Stator tap changer, stator tap changer device and stator tap changer test system

Abstract

The application relates to the technical field of stator wire distribution, in particular to a stator wire distributor, a stator wire distribution device and a stator wire distribution test system. The stator wire distributor comprises a containing cavity for containing a stator core and a marking surface provided with wire distribution line marks, the wire distribution line marks are arranged circumferentially along the containing cavity and used for indicating the wire distribution of the outgoing wires of the stator core; the stator wire distributor further comprises a positioning structure used for positioning the position of the stator core in the containing cavity so that the outgoing wires of the stator core correspond to the wiring points on the wire distribution line marks. Since the wire distribution line marks are arranged, the workers can refer to the wire distribution line marks during wire distribution operation, and the difficulty of starting work can be reduced.

Description

Technical Field

[0001] This application relates to the field of stator branching technology, specifically to a stator brancher, a stator branching device, and a stator branching test system. Background Technology

[0002] In the current stator winding process for motors, each individual stator core needs to be manually marked and then wound according to the wiring diagram. Furthermore, after the coils are embedded in the core, many identical terminals are left, and these terminals also need to be accurately connected according to the wiring diagram.

[0003] The above-mentioned operating methods require operators to have a deep memory and understanding of the branch line diagrams, which makes it a significant challenge for employees to learn and master the branch line operations. Utility Model Content

[0004] To reduce the learning curve for employees, this application provides a stator divider, a stator dividing device, and a stator dividing test system.

[0005] According to a first aspect, one embodiment provides a stator splitter, comprising:

[0006] The cavity is used to house the stator core.

[0007] And a marking surface, which is provided with branch line markings, the branch line markings being arranged circumferentially along the receiving cavity, for indicating the branch lines of the stator core leads;

[0008] The stator distributor also includes a positioning structure for positioning the stator core within the receiving cavity so that the lead wires of the stator core correspond to the connection points on the branch line markings.

[0009] In one embodiment, the stator splitter includes:

[0010] The column section is provided with the receiving cavity, and the receiving cavity is provided with an installation port for the stator core to be installed;

[0011] A flange portion is provided on the column portion corresponding to the mounting port, and the surfaces of the flange portion and the column portion together form the marking surface.

[0012] In one embodiment, the positioning structure includes at least one positioning protrusion disposed on the cavity sidewall of the receiving cavity. The positioning protrusion is arranged along the axial direction of the receiving cavity and is used to engage with a groove on the outer surface of the stator core to limit the circumferential displacement of the stator core in the receiving cavity.

[0013] In one embodiment, the receiving cavity is provided with a detachable support member, and the peripheral wall of the support member is provided with a positioning notch corresponding to the positioning protrusion. The support member is used to adjust the axial dimension of the receiving cavity to accommodate stator cores of different specifications.

[0014] According to a second aspect, one embodiment provides a stator branching device, comprising:

[0015] Base;

[0016] A rotating assembly is mounted on the base;

[0017] And the stator distributor described in any of the above embodiments, which is rotatably mounted on the base by the rotating assembly so that the stator distributor can rotate about its axis.

[0018] In one embodiment, the rotating assembly includes:

[0019] A rotating base is used to fix the stator distributor;

[0020] The rotating connection component includes a connecting shaft and two bearings. Both the rotating seat and the base are provided with a mounting groove. The two mounting grooves are arranged opposite to each other and each is fixed with a bearing. The two ends of the connecting shaft along the axial direction are fixedly connected to the inner ring of one of the bearings. The peripheral wall of the connecting shaft is provided with a separating protrusion. The separating protrusion is located between the inner rings of the two bearings to separate the two bearings, so that a rotational gap is formed between the rotating seat and the base.

[0021] In one embodiment, the stator distributor and the rotating base are detachably connected.

[0022] In one embodiment, the rotating seat has a boss on the side opposite to the base, and the stator distributor includes a locking cavity, in which the boss is inserted to allow the stator distributor to be detachably mounted on the rotating seat.

[0023] In one embodiment, the engaging cavity and the receiving cavity are connected. The wall of the engaging cavity is provided with a engaging protrusion along the axial direction of the engaging cavity. The peripheral wall of the boss portion is provided with a engaging groove corresponding to the engaging protrusion. When the boss portion is inserted into the engaging cavity, the engaging protrusion is engaged in the engaging groove.

