Compact three-phase single-layer collector ring

Abstract

The utility model provides a compact three-phase single-layer collector ring, and belongs to the technical field of motors. The problem of poor stability in the prior art is solved. The compact three-phase single-layer collector ring comprises a U-phase copper bar, a V-phase copper bar, a W-phase copper bar and an insulating body, the U-phase copper bar is in an arc shape and is provided with a protruding first welding terminal and a U-phase power terminal, and the V-phase copper bar is in an arc shape and is provided with a protruding second welding terminal and a V-phase power terminal. The W-phase copper bar is arc-shaped, a protruding welding terminal III and a W-phase power terminal are arranged on the W-phase copper bar, the U-phase copper bar, the V-phase copper bar and the W-phase copper bar are arranged on the same plane from inside to outside, and the inner ends of the U-phase copper bar and the V-phase copper bar are both located at the arc-shaped inner cavity of the W-phase copper bar. The compact three-phase single-layer collector ring is high in stability.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors and relates to a compact three-phase single-layer slip ring. Background Art

[0002] A three-phase single-layer slip ring is an electrical connection device used to transmit three-phase electrical energy. It is often used in equipment that requires rotational motion, such as wind turbines, cranes, rotating machinery, etc.

[0003] In the existing three-phase single-layer bus ring, the connection end of the lower part of each phase copper busbar needs to pass under the other phase copper busbar and extend to the outside. Therefore, it is not a true single layer. In the thickness direction, it still has the thickness of two layers of copper busbars. The bottom also needs to be made into an injection-molded convex bump, resulting in the bus ring thickness still being relatively thick.

[0004] In addition, the three-phase copper busbars are cut by stamping or laser cutting. Due to the shape limitations during cutting and layout, the material utilization rate of the strip is very low, resulting in excessively high costs. Summary of the Invention

[0005] The purpose of the utility model is to address the above-mentioned problems existing in the prior art and to provide a compact three-phase single-layer slip ring with a compact structure and relatively thin thickness.

[0006] The purpose of this utility model can be achieved through the following technical solutions:

[0007] A compact three-phase single-layer bus ring, comprising a U-phase copper bar, a V-phase copper bar, a W-phase copper bar and an insulating body, wherein the U-phase copper bar is arc-shaped and has a protruding welding terminal 1 and a U-phase power terminal on the U-phase copper bar, the V-phase copper bar is arc-shaped and has a protruding welding terminal 2 and a V-phase power terminal on the V-phase copper bar, the W-phase copper bar is arc-shaped and has a protruding welding terminal 3 and a W-phase power terminal on the W-phase copper bar, characterized in that the U-phase copper bar, the V-phase copper bar, the W-phase copper bar The bars are arranged in the same plane from the inside to the outside, the inner ends of the U-phase copper bar and the V-phase copper bar are both located in the arc-shaped inner cavity of the W-phase copper bar, the outer ends of the U-phase copper bar and the V-phase copper bar are both located in the arc-shaped notch of the W-phase copper bar, and the outer end of the V-phase copper bar covers the outer end of the U-phase copper bar. The insulating body is covered on the U-phase copper bar, the V-phase copper bar, and the W-phase copper bar. The above-mentioned welding terminal 1, U-phase power terminal, welding terminal 2, V-phase power terminal, welding terminal 3 and W-phase power terminal all extend out of the upper part of the insulating body.

[0008] In the above-mentioned compact three-phase single-layer slip ring, the arc center of the inner end of the U-phase copper bar coincides with the arc center of the inner end of the V-phase copper bar and the arc center of the W-phase copper bar.

[0009] In the above-mentioned compact three-phase single-layer slip ring, the outer end of the V-phase copper bar is arc-shaped and the arc section of the outer end of the V-phase copper bar fills the arc-shaped gap of the W-phase copper bar. The outer ends of the W-phase copper bar and the V-phase copper bar form a flat circular outer edge of the slip ring.

