Wire harness detection pen and detection device with same
By designing a divergent wire harness testing pen and testing device, the problem of large testing errors in wound stators was solved, achieving more efficient and accurate testing and improving the factory pass rate of wound stators.
Patent Information
- Application Number
- CN202422924553.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-11-27
AI Technical Summary
The existing technology has a large detection error for wire-wound stators, which affects the yield rate of wire-wound stators.
Design a wire harness inspection pen with a diverging pen tip that can fully cover the entire surface of the stator enameled wire. The pen contacts the stator enameled wire through multiple detection contacts or brush filaments, and the operation process is simplified when combined with a testing device.
This improved the detection speed and accuracy of the coiled stator, reduced the risk of errors, and increased the yield of finished products.
Smart Images
Figure CN223857273U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to circuit detection equipment technical field, concretely relates to a wire harness detection pen and detection device with it. BACKGROUND
[0002] The embedded stator is a stator structure in a motor or a generator, which provides an electromagnetic field by embedding coils. The stator is a fixed part in the motor, which is usually composed of a core and a winding, and a magnetic field is generated by the winding of the stator through the current, thereby generating a force with the rotor to make the rotor rotate. The embedded stator is usually used in an alternating current motor and a generator, which improves the efficiency of the stator and reduces the loss by embedding the coils directly into the slots of the stator core.
[0003] After the enameled wire of the embedded stator is damaged, the conductor of the enameled wire may directly contact the stator core, resulting in local short circuit or electric leakage. This fault may seriously affect the operating performance of the motor, and even cause serious problems such as overheating and burning. Therefore, the embedded stator produced needs to be detected before being shipped.
[0004] When the embedded stator is detected, the current between the surface of the enameled wire of the embedded stator and the end lead is measured by a current-voltage tester. When the current value detected by the tester exceeds the preset value, an alarm will be issued, proving that the enameled wire of the embedded stator is damaged, resulting in the direct contact between the radial direction of the enameled wire and the stator core, and the occurrence of short circuit. In the prior art, the positive and negative terminals of the tester are in contact with the detected part through the pen to perform testing. However, since the contact area between the metal pen head of the pen and the stator core is small, only some points can be selected for detection, resulting in a large error probability in the accuracy of detection, which affects the yield of the finished embedded stator. UTILITY MODEL CONTENTS
[0005] Therefore, the utility model provides a wire harness detection pen and a detection device with the same to solve the problem of large detection error probability of the embedded stator in the prior art.
[0006] In the first aspect, the utility model provides a wire harness detection pen, which comprises:
[0007] A detection pen body, which is internally provided with an electrical lead;
[0008] A detection pen head, which is in conductive connection with the electrical lead, one end of the detection pen head is in matching connection with the end part of the detection pen body, and the other end is in a divergent shape, and the end of the detection pen head in the divergent shape is adapted to contact the wire harness to be detected.
[0009] When the stator enameled wire on the embedded wire stator is detected by the wire bundle detection pen, the detection pen is contacted with the stator enameled wire at one end of the pen in a divergent manner, and is continuously moved along the circumferential direction of the stator enameled wire. As the detection pen head moves around the stator enameled wire for one or more rounds, the divergent detection pen head can contact all positions of the stator enameled wire. After the wire bundle detection pen is connected with the detection device, if the outer skin of the stator enameled wire is damaged to cause short circuit of the stator enameled wire in the radial direction with the stator core, the stator enameled wire at the damaged position is contacted with the detection pen head, and the detection device can detect and send an alarm signal. By setting the divergent detection pen head on the detection pen body, the divergent detection pen head is used to continuously contact the stator enameled wire of the embedded wire stator in the circumferential direction for detection, which can greatly increase the detection speed of the stator enameled wire end surface of the embedded wire stator, greatly reduce the error risk caused by the randomness of the detection position, and thus improve the yield of the embedded wire stator.
[0010] In an alternative embodiment, the detection pen head end has a plurality of detection contacts, and the plurality of detection contacts are adapted to simultaneously contact the wire bundle to be detected.
[0011] In an alternative embodiment, the detection pen head comprises a plurality of detection brush filaments arranged in a divergent manner, and the end of each detection brush filament forms a detection contact. The detection pen head is formed by the bundled detection brush filaments, so that the detection pen head end can contact the stator enameled wire of the embedded wire stator for detection, which can greatly reduce the error probability of missing detection at a certain position of the stator enameled wire, and improve the accuracy of the detection result.
[0012] In an alternative embodiment, the detection pen head is adapted to plastically deform under the action of an external force. The detection pen head can be formed by a conductive metal wire or a conductive metal sheet. By ensuring that the detection pen head can deform under the action of an external force and the deformation does not disappear after the external force is removed, the shape of the detection pen head end can be adjusted by hand or an external tool, so that the shape of the detection pen head end can match the surface shape of the stator enameled wire, and at the same time, a certain pressure can be applied to the stator enameled wire when the detection pen head contacts the stator enameled wire, so that stable contact can be ensured, and detection errors caused by virtual contact or gaps between the detection pen head end and the stator enameled wire can be avoided.
