Sealing performance testing device for thermistor
By introducing sliding sealing structures and sensor controls of the upper and lower pressure seats into the thermistor sealing test device, the safety problems of staff when taking the heat-extracting melt pipes are solved, and higher testing accuracy and reliability are achieved.
Patent Information
- Application Number
- CN202422611826.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-10-28
AI Technical Summary
The existing thermistor sealing test devices lack protection during the process of staff taking the heat-extracting melting pipe, which poses safety hazards.
A test device including a body, an upper pressure seat and a lower pressure seat is designed. The upper pressure seat is driven to slide and abut with the lower pressure seat to form a closed structure. It combines sensors to detect that the worker stops moving when approaching, which increases safety and improves the testing accuracy and reliability through the sealing gasket and pressure relief groove.
It improves the safety of staff during the process of taking and releasing heat melting pipes, enhances the testing accuracy and reliability, reduces the possibility of gasket damage, and improves the stability and convenience of the test device.
Smart Images
Figure CN223229180U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of sealing test devices, and in particular to a sealing test device for a thermistor. Background Art
[0002] Thermistors are temperature-sensitive semiconductor components widely used in temperature measurement, temperature control, and temperature compensation. To use a thermistor, workers need to connect the two leads to a wire and then fuse them together using a heat-melt tube. If the thermistor's seal is insufficient, environmental contaminants such as moisture and dust can affect its proper operation.
[0003] Existing testing devices include a housing and fasteners. The housing defines a sidewall cavity, which is used to test the thermistor's leaktightness. A housing cover is installed at the opening of the test cavity, connected to the housing via fasteners. To test the thermistor's leaktightness, a worker places a hot melt tube against the inner wall of the test cavity. The worker maneuvers the testing device so that the cover approaches the sidewall cavity. The test device then performs a leaktightness test on the hot melt tube. After the test, the worker maneuvers the cover away from the test cavity, removes the hot melt tube, and replaces it with a new one.
[0004] The above-mentioned workers lack protection when taking and placing the hot-melt pipes, and their safety is easily affected by the testing equipment, which requires improvement. Utility Model Content
[0005] In order to increase the protection of workers during the process of removing and placing hot melt tubes and improve the safety of workers, the present application provides a sealing test device for thermistors.
[0006] This application provides a thermistor sealing test device, which adopts the following technical solution:
[0007] A sealing test device for a thermistor includes a body, an upper press seat and a lower press seat. The lower press seat is fixed to the side wall of the body. A test cavity is opened on the side wall of the lower press seat. The side wall of the upper press seat is slidably connected to the side wall of the body. The side wall of the body is provided with a driving member and a sensor. The driving member is used to drive the upper press seat to slide on the side wall of the body. The sensor is used to detect an obstruction and output an obstruction detection signal. The driving member is electrically connected to the sensor. The driving member receives and controls the action of the upper press seat in response to the obstruction detection signal.
[0008] By adopting the above technical solution, when the staff operates the test device to test the sealing of the hot melt tube, the staff places the hot melt tube on the inner wall of the test cavity, and the driving member operates the upper pressure seat to approach the lower pressure seat. When the side wall of the upper pressure seat abuts the side wall of the lower pressure seat, the test cavity is a closed structure. During the sealing test of the hot melt tube, when the staff approaches the machine body, the sensor detects and outputs a blocking detection signal, and the driving member receives and stops the action based on the blocking detection signal. This setting increases the protection of the staff in the process of taking and placing the hot melt tube, and improves the safety of the staff.
[0009] Optionally, a vent tube is fixed to the side wall of the lower pressure seat, the opening of the vent tube is located on the inner wall of the test cavity, and a detection component is provided on the side wall of the body, and the detection component is used to detect the air pressure inside the test cavity.
