Thermal protection switch test equipment
By using the conductive columns and mechanical linkage control of automated testing equipment, the problems of manual operation damage and high voltage risk in thermal protection switch testing have been solved, realizing an efficient and safe testing pipeline.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-11
- Publication Date
- 2026-03-31
AI Technical Summary
Existing thermal protection switch testing equipment is prone to damaging product contacts during manual operation, lacks high-voltage protection, poses a risk of electric shock, and has low testing efficiency.
An automated testing device was designed, which includes a feeding track, a discharging track, and a loading and unloading mechanism. It uses conductive columns to perform current, withstand voltage, and resistance tests, and controls the contact and separation of the conductive columns through mechanical linkage to avoid manual operation.
Ensure product integrity, prevent electric shock accidents, improve testing efficiency and data reliability, and achieve a continuous and rapid automated testing pipeline.
Smart Images
Figure CN224066950U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automatic testing equipment technology, and specifically to a thermal protection switch testing device. Background Technology
[0002] Thermal protection switches are core safety components of low-voltage electrical equipment. Also known as thermal relays, overload protectors, or temperature switches, they are automatic switching devices used to protect electrical equipment from damage due to overheating.
[0003] The current, withstand voltage, and resistance performance tests of thermal protection switches are mandatory pre-shipment inspections that directly determine the product's safety, reliability, and compliance. Currently, performance testing of thermal protection switches involves manually transferring them to a testing station on a product testing bench, followed by sorting the tested switches into good and bad products. This manual transfer process can damage the switch contacts, affecting the product's usability. Furthermore, the withstand voltage test requires high-voltage AC current, and traditional single-station equipment lacks robust high-voltage protection and interlocking mechanisms. Accidental contact with high-voltage terminals during manual handling can easily lead to electric shock accidents.
[0004] In view of this, there is an urgent need to design a thermal protection switch testing device to solve the shortcomings of existing thermal protection switch testing devices. Utility Model Content
[0005] To address the aforementioned problems, this utility model provides a thermal protection switch testing device, comprising a feeding track, a discharging track, and a loading / unloading mechanism. A switch testing mechanism is provided on the outer side of the feeding track and the discharging track. The switch testing mechanism includes a test mechanism base plate, a test horizontal movement force source connected to the test mechanism base plate, a test horizontal movement plate driven by the test horizontal movement force source, a test vertical movement force source connected to the test horizontal movement plate, a test vertical movement plate driven by the test vertical movement force source, and a test bracket located on one side of the test vertical movement force source. A test station is provided on the test bracket, and a first conductive post is connected to the test bracket. A second conductive post is connected to the test vertical movement plate. The first and second conductive posts are used to apply test electrical signals to the thermal protection switch at the test station. The loading / unloading mechanism is used to transfer the thermal protection switch on the feeding track to the test station, and to transfer the tested thermal protection switch from the test station to the discharging track.
[0006] In one possible implementation, a material detection bracket is provided on one side of the test bracket, and a first detection probe is connected to the material detection bracket.
[0007] In one possible implementation, a material pressure column is connected to the test vertical plate, which presses against the thermal protection switch when the thermal protection switch is being tested.
[0008] In one possible implementation, the first conductive post is fixed to the test bracket and faces the test station. When the thermal protection switch is tested, the first conductive post and the second conductive post clamp the contacts of the thermal protection switch.
[0009] In one possible implementation, the switch testing mechanism is provided in multiple sets, and the test station on the same switch testing mechanism is provided in multiple sets, and the loading and unloading range of the loading and unloading mechanism covers all the switch testing mechanisms.
[0010] In one possible implementation, the loading and unloading mechanism includes a loading and unloading bracket, a rotary robotic arm connected to the loading and unloading bracket, a rotary plate driven by the rotary robotic arm, a plurality of loading and unloading lifting power sources connected to the rotary plate, a loading and unloading lifting plate driven by the loading and unloading lifting power sources, a loading and unloading clamping power source connected to the loading and unloading lifting plate, and loading and unloading clamping claws driven by the loading and unloading clamping power sources.
[0011] In one possible implementation, the number of the loading and unloading grippers is the same as the number of the test stations on the switch testing mechanism.
[0012] In one possible implementation, a material conveying mechanism is also included, which includes a material conveying power source, a material conveying wheel assembly driven by the material conveying power source, and a material conveying belt connected to the material conveying wheel assembly, wherein the feed track and the discharge track are both located on the material conveying belt.
[0013] In one possible implementation, a baffle plate is provided between the feed track and the discharge track, and a feeding position is provided on the side of the baffle plate near the feed track. A second detection probe is provided on one side of the material conveyor belt, and the second detection probe is directly opposite the feeding position.
