Thermal link temperature testing machine

Abstract

The utility model belongs to the technical field of thermal link temperature testing, and particularly relates to a thermal link temperature testing machine which comprises a supporting seat, a fixed seat is fixedly mounted on a chassis bottom plate, springs are mounted on the bottom sides of moving plates, a first electrode plate is fixedly mounted on the bottom side of one moving plate, and a second electrode plate is fixedly mounted on the bottom side of the other moving plate. Wherein a first electrode plate is fixedly installed on the bottom wall of one plate groove, a second electrode plate is fixedly installed on the bottom wall of one plate groove, the first electrode plate and the second electrode plate are fixedly connected with an indicating lamp through an internal circuit, a containing base is fixedly installed on the top sides of the multiple sets of movable rods, and a material collecting disc is placed on the containing base. When the thermal link is tested, molten drops on the thermal link drop down to the material collecting disc, so that an internal circuit of the indicating lamp is switched on, the indicating lamp is turned on and sends an electric signal to the display screen, the display screen records the temperature at the moment, the fusing temperature is determined, accurate testing of the thermal link is achieved through the structure, and the accuracy of the fusing temperature testing is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal fuse temperature testing, and specifically relates to a thermal fuse temperature testing machine. Background Art

[0002] A thermal fuse, also known as a temperature fuse, is a temperature sensing circuit cut-off device used for overload protection of electrical circuits. After the production and processing of the thermal fuse is completed, a temperature testing machine is required to test the fusing temperature of the thermal fuse.

[0003] A Chinese patent with the publication number CN215492140U discloses a temperature testing device for the production of temperature fuses, including a temperature tester body, a storage groove, a fixed shaft, a movable shaft, a first connecting plate, a second connecting plate, a pulling plate, an extension plate, and a water droplet buckle. The storage groove is opened on the front sides of both sides of the bottom of the temperature tester body. The fixed shaft is fixedly connected to the front side of the inner wall of the storage groove. The movable shaft is movably connected to the inside of the fixed shaft. The first connecting plate is fixedly connected to the back of the movable shaft. The second connecting plate is sleeved on the surface of the first connecting plate. The pulling plates are arranged on both sides of the second connecting plate. The extension plate is fixedly connected to the pulling plate. The water droplet buckle is fixedly connected to the side of the extension plate close to the first connecting plate. The utility model solves the problem that the existing temperature tester can only adjust and fix the use angle during use, with low use flexibility and difficulty in meeting the use angle requirements of different users for the temperature tester.

[0004] During the process of testing the fusing temperature of the thermal fuse by the existing temperature testing machine, it is judged whether the thermal fuse reaches the fusing temperature by observing the melting condition of the thermal fuse. The test is not convenient, and at the same time, the test accuracy is not good, resulting in poor accuracy of the fusing temperature test. Therefore, a thermal fuse temperature testing machine is proposed for the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the existing technology and solve the problems existing in the existing technology, the utility model proposes a thermal fuse temperature testing machine.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: A temperature tester for a thermal fuse of the present utility model includes a support base, on which a chassis is fixedly installed. A cabinet door is rotatably installed on the chassis. An intelligent electronic control operation cabinet is installed on the support base, and an indicator light is installed on the intelligent electronic control operation cabinet. The indicator light is connected to the intelligent electronic control operation cabinet through an internal circuit. A fixed seat is fixedly installed on the bottom plate of the chassis. Multiple sets of plate grooves are provided inside the fixed seat. A moving plate is slidably assembled in the plate groove. A spring is installed on the bottom side of the moving plate, and the bottom side of the spring is fixedly connected to the bottom wall of the plate groove. A first electrode piece is fixedly installed on the bottom side of one of the moving plates, and a second electrode piece is fixedly installed on the bottom wall of one of the plate grooves. The first electrode piece and the second electrode piece are fixedly connected to the indicator light through an internal circuit. A moving rod is installed on the top side of the moving plate. Multiple sets of moving rods are fixedly installed on the top side, and a placement seat is installed. An aggregate tray is placed on the placement seat. When the thermal fuse reaches the melting temperature, the thermal fuse melts, and the molten droplets on the thermal fuse drip downward onto the aggregate tray, causing the internal circuit of the indicator light to be connected. The indicator light turns on and sends an electrical signal to the display screen, and the display screen will record the temperature at this moment, thereby determining the melting temperature. This structure realizes the precise testing of the thermal fuse and is beneficial to improving the accuracy of the melting temperature test.

