Performance testing device of thermal protector

Abstract

The invention discloses a thermal protector performance testing device, and relates to the technical field of performance testing, the thermal protector performance testing device comprises a testing device body, the surface of the testing device body is fixedly connected with three placing seats, and one side of each placing seat is provided with a suction blowing mechanism; the sucking and blowing mechanism comprises a sucking and blowing unit, and the sucking and blowing unit is arranged on the surface of the testing device body; the sucking and blowing mechanism further comprises an auxiliary unit, the auxiliary unit is arranged on one side of the sucking and blowing unit, according to the performance testing device of the thermal protector, the sucking and blowing unit and the auxiliary unit are used in cooperation, the purpose of improving the testing precision can be achieved, when the thermal protector is tested, the oxygen content in the testing process can be reduced, and the testing efficiency is improved. Therefore, the oxidation reaction is effectively reduced, the accuracy of the test data of the thermal protector is ensured, the test effect of the thermal protector is improved, and the accuracy and reliability of the electrical variable test of the thermal protector are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of performance testing, and specifically to a performance testing device for a thermal protector. Background Technique

[0002] Thermal protectors usually use bimetallic strips or thermistors as temperature-sensitive elements. A bimetallic strip is composed of two metals with different coefficients of thermal expansion. When the temperature rises, due to the different expansion degrees of the two metals, the bimetallic strip will bend, thereby opening or closing the contacts and cutting off or connecting the circuit.

[0003] When producing thermal protectors, a testing device is needed to test the electrical variables of the thermal protectors to ensure that they can be reliably triggered under overcurrent or overheat conditions. When the existing testing device is in use, when the current clamp clamps and energizes the circuit of the thermal protector for testing, due to the high oxygen content, the contact points are quickly oxidized to form an oxide layer, which affects the test accuracy of the thermal protector and reduces the test precision. For this reason, we propose a performance testing device for a thermal protector.

[0004] Combining the above problems, we will find that the existing testing devices on the market are difficult to avoid the above-mentioned problems simultaneously when in use, and even if they can be solved, they need to be solved by cooperating with external tools, thus unable to achieve the desired effect. Therefore, we propose a performance testing device for a thermal protector. Summary of the Invention

[0005] The purpose of the present invention is to provide a performance testing device for a thermal protector to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A performance testing device for a thermal protector, including a testing device body, three placement seats are fixedly connected to the surface of the testing device body, and a suction and blowing mechanism is arranged on one side of the placement seat; The suction and blowing mechanism includes a suction and blowing unit, and the suction and blowing unit is arranged on the surface of the testing device body; The suction and blowing mechanism further includes an auxiliary unit, the auxiliary unit is arranged on one side of the suction and blowing unit, and the auxiliary unit is used in cooperation with the suction and blowing unit; A slow clamping mechanism is arranged on the surface of the placement seat.

[0007] Preferably, the suction and blowing unit includes a mounting frame, the bottom of the mounting frame is fixedly connected to the surface of the test device body, a support shell is fixedly connected to the surface of the mounting frame, a servo motor is fixedly connected to the top of the support shell, the output end of the servo motor penetrates into the inner cavity of the support shell and is fixedly connected to a suction fan blade, four short pipes are fixedly communicated with the top of the support shell, a processing shell is arranged on the top of the support shell, the top ends of the short pipes are fixedly communicated with the bottom of the processing shell, and an oxygen diaphragm is fixedly connected to the surface of the processing shell.

[0008] Preferably, a first protective shell is fixedly connected to the inner surface of the mounting frame, the number of the first protective shells is four, a first blowing air cylinder is rotatably connected to the inner cavity of the first protective shell through a bearing, first bevel gears are fixedly sleeved at both ends of one of the first blowing air cylinders and one ends of two of the first blowing air cylinders, adjacent two of the first bevel gears are meshed with each other, a rotating rod is rotatably connected to the inner cavity of the support shell through a bearing, the number of the rotating rods is two, a third bevel gear is fixedly sleeved on the surface of the rotating rod, a second bevel gear is fixedly sleeved on the output end of the servo motor, the second bevel gear is meshed with the third bevel gear, one ends of the two rotating rods both penetrate to the outside of the support shell, first synchronous wheels are fixedly sleeved on the surfaces of one of the rotating rods and two of the first blowing air cylinders, a first synchronous belt is arranged on one side of one of the rotating rods, the number of the first synchronous belts is two, and the first synchronous belts are drivingly sleeved on the surfaces of the first synchronous wheels.

