Stator three-phase short circuit device
By combining conductive clamps and drive clamping components, the stator phase terminals are automatically engaged and clamped, solving the problem of inconvenient operation during three-phase short circuit of the stator and improving production efficiency.
Patent Information
- Application Number
- CN202423200169.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-24
AI Technical Summary
In the existing technology, the operation of the three-phase short circuit of the stator needs to be performed manually, which is inconvenient and inefficient in high-temperature environments.
By combining conductive clamps and drive clamping components, and utilizing elastic elements and protrusions, automatic engagement and clamping are achieved, replacing manual connection of conductive sheets.
It improves the efficiency of stator three-phase short circuit and stator mass production line production efficiency, and reduces the inconvenience of high-temperature operation.
Smart Images
Figure CN223651765U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of stator three-phase short-circuit mechanisms, and particularly to a device for stator three-phase short-circuit. Background Technology
[0002] In the stator coating process, when the stator coils are heated by rotor induction, the three phases of the stator need to be short-circuited. Currently, the conductive plates are manually connected to the stator copper busbars using a locking method to short-circuit the three phases. This method requires one person to operate on a mass production line, and the stator temperature is around 100°C during assembly, making manual operation inconvenient and inefficient. Utility Model Content
[0003] This application provides a device for short-circuiting a three-phase stator. It solves the problem in the prior art where manual short-circuiting of a high-temperature stator is required, leading to inconvenience. The technical solution is as follows:
[0004] On one hand, a stator three-phase short-circuit device is provided, the stator three-phase short-circuit device comprising:
[0005] Conductive flexible busbar, and three sets of corresponding conductive clamps and drive clamping components;
[0006] The conductive clamp includes: a fixed conductive clamp arm and a movable clamp arm that are disposed opposite to each other and hinged together, and an elastic element located between the fixed conductive clamp arm and the movable clamp arm. The two ends of the elastic element are respectively connected to a first end of the fixed conductive clamp arm and a first end of the movable clamp arm. The second end of the movable clamp arm has a protrusion distributed between the fixed conductive clamp arm and the movable clamp arm, and the protrusion is arc-shaped on the side facing the fixed conductive clamp arm. A stator phase end is clamped between the second end of the fixed conductive clamp arm and the second end of the movable clamp arm.
[0007] The conductive flexible busbar is fastened to the side of the fixed conductive clamp arm in the three conductive clamps.
[0008] The driving clamping component is used to clamp the fixed conductive clamping arm in the corresponding conductive clamp.
[0009] Optionally, the second end of the fixed conductive clamping arm is chamfered on the side near the movable clamping arm.
[0010] Optionally, the fixed conductive clamping arm has a limiting mounting groove on the side facing the movable clamping arm, which is opposite to the protrusion and is used to support the stator phase end.
[0011] Optionally, the conductive flexible busbar includes a flexible copper busbar, which is simultaneously fastened to the fixed conductive clamp arm of the three conductive clamps;
[0012] Alternatively, the conductive flexible busbar includes: two flexible copper busbars, one of which is fastened to both the fixed conductive clamp arm in the first conductive clamp and the fixed conductive clamp arm in the second conductive clamp; the other of which is fastened to both the fixed conductive clamp arm in the second conductive clamp and the fixed conductive clamp arm in the third conductive clamp.
[0013] Optionally, the fixed conductive clamping arm includes: a fixed conductive clamping arm body, a fixed connecting member, and a locking member; the two ends of the elastic element are respectively connected to the first end of the fixed conductive clamping arm body and the first end of the movable clamping arm; the fixed connecting member is engaged with the driving clamping member.
[0014] Specifically, after the locking member is securely connected to both the fixed connecting member and the fixed conductive clamping arm body, the fixed conductive clamping arm body is securely connected to the fixed connecting member.
[0015] Optionally, the driving clamping member includes: a driving component and two clamping portions disposed opposite each other, wherein the ends of the clamping portions have limiting clamping grooves;
[0016] The driving component is configured to drive the two clamping parts to move towards each other or away from each other, so as to clamp the end of the fixed connector or release the fixed connector through the limiting clamping groove.
