A surface mount temperature sensor

Abstract

The utility model discloses a surface mount type temperature sensor belongs to temperature measurement field, including the shell, the shell inside fixedly connected with the circuit board, and the circuit board electricity coupling has the condenser, micro -hydropower generator and temperature sensor, and the left and right ends of micro -hydropower generator are respectively communicated with the drain pipe and the water inlet pipe, and the water inlet diaphragm is provided in the one end of drain pipe, and the water inlet sleeve pipe is sleeved in the one end of drain pipe, and the water inlet pipe is sleeved in the one end of water inlet sleeve pipe, and the conversion barrel is communicated in the one end of water inlet pipe, and the barrel cover is fixedly connected in the both ends of conversion barrel, and the upper spring and lower spring are fixedly connected in the both ends barrel cover inner portion respectively, and the piston is fixedly connected in the one end of upper spring and lower spring.

Description

Technical Field

[0001] This utility model relates to the field of temperature measurement technology, and in particular to a surface-mount temperature sensor. Background Technology

[0002] A surface-mount temperature sensor is a sensor designed to be directly mounted and tightly fitted to the surface of an object to measure its temperature. It measures temperature by conducting heat through physical contact.

[0003] To address the need for temperature measurement at the automotive brake discs, a surface-mount temperature sensor needs to be installed. However, in this scenario, there is no need to monitor the brake disc temperature when the vehicle is not running; the brake disc temperature only needs to be detected while the vehicle is in motion.

[0004] Existing surface-mount sensors rely on external power supply and signal transmission lines. Under braking disc conditions, the instantaneous extreme high temperature generated by braking events can easily cause thermal degradation and melting of the wire insulation sheath, leading to short circuits and sensor failure.

[0005] Therefore, a surface-mount temperature sensor is proposed. Utility Model Content

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A surface-mount temperature sensor includes a housing, inside which a circuit board is fixedly connected. The circuit board is electrically coupled to a capacitor, a miniature hydroelectric generator, and a temperature sensor.

[0008] The micro hydroelectric generator is connected to a drain pipe and a water inlet pipe at its left and right ends, respectively. A water inlet diaphragm is provided at one end of the drain pipe, and a water inlet sleeve is fitted at one end of the drain pipe. A water inlet pipe is fitted at one end of the water inlet sleeve, and a conversion tank is connected at one end of the conversion tank. A tank lid is fixedly connected to both ends of the conversion tank. An upper spring and a lower spring are fixedly connected inside the tank lids at both ends, respectively. A piston is fixedly connected to one end of the upper spring and the lower spring. A water outlet pipe is connected to the side of the conversion tank. A water outlet diaphragm is provided at one end of the water outlet pipe, and a water outlet sleeve is fitted at one end of the water outlet pipe. The inner side of one end of the water outlet sleeve is fitted onto the outer side of the water inlet pipe.

[0009] Preferably, the interior of the outer shell is filled with resin, a fixing plate is fixedly connected to the side of the outer shell, and a top cover is fixedly connected to the top of the outer shell.

[0010] Preferably, the piston is fixedly connected to the bottom of the upper spring and the lower spring at both ends, and the piston side is slidably connected to the inside of the conversion barrel.

[0011] Preferably, two of each of the water outlet pipe, water outlet diaphragm, and water outlet sleeve are provided, and the inner sides of the two water outlet sleeves are both sleeved on the side of the water inlet pipe.

[0012] Preferably, there are two of each of the water inlet pipe, water inlet diaphragm, and water inlet sleeve, with the inner sides of both water inlet sleeves fitted onto the side of the drain pipe.

[0013] Preferably, the conversion tank, the inlet pipe, and the outlet pipe are provided with an aqueous solution inside.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. The system converts vibration kinetic energy into reciprocating mechanical energy of a piston, and relies on its up and down stroke to drive a one-way valve diaphragm structure, guiding the internal water to form a directional flow, which in turn drives a micro hydroelectric generator to cut magnetic field lines to generate induced current, ultimately directly powering the sensor.

[0016] 2. The dual-channel design can significantly reduce the damping effect of the fluid working medium on the piston movement, thereby improving the resonance response efficiency of the piston and the car tire. The circuit board can realize online analysis and identification of the wheel vibration frequency by monitoring the amplitude-frequency characteristics of the output current of the micro hydroelectric generator. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a surface-mount temperature sensor proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of a surface-mount temperature sensor proposed in this utility model;

[0019] Figure 3 This is a cross-sectional view of the internal structure of a surface-mount temperature sensor proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the converter barrel of a surface-mount temperature sensor proposed in this utility model;

[0021] Figure 5 This is a cross-sectional view of the structure of the converter barrel of a surface-mount temperature sensor proposed in this utility model.

[0022] Figure 6 This is an exploded view of the structure of the converter barrel of a surface-mount temperature sensor proposed in this utility model.