[0009] Preferably, an air delivery pipe is fixedly communicated with the surface of the processing shell, the number of the air delivery pipes is four, one end of each air delivery pipe penetrates through the mounting frame and is fixedly connected to the top of the first protective shell, and a flow guiding block is fixedly connected to the top of the test device body, and the number of the flow guiding blocks is several.

[0010] Preferably, the auxiliary unit includes a second protective shell, the second protective shell is arranged on one side of the first protective shell, the number of the second protective shells is four, two short plates are fixedly connected to one side of the second protective shell, one ends of the short plates are fixedly connected to the surface of the first protective shell, a second blowing air cylinder is rotatably connected to the inner cavity of the second protective shell through a bearing, second synchronous wheels are fixedly sleeved on the surfaces of two of the second blowing air cylinders, second synchronous belts are arranged on the surfaces of two of the second blowing air cylinders, and the second synchronous belts are drivingly sleeved on the surfaces of the second synchronous wheels and the first synchronous wheels.

[0011] Preferably, fourth bevel gears are fixedly sleeved at both ends of one of the second blowing air cylinders and one ends of two of the second blowing air cylinders, adjacent two of the fourth bevel gears are meshed with each other, and the top of the second protective shell is fixedly communicated with the air outlet end of the air delivery pipe.

[0012] Preferably, the slow clamping mechanism includes current clamps, the current clamps are fixedly connected to the surface of the placement seat, the number of the current clamps is two, a sloping plate is fixedly connected to the top of the current clamps, a cylindrical rod is rotatably connected to the surface of the current clamps through a bearing, both ends of the cylindrical rod penetrate to one side of the current clamps and are movably sleeved with torsion springs, both ends of the torsion springs are fixedly connected to the surfaces of the current clamps and the cylindrical rod respectively, a conductive clamping plate is fixedly sleeved on the surface of the cylindrical rod, and a return spring is fixedly connected between the upper clamping plate and the lower clamping plate of the current clamps.

[0013] Preferably, two support rods are fixedly connected to the inner cavity of the placement seat, a T-shaped block is movably sleeved on the surface of the support rods, a sliding rod is fixedly connected to one side of the T-shaped block, one end of the sliding rod penetrates to one side of the sloping plate, a downward pressure hole for cooperating with the sliding rod is formed in the surface of the sloping plate, and a guiding hole for cooperating with the T-shaped block is formed in the top of the placement seat.

[0014] Preferably, two rotating rods are rotatably connected to the inner cavity of the placement seat through bearings, a fourth synchronous pulley is fixedly sleeved on the surface of the rotating rods, a third synchronous pulley is fixedly sleeved on the surface of one of the rotating rods, two third synchronous belts are arranged on one side of the placement seat, the third synchronous belts are drivingly sleeved on the surfaces of the third synchronous pulley and the fourth synchronous pulley, spiral grooves and circular ring grooves are respectively formed in the surfaces of the rotating rods, the spiral grooves are communicated with the circular ring grooves, and a sliding block is slidably connected to the inner cavity of the spiral grooves, and one end of the sliding block is fixedly connected to the surface of the T-shaped block.

[0015] Preferably, a telescopic rod is fixedly connected to the inner cavity of the placement seat, a push plate is fixedly connected to one end of the telescopic rod, a pushing spring is movably sleeved on the surface of the telescopic rod, and both ends of the pushing spring are fixedly connected to the inner cavity of the placement seat and one side of the push plate respectively.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By setting the suction and blowing unit and the auxiliary unit to be used in cooperation, the present invention can achieve the purpose of improving the test accuracy. When testing the thermal protector, the oxygen content during the test can be reduced, thereby effectively reducing the oxidation reaction, ensuring the accuracy of the test data of the thermal protector, improving the test effect of the thermal protector, and thus ensuring the accuracy and reliability of the electrical variable test of the thermal protector.