[0017] Optionally, the clamping part includes: a moving part, a clamp, a limiting rod and a first elastic element, the two moving parts are distributed on both sides of the fixed connector and are both connected to the driving component, and the moving part has a limiting groove on the side facing the fixed connector;
[0018] A portion of the chuck is located within the limiting slide groove and is slidably connected to the limiting slide groove; the chuck has the limiting chuck groove.
[0019] One end of the limiting rod is fastened to the side of the clamp away from the fixed connector; the first elastic element is sleeved on the limiting rod and its two ends are in contact with the bottom wall of the clamp and the limiting groove, respectively; the other end of the limiting rod abuts against the side of the moving part away from the fixed connector.
[0020] Optionally, the end of the fixing connector has a polygonal structure, and the shape of the limiting groove matches the shape of the end of the fixing connector.
[0021] The beneficial effects of the technical solutions provided in this application include at least the following:
[0022] A stator three-phase short-circuit device includes three sets of conductive clamps and driving clamping components. An elastic element is provided between the hinged fixed and movable conductive clamp arms within the conductive clamps. The driving clamping components grip the fixed conductive clamp arm, moving it towards the stator phase end. The movable clamp arm's protruding arc surface contacts the stator phase end and continues to move closer to it. Under the automatic guidance of the protrusion and the elastic deformation of the elastic element, the stator phase end A is engaged and clamped with the conductive clamp. This eliminates the need for manual connection of conductive plates to the stator phase end, as required by related technologies, thus improving the efficiency of the stator three-phase short circuit and the production efficiency of stator mass production lines integrating this device. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the structure of a stator three-phase short-circuit device provided in an embodiment of this application;
[0025] Figure 2 yes Figure 1 Another perspective schematic diagram of the stator three-phase short-circuit device shown;
[0026] Figure 3 This is a schematic diagram illustrating the installation effect of a stator three-phase short-circuit device and the stator three phases provided in an embodiment of this application.
[0027] Figure 4 This is a schematic diagram of another stator three-phase short-circuit device provided in an embodiment of this application;
[0028] Figure 5 This is a schematic diagram of a set of conductive clips and driving clamping components provided in the application embodiment;
[0029] Figure 6 This is a partial structural cross-sectional view of a stator three-phase short-circuit device provided in an embodiment of this application;
[0030] Figure 7 This is a partial structural schematic diagram of another stator three-phase short-circuit device provided in an embodiment of this application.
[0031] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0034] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
[0035] This application provides a device for stator three-phase short circuit. The device includes three sets of conductive clamps 200 and driving clamping members 300. An elastic element 203 is provided between the fixed conductive clamping arms 201 and the movable clamping arms 202 of the conductive clamps 200, which are hinged to each other. Thus, after the driving clamping member 300 clamps the fixed conductive clamping arms 201 of the conductive clamps 200, it drives the conductive clamps 200 to the stator phase end A. The arc surface of the protrusion 202a in the movable clamping arm 202 contacts the stator phase end A and continues to move closer to it. Under the automatic guidance of the protrusion 202a and the elastic deformation of the elastic element 203, the stator phase end A is fitted and clamped with the conductive clamps 200. This eliminates the need for manual connection of conductive sheets to the stator phase ends, as required by related technologies, thus improving the efficiency of stator three-phase short circuit and the production efficiency of stator mass production lines integrating this device.
[0036] The following examples illustrate the specific implementation of the stator three-phase short-circuit device:
[0037] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1This is a schematic diagram of the structure of a stator three-phase short-circuit device provided in an embodiment of this application. Figure 2 yes Figure 1 This is a schematic diagram of another perspective of the device for stator three-phase short circuit. Figure 3 This is a schematic diagram illustrating the installation effect of a stator three-phase short-circuit device provided in an embodiment of this application. The stator three-phase short-circuit device may include: a conductive flexible busbar 100, and three sets of conductive clamps 200 and driving clamping components 300.