[0023] In the diagram: 1. Outer shell; 11. Top cover; 12. Fixing plate; 2. Conversion tank; 21. Tank lid; 211. Upper spring; 212. Lower spring; 22. Piston; 23. Water outlet pipe; 231. Water outlet diaphragm; 24. Water outlet sleeve; 25. Water inlet sleeve; 26. Water inlet pipe; 3. Miniature hydroelectric generator; 31. Water inlet pipe; 32. Drain pipe; 321. Water inlet diaphragm; 33. Circuit board; 331. Capacitor; 4. Temperature sensor. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1-6 A surface-mount temperature sensor includes a housing 1, a circuit board 33 fixedly connected inside the housing 1, and a capacitor 331, a miniature hydroelectric generator 3 and a temperature sensor 4 electrically coupled to the circuit board 33.

[0026] The micro hydroelectric generator 3 has a drain pipe 32 and an inlet pipe 31 connected to its left and right ends, respectively. One end of the drain pipe 32 is equipped with an inlet diaphragm 321, and the other end of the drain pipe 32 is fitted with an inlet sleeve 25. The other end of the inlet sleeve 25 is fitted with an inlet pipe 26, and the other end of the inlet pipe 26 is connected to a conversion tank 2. The two ends of the conversion tank 2 are fixedly connected with tank lids 21. The inside of the two end lids 21 is fixedly connected with an upper spring 211 and a lower spring 212, respectively. The other end of the upper spring 211 and the lower spring 212 is fixedly connected with a piston 22. The side of the conversion tank 2 is connected to an outlet pipe 23, and one end of the outlet pipe 23 is equipped with an outlet diaphragm 231. The other end of the outlet pipe 23 is fitted with an outlet sleeve 24, and the inner side of the outlet sleeve 24 is fitted onto the outer side of the inlet pipe 31.

[0027] It should be noted that the inlet diaphragm 321 and the outlet diaphragm 231 are made of silicone and are wrapped with a lightweight iron sheet. The size of the lightweight iron sheet is compatible with the size of the drain pipe 32 and the outlet pipe 23. One end of the inlet diaphragm 321 and the outlet diaphragm 231 are fixed to the opening of the drain pipe 32 and the outlet pipe 23, respectively. This allows the inlet diaphragm 321 to rotate around the opening of the drain pipe 32 only when the internal pressure of the drain pipe is high. Similarly, the outlet diaphragm 231 can only rotate around the opening of the outlet pipe 23 when the internal pressure of the outlet diaphragm 23 is greater than that of the inlet pipe 31, thus giving it the function of a one-way valve.

[0028] The micro hydroelectric generator 3 uses an F50-12 model hydroelectric generator. When water flows into the inlet pipe 31, it drives a light turbine and motor to rotate, generating electricity.

[0029] Temperature sensor 4 uses a K-type thermocouple, which is suitable for high temperature measurement. The temperature measurement range can reach 2300℃. It is widely used in industrial automation and metallurgy. Even in the face of extreme working conditions such as ultra-high temperature of brake discs, it can achieve real-time temperature measurement.

[0030] With the above technical solution, when the car is driving, the wheels will bounce up and down, which will drive the device fixed on the brake disc to vibrate up and down at the same time. Since the piston 22 inside the device is not fixed, it will slowly overcome the resistance of the water and move up and down.

[0031] When piston 22 moves upward, the space at the top of piston 22 is compressed, resulting in increased internal pressure. At this time, the water flow at the top of piston 22 will open the outlet diaphragm 231 to the right due to the pressure. The water flow will flow along the outlet sleeve 24 and the inlet pipe 31 to the micro hydro generator 3. At the same time, the space at the bottom of piston 22 increases, resulting in decreased internal pressure. At this time, the water flow inside the drain pipe 32 will squeeze the inlet diaphragm 321 to the right due to the pressure. The water flow will enter the conversion tank 2 along the inlet sleeve 25 and the inlet pipe 26. At this time, the water inside the micro hydro generator 3 will flow to the drain pipe 32.

[0032] When piston 22 moves downward, the space at the bottom of piston 22 is compressed, causing the internal pressure to increase. At this time, the water at the bottom of piston 22 will open the water outlet diaphragm 231 to the right due to the pressure. The water will flow along the water outlet sleeve 24 and the water inlet pipe 31 to the micro hydroelectric generator 3. At the same time, the space at the top of piston 22 increases, causing the internal pressure to decrease. At this time, the water flow inside the drain pipe 32 will squeeze the water inlet diaphragm 321 to the right due to the pressure. The water flow will enter the conversion tank 2 along the water inlet sleeve 25 and the water inlet pipe 26. At this time, the water inside the micro hydroelectric generator 3 will flow to the drain pipe 32. This cycle continues. When piston 22 resonates with the car tire, the water flow can reach a very high speed to drive the micro hydroelectric generator 3 to generate electricity.

[0033] Specifically, the shell 1 is filled with resin, a fixing plate 12 is fixedly connected to the side of the shell 1, and a top cover 11 is fixedly connected to the top of the shell 1. The conversion tank 2, the inlet pipe 31 and the drain pipe 32 are filled with aqueous solution. The piston 22 is fixedly connected to the bottom of the upper spring 211 and the lower spring 212 at both ends, and the piston 22 is slidably connected to the inside of the conversion tank 2. There are two outlet pipes 23, two outlet diaphragms 231 and two outlet sleeves 24. The inside of the two outlet sleeves 24 is sleeved on the side of the inlet pipe 31. Specifically, there are two inlet pipes 26, two inlet diaphragms 321 and two inlet sleeves 25. The inside of the two inlet sleeves 25 is sleeved on the side of the drain pipe 32.