[0017] 2. By setting the slow clamping mechanism, the present invention can achieve the purpose of protecting the test. When testing the thermal protector, the surge current generated instantaneously when the device is turned on and off can be effectively prevented, ensuring the stability of the current during the test, thereby improving the accuracy of the measurement data of the thermal protector and the accuracy of the test data. Description of the Drawings

[0018] Figure 1 Schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the suction and blowing mechanism structure of the present invention; Figure 3 Cross-sectional structure schematic diagram of the suction and blowing mechanism of the present invention; Figure 4 Partial top view structure schematic diagram of the suction and blowing mechanism of the present invention; Figure 5 Partial top view cross-sectional structure schematic diagram of the suction and blowing unit of the present invention; Figure 6 Partial structure schematic diagram of the suction and blowing unit of the present invention; Figure 7 Schematic diagram of the slow clamping mechanism structure of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of A in; Figure 9 Cross-sectional structure schematic diagram of the placement seat of the present invention; Figure 10 Schematic diagram of the placement seat structure of the present invention; Figure 11 Schematic diagram of the rotating rod structure of the present invention; Figure 12 Bottom-up cross-sectional structure schematic diagram of the rotating rod of the present invention; Figure 13 Schematic diagram of the current clamp structure of the present invention.

[0019] In the figure: 1. Main body of the test device; 2. Placing seat; 3. Suction and blowing mechanism; 31. Suction and blowing unit; 3101. Oxygen diaphragm; 3102. Processing shell; 3103. Mounting frame; 3104. Air pipe; 3105. Deflector; 3106. Support shell; 3107. First protective shell; 3108. First blowing air cylinder; 3109. First bevel gear; 3110. Short pipe; 3111. Servo motor; 3112. Suction fan blade; 3113. Rotating rod; 3114. First synchronous pulley; 3115. First synchronous belt; 3116. Second bevel gear; 3117. Third bevel gear; 32. Auxiliary unit; 3201. Second protective shell; 3202. Fourth bevel gear; 3203. Second blowing air cylinder; 3204. Short board; 3205. Second synchronous belt; 3206. Second synchronous pulley; 4. Slow clamping mechanism; 401. Third synchronous pulley; 402. Third synchronous belt; 403. Inclined plate; 404. Slide bar; 405. Current clamp; 406. Conductive clamping plate; 407. T-shaped block; 408. Support rod; 409. Cylindrical rod; 410. Fourth synchronous pulley; 411. Torsion spring; 412. Return spring; 413. Pressing hole; 414. Guide hole; 415. Rotating rod; 416. Spiral groove; 417. Sliding block; 418. Circular ring groove; 419. Push plate; 420. Expansion rod; 421. Pushing spring. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment 1: Please refer to Figures 1-13 , the present invention provides a technical solution: A performance test device for a thermal protector, including the main body 1 of the test device, three placing seats 2 are fixedly connected to the surface of the main body 1 of the test device, and a suction and blowing mechanism 3 is arranged on one side of the placing seat 2; The suction and blowing mechanism 3 includes a suction and blowing unit 31, and the suction and blowing unit 31 is arranged on the surface of the main body 1 of the test device; The suction and blowing mechanism 3 further includes an auxiliary unit 32, the auxiliary unit 32 is arranged on one side of the suction and blowing unit 31, and the auxiliary unit 32 is used in cooperation with the suction and blowing unit 31.

[0022] As a further limitation of the present invention, the suction and blowing unit 31 includes a mounting frame 3103. The bottom of the mounting frame 3103 is fixedly connected to the surface of the test device body 1. The surface of the mounting frame 3103 is fixedly connected to a support shell 3106. The top of the support shell 3106 is fixedly connected to a servo motor 3111. The output end of the servo motor 3111 penetrates into the inner cavity of the support shell 3106 and is fixedly connected to a suction fan blade 3112. Four short tubes 3110 are fixedly communicated with the top of the support shell 3106. A processing shell 3102 is arranged on the top of the support shell 3106. The top ends of the short tubes 3110 are fixedly communicated with the bottom of the processing shell 3102. An oxygen diaphragm 3101 is fixedly connected to the surface of the processing shell 3102. By providing the oxygen diaphragm 3101, the oxygen in the air can be filtered out and discharged, thereby reducing the oxygen content in the test space, reducing oxidation, and improving the accuracy of the test data.

