CN210604863U - Alternating current voltage withstand test machine for PTC heater - Google Patents
Alternating current voltage withstand test machine for PTC heater Download PDFInfo
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- CN210604863U CN210604863U CN201921403596.4U CN201921403596U CN210604863U CN 210604863 U CN210604863 U CN 210604863U CN 201921403596 U CN201921403596 U CN 201921403596U CN 210604863 U CN210604863 U CN 210604863U
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Abstract
本实用新型提供了一种PTC加热器交流耐压测试机，包括重载连接器、错峰依次检测PTC加热器上每一加热片的控制器以及电连接所述控制器的电源，所述重载连接器包括可与PTC加热器上每一加热片的信号输入接头一一对应配合的若干信号输出端以及可与PTC加热器上每一加热片的信号输出接头一一对应配合的若干信号接收端，各所述信号输出端均电连接所述控制器的输出端，各所述信号接收端均电连接所述控制器的输入端。本实用新型提高了PTC加热器的检测效率，使得PTC加热器上的每一加热片都得到有效检测，由PLC错峰依次接通每一加热片，避免了冲击电流叠加损害设备，加大电源负荷。
The utility model provides a PTC heater AC withstand voltage tester, which comprises a heavy-duty connector, a controller for detecting each heating piece on the PTC heater in turn by peak shift, and a power supply electrically connected to the controller. The carrier connector includes a number of signal output terminals that can be matched with the signal input connectors of each heating piece on the PTC heater in a one-to-one correspondence, and a number of signal receivers that can be matched with the signal output connectors of each heating piece on the PTC heater in a one-to-one correspondence. Each of the signal output terminals is electrically connected to the output terminal of the controller, and each of the signal receiving terminals is electrically connected to the input terminal of the controller. The utility model improves the detection efficiency of the PTC heater, so that each heating piece on the PTC heater can be effectively detected, and each heating piece is switched on in turn by the PLC staggered peak, so as to avoid the superposition of the impulse current and damage the equipment, and increase the power supply. load.
Description
Technical Field
The utility model relates to a PTC heater withstand voltage test field especially relates to a PTC heater exchanges withstand voltage test machine.
Background
The withstand voltage tester is a device for measuring the withstand voltage strength of electronic products, and is a 100% production line test for verifying the quality and electrical safety characteristics of the products (such as the standards required by international safety agencies such as JSI, CSA, BSI, UL, IEC, TUV, and the like). In the CSA, UL and IEC standards, almost all kinds of electrical safety standards require a withstand voltage test on products. The withstand voltage test is an important component of the safety standard of the electric appliance.
The withstand voltage test (dielectricvoltageshastendast) is a test for subjecting an input power line of an electric product to a voltage higher than a rated value of the input power line, and determining whether an insulating material and a creepage distance of equipment meet requirements by specifying the voltage value of different types of products at a specified time. This test also provides that "arc breakdown (or breakdown) is not allowed to occur" during the application of the high voltage.
Traditional alternating current withstand voltage tester does not have complete sets, only indicates high voltage short-time test insulation resistance, can not detect the dynamic behavior of PTC heater in high pressure long-time work, and is inconvenient, is unfavorable for workshop production.
Due to the volt-ampere characteristic of the PTC heater, the instantaneous current of the PTC heater is 5-7 times of the rated current, when the PTC heater is used for batch production, the traditional testing method cannot comprehensively detect and analyze the safety and reliability of each heating piece, and the consistency of the electrical performance parameters of the heating pieces cannot be read, written and traced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a PTC heater exchanges withstand voltage test machine to improve PTC heater's detection efficiency, make each heating plate on the PTC heater all obtain effective detection.
The utility model discloses a realize like this:
the utility model provides a PTC heater alternating-current voltage withstand test machine, detect controller and the electricity of each heating plate on the PTC heater in proper order including heavy load connector, wrong peak and be connected the power of controller, heavy load connector including can with the PTC heater on a plurality of signal output of the signal input connector one-to-one complex of each heating plate and can with the PTC heater on a plurality of signal receiving terminals of the signal output connector one-to-one complex of each heating plate, each the equal electricity of signal output is connected the output of controller, each the equal electricity of signal receiving terminal is connected the input of controller.