[0034] Through the above technical solution, screws are used to fix the outer shell 1 to the surface of the car brake disc through the fixing plate 12, so that the stainless steel on the outer bottom is in complete contact with the surface of the brake disc. The wires used inside the device are all bare wires, and the resin fixation prevents them from shifting and causing short circuits.

[0035] Working principle:

[0036] When this utility model is in use, when the piston 22 moves upward, the space at the top of the piston 22 is compressed, resulting in increased internal pressure. At this time, the water flow at the top of the piston 22 will open the water outlet diaphragm 231 to the right due to the pressure. The water flow will flow along the water outlet sleeve 24 and the water inlet pipe 31 to the micro hydroelectric generator 3. At the same time, the space at the bottom of the piston 22 increases, resulting in decreased internal pressure. At this time, the water flow inside the drain pipe 32 will squeeze the water inlet diaphragm 321 to the right due to the pressure. The water flow will enter the conversion tank 2 along the water inlet sleeve 25 and the water inlet pipe 26. At this time, the water inside the micro hydroelectric generator 3 will flow to the drain pipe 32.

[0037] Based on the above, when piston 22 moves downward, the space at the bottom of piston 22 is compressed, resulting in increased internal pressure. At this time, the water at the bottom of piston 22 will open the water outlet diaphragm 231 to the right due to the pressure. The water will flow along the water outlet sleeve 24 and the water inlet pipe 31 to the micro hydroelectric generator 3. At the same time, the space at the top of piston 22 increases, resulting in decreased internal pressure. At this time, the water flow inside the drain pipe 32 will squeeze the water inlet diaphragm 321 to the right due to the pressure. The water flow will enter the conversion tank 2 along the water inlet sleeve 25 and the water inlet pipe 26. At this time, the water inside the micro hydroelectric generator 3 will flow to the drain pipe 32. This cycle continues. When piston 22 resonates with the car tire, the water flow can reach a very high speed to drive the micro hydroelectric generator 3 to generate electricity.

[0038] Based on the above, the micro generator inputs current into the circuit board 33 to detect the amplitude and frequency characteristics of the current, which enables online analysis and identification of the wheel vibration frequency for dynamic balance research. At the same time, the current is integrated through capacitor 331 to power the temperature sensor 4, achieving accurate measurement of brake disc temperature and self-powered operation.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A surface-mount temperature sensor, comprising a housing (1), characterized in that, A circuit board (33) is fixedly connected inside the outer shell (1), and the circuit board (33) is electrically coupled to a capacitor (331), a micro hydroelectric generator (3) and a temperature sensor (4); The micro hydroelectric generator (3) is connected to a drain pipe (32) and a water inlet pipe (31) at its left and right ends, respectively. A water inlet diaphragm (321) is installed at one end of the drain pipe (32), and a water inlet sleeve (25) is fitted onto one end of the drain pipe (32). A water inlet pipe (26) is fitted onto one end of the water inlet sleeve (25), and a conversion tank (2) is connected to one end of the water inlet pipe (26). A tank cover (21) is fixedly connected to both ends of the conversion tank (2). The tank covers (21) at both ends... 21) An upper spring (211) and a lower spring (212) are fixedly connected inside. A piston (22) is fixedly connected to one end of the upper spring (211) and the lower spring (212). A water outlet pipe (23) is connected to the side of the conversion tank (2). A water outlet diaphragm (231) is provided at one end of the water outlet pipe (23). A water outlet sleeve (24) is sleeved at one end of the water outlet pipe (23). The inner side of one end of the water outlet sleeve (24) is sleeved on the outer side of the water inlet pipe (31).

2. The surface-mount temperature sensor according to claim 1, characterized in that, The shell (1) is filled with resin, a fixing plate (12) is fixedly connected to the side of the shell (1), and a top cover (11) is fixedly connected to the top of the shell (1).

3. A surface-mount temperature sensor according to claim 1, characterized in that, The piston (22) is fixedly connected at both ends to the bottom of the upper spring (211) and the lower spring (212), respectively, and the piston (22) is slidably connected to the inside of the conversion barrel (2).

4. A surface-mount temperature sensor according to claim 1, characterized in that, Two of each of the water outlet pipe (23), water outlet diaphragm (231) and water outlet sleeve (24) are provided, and the inner sides of the two water outlet sleeves (24) are sleeved on the side of the water inlet pipe (31).

5. A surface-mount temperature sensor according to claim 1, characterized in that, Two inlet pipes (26), two inlet diaphragms (321) and two inlet sleeves (25) are provided, and the inner sides of the two inlet sleeves (25) are fitted onto the side of the drain pipe (32).

6. A surface-mount temperature sensor according to claim 1, characterized in that, The conversion tank (2), the inlet pipe (31) and the outlet pipe (32) are provided with aqueous solutions.

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