[0014] In one possible implementation, there are two of both the first conductive post and the second conductive post.
[0015] The operation mode of the thermal protection switch testing equipment in this technical solution is as follows: The loading and unloading mechanism transfers the thermal protection switch on the feeding track to the testing station. At this time, one side of the contact of the thermal protection switch under test is in contact with one end of the first conductive post. The test horizontal movement force source and the test vertical movement force source drive the second conductive post to move, so that the second conductive post is in contact with the other side of the contact of the thermal protection switch under test. The test voltage is applied to the contact of the thermal protection switch under test through the first conductive post and the second conductive post to realize the test of the current, withstand voltage and resistance of the thermal protection switch. After the test is completed, the loading and unloading mechanism transfers the thermal protection switch on the testing station to the discharge track.
[0016] Compared with the prior art, the technical solution provided by this utility model has the following advantages:
[0017] This technical solution's thermal protection switch testing equipment replaces manual transfer with an automated loading and unloading mechanism, avoiding physical damage to the thermal protection switch contacts during manual operation. This ensures the integrity and performance stability of the product upon leaving the factory, guaranteeing the safe operation of low-voltage electrical equipment from the source. Furthermore, the testing process is fully automated, requiring no manual contact with the testing station. The mechanical linkage controls the contact and separation of the conductive posts, effectively isolating high-voltage areas and preventing electric shock accidents caused by accidental human contact.
[0018] The automated production line design of the thermal protection switch testing equipment in this technical solution enables continuous and rapid testing cycles, reducing downtime caused by manual intervention and improving production efficiency. The switch testing mechanism uses horizontal and vertical force sources to drive the conductive columns, ensuring tight and reliable contact between the test contacts and the thermal protection switch contacts. This avoids poor contact or positional deviations that may occur with traditional manual wiring, thereby improving the repeatability and reliability of test data. Attached Figure Description
[0019] Figure 1 This is a perspective view of the thermal protection switch testing device according to an embodiment of the present invention.
[0020] Figure 2 This is a perspective view of the switch testing mechanism according to an embodiment of the present utility model.
[0021] Figure 3 This is a schematic diagram of the switch testing mechanism in an embodiment of the present invention before the thermal protection switch is loaded.
[0022] Figure 4 This is a schematic diagram of the switch testing mechanism in an embodiment of the present invention during the testing of a thermal protection switch.
[0023] Figure 5 This is an exploded view of the test bracket and thermal protection switch according to an embodiment of the present invention.
[0024] Figure 6This is a cross-sectional view of the switch testing mechanism of this utility model during thermal protection switch testing.
[0025] Figure 7 This is a perspective view of the loading and unloading mechanism in an embodiment of this utility model.
[0026] Figure 8 This is a perspective view of the material conveying mechanism according to an embodiment of the present utility model.
[0027] Figure 9 This is a partial schematic diagram of the material conveying mechanism in an embodiment of the present utility model. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. The accompanying drawings are for illustrative purposes only, representing schematic diagrams only, not actual object drawings, and should not be construed as limiting this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0029] Combined with appendix Figure 1 To be continued Figure 9 This utility model provides a thermal protection switch testing device, comprising a feeding track 1, a discharging track 2, and a loading / unloading mechanism 3. A switch testing mechanism 4 is provided on the outer side of the feeding track 1 and the discharging track 2. The switch testing mechanism 4 includes a test mechanism base plate 41, a test horizontal movement force source 42 connected to the test mechanism base plate 41, a test horizontal movement plate 43 driven by the test horizontal movement force source 42, a test vertical movement force source 44 connected to the test horizontal movement plate 43, a test vertical movement plate 45 driven by the test vertical movement force source 44, and a test vertical movement plate 45 located at the test vertical movement force source 43. A test bracket 46 is located on one side of source 44. A test station 461 is provided on the test bracket 46. A first conductive post 47 is connected to the test bracket 46. A second conductive post 48 is connected to the test vertical moving plate 45. The first conductive post 47 and the second conductive post 48 are used to apply test electrical signals to the thermal protection switch 10 on the test station 461. The loading and unloading mechanism 3 is used to transfer the thermal protection switch 10 on the feeding track 1 to the test station 461, and to transfer the thermal protection switch 10 that has completed the test from the test station 461 to the discharge track 2.
[0030] Since the thermal protection switch 10 requires a certain amount of time to perform the three performance tests of current, withstand voltage and resistance, the switch testing mechanism 4 can be set in multiple groups. For example, in this embodiment, the switch testing mechanism 4 is set in 6 groups to make the testing cycle of the switch testing mechanism 4 compatible with the loading and unloading cycle of the loading and unloading mechanism 3.