[0010] In the above-mentioned compact three-phase single-layer bus ring, the welding terminal 1 includes a sheet-shaped connecting piece 1 and a connecting piece 2. The connecting piece 1 protrudes from the outside of the U-phase copper busbar and the two are horizontally flush. The lower end of the connecting piece 2 is vertically fixed to the outer end of the connecting piece 1, and the upper end of the connecting piece 2 extends out of the insulating body.

[0011] In the above-mentioned compact three-phase single-layer slip ring, the number of the welding terminals 1 is several, and the several welding terminals 1 are arranged along the length direction of the U-phase copper bar. The outer ends of the connecting pieces 1 of some of the welding terminals 1 are adjacent to the inner side of the W-phase copper bar, and the outer ends of the connecting pieces 1 of another part of the welding terminals 1 are adjacent to the inner side of the V-phase copper bar.

[0012] In the above-mentioned compact three-phase single-layer bus ring, the welding terminal 2 includes a sheet-shaped connecting piece 3 and a connecting piece 4. The connecting piece 3 protrudes from the outside of the V-phase copper busbar and the two are horizontally flush. The lower end of the connecting piece 4 is vertically fixed to the outer end of the connecting piece 3, and the upper end of the connecting piece 4 extends out of the insulating body.

[0013] In the above-mentioned compact three-phase single-layer bus ring, the number of the welding terminals 2 is several, and the several welding terminals 2 are arranged along the length direction of the V-phase copper bar. The outer ends of the connecting pieces 3 of some welding terminals 2 are adjacent to the inner side of the W-phase copper bar, and the connecting pieces 3 of another part of the welding terminals 2 are adjacent to the outer side of the U-phase copper bar.

[0014] In the above-mentioned compact three-phase single-layer bus ring, the welding terminal three includes a sheet-shaped connecting piece five and a connecting piece six, the connecting piece five protrudes from the inner side of the W-phase copper busbar and the two are horizontally flush, the lower end of the connecting piece six is ​​vertically fixed to the outer end of the connecting piece five, and the upper end of the connecting piece six extends out of the insulating body.

[0015] In the above-mentioned compact three-phase single-layer bus ring, the number of the welding terminals three is several, and several welding terminals three are arranged along the length direction of the W-phase copper bar. The connecting pieces five of some welding terminals three are adjacent to the outer side of the U-phase copper bar, and the connecting pieces five of another part of the welding terminals three are adjacent to the outer side of the V-phase copper bar.

[0016] In the above-mentioned compact three-phase single-layer slip ring, the U-phase power terminal, the V-phase power terminal and the W-phase power terminal are arranged adjacent to each other.

[0017] Compared with the existing technology, this compact three-phase single-layer slip ring has U-phase copper bus, V-phase copper bus, and W-phase copper bus all on the same horizontal plane, and the above-mentioned multiple copper buses do not have an overlapping and staggered structure in the horizontal plane direction. This effectively reduces the thickness of the entire three-phase single-layer slip ring, and the cost of the entire slip ring is relatively low.

[0018] At the same time, the U-phase copper busbar, the V-phase copper busbar, and the W-phase copper busbar are stably wrapped in the insulation body, and the structure is relatively compact, which has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of this compact three-phase single-layer slip ring.

[0020] Figure 2 This is a three-dimensional structural diagram of the U-phase copper bar, V-phase copper bar, and W-phase copper bar in this compact three-phase single-layer bus ring.

[0021] Figure 3 This is a top view structural diagram of the U-phase copper bar, V-phase copper bar, and W-phase copper bar in this compact three-phase single-layer bus ring.

