Stator connecting ring convenient to assemble
By integrating conductive components and conductive contacts into a single structure and designing insulating separators, the problems of low assembly efficiency and messy wiring in existing three-phase stator connection rings are solved, enabling a fast and simple assembly process.
Patent Information
- Application Number
- CN202520367267.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-04
AI Technical Summary
The existing three-phase stator connecting rings have low assembly efficiency and messy wiring, which increases assembly difficulty and time cost.
The structure adopts an integral molding of conductive components and conductive contacts, combined with insulating separators. By vertically stacking conductive components and separating them with insulating separators, the wire crimping time is eliminated, enabling rapid positioning and installation.
This design achieves a simple structure and convenient assembly of the stator connecting ring, improving assembly speed, avoiding messy wiring, and increasing assembly efficiency.
Smart Images
Figure CN223899042U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor parts manufacturing, and in particular to a stator connecting ring that is easy to assemble. Background Technology
[0002] In the field of new energy, such as the drive system of electric vehicles, the three-phase stator coupling ring plays a crucial role. It is responsible for transmitting the current generated by the inverter to the stator winding, thereby driving the motor to operate.
[0003] The existing three-phase stator connecting ring structure reference Figure 1 As shown, the device includes a housing with an interface for connecting to the inverter. The interface is a three-phase output terminal, and there are four sets of connecting copper plates inside the interface, which are respectively connected to the U-phase line, V-phase line, W-phase line and N-phase line inside the housing. The U-phase line, V-phase line and W-phase line represent the live wires, each including 8 tuning fork contacts and 9 wires. Each tuning fork contact is crimped with 2 wires. The N-phase line represents the neutral wire, including 24 tuning fork contacts and 25 wires. Each tuning fork contact is crimped with 2 wires. In actual production, the number of tuning fork contacts will be adjusted according to the magnitude of the current.
[0004] In the actual assembly process, the three-phase stator connecting ring described above requires manual alignment and crimping of each tuning fork contact with two wires in sequence. This assembly method is not only inefficient, but also leads to messy wiring inside the housing of the connecting ring due to the need to build multiple sets of crimped wires inside, which increases the assembly difficulty and time cost. Therefore, developing a three-phase stator connecting ring with a simple structure and convenient assembly is of great practical significance. Utility Model Content
[0005] This invention addresses the shortcomings of existing three-phase stator connecting rings, such as high assembly difficulty and messy wiring, by providing a stator connecting ring that is easy to assemble, allows for neat and quick assembly.
[0006] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:
[0007] A stator connection ring that is easy to assemble includes a housing and a connection structure mounted on the housing for connecting an inverter and a winding coil. The connection structure includes four conductive components stacked longitudinally inside the housing and three insulating spacers located between two adjacent conductive components. Each conductive component includes a conductive element, a plurality of conductive contacts integrally formed on the conductive element for electrical connection with the winding coil, and conductive contact pieces connected to the conductive element for connection with the inverter.
[0008] Using the above scheme, the four sets of conductive components represent the U-phase line, V-phase line, W-phase line and N-phase line in sequence. Each phase line is insulated with insulating separators. Since the conductive components and conductive contacts are integrally formed, a lot of wire crimping time can be saved. During assembly, it is only necessary to stack the conductive components corresponding to the phase lines vertically in the housing and separate them with insulating separators. Therefore, the stator connecting ring has the advantages of simple structure and convenient assembly.
[0009] Preferably, the housing includes an upper shell and a lower shell that are interlocked with each other. Both the upper shell and the lower shell include an annular half-shell and an interface half-shell integrally distributed on the side wall of the annular half-shell. The conductive element is built into the annular half-shell of the lower shell, and the conductive contacts are distributed in the interface half-shell of the lower shell and are spaced apart around the arc of the annular half-shell. The conductive contacts are perpendicular to the conductive element and extend out to the outside of the upper shell.
[0010] Preferably, the electrical component is ring-shaped, and the conductive contact piece is integrally protruded or welded onto the conductive component.
[0011] Preferably, the conductive element includes two arc-shaped segments built into the annular half-shell of the lower housing and an extension segment integrally extending from one end of each arc-shaped segment near the interface half-shell into the interface half-shell, and the conductive contact is integrally formed by connecting the tail ends of the extension segments or welded between adjacent extension segments.
