Thin film heater lead tension test bench

Abstract

The invention relates to a thin film heater lead tension test bench applied to the technical field of tension testing, and the thin film heater lead tension test bench comprises a support frame, an induction multi-fixing mechanism and a test control system, the induction multi-fixing mechanism comprises an L-shaped multi-fixing seat fixedly installed on the support frame, and a plurality of partition plates are uniformly installed on the multi-fixing seat along a straight line; a device fixing area used for fixing the film heater is formed between every two adjacent partition plates. According to the tension test bench, synchronous testing of multiple film heaters can be achieved, the testing efficiency can be remarkably improved, when the film heaters are arranged, the film heaters can be automatically fixed, the testing efficiency can be further improved, the automation degree of testing can be improved, manual operation is reduced, the standardization of testing operation is improved, and the testing efficiency is improved. And the testing of a plurality of film heaters can be started at the same time and can be automatically timed, so that the accuracy of a test result can be prevented from being influenced by timing confusion, and the standardization of test operation can be further improved.

Description

Technical Field

[0001] The invention relates to a test bench, in particular to a thin film heater lead wire tension test bench applied in the technical field of tension testing. Background Art

[0002] In the production process of thin film heaters, the firmness of the lead solder joints is a key indicator to ensure the reliability of the device. To ensure product quality, tensile testing of the leads is an essential process.

[0003] Chinese invention patent publication number CN103149097B discloses a tensile testing device for the pin leads of electronic components. The testing device can load different tensile forces, select the timing time according to needs, is easy to carry and easy to operate.

[0004] Chinese invention patent publication number CN103575443B discloses a device for bonding wire tension testing. The invention enables adjustment of the pull hook position, thereby improving the flexibility of bonding wire tension testing.

[0005] The requirements for the thin-film heater lead tensile test are: secure the thin-film heater to a fixture and apply a tensile force of 15N to each lead for 30 minutes. After the test, the heater's appearance must meet regulatory requirements, the relative variation in resistance must not exceed ±2%, and the insulation resistance must be no less than 100MΩ at a DC voltage of 500V.

[0006] Traditional testing methods typically involve clamping thin-film heaters to an antistatic table using a vise. This approach has numerous drawbacks, including extremely low test efficiency, limited testing capacity, and a lack of standardized testing procedures. Therefore, we propose a thin-film heater lead tension test bench. Summary of the Invention

[0007] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the traditional testing method not only has extremely low testing efficiency, but can only test one product at a time, and the testing operation lacks standardization.

[0008] In order to solve the above problems, the present invention provides a thin film heater lead tension test bench, comprising a support frame, an inductive multi-fixing mechanism and a test control system, the inductive multi-fixing mechanism comprising a multi-fixing seat fixedly mounted on the support frame and arranged in an L shape, a plurality of partitions being evenly mounted on the multi-fixing seat along a straight line, a fixing area for fixing the thin film heater being formed between each two adjacent partitions, the fixing area being provided with a production suction cylinder fixedly mounted on the multi-fixing seat, and a guide suction net embedded through the multi-fixing seat and cooperating with the production suction cylinder, a production suction electric push rod being fixedly mounted in the production suction cylinder, an output end of the production suction electric push rod being fixedly connected to a production suction plate which is slidingly and sealingly connected to the production suction cylinder, a vertical plate fixedly mounted on the multi-fixing seat being provided in the fixing area, and a distance sensor being fixedly mounted on the side of the vertical plate close to the guide suction net;

[0009] The test control system includes a sensing and analysis module and a fixture control module. The distance sensor is connected to the sensing and analysis module by signal, the sensing and analysis module is connected to the fixture control module by signal, and the fixture control module is connected to the production and suction electric push rod by signal;

[0010] A coding plate is provided below the multi-fixed seat, and the length of the coding plate matches the multi-fixed seat. A de-coding electric push rod is provided below the coding plate for driving the coding plate to move up and down. The test control system also includes a de-coding timing module and a reminder alarm module. The de-coding timing module is signal-connected to the de-coding electric push rod, the fixture control module, and the reminder alarm module.

