Thermal protector detection device

Abstract

The utility model discloses a thermal protector detection device, which relates to the technical field of thermal protector detection and comprises a bottom plate, an air guide mechanism is mounted on one side of the upper end face of the bottom plate, an extrusion test assembly is mounted on the air guide mechanism, a lifting mechanism is mounted on the other side of the upper end face of the bottom plate, and a detection circuit structure and a clamping assembly are mounted on the lifting mechanism. The extrusion test assembly comprises a first electric push rod, the lower end of the first electric push rod is connected with an extrusion rod, the air guide mechanism comprises a fixed cylinder fixed to the upper end of the bottom plate, an air inlet pipe is fixed to the bottom of the side wall of the fixed cylinder, and a fan is installed on the inner wall of the air inlet pipe. According to the utility model, through cooperative use of the detection circuit structure, the clamping assembly, the air guide mechanism and the extrusion test assembly, compression resistance detection can be carried out on the thermal protector, high-temperature detection can be carried out on a plurality of thermal protectors at the same temperature at the same time, the detection accuracy is ensured, the performance of the thermal protector is effectively detected, and the practicability is relatively good.

Description

Technical Field

[0001] This utility model relates to the field of thermal protector testing technology, and in particular to a thermal protector testing device. Background Technology

[0002] A thermal protector consists of two different alloys combined together. When an electric current passes through it, it heats up. Due to the different coefficients of thermal expansion of the two alloys, they inevitably bend in one direction, causing the contacts to separate and the power to be cut off. The bending speed is directly proportional to the magnitude of the current. In the production of thermal protectors, the device used to test them is called a thermal protector production testing device. Existing thermal protector production testing devices have shortcomings:

[0003] 1. During testing, it is inconvenient to test the compressive strength of the thermal protector. It is easy for the device to be damaged due to excessive force during use, making it unusable.

[0004] 2. During testing, the thermal protector cannot be heated evenly, which can lead to different temperatures for thermal protectors in the same batch, thus making it impossible to accurately test the performance of the thermal protector.

[0005] Therefore, a thermal protector detection device is provided. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a thermal protector testing device. Through the coordinated use of a detection circuit structure, clamping components, air guiding mechanism, and compression testing components, it can perform compressive strength testing on thermal protectors and simultaneously conduct high-temperature testing on multiple thermal protectors at the same temperature, ensuring testing accuracy and effectively evaluating the performance of the thermal protectors. It has good practicality and overcomes the deficiencies of existing technologies. It effectively solves the problems of existing thermal protector production testing devices, such as inconvenience in testing the compressive strength of thermal protectors, susceptibility to damage due to excessive force during use, uneven heating of thermal protectors during testing leading to inconsistent temperatures within the same batch, and inaccurate performance testing.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A thermal protector testing device includes a base plate, an air guide mechanism is installed on one side of the upper end face of the base plate, a compression test assembly is installed on the air guide mechanism, and a lifting mechanism is installed on the other side of the upper end face of the base plate, a detection circuit structure and a clamping assembly are installed on the lifting mechanism.

[0009] The compression test assembly includes a first electric push rod, and the lower end of the first electric push rod is connected to a compression rod.

[0010] The above-described scheme, through the combined use of the detection circuit structure, clamping components, air guiding mechanism, and compression testing components, allows for the pressure resistance testing of thermal protectors. Furthermore, it enables simultaneous high-temperature testing of multiple thermal protectors at the same temperature, ensuring testing accuracy and effectively assessing the performance of the thermal protectors. This approach demonstrates good practicality.

[0011] Preferably, the air guiding mechanism includes a fixed cylinder fixed to the upper end of the base plate, an air inlet pipe fixed to the bottom of the side wall of the fixed cylinder, a fan installed on the inner wall of the air inlet pipe, an exhaust pipe fixed to the top of the side wall of the fixed cylinder, exhaust holes equally spaced at the bottom end of the exhaust pipe, and an electric heating wire fixed to the inner wall of the fixed cylinder.

[0012] Preferably, one end of the air inlet pipe is fitted with a perforated cover, and a filter screen is fixed to the inner wall of the perforated cover.

[0013] Preferably, the first electric push rod is fixed to the outer wall of one end of the exhaust pipe, and the width of the extrusion rod is smaller than the width of the exhaust pipe.

[0014] Preferably, the lifting mechanism includes a second electric push rod fixed to the upper surface of the base plate, a connecting block connected to the top of the second electric push rod, and an L-shaped support plate installed on one side of the connecting block.

[0015] Preferably, the detection circuit structure includes a detection circuit board fixed to the lower end face of the L-shaped support plate, and detection sockets are provided at equal intervals on the detection circuit board. The detection circuit board is connected to an external power supply through wires.

[0016] Preferably, the clamping assembly includes a stop bar fixed to the upper surface of the L-shaped support plate, a fixing block is installed on one side of the upper surface of the L-shaped support plate, a T-shaped rod is slidably inserted into the fixing block, a clamping rod is connected to the end of the T-shaped rod facing the stop bar, and a spring is sleeved on the part of the T-shaped rod located between the clamping rod and the fixing block.

