Test module probe protection device for automobile wire harness detection
By designing a protective device consisting of a guard plate, a return spring, and a guide rod, the problems of easy probe damage and terminal damage were solved, enabling stable probe insertion and removal and efficient testing, thereby improving the production quality and efficiency of automotive parts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-04-10
AI Technical Summary
In the current mass production electrical testing of automotive parts assemblies, probes are easily damaged and terminals are easily damaged, resulting in testing errors and low production efficiency. Furthermore, probe failure affects testing stability.
Design a protective device including a guard plate, a return spring, and a guide rod. Through dynamic buffering and overload protection mechanisms, reduce probe mechanical wear, prevent terminal damage, and improve detection accuracy and production yield.
Significantly extends probe lifespan, reduces maintenance costs, improves detection stability and production yield, and ensures mass production efficiency and quality consistency.
Smart Images
Figure CN224109523U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile electronic detection, especially relates to a test module probe protection device for automobile wire harness detection. BACKGROUND
[0002] The electric test module is a core device for detecting the electrical performance of automobile parts assembly in automobile manufacturing, which realizes conduction test by contacting the terminals of the parts to be tested through probes, so as to ensure that the products meet the quality requirements.
[0003] The existing mass production electric test of automobile parts assembly mainly uses traditional test modules, the probes of which are in an exposed state and protrude from the surface of the module, the probe diameter is usually 0.5-3mm, and the exposed length is generally more than 12mm. During testing, the probe directly contacts the terminal of the automobile part to complete the conduction test. However, due to the slender probe and lack of effective protection, the probe is easy to bend or break during frequent plugging and unplugging, and the exposed probe tip may scratch the terminal surface, causing damage to the detected parts.
[0004] The above existing technology has the following defects: first, the exposed design of the probe makes it easy to be damaged under mechanical impact, and frequent replacement is required, increasing maintenance costs; second, the rigid contact between the probe and the terminal can cause terminal deformation or scratches, resulting in detection errors and reduced production yield; third, the industry has long been faced with the problem of test interruption caused by probe failure, which seriously affects the production efficiency and quality consistency of automobile parts assembly. INVENTION CONTENTS
[0005] In order to overcome the defects of probe damage and terminal damage, the utility model provides a test module probe protection device for automobile wire harness detection.
[0006] A test module probe protection device for automobile wire harness detection, comprising a butt joint block and a guard plate, a protection shell is connected in the butt joint block, a probe holder is installed in the protection shell, guide rods are connected to the left and right sides of the protection shell, the length of the guide rod is greater than the length of the probe holder, a return spring is sleeved on the guide rod, the guard plate is slidingly connected in the protection shell, the left and right ends of the guard plate are slidingly connected with the guide rods, one end of the return spring is connected with the guard plate, and the other end is connected with the protection shell, the guard plate is slidingly connected with the probe holder, and a protection assembly for protecting the probe holder is arranged at the bottom of the protection shell.
[0007] Optionally, the protection assembly comprises elastic sheets, a bottom frame is connected to the bottom of the protection shell, a plurality of elastic sheets are arranged on the top of the bottom frame, a connecting rod is connected to the middle of each elastic sheet, and the top of the connecting rod is connected with the probe holder.
[0008] Optionally, a ball is arranged in the through hole where the guard plate is connected with the guide rod, and the ball rolls with the guide rod.
[0009] Optionally, a damping pad is connected to the top surface of the left and right ends of the guard plate.
[0010] Optionally, a cleaning rubber pad is arranged on the top surface of the through hole where the guard plate is connected with the probe holder, and the diameter of the hole of the cleaning rubber pad is smaller than the diameter of the probe holder.
[0011] Optionally, a limiting plate is arranged in the protective shell, and the limiting plate is in limiting cooperation with the bottom plate of the probe holder.
[0012] Compared with the prior art, the utility model has the following advantages:
[0013] 1. The cooperation of the guard plate, the reset spring and the guide rod enables the guard plate to slide along the guide rod and compress the reset spring under the pushing force when the guard plate is inserted, thereby forming a dynamic buffering mechanism, significantly reducing the mechanical wear of the probe, prolonging the service life of the probe, and ensuring the stability of the detection process.
[0014] 2. When the probe is completely inserted and still subjected to an additional pushing force, the spring sheet absorbs the excess energy through elastic deformation, reduces the damage to the terminal, and improves the detection accuracy and the production yield of automobile parts through the overload protection mechanism of the protection assembly. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0016] Figure 2 It is a schematic diagram of the installation structure of the guide rod and the reset spring of the utility model.
[0017] Figure 3 It is an explosion diagram of the connection relationship between the spring sheet and the connecting rod of the utility model.