[0022] In the figure, 1. U-phase copper busbar; 1a. Welding terminal one; 1a1. Connecting piece one; 1a2. Connecting piece two; 1b. U-phase power terminal; 2. V-phase copper busbar; 2a. Welding terminal two; 2a1. Connecting piece three; 2a2. Connecting piece four; 2b. V-phase power terminal; 3. W-phase copper busbar; 3a. Welding terminal three; 3a1. Connecting piece five; 3a2. Connecting piece six; 3b. W-phase power terminal; 4. Insulating body. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] It should be noted that when a component is referred to as being "mounted on" another component, it may be mounted directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component. When a component is considered to be "fixed to" another component, it may be directly fixed to the other component or there may be a central component.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit this invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] like Figure 1 and Figure 2 and Figure 3 As shown, the compact three-phase single-layer bus ring includes a U-phase copper bar 1, a V-phase copper bar 2, a W-phase copper bar 3 and an insulating body 4. The U-phase copper bar 1 is arc-shaped and has a protruding welding terminal 1a and a U-phase power terminal 1b on the U-phase copper bar 1, the V-phase copper bar 2 is arc-shaped and has a protruding welding terminal 2a and a V-phase power terminal 2b on the V-phase copper bar 2, and the W-phase copper bar 3 is arc-shaped and has a protruding welding terminal 3a and a W-phase power terminal 3b on the W-phase copper bar 3.

[0027] The U-phase copper bar 1, V-phase copper bar 2, and W-phase copper bar 3 are arranged in the same plane from the inside to the outside. The inner ends of the U-phase copper bar 1 and the V-phase copper bar 2 are both located in the arc-shaped inner cavity of the W-phase copper bar 3. The outer ends of the U-phase copper bar 1 and the V-phase copper bar 2 are both located in the arc-shaped notch of the W-phase copper bar 3, and the outer end of the V-phase copper bar 2 covers the outer end of the U-phase copper bar 1. The insulating body 4 is covered on the U-phase copper bar 1, the V-phase copper bar 2, and the W-phase copper bar 3. The welding terminal 1a, the U-phase power terminal 1b, the welding terminal 2a, the V-phase power terminal 2b, the welding terminal 3a, and the W-phase power terminal 3b all extend out of the upper part of the insulating body 4.

[0028] The U-phase copper busbar 1, the V-phase copper busbar 2, and the W-phase copper busbar 3 are all on the same horizontal plane, which effectively reduces the thickness of the entire three-phase single-layer bus ring.

[0029] Of course, after the insulating body 4 covers the U-phase copper bar 1 , the V-phase copper bar 2 , and the W-phase copper bar 3 , the corresponding copper bars can be separated and made independent from each other.

[0030] The arc center of the inner end of the U-phase copper bar 1, the arc center of the inner end of the V-phase copper bar 2, and the arc center of the W-phase copper bar 3 coincide with each other.

[0031] The inner ends of the U-phase copper busbar 1 and the V-phase copper busbar 2 are both arc-shaped. The coincidence of the arc centers of the two can effectively improve the compactness of the structure, which is equivalent to two semicircles forming a complete circle.

[0032] The outer end of the V-phase copper bar 2 is arc-shaped and the arc section of the outer end of the V-phase copper bar 2 fills the arc-shaped gap of the W-phase copper bar 3. The outer ends of the W-phase copper bar 3 and the V-phase copper bar 2 form a flat circular outer edge of the bus ring.

[0033] The outer end of the V-phase copper bar 2 is arc-shaped, and the outer end of the V-phase copper bar 2 fills the arc-shaped gap of the W-phase copper bar 3, so that the outer edge of the bus ring is a complete circle.

[0034] The welding terminal 1a includes a sheet-shaped connecting piece 1a1 and a connecting piece 2a2. The connecting piece 1a1 protrudes from the outside of the U-phase copper busbar 1 and the two are horizontally flush. The lower end of the connecting piece 2a2 is vertically fixed to the outer end of the connecting piece 1a1, and the upper end of the connecting piece 2a2 extends out of the insulating body 4.