[0007] Preferably, a guide rail is fixedly installed on the inner wall of the top plate of the chassis. The guide rail is of a circular structure. A rotating ring is assembled inside the guide rail. A rotating plate is welded to the bottom side of the rotating ring. A rotating shaft is fixedly installed on the top side of the rotating plate, and the rotating shaft is rotatably connected to the top plate of the chassis. A motor is installed on the top plate of the chassis through a machine base. The output shaft of the motor is fixedly connected to the rotating shaft. A chute is provided on the rotating plate. A lead screw is rotatably installed on the inner wall of the chute. One end of the lead screw is welded with a knob. The thread directions on the lead screw are symmetrically opposite. Two sets of sliders are symmetrically assembled in the chute. A clamping plate is welded to the bottom side of the slider. A display screen and a switch button are installed on the intelligent electronic control operation cabinet. A temperature sensor is installed on the inner wall of the chassis. The temperature sensor is connected to the intelligent electronic control operation cabinet through an internal circuit. A heating plate is installed inside the side wall of the chassis. The thermal fuse is clamped and fixed by two sets of clamping plates. During the heating process of the thermal fuse, the motor operates to drive the rotating shaft to rotate. The rotating shaft drives the rotating plate to rotate, and the rotating plate drives the clamped thermal fuse to rotate, realizing the uniform heating of the thermal fuse and being beneficial to improving the heating uniformity of the thermal fuse.

[0008] The beneficial effects of the present utility model are as follows:

[0009] 1. When the thermal fuse reaches the fusing temperature, the thermal fuse melts, and the molten droplets on the thermal fuse drip downward onto the aggregate tray, causing the internal circuit of the indicator light to be connected. The indicator light turns on and sends an electrical signal to the display screen, which records the temperature at this moment to determine the fusing temperature. This structure realizes the accurate testing of the thermal fuse and is beneficial to improving the accuracy of the fusing temperature test.

[0010] 2. The present utility model clamps and fixes the thermal fuse through two groups of clamping plates. During the heating process of the thermal fuse, the motor operates to drive the rotating shaft to rotate, the rotating shaft drives the rotating plate to rotate, and the rotating plate drives the clamped thermal fuse to rotate, realizing the uniform heating of the thermal fuse and being beneficial to improving the heating uniformity of the thermal fuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0012] Figure 1 is a first - perspective three - dimensional structure diagram;

[0013] Figure 2 is a three - dimensional structure diagram of the placement seat;

[0014] Figure 3 is a three - dimensional structure diagram of the first electrode plate;

[0015] Figure 4 is a three - dimensional structure diagram of the rotating shaft;

[0016] Figure 5 is a three - dimensional structure diagram of the clamping plate.

[0017] In the figure: 1, support base; 2, chassis; 3, cabinet door; 4, intelligent electric control operation cabinet; 5, indicator light; 6, fixed seat; 7, plate groove; 8, moving plate; 9, spring; 10, first electrode plate; 11, second electrode plate; 12, moving rod; 13, placement seat; 14, aggregate tray; 15, guide rail; 16, rotating ring; 17, rotating plate; 18, rotating shaft; 19, motor; 20, chute; 21, lead screw; 22, knob; 23, slider; 24, clamping plate; 25, display screen; 26, switch button; 27, temperature sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1-3 As shown, a thermal fuse temperature tester includes a support base 1, on which a chassis 2 is fixedly installed. A door 3 is rotatably installed on the chassis 2. An intelligent electric control operation cabinet 4 is installed on the support base 1. An indicator light 5 is installed on the intelligent electric control operation cabinet 4. The indicator light 5 is connected to the intelligent electric control operation cabinet 4 through an internal circuit. A fixed seat 6 is fixedly installed on the bottom plate of the chassis 2. Multiple board slots 7 are opened inside the fixed seat 6. A moving plate 8 is slidably assembled in the board slot 7. A spring 9 is installed on the bottom side of the moving plate 8. The bottom side of the spring 9 is fixedly connected to the bottom wall of the board slot 7. A first electrode plate 10 is fixedly installed on the bottom side of one of the moving plates 8. A second electrode plate 11 is fixedly installed on the bottom wall of one of the board slots 7. The first electrode plate 10 and the second electrode plate 11 are fixedly connected to the indicator light 5 through an internal circuit. A moving rod 12 is installed on the top side of the moving plate 8. Multiple moving rods 12 are fixedly installed on the top side. A placement seat 13 is placed on the placement seat 13. An aggregate tray 14 is placed on the placement seat 13. During operation, in the process of the existing temperature tester testing the fusing temperature of the thermal fuse, it judges whether the thermal fuse reaches the fusing temperature by observing the melting situation of the thermal fuse. The test is not convenient, and at the same time, the accuracy of the test is not good, resulting in poor accuracy of the fusing temperature test. The test temperature and other parameters are set through the display screen 25, and the heating plate starts to heat. The heat energy provided by the heating plate gradually increases the temperature of the thermal fuse. The model of the temperature sensor 27 is PT100. The temperature sensor 27 detects the temperature inside the chassis 2 in real time and sends the temperature data to the display screen 25. When the thermal fuse reaches the fusing temperature, the thermal fuse melts, and the molten droplets on the thermal fuse drip down onto the aggregate tray 14. The gravity on the aggregate tray 14 increases, and the aggregate tray 14 presses down the placement seat 13. The placement seat 13 presses down the moving rod 12. The moving rod 12 moves downward to drive the moving plate 8 to move downward. One of the moving plates 8 drives the first electrode plate 10 thereon to move downward and contact the second electrode plate 11. At this time, the internal circuit of the indicator light 5 is connected, and the indicator light 5 is turned on and sends an electrical signal to the display screen 25. The display screen 25 will record the temperature at this moment, so as to determine the fusing temperature. The test result will be displayed on the display screen 25, and the fusing performance of the thermal fuse can be evaluated accordingly. This structure realizes the accurate test of the thermal fuse and is beneficial to improving the accuracy of the fusing temperature test.

