PTC heater testing device
By introducing a dual-row conductive fixture and various carbon brush structures into the PTC heater testing device, the problem of low efficiency in traditional testing devices is solved, enabling simultaneous power and withstand voltage testing of multiple products and reducing testing costs.
Patent Information
- Application Number
- CN202423148742.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Traditional PTC heater testing devices have low testing efficiency, leading to increased testing costs.
A PTC heater testing device was designed, comprising a conveyor line, a power testing mechanism, and a withstand voltage testing mechanism. It adopts a double-row conductive fixture and various carbon brush structures to simultaneously perform power and withstand voltage tests on the product.
It improved testing efficiency, reduced testing costs, and enabled efficient testing of multiple products simultaneously.
Smart Images
Figure CN223756813U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to PTC test equipment field, concretely is a kind of PTC heater testing device. BACKGROUND
[0002] PTC heater has thermistor inside.In the test of PTC, the power and voltage resistance performance of PTC heater need to be tested.The conventional testing device is by single column fixture of conveying line arrangement, then sequentially test product along the fixture conveying direction.This kind of test efficiency is not high, and test cost is improved.
[0003] Therefore, it is necessary to provide a kind of PTC heater testing device. SUMMARY
[0004] The utility model provides a kind of PTC heater testing device, effectively solve the problem of low efficiency of existing testing device.
[0005] The utility model discloses the technical scheme that is adopted is:
[0006] A kind of PTC heater testing device, including rack and the conveying line being set on rack, further include the power testing mechanism and voltage resistance testing mechanism being set on conveying line, the conveying line includes the driving shaft being set on one end of rack, the driven shaft being set on the other end of rack, the driving shaft being set on the other end of rack, the driving sprocket being set on driving shaft, the driven sprocket being set on driven shaft, the chain being connected with the transmission of driving sprocket and driven sprocket, the electric fixture being set on chain and the motor for driving driving shaft rotation being set on rack, two rows of electric fixtures are set on chain, the power testing mechanism includes a frame and two power testing components being set on a frame, the voltage resistance testing mechanism includes two rows of voltage resistance testing components and the frame being set on two frames.
[0007] Further, the power testing component includes the carbon brush of being fixedly set on rack and being used for the power-on of electric fixture, the power tester being set on rack, and the power tester is electrically connected with carbon brush.
[0008] Further, the voltage resistance testing component includes ammeter, a plurality of carbon brush A for the power-on of electric fixture along the conveying direction of conveying line and being set on rack, carbon brush B being set on rack and being electrically connected with ammeter, fixed plate being set on two frames, lifting frame being connected with fixed plate and being slidably lifted, the second air cylinder A for driving lifting frame lifting and being fixedly set on fixed plate, the first clamping piece for clamping product body and being fixedly set below lifting frame and the second clamping piece for clamping product line head.
[0009] Further, the pressure resistance testing mechanism further comprises a leakage current testing assembly, the leakage current testing assembly comprises a pressure resistance tester arranged on the second frame, a support arranged on the fixing plate, a fifth air cylinder arranged on the support, a connecting plate arranged at the output end of the fifth air cylinder, a first probe arranged on the connecting plate and electrically connected with the negative electrode of the pressure resistance tester, a third carbon brush arranged on the frame, and a second probe electrically connected with one of the connecting terminals of the third carbon brush, the second probe is electrically connected with the positive electrode of the pressure resistance tester.
[0010] Further, the frame is further provided with a marking mechanism, the marking mechanism comprises a crossbeam arranged on the frame and two marking assemblies arranged on the crossbeam, the marking assembly comprises a third air cylinder arranged vertically on the crossbeam and having an output end downward, a metal plate fixedly arranged at the output end of the third air cylinder, and a signal pen arranged on the metal plate, and the signal pen is arranged obliquely.
[0011] Further, the frame is further provided with a metal grille, the metal grille comprises side walls arranged on the two sides of the frame respectively and a top wall connected with the upper ends of the two side walls, and the conveying line is located below the top wall.
[0012] The beneficial effects of the utility model are as follows: the products can be simultaneously fed from the two sides of the conveying line, then the power testing mechanism and the pressure resistance testing mechanism simultaneously test the two products, and the testing efficiency can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 The overall schematic diagram of the PTC heater testing device provided by the embodiment of the application.