[0010] By adopting the above technical solution, when the testing device is performing testing, the vent pipe inputs gas into the inside of the test chamber. At this time, the detection component accurately detects the air pressure changes inside the test chamber, thereby judging the sealing of the hot melt tube. The setting of the detection component improves the reliability of the test.
[0011] Optionally, a first sealing gasket is fixed to the side wall of the lower pressing seat, and the first sealing gasket is close to the testing cavity.
[0012] By adopting the above technical solution, the provision of the first sealing gasket effectively improves the sealing of the test chamber, so that gas will not leak from the side of the lower pressure seat during the test, thereby improving the detection accuracy and reliability.
[0013] Optionally, a second sealing gasket is fixed to the side wall of the upper pressure seat, and the first sealing gasket and the second sealing gasket are arranged correspondingly.
[0014] By adopting the above technical solution, when the testing device tests the sealing of the hot melt tube, the first sealing gasket cooperates with the second sealing gasket to further improve the sealing of the test chamber, thereby reducing the possibility of gas leakage inside the test chamber from the side walls of the upper pressure seat and the lower pressure seat, thereby improving the test accuracy.
[0015] Optionally, the side wall of the upper press seat is also provided with the test cavity, and the test cavity located on the upper press seat is arranged opposite to the test cavity located on the lower press seat.
[0016] By adopting the above technical solution, when the testing device tests the sealing of the hot melt tube, the test cavity located on the upper pressure seat cooperates with the test cavity located on the lower pressure seat, so that the space of the hot melt tube in the test cavity is more uniform and the air pressure it is subjected to is also uniform, thereby improving the accuracy of the sealing test and reducing the test error caused by uneven air pressure.
[0017] Optionally, the side walls of the upper pressure seat and the lower pressure seat are both provided with pressure relief grooves, and the two pressure relief grooves are respectively close to the first sealing gasket and the second sealing gasket.
[0018] By adopting the above technical solution, this setting enables the testing device to discharge excess gas in the test chamber during the test, while providing space for the deformation of the first sealing gasket and the second sealing gasket, thereby improving the accuracy of the sealing test and reducing the possibility of damage to the first sealing gasket and the second sealing gasket.
[0019] Optionally, a plurality of friction bases are fixed at intervals on the side walls of the machine body, and the friction bases are close to the lower pressure seat.
[0020] By adopting the above technical solution, when the testing device tests the sealing of the hot melt tube, the body works stably on the side wall of the work table under the friction action of the friction base, thereby improving the stability of the testing device and reducing the possibility of movement of the testing device during the test, thereby increasing the accuracy of the test.
[0021] Optionally, a plurality of handles are fixed to the side walls of the body, and the handles are close to the friction base.
[0022] By adopting the above technical solution, when the staff needs to move the test device, the staff can change the position of the test device through the handle, which is convenient for the staff's operation.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. When a worker uses a test device to test the tightness of a hot-melt tube, they install the hot-melt tube onto the inner wall of the test chamber. The driver then drives the upper press seat to slide along the side wall of the machine body toward the lower press seat. When the side walls of the upper and lower press seats abut against each other, the test device measures the pressure inside the test chamber. When the worker approaches the machine body, the sensor detects and outputs a blocking detection signal. The driver receives the blocking detection signal and stops operating. This arrangement increases protection for workers when removing and placing the hot-melt tube, improving worker safety.
[0025] 2. The first sealing gasket and the second sealing gasket cooperate to seal the test chamber, reducing the possibility of gas leakage in the test chamber and improving the test accuracy of the test device;
[0026] 3. The provision of the pressure relief groove reduces the possibility of damage to the first sealing gasket and the second sealing gasket, and increases the reliability of the sealing between the first sealing gasket and the second sealing gasket. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 Schematic diagram of the overall structure of a sealing test device for a thermistor in an embodiment of the present application.
[0028] Figure 2 This Figure 1 Enlarged view of point A in the middle.
[0029] Figure 3 It is a schematic diagram of the overall structure of the upper pressing plate in the embodiment of the present application.