Preferably, the controller comprises an upper computer and a PLC, the upper computer is electrically connected with the PLC through a serial port, the signal output ends are electrically connected with the output end of the PLC, and the signal receiving ends are electrically connected with the input end of the PLC.
Preferably, the alternating-current voltage withstand test machine for the PTC heater further comprises a plurality of transmitters which are in one-to-one correspondence with the signal receiving ends, and each signal receiving end is electrically connected with the PLC through the corresponding transmitter.
Preferably, the alternating-current voltage withstand testing machine for the PTC heater further comprises a cabinet body, a control panel is arranged at the front end of the cabinet body, an upper computer and a PLC are arranged in the cabinet body, a display screen of the upper computer is embedded and installed on the control panel, a control button assembly is further arranged on the control panel, a plurality of clamping tools which correspond to the PTC heater one by one are arranged on the side wall of the cabinet body, heavy-load connectors are arranged on the clamping tools respectively, the clamping tools correspond to the heavy-load connectors one by one, the control button assembly comprises automatic change-over switches for detecting different heavy-load connectors, and the automatic change-over switches are electrically connected with the PLC.
Preferably, the display screen of the upper computer is a touch screen.
Preferably, the control panel is provided with a storage plate protruding out of the cabinet body below, the control panel tilts backwards, and the included angle between the control panel and the storage plate is larger than 90 degrees and not larger than 180 degrees.
Preferably, a cabinet door is arranged on the cabinet and is positioned below the object placing plate.
Preferably, the control button assembly further comprises an emergency stop button, a stop button and a start button, all electrically connected to the PLC.
Preferably, still be equipped with bee calling organ and three-colour signal status indicator lamp on the cabinet body, bee calling organ and three-colour signal status indicator lamp all are connected with the PLC electricity.
Preferably, the cabinet body is further provided with a safety grating, and the safety grating is electrically connected with the PLC.
The utility model discloses following beneficial effect has:
1. the utility model provides high PTC heater's detection efficiency for each heating plate on the PTC heater all obtains effective detection, puts through each heating plate in proper order by the wrong peak of PLC, has avoided impulse current stack harm equipment, increases power load.
2. The utility model provides a PTC heater exchanges high-voltage insulation test machine is the batch production test that is used as the PTC heater, also can be used as the electrical property analysis of PTC heater, adopt the changer to collect load loop's data change, carry out whole closed loop control, open a way, overflow, test data such as short circuit, no-load are sampled by PLC analog quantity module synchronization, realize testing voltage, the accurate control of electric current through the host computer, avoided leaking the survey, overflow the emergence of the condition such as, also can analyze the defect that the product exists simultaneously.
3. The utility model provides a PTC heater alternating current withstand voltage test machine staggers the superposition of current peak values to reduce the influence on the line bearing capacity; whether the current of each heating sheet of the PTC heater under high voltage is normal can be judged; whether the impulse current of each heating plate of the PTC heater reaches the standard or not can be judged; two sets of centre gripping frock sharing same group test acquisition module, through preceding stage system allocation, the test data of gathering work that group, the PTC heater of installation renewal after the test is accomplished, two sets of centre gripping frock can work at different operating condition mutual noninterferences safely.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of an ac voltage withstand test machine for a PTC heater according to an embodiment of the present invention;
fig. 2 is a schematic current diagram of each heating fin from the instant of connection to the instant after stabilization according to the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-2, the embodiment of the utility model provides a PTC heater exchanges withstand voltage test machine, include heavy load connector, alternate peak and detect the controller and the electricity connection of each heating plate on the PTC heater in proper order the power of controller, heavy load connector including can with on the PTC heater signal input connector one-to-one complex a plurality of signal output part of each heating plate and can with the PTC heater on a plurality of signal output connector one-to-one complex signal receiving terminal of each heating plate, each the equal electricity of signal output part is connected the output of controller, each the equal electricity of signal receiving terminal is connected the input of controller. In this embodiment, the controller includes host computer 1 and PLC, and host computer 1 is connected with the PLC electricity through the serial ports, each signal output part all connects PLC's output, each signal receiving terminal all connects PLC's input. The utility model provides a PTC heater alternating-current voltage withstand test machine can accomplish each heating plate on the automated inspection PTC heater, put through each heating plate in proper order by the wrong peak of PLC, impulse current stack harm equipment has been avoided, increase power load, as figure 2, 1# curve indicates that first heating plate put through is to the current variation after stabilizing in the twinkling of an eye, 2# curve indicates that second heating plate put through is to the current variation after stabilizing in the twinkling of an eye, the on-time of second heating plate will be after first heating plate produces impulse current, the on-time of other heating plates is analogized in proper order also.