[0011] In the above-mentioned thin film heater lead tension test bench, multiple thin film heaters can be tested simultaneously, which significantly improves the test efficiency. When the thin film heaters are arranged, the thin film heaters can be automatically fixed, which not only further improves the test efficiency, but also improves the standardization of the test operation.

[0012] As a further improvement of the present application, a pendant sensing assembly is provided between the coding plate and the de-coding electric push rod. The pendant sensing assembly includes a connecting box fixedly mounted on the output end of the de-coding electric push rod. A pressure sensor is fixedly mounted in the connecting box. An inductive connecting plate is provided above the pressure sensor. A pair of inductive connecting rods are fixedly mounted on the top of the inductive connecting plate.

[0013] As a further improvement of the present application, the sensing connecting rod passes through the top outer wall of the connecting box and extends to be fixedly connected to the coding plate, and the sensing connecting rod is slidingly connected to the outer wall of the connecting box, and the upper and lower ends of the sensing connecting plate are respectively against the top inner wall of the connecting box and the pressure sensor. The test control system also includes a fall sensing analysis module, the pressure sensor is signal-connected to the fall sensing analysis module, and the fall sensing analysis module is signal-connected to the reminder alarm module.

[0014] As another improvement of the present application, the tensile test bench also includes a plurality of wire hanging accessories, which include a wire hanging tube. The top of the wire hanging tube is provided with a tube cover threadedly connected thereto, and the top of the tube cover is fixedly connected to a connecting rod.

[0015] As another improved supplement to the present application, the wire hanging accessories also include multiple heat shrink tubes, the inner diameter of the heat shrink tubes is larger than the diameter of the connecting rod and the diameter of the film heater lead, and the length of the heat shrink tubes is larger than the length of the connecting rod.

[0016] As another improved supplement of the present application, the total weight of the matching cylinder, the cylinder cover, the connecting rod and a heat shrink tube is equal to 30g.

[0017] As another improvement to the present application, a pair of positioning grooves are provided at the top of the coding plate under each fixing area, the positioning grooves match the receiving tubes, and the number of hanging wire receiving accessories is at least four times the number of fixing areas.

[0018] As another improvement of the present application, the tensile test bench also includes a heat-generating drive connection component, which includes a sealed heat-generating cylinder, an air pump, and a branch pipe. An electric heater and a temperature sensor are fixedly installed in the sealed heat-generating cylinder. The air suction end of the air pump is connected to the sealed heat-generating cylinder, and the air outlet end of the air pump is connected to the branch pipe. The side of the branch pipe away from the air pump is connected to multiple pairs of blowing pipes. The test control system also includes a drive connection control module.

[0019] As another improved supplement to the present application, a connecting rod is fixedly connected between the sealed heat generating cylinder and the coding plate, the guide pipe is located obliquely above the coding plate and is arranged parallel to the coding plate, and the length of the guide pipe matches the coding plate, the number of blowing pipes and positioning grooves is equal and corresponds one to one, the blowing pipes are located obliquely above the corresponding positioning grooves, and the drive control module is signal-connected to the air pump, electric heater, and temperature sensor.

[0020] As another improvement of the present application, a T-shaped sliding rod is provided in the fixing area, and the sliding rod is provided at the top of the multi-fixed seat, and the sliding rod passes through the multi-fixed seat and is slidably connected thereto. A spring is provided on the sliding rod, and the bottom end of the spring is against the top of the multi-fixed seat. The bottom end of the sliding rod is fixedly connected to a sensing block, and the sensing block is located obliquely above the side of the distance sensor close to the suction guide net. An air intake pipe is also provided on the sealed heat generating cylinder, and an air intake solenoid valve is provided on the air intake pipe. The drive control module is signal-connected to the air pump, electric heater, temperature sensor, air intake solenoid valve, and de-coding timing module.