[0012] Preferably, the inner ring wall of the lower shell is provided with several positioning grooves that can independently position a conductive contact on the circumferentially spaced, and the upper shell is provided with several clearance holes that allow the corresponding conductive contacts to pass through.
[0013] By adopting the above scheme and setup, rapid positioning and installation of each phase line can be achieved, thus improving assembly speed.
[0014] Preferably, the width and depth of the positioning groove corresponding to each group of conductive components are different.
[0015] By adopting the above solution, the time for positioning and placing each set of conductive components can be further saved, thereby increasing the assembly speed.
[0016] Preferably, the insulating separator is annular, and a limiting member is provided inside the annular half-shell of the lower housing to restrict the radial displacement of the insulating separator.
[0017] Preferably, the housing is filled with liquid potting compound.
[0018] By adopting the above solution, the insulation performance between phase lines can be improved and the probability of creepage can be reduced.
[0019] Preferably, the conductive components are made of copper; the insulating separators are made of PET.
[0020] This utility model has significant technical effects due to the adoption of the above technical solutions: the four sets of conductive components represent the U-phase line, V-phase line, W-phase line and N-phase line in sequence, and each phase line is insulated with insulating separators. Since the conductive components and conductive contacts are integrally formed, a large amount of wire crimping time can be saved. During assembly, it is only necessary to stack the conductive components corresponding to the above phase lines longitudinally in the housing and separate them with insulating separators. Therefore, the stator connecting ring has the advantages of simple structure and convenient assembly. Attached Figure Description
[0021] Figure 1 This is an isometric view of the existing three-phase stator connecting ring with the upper shell removed;
[0022] Figure 2 This is an isometric view of a stator connecting ring that is easy to assemble, as shown in Example 1;
[0023] Figure 3 This is an exploded view of a stator connecting ring that is easy to assemble, as shown in Embodiment 1;
[0024] Figure 4 yes Figure 3 A magnified view of A;
[0025] Figure 5 This is an isometric view of the U-phase line in Example 1;
[0026] Figure 6 This is an isometric view of the U-phase line in Example 2.
[0027] The parts referred to by the numbers in the above figures are as follows: 1. Housing; 101. Upper housing; 1011. Clearance hole; 102. Lower housing; 1021. Positioning groove; 1022. Limiting component; 2. Conductive component; 201. Conductive contact; 202. Conductive component; 2021. Arc segment; 2022. Extension segment; 203. Conductive contact piece; 3. Insulating separator. Detailed Implementation
[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.
[0029] Example 1
[0030] A stator connecting ring that is easy to assemble, see reference Figures 2 to 5 As shown, it includes a housing 1 made of plastic and a connection structure mounted on the housing 1 for connecting the inverter and the winding coil. The housing 1 includes an upper shell 101 and a lower shell 102 that are interlocked. Both the upper shell 101 and the lower shell 102 include annular half-shells and interface half-shells integrally distributed on the side walls of the annular half-shells. The lower end of the upper shell 101 has an "L"-shaped buckle extending downward, and the outer ring wall of the lower shell 102 is provided with a buckle block that can be snapped into place.
[0031] The connection structure includes four conductive components 2 stacked longitudinally inside the housing 1 and three insulating spacers 3 located between adjacent conductive components 2. The insulating spacers 3 are made of PET and are annular. A limiting member 1022 is provided in the annular half-shell of the lower housing 102 to limit the radial displacement of the insulating spacers 3. The conductive components 2 include conductive elements 202, a plurality of conductive contacts 201 integrally formed on the conductive elements 202 for electrical connection with the winding coil, and conductive contact pieces 203 connected to the conductive elements 202 and for connection with the inverter. The conductive elements 202 are made entirely of copper and include two arc-shaped segments 2021 built into the annular half-shell of the lower housing 102 and integrally extending from one end of each arc-shaped segment 2021 near the interface half-shell into the interface half-shell. The extension section 2022 has conductive contact pieces 203 located inside the interface half-shell of the lower shell 102 and welded between adjacent extension sections 2022. Four sets of conductive contact pieces 203 are built into the interface half-shell of the lower shell 102 and are arranged at intervals around the arc of the annular half-shell of the lower shell 102. The conductive contact 201 is a tuning fork contact. The conductive contact 201 is perpendicular to the conductive element 202 and extends out to the outside of the upper shell 101. The upper shell 101 has clearance holes 1011 for all conductive contacts 201 to pass through in sequence. The four sets of conductive contact pieces 203 represent the U-phase line, V-phase line, W-phase line and N-phase line from top to bottom. The conductive elements 202 of the U-phase line, V-phase line and W-phase line each have 6 conductive contacts 201, and the conductive element 202 of the N-phase line has 18 conductive contacts 201.