[0024] According to a third aspect, one embodiment provides a stator wire splitting test system, comprising:

[0025] The stator branching device described in any of the above embodiments;

[0026] A resistance measuring instrument is used to test the phase resistance of the stator after the stator is wired and connected based on the stator wire-splitting device, so as to test the correctness of the stator wiring.

[0027] And a mounting base for mounting the stator branching device and the resistance measuring instrument.

[0028] According to the stator distributor of the above embodiment, since the stator distributor is provided with a receiving cavity, a marking surface and a positioning structure, and the marking surface is provided with branch line markings, when in use, the stator iron core can be fixed in the receiving cavity with reference to the branch line markings. When the operator is doing branch line work, he can refer to the branch line markings to run and connect the wires without having to memorize them. This helps to reduce the difficulty for employees to get started and also helps to improve the operating efficiency of employees. Attached Figure Description

[0029] Figure 1 A schematic diagram of the structure of a stator splitter according to one embodiment;

[0030] Figure 2 This is a top view of a stator splitter according to one embodiment;

[0031] Figure 3 This is a schematic cross-sectional view of a stator distributor according to one embodiment.

[0032] Figure 4 This is a schematic diagram of the structure of a stator branching device according to one embodiment;

[0033] Figure 5 This is a schematic cross-sectional view of a stator branching device according to one embodiment.

[0034] Figure 6 This is an exploded structural diagram of a stator branching device according to one embodiment;

[0035] Figure 7 This is a schematic diagram of the stator distribution system according to one embodiment.

[0036] In the diagram, 100 is the stator distributor; 110 is the marking surface; 111 is the branch line marking; 120 is the receiving cavity; 121 is the positioning protrusion; 130 is the column part; 140 is the flange part; 150 is the support; 151 is the positioning notch; 160 is the engaging cavity; and 161 is the engaging protrusion.

[0037] 200. Base;

[0038] 300. Rotating assembly; 310. Rotating seat; 311. Boss portion; 3111. Snap-fit ​​groove; 320. Rotating connecting component; 321. Connecting shaft; 3211. Separating protrusion; 322. Bearing; 330. Mounting groove; 331. First part; 332. Second part; 340. Rotation clearance;

[0039] 400. Resistance measuring instrument;

[0040] 500. Mounting bracket;

[0041] 600. Stator core. Detailed Implementation

[0042] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0043] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0044] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0045] In this embodiment of the application, by setting branch line markings 111 on the stator brancher 100, operators do not need to memorize the line paths when branching and connecting, which helps to reduce the learning difficulty for employees and improve their operating efficiency and branching accuracy.

[0046] An embodiment of the stator splitter in this application:

[0047] In one embodiment, please refer to Figures 1 to 3 A stator branching device is provided. The stator branching device 100 has a marking surface 110, on which branching line markings 111 are provided. The branching line markings 111 can be understood as an identifier containing branching line information (such as a branching line diagram) and is used to indicate the branching of the lead wires of the stator core 600.

[0048] When in use, the stator core 600 can be fixed to the stator distributor 100, and the lead wires of the stator core 600 can be aligned with the connection points on the distributor line marking 111. Operators only need to follow the instructions of the distributor line marking 111 to perform the branching, without the need to memorize the branching line diagram. This makes it easy for employees to perform the branching operation and helps to improve the efficiency and accuracy of branching.

[0049] It is understandable that if the stator core 600 is simply placed on the stator distributor 100, the stator core 600 is prone to displacement during the wiring process, which may cause a deviation between the stator core 600 and the corresponding wiring mark 111, and may lead to wiring errors.

[0050] In one embodiment, please refer to Figures 1 to 3 The stator distributor 100 may have a receiving cavity 120 for accommodating the stator core 600. An installation opening may also be provided in conjunction with the receiving cavity 120 for at least a portion of the stator core 600 to be inserted into the receiving cavity 120, thereby providing an installation position for the stator core 600 and achieving initial positioning of the stator core 600. The branch line markings 111 may be arranged circumferentially along the receiving cavity 120.

[0051] The stator distributor 100 also includes a positioning structure for positioning the stator core 600 within the receiving cavity 120, so that the leads of the stator core 600 correspond to the connection points on the branch line marking 111. Using the positioning structure to further position the stator core 600 ensures that its position corresponds to the branch line marking 111, thus improving branching accuracy.

[0052] In one embodiment, please refer to Figure 1 and Figure 2 The stator distributor 100 may include a column portion 130, which has a receiving cavity 120 and a mounting port. The mounting port may be located at one end of the column portion 130 along the axial direction. The end face of the column portion 130 with the mounting port or the outer peripheral surface of the column portion 130 may be used as a marking surface 110. The marking surface 110 may be formed with branch line markings 111 by means of engraving, pasting stickers, etc.