Preferably, the alternating-current voltage withstand testing machine for the PTC heater further comprises a cabinet body 2, a control panel 3 is arranged at the front end of the cabinet body 2, an upper computer 1 and a PLC are arranged in the cabinet body 2, a display screen of the upper computer 1 is embedded and installed on the control panel 3, a control button assembly is further arranged on the control panel 3, a plurality of clamping tools 4 in one-to-one correspondence with the PTC heater are arranged on the side wall of the cabinet body 2, heavy-load connectors are arranged on the clamping tools 4, the clamping tools 4 are in one-to-one correspondence with the heavy-load connectors, the control button assembly comprises automatic change-over switches 5 for detecting different heavy-load connectors, and the automatic change-over switches. In this embodiment, two centre gripping frocks 4 on the cabinet body 2 can realize multichannel detection in turn, and when a centre gripping frock got into test status, another centre gripping frock carried out PTC heater's installation, and two sets of tests in turn, seamless butt joint has improved work efficiency.
The utility model discloses in, be equipped with multiple centre gripping frock structure on the cabinet body 2, can change centre gripping frock structure according to the PTC heater structure of difference, detect different PTC heater.
The utility model discloses can realize batched PTC heater alternating current withstand voltage test, not only easy operation can realize automatic testing moreover, can satisfy the quick high-efficient production requirement of enterprise.
Preferably, the alternating-current voltage withstand test machine for the PTC heater further comprises a plurality of transmitters which are in one-to-one correspondence with the signal receiving ends, each signal receiving end is electrically connected with the PLC through the corresponding transmitter, voltage and current changes of each heating plate can be monitored in real time, the transmitters can adopt voltage transmitters or current transmitters, the PLC realizes whole-process closed-loop monitoring on each heating plate, the PLC provides rated voltage for each heating plate for a period of time, then provides voltage higher than the rated voltage for a period of time, and in the detection process, if the PLC finds out which heating plate loop has open circuit, overcurrent, short circuit, no-load and other conditions, corresponding processing is immediately carried out, and the heating plate loop is reported to an upper computer, and the upper computer records the conditions.
The upper computer realizes accurate control of test voltage and current, avoids the occurrence of conditions such as missing test, overcurrent and the like, and can analyze the defects of the product. The upper computer displays the detection result in real time, and the detection is automatically completed without manual intervention, thereby avoiding human errors.
Preferably, the display screen of the upper computer 1 is a touch screen.
Preferably, the control panel 3 is provided with a shelf 6 protruding out of the cabinet 2, the control panel 3 is inclined backwards, and the included angle between the control panel 3 and the shelf 6 is larger than 90 degrees and not larger than 180 degrees.
Preferably, the cabinet top 2 is provided with a cabinet door 7, and the cabinet door 7 is positioned below the object placing plate 6.
Preferably, the control button assembly further comprises an emergency stop button 8, a stop button 9 and a start button 10 of the testing machine, and the emergency stop button 8, the stop button 9 and the start button 10 are all electrically connected with the PLC. The control panel 3 is also provided with a start button 11 of an upper computer.
Preferably, the cabinet body 2 is further provided with a buzzer 12 and a three-color signal status indicator lamp 13, the buzzer 12 and the three-color signal status indicator lamp 13 are electrically connected with the PLC, and when the conditions of open circuit, overcurrent, short circuit, no-load and the like occur, the alarm is timely provided.
Preferably, the cabinet body 2 is further provided with a safety grating, the safety grating is electrically connected with the PLC, and once a worker approaches the PTC heater to be detected or is detecting to a certain range, the power supply can be cut off in real time, so that the personal safety of the worker is guaranteed.