[0038] Each conductive clamp 200 in the stator three-phase short-circuit device may include: a fixed conductive clamp arm 201 and a movable clamp arm 202 that are disposed opposite to each other and hinged, and an elastic element 203 located between the fixed conductive clamp arm 201 and the movable clamp arm 202. The two ends of the elastic element 203 may be connected to the first ends of the fixed conductive clamp arm 201 and the movable clamp arm 202, respectively. The second end of the movable clamp arm 202 may have a protrusion 202a distributed between the fixed conductive clamp arm 201 and the movable clamp arm 202, and the side of the protrusion 202a facing the fixed conductive clamp arm 201 may be arc-shaped. Here, a stator phase A can be clamped between the second end of the fixed conductive clamp arm 201 and the second end of the movable clamp arm 202.
[0039] The conductive flexible busbar 100 in the stator three-phase short-circuit device can be fixedly connected to the side of the fixed conductive clamp arm 201 among the three conductive clamps 200.
[0040] The drive clamping component 300 in the stator three-phase short-circuit device can be used to clamp the fixed conductive clamping arm 201 in the corresponding conductive clamp 200.
[0041] For example, the process of short-circuiting the stator phase terminals using a device for three-phase stator short circuits is illustrated here:
[0042] First, the fixed conductive clamping arm in the conductive clamp is clamped using a driving clamping component;
[0043] Then, the driving clamping component drives the conductive clamp to automatically engage and clamp with the stator phase end;
[0044] Finally, the drive clamp is separated from the conductive clamp, allowing the three conductive components to be connected to the three phase terminals of the stator respectively. It should be noted that when disassembling the conductive clamp from the stator phase terminals, the drive clamp simply grips the conductive clamp and pulls it upwards to separate them.
[0045] In this application, as Figure 2As shown, a chamfer D can be provided on the side of the second end of the fixed conductive clamping arm 201 near the movable clamping arm 202. In this case, by providing a chamfer D on the side of the second end of the fixed conductive clamping arm 201 near the movable clamping arm 202, the convenience of engaging the conductive clamp 200 with the stator phase end A can be further improved by the cooperation between the chamfer D and the protrusion 202a in the movable clamping arm 202.
[0046] Optionally, the fixed conductive clamping arm 201 may have a limiting mounting groove C on the side facing the movable clamping arm 202, which is opposite to the protrusion 202a in the movable clamping arm 202. This limiting mounting groove C can be used to support the stator phase end A. In this way, after the stator phase end A is fitted between the fixed conductive clamping arm 201 and the movable clamping arm 202, it can be installed in the limiting mounting groove C, which can effectively prevent the stator phase end A from sliding out from the side of the conductive clamp 200, thereby ensuring the connection stability between the conductive clamp 200 and the stator phase end A.
[0047] In this embodiment of the application, the conductive flexible busbar 100 in the stator three-phase short-circuit device may include a flexible copper busbar, which can be simultaneously fastened to the fixed conductive clamp arm 201 of the three conductive clamps 200.
[0048] Alternatively, please refer to Figure 4 , Figure 4 This is a schematic diagram of another stator three-phase short-circuit device provided in this application embodiment. The flexible conductive busbar 100 may include two flexible copper busbars 101. One flexible copper busbar 101 can be securely connected to the side of the fixed conductive clamp arm 201 in the first conductive clamp 200 and the side of the fixed conductive clamp arm 201 in the second conductive clamp 200. The other flexible copper busbar 101 can be securely connected to the side of the fixed conductive clamp arm 201 in the second conductive clamp 200 and the side of the fixed conductive clamp arm 201 in the third conductive clamp 200. In this way, the flexible copper busbar achieves a flexible connection of the three conductive clamps 200, allowing for a certain positional error of the three-phase terminals when the conductive clamps 200 are engaged with the stator phase terminals A, thus improving the flexibility of the stator three-phase short-circuit device.