[0023] The inner surface of the mounting frame 3103 is fixedly connected to a first protective shell 3107. The number of the first protective shells 3107 is four. The inner cavity of the first protective shell 3107 is rotatably connected to a first blowing air cylinder 3108 through a bearing. Fixed sleeves of first bevel gears 3109 are provided at both ends of one of the first blowing air cylinders 3108 and one end of two of the first blowing air cylinders 3108. Adjacent two first bevel gears 3109 are meshed with each other. A rotating rod 3113 is rotatably connected to the inner cavity of the support shell 3106 through a bearing. The number of the rotating rods 3113 is two. Fixed sleeves of third bevel gears 3117 are provided on the surface of the rotating rod 3113. A fixed sleeve of a second bevel gear 3116 is provided at the output end of the servo motor 3111. The second bevel gear 3116 is meshed with the third bevel gear 3117. One end of each of the two rotating rods 3113 penetrates to the outside of the support shell 3106. Fixed sleeves of first synchronous wheels 3114 are provided on the surface of one of the rotating rods 3113 and two of the first blowing air cylinders 3108. A first synchronous belt 3115 is arranged on one side of one of the rotating rods 3113. The number of the first synchronous belts 3115 is two. The first synchronous belts 3115 are sleeved on the surface of the first synchronous wheels 3114 through transmission. By providing the first blowing air cylinder 3108, an air curtain can be generated around the placing seat 2, and at the same time, the air after filtering out oxygen can be blown to the periphery of the placing seat 2, further reducing the oxygen content around the placing seat 2, thereby preventing the contact points from oxidizing during the energized test and ensuring the accuracy of the test of the electrical variable data of the thermal protector.

[0024] The surface of the processing shell 3102 is fixedly connected with an air delivery pipe 3104. The number of the air delivery pipes 3104 is four. One end of the air delivery pipe 3104 penetrates through the mounting frame 3103 and is fixedly connected with the top of the first protective shell 3107. The top of the test device body 1 is fixedly connected with a plurality of flow guiding blocks 3105. By arranging the flow guiding blocks 3105, the blown air can be guided, ensuring the formation effect of the air curtain, enabling it to better reduce the oxygen content around the placing seat 2, and thus ensuring the test effect.

[0025] The auxiliary unit 32 includes a second protective shell 3201. The second protective shell 3201 is arranged on one side of the first protective shell 3107. The number of the second protective shells 3201 is four. Two short plates 3204 are fixedly connected to one side of the second protective shell 3201. One end of the short plate 3204 is fixedly connected to the surface of the first protective shell 3107. The inner cavity of the second protective shell 3201 is rotatably connected with a second air blowing cylinder 3203 through a bearing. A second synchronous wheel 3206 is fixedly sleeved on the surface of two of the second air blowing cylinders 3203. A second synchronous belt 3205 is arranged on the surface of two of the second air blowing cylinders 3203. The second synchronous belt 3205 is sleeved on the surfaces of the second synchronous wheel 3206 and the first synchronous wheel 3114 in a transmission manner.

[0026] Fourth bevel gears 3202 are fixedly sleeved on both ends of one of the second air blowing cylinders 3203 and one end of two of the second air blowing cylinders 3203. Adjacent two fourth bevel gears 3202 are meshed with each other. The top of the second protective shell 3201 is fixedly connected with the air outlet end of the air delivery pipe 3104. By arranging the fourth bevel gears 3202, when one of the second air blowing cylinders 3203 on one side rotates, it can drive the other two second air blowing cylinders 3203 to rotate, enabling them to blow out an air curtain, thus forming an outer air curtain, further reducing the oxygen content around the placing seat 2, and thus reducing the oxidation reaction at the contact point, ensuring the effect of the electrical variable test of the thermal protector.

[0027] By arranging the combined use of the air suction and blowing unit 31 and the auxiliary unit 32, the purpose of improving the test accuracy can be achieved. When testing the thermal protector, the oxygen content during the test can be reduced, thus effectively reducing the oxidation reaction, ensuring the accuracy of the test data of the thermal protector, improving the test effect of the thermal protector, and thus ensuring the accuracy and reliability of the electrical variable test of the thermal protector.