[0053] To facilitate operator observation of the branch line marking 111, the end face of the column portion 130 with the mounting opening can be used as the marking surface 110. However, due to the influence of the mounting opening, the remaining area of ​​the end face of the column portion 130 around the mounting opening may be small, which is not conducive to the setting of the branch line marking 111. Therefore, in a further embodiment, please refer to... Figure 1 and Figure 3The stator distributor 100 may also be provided with a flange portion 140, which is provided on the column portion 130 with a corresponding mounting port, so that the surfaces of the flange portion 140 and the column portion 130 can jointly form a marking surface 110.

[0054] For example, the flange portion 140 may be provided at the end of the column portion 130 where the mounting port is provided. The flange portion 140 may be integrally provided with the column portion 130 or assembled separately. The end face of the flange portion 140 along the axial direction of the column portion 130 may be flush with the end face of the column portion 130 where the mounting port is provided, so as to jointly form the marking surface 110, so that the branch line marking 111 can be arranged around the mounting port.

[0055] It is understood that in other embodiments, only the surface of the flange portion 140 may be used as the marking surface 110, and the location of the flange portion 140 is not limited. In addition, besides being used to set the branch line marking 111, the flange portion 140 may also serve as a force-bearing part when moving the stator branch unit 100, so that employees can apply force during operation.

[0056] In one embodiment, please refer to Figure 1 and Figure 3 The positioning structure can be disposed in the receiving cavity 120; for example, the positioning structure includes at least one positioning protrusion 121 disposed on the cavity sidewall of the receiving cavity 120. The positioning protrusion 121 is disposed along the axial direction of the receiving cavity 120 and is used to engage with the groove on the outer surface of the stator core 600 to limit the circumferential displacement of the stator core 600 in the receiving cavity 120. The positioning protrusion 121 can be integrally formed with the column portion 130 to simplify the processing flow, or it can be assembled separately. The shape of the positioning protrusion 121 can be set as columnar, dot-shaped, or other shapes that match the groove on the outer surface of the stator core 600. The number can also be set to one or more, as long as it can achieve circumferential positioning of the stator core 600 along the receiving cavity 120.

[0057] In other embodiments, the positioning structure can also be disposed outside the receiving cavity 120; for example, it can be a positioning protrusion disposed on the marking surface 110 and protruding towards the mounting opening. The protruding end of the positioning protrusion can engage with a groove on the outer surface of the stator core 600 located outside the receiving cavity 120 to achieve circumferential positioning of the stator core 600 along the receiving cavity 120. In short, the arrangement and location of the positioning structure are not limited, as long as the positioning requirements are met.

[0058] Furthermore, since the stator core 600 comes in various specifications, in order to improve the applicability of the stator distributor 100, in one embodiment, please refer to... Figure 3The cavity 120 may be provided with a detachable support 150. The support 150 may be a pad. The support 150 is used to adjust the axial dimension of the cavity 120 so that different specifications of support 150 can be used to adapt to different specifications of stator core 600.

[0059] It is understood that if the cavity 120 is provided with a positioning protrusion 121 and the peripheral wall of the support member 150 is in contact with the inner wall of the cavity 120, then the peripheral wall of the support member 150 may be provided with a positioning notch 151 corresponding to the positioning protrusion 121 so that the support member 150 can be installed into the cavity 120.

[0060] An embodiment of the stator dividing device in this application:

[0061] In one embodiment, please refer to Figures 4 to 6 The stator branching device includes: a base 200, a rotating assembly 300, and a stator brancher 100 as described in any of the above embodiments. The rotating assembly 300 is disposed on the base 200, and the stator brancher 100 is rotatably disposed on the base 200 via the rotating assembly 300, so that the stator brancher 100 can rotate about its axis.

[0062] The base 200 and the rotating assembly 300 are configured to provide a base for the stator distributor 100 to rotate relative to the base 200, enabling the distributor to perform branching operations. For example, during use, the operator can rotate the stator distributor 100 so that the branching operation area is always in front of the operator, allowing for continuous branching operations without the operator needing to move. This improves operational efficiency and shortens the learning curve for employees.

[0063] It is understood that the specific structure of the rotating component 300 is not limited, as long as it can be used to set the stator distributor 100 and enable the stator distributor 100 to rotate relative to the base 200.