[0018] Figure 4 It is a sectional view of the connection structure of the guard plate and the ball of the utility model.
[0019] Meaning of reference signs in the drawing: 1: butt joint block, 2: probe holder, 3: protective shell, 4: guide rod, 5: reset spring, 6: guard plate, 7: bottom frame, 8: spring sheet, 9: connecting rod, 10: ball, 11: damping pad, 12: cleaning rubber pad, 13: limiting plate. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be described in further detail below in combination with the drawings. Only this declaration, the up, down, left, right, front, back, inside, outside and other orientation words appearing in the text or about to appear of the utility model are based on the drawings of the utility model, and it is not the specific limitation of the utility model.
[0021] Embodiment: a kind of for the test module probe protection device of automobile wire harness detection, as shown in Figure Figures 1-4 It includes docking block 1, probe frame 2, protective shell 3, guide rod 4, reset spring 5, guard plate 6 and protection assembly, protective shell 3 is connected in docking block 1, probe frame 2 is installed in protective shell 3, protective shell 3 left and right sides are connected with two guide rods 4, the length of each guide rod 4 is greater than the length of probe frame 2, reset spring 5 is set on each guide rod 4, guard plate 6 is slidably connected in protective shell 3, the left and right ends of guard plate 6 are slidably connected with guide rod 4, the middle part of guard plate 6 is made of flexible rubber material to adapt to different shapes of test interface;Two ends and the matching part of guide rod 4 are hard plastic, to ensure the sliding stability, and the top end of reset spring 5 is connected with guard plate 6, the bottom end is connected with protective shell 3, guard plate 6 is slidably connected with probe frame 2, protective shell 3 bottom is provided with protection assembly for protecting probe frame 2. Detection personnel aligns docking block 1 with automobile electrical test interface and applies thrust to insert, guard plate 6 first contacts with interface surface, under the action of thrust, guard plate 6 slides along guide rod 4 to the inside of protective shell 3, while compressing reset spring 5 set on guide rod 4. With the sliding of guard plate 6, probe frame 2 gradually extends from the through hole of guard plate 6, until completely inserted into the test terminal hole of automobile parts. In this process, the compression force of reset spring 5 and the plugging resistance form dynamic balance, to ensure that the probe insertion process is stable, avoid bending the probe due to instantaneous impact.
[0022] As shown in Figure 2 And Figure 3 , protection assembly includes bottom frame 7, spring piece 8 and connecting rod 9, bottom frame 7 is connected at the bottom of protective shell 3, a plurality of spring pieces 8 are arranged on the top of bottom frame 7, connecting rod 9 is connected in the middle of spring piece 8, and the top of connecting rod 9 is connected with probe frame 2. When the probe 2 is completely inserted, if the operator continues to apply excessive force, the limiting plate 13 at the bottom of the guard plate 6 will contact with the fixed structure in the protective shell 3, at this time the reset spring 5 is completely compressed. The excess force is transmitted to the spring piece 8 in the bottom frame 7 through the probe 2, forcing the spring piece 8 in the bottom frame 7 to elastically deform. The spring piece 8 absorbs excess energy during bending, preventing the docking block 1 from moving further. After releasing the docking block 1, the spring piece 8 relies on its own elastic reset, while the limiting plate 13 restricts the sliding range of the probe 2, ensuring accurate reset of the system.
[0023] As shown in Figure 4As shown, it also includes a ball 10, the through hole of the guard plate 6 connected with the guide rod 4 is provided with the ball 10, and the ball 10 rolls with the guide rod 4. During the insertion process, when the guard plate 6 slides along the guide rod 4, the ball 10 will convert the sliding friction into rolling friction, ensuring smooth operation.
[0024] As shown in Figure 2 and Figure 4 As shown, it also includes a shock pad 11, and the shock pad 11 is connected to the top surface of the left and right ends of the guard plate 6. After detection is completed, when the docking block 1 is pulled out from the automobile interface, the reset spring 5 quickly rebounds to push the guard plate 6 to reset. The shock pad 11 on the top of the guard plate 6 contacts the inner wall of the protective shell 3, and absorbs the impact force generated by the rebound of the reset spring 5 through its elastic deformation, thereby reducing the vibration and noise when the guard plate 6 resets.
[0025] As shown in Figure 2 As shown, it also includes a cleaning rubber pad 12, and the cleaning rubber pad 12 is arranged on the top surface of the through hole of the guard plate 6 connected with the probe holder 2. The diameter of the circular hole of the cleaning rubber pad 12 is slightly smaller than the diameter of the probe 2, and the cleaning rubber pad 12 is tightly attached to the surface of the probe 2 by elastic deformation, thereby cleaning the oxide through friction during the extension and retraction process.