The utility model provides a PTC heater alternating current withstand voltage test machine is the batch production test that is used as the PTC heater, also can be used as the electrical property analysis of PTC heater, adopts the changer to collect the data change in load circuit, carries out whole closed loop control, opens a way, overflows, short circuit, test data such as unloaded are sampled by PLC analog quantity module in step, realize testing voltage through the host computer, the accurate control of electric current, avoided leaking the survey, the emergence of the condition such as overflowing, the defect that simultaneously also can the analysis product exists, the utility model provides a high PTC heater's detection efficiency for each heating plate on the PTC heater all obtains effective detection, puts through each heating plate by PLC wrong peak in proper order, has avoided impulse current stack harm equipment, increases power load.
The utility model provides a PTC heater exchanges withstand voltage test machine's working process: 1. firstly, selecting two groups of proper clamping tools to be well connected with the cabinet body, turning on a system power supply after checking that the clamping tools are correct, and turning on an upper computer; the equipment self-checking clamping tool is connected with the matching condition, and the main control knob is switched to automatic control;
2. when the PTC heater is at the installation position, the PTC heater is pushed to the working position by a clamping cylinder outside the cabinet body and is well contacted with an electrode tip of a clamping tool on the cabinet body, the clamping tool with the installed PTC heater is pressed down by a tool starting button, a system checks that no shielding object exists in the protection grating, and a tool indicating lamp displays the operation state;
3. the PLC controls the power supply to be connected with a main power supply of the clamping tool, then the first heating plate of the PTC heater is connected, the second heating plate … … is sequentially connected after the current of the first heating plate is stable (the rated peak impact current is avoided), and when the PTC heater is tested, the upper computer records test data in real time and makes a judgment according to the test data.
In the utility model, when one PTC heater is tested, the other PTC heater can be arranged on the second clamping tool, and the corresponding start button of the tool is pressed after the installation is finished; after the first PTC heater is tested, whether the first PTC heater is qualified or not is automatically judged according to the test result, the test result is displayed on the tool indicating lamp, the state of the second PTC heater is automatically checked, the second PTC heater is automatically started to test after the second PTC heater is detected to be ready, and an operator can detach the first PTC heater according to the tool indicating result and install a new PTC heater on the clamping tool.
The utility model provides a PTC heater exchanges withstand voltage test machine has following advantage: 1. the influence on the line bearing capacity is reduced by staggering the superposition of current peak values; 2. whether the current of each heating sheet of the PTC heater under high voltage is normal can be judged; 3. whether the impulse current of each heating plate of the PTC heater reaches the standard or not can be judged; 4. two sets of centre gripping frock sharing same group test acquisition module, through preceding stage system allocation, the test data of gathering work that group, the PTC heater of renewal after the test is accomplished, two sets of centre gripping frock can work at different operating condition mutual noninterference safely.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921403596.4U CN210604863U (en) | 2019-08-27 | 2019-08-27 | Alternating current voltage withstand test machine for PTC heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921403596.4U CN210604863U (en) | 2019-08-27 | 2019-08-27 | Alternating current voltage withstand test machine for PTC heater |
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| Publication Number | Publication Date |
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| CN210604863U true CN210604863U (en) | 2020-05-22 |
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| CN201921403596.4U Active CN210604863U (en) | 2019-08-27 | 2019-08-27 | Alternating current voltage withstand test machine for PTC heater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111722613A (en) * | 2020-06-08 | 2020-09-29 | 江苏协和电子股份有限公司 | Automation equipment for burning and detecting PTC (positive temperature coefficient) controller of new energy automobile |
| CN116298598A (en) * | 2023-01-05 | 2023-06-23 | 上海马勒热系统有限公司 | High-voltage PTC electric heater electronic function test method |
-
2019
- 2019-08-27 CN CN201921403596.4U patent/CN210604863U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111722613A (en) * | 2020-06-08 | 2020-09-29 | 江苏协和电子股份有限公司 | Automation equipment for burning and detecting PTC (positive temperature coefficient) controller of new energy automobile |
| CN116298598A (en) * | 2023-01-05 | 2023-06-23 | 上海马勒热系统有限公司 | High-voltage PTC electric heater electronic function test method |
| CN116298598B (en) * | 2023-01-05 | 2026-03-27 | 上海马勒热系统有限公司 | Electronic Function Test Method for High Voltage PTC Electric Heaters |
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