[0021] In summary, through the synergistic effect of the induction multi-solid mechanism and the test control system, the tensile test bench in the present application can realize the synchronous test of multiple thin film heaters, thereby significantly improving the test efficiency, and when the thin film heaters are arranged, the thin film heaters can be automatically fixed, which can not only further improve the test efficiency, but also improve the degree of automation of the test, reduce manual operation, and thus improve the standardization of the test operation; through the joint setting of the coding plate, the de-coding electric push rod, the de-coding timing module, etc., the test of multiple thin film heaters can be started at the same time and automatically timed, without manual timing or separate timing, which can not only effectively prevent the accuracy of the test results from being affected by timing confusion, but also further reduce manual operation and further improve the standardization of the test operation; through the fall sensing component, the fall sensing The joint setting of the analysis module, etc., ensures that during the test process, when an abnormal situation such as the accidental falling of the weight occurs, the test control system will automatically warn the tester, prompting the tester to take corresponding measures in time; through the joint setting of the hanging wire accessories, heat-generating drive connection components, etc., the hanging wire accessories with weights can be automatically fixed to the lead, without the need for manual hanging of the weights, further improving the degree of automation of the test, thereby further improving the standardization of the test operation; through the joint setting of the slide rod, sensor block, spring, etc., the tester can stably trigger the corresponding mechanism through simple operations when arranging and removing the thin film heater, which can effectively avoid the mechanism from being triggered by mistake or in advance, thereby improving the reliability and stability of the tensile test bench. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of a thin film heater lead tension test bench in the first embodiment of the present application;

[0023] Figure 2 This is a structural diagram of the induction multi-solid mechanism 002 in the first embodiment of the present application;

[0024] Figure 3 This is a schematic cross-sectional view of the production and suction cylinder in the first embodiment of the present application;

[0025] Figure 4 This is a structural block diagram of the test control system in the first embodiment of the present application;

[0026] Figure 5 This is a side structural diagram of the code plate in the first embodiment of the present application;

[0027] Figure 6 This is a schematic cross-sectional view of the connection box in the first embodiment of the present application;

[0028] Figure 7 This is a structural diagram of a wire hanging accessory in the second embodiment of the present application;

[0029] Figure 8 This is a schematic cross-sectional view of the receiving tube in the second embodiment of the present application;

[0030] Figure 9 This is a schematic structural diagram of a heat-generating drive assembly in the second embodiment of the present application;

[0031] Figure 10 This is a structural block diagram of the test control system in the second embodiment of the present application;

[0032] Figure 11 This is a schematic diagram of the cross-sectional structure of the suction cylinder in the third embodiment of the present application.

[0033] Description of the numbers in the figure:

[0034] 101. Support frame; 102. Coding plate; 103. Decoding electric push rod; 104. Positioning slot; 002. Inductive multi-fixing mechanism; 201. Multi-fixing seat; 202. Partition; 203. Guide and suction net; 204. Production and suction cylinder; 205. Production and suction electric push rod; 206. Production and suction plate; 207. Vertical plate; 208. Distance sensor; 209. Sliding rod; 210. Inductive block; 211. Spring; 301. Connection box; 302. Pressure sensor; 303. Inductive connecting plate; 304. Inductive connecting rod; 401. Matching cylinder; 402. Cylinder cover; 403. Connecting rod; 404. Heat shrink tube; 501. Sealed heat-generating cylinder; 502. Air pump; 503. Guide pipe; 504. Blowing pipe; 505. Connecting rod. DETAILED DESCRIPTION

[0035] The following describes three implementation methods of the present application in detail with reference to the accompanying drawings.