[0031] In this embodiment, the test station 461 is for carrying the thermal protection switch 10 under test, and the structure of the test station 461 is adapted to carry the thermal protection switch 10 under test.
[0032] In this embodiment, the test horizontal force source 42 and the test vertical force source 44 are used to drive the position of the second conductive post 48 to move, so as to facilitate the loading and unloading mechanism 3 to load and unload the thermal protection switch 10, and the switch testing mechanism 4 to test the thermal protection switch 10.
[0033] In this embodiment, the thermal protection switch testing equipment operates as follows: the loading and unloading mechanism 3 transfers the thermal protection switch 10 on the feeding track 1 to the testing station 461. At this time, one side of the contact 12 of the thermal protection switch 10 under test is in contact with one end of the first conductive post 47. The test horizontal force source 42 and the test vertical force source 44 drive the second conductive post 48 to move, so that the second conductive post 48 is in contact with the other side of the contact 12 of the thermal protection switch 10 under test. The test voltage is applied to the contact 12 of the thermal protection switch 10 under test through the first conductive post 47 and the second conductive post 48 to realize the testing of the current, withstand voltage and resistance of the thermal protection switch 10. After the test is completed, the loading and unloading mechanism 3 transfers the thermal protection switch 10 on the testing station 461 to the discharge track 2.
[0034] The end of the discharge track 2 is equipped with a screening mechanism for good and defective products, but it will not be described in detail in this embodiment.
[0035] In this embodiment, as shown in the appendix Figure 2 To be continued Figure 6 As shown, a material detection bracket 9 is provided on one side of the test bracket 46. A first detection probe 410 is connected to the material detection bracket 49. The first detection probe 410 is used to detect whether the thermal protection switch 10 on the test station 461 is installed in place.
[0036] In this embodiment, as shown in the appendix Figure 2 To be continued Figure 6 As shown, a material pressure column 411 is connected to the test vertical moving plate 45. When the thermal protection switch 10 is tested, the material pressure column 411 presses against the thermal protection switch 10. The material pressure column 411 can be made of rubber.
[0037] In this embodiment, as shown in the appendix Figure 2To be continued Figure 6 As shown, the first conductive post 47 is fixed on the test bracket 46 and faces the test station 461. When the thermal protection switch 10 is tested, the first conductive post 47 and the second conductive post 48 clamp the contact 12 of the thermal protection switch 10.
[0038] In this embodiment, conductive posts with upper and lower mating are used to test the thermal protection switch 10 to ensure tight and reliable contact between the test contacts and the thermal protection switch contacts. This avoids poor contact or positional deviation that may be caused by traditional manual wiring, thereby improving the repeatability and reliability of the test data.
[0039] In this embodiment, the switch testing mechanism 4 is provided in 6 groups, and the test station 461 on the same switch testing mechanism 4 is provided in 4 groups. The loading and unloading range of the loading and unloading mechanism 3 covers all the switch testing mechanisms 4.
[0040] In this embodiment, as shown in the appendix Figure 7 As shown, the loading and unloading mechanism 3 includes a loading and unloading bracket 31, a rotary robotic arm 32 connected to the loading and unloading bracket 31, a rotary plate 33 driven by the rotary robotic arm 32, a plurality of loading and unloading lifting power sources 34 connected to the rotary plate 33, a loading and unloading lifting plate 35 driven by the loading and unloading lifting power sources 34, a loading and unloading clamping power source 36 connected to the loading and unloading lifting plate 35, and loading and unloading clamping claws 37 driven by the loading and unloading clamping power sources 36. The rotary robotic arm 32 is a multi-axis rotary robot.
[0041] In this embodiment, the number of loading and unloading clamping claws 37 is the same as the number of test stations 461 on the switch test mechanism 4, that is, there are also 4 sets of loading and unloading clamping claws 37 to realize the synchronous loading and unloading of the thermal protection switch 10.
[0042] In this embodiment, as shown in the appendix Figure 8 As shown, it also includes a material conveying mechanism 5, which includes a material conveying power source 51, a material conveying wheel assembly 52 driven by the material conveying power source 51, and a material conveying belt 53 connected to the material conveying wheel assembly 52. The feeding track 1 and the discharging track 2 are both located on the material conveying belt 53. That is, the feeding track 1 and the discharging track 2 share a set of conveying mechanisms, saving equipment costs.
