Crimping test device for electric connector processing

Abstract

The utility model relates to a crimping test device for processing an electric connector, which comprises a test box, a test voltage source and an RLC (Radio Link Control) load, and is characterized in that a pulling test board, a heating pipe, an atomizing nozzle and a temperature and humidity sensor are arranged in the test box; the pulling test bench is provided with at least one group of test assembly, each group of test assembly comprises a clamp and a wire twisting motor which are fixed on two sides of the pulling test bench, the clamp and the wire twisting motor are respectively fixed with a first test wire and a second test wire, and an output shaft of the wire twisting motor is provided with a torque sensor. And the outer side ends of the first test line and the second test line are respectively connected with the test voltage source and the RLC load. The device can be used for testing the pulling resistance of the electric connector under a pressure condition and the durability of the electric connector under various environmental conditions after the electric connector is crimped and connected with a wire, and meanwhile, the testing device has a perfect protection function, and is particularly suitable for the complete test of the complex practical performance of the high-quality electric connector.

Description

Technical Field

[0001] This utility model relates to the field of electrical performance testing technology, specifically to a crimping test device for electrical connector processing. Background Technology

[0002] An electrical connector is a device used to connect two wire ends together, ensuring electrical continuity. The crimping effect of an electrical connector is generally judged by placing the crimped connector into a powered circuit and testing whether the voltage and current are normal. However, in practical applications, high-quality crimping should be able to withstand certain external impacts and various environmental conditions. Therefore, testing the tensile strength and durability of crimped electrical connectors under various environmental conditions is of practical significance for improving the quality and usability of electrical connector products. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a crimping test device for electrical connector processing, which can test the tensile strength and durability of electrical connectors under pressure conditions after crimping the wires, as well as the durability under various environmental conditions. At the same time, the test device itself has complete protection functions, and is especially suitable for the complete testing of the complex practical performance of high-quality electrical connectors.

[0004] This crimping test device for electrical connector processing includes a test chamber for preventing crimping of the connector under test, a test voltage source and an RLC load forming a detection circuit with the test chamber. The test chamber has a door on the front, a pull test platform at the bottom inside the test chamber, heating tubes and atomizing nozzles installed on the inner wall of the test chamber, and temperature and humidity sensors installed on the side wall of the test chamber. The pull test platform has at least one set of test components. Each set of test components includes clamps fixed on both sides of the pull test platform and a stranded wire motor. A first test wire is clamped and fixed on the clamps, and a second test wire is wound and fixed on the output shaft of the stranded wire motor. A torque sensor is installed on the output shaft of the stranded wire motor. The outer ends of the first and second test wires are respectively connected to the test voltage source and the RLC load, and the inner ends of the first and second test wires are used for electrical connection by the connector under test.

[0005] Furthermore, the test chamber is equipped with a water supply tank, a temperature controller, and a central controller; the input terminal of the central controller is connected to the temperature and humidity sensor and the torque sensor, and the output terminal of the central controller is connected to the water pump of the water supply tank and the control terminal of the temperature controller, respectively.

[0006] Furthermore, an insulating baffle is installed on the pull test platform.

[0007] Furthermore, it also includes a protection component, which is connected in series with a sampling module and an isolating switch on the detection circuit. The sampling module and the isolating switch are respectively connected to the input and output terminals of the central controller.

[0008] Furthermore, the central controller uses an STM32F405R processing chip as its core central control circuit; the sampling module uses a DAQM4206 voltage / current analog acquisition board; and the isolating switch uses an ACB13202 relay switch.

[0009] This utility model discloses a crimping test device for electrical connector processing, which can test the tensile strength and durability of electrical connectors under pressure conditions after crimping the wires, as well as the durability under various environmental conditions. At the same time, the test device itself has complete protection functions, and is especially suitable for the complete testing of the complex practical performance of high-quality electrical connectors. Attached Figure Description

[0010] The following description, in conjunction with the accompanying drawings, further illustrates the crimping testing device for electrical connector processing according to this utility model:

[0011] Figure 1 This is a wireframe diagram illustrating the logic structure and connection principle of the crimping test device for electrical connector processing.

[0012] Figure 2 This is a schematic diagram of the planar structure of the test box of the crimping test device for electrical connector processing.

[0013] In the picture:

[0014] 1-Test box, 2-Test voltage source, 3-RLC load, 4-Protection components;

[0015] 11-Box door, 12-Pull test platform, 13-Heating tube, 14-Atomizing nozzle, 15-Temperature and humidity sensor, 16-Water supply tank, 17-Thermostat, 18-Central controller, 19-Insulating baffle; 41-Sampling module, 42-Isolating switch;

[0016] 121-Clamp, 122-Stranded wire motor, 123-First test line, 124-Second test line, 125-Torque sensor. Detailed Implementation

[0017] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0018] In the description of this utility model, it should be understood that the terms "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] The present invention will be further described below with specific embodiments, but the scope of protection of the present invention is not limited to the following embodiments.

[0020] Implementation method 1: such as Figure 1 , 2 As shown, the crimping test device for electrical connector processing includes a test box 1 for preventing the electrical connector under test from being crimped, a test voltage source 2 and an RLC load 3 forming a detection circuit with the test box 1. The test box 1 has a door 11 on the front, a pull test platform 12 at the bottom inside the test box 1, a heating tube 13 and an atomizing nozzle 14 installed on the inner wall of the test box 1, and a temperature and humidity sensor 15 installed on the side wall of the test box 1. The pull test platform 12 is provided with at least one set of test components. Each set of test components includes a clamp 121 fixed on both sides of the pull test platform 12 and a stranded wire motor 122. A first test wire 123 is clamped and fixed on the clamp 121, and a second test wire 124 is wound and fixed on the output shaft of the stranded wire motor 122. A torque sensor 125 is provided on the output shaft of the stranded wire motor 122. The outer ends of the first and second test wires are respectively connected to the test voltage source 2 and the RLC load 3, and the inner ends of the first and second test wires are used for electrical connection by the electrical connector under test.