[0028] The specific implementation of this embodiment is as follows: During the test, the suction fan blade 3112 is driven to rotate by the servo motor 3111, so as to suck the air within the range of the placement seat 2, allowing the air to enter the processing shell 3102 through the short pipe 3110 and being separated by the oxygen diaphragm 3101, enabling the oxygen to be discharged from the processing shell 3102, thereby reducing the oxygen content of the air entering the processing shell 3102. The air with a lower oxygen content is transported to the first protective shell 3107 and the second protective shell 3201 through the air delivery pipe 3104. When the servo motor 3111 operates, the third bevel gear 3117 is driven to rotate by the second bevel gear 3116, enabling the rotating rod 3113 to rotate, causing the first synchronous pulley 3114 thereon to rotate, thereby driving the first synchronous belt 3115 to rotate. Through the first synchronous belt 3115, the other two first synchronous pulleys 3114 rotate, enabling the first air blowing cylinders 3108 on both sides to rotate, thereby blowing air downward to form an air curtain. When the first air blowing cylinders 3108 on both sides rotate, the other two first air blowing cylinders 3108 are rotated again by the first bevel gear 3109, blowing out two more air curtains, so that four air curtains can be formed around the placement seat 2, thereby preventing the peripheral air from entering the periphery of the placement seat 2, reducing the oxygen content in the test space. At the same time, the air with a lower oxygen content transported by the air delivery pipe 3104 can be blown out by the first air blowing cylinders 3108, further reducing the oxygen content. When the first air blowing cylinders 3108 rotate, the first synchronous pulley 3114 thereon can drive the second synchronous belt 3205 to rotate, and then the second synchronous pulley 3206 is rotated by the second synchronous belt 3205, enabling the second air blowing cylinders 3203 on both sides to rotate, blowing out two outer air curtains. At the same time, the other two second air blowing cylinders 3203 blow out air curtains through the fourth bevel gear 3202, forming four outer air curtains, thereby further preventing the peripheral air from entering the test space. At the same time, the air with a lower oxygen content transported by the air delivery pipe 3104 follows the second air blowing cylinders 3203 to be blown out, forming an air curtain with a lower oxygen content, thereby ensuring that the oxygen content in the test space is low, reducing the oxidation degree of the contact points between the thermal protector and the current clamp 405 during the power-on test, and effectively ensuring the accuracy of the data during the test, improving the test effect of the thermal protector.

[0029] Embodiment 2: Please refer to Figures 1-13 , the present invention provides a technical solution: A performance testing device for a thermal protector, and the present invention makes corresponding improvements to the technical problems mentioned in the background art.

[0030] As a further limitation of the present invention, a slow clamping mechanism 4 is provided on the surface of the placement seat 2; The slow clamping mechanism 4 includes current clamps 405. The current clamps 405 are fixedly connected to the surface of the placement seat 2. The number of the current clamps 405 is two. An inclined plate 403 is fixedly connected to the top of the current clamps 405. A cylindrical rod 409 is rotatably connected to the surface of the current clamps 405 through a bearing. Both ends of the cylindrical rod 409 penetrate to one side of the current clamps 405 and are movably sleeved with torsion springs 411. The two ends of the torsion springs 411 are respectively fixedly connected to the surfaces of the current clamps 405 and the cylindrical rod 409. A conductive clamping plate 406 is fixedly sleeved on the surface of the cylindrical rod 409. A return spring 412 is fixedly connected between the upper clamping plate and the lower clamping plate of the current clamps 405. By setting the torsion springs 411, when the conductive clamping plate 406 clamps the thermal protector circuit, it can make it slowly and fully contact and clamp, preventing surge current from occurring due to direct full contact, and ensuring the test effect of the thermal protector.

[0031] Two support rods 408 are fixedly connected to the inner cavity of the placement seat 2. A T-shaped block 407 is movably sleeved on the surface of the support rods 408. A slide rod 404 is fixedly connected to one side of the T-shaped block 407. One end of the slide rod 404 penetrates to one side of the inclined plate 403. A downward pressure hole 413 for cooperating with the slide rod 404 is formed on the surface of the inclined plate 403. A guiding hole 414 for cooperating with the T-shaped block 407 is formed on the top of the placement seat 2. By setting the guiding hole 414, the T-shaped block 407 can be guided, enabling the T-shaped block 407 to move stably, so that it can stably press down the inclined plate 403, thus ensuring the slow clamping effect of the conductive clamping plate 406 on the thermal protector circuit, effectively ensuring the stability of current passing, and enabling it to be tested more accurately.