[0030] Figure numerals: 1. body; 2. upper pressure seat; 3. lower pressure seat; 4. test chamber; 5. driving part; 6. sensor; 7. ventilation pipe; 8. detection part; 9. first sealing gasket; 10. second sealing gasket; 11. pressure relief groove; 12. friction base; 13. handle. DETAILED DESCRIPTION
[0031] The following is combined with Figure 1-3 This application is described in further detail.
[0032] The embodiment of the present application discloses a sealing test device for a thermistor.
[0033] Reference Figure 1 A sealing test device for a thermistor includes a body 1, a friction base 12 and a handle 13. The friction base 12 is fixed to the bottom of the body 1. In the embodiment of the present application, four friction bases 12 are limited to be provided, and the four friction bases 12 are respectively located at the four corners of the body 1. The setting of the friction base 12 reduces the friction of the body 1 in the working environment and increases the stability of the test device during testing. The setting of the handle 13 makes it easy for the staff to move the test device, which increases the convenience of the test device.
[0034] Reference Figure 1 A lower press seat 3 is fixed to the side wall of the machine body 1, and an upper press seat 2 is slidably connected to the side wall of the machine body 1. The upper press seat 2 is arranged opposite the lower press seat 3. A driving member 5 is provided on the side wall of the machine body 1. In the embodiment of the present application, the driving member 5 is preferably a cylinder. The driving member 5 is located on the side of the machine body 1 close to the upper press seat 2. The driving member 5 is used to drive the upper press seat 2 to slide toward the lower press seat 3. When the test device is testing the tightness of the hot melt pipe, the staff operates the test device to work. At this time, the driving member 5 drives the upper press seat 2 close to the lower press seat 3, thereby completing the test of the hot melt pipe's tightness by the test device.
[0035] Reference Figure 2 A first sealing gasket 9 is fixed to the side wall of the lower pressure seat 3, and a test cavity 4 is opened on the side wall of the lower pressure seat 3. The first sealing gasket 9 is close to the test cavity 4. When the staff uses the testing device to test the tightness of the hot melt tube, a closed space is formed inside the test cavity 4 under the action of the first sealing gasket 9. At this time, the possibility of the gas in the test cavity 4 flowing out of the test cavity 4 is reduced, thereby increasing the accuracy of the test results.
[0036] Reference Figure 2A vent pipe 7 is fixed to the side wall of the lower pressing seat 3. The opening of the vent pipe 7 is located on the inner wall of the test cavity 4. A detection component 8 is provided on the side wall of the lower pressing seat 3. In the embodiment of the present application, the detection component 8 is preferably an air pressure detector. The detection component 8 is connected to the vent pipe 7. When testing the tightness of the hot melt pipe, the vent pipe 7 vents to the inside of the test cavity 4. At this time, the detection component 8 detects and responds to the air pressure changes inside the test cavity 4.
[0037] Reference Figure 1 and Figure 2 A sensor 6 is provided on the side wall of the body 1. In the embodiment of the present application, the sensor 6 preferably detects the grating. The sensor 6 is located between the staff and the lower pressure seat 3. When the test device is working, when the staff's body is close to the lower pressure seat 3, the sensor 6 detects and outputs a blocking detection signal. The driving member 5 receives and stops the action based on the blocking detection signal. At this time, the test device is suspended. This setting improves the safety of the staff during operation.