[0064] In one embodiment, please refer to Figure 5 and Figure 6 The rotating assembly 300 may include a rotating base 310 and a rotating connecting component 320. The rotating base 310 is used to fix the stator distributor 100. The rotating connecting component 320 is used to rotatably connect the rotating base 310 to the base 200.

[0065] The rotating connecting component 320 can be composed of a connecting shaft 321 and bearings 322. For example, the rotating connecting component 320 includes a connecting shaft 321 and two bearings 322. Both the rotating seat 310 and the base 200 are provided with a mounting groove 330, which are arranged opposite to each other and each has a bearing 322 fixed thereon. The fixing method of the bearings 322 is not limited; snap-fit, adhesive bonding, or other fixing methods are all acceptable. Each end of the connecting shaft 321 along the axial direction is fixedly connected to the inner ring of a bearing 322. A separating protrusion 3211 is provided on the peripheral wall of the connecting shaft 321. The separating protrusion 3211 is located between the inner rings of the two bearings 322 and can be annular or other shapes to separate the two bearings 322, creating a rotational gap 340 between the rotating seat 310 and the base 200. The cooperative arrangement of the connecting shaft 321 and the two bearings 322 helps to withstand larger loads and helps to maintain smooth rotation when machining heavy stators.

[0066] In one embodiment, please refer to Figure 5 The mounting groove 330 can be configured as a stepped groove, which includes a first portion 331 for fixing the bearing 322 and a second portion 332 disposed on the groove wall of the first portion 331. The second portion 332 can be used to accommodate the part of the connecting shaft 321 that passes through the bearing 322. It is understood that if the end of the connecting shaft 321 does not pass through the bearing 322, the second portion 332 can also be omitted.

[0067] In another embodiment, the rotating connection component 320 may also include a connecting shaft 321 and a bearing 322. One end of the connecting shaft 321 is fixedly connected to one of the base 200 and the rotating seat 310, and the other end is provided with the bearing 322. The outer ring of the bearing 322 is fixed to the other of the base 200 and the rotating seat 310. Alternatively, the rotating seat 310 may be rotatably connected to the base 200.

[0068] In another embodiment, the rotating connection component 320 can also be at least one ring of ball bearings movably embedded between the base 200 and the rotating seat 310, which can also realize the rotating connection function. In other embodiments, the base 200 can be further omitted, and the rotation requirement of the stator distributor 100 can be realized by setting rollers or ball bearings at the bottom of the stator distributor 100 (the end opposite to the mounting port).

[0069] Because the stator core 600 comes in various specifications, different stator distributors 100 need to be designed for different specifications of stator core 600, especially stator cores 600 with different radial specifications. To improve the versatility of the remaining parts of the stator distribution device, in one embodiment, the stator distributor 100 can be detachably connected to the rotating base 310, so that the stator distribution device can adapt to the distribution requirements of different stator specifications by replacing the stator distributor 100 with different specifications. It is understood that the detachable connection method between the stator distributor 100 and the rotating base 310 is not limited, as long as it meets the design and usage requirements.

[0070] In one embodiment, please refer to Figure 5 and Figure 6 A boss 311 can be provided on the side of the rotating seat 310 away from the base 200, and a locking cavity 160 can be provided on the stator distributor 100, so that the boss 311 can be inserted into the locking cavity 160, thereby realizing that the stator distributor 100 can be detachably installed on the rotating seat 310.

[0071] Furthermore, in a further embodiment, the cavity wall of the engaging cavity 160 may be provided with engaging protrusions 161 along the axial direction of the engaging cavity 160, and the peripheral wall of the boss portion 311 may be provided with engaging grooves 3111 corresponding to the engaging protrusions 161, so that when the boss portion 311 is inserted into the engaging cavity 160, the engaging protrusions 161 are engaged in the engaging grooves 3111, so as to further realize the circumferential positioning of the stator distributor 100 and restrict the rotation of the stator distributor 100 relative to the rotating seat 310.

[0072] To facilitate the manufacturing of the stator distributor 100, in some embodiments, the engaging cavity 160 may be configured to communicate with the receiving cavity 120. The engaging protrusion 161 and the positioning protrusion 121 in the receiving cavity 120 may also be integrally formed.

[0073] By providing a support member 150 in the stator distributor 100 and making the stator distributor 100 detachably mounted on the rotating seat 310, the branching requirements of stators with different radial and axial specifications can be met by replacing the support member 150 or the stator distributor 100, which helps to improve the versatility of the structure and reduce production costs.