[0032] Two rotating rods 415 are rotatably connected to the inner cavity of the placement seat 2 through bearings. A fourth synchronous pulley 410 is fixedly sleeved on the surface of the rotating rods 415. A third synchronous pulley 401 is fixedly sleeved on the surface of one of the rotating rods 3113. Two third synchronous belts 402 are arranged on one side of the placement seat 2. The third synchronous belts 402 are sleeved on the surfaces of the third synchronous pulley 401 and the fourth synchronous pulley 410 in a transmission manner. A spiral groove 416 and an annular groove 418 are respectively formed on the surface of the rotating rod 415. The spiral groove 416 is communicated with the annular groove 418. A sliding block 417 is slidably connected to the inner cavity of the spiral groove 416. One end of the sliding block 417 is fixedly connected to the surface of the T-shaped block 407.

[0033] A telescopic rod 420 is fixedly connected to the inner cavity of the placement seat 2. A push plate 419 is fixedly connected to one end of the telescopic rod 420. A pushing spring 421 is movably sleeved on the surface of the telescopic rod 420. The two ends of the pushing spring 421 are respectively fixedly connected to the inner cavity of the placement seat 2 and one side of the push plate 419.

[0034] By setting the slow clamping mechanism 4, the purpose of protecting the test can be achieved. When testing the thermal protector, it can effectively prevent the surge current generated at the moment of device power on and off, ensure the stability of the current during the test, thereby improving the accuracy of the measurement data of the thermal protector and the precision of the test data.

[0035] The specific implementation of this embodiment is as follows: When in use, connect the current clamp 405 to the test device body 1 through a wire. Place the thermal protector to be tested in the card slot of the placement seat 2, and then pass the two wires of the thermal protector through the card slot so that they can extend to the current clamp 405. When the servo motor 3111 operates, the servo motor 3111 first rotates slowly until the slider 417 moves into the inner cavity of the circular ring groove 418, and then the servo motor 3111 starts to run rapidly. The rotating rod 3113 will rotate, so that the third synchronous wheel 401 rotates. Through the third synchronous belt 402, the fourth synchronous wheel 410 can be driven to rotate, so that the rotating rod 415 can rotate, and the slider 417 moves in the spiral groove 416, so that the slider 417 can drive the T-shaped block 407 to move on the support rod 408. At the same time, under the guiding action of the guiding hole 414, the T-shaped block 407 can move stably, push the sliding rod 404, so that it moves in the downward pressing hole 413, and apply a downward pressure on the inclined plate 403, so that the current clamp 405 can rotate, so that one end of the conductive clamping plate 406 first contacts the surface of the thermal protector circuit for power-on, and does not let it directly contact all at once to avoid instantaneous conduction, thereby effectively preventing the generation of surge current and ensuring the stability of the current. After the point contact, the slider 417 continues to move, so that the T-shaped block 407 can continue to drive the sliding rod 404 to move, so as to move to the other side of the downward pressing hole 413, and the conductive clamping plate 406 is slowly pressed down, so that the conductive clamping plate 406 is all clamped and energized with the circuit of the thermal protector for testing, preventing direct full-contact clamping and energization testing, ensuring the effect of the electrical variable test on the thermal protector, and improving the accuracy. When the conductive clamping plate 406 is slowly pressed down and rotated, the cylindrical rod 409 rotates accordingly to twist the torsion spring 411. After the sliding rod 404 moves to the other side of the downward pressing hole 413, the slider 417 moves from the spiral groove 416 into the circular ring groove 418, and at the same time squeezes the push plate 419, so that the pushing spring 421 and the telescopic rod 420 can contract, so that the slider 417 is slidably connected to the inner wall of the circular ring groove 418, and the slider 417 is located in the circular ring groove 418 and will not continue to move, so that the rotating rod 415 can continue to rotate without affecting the operation of the servo motor 3111. After the slider 417 enters the circular ring groove 418, the servo motor 3111 accelerates to run, so as to ensure that the suction fan blade 3112, the first blowing air cylinder 3108 and the second blowing air cylinder 3203 can effectively suck and blow air, so that a low-oxygen area is formed in the test space. At the same time, the sliding rod 404 can stop moving and continuously apply pressure on the inclined plate 403, so that the conductive clamping plate 406 can stably clamp and energize the circuit of the thermal protector for testing. After the test is completed, through the reverse rotation of the output end of the servo motor 3111 and at the same time through the reset of the pushing spring 421, the telescopic rod 420 is reset, so that the push plate 419 pushes the slider 417 out of the circular ring groove 418 and into the spiral groove 416.The sliding block 417 can drive the T-shaped block 407 to move back, so that the T-shaped block 407 drives the sliding rod 404 to move back, reducing the pressure on the inclined plate 403. Under the action of the torsion spring 411 and the return spring 412, the conductive clamping plate 406 and the current clamp 405 can rotate, so that the conductive clamping plate 406 moves away from the circuit of the thermal protector, so that the thermal protector can be removed, thus completing the test.