[0036] The first implementation method:

[0037] Figures 1-6The invention shows a thin film heater lead tensile test bench, which includes a support frame 101, an inductive multi-fixing mechanism 002 and a test control system. The inductive multi-fixing mechanism 002 includes a multi-fixing seat 201 fixedly mounted on the support frame 101 and arranged in an L shape. A plurality of partitions 202 are evenly installed along a straight line on the multi-fixing seat 201. A fixing area for fixing the thin film heater is formed between each two adjacent partitions 202. The fixing area is provided with a suction cylinder 204 fixedly mounted on the multi-fixing seat 201, and a suction guide net 203 embedded in the multi-fixing seat 201 and arranged in conjunction with the suction cylinder 204. A suction electric push rod 205 is fixedly installed in the suction cylinder 204, and the output end of the suction electric push rod 205 is fixedly connected to a suction plate 206 which is slidingly and sealingly connected to the suction cylinder 204. The fixture area is provided with a vertical plate 207 fixedly installed on the multi-fixture seat 201, and a distance sensor 208 is fixedly installed on the side of the vertical plate 207 close to the suction guide net 203. The test control system includes an induction analysis module and a fixture control module. The distance sensor 208 is connected to the induction analysis module signal, the induction analysis module is connected to the fixture control module signal, and the fixture control module is connected to the suction electric push rod 205 signal.

[0038] During the test, the tester can place the film heater in the fixture area so that the film heater is in contact with the multi-fixture 201 and covers the guide net 203. The distance sensor 208 is used to detect the distance, and the distance data detected by the distance sensor 208 will be sent to the sensing analysis module in real time. Before placing the film heater, the distance sensor 208 detects the distance between it and the guide net 203. After placing the film heater, it will switch to detecting the distance between it and the film heater, causing the distance data detected by the distance sensor 208 to become smaller, so that the sensing analysis module can find that the tester has placed the film heater in the fixture area by analyzing the distance parameters detected by the distance sensor 208. At this time, the sensing analysis module will send a signal to the fixture control module, causing the fixture control module to control the suction electric push rod 205 to pull the suction plate 206 to move away from the guide net 203. The movement of the suction plate 206 will cause the suction plate A negative pressure is formed between 206 and the suction guide mesh 203, thereby generating suction, which in turn fixes the film heater and achieves the effect of automatically fixing the film heater. Similarly, the tester can place multiple film heaters one by one in multiple fixing areas until all the fixing areas are filled with automatically fixed film heaters. Therefore, through the synergistic effect of the sensing multi-fixing mechanism 002 and the test control system, the tensile test bench in this application can realize the synchronous testing of multiple film heaters, thereby significantly improving the test efficiency, and when arranging the film heaters, the film heaters can be automatically fixed, which can not only further improve the test efficiency, but also improve the degree of automation of the test, reduce manual operation, and thus improve the standardization of the test operation. In addition, compared with the traditional manual fixation of the film heater through a vise, the automatic fixation in this application is not only efficient and easy to operate, but can also be easily completed by one tester without pinching the film heater.

[0039] A coding plate 102 is provided below the multi-fixed seat 201. The length of the coding plate 102 matches that of the multi-fixed seat 201. A de-coding electric push rod 103 for driving the coding plate 102 to move up and down is provided below the coding plate 102. The test control system also includes a de-coding timing module and a reminder alarm module. The de-coding timing module is signal-connected to the de-coding electric push rod 103, the fixture control module, and the reminder alarm module.

[0040] After the weights are hung on the lead wires, the tester can manually hang the weights on the lead wires of the thin film heater. After the weights are hung on the lead wires, the weights are placed on the code plate 102. After all the lead wires are hung with weights, the code stripping timing module controls the code stripping electric push rod 103 to drive the code plate 102 to move downward, so that the weights are separated from the code plate 102, so that the lead wires are vertical and the weights are suspended in the air, and the test of all thin film heaters can be started at the same time. In addition, after the code plate 102 has finished moving downward, the code stripping timing module will automatically start timing, and when the timing reaches the test time (the test time is 30 minutes by default, of course, it can also be adjusted according to actual conditions), the code stripping timing module will control the code stripping electric push rod 103 to drive the code plate 102 to move upward and reset, so that the weights fall on the code plate 102 to end the hanging state of the weights, and then end the test. At the same time, the code stripping timing module will also control the reminder alarm module to emit a prompt sound to remind the tester.