[0049] Optional, please refer to Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of a set of conductive clips and driving clamping components provided in the embodiment of the application. Figure 6This is a partial structural cross-sectional view of a stator three-phase short-circuit device provided in an embodiment of this application. The fixed conductive clamping arm 201 may include: a fixed conductive clamping arm body 201a, a fixed connecting member 201b, and a locking member 201c. The two ends of the elastic element 203 can be connected to the first end of the fixed conductive clamping arm body 201a and the first end of the movable clamping arm 202, respectively. The fixed connecting member 201b can cooperate with the driving clamping member 300. After the locking member 201c is securely connected to both the fixed connecting member 201b and the fixed conductive clamping arm body 201a, the fixed conductive clamping arm body 201a can be securely connected to the fixed connecting member 201b. Thus, the conductive clamp 200, including the fixed conductive clamping arm body 201a, can flexibly adjust its relative position to the stator phase ends, and then the locking member 201c locks the fixed conductive clamping arm body 201a and the fixed connecting member 201b together. The fixed connector 201b can be used in conjunction with the drive clamping member 300 for clamping.
[0050] For example, such as Figure 6 As shown, the first end of the fixed conductive clamping arm body 201a may have a connecting hole k, and one end of the fixed connecting member 201b may pass through the connecting hole k and be fastened to the locking member 201c. For example, the fixed connecting member 201b may be a screw, and the locking member 201c may be a locking nut that mates with the screw.
[0051] In the embodiments of this application, please refer to Figure 5 and Figure 7 , Figure 7 This is a partial structural schematic diagram of another stator three-phase short-circuit device provided in this application embodiment. The drive clamping member 300 in the stator three-phase short-circuit device may include: a drive component 301 and two clamping portions 302 disposed opposite each other. The ends of the clamping portions 302 may have limiting grooves 302a. The drive component 301 may be configured to drive the two clamping portions 302 to move towards each other or away from each other, so as to clamp or release the end of the fixed connector 201b through the limiting grooves 302a in the clamping portions 302. Thus, when the drive component 301 drives the two clamping portions 302 to move towards each other, the end of the fixed connector 201b can be clamped through the limiting grooves 302a in the clamping portions 302. When the drive component 301 drives the two clamping portions 302 to move away from each other, the clamping portions 302 can be separated from the end of the fixed connector 201b.
[0052] In this application, as Figure 5 and Figure 6As shown, the clamping portion 302 in the driving clamping member 300 may include: a moving member 3021, a chuck 3022, a limiting rod 3023, and a first elastic element 3024. The moving members 3021 in the two clamping portions 302 may be distributed on both sides of the fixed connector 201b and can be transmittedly connected to the driving member 301. The side of the moving member 3021 facing the fixed connector 201b may have a limiting groove H. A portion of the chuck 3022 may be located within the limiting groove H in the moving member 3021 and can be slidably connected to the limiting groove H. The chuck 3022 may have a limiting clamping groove 302a. One end of the limiting rod 3023 may be fastened to the side of the chuck 3022 away from the fixed connector 201b. The first elastic element 3024 may be sleeved on the limiting rod 3023 and its two ends may respectively contact the bottom wall of the chuck 3022 and the limiting groove H. The other end of the limiting rod 3023 can abut against the side of the moving part 3021 away from the fixed connector 201b. Thus, when the driving component 301 drives the two moving parts 3021 to move towards each other, the two clamps 3022 can clamp the end of the fixed connector 201b. When the driving component 301 drives the two moving parts 3021 to move away from each other, the moving part 3021, through the limiting rod 3023, drives the clamps 3022 to move away from the fixed connector 201b. Furthermore, a first elastic element 3024, sleeved on the limiting rod 3023, is provided between the clamps 3022 and the bottom wall of the limiting groove H. This first elastic element 3024 allows the clamps 3022 to have a certain stroke, absorbing positional errors of the three-phase terminals and providing good applicability to different three-phase terminals.