[0035] There are several welding terminals 1a, which are arranged along the length direction of the U-phase copper bar 1. The outer ends of the connecting pieces 1a1 of some welding terminals 1a are adjacent to the inner side of the W-phase copper bar 3, and the outer ends of the connecting pieces 1a1 of another part of the welding terminals 1a are adjacent to the inner side of the V-phase copper bar 2.

[0036] The welding terminal 2a includes a sheet-shaped connecting piece 3 2a1 and a connecting piece 4 2a2. The connecting piece 3 2a1 protrudes from the outside of the V-phase copper busbar 2 and the two are horizontally flush. The lower end of the connecting piece 4 2a2 is vertically fixed to the outer end of the connecting piece 3 2a1, and the upper end of the connecting piece 4 2a2 extends out of the insulating body 4.

[0037] There are several welding terminals 2a, and the several welding terminals 2a are arranged along the length direction of the V-phase copper bar 2. The outer ends of the connecting pieces 3 2a1 of some welding terminals 2a are adjacent to the inner side of the W-phase copper bar 3, and the connecting pieces 3 2a1 of another part of the welding terminals 2a are adjacent to the outer side of the U-phase copper bar 1.

[0038] The welding terminal three 3a includes a sheet-shaped connecting piece five 3a1 and a connecting piece six 3a2. The connecting piece five 3a1 protrudes from the inner side of the W-phase copper busbar 3b and the two are horizontally flush. The lower end of the connecting piece six 3a2 is vertically fixed to the outer end of the connecting piece five 3a1, and the upper end of the connecting piece six 3a2 extends out of the insulating body 4.

[0039] There are several welding terminals 3a, which are arranged along the length direction of the W-phase copper bar 3. The connecting pieces 5 3a1 of some welding terminals 3a are adjacent to the outer side of the U-phase copper bar 1, and the connecting pieces 5 3a1 of another part of the welding terminals 3a are adjacent to the outer side of the V-phase copper bar 2.

[0040] Since there is a gap between the inner end of the U-phase copper bar 1 and the W-phase copper bar 3, there is a gap between the inner end of the V-phase copper bar 2 and the W-phase copper bar 3, and there is a gap between the outer end of the U-phase copper bar 1 and the outer end of the V-phase copper bar 2, the above-mentioned welding terminals are respectively located at corresponding gap positions, which not only does not take up too much space, but also increases the connection area with the insulating body 4, ultimately improving the stability of the entire slip ring.

[0041] The U-phase power terminal 1 b , the V-phase power terminal 2 b and the W-phase power terminal 3 b are arranged adjacent to each other.

[0042] Such a structure facilitates the convenient connection of the power terminals on the slip ring to the corresponding connection points.

[0043] In this compact three-phase single-layer slip ring, since the U-phase copper busbar, V-phase copper busbar, and W-phase copper busbar are all on the same horizontal plane, and the above-mentioned multiple copper buses do not have an overlapping and staggered structure in the horizontal plane direction, this effectively reduces the thickness of the entire three-phase single-layer slip ring, and the cost of the entire slip ring is relatively low.

[0044] At the same time, the U-phase copper busbar, the V-phase copper busbar, and the W-phase copper busbar are stably wrapped in the insulation body, and the structure is relatively compact, which has high practical value.

[0045] In this embodiment, a lead hole adjacent to the power terminal is provided on the insulating body 4 , and a wire can be conveniently passed through the lead hole on the slip ring.

[0046] The various technical features of the above-described embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments fall within the scope of protection claimed by the present invention.