[0014] Figure 2 The schematic diagram of the PTC heater testing device provided by the embodiment of the application without the frame.
[0015] Figure 3 The schematic diagram of the pressure resistance testing mechanism and the conductive fixture of the PTC heater testing device provided by the embodiment of the application.
[0016] Figure 4 The schematic diagram of the second carbon brush A and the conductive fixture and the product of the PTC heater testing device provided by the embodiment of the application.
[0017] Figure 5 The schematic diagram of the conductive fixture and the marking mechanism of the PTC heater testing device provided by the embodiment of the application.
[0018] Marked in the figure: 1, rack; 2, conveying line; 21, driving shaft; 22, driven shaft; 23, chain; 24, conductive fixture; 3, power test mechanism; 4, voltage withstand test mechanism; 31, No. 1 frame; 32, power test assembly; 41, No. 2 frame; 42, voltage withstand test assembly; 322, power tester; 421, ammeter; 422, No. 2 carbon brush A; 423, No. 2 carbon brush B; 424, fixed plate; 425, lifting frame; 426, No. 2 cylinder A; 427, No. 1 clamping piece; 428, No. 2 clamping piece; 43, leakage current test assembly; 431, voltage tester; 432, support; 433, No. 5 cylinder; 434, connecting plate; 435, No. 1 probe; 436, No. 3 carbon brush; 6, marking assembly; 61, No. 3 cylinder; 62, sheet metal; 63, signal pen; 7, metal grid; 241, socket; 242, switch; 243, insulating base material; 244, copper block; 100, product; 101, product body; 102, product line head; DETAILED DESCRIPTION
[0019] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model will be described in detail below with reference to the drawings.
[0020] As shown in Figure 1 and Figure 2 , a PTC heater test device provided by the embodiment of the application, the structure includes a rack 1 and a conveying line 2 arranged on the rack 1, and further includes a power test mechanism 3 and a voltage withstand test mechanism 4 arranged on the conveying line 2, the conveying line 2 includes a driving shaft 21 arranged at one end of the rack 1, a driven shaft 22 arranged at the other end of the rack 1, a driving shaft 21 arranged at the other end of the rack 1, a driving sprocket arranged on the driving shaft 21, a driven sprocket arranged on the driven shaft 22, a chain 23 in transmission connection with the driving sprocket and the driven sprocket, a conductive fixture 24 arranged on the chain 23, and a motor arranged on the rack 1 for driving the driving shaft 21 to rotate, two rows of conductive fixtures 24 are arranged on the chain 23, the power test mechanism 3 includes a No. 1 frame 31 and two power test assemblies 32 arranged on the No. 1 frame 31, and the voltage withstand test mechanism 4 includes a No. 2 frame 41 and two rows of voltage withstand test assemblies 42 arranged on the No. 2 frame 41.
[0021] It should be noted that, as Figure 4As shown, the conductive fixture 24 is composed of an insulating base material 243, a switch 242 arranged on the insulating base material 243, a socket 241, two copper blocks 244 located at the lower end surface of the insulating base material 243, a first wire connecting the positive pole of the switch 242 and the positive pole of the socket 241, a second wire connecting one of the copper blocks 244 and the positive pole of the switch 242, a third wire connecting the other copper block 244 and the negative pole of the switch 242, and a fourth wire connecting the negative pole of the switch 242 and the negative pole of the socket 241. The wire end of the product 100 is electrically connected to the socket 241. When the positive and negative poles are connected to the two copper blocks 244 respectively and the power supply is connected, the product 100 can be powered.
[0022] In actual use, the two rows of conductive fixtures 24 of the conveying line 2 are placed with the products 100 to be tested, and then the products 100 are driven by the chain 23 to the power testing mechanism 3, and the two power testing assemblies 32 are used to test the power of the products 100 in the two rows of conductive fixtures 24 respectively, and then the products 100 are conveyed by the chain 23 to the corresponding positions of the voltage withstand testing mechanism 4 for voltage withstand testing.
[0023] In the above design, the products 100 can be loaded from both sides of the conveying line 2 at the same time, and then the power testing mechanism 3 and the voltage withstand testing mechanism 4 can test two products 100 at the same time, which can effectively improve the testing efficiency.
[0024] Specifically, as shown in Figure 2 The power testing assembly 32 includes a first carbon brush fixedly arranged on the rack 1 and used to power the conductive fixture 24, and a power tester 322 arranged on the rack 1 and electrically connected to the first carbon brush (not shown in the figure).