[0013] In an alternative embodiment, the detection pen head comprises a fixing member and a brush member, one end of the brush member is fixedly connected with the fixing member, the other end is arranged in a divergent manner, and the fixing member is connected with the detection pen body. By setting the detection pen head as a component of the fixing member and the brush member, the brush member can be replaced according to different models and sizes of the embedded wire stator, so as to adapt to various products.
[0014] In an alternative embodiment, the fixing member is rotatably connected to the detection pen body.
[0015] In an alternative embodiment, the detection pen head is flush with the end of the detection pen body; or, the detection pen head is in the shape of a sector.
[0016] In an alternative embodiment, the divergence angle of the detection pen head is 10°-170°.
[0017] In a second aspect, the utility model also provides a detection device with the wiring harness detection pen.
[0018] In an alternative embodiment, the detection device comprises a detection member body, and a pair of conductive leads are connected to the detection member body, one end of one of the conductive leads is connected to the wiring harness detection pen, and the other end of the other conductive lead is connected to an electrode clamp. When the detection device is used to detect short circuit of the embedded wire stator, the electrode clamp is clamped on the lead wire of the embedded wire stator, and the wiring harness detection pen is rotated along the embedded wire stator in the circumferential direction, so that only one electrode needs to be operated during detection, and the electrode clamp can be placed arbitrarily after clamping the lead wire, thereby simplifying the detection process and improving the detection efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings described below are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.
[0020] Figure 1 Fig. 1 is a structural schematic view of the wiring harness detection pen provided in the embodiments of the utility model.
[0021] Figure 2 Fig. 2 is a structural schematic view of the detection pen head provided in the embodiments of the utility model.
[0022] Marked with: 1, detection pen body; 2, detection pen head; 201, fixing member; 202, brush member. DETAILED DESCRIPTION
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0024] The following is combined Figure 1 and Figure 2 The following describes embodiments of the present invention.
[0025] According to an embodiment of the present invention, in one aspect, a wire harness detection pen is provided, such as... Figure 1 As shown, it includes a test pen body 1 and a test pen tip 2. An electrical wire is provided inside the test pen body 1, and the test pen tip 2 is electrically connected to the electrical wire. One end of the test pen tip 2 is connected to the end of the test pen body 1, and the other end is radiating. The radiating end of the test pen tip 2 is suitable for contacting the wire harness to be tested.
[0026] When using a wire harness testing pen to inspect the stator enameled wire on a wound stator, the pen tip is positioned so that its diverging end contacts the stator enameled wire and moves continuously along the circumference of the wire. As the pen tip 2 moves around the stator enameled wire one or more times, it can reach all points on the wire. After the wire harness testing pen is connected to the testing device, if the outer sheath of the stator enameled wire is damaged, causing a short circuit due to direct radial contact with the stator core, the testing equipment can detect this and issue an alarm signal when the damaged area contacts the pen tip 2. Because the pen tip 2 has a diverging shape, it can completely cover the entire surface of the stator enameled wire. During testing, if the outer sheath of the stator enameled wire is damaged, causing a short circuit to occur radially with the stator core, the testing equipment can promptly detect the abnormality and issue an alarm signal when the damaged area contacts the pen tip 2. By setting a diverging detection pen tip 2 on the detection pen body 1, the diverging detection pen tip 2 continuously contacts the stator enameled wire of the embedded stator in the circumferential direction for detection, which improves the speed and efficiency of stator enameled wire detection, reduces the error risk caused by random detection positions, and improves the detection accuracy of stator enameled wire and the factory pass rate of embedded stators.
[0027] In one embodiment, the end of the detection pen head 2 has a plurality of detection contacts adapted to be in direct contact with the wire harness to be detected at the same time. Through the cooperation of the plurality of detection contacts, the detection pen head 2 can simultaneously detect multiple positions in a single contact process, and can complete the overall detection of the wire harness to be detected in a shorter time, thereby significantly improving the detection efficiency and accuracy. The arrangement of the plurality of detection contacts not only increases the contact area of the detection, but also effectively disperses the detection pressure, ensuring that each contact point uniformly contacts the wire harness to be detected during the detection process, avoiding the problem of poor contact or missed detection caused by a single contact point.
[0028] Specifically, the detection pen head 2 includes a plurality of detection brush filaments arranged in a diverging shape, and the end of each detection brush filament can form a detection contact. The detection pen head 2 is composed of a bundle of detection brush filaments, so that each part of the end of the detection pen head 2 can contact and detect the stator enameled wire of the embedded wire stator, which can greatly reduce the error probability of missed detection at a certain position of the stator enameled wire and improve the accuracy of the detection result.