[0026] As shown in Figure 2 As shown, it also includes a limiting plate 13, and the limiting plate 13 is connected inside the protective shell 3 and is in limiting cooperation with the bottom plate of the probe holder 2. When the docking block 1 is pulled out, the elastic sheet 8 rebounds to push the probe 2 to reset, and the limiting plate 13 prevents the probe 2 from being excessively retracted, thereby ensuring that the probe 2 stays at the preset position.
[0027] The detection personnel insert the docking block 1 into the automobile electrical detection position, and before the probe holder 2 is inserted into the electrical detection position, the guard plate 6 contacts the automobile component assembly, and the guard plate 6 is squeezed to slide along the guide rod 4, and at the same time, the reset spring 5 on the guide rod 4 is compressed. The probe holder 2 gradually penetrates the guard plate 6 and is inserted into the automobile, and during the mutual sliding of the guard plate 6 and the probe holder 2, the cleaning rubber pad 12 cleans the probe holder 2, and during the sliding process of the guard plate 6, the ball 10 effectively reduces the friction between the guard plate 6 and the guide rod 4. When the test module is completed, the docking block 1 can be clamped on the automobile component assembly, thereby offsetting the rebound force of the reset spring 5.
[0028] After the detection is completed, the docking block 1 is taken out, and when the probe holder 2 is separated from the automobile, the reset spring 5 rebounds to push the guard plate 6 to slide along the guide rod 4 to reset. After the docking block 1 is completely separated from the automobile component assembly, the shock pad 11 on the top of the guard plate 6 contacts the protective shell 3, thereby buffering the rebound force of the reset spring 5.
[0029] If the push block 1 is pushed too hard, the guard plate 6 is in contact with the bottom plate of the probe holder 2, and the reset spring 5 is completely compressed, and there is still a pushing force, at this time the probe holder 2 is squeezed by the connecting rod 9 to press the spring sheet 8, the spring sheet 8 is bent to absorb the pushing force, at this time the push block 1 is in rigid contact with the automobile parts assembly, preventing further pushing, after releasing the push block 1, the spring sheet 8 rebounds, the probe holder 2 and the guard plate 6 reset, and at the same time the limiting plate 13 restricts the sliding range of the probe 2, ensuring accurate resetting of the system.
[0030] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, is also included in the patent protection range of the present application.
Claims
1. A test module probe protection device for harness detection of an automobile, characterized by: The application relates to a probe protection device, which comprises a docking block (1) and a protective plate (6), the docking block (1) is connected with a protective shell (3), the protective shell (3) is installed with a probe rack (2), the protective shell (3) is connected with guide rods (4) on the left and right sides, the length of the guide rods (4) is greater than the length of the probe rack (2), the guide rods (4) are sleeved with return springs (5), the protective plate (6) is integrally and slidably connected in the protective shell (3), the left and right ends of the protective plate (6) are slidably connected with the guide rods (4), one end of the return spring (5) is connected with the protective plate (6), the other end of the return spring (5) is connected with the protective shell (3), the protective plate (6) is slidably connected with the probe rack (2), and the protective shell (3) is provided with a protection assembly at the bottom for protecting the probe rack (2).
2. A test module probe protection device for use in detecting an automotive wiring harness according to claim 1, characterized in that: The protection assembly comprises elastic sheets (8), the bottom of the protective shell (3) is connected with a bottom frame (7), the top of the bottom frame (7) is provided with a plurality of the elastic sheets (8), the elastic sheets (8) are all connected with connecting rods (9) in the middle, and the connecting rods (9) are connected with the probe rack (2) at the top.
3. A test module probe protection device for use in detecting an automotive wiring harness according to claim 2, characterized in that: Rolling balls (10) are arranged in through holes, in which the protective plate (6) is connected with the guide rods (4), and the rolling balls (10) are in rolling friction with the guide rods (4).
4. A test module probe protection device for use in detecting an automotive wiring harness according to claim 3, characterized in that: Damping pads (11) are connected to the top surfaces of the left and right ends of the protective plate (6).
5. A test module probe protection device for use in detecting an automotive wiring harness according to claim 4, characterized in that: A cleaning rubber pad (12) is arranged on the top surface of a through hole, in which the protective plate (6) is connected with the probe rack (2), and the diameter of a circular hole of the cleaning rubber pad (12) is smaller than the diameter of the probe rack (2).
6. A test module probe protection device for use in detecting an automotive wiring harness according to claim 5, characterized in that: A limiting plate (13) is connected in the protective shell (3), and the limiting plate (13) is in limiting cooperation with the bottom plate of the probe rack (2).