[0017] Preferably, the top of the fixed cylinder is provided with a sealing cap, and the sealing cap is connected to the fixed cylinder by bolts.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. By pushing the clamping rod to move away from the stop bar and using the clamping rod to compress the spring, the thermal protector is placed on the L-shaped support plate. Then, the clamping rod is released, and under the rebound of the spring, the clamping rod is pushed back. Then, the thermal protector is clamped by the clamping rod and the stop bar. The first electric push rod pushes the extrusion rod down, so that the extrusion rod extrudes the thermal protector, thereby performing a pressure test on the thermal protector.

[0020] 2. By turning on the electric heating wire and fan, the fixed cylinder can generate high-temperature hot air. The high-temperature hot air is evenly discharged from the exhaust port of the exhaust pipe and blown towards multiple thermal protectors, ensuring that multiple thermal protectors perform high-temperature detection at the same temperature.

[0021] In summary, by combining the detection circuit structure, clamping components, air guiding mechanism, and compression test components, thermal protectors can be subjected to pressure resistance testing. Furthermore, multiple thermal protectors can be simultaneously tested at the same temperature, ensuring testing accuracy and effectively assessing the performance of the thermal protectors. This approach demonstrates good practicality. Attached Figure Description

[0022] Figure 1 This is a first-view three-dimensional structural diagram of a thermal protector detection device proposed in this utility model.

[0023] Figure 2 This is a second-view three-dimensional structural diagram of a thermal protector detection device proposed in this utility model.

[0024] Figure 3 This is a third-view three-dimensional partial cross-sectional structural diagram of a thermal protector detection device proposed in this utility model.

[0025] Figure 4 This utility model proposes a thermal protector detection device. Figure 3 Enlarged structural diagram at point A in the middle.

[0026] In the diagram: 1. Base plate; 2. L-shaped support plate; 3. Detection socket; 4. Air inlet pipe; 5. Hollowed-out cover; 6. Filter screen; 7. Fixing cylinder; 8. Exhaust pipe; 9. Baffle bar; 10. First electric push rod; 11. Connecting block; 12. Second electric push rod; 13. Wire; 14. Extrusion rod; 15. Electric heating wire; 16. Fan; 17. Fixing block; 18. T-shaped rod; 19. Spring; 20. Clamping rod. Detailed Implementation

[0027] 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.

[0028] Example 1, referring to Figure 1-4 A thermal protector testing device includes a base plate 1, an air guide mechanism is installed on one side of the upper end face of the base plate 1, and a compression test component is installed on the air guide mechanism.

[0029] The compression test assembly includes a first electric push rod 10, and a compression rod 14 is connected to the lower end of the first electric push rod 10. The first electric push rod 10 pushes the compression rod 14 down, so that the compression rod 14 compresses the thermal protector, thereby performing a compression test on the thermal protector.

[0030] The air guiding mechanism includes a fixed cylinder 7 fixed to the upper end of the base plate 1. An air inlet pipe 4 is fixed to the bottom of the side wall of the fixed cylinder 7. A fan 16 is installed on the inner wall of the air inlet pipe 4. An exhaust pipe 8 is fixed to the top of the side wall of the fixed cylinder 7. Exhaust holes are opened at equal intervals at the bottom end of the exhaust pipe 8. An electric heating wire 15 is fixed to the inner wall of the fixed cylinder 7.

[0031] By turning on the electric heating wire 15 and the fan 16, the fixed cylinder 7 can generate high-temperature hot air, which is then evenly discharged from the exhaust port of the exhaust pipe 8.

[0032] One end of the air inlet pipe 4 is fitted with a perforated cover 5. A filter screen 6 is fixed on the inner wall of the perforated cover 5 to filter the air entering the fixed cylinder 7, thereby preventing dust from adhering to the electric heating wire 15 to a large extent.

[0033] The first electric push rod 10 is fixed to the outer wall of one end of the exhaust pipe 8. The width of the squeezing rod 14 is smaller than the width of the exhaust pipe 8 to prevent the squeezing rod 14 from blocking the air discharged from the exhaust pipe 8.

[0034] A lifting mechanism is installed on the other side of the upper end face of the base plate 1. The lifting mechanism includes a second electric push rod 12 fixed to the upper end face of the base plate 1. A connecting block 11 is connected to the top of the second electric push rod 12. An L-shaped support plate 2 is installed on one side of the connecting block 11.

[0035] The extension and retraction of the second electric push rod 12 can drive the connecting block 11 and the L-shaped support plate 2 to extend and retract.

[0036] The lifting mechanism is equipped with a detection circuit structure and a clamping assembly. The detection circuit structure includes a detection circuit board fixed to the lower end face of the L-shaped support plate 2, and detection sockets 3 are arranged at equal intervals on the detection circuit board. The detection circuit board is connected to an external power supply through wires 13.

[0037] By connecting the thermal protector's wiring to the test jack, the performance of the thermal protector can be tested using the test circuit board.