[0074] An embodiment of the stator wire splitting test system in this application:

[0075] In one embodiment, please refer to Figure 7A stator wire splitting test system is provided, including a mounting base 500, a resistance meter 400, and the stator wire splitting device described in any of the above embodiments. The resistance meter 400 and the stator wire splitting device are mounted on the mounting base 500, and the bottom of the mounting base 500 may be provided with leveling support feet. The resistance meter 400 is used to test the phase resistance of the stator after the wires are split by the stator wire splitting device, in order to test the correctness of the stator wiring.

[0076] For example, the resistance measuring instrument 400 can be a commercially available or related three-phase resistance measuring instrument 400. After the stator is wired according to the "U, V, W" three-phase wiring sequence by the stator wire divider and the wires are connected in series, the three-phase resistance measuring instrument 400 can be used to test the "U, V, W" three-phase resistance of the stator. This helps to quickly determine whether the stator meets the technical parameter requirements, thereby determining whether the wire connection is correct. Furthermore, it can be combined with the wire markings on the stator wire divider 100 to form a double confirmation mechanism, which helps to prevent defective products from leaving the factory and ensure production quality.

[0077] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. A stator splitter, characterized in that, include: The cavity is used to house the stator core. And a marking surface, which is provided with branch line markings, the branch line markings being arranged circumferentially along the receiving cavity, for indicating the branch lines of the stator core leads; The stator distributor also includes a positioning structure for positioning the stator core within the receiving cavity so that the lead wires of the stator core correspond to the connection points on the branch line markings.

2. The stator splitter as described in claim 1, characterized in that, The stator splitter includes: The column section is provided with the receiving cavity, and the receiving cavity is provided with an installation port for the stator core to be installed; A flange portion is provided on the column portion corresponding to the mounting port, and the surfaces of the flange portion and the column portion together form the marking surface.

3. The stator splitter as described in claim 1, characterized in that, The positioning structure includes at least one positioning protrusion on the cavity sidewall of the receiving cavity. The positioning protrusion is arranged along the axial direction of the receiving cavity and is used to engage with a groove on the outer surface of the stator core to limit the circumferential displacement of the stator core in the receiving cavity.

4. The stator splitter as described in claim 3, characterized in that, The cavity is provided with a detachable support member. The peripheral wall of the support member is provided with a positioning notch corresponding to the positioning protrusion. The support member is used to adjust the axial dimension of the cavity to accommodate stator cores of different specifications.

5. A stator branching device, characterized in that, include: Base; A rotating assembly is mounted on the base; And the stator distributor according to any one of claims 1 to 4, which is rotatably mounted on the base by the rotating assembly so that the stator distributor can rotate about its axis.

6. The stator branching device as described in claim 5, characterized in that, The rotating assembly includes: A rotating base is used to fix the stator distributor; The rotating connection component includes a connecting shaft and two bearings. Both the rotating seat and the base are provided with a mounting groove. The two mounting grooves are arranged opposite to each other and each is fixed with a bearing. The two ends of the connecting shaft along the axial direction are fixedly connected to the inner ring of one of the bearings. The peripheral wall of the connecting shaft is provided with a separating protrusion. The separating protrusion is located between the inner rings of the two bearings to separate the two bearings, so that a rotational gap is formed between the rotating seat and the base.

7. The stator branching device as described in claim 6, characterized in that, The stator distributor and the rotating base are detachably connected.

8. The stator branching device as described in claim 7, characterized in that, The rotating seat has a boss on the side opposite to the base, and the stator distributor includes a locking cavity. The boss is inserted into the locking cavity so that the stator distributor can be detachably installed on the rotating seat.

9. The stator branching device as described in claim 8, characterized in that, The engaging cavity and the receiving cavity are connected. The wall of the engaging cavity is provided with a engaging protrusion along the axial direction of the engaging cavity. The peripheral wall of the boss is provided with a engaging groove corresponding to the engaging protrusion. When the boss is inserted into the engaging cavity, the engaging protrusion is engaged in the engaging groove.

10. A stator wire dividing test system, characterized in that, include: The stator branching device according to any one of claims 5 to 9; A resistance measuring instrument is used to test the phase resistance of the stator after the stator is wired and connected based on the stator wire-splitting device, so as to test the correctness of the stator wiring. And a mounting base for mounting the stator branching device and the resistance measuring instrument.

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