[0029] In one embodiment, the detection pen head 2 is adapted to plastically deform under the action of an external force. The detection pen head 2 can be composed of a bundle of conductive metal wires such as iron wire, aluminum wire, copper wire, or a conductive metal sheet. By ensuring that the detection pen head 2 can deform under the action of an external force and the deformation does not disappear after the external force is removed, the shape of the end of the detection pen head 2 can be adjusted by hand or external tools, so that the shape of the end of the detection pen head 2 can match the surface shape of the stator enameled wire, and the end of the detection pen head 2 can be in close contact with the surface of the stator enameled wire and apply appropriate pressure during contact, thereby ensuring stable electrical contact and avoiding detection errors caused by poor contact or gaps between the detection pen head 2 and the stator enameled wire. This can improve detection accuracy, reduce false positives caused by poor contact, and ensure the reliability of the detection result. Moreover, compared with the hard tip in the related art, the detection pen head 2 in this embodiment exerts less force on the stator enameled wire and the force is more dispersed when the detection pen head 2 contacts the stator enameled wire, which can protect the stator enameled wire from being scratched during detection.
[0030] In one embodiment, as shown in Figure 2 The detection pen head 2 includes a fixed part 201 and a brush part 202, one end of the brush part 202 is fixedly connected with the fixed part 201, the other end is arranged in a diverging shape, and the fixed part 201 is connected with the detection pen body 1. By arranging the detection pen head 2 as a combination of the fixed part 201 and the brush part 202, the brush part 202 can be replaced according to different models and sizes of the embedded wire stator to adapt to various products. The fixed part 201 and the detection pen body 1 can be integrally formed or fixedly connected, or can be detachably connected by magnetic attraction, buckling, threading, etc.
[0031] In one embodiment, the fixing member 201 is rotatably connected with the detection pen body 1. The user can adjust the angle of the fixing member 201 according to the needs, so as to optimize the angle and position of the detection pen head 2 contacting the wire harness to be detected, thereby improving the accuracy and stability of the detection.
[0032] In one embodiment, the detection pen head 2 is flush with the end of the detection pen body 1, and the divergence angle of the detection pen head 2 can be any angle within the range of 10°-170°. The divergence angle of the detection pen head 2 can be accurately adjusted according to different detection needs, so as to adapt to the shapes and sizes of different types of wire harnesses and stator enameled wires. The user can select the most suitable angle according to the geometric characteristics of the specific detection object for adjustment, so as to ensure that the contact position and angle of the detection pen head 2 with the wire harness to be detected are optimally optimized during the detection process, thereby improving the accuracy and stability of the detection. In some other embodiments, the detection pen head 2 can also be a fan shape or an arc shape concave at the end away from the detection pen body 1.
[0033] According to the embodiments of the utility model, on the other hand, a detection device is also provided, which has the wire harness detection pen of the utility model. Specifically, the detection device comprises a detection member body, and a pair of conductive leads are connected to the detection member body, one end of one of the conductive leads is connected with the wire harness detection pen, and the other end of the other conductive lead is connected with an electrode clamp. When the detection device is used to detect the short circuit of the embedded wire stator, the electrode clamp is clamped on the lead wire of the embedded wire stator, and the wire harness detection pen can be rotated along the circumference of the embedded wire stator by operation. Only one electrode needs to be operated during the detection, and the electrode clamp can be placed arbitrarily after clamping the lead wire, which simplifies the detection process and improves the detection efficiency.
[0034] Although the embodiments of the utility model have been described in conjunction with the drawings, various modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and variations all fall within the scope defined by the appended claims.
Claims
1. A wiring harness detection pen, characterized by, The utility model relates to a wire harness detection pen, comprising: A detection pen body (1) is internally provided with electric wires; A detection pen head (2) is in conductive connection with the electric wires, one end of the detection pen head (2) is in matched connection with the end of the detection pen body (1), and the other end is in a divergent shape, and the end of the detection pen head (2) in the divergent shape is suitable for contacting with a wire harness to be detected.
2. The wire harness detection pen of claim 1, wherein, The end of the detection pen head (2) is provided with a plurality of detection contacts, and the plurality of detection contacts are suitable for directly contacting with the wire harness to be detected at the same time.
3. The wire harness detection pen of claim 2, wherein, The detection pen head (2) comprises a plurality of detection brush filaments, and the plurality of detection brush filaments are arranged in a divergent shape.
4. The wire harness detection pen according to any one of claims 1 to 3, characterized by The detection pen head (2) is suitable for plastic deformation under the action of external force.
5. The wire harness detection pen according to any one of claims 1 to 3, characterized by The detection pen head (2) comprises a fixing member (201) and a brush member (202), one end of the brush member (202) is fixedly connected with the fixing member (201), the other end is arranged in a divergent shape, and the fixing member (201) is in matched connection with the detection pen body (1).
6. The wire harness detection pen of claim 5, wherein, The fixing member (201) is in rotary connection with the detection pen body (1).
7. The wire harness detection pen according to any one of claims 1 to 3, characterized by The end of the detection pen head (2) away from the detection pen body (1) is flush; or the detection pen head (2) is in a fan shape.
8. The wire harness detection pen according to any one of claims 1 to 3, characterized by The divergent angle of the detection pen head (2) is 10-170 degrees.
9. A detection device, characterized in that The utility model relates to a wire harness detection pen.
10. The detection device of claim 9, wherein, The utility model relates to a wire harness detection pen, comprising a detection member body, a pair of conductive lead wires are connected on the detection member body, one end of the conductive lead wire is connected with the wire harness detection pen, and the other end of the conductive lead wire is connected with an electrode clamp.