[0041] Therefore, through the joint setting of the coding plate 102, the de-coding electric push rod 103, the de-coding timing module, etc., the tests of multiple thin film heaters can be started and automatically timed at the same time, without the need for manual timing or separate timing. This can not only effectively prevent the accuracy of the test results from being affected by timing confusion, but also further reduce manual operations and further improve the standardization of test operations.

[0042] In addition, in this embodiment, when the test is completed and the film heater is removed, the tester can place his palm between the distance sensor 208 and the film heater and press the film heater (with the palm facing the film heater). The tester's palm will cause the distance data detected by the distance sensor 208 to become significantly smaller again. At this time, the sensing analysis module will send a signal to the fixture control module, causing the fixture control module to control the suction and production electric push rod 205 to push the suction and production plate 206 to reset, causing the suction force to disappear, and then the film heater can be easily removed.

[0043] A fall sensing component is provided between the coding plate 102 and the de-coding electric push rod 103. The fall sensing component includes a connection box 301 fixedly mounted on the output end of the de-coding electric push rod 103. A pressure sensor 302 is fixedly mounted in the connection box 301. An inductive connection plate 303 is provided above the pressure sensor 302. A pair of inductive connection rods 304 are fixedly mounted on the top of the inductive connection plate 303. The inductive connection rods 304 pass through the top outer wall of the connection box 301 and extend to be fixedly connected to the coding plate 102. The inductive connection rods 304 are slidably connected to the outer wall of the connection box 301. The upper and lower ends of the inductive connection plate 303 are respectively against the top inner wall of the connection box 301 and the pressure sensor 302. The test control system also includes a fall sensing analysis module. The pressure sensor 302 is signal-connected to the fall sensing analysis module, and the fall sensing analysis module is signal-connected to the reminder alarm module.

[0044] The pressure sensor 302 is used to monitor the pressure applied to it by the sensing connecting plate 303, and the pressure data monitored by the pressure sensor 302 will be transmitted to the fall sensing analysis module in real time. During the test process, if some abnormal situations occur, for example, the weight accidentally falls off due to the weight being not firmly hung, the weight will fall onto the code plate 102, causing the code plate 102 to be impacted. Under the action of force transmission, the pressure on the pressure sensor 302 will increase significantly, causing the pressure data monitored by the pressure sensor 302 to fluctuate greatly. Therefore, the fall sensing analysis module can discover this abnormal situation by analyzing the pressure data monitored by the pressure sensor 302. At this time, the fall sensing analysis module will control the reminder alarm module to sound an alarm to warn the tester; therefore, through the joint setting of the fall sensing component, the fall sensing analysis module, etc., during the test process, when an abnormal situation such as the weight accidentally falling off occurs, the test control system will automatically warn the tester, prompting the tester to take corresponding measures in time.

[0045] Second implementation method:

[0046] See also Figure 7-10 , different from the first embodiment, the tensile test bench also includes a plurality of wire hanging accessories, the wire hanging accessories include a fitting tube 401, the top of the fitting tube 401 is provided with a tube cover 402 threadedly connected thereto, the top of the tube cover 402 is fixedly connected to a connecting rod 403, and the wire hanging accessories also include a plurality of heat shrink tubes 404, the inner diameter of the heat shrink tube 404 is larger than the diameter of the connecting rod 403 and the diameter of the film heater lead, and the length of the heat shrink tube 404 is larger than the length of the connecting rod 403.

[0047] The total weight of the fitting tube 401, the tube cover 402, the connecting rod 403 and a heat shrink tube 404 is equal to 30g. A pair of positioning grooves 104 opened at the top of the coding plate 102 are provided under each fixing area. The positioning grooves 104 match the fitting tube 401. The number of hanging wire fittings is at least four times the number of fixing areas.