[0025] It should be noted that the first carbon brush has two connectors which are in contact with the two copper blocks 244 respectively. In actual use, the first carbon brush is used to power the conductive fixture 24, and the power tester 322 is used to test the power of the product 100.
[0026] In the above design, the power testing assembly 32 can quickly test the power of the product 100.
[0027] Specifically, as shown in Figure 2 and Figure 3As shown, the voltage resistance test assembly 42 includes an ammeter 421 arranged on the second frame 41, a plurality of second carbon brushes A 422 arranged on the frame 1 along the conveying direction of the conveying line 2 for energizing the conductive jig 24, a second carbon brush B 423 arranged on the frame 1 and electrically connected to the ammeter 421, a fixed plate 424 arranged on the second frame 41, a lifting frame 425 connected to the fixed plate 424 in a sliding lifting manner, a second air cylinder A 426 fixedly arranged on the fixed plate 424 for driving the lifting frame 425 to lift, a first clamping member 427 fixedly arranged below the lifting frame 425 for clamping the product 100 body, and a second clamping member 428 for clamping the product 100 wire end.
[0028] It should be noted that, as Figure 4 shown, the second carbon brush B 423 and the second carbon brush A 422 each have at least two terminals, respectively in contact with the two copper blocks 244, and the two second carbon brushes are respectively in conduction with the positive and negative poles of the ammeter 421. In actual use, the conductive jig 24 is in contact with a plurality of second carbon brushes A 422 in turn with the chain 23, assuming that the conveying line 26 stops once every ten seconds, and there are ten second carbon brushes A 422, after ten times, the load test requirement of the product 100 is reached, and then the second carbon brush B 423 is used to power the conductive jig 24, if the product 100 is qualified and no explosion occurs, the ammeter 421 will show current. Conversely, it is unqualified. When the voltage resistance test is unqualified, the second air cylinder A 426 drives the lifting frame 425 to move downward, so that the first clamping member 427 pulls out the product body 101 from the jig, and the second clamping member 428 pulls out the product wire end 102 from the socket 241.
[0029] In the above design, the structure design and specific implementation of the voltage resistance test assembly 42 facilitates effective fixation of the product 100.
[0030] Specifically: as Figure 2 and Figure 3 shown, the voltage resistance test mechanism 4 further comprises a leakage current test assembly 43, the leakage current test assembly 43 comprises a voltage resistance tester 431 arranged on the second frame 41, a bracket 432 arranged on the fixed plate 424, a fifth air cylinder 433 arranged on the bracket 432, a connecting plate 434 arranged on the output end of the fifth air cylinder 433, a first probe 435 arranged on the connecting plate 434 and electrically connected to the negative pole of the voltage resistance tester 431, a third carbon brush 436 arranged on the frame 1, a second probe electrically connected to one of the third carbon brush 436, and the second probe is electrically connected to the positive pole of the voltage resistance tester 431. The voltage resistance tester 431 is a CJ2673 voltage resistance tester 431, which can test the voltage resistance and leakage current value at the same time.
[0031] In actual use, the carbon brush 436 supplies power to the conductive fixture 24, and then the No. 5 cylinder 433 drives the connecting plate 434 to move downward, so that the No. 1 probe 435 contacts the product 100 shell, and whether the current value is monitored by the voltage withstand tester 431 is observed. If the monitored current value is within the normal range, the product 100 has normal leakage current. If the monitored current value exceeds the normal range, it indicates that the product 100 has unqualified leakage current.
[0032] In the above design, the product 100 can be quickly detected for leakage current.
[0033] Specifically, as shown in Figure 1 , Figure 2 and Figure 5 , the rack 1 is further provided with a marking mechanism, the marking mechanism is provided on the cross beam of the rack 1 and two marking assemblies 6 provided on the cross beam, the marking assembly 6 comprises a No. 3 cylinder 61 vertically provided on the cross beam and having an output end downward, a sheet metal 62 fixedly provided on the output end of the No. 3 cylinder 61, and a signal pen 63 provided on the sheet metal 62, the signal pen 63 is obliquely arranged.
[0034] In actual use, when the product 100 power test shows that it is not good, the product 100 passes under the marking mechanism, the No. 3 cylinder 61 drives the sheet metal 62 to move downward, and drives the signal pen 63 to move downward, so that the signal pen 63 marks on the product 100.