[0038] The clamping assembly includes a stop bar 9 fixed to the upper end face of the L-shaped tray 2, a fixing block 17 installed on one side of the upper end face of the L-shaped tray 2, a T-shaped rod 18 slidably inserted on the fixing block 17, a clamping rod 20 connected to one end of the T-shaped rod 18 facing the stop bar 9, and a spring 19 sleeved on the part of the T-shaped rod 18 located between the clamping rod 20 and the fixing block 17.

[0039] By pushing the clamping rod 20 to move away from the stop bar 9 and using the clamping rod 20 to compress the spring 19, the thermal protector is placed on the L-shaped support plate 2. Then, the clamping rod 20 is released, and under the rebound action of the spring 19, the clamping rod 20 is pushed back, and then the thermal protector is clamped by the clamping rod 20 and the stop bar 9.

[0040] The top of the fixed cylinder 7 is provided with a sealing cover, and the sealing cover is connected to the fixed cylinder 7 by bolts, which facilitates the inspection and maintenance of the heating wire in the fixed cylinder 7.

[0041] Working principle: By pushing the clamping rod 20 to move away from the stop rod 9 and using the clamping rod 20 to compress the spring 19, the thermal protector is placed on the L-shaped support plate 2. Then, the clamping rod 20 is released, and under the rebound action of the spring 19, the clamping rod 20 is pushed back. Then, the clamping rod 20 and the stop rod 9 simultaneously clamp the thermal protector. The first electric push rod 10 pushes the extrusion rod 14 down, so that the extrusion rod 14 extrudes the thermal protector, thereby performing a pressure test on the thermal protector. The thermal protector's wiring is plugged into the test socket, and the performance of the thermal protector can be tested using the test circuit board. By turning on the electric heating wire 15 and the fan 16, the fixed cylinder 7 can generate high-temperature hot air. The high-temperature hot air is evenly discharged from the exhaust hole of the exhaust pipe 8 and blown to multiple thermal protectors, ensuring that multiple thermal protectors are tested at the same temperature. The extension and retraction of the second electric push rod 12 can drive the connecting block 11 and the L-shaped support plate 2 to extend and retract, thereby adjusting the height of the thermal protector.

[0042] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A thermal protector detection device comprising a base plate (1), characterized in that, The upper end face of the bottom plate (1) is provided with a wind guide mechanism, the wind guide mechanism is provided with an extrusion test assembly, the other side of the upper end face of the bottom plate (1) is provided with a lifting mechanism, and the lifting mechanism is provided with a detection circuit structure and a clamping assembly; The extrusion test assembly comprises a first electric push rod (10), and the lower end of the first electric push rod (10) is connected with an extrusion rod (14).

2. The thermal protector detecting device according to claim 1, wherein The wind guide mechanism comprises a fixed cylinder (7) fixed on the upper end of the bottom plate (1), the bottom of the side wall of the fixed cylinder (7) is fixed with an air inlet pipe (4), the inner wall of the air inlet pipe (4) is provided with a fan (16), the top of the side wall of the fixed cylinder (7) is fixed with an air outlet pipe (8), the bottom end of the air outlet pipe (8) is provided with air outlet holes at equal distances, and the inner wall of the fixed cylinder (7) is fixed with an electric heating wire (15).

3. A thermal protector detection device according to claim 2, wherein One end of the air inlet pipe (4) is sleeved with a hollow cover (5), and the inner wall of the hollow cover (5) is fixed with a filter screen (6).

4. The thermal protector detecting device according to claim 2, wherein The first electric push rod (10) is fixed on the outer wall of one end of the air outlet pipe (8), and the width of the extrusion rod (14) is smaller than the width of the air outlet pipe (8).

5. The thermal protector testing device of claim 1, wherein, The lifting mechanism comprises a second electric push rod (12) fixed on the upper end face of the bottom plate (1), the top end of the second electric push rod (12) is connected with a connecting block (11), and one side of the connecting block (11) is provided with an L-shaped supporting plate (2).

6. A thermal protector testing device according to claim 5, wherein The detection circuit structure comprises a detection circuit board fixed on the lower end face of the L-shaped supporting plate (2), and the detection circuit board is provided with detection jacks (3) at equal distances, and the detection circuit board is externally connected with a power supply through wires (13).

7. The thermal protector testing device of claim 5, wherein, The clamping assembly comprises a blocking rod (9) fixed on the upper end face of the L-shaped supporting plate (2), one side of the upper end face of the L-shaped supporting plate (2) is provided with a fixed block (17), a T-shaped rod (18) is slidably inserted into the fixed block (17), one end of the T-shaped rod (18) facing the blocking rod (9) is connected with a clamping rod (20), and the portion of the T-shaped rod (18) between the clamping rod (20) and the fixed block (17) is sleeved with a spring (19).

8. The thermal protector detection device of claim 2, wherein, The top end of the fixed cylinder (7) is provided with a sealing cover, and the sealing cover is connected with the fixed cylinder (7) through bolts.

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