[0020] Please refer to Figures 4-5As shown in the figure, a guide rail 15 is fixedly installed on the inner wall of the top plate of the chassis 2. The guide rail 15 is of a circular structure. A rotating ring 16 is assembled in the guide rail 15. A rotating plate 17 is welded to the bottom side of the rotating ring 16. A rotating shaft 18 is fixedly installed on the top side of the rotating plate 17. The rotating shaft 18 is rotationally connected to the top plate of the chassis 2. A motor 19 is installed on the top plate of the chassis 2 through a machine base. The output shaft of the motor 19 is fixedly connected to the rotating shaft 18. A chute 20 is formed in the rotating plate 17. A lead screw 21 is rotatably installed on the inner wall of the chute 20. A knob 22 is welded to one end of the lead screw 21. The thread directions on the lead screw 21 are symmetrically opposite. Two groups of sliders 23 are symmetrically assembled in the chute 20. A clamping plate 24 is welded to the bottom side of the slider 23. A display screen 25 and a switch button 26 are installed on the intelligent electric control operation cabinet 4. A temperature sensor 27 is installed on the inner wall of the chassis 2. The temperature sensor 27 is connected to the intelligent electric control operation cabinet 4 through an internal circuit. A heating plate is installed inside the side wall of the chassis 2. During operation, in the process of the existing temperature tester testing the fusing temperature of the thermal fuse, since the fixture is of a fixed structure, the clamped thermal fuse is in a static state, resulting in uneven heating of the thermal fuse and poor heating uniformity of the thermal fuse. By placing the thermal fuse between the two clamping plates 24 and rotating the knob 22, the lead screw 21 is driven to rotate. The lead screw 21 drives the two groups of sliders 23 on it to move relatively synchronously. The two groups of sliders 23 drive the two groups of clamping plates 24 to move relatively synchronously. The two groups of clamping plates 24 clamp and fix the thermal fuse. During the heating process of the thermal fuse, the motor 19 operates to drive the rotating shaft 18 to rotate. The rotating shaft 18 drives the rotating plate 17 to rotate. The rotating plate 17 drives the clamped thermal fuse to rotate, realizing uniform heating of the thermal fuse and being beneficial to improving the heating uniformity of the thermal fuse.