[0035] In the above design, the structure design and specific implementation of the marking mechanism can effectively mark the defective product 100.
[0036] Specifically, as shown in Figure 1 and Figure 2 , the rack 1 is further provided with a metal grille 7, the metal grille 7 comprises side walls respectively arranged on both sides of the rack 1 and a top wall connected to the upper ends of the two side walls, and the conveying line 2 is located below the top wall.
[0037] In the above design, the design of the metal grille 7 can effectively isolate the product 100 in the conveying line 2 from the outside, and ensure the smooth progress of the product 100 test process.
[0038] It should be understood that the above only describes specific embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A PTC heater testing device comprising a rack (1) and a conveying line (2) provided on the rack (1), characterized in that: The power test mechanism (3) and the voltage resistance test mechanism (4) are arranged on the conveying line (2), the conveying line (2) comprises a driving shaft (21) arranged at one end of the rack (1), a driven shaft (22) arranged at the other end of the rack (1), a driving shaft (21) arranged at the other end of the rack (1), a driving sprocket arranged on the driving shaft (21), a driven sprocket arranged on the driven shaft (22), a chain (23) in driving connection with the driving sprocket and the driven sprocket, a plurality of conductive fixtures (24) arranged on the chain (23), and a motor arranged on the rack (1) for driving the driving shaft (21) to rotate, the chain (23) is provided with two rows of conductive fixtures (24), the power test mechanism (3) comprises a first frame (31) and two power test assemblies (32) arranged on the first frame (31), and the voltage resistance test mechanism (4) comprises a second frame (41) and two rows of voltage resistance test assemblies (42) arranged on the second frame (41).
2. The PTC heat generator testing device according to claim 1, characterized by: The power test assembly (32) comprises a first carbon brush fixedly arranged on the rack (1) and used for energizing the conductive fixture (24), and a power tester (322) arranged on the rack (1) and in electrical connection with the first carbon brush.
3. The PTC heat generator testing device according to claim 1, characterized by: The voltage resistance test assembly (42) comprises an ammeter (421) arranged on the second frame (41), a plurality of second carbon brushes A (422) arranged on the rack (1) in the conveying direction of the conveying line (2) and used for energizing the conductive fixture (24), a second carbon brush B (423) arranged on the rack (1) and in electrical connection with the ammeter (421), a fixed plate (424) arranged on the second frame (41), a lifting frame (425) in sliding lifting connection with the fixed plate (424), a second air cylinder A (426) fixedly arranged on the fixed plate (424) and used for driving the lifting frame (425) to lift, a first clamping member (427) fixedly arranged below the lifting frame (425) and used for clamping the product body (101), and a second clamping member (428) used for clamping the product line head (102).
4. The PTC heat generator testing device according to claim 1, characterized by: The voltage resistance test mechanism (4) further comprises a leakage current test assembly (43), the leakage current test assembly (43) comprises a voltage resistance tester (431) arranged on the second frame (41), a support (432) arranged on the fixed plate (424), a fifth air cylinder (433) arranged on the support (432), a connecting plate (434) arranged at the output end of the fifth air cylinder (433), a first probe (435) arranged on the connecting plate (434) and in electrical connection with the negative electrode of the voltage resistance tester (431), a third carbon brush (436) arranged on the rack (1), a second probe in electrical connection with one of the third carbon brush (436), and the second probe is in electrical connection with the positive electrode of the voltage resistance tester (431).
5. The PTC heat generator testing device according to claim 1, characterized by: The rack (1) is further provided with a marking mechanism, which is arranged on the crossbeam of the rack (1) and two marking assemblies (6) arranged on the crossbeam, the marking assembly (6) comprises a No. 3 air cylinder (61) arranged vertically on the crossbeam and having an output end downward, a sheet metal (62) fixedly arranged on the output end of the No. 3 air cylinder (61), and a signal pen (63) arranged on the sheet metal (62), wherein the signal pen (63) is arranged obliquely.
6. The PTC heat generator testing device according to claim 1, characterized by: The rack (1) is further provided with a metal grille (7), which comprises side walls arranged on both sides of the rack (1) respectively and a top wall connected to the upper ends of the two side walls, and the conveying line (2) is located below the top wall.