Claims

1. A compact three-phase single-layer bus ring, comprising a U-phase copper bar, a V-phase copper bar, a W-phase copper bar, and an insulating body, wherein the U-phase copper bar is arc-shaped and has a protruding welding terminal 1 and a U-phase power terminal on the U-phase copper bar, the V-phase copper bar is arc-shaped and has a protruding welding terminal 2 and a V-phase power terminal on the V-phase copper bar, and the W-phase copper bar is arc-shaped and has a protruding welding terminal 3 and a W-phase power terminal on the W-phase copper bar, characterized in that: The U-phase copper bar, V-phase copper bar, and W-phase copper bar are arranged in the same plane from the inside to the outside. The inner ends of the U-phase copper bar and the V-phase copper bar are both located in the arc-shaped inner cavity of the W-phase copper bar. The outer ends of the U-phase copper bar and the V-phase copper bar are both located in the arc-shaped notch of the W-phase copper bar, and the outer end of the V-phase copper bar covers the outer end of the U-phase copper bar. The insulating body is covered on the U-phase copper bar, the V-phase copper bar, and the W-phase copper bar. The welding terminal 1, U-phase power terminal, welding terminal 2, V-phase power terminal, welding terminal 3, and W-phase power terminal all extend out of the upper part of the insulating body.

2. The compact three-phase single-layer slip ring according to claim 1, characterized in that: The arc center of the inner end of the U-phase copper bar coincides with the arc center of the inner end of the V-phase copper bar and the arc center of the W-phase copper bar.

3. The compact three-phase single-layer slip ring according to claim 2, characterized in that: The outer end of the V-phase copper bar is arc-shaped and the arc section of the outer end of the V-phase copper bar fills the arc-shaped gap of the W-phase copper bar. The outer ends of the W-phase copper bar and the V-phase copper bar form a flat circular outer edge of the bus ring.

4. The compact three-phase single-layer slip ring according to claim 3, characterized in that: The welding terminal 1 includes a sheet-shaped connecting piece 1 and a connecting piece 2. The connecting piece 1 protrudes from the outside of the U-phase copper bar and the two are horizontally flush. The lower end of the connecting piece 2 is vertically fixed to the outer end of the connecting piece 1, and the upper end of the connecting piece 2 extends out of the insulating body.

5. The compact three-phase single-layer slip ring according to claim 4, characterized in that: There are several welding terminals one, and several welding terminals one are arranged along the length direction of the U-phase copper bar. The outer ends of the connecting pieces one of some welding terminals one are adjacent to the inner side of the W-phase copper bar, and the outer ends of the connecting pieces one of another part of the welding terminals one are adjacent to the inner side of the V-phase copper bar.

6. The compact three-phase single-layer slip ring according to claim 5, characterized in that: The welding terminal 2 includes a sheet-shaped connecting piece 3 and a connecting piece 4. The connecting piece 3 protrudes from the outside of the V-phase copper bar and the two are horizontally flush. The lower end of the connecting piece 4 is vertically fixed to the outer end of the connecting piece 3, and the upper end of the connecting piece 4 extends out of the insulating body.

7. The compact three-phase single-layer slip ring according to claim 6, characterized in that: There are several welding terminals 2, and several welding terminals 2 are arranged along the length direction of the V-phase copper bar. The outer ends of the connecting pieces 3 of some welding terminals 2 are adjacent to the inner side of the W-phase copper bar, and the connecting pieces 3 of another part of the welding terminals 2 are adjacent to the outer side of the U-phase copper bar.

8. The compact three-phase single-layer slip ring according to claim 7, characterized in that: The welding terminal three includes a sheet-shaped connecting piece five and a connecting piece six. The connecting piece five protrudes from the inner side of the W-phase copper bar and the two are horizontally flush. The lower end of the connecting piece six is ​​vertically fixed to the outer end of the connecting piece five, and the upper end of the connecting piece six extends out of the insulating body.

9. The compact three-phase single-layer slip ring according to claim 8, characterized in that: There are several welding terminals three, and several welding terminals three are arranged along the length direction of the W-phase copper bar. The connecting pieces five of some welding terminals three are adjacent to the outer side of the U-phase copper bar, and the connecting pieces five of another part of welding terminals three are adjacent to the outer side of the V-phase copper bar.

10. The compact three-phase single-layer slip ring according to claim 9, characterized in that: The U-phase power terminal, the V-phase power terminal and the W-phase power terminal are arranged adjacent to each other.

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