[0053] Optional, such as Figure 7 As shown, the end of the fixing connector 201b in the fixed conductive clamping arm 201 can be a polygonal structure, and the shape of the limiting groove 302a in the clamping part 302 can match the shape of the end of the fixing connector 201b. Thus, by setting the end of the fixing connector 201b to a polygonal structure, the polygonal structure, in conjunction with the limiting groove 302a, can prevent the conductive clamp 200 from rotating arbitrarily. For example, the end of the fixing connector 201b can be a cubic structure.
[0054] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.
[0055] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A device for stator three-phase short circuit, characterized in that, include: Conductive flexible busbar, and three sets of corresponding conductive clamps and drive clamping components; The conductive clamp includes: a fixed conductive clamp arm and a movable clamp arm that are disposed opposite to each other and hinged together, and an elastic element located between the fixed conductive clamp arm and the movable clamp arm. The two ends of the elastic element are respectively connected to a first end of the fixed conductive clamp arm and a first end of the movable clamp arm. The second end of the movable clamp arm has a protrusion distributed between the fixed conductive clamp arm and the movable clamp arm, and the protrusion is arc-shaped on the side facing the fixed conductive clamp arm. A stator phase end is clamped between the second end of the fixed conductive clamp arm and the second end of the movable clamp arm. The conductive flexible busbar is fastened to the side of the fixed conductive clamp arm in the three conductive clamps. The driving clamping component is used to clamp the fixed conductive clamping arm in the corresponding conductive clamp.
2. The stator three-phase short-circuit device according to claim 1, characterized in that, The second end of the fixed conductive clamping arm has a chamfer on the side near the movable clamping arm.
3. The stator three-phase short-circuit device according to claim 2, characterized in that, The fixed conductive clamping arm has a limiting mounting groove on the side facing the movable clamping arm, which is opposite to the protrusion and is used to support the stator phase end.
4. The stator three-phase short-circuit device according to claim 1, characterized in that, The conductive flexible busbar includes a flexible copper busbar, which is simultaneously fastened to the fixed conductive clamp arm of the three conductive clamps. Alternatively, the conductive flexible busbar includes: two flexible copper busbars, one of which is fastened to both the fixed conductive clamp arm in the first conductive clamp and the fixed conductive clamp arm in the second conductive clamp; the other of which is fastened to both the fixed conductive clamp arm in the second conductive clamp and the fixed conductive clamp arm in the third conductive clamp.
5. The stator three-phase short-circuit device according to any one of claims 1-4, characterized in that, The fixed conductive clamping arm includes: a fixed conductive clamping arm body, a fixed connecting member, and a locking member. The two ends of the elastic element are respectively connected to the first end of the fixed conductive clamping arm body and the first end of the movable clamping arm. The fixed connecting member is connected to the driving clamping member. Specifically, after the locking member is securely connected to both the fixed connecting member and the fixed conductive clamping arm body, the fixed conductive clamping arm body is securely connected to the fixed connecting member.
6. The stator three-phase short-circuit device according to claim 5, characterized in that, The drive clamping member includes: a drive component, and two clamping portions disposed opposite each other, wherein the ends of the clamping portions have limiting clamping grooves; The driving component is configured to drive the two clamping parts to move towards each other or away from each other, so as to clamp the end of the fixed connector or release the fixed connector through the limiting clamping groove.
7. The stator three-phase short-circuit device according to claim 6, characterized in that, The clamping part includes: a moving part, a clamp, a limiting rod and a first elastic element. The two moving parts are distributed on both sides of the fixed connector and are both connected to the driving component. The moving part has a limiting groove on the side facing the fixed connector. A portion of the chuck is located within the limiting slide groove and is slidably connected to the limiting slide groove; the chuck has the limiting chuck groove. One end of the limiting rod is fastened to the side of the clamp away from the fixed connector; the first elastic element is sleeved on the limiting rod and its two ends are in contact with the bottom wall of the clamp and the limiting groove, respectively; the other end of the limiting rod abuts against the side of the moving part away from the fixed connector.
8. The stator three-phase short-circuit device according to claim 6 or 7, characterized in that, The end of the fixed connector has a polygonal structure, and the shape of the limiting groove matches the shape of the end of the fixed connector.