[0043] In this embodiment, as shown in the appendix Figure 9As shown, a baffle plate 54 is provided between the feeding track 1 and the discharging track 2. A feeding position 55 is provided on the side of the baffle plate 54 near the feeding track 1. A second detection probe 56 is provided on one side of the material conveyor belt 53. The second detection probe 56 is directly opposite the feeding position 55. The second detection probe 56 is used to detect whether a thermal protection switch 10 has reached the feeding position 55.
[0044] In this embodiment, since the thermal protection switch 10 has two contacts 12, both the first conductive post 47 and the second conductive post 48 have two contacts.
[0045] This utility model of thermal protection switch testing equipment replaces manual transfer with an automated loading and unloading mechanism, avoiding physical damage to the thermal protection switch contacts during manual operation, ensuring the integrity and performance stability of the product upon leaving the factory, and guaranteeing the safe operation of low-voltage electrical equipment from the source. Furthermore, the testing process is fully automated; the automated production line design enables continuous and rapid testing cycles, reducing downtime due to manual intervention and improving production efficiency. No manual contact with the testing station is required, and the contact and separation of the conductive posts are controlled by mechanical linkage, effectively isolating high-voltage areas and preventing electric shock accidents caused by accidental human contact, thus complying with electrical safety standards.
[0046] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model, or direct / indirect applications in other related technical fields, should be included within the scope of protection of the claims of this utility model.
Claims
1. A thermal protection switch testing device comprising a feeding track, a discharging track and a feeding and discharging mechanism, characterized in that, The outer side of the feeding track and the discharging track is provided with a switch testing mechanism, the switch testing mechanism comprises a testing mechanism bottom plate, a testing horizontal moving power source connected to the testing mechanism bottom plate, a testing horizontal moving plate driven by the testing horizontal moving power source, a testing vertical moving power source connected to the testing horizontal moving plate, a testing vertical moving plate driven by the testing vertical moving power source and a testing support located on one side of the testing vertical moving power source, the testing support is provided with a testing station, the testing support is connected with a first conductive column, the testing vertical moving plate is connected with a second conductive column, and the first conductive column and the second conductive column are used for applying a test electric signal to a thermal protection switch on the testing station. The feeding and discharging mechanism is used for transferring the thermal protection switch on the feeding track to the testing station and transferring the thermal protection switch after testing from the testing station to the discharging track.
2. A thermal protection switch testing apparatus according to claim 1, wherein One side of the testing support is provided with a material detection support, and the material detection support is connected with a first detection probe.
3. A thermal protection switch testing apparatus according to claim 1, wherein The testing vertical moving plate is connected with a material pressing column, and the material pressing column presses the thermal protection switch when the thermal protection switch is tested.
4. A thermal protection switch testing apparatus according to claim 1, wherein The first conductive column is fixed on the testing support, and the first conductive column faces the testing station, and the first conductive column and the second conductive column clamp the contact pin of the thermal protection switch when the thermal protection switch is tested.
5. A thermal protection switch testing apparatus according to claim 1, wherein The switch testing mechanism is provided with multiple groups, the testing stations on the same switch testing mechanism are provided with multiple testing stations, and the feeding and discharging range of the feeding and discharging mechanism covers all the switch testing mechanisms.
6. A thermal protection switch testing apparatus according to claim 5, wherein, The feeding and discharging mechanism comprises a feeding and discharging support, a rotating mechanical arm connected to the feeding and discharging support, a rotating plate driven by the rotating mechanical arm, a plurality of feeding and discharging lifting power sources connected to the rotating plate, a feeding and discharging lifting plate driven by the feeding and discharging lifting power sources, a feeding and discharging clamping power source connected to the feeding and discharging lifting plate and a feeding and discharging clamping finger claw driven by the feeding and discharging clamping power source.
7. A thermal protection switch testing apparatus according to claim 6, wherein The number of the feeding and discharging clamping finger claws is consistent with the number of the testing stations on the switch testing mechanism.
8. A thermal protection switch testing device according to any one of claims 1 to 7, characterized in that Further comprising a material conveying mechanism, the material conveying mechanism comprises a material conveying power source, a material conveying wheel set driven by the material conveying power source and a material conveying belt connected to the material conveying wheel set, and the feeding track and the discharging track are located on the material conveying belt.
9. A thermal protection switch testing apparatus according to claim 8, wherein, A blocking plate is arranged between the feeding track and the discharging track, one side of the blocking plate close to the feeding track is provided with a feeding position, one side of the material conveying belt is provided with a second detection probe, and the second detection probe faces the feeding position.
10. A test apparatus for a thermal protection switch according to any one of claims 1 to 7, characterized in that The first conductive column and the second conductive column are both provided with two.