[0036] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A performance test device for a thermal protector, comprising a test device body (1), characterized in that: Three placing seats (2) are fixedly connected to the surface of the test device body (1), and a suction and blowing mechanism (3) is arranged on one side of the placing seat (2); The suction and blowing mechanism (3) includes a suction and blowing unit (31), and the suction and blowing unit (31) is arranged on the surface of the test device body (1); The suction and blowing mechanism (3) further includes an auxiliary unit (32), the auxiliary unit (32) is arranged on one side of the suction and blowing unit (31), and the auxiliary unit (32) is used in cooperation with the suction and blowing unit (31); The suction and blowing unit (31) includes a mounting frame (3103), the bottom of the mounting frame (3103) is fixedly connected to the surface of the test device body (1), a support shell (3106) is fixedly connected to the surface of the mounting frame (3103), a servo motor (3111) is fixedly connected to the top of the support shell (3106), the output end of the servo motor (3111) penetrates into the inner cavity of the support shell (3106) and is fixedly connected to a suction fan blade (3112), four short pipes (3110) are fixedly communicated with the top of the support shell (3106), a processing shell (3102) is arranged on the top of the support shell (3106), the top ends of the short pipes (3110) are fixedly communicated with the bottom of the processing shell (3102), and an oxygen diaphragm (3101) is fixedly connected to the surface of the processing shell (3102); A slow clamping mechanism (4) is arranged on the surface of the placing seat (2).

2. The performance testing device of a thermal protector according to claim 1, characterized in that: A first protective shell (3107) is fixedly connected to the inner surface of the mounting frame (3103), the number of the first protective shells (3107) is four, a first blowing air cylinder (3108) is rotatably connected to the inner cavity of the first protective shell (3107) through a bearing, first bevel gears (3109) are fixedly sleeved at both ends of one of the first blowing air cylinders (3108) and one end of two of the first blowing air cylinders (3108), adjacent two of the first bevel gears (3109) are meshed with each other, a rotating rod (3113) is rotatably connected to the inner cavity of the support shell (3106) through a bearing, the number of the rotating rods (3113) is two, a third bevel gear (3117) is fixedly sleeved on the surface of the rotating rod (3113), a second bevel gear (3116) is fixedly sleeved on the output end of the servo motor (3111), the second bevel gear (3116) is meshed with the third bevel gear (3117), one end of each of the two rotating rods (3113) penetrates to the outside of the support shell (3106), first synchronous wheels (3114) are fixedly sleeved on the surface of one of the rotating rods (3113) and the surface of two of the first blowing air cylinders (3108), a first synchronous belt (3115) is arranged on one side of one of the rotating rods (3113), the number of the first synchronous belts (3115) is two, and the first synchronous belts (3115) are sleeved on the surface of the first synchronous wheels (3114) in a transmission manner.

3. The performance testing device for a thermal protector according to claim 2, characterized in that: The surface of the processing shell (3102) is fixedly connected with a gas transmission pipe (3104). The number of the gas transmission pipes (3104) is four. One end of each gas transmission pipe (3104) penetrates through the mounting frame (3103) and is fixedly connected with the top of the first protective shell (3107). The top of the test device body (1) is fixedly connected with a diversion block (3105), and the number of the diversion blocks (3105) is several.