[0048] The tensile test bench also includes a heat-generating drive connection component, which includes a sealed heat-generating cylinder 501, an air pump 502, and a branch pipe 503. An electric heater and a temperature sensor are fixedly installed in the sealed heat-generating cylinder 501. The air suction end of the air pump 502 is connected to the sealed heat-generating cylinder 501, and the air outlet end of the air pump 502 is connected to the branch pipe 503. The branch pipe 503 is connected to a plurality of pairs of air blowing pipes 504 on the side away from the air pump 502. The test control system also includes a drive control module. A fixed connecting rod 505 is fixedly connected between the sealed heat-generating cylinder 501 and the code plate 102. The branch pipe 503 is connected to the code plate 102. It is located obliquely above the coding plate 102 and parallel to the coding plate 102, and the length of the guide tube 503 matches the coding plate 102. The number of the air blowing pipe 504 and the positioning groove 104 are equal and one-to-one corresponding. The air blowing pipe 504 is located obliquely above the corresponding positioning groove 104. The drive control module is signal-connected with the air pump 502, the electric heater, and the temperature sensor. The sealed heat generating cylinder 501 is also provided with an air intake pipe, and the air intake pipe is provided with an air intake solenoid valve. The drive control module is signal-connected with the air pump 502, the electric heater, the temperature sensor, the air intake solenoid valve, and the de-coding timing module.

[0049] Applying a 15N pull to the lead requires a weight of approximately 1530g. Since the combined weight of the fitting tube 401, tube cover 402, connecting rod 403, and heat shrink tubing 404 is 30g, it is sufficient to place a 1000g weight and a 500g weight into the fitting tube 401. The tube cover 402 can be removed by rotating it, allowing the weights to be placed into the fitting tube 401.

[0050] In this embodiment, after the thin film heaters are arranged, since each thin film heater generally has two leads, two wire hanging accessories can be taken for each thin film heater and placed in two corresponding positioning grooves 104, which can serve as a positioning function. Then, a heat shrink tube 404 is placed on the connecting rod 403, and the end of the lead is inserted into the heat shrink tube 404. This process is repeated until all the leads of the thin film heaters are arranged.

[0051] The electric heater and the temperature sensor are started by the drive control module, so that the electric heater heats the air in the sealed heat generating tube 501. A target temperature is preset in the drive control module, and the temperature sensor is used to monitor the temperature. The temperature data monitored by the temperature sensor will be sent to the drive control module in real time. After the temperature in the sealed heat generating tube 501 reaches the target temperature, the drive control module will start the air pump 502 and open the air inlet solenoid valve to allow the hot air to blow to each heat shrink tube 404 through the guide tube 503 and the air blowing tube 504, so that the heat shrink tube 404 can shrink due to the heat, so that the lead wire and the connecting rod 403 can be connected through the heat shrink tube 404, and then the hanging wire accessory with the weight can be fixed to the lead wire; therefore, through the joint setting of the hanging wire accessory, the heat generating drive assembly, etc., the hanging wire accessory with the weight can be automatically fixed to the lead wire without the need for manual tying of the weight, which further improves the degree of automation of the test and further improves the standardization of the test operation.

[0052] After a certain period of time (a specific duration is preset in the drive control module), the drive control module will turn off the air pump 502, the electric heater, the temperature sensor, and the air intake solenoid valve, and send a signal to the de-coding timing module, causing the de-coding timing module to control the de-coding electric push rod 103 to drive the coding plate 102 to move downward to automatically start the test.

[0053] The plurality of wire hanger accessories can be divided into two sets, with the number of wire hanger accessories in each set being at least twice the number of the fixture zones. After the first round of testing, although the tester needs time to process the first set of wire hanger accessories and peel off the heat shrink tubing 404 from the lead wires and the connecting rod 403, the other set of wire hanger accessories can be used to conduct the next round of testing. Since one round of testing takes 30 minutes, the tester can calmly process the first set of wire hanger accessories during this period, thus not affecting the testing efficiency.

[0054] The third implementation method:

[0055] See also Figure 11 , different from the first and second embodiments, a T-shaped sliding rod 209 is provided in the fixing area, and the sliding rod 209 is provided at the top of the multi-fixing seat 201, and the sliding rod 209 passes through the multi-fixing seat 201 and is slidably connected thereto, and a spring 211 is sleeved on the sliding rod 209, and the bottom end of the spring 211 is against the top of the multi-fixing seat 201, and the bottom end of the sliding rod 209 is fixedly connected to the sensing block 210, and the sensing block 210 is located obliquely above the side of the distance sensor 208 close to the suction guide net 203.