[0021] Working principle: During the process of testing the fusing temperature of the thermal fuse by the existing temperature tester, since the fixture is of a fixed structure, the clamped thermal fuse is in a static state, resulting in uneven heating of the thermal fuse and poor uniformity of heat reception of the thermal fuse. By placing the thermal fuse between two sets of clamping plates 24, turning the knob 22 drives the lead screw 21 to rotate. The lead screw 21 drives the two sets of sliders 23 on it to move relatively synchronously. The two sets of sliders 23 drive the two sets of clamping plates 24 to move relatively synchronously, and the two sets of clamping plates 24 clamp and fix the thermal fuse. During the process of heating the thermal fuse, the motor 19 operates to drive the rotating shaft 18 to rotate. The rotating shaft 18 drives the rotating plate 17 to rotate, and the rotating plate 17 drives the clamped thermal fuse to rotate, achieving uniform heating of the thermal fuse and being beneficial to improving the uniformity of heat reception of the thermal fuse. During the process of testing the fusing temperature of the thermal fuse by the existing temperature tester, it is judged whether the thermal fuse reaches the fusing temperature by observing the melting condition of the thermal fuse. The test is not convenient, and at the same time, the accuracy of the test is not good, resulting in poor accuracy of the fusing temperature test. By setting the test temperature and other parameters on the display screen 25, the heating plate starts to heat. The heat energy provided by the heating plate causes the temperature of the thermal fuse to gradually increase. The model of the temperature sensor 27 is PT100. The temperature sensor 27 detects the temperature inside the chassis 2 in real time and sends the temperature data to the display screen 25. When the thermal fuse reaches the fusing temperature, the thermal fuse melts, and the molten droplets on the thermal fuse drip down onto the aggregate tray 14. The gravity on the aggregate tray 14 increases, and the aggregate tray 14 presses down on the placement seat 13. The placement seat 13 presses down on the moving rod 12, and the moving rod 12 moves downward to drive the moving plate 8 to move downward. One of the moving plates 8 drives the first electrode plate 10 on it to move downward and contact the second electrode plate 11. At this time, the internal circuit of the indicator light 5 is connected, the indicator light 5 is turned on and sends an electrical signal to the display screen 25. The display screen 25 will record the temperature at this moment, thereby determining the fusing temperature. The test result will be displayed on the display screen 25, and the fusing performance of the thermal fuse can be evaluated accordingly. This structure realizes the accurate test of the thermal fuse and is beneficial to improving the accuracy of the fusing temperature test.

[0022] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A thermal fuse temperature tester, characterized in that: The invention comprises a support base (1), a machine box (2) is fixedly mounted on the support base (1), a machine box door (3) is rotatably mounted on the machine box (2), an intelligent electric control operation cabinet (4) is mounted on the support base (1), an indicator light (5) is mounted on the intelligent electric control operation cabinet (4), the indicator light (5) is connected to the intelligent electric control operation cabinet (4) through an internal circuit, a fixed base (6) is fixedly mounted on the bottom plate of the machine box (2), a plurality of plate slots (7) are arranged inside the fixed base (6), a movable plate (8) is slidably mounted in the plate slot (7), and the movable plate (8) is ) is installed on the bottom side of a spring (9), the bottom side of the spring (9) is fixedly connected to the bottom wall of the plate slot (7), a first electrode sheet (10) is fixedly installed on the bottom side of one of the movable plates (8), a second electrode sheet (11) is fixedly installed on the bottom wall of one of the plate slots (7), the first electrode sheet (10) and the second electrode sheet (11) are fixedly connected to the indicator light (5) through an internal circuit, a movable rod (12) is installed on the top side of the movable plate (8), a placement seat (13) is fixedly installed on the top side of multiple groups of movable rods (12), and a collecting tray (14) is placed on the placement seat (13).

2. A thermal fuse temperature tester according to claim 1, characterized in that: A guide rail (15) is fixedly mounted on the inner wall of the top plate of the chassis (2); the guide rail (15) is an annular structure, and a rotating ring (16) is installed inside the guide rail (15).

3. A thermal fuse temperature tester according to claim 2, characterized in that: A rotating plate (17) is welded to the bottom side of the rotating ring (16), a rotating shaft (18) is fixedly mounted on the top side of the rotating plate (17), and the rotating shaft (18) is rotatably connected to the top plate of the chassis (2).

4. A thermal fuse temperature tester according to claim 1, characterized in that: A motor (19) is mounted on the top plate of the chassis (2) via a base, and an output shaft of the motor (19) is fixedly connected to the rotating shaft (18).

5. A thermal fuse temperature tester according to claim 3, characterized in that: The rotating plate (17) is provided with a slide groove (20), a screw rod (21) is rotatably mounted on the inner wall of the slide groove (20), a knob (22) is welded to one end of the screw rod (21), the threads on the screw rod (21) are symmetrically opposite in direction, two groups of sliders (23) are symmetrically mounted in the slide groove (20), and a clamping plate (24) is welded to the bottom side of the slider (23).

6. A thermal fuse temperature tester according to claim 1, characterized in that: The intelligent electric control operation cabinet (4) is provided with a display screen (25) and a switch button (26); a temperature sensor (27) is provided on the inner wall of the chassis (2); the temperature sensor (27) is connected to the intelligent electric control operation cabinet (4) via an internal circuit; and a heating plate is provided inside the side wall of the chassis (2).

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