[0021] Implementation Method 2: The test chamber 1 of this crimping test device for electrical connector processing is equipped with a water supply tank 16, a temperature controller 17, and a central controller 18. The input terminal of the central controller 18 is connected to the temperature and humidity sensor 15 and the torque sensor 125, and the output terminal of the central controller 18 is connected to the water pump of the water supply tank 16 and the control terminal of the temperature controller 17, respectively. The central controller sets the temperature and humidity threshold of the chamber environment and controls the temperature controller to execute the heating tube heating and the water pump body of the water supply tank to supply water to the atomizing nozzle. During the experiment, it starts and stops in accordance with the feedback signal of the temperature and humidity sensor to provide the required ambient temperature and humidity for the test before the test. The remaining structures and components are as described in Implementation Method 1 and will not be described again.

[0022] Implementation Method 3: The pull test bench 12 of this crimping test device for electrical connector processing is equipped with an insulating baffle 19. This baffle separates the inner ends of the first and second test leads during non-testing periods, ensuring they are in an open-circuit state. The remaining structures and components are as described in Implementation Method 1 and will not be repeated.

[0023] Implementation Method 4: This crimping test device for electrical connector processing also includes a protection component 4. The protection component 4 is connected in series with a sampling module 41 and an isolating switch 42 in the detection circuit. The sampling module 41 and the isolating switch 42 are respectively connected to the input and output terminals of the central controller. When overcurrent or overvoltage occurs in the detection circuit of the sampling module, or when the temperature sensor detects an overtemperature signal from the RLC load, the central controller outputs a signal to the isolating switch, which then disconnects the test circuit, protecting the voltage source, load, and other equipment. The remaining structures and components are as described in Implementation Method 1 and will not be described again.

[0024] Implementation Method 5: The central controller of this crimping test device for electrical connector processing adopts an STM32F405R processing chip as its core; the sampling module 41 adopts a DAQM4206 voltage / current analog signal acquisition board, and the isolating switch 42 adopts an ACB13202 relay switch. In addition to the STM32F405R processing chip, the central controller also includes an A / D conversion module for converting analog input signals such as torque, temperature, humidity, voltage, and current into digital signals and displaying them on a display device; a wireless data transmission module for real-time data upload to a host computer or handheld terminal; and a storage module. The remaining structures and components are as described in Implementation Method 1 and will not be repeated.

[0025] In use: Use the connectors under test to crimp the inner ends of the first and second test leads in each test assembly on the pull test bench. After closing the test chamber door, heat and humidify to the experimental temperature and humidity. Start the test voltage source to supply power. After the power supply is stable, start the stranded wire motor to tension and pull the first and second test leads until the sampling module collects the voltage loss of the line. Measure whether the maximum tensile force that the connector crimping can withstand meets the tensile crimping standard. For test groups where the line does not lose power after meeting the standard tensile force, the stranded wire motor can be turned off, and the temperature and humidity inside the chamber can be increased to conduct durability performance tests under harsh conditions.

[0026] This crimping test device for electrical connectors can test the tensile strength and durability of crimped electrical connectors under pressure conditions, as well as their durability under various environmental conditions. The device itself has comprehensive protection functions and is especially suitable for the complete testing of the complex and practical performance of high-quality electrical connectors.

[0027] The above description illustrates the main features, basic principles, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments or examples described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments or examples should be considered exemplary and not restrictive. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A crimping test apparatus for electrical connector processing, characterized in that: it includes a device for... The test box (1) of the electrical connector under test, the test voltage source (2) and the RLC load (3) that form a detection circuit with the test box (1), wherein, The test box (1) has a door (11) on the front, a pull test platform (12) is provided at the bottom inside the test box (1), a heating tube (13) and an atomizing nozzle (14) are installed on the inner wall of the test box (1), and a temperature and humidity sensor (15) is installed on the side wall of the test box (1). The pull test platform (12) is provided with at least one set of test components. Each set of test components includes a clamp (121) fixed on both sides of the pull test platform (12) and a stranded motor (122). The clamp (121) holds and fixes a first test line (123). A second test line (124) is wound and fixed on the output shaft of the stranded motor (122). A torque sensor (125) is provided on the output shaft of the stranded motor (122). The outer ends of the first and second test lines are respectively connected to the test voltage source (2) and the RLC load (3). The inner ends of the first and second test lines are used to be electrically connected to the electrical connector under test.

2. The crimping test apparatus for electrical connector processing according to claim 1, characterized in that: The test box (1) is equipped with a water supply tank (16), a temperature controller (17), and a central controller (18); the input end of the central controller (18) is connected to the temperature and humidity sensor (15) and the torque sensor (125), and the output end of the central controller (18) is connected to the water pump of the water supply tank (16) and the control end of the temperature controller (17), respectively.

3. The crimping test apparatus for electrical connector processing according to claim 2, characterized in that: An insulating baffle (19) is mounted on the pull test platform (12).

4. The crimping test apparatus for electrical connector processing according to claim 3, characterized in that: It also includes a protection component (4), which is connected in series with a sampling module (41) and an isolating switch (42) on the detection circuit. The sampling module (41) and the isolating switch (42) are respectively connected to the input and output terminals of the central controller.

5. The crimping test apparatus for electrical connector processing according to claim 4, characterized in that: The central controller (18) uses an STM32F405R processing chip as the core of the central control circuit; the sampling module (41) uses a DAQM4206 voltage / current analog acquisition board; and the isolating switch (42) uses an ACB13202 relay switch.

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