[0056] In this embodiment, a distance parameter is preset in the sensing analysis module. The distance parameter is equal to the distance between the distance sensor 208 and the sensing block 210 when the sensing block 210 is directly in front of the distance sensor 208. When the thin film heater is arranged, the sensing analysis module will not send a signal to the fixing device control module just because the distance data detected by the distance sensor 208 becomes smaller. Instead, it will send a signal to the fixing device control module only when the distance data detected by the distance sensor 208 is equal to the distance parameter, causing the fixing device control module to control the production and suction electric push rod 205 to pull the production and suction plate 206 to move away from the suction guide mesh 203, thereby generating suction to fix the thin film heater;

[0057] Therefore, in this embodiment, when arranging the thin film heater, after the tester has placed the thin film heater, he or she can press down the slide bar 209 to move the sensing block 210 downward to directly in front of the distance sensor 208, thereby triggering the mechanism for automatically fixing the thin film heater. On the one hand, this can prevent the mechanism from being triggered by mistake, and on the other hand, it can prevent the mechanism from being triggered before the thin film heater is placed during the test, thereby affecting the fixing effect. Similarly, when removing the thin film heater after the test, the tester can also use the same operation to stably trigger the suction force to disappear, release the mechanism that fixes the thin film heater, and remove the thin film heater.

[0058] Therefore, through the joint arrangement of the slide bar 209, the sensing block 210, the spring 211, etc., the tester can stably trigger the corresponding mechanism through simple operations when placing the thin film heater and removing the thin film heater, which can effectively prevent the mechanism from being triggered by mistake or in advance, thereby improving the reliability and stability of the tensile test bench.

[0059] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A thin film heater lead tensile test bench, comprising a support frame (101), characterized in that: The invention also includes an inductive multi-fixing mechanism (002) and a test control system. The inductive multi-fixing mechanism (002) includes a multi-fixing seat (201) fixedly mounted on a support frame (101) and arranged in an L shape. A plurality of partitions (202) are evenly mounted on the multi-fixing seat (201) along a straight line. A fixing area for fixing a thin film heater is formed between each two adjacent partitions (202). The fixing area is provided with a production suction cylinder (204) fixedly mounted on the multi-fixing seat (201), and a plurality of separators (202) are embedded in the multi-fixing seat (201). 201) and is provided with a suction guide net (203) in cooperation with a suction cylinder (204); a suction electric push rod (205) is fixedly installed in the suction cylinder (204); an output end of the suction electric push rod (205) is fixedly connected to a suction plate (206) which is slidably and sealedly connected to the suction cylinder (204); a vertical plate (207) is fixedly installed on the multi-fixing seat (201) in the fixing area; a distance sensor (208) is fixedly installed on the side of the vertical plate (207) close to the suction guide net (203); The test control system includes a sensing and analysis module and a fixture control module, wherein the distance sensor (208) is connected to the sensing and analysis module by signal, the sensing and analysis module is connected to the fixture control module by signal, and the fixture control module is connected to the production and suction electric push rod (205) by signal; A coding plate (102) is provided below the multi-fixing seat (201), and the length of the coding plate (102) matches that of the multi-fixing seat (201). A de-coding electric push rod (103) for driving the coding plate (102) to move up and down is provided below the coding plate (102). The test control system further comprises a de-coding timing module and a reminder alarm module. The de-coding timing module is signal-connected to the de-coding electric push rod (103), the fixing control module, and the reminder alarm module.

2. The thin film heater lead wire tensile test bench according to claim 1, characterized in that: The fixing area is provided with a T-shaped sliding rod (209), the sliding rod (209) is provided at the top of the multi-fixing seat (201), and the sliding rod (209) passes through the multi-fixing seat (201) and is slidably connected thereto, a spring (211) is sleeved on the sliding rod (209), the bottom end of the spring (211) is against the top of the multi-fixing seat (201), and the bottom end of the sliding rod (209) is fixedly connected with a sensing block (210), and the sensing block (210) is located obliquely above the side of the distance sensor (208) close to the suction guide net (203).

