NTC thermistor batch sorting test circuit

Abstract

The utility model discloses an NTC thermistor batch sorting test circuit, and belongs to the technical field of thermistor sorting. Comprising a switching power supply, an input end of the switching power supply is connected with an external power supply, a power supply output end of the switching power supply is connected with a power supply input end of a touch screen, an IE interface of the touch screen is connected with a PE end of a digital quantity chipset, and a power supply output end of the switching power supply is connected with a power supply input end of the digital quantity chipset. The output control end of the digital quantity chip set is connected with the input end of the relay set, the output end of the relay set is connected with the input end of the test terminal, the output end of the test terminal is connected with the test port, and the test port is used for being connected with the NTC thermistor to be detected. According to the utility model, not only are the production efficiency and the product quality improved, but also the labor cost and the error rate are reduced, and an operator can easily monitor the whole test process and take measures in time to deal with any substandard conditions.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermistor sorting, and in particular relates to a NTC thermistor batch sorting test circuit. Background Art

[0002] NTC thermistors are sensor resistors whose resistance decreases as temperature increases. Their characteristics make them widely used in various electronic components. Existing NTC thermistors are usually tested using a multimeter, which can quickly complete the test of NTC thermistors. However, when a large number of NTC thermistors need to be tested, a lot of manpower and a lot of time are required to complete the test of the NTC thermistors to be tested. Utility Model Content

[0003] The purpose of the utility model is to provide a batch sorting test circuit for NTC thermistors, which solves the above-mentioned problems existing in the prior art.

[0004] Technical solution: A NTC thermistor batch sorting test circuit includes a switching power supply, wherein the input end of the switching power supply is connected to an external power supply, the power supply output end of the switching power supply is connected to the power supply input end of a touch screen, the IE interface of the touch screen is connected to the PE end of a digital chipset, the power supply output end of the switching power supply is connected to the power supply input end of the digital chipset, the output control end of the digital chipset is connected to the input end of a relay group, the output end of the relay group is connected to the input end of a test terminal, the output end of the test terminal is connected to a test port, and the test port is used to connect the NTC thermistor to be tested.

[0005] Preferably, the digital quantity chip group includes a digital quantity chip U1, a digital quantity chip U2 and a digital quantity chip U3, the relay group includes a relay integrated box A, a relay integrated box B and a relay integrated box C, the output control end of the digital quantity chip U1 is connected to the input end of the relay integrated box A and the relay integrated box B, the output control end of the digital quantity chip U2 is connected to the input end of the relay integrated box A and the relay integrated box B, the output control end of the digital quantity chip U3 is connected to the input end of the relay integrated box C, and the output ends of the relay integrated box A, the relay integrated box B and the relay integrated box C are connected to the input end of the test terminal.

[0006] Preferably, the digital quantity chip U1 adopts a PLC digital quantity module of the model 6ES7288-1ST60-0AA1, and the digital quantity chip U2 and the digital quantity chip U3 both adopt a PLC digital quantity module of the model 6ES7288-2QT16-0AA0.

[0007] Preferably, the relay integrated box A and the relay integrated box B respectively adopt the relay integrated box of Y448.

[0008] Preferably, it also includes a downward pressing cylinder, a flipping cylinder and a table trigger, one end of the downward pressing cylinder is connected to the test terminal through a downward pressing solenoid valve, and the other end of the downward pressing cylinder is simultaneously connected to the power supply output end of the switching power supply, the electrical integrated box A and the power supply input end of the relay integrated box B, one end of the flipping cylinder is connected to the test terminal through a flipping solenoid valve, and the other end of the flipping cylinder is simultaneously connected to the power supply output end of the switching power supply, the electrical integrated box A and the power supply input end of the relay integrated box B.

[0009] Preferably, the test port adopts the HG2515 model test port.

[0010] Preferably, the switching power supply adopts a switching power supply of model L175-20B2R2S.

[0011] Beneficial effect: The utility model relates to a batch sorting test circuit for NTC thermistors. The NTC thermistors to be tested are connected to the test port, and the NTC thermistors are tested by using a downward pressure cylinder, a flip cylinder, a table trigger, a relay group and a digital chip group. The NTC thermistors that do not meet the standards can be sorted out, and the corresponding NTC thermistors that do not meet the standards can be displayed through the touch screen. This not only improves production efficiency and product quality, but also reduces labor costs and error rates. The operator can easily monitor the entire test process and take timely measures to deal with any non-standard situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the switching power supply circuit diagram of the utility model;

[0013] Figure 2 This is the circuit diagram of the digital quantity chip U1 of the present utility model;

[0014] Figure 3 This is a partial circuit diagram of the digital chipset of the present utility model;

[0015] Figure 4 This is a partial circuit diagram of the relay group of the present utility model;

[0016] Figure 5 This is the circuit diagram of the relay integrated box C of the present utility model;

[0017] Figure 6 This is the test terminal circuit diagram of the utility model. DETAILED DESCRIPTION

