably connected to the copper tube clamp 1 via a fixed shaft. The flexible clip 5 is made of nylon 66 material. The movable connection structure allows the flexible clip 5 to rotate flexibly around the fixed shaft, which facilitates adaptive adjustment of the wrapping angle according to the diameter of the copper tube. This avoids the dead angle of clip fitting caused by traditional rigid connections and ensures that copper tubes of different specifications can be tightly wrapped. The flexible clip 5 is made of nylon 66 material, which has excellent mechanical strength and toughness. It can withstand the tension brought by long-term clamping without breaking. It can also maintain stable performance within the operating temperature range of air conditioner outdoor units from -40℃ to 120℃. At the same time, it has strong anti-aging, moisture and heat resistance and wear resistance, which can effectively resist the vibration and friction of the outdoor unit and environmental corrosion, extend the service life of the clip, and further ensure the long-term stable clamping effect of the fixed structure.
[0034] See Figures 2-5 In the above embodiment, the tooth groove 13 is provided in several groups, and the tooth groove 13 is distributed equidistantly and closely. All groups of tooth groove 13 are adapted to the locking teeth 14. The equidistant and closely distributed design can flexibly adjust the wrapping length of the flexible clamping tape 5 according to the diameter of the copper pipe. At the same time, all tooth grooves 13 are adapted to the locking teeth 14, which means that no matter which position the clamping tape is adjusted to, the locking teeth 14 can form a deep engagement with the corresponding tooth groove 13. Combined with the elastic force of the spring 11, a reliable self-locking structure is formed, which effectively prevents the engagement from loosening due to the vibration of the air conditioner outdoor unit, and further ensures the stable clamping force of the flexible clamping tape 5 on the copper pipe.
[0035] See Figure 2 , Figure 4 and Figure 5 In the above embodiment, the spring 11 is provided in two sets, and both sets of spring 11 and spring sheet 6 are made of manganese steel. Manganese steel has excellent high elasticity, fatigue resistance and high and low temperature resistance, and can withstand continuous deformation for a long time without easy elastic decay.
[0036] Example 2: To prevent the flexible cartridge from shifting and eventually disengaging from the teeth, Example 2 is an improvement on Example 1. (See attached document.) Figure 1 , Figure 2 , Figure 3 and Figure 5 On the other side of the copper tube clamp 1, there is an anti-deviation frame 7. The anti-deviation frame 7 can provide lateral support for the flexible card 5, ensuring that the contact surface between the card 5 and the copper tube always maintains complete contact, preventing insufficient local clamping force due to card deviation. In addition, it works with the interlocking structure of the pressing part 10 and the tooth groove 13 to improve the stability of the overall fixing structure.
[0037] The implementation principle of this utility model is as follows: First, during the copper pipe fixing stage, the worker only needs to attach the copper pipe clamp 1 to the surface of the copper pipe, and then insert the flexible clip 5 through the anti-deviation frame 7 into the pressing part 10. The clip is smoothly inserted with the help of the inclined structure at the bottom of the clip tooth 14. At the same time, the anti-deviation frame 7 can effectively limit the deviation of the flexible clip 5. When the flexible clip 5 is attached to the copper pipe, the elastic force of the spring 11 can continuously push the pressing part 10 and the clip tooth 14 to tightly engage in the tooth groove 13, which can clamp the copper pipe. Second, during the temperature sensor 4 assembly and temperature measurement assurance stage, the temperature sensor 4 is inserted into the sensor receiving part. Inside section 2, the spring 6, with its high elasticity and fatigue resistance, exerts a continuous and stable pressure on the sensor, forcing the sensor probe to maintain a gapless contact with the surface of the copper tube, completely solving the sensor displacement problem caused by vibration and laying the foundation for accurate temperature measurement. The glass fiber cotton insulation layer 12 wrapped around the outer surface of the mounting section 3 and the sensor housing section 2 can block the heat transfer from external environmental temperature changes (such as summer sun exposure and winter low temperature) and the heat-generating components (compressor, fan motor) inside the outdoor unit with its extremely low thermal conductivity, so that the sensor can focus only on collecting the temperature signal of the copper tube and eliminate the temperature measurement deviation caused by external interference.
[0038] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A temperature sensor fixing structure for an air conditioner, comprising a copper tube clamp (1), characterized in that: The top of the copper tube clamp (1) is provided with a sensor receiving part (2), the top of the sensor receiving part (2) is provided with a mounting part (3), the inner wall of the mounting part (3) is fixed with a spring piece (6), the outer surface of the mounting part (3) and the sensor receiving part (2) is covered with a heat insulation layer (12), a flexible card (5) is connected to one side of the bottom of the copper tube clamp (1), a toothed groove (13) is provided on one side of the flexible card (5), a mounting bracket (8) is fixed to one side of the copper tube clamp (1), and a pressing part (10) is connected to the inner copper tube connecting shaft (9) of the mounting bracket (8), a locking tooth (14) is provided on one side of the pressing part (10), and a copper tube spring (11) on one side of the pressing part (10) is connected to the copper tube clamp (1).
2. The temperature sensor fixing structure for an air conditioner according to claim 1, characterized in that: A temperature sensor (4) is inserted inside the sensor housing (2), and the bottom of the spring (6) abuts against the temperature sensor (4).
3. The temperature sensor fixing structure for an air conditioner according to claim 1, characterized in that: The heat insulation layer (12) is made of glass fiber cotton material.
4. The temperature sensor fixing structure for an air conditioner according to claim 1, characterized in that: An anti-deviation bracket (7) is provided on the other side of the copper tube clamp (1).
5. The temperature sensor fixing structure for an air conditioner according to claim 1, characterized in that: The flexible cassette (5) is movably connected to the copper tube clamp (1) via a fixed shaft, and the flexible cassette (5) is made of nylon 66 material.
6. The temperature sensor fixing structure for an air conditioner according to claim 1, characterized in that: The tooth groove (13) is provided in several groups, and if the groups of tooth grooves (13) are distributed at equal intervals and closely, the groups of tooth grooves (13) are all adapted to the locking teeth (14).
7. The temperature sensor fixing structure for an air conditioner according to claim 1, characterized in that: The copper tube clamp (1), the sensor receiving part (2), and the elastic mounting part (3) are integrally formed.
8. The temperature sensor fixing structure for an air conditioner according to claim 1, characterized in that: The spring (11) is provided in two sets, and both sets of springs (11) and spring pieces (6) are made of manganese steel.