Electric testing fixture for charging pile controller
By designing a charging pile controller testing fixture with a linear motor-driven pressure plate and elastic probe, the problems of complex structure and low efficiency of existing testing fixtures are solved, and a highly efficient and accurate testing process is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 郑州闪象新能源科技有限公司
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-03
AI Technical Summary
Existing charging pile controller testing fixtures are complex and bulky, rely on manual operation, and have poor contact, resulting in low testing efficiency.
Design a testing fixture that includes a pressure plate driven by a linear motor and an elastic probe. The linear motor presses the workpiece into contact with the probe, and the fixture is protected by bakelite/frosted acrylic material to achieve precise positioning and stable contact.
This improves the detection efficiency of the charging pile controller, ensures full contact between the probe and the pin, reduces the risk of poor contact, and enhances the automation and accuracy of the test.
Smart Images
Figure CN224456916U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of charging pile production technology, specifically relating to an electric testing fixture for a charging pile controller. Background Technology
[0002] The charging pile controller is a core component of the charging system, primarily responsible for functions such as charging process control, protocol communication, and safety protection. After the charging pile controller is manufactured, it needs to undergo testing, and only those that pass the testing can be distributed.
[0003] Technical issues: The original charging pile controller testing fixture is complex and bulky, mainly relies on manual operation, and the pins of the charging pile controller and the terminals of the testing equipment need to be repeatedly contacted (which can easily cause poor contact), resulting in low testing efficiency. Utility Model Content
[0004] The technical problem this utility model aims to solve is: how to design an electric testing fixture for a charging pile controller to facilitate testing.
[0005] The specific technical solution of this utility model is as follows:
[0006] An electric testing fixture for a charging pile controller includes a testing platform. An upper shell is fixed to the upper part of the testing platform, and a pressure plate is provided inside the upper shell. One end of a linear motor is fixedly connected to the pressure plate, and the other end of the linear motor is fixedly connected to the upper shell. A positioning plate is provided below the pressure plate and is fixed to the working position of the testing platform. The positioning plate has at least three positioning holes, and a positioning post is fixed in each positioning hole. The positioning plate has multiple probe holes, and multiple probes are provided in each probe hole. The number of probes matches the number of pins of the charging pile controller, and the number of positioning posts matches the number of controller holes of the charging pile controller.
[0007] Two guide rails are fixed between the testing platform and the upper shell. The pressure plate has two through holes for the guide rails to pass through. Two sliding cylinders are fixed on the pressure plate. The sliding cylinders are sleeved on the outside of the guide rails and slide in a sliding fit with the guide rails.
[0008] A connecting plate is fixed to the end of the linear motor, and the connecting plate is fixed to the upper surface of the pressure plate.
[0009] The probe is an elastic probe.
[0010] The upper shell is made of bakelite / frosted acrylic.
[0011] Compared with the prior art, the technical effect of this utility model is that it is equipped with a pressing linear motor, which facilitates full contact between the workpiece terminals and the probe, thereby improving work efficiency. Attached Figure Description
[0012] Figure 1This is a schematic diagram of the present invention.
[0013] Figure 2 This is a three-dimensional schematic diagram of the upper shell.
[0014] Figure 3 This is a frontal view of the upper shell.
[0015] Figure 4 This is a schematic diagram of the probe.
[0016] Figure 5 This is a schematic diagram of the positioning plate. Detailed Implementation
[0017] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0018] like Figure 1-3 An electric testing fixture for a charging pile controller includes a testing platform 10, an upper shell 11 fixed on the upper part of the testing platform 10, a pressure plate 20 provided inside the upper shell 11, one end of a linear motor 21 fixedly connected to the pressure plate 20, and the other end of the linear motor 21 fixedly connected to the upper shell 11. By extending and retracting the linear motor 21, the pressure plate 20 can move away from or closer to the upper shell 11.
[0019] like Figure 1 , Figure 4-5 Below the pressure plate 20 is a positioning plate 40, which is fixed to the working position of the testing table 10. It has at least three positioning holes 41, and a positioning post 42 is fixed in each positioning hole 41. The positioning plate 40 has multiple probe holes 43, and multiple probes 30 are provided in the probe holes 43. The number of probes 30 matches the number of pins of the charging pile controller, and the number of positioning posts 42 matches the number of controller holes of the charging pile controller.
[0020] like Figure 2-3 To facilitate control of the running path of the pressure plate 20, two guide rails 23 are fixed between the test platform 10 and the upper shell 11. The pressure plate 20 is provided with two through holes 22 for the guide rails 23 to pass through. Two sliding cylinders 25 are fixed on the pressure plate 20. The sliding cylinders 25 are sleeved on the guide rails 23 and slide in cooperation with the guide rails 23.