[0032] The four sets of conductive components 2 have a total of 36 conductive contacts 201, which are evenly distributed around the annular half-shell of the lower shell 102. On the inner ring wall of the lower shell 102, there are several positioning grooves 1021 that can independently position a conductive contact 201. The width and depth of the positioning grooves 1021 corresponding to each set of conductive components 2 are different.
[0033] The housing 1 is filled with liquid potting compound, which is A / B epoxy resin, to meet the creepage requirements.
[0034] In this solution, a copper conductive component 202 is used instead of a wire and is integrally formed with the conductive contact 201, which saves a lot of time required for crimping the wires and conductive contacts 201. During assembly, only one layer of conductive component 2 and one layer of insulating separator 3 are needed. This not only saves the time required for wiring but also avoids the messy wiring inside the housing 1. Therefore, the stator connecting ring structure of this solution is simple and very convenient to assemble.
[0035] Example 2
[0036] The difference between this embodiment and Embodiment 1 is that, referring to... Figure 6As shown, the conductive element 202 can be configured in different ways. The conductive element 202 can be configured as an integral ring, and the conductive contact 203 can be integrally generated on the conductive element 202 or welded on the conductive element 202.
[0037] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A stator connecting ring that is easy to assemble, comprising a housing (1) and a connecting structure mounted on the housing (1) for connecting an inverter and a winding coil, characterized in that: The connection structure includes four conductive components (2) stacked longitudinally inside the housing (1) and three insulating spacers (3) located between two adjacent conductive components (2). The conductive component (2) includes a conductive element (202), a plurality of conductive contacts (201) integrally formed on the conductive element (202) for electrical connection with the winding coil, and conductive contact pieces (203) connected to the conductive element (202) and for connection with the inverter.
2. The stator connecting ring for easy assembly according to claim 1, characterized in that: The housing (1) includes an upper shell (101) and a lower shell (102) that are interlocked. Both the upper shell (101) and the lower shell (102) include an annular half-shell and an interface half-shell integrally distributed on the side wall of the annular half-shell. The conductive element (202) is built into the annular half-shell of the lower shell (102). The conductive contact (203) is distributed in the interface half-shell of the lower shell (102) and is distributed at intervals around the arc of the annular half-shell. The conductive contact (201) is perpendicular to the conductive element (202) and extends out to the outside of the upper shell (101).
3. The stator connecting ring for easy assembly according to claim 2, characterized in that: The conductive component (202) is ring-shaped, and the conductive contact (203) is integrally protruded or welded onto the conductive component (202).
4. The stator connecting ring for easy assembly according to claim 2, characterized in that: The conductive element (202) includes two arc-shaped segments (2021) built into the annular half-shell of the lower shell (102) and an extension segment (2022) integrally extending from one end of each arc-shaped segment (2021) near the interface half-shell into the interface half-shell. The conductive contact (203) is integrally formed by connecting the tail end of the extension segment (2022) or welded between adjacent extension segments (2022).
5. A stator connecting ring for easy assembly according to any one of claims 2 to 4, characterized in that: The inner ring wall of the lower shell (102) is provided with several positioning grooves (1021) that can independently position a conductive contact (201) on the circumferentially spaced, and the upper shell (101) is provided with several clearance holes (1011) through which the corresponding conductive contact (201) can pass.
6. A stator connecting ring for easy assembly according to claim 5, characterized in that: The width and depth of the positioning groove (1021) corresponding to each group of conductive components (2) are different.
7. A stator connecting ring for easy assembly according to claim 5, characterized in that: The insulating separator (3) is annular, and a limiting member (1022) is provided inside the annular half-shell of the lower shell (102) to limit the radial displacement of the insulating separator (3).
8. A stator connecting ring for easy assembly according to claim 1, characterized in that: The housing (1) is filled with liquid potting compound.
9. A stator connecting ring for easy assembly according to claim 1, characterized in that: The conductive component (2) is made of copper; the insulating separator (3) is made of PET.