3. The thin film heater lead wire tensile test bench according to claim 1, characterized in that: A pendant sensing component is provided between the coding plate (102) and the de-coding electric push rod (103), the pendant sensing component comprising a connection box (301) fixedly mounted on the output end of the de-coding electric push rod (103), a pressure sensor (302) fixedly mounted in the connection box (301), an induction connection plate (303) provided above the pressure sensor (302), and a pair of induction connection rods (304) fixedly mounted on the top end of the induction connection plate (303).

4. The thin film heater lead wire tensile test bench according to claim 3, characterized in that: The sensing connecting rod (304) passes through the top outer wall of the connection box (301) and extends to be fixedly connected to the coding plate (102), and the sensing connecting rod (304) is slidably connected to the outer wall of the connection box (301), and the upper and lower ends of the sensing connecting plate (303) are respectively against the top inner wall of the connection box (301) and the pressure sensor (302), and the test control system also includes a fall sensing analysis module, the pressure sensor (302) is signal-connected to the fall sensing analysis module, and the fall sensing analysis module is signal-connected to the reminder alarm module.

5. The thin film heater lead tensile test bench according to claim 1, characterized in that: The invention also comprises a plurality of wire hanging receiving accessories, wherein the wire hanging receiving accessories comprise a receiving tube (401), the top end of the receiving tube (401) is provided with a tube cover (402) threadedly connected thereto, and the top end of the tube cover (402) is fixedly connected to a connecting rod (403).

6. The thin film heater lead wire tensile test bench according to claim 5, characterized in that: The wire hanging fitting further comprises a plurality of heat shrink tubes (404), wherein the inner diameter of the heat shrink tubes (404) is greater than the diameter of the connecting rod (403) and the diameter of the film heater lead, and the length of the heat shrink tubes (404) is greater than the length of the connecting rod (403).

7. The thin film heater lead wire tensile test bench according to claim 6, characterized in that: The total weight of the fitting cylinder (401), the cylinder cover (402), the connecting rod (403) and a heat shrink tube (404) is equal to 30g.

8. The thin film heater lead wire tensile test bench according to claim 7, characterized in that: A pair of positioning grooves (104) are provided below each of the fixing areas and are opened on the top of the code plate (102). The positioning grooves (104) match the receiving tubes (401). The number of the hanging wire receiving accessories is at least four times the number of the fixing areas.

9. The thin film heater lead wire tensile test bench according to claim 8, characterized in that: The test control system further comprises a heat generating drive connection component, wherein the heat generating drive connection component comprises a sealed heat generating cylinder (501), an air pump (502), and a branch pipe (503); an electric heater and a temperature sensor are fixedly installed in the sealed heat generating cylinder (501); an air intake end of the air pump (502) is connected to the sealed heat generating cylinder (501); an air outlet end of the air pump (502) is connected to the branch pipe (503); a side of the branch pipe (503) away from the air pump (502) is connected to multiple pairs of air blowing pipes (504); and the test control system further comprises a drive connection control module.

10. The thin film heater lead wire tensile test bench according to claim 9, characterized in that: A connecting rod (505) is fixedly connected between the sealed heat generating cylinder (501) and the code plate (102); the guide tube (503) is located obliquely above the code plate (102) and is arranged parallel to the code plate (102); and the length of the guide tube (503) matches that of the code plate (102); the number of the blowing pipes (504) and the positioning grooves (104) are equal and one-to-one corresponding; the blowing pipes (504) are located obliquely above the corresponding positioning grooves (104); an air intake pipe is further provided on the sealed heat generating cylinder (501); an air intake solenoid valve is provided on the air intake pipe; the drive control module is signal-connected to the air pump (502), the electric heater, the temperature sensor, the air intake solenoid valve, and the de-coding timing module.

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