[0021] like Figure 2 To ensure stable operation, a connecting plate 24 is fixed to the end of the linear motor 21, and the connecting plate 24 is fixed to the upper surface of the pressure plate 20.
[0022] like Figure 4 To prevent poor contact between the probe and the terminal, the probe 30 is an elastic probe. The elastic probe can be found in patent document CN102608365A or patent document CN218415085U.
[0023] For ease of testing, the testing station 10 is a box containing a testing circuit. This testing circuit connects to the probe 30, the controller (not shown in the figure), and the display screen 16, which is located on the outer surface of the testing station 10. The testing circuit includes multiple push-button switches 17. Since the testing circuit and its electrical connections with the controller and display screen 16 are existing technologies, they will not be described in detail here.
[0024] For ease of processing, the upper shell 11 is made of bakelite / frosted acrylic.
[0025] Its working principle is as follows:
[0026] like Figure 1-5 The charging pile controller testing includes the following steps:
[0027] S1. Positioning: Place the charging pile controller 90 (hereinafter referred to as the workpiece) on the positioning plate 40, and align the controller hole of the workpiece with the positioning post 42. In this way, the precise positioning of the workpiece and the positioning plate 40 is completed.
[0028] S2, Pressing Down: The moving rod of the linear motor 21 extends, and the pressure plate 20 moves downward. When the pressure plate 20 presses on the workpiece and the probe 30 pierces the conformal coating of the workpiece, making full contact between the probe 30 and the solder of the workpiece's pins, the linear motor 21 stops. At this time, the workpiece and the detection circuit form a test circuit loop.
[0029] S3. Determine if the contact is good: If all probes 30 are in full contact with the solder of the workpiece pins, the display screen 16 will give a "Good contact" message.
[0030] S4. Perform the test. This is existing technology and will not be described in detail.
[0031] S5. Removal: After the inspection is completed, the moving rod of the linear motor 21 retracts, the pressure plate 20 moves upward, the workpiece is no longer constrained, and the workpiece can be removed, thus ending the process.
[0032] Features of this application:
[0033] S1, Bakelite / frosted acrylic enclosure is used for safety and dust protection of moving parts of tooling.
[0034] S2, the function of the pressing actuator is to press the test piece tightly so that it makes full contact with the probe until the test circuit is turned on.
[0035] S3, the operation and display panel can be used for test operations, emergency stops, and visual display of test results.
[0036] S4, the circuit components (detection circuit, etc.) and the fixture base provide power to the test fixture and the device under test and form a test circuit loop.
[0037] S5, the precision positioning plate is used for positioning the controller under test, with an accuracy of ±0.05mm, ensuring that the positioning accuracy meets the probe positioning requirements.
[0038] For other details, please refer to the existing technology.
[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.
Claims
1. A charging pile controller electric detection tool, comprising a detection table (10), an upper shell (11) is fixed on the upper part of the detection table (10), and a pressing plate (20) is arranged in the upper shell (11), characterized in that: The pressure plate (20) is fixedly connected to one end of the linear motor (21), and the other end of the linear motor (21) is fixedly connected to the upper shell (11). A positioning plate (40) is provided below the pressure plate (20). The positioning plate (40) is fixed at the working position of the testing table (10). It has at least three positioning holes (41). A positioning post (42) is fixed in each positioning hole (41). The positioning plate (40) has multiple probe holes (43). The probe holes (43) have multiple probes (30). The number of probes (30) matches the number of pins of the charging pile controller. The number of positioning posts (42) matches the number of controller holes of the charging pile controller.
2. The charging pile controller electric detection tooling according to claim 1, wherein: Two guide rails (23) are fixed between the testing platform (10) and the upper shell (11). Two through holes (22) are provided on the pressure plate (20) for the guide rails (23) to pass through. Two slide cylinders (25) are fixed on the pressure plate (20). The slide cylinders (25) are sleeved on the guide rails (23) and slide together with the guide rails (23).
3. The charging pile controller electric detection tooling according to claim 2, characterized in that: A connecting plate (24) is fixed to the end of the linear motor (21), and the connecting plate (24) is fixed to the upper surface of the pressure plate (20).
4. The charging pile controller electric detection tooling according to claim 1, wherein: The probe (30) is an elastic probe.
5. The charging pile controller electric detection tooling according to claim 1, wherein: The material of the upper shell (11) is bakelite / frosted acrylic.