[0038] Reference Figure 2 and Figure 3 A second sealing gasket 10 is fixed to the side wall of the upper pressure seat 2, and the second sealing gasket 10 is arranged opposite to the first sealing gasket 9. A test cavity 4 is also provided on the side wall of the upper pressure seat 2, and the two test cavities 4 are arranged opposite to each other. The side walls of the upper pressure seat 2 and the lower pressure seat 3 are both provided with pressure relief grooves 11, and the two pressure relief grooves 11 are close to the first sealing gasket 9 and the second sealing gasket 10 respectively. When the side wall of the first sealing gasket 9 abuts the side wall of the second sealing gasket 10, the first sealing gasket 9 and the second sealing gasket 10 are deformed. Under the action of the pressure relief groove 11, the deformation process of the first sealing gasket 9 and the second sealing gasket 10 occurs on the inner wall of the pressure relief groove 11, reducing the possibility of damage to the first sealing gasket 9 and the second sealing gasket 10.
[0039] The implementation principle of a sealing test device for a thermistor in an embodiment of the present application is as follows: when a staff member uses the test device to test the sealing of a hot melt tube, the staff member places the hot melt tube on the inner wall of the test cavity 4, and then starts the test device. At this time, the driving member 5 drives the upper pressure seat 2 to slide toward the lower pressure seat 3, and the side wall of the first sealing gasket 9 abuts against the side wall of the second sealing gasket 10. The vent pipe 7 ventilates toward the interior of the test cavity 4, and the detection member 8 provides real-time feedback on the air pressure status inside the test cavity 4. When the staff member's body approaches the body 1, the sensor 6 detects and outputs a blocking detection signal, and the driving member 5 receives and stops the action based on the blocking detection signal. The test device stops working at this time. This setting increases the protection of the staff in the process of taking and placing the hot melt tube, and improves the safety of the staff.
[0040] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A sealing test device for a thermistor, characterized by: The invention comprises a machine body (1), an upper press seat (2) and a lower press seat (3), wherein the lower press seat (3) is fixed to the side wall of the machine body (1), a test cavity (4) is provided on the side wall of the lower press seat (3), the side wall of the upper press seat (2) is slidably connected to the side wall of the machine body (1), a driving member (5) and a sensor (6) are provided on the side wall of the machine body (1), the driving member (5) is used to drive the upper press seat (2) to slide on the side wall of the machine body (1), the sensor (6) is used to detect an obstruction and output an obstruction detection signal, the driving member (5) is electrically connected to the sensor (6), and the driving member (5) receives and controls the action of the upper press seat (2) in response to the obstruction detection signal.
2. The sealing test device for a thermistor according to claim 1, characterized in that: A vent pipe (7) is fixed to the side wall of the lower pressure seat (3), and the opening of the vent pipe (7) is located on the inner wall of the test cavity (4). A detection component (8) is provided on the side wall of the body (1), and the detection component (8) is used to detect the air pressure inside the test cavity (4).
3. The sealing test device for a thermistor according to claim 2, characterized in that: A first sealing gasket (9) is fixed to the side wall of the lower pressing seat (3), and the first sealing gasket (9) is close to the test cavity (4).
4. The sealing test device for a thermistor according to claim 3, characterized in that: A second sealing gasket (10) is fixed to the side wall of the upper pressure seat (2), and the first sealing gasket (9) and the second sealing gasket (10) are arranged correspondingly.
5. The sealing test device for a thermistor according to claim 4, characterized in that: The side wall of the upper press seat (2) is also provided with the test cavity (4), and the test cavity (4) located on the upper press seat (2) and the test cavity (4) located on the lower press seat (3) are arranged opposite to each other.
6. The sealing test device for a thermistor according to claim 5, characterized in that: The side walls of the upper pressure seat (2) and the lower pressure seat (3) are both provided with pressure relief grooves (11), and the two pressure relief grooves (11) are respectively close to the first sealing gasket (9) and the second sealing gasket (10).
7. The sealing test device for a thermistor according to claim 1, characterized in that: A plurality of friction bases (12) are fixed at intervals on the side wall of the machine body (1), and the friction bases (12) are close to the lower pressure seat (3).
8. The sealing test device for a thermistor according to claim 7, characterized in that: A plurality of handles (13) are fixed to the side walls of the machine body (1), and the handles (13) are close to the friction base (12).