4. The performance testing device for a thermal protector according to claim 3, characterized in that: The auxiliary unit (32) includes a second protective shell (3201). The second protective shell (3201) is arranged on one side of the first protective shell (3107). The number of the second protective shells (3201) is four. Two short plates (3204) are fixedly connected to one side of the second protective shell (3201). One end of each short plate (3204) is fixedly connected with the surface of the first protective shell (3107). A second air blowing cylinder (3203) is rotatably connected to the inner cavity of the second protective shell (3201) through a bearing. Second synchronous wheels (3206) are fixedly sleeved on the surfaces of two of the second air blowing cylinders (3203). Second synchronous belts (3205) are arranged on the surfaces of two of the second air blowing cylinders (3203). The second synchronous belts (3205) are sleeved on the surfaces of the second synchronous wheels (3206) and the first synchronous wheels (3114) in a transmission manner.

5. The performance testing device for a thermal protector according to claim 4, characterized in that: Fourth bevel gears (3202) are fixedly sleeved on both ends of one of the second air blowing cylinders (3203) and one ends of two of the second air blowing cylinders (3203). Adjacent two of the fourth bevel gears (3202) are meshed with each other. The top of the second protective shell (3201) is fixedly connected with the air outlet end of the gas transmission pipe (3104).

6. The performance testing device for a thermal protector according to claim 2, characterized in that: The slow clamping mechanism (4) includes current clamps (405). The current clamps (405) are fixedly connected with the surface of the placement seat (2). The number of the current clamps (405) is two. A sloping plate (403) is fixedly connected to the top of the current clamps (405). A cylindrical rod (409) is rotatably connected to the surface of the current clamps (405) through a bearing. Both ends of the cylindrical rod (409) penetrate through one side of the current clamps (405) and are movably sleeved with torsion springs (411). Both ends of the torsion springs (411) are fixedly connected with the surfaces of the current clamps (405) and the cylindrical rod (409) respectively. A conductive clamping plate (406) is fixedly sleeved on the surface of the cylindrical rod (409). A return spring (412) is fixedly connected between the upper clamping plate and the lower clamping plate of the current clamps (405).

7. The performance testing device for a thermal protector according to claim 6, characterized in that: Two support rods (408) are fixedly connected to the inner cavity of the placement seat (2). A T-shaped block (407) is movably sleeved on the surface of the support rods (408). A sliding rod (404) is fixedly connected to one side of the T-shaped block (407). One end of the sliding rod (404) penetrates through one side of the sloping plate (403). A downward pressure hole (413) for cooperating with the sliding rod (404) is formed in the surface of the sloping plate (403). A guiding hole (414) for cooperating with the T-shaped block (407) is formed in the top of the placement seat (2).

8. The performance testing device for a thermal protector according to claim 7, characterized in that: The inner cavity of the placing seat (2) is rotatably connected with two rotating rods (415) through bearings. A fourth synchronous pulley (410) is fixedly sleeved on the surface of the rotating rod (415). A third synchronous pulley (401) is fixedly sleeved on the surface of one of the rotating rods (3113). Two third synchronous belts (402) are arranged on one side of the placing seat (2). The third synchronous belts (402) are sleeved on the surfaces of the third synchronous pulley (401) and the fourth synchronous pulley (410) in a transmission manner. A spiral groove (416) and an annular groove (418) are respectively formed on the surface of the rotating rod (415). The spiral groove (416) is communicated with the annular groove (418). A sliding block (417) is slidably connected in the inner cavity of the spiral groove (416). One end of the sliding block (417) is fixedly connected with the surface of a T-shaped block (407).

9. The performance testing device for a thermal protector according to claim 8, characterized in that: A telescopic rod (420) is fixedly connected in the inner cavity of the placing seat (2). One end of the telescopic rod (420) is fixedly connected with a push plate (419). A pushing spring (421) is movably sleeved on the surface of the telescopic rod (420). Two ends of the pushing spring (421) are respectively fixedly connected with the inner cavity of the placing seat (2) and one side of the push plate (419).

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