[0018] like Figures 1 to 6As shown, the utility model provides a technical solution: a NTC thermistor batch sorting test circuit, including a switching power supply, a touch screen, a digital chip group, a relay group, a test terminal, a test port, a downward pressure cylinder, a flip cylinder and a table trigger, wherein the input end of the switching power supply is connected to the external power supply, the power supply output end of the switching power supply is connected to the power supply input end of the touch screen, the digital chip group includes a digital chip U1, a digital chip U2 and a digital chip U3, the IE interface of the touch screen is connected to the PE end of the digital chip U1, the digital chip U2 and the digital chip U3, the relay group includes a relay integrated box A, a relay integrated box B and a relay integrated box C, the output control end of the digital chip U1 is connected to the input end of the relay integrated box A and the relay integrated box B, the output control end of the digital chip U2 is connected to the input end of the relay integrated box A and the relay integrated box B, the output control end of the digital chip U3 is connected to the input end of the relay integrated box C, and the output ends of the relay integrated box A, the relay integrated box B and the relay integrated box C are connected to the The input end of the test terminal, the output ends of the relay integrated box A, the relay integrated box B and the relay integrated box C are connected to the input end of the test terminal, the output end of the test terminal is connected to the test port, and the test port is used to connect the NTC thermistor to be tested. One end of the pressing cylinder is connected to the test terminal through a pressing solenoid valve, and the other end of the pressing cylinder is simultaneously connected to the power supply output end of the switching power supply, the power supply input end of the electrical integrated box A and the relay integrated box B. One end of the flip cylinder is connected to the test terminal through a flip solenoid valve, and the other end of the flip cylinder is simultaneously connected to the power supply output end of the switching power supply, the power supply input end of the electrical integrated box A and the relay integrated box B. The NTC thermistor is tested by using the pressing cylinder, the flip cylinder, the table trigger, the relay group and the digital chip group to sort out the NTC thermistors that do not meet the standards, and the corresponding NTC thermistors that do not meet the standards are displayed through the touch screen, which not only improves production efficiency and product quality, but also reduces labor costs and error rates. The operator can easily monitor the entire test process and take timely measures to deal with any non-standard situations.

[0019] In a further embodiment, the digital chip U1 adopts the PLC digital module of model 6ES7288-1ST60-0AA1, the digital chip U2 and the digital chip U3 both adopt the PLC digital module of model 6ES7288-2QT16-0AA0, the relay integration box A and the relay integration box B respectively adopt the relay integration box of Y448, the test port adopts the test port of model HG2515, and the switching power supply adopts the switching power supply of model L175-20B2R2S.

[0020] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the scope of protection of the present invention.

Claims

1. A NTC thermistor batch sorting test circuit, characterized in that: The device comprises a switching power supply, wherein the input end of the switching power supply is connected to an external power supply, the power supply output end of the switching power supply is connected to the power supply input end of the touch screen, the IE interface of the touch screen is connected to the PE end of the digital chipset, the power supply output end of the switching power supply is connected to the power supply input end of the digital chipset, the output control end of the digital chipset is connected to the input end of the relay group, the output end of the relay group is connected to the input end of the test terminal, the output end of the test terminal is connected to the test port, and the test port is used to connect the NTC thermistor to be tested.

2. The NTC thermistor batch sorting test circuit according to claim 1, characterized in that: The digital quantity chip group includes a digital quantity chip U1, a digital quantity chip U2 and a digital quantity chip U3, and the relay group includes a relay integrated box A, a relay integrated box B and a relay integrated box C. The output control end of the digital quantity chip U1 is connected to the input end of the relay integrated box A and the relay integrated box B, the output control end of the digital quantity chip U2 is connected to the input end of the relay integrated box A and the relay integrated box B, the output control end of the digital quantity chip U3 is connected to the input end of the relay integrated box C, and the output ends of the relay integrated box A, the relay integrated box B and the relay integrated box C are connected to the input end of the test terminal.

3. The NTC thermistor batch sorting test circuit according to claim 2, characterized in that: The digital quantity chip U1 adopts the PLC digital quantity module of the model 6ES7288-1ST60-0AA1, and the digital quantity chip U2 and the digital quantity chip U3 both adopt the PLC digital quantity module of the model 6ES7288-2QT16-0AA0.

4. The NTC thermistor batch sorting test circuit according to claim 2, characterized in that: The relay integrated box A and the relay integrated box B respectively adopt the relay integrated box of Y448.

5. The NTC thermistor batch sorting test circuit according to claim 2, characterized in that: It also includes a downward pressure cylinder, a flip cylinder and a table trigger. One end of the downward pressure cylinder is connected to the test terminal through a downward pressure solenoid valve, and the other end of the downward pressure cylinder is simultaneously connected to the power supply output end of the switching power supply, the electrical integrated box A and the power supply input end of the relay integrated box B. One end of the flip cylinder is connected to the test terminal through a flip solenoid valve, and the other end of the flip cylinder is simultaneously connected to the power supply output end of the switching power supply, the electrical integrated box A and the power supply input end of the relay integrated box B.

6. The NTC thermistor batch sorting test circuit according to claim 1, characterized in that: The test port adopts the HG2515 model test port.

7. The NTC thermistor batch sorting test circuit according to claim 1, characterized in that: The switching power supply adopts the switching power supply of the L175-20B2R2S model.

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