Phase insulation bushing, rectifier bridge and water-cooled generator

Abstract

A phase insulation bushing, a rectifier bridge and a water-cooled generator relate to the technical field of automobile generators, the phase insulation bushing comprises a bushing body with an arc-shaped structure, and the inner side of the bushing body is provided with a plurality of insulation positioning units; the insulation positioning unit comprises a threading positioning part and a screw flat gasket part, and a threading through hole is formed in the threading positioning part; and a screw through hole is formed in the screw flat gasket part. The rectifier bridge comprises a lead bracket, a positive plate and a negative plate, and a phase insulation bushing is arranged between the positive plate and the negative plate; the mounting surface of the positive plate and the mounting surface of the negative plate are positioned on the same plane, and an end cover bushing is mounted on the positive plate. The phase insulation lining can position the stator phase line, so that the threading accuracy is improved, the welding efficiency is improved, and time and labor are saved; meanwhile, the anti-vibration strength of the rectifier bridge is improved, and the application requirement of the water-cooled generator is met. Meanwhile, the utility model further discloses a water-cooled generator.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile generator, especially relates to a phase insulation bushing, rectifier bridge and water -cooled generator. BACKGROUND

[0002] The prior art, due to the influence of the deformation of the stator phase wire caused by the bending or being touched of the material of the stator phase wire, the accuracy of the end of the stator phase wire inserted into the rectifier bridge tab is low before welding, and the end of the stator phase wire is easy to be inclined, so the operator needs to manually adjust the stator phase wire to make the end of the stator phase wire located in the rectifier bridge tab, and then pre-clamp the rectifier bridge tab and the stator phase wire, and then weld them together.

[0003] Therefore, during the welding process, the operator needs to check whether each stator phase wire is correspondingly arranged in the rectifier bridge tab, and for the stator phase wire with inclination, it needs to be adjusted separately to correspondingly arrange it in the rectifier bridge tab, thereby reducing the production efficiency and affecting the production rhythm; moreover, the manual adjustment has errors, resulting in non-uniform welding position, and when the generator is in a severe vibration place, the welding position of the two is easy to be disconnected, affecting the normal use.

[0004] Meanwhile, in the existing rectifier bridge, there is a distance between the positive plate mounting surface and the negative plate mounting surface, so that the relationship between the two is in a raised state, therefore, the existing rectifier bridge is only suitable for air-cooled generators and cannot be applied to water-cooled generators. SUMMARY

[0005] Therefore, the utility model wants to solve the technical problem: provide a phase insulation bushing, rectifier bridge and water-cooled generator, the phase insulation bushing can position the stator phase wire, improve the threading accuracy, improve the welding efficiency, save time and effort, and improve the vibration resistance of the rectifier bridge, and meet the application requirements of the water-cooled generator.

[0006] To solve the above technical problems, the technical scheme of the utility model is:

[0007] A phase insulation bushing, comprising a bushing body of arc structure, a plurality of spaced insulation positioning units are arranged on the inner side of the bushing body, and the side of the bushing body towards the center of the circle is defined as the inner side thereof.

[0008] The insulation positioning unit comprises a threading positioning part and a screw flat pad part, a threading through hole for threading and positioning the stator phase wire is formed in the threading positioning part, and the screw flat pad part is arranged close to the center of the bushing body, and a screw through hole is formed in the screw flat pad part.

[0009] Preferably, the wire positioning part comprises a tab supporting platform arranged outside the wire through hole.

[0010] In the axial direction of the bushing body, the thickness of the screw flat pad is less than the thickness of the tab supporting platform.

[0011] Preferably, the wire positioning part comprises a wire guide protrusion arranged outside the wire through hole, the wire guide protrusion being arranged on the side away from the tab supporting platform.

[0012] Preferably, the wire guide protrusion has a U-shaped cross section, and a guide inclined surface is arranged on the wire guide protrusion and communicates with the wire through hole.

[0013] Preferably, an annular boss is arranged outside the screw through hole.

[0014] Preferably, a profiled rib is arranged on the bushing body, and in the radial direction of the bushing body, the profiled rib is arranged outside the wire positioning part.

[0015] A rectifier bridge comprises a lead frame, a positive plate and a negative plate mounted on the lead frame, and the above-mentioned phase insulation bushing is mounted between the positive plate and the negative plate; the mounting surface of the positive plate and the mounting surface of the negative plate are in the same plane, and an end cover bushing is mounted on the positive plate.

[0016] Preferably, a plurality of rectifier bridge tabs are arranged on the outer edge of the lead frame, and the rectifier bridge tabs correspond one-to-one to the wire positioning parts.

[0017] The rectifier bridge tab comprises two welding plates, and the stator phase line passing through the wire through hole extends into the two welding plates, and the two welding plates are welded together to form an integral whole with the stator phase line.

[0018] Preferably, a plurality of holding grooves are arranged on the end cover bushing, and the plurality of holding grooves are equidistantly arranged around the axis of the end cover bushing.

[0019] A water-cooled generator is provided with the above-mentioned rectifier bridge.

[0020] After the above technical solutions are adopted, the advantageous effects of the present application are as follows:

[0021] The application discloses a phase insulation bushing, a rectifier bridge and a water-cooled generator, wherein the phase insulation bushing comprises a bushing body in an arc structure, and a plurality of spaced insulation positioning units are arranged on the inner side of the bushing body; the side of the bushing body towards the center of a circle is defined as the inner side thereof; the insulation positioning unit comprises a threading positioning portion and a screw flat pad portion, the threading positioning portion is provided with a threading through hole for threading and positioning a stator phase wire; the screw flat pad portion is arranged close to the center of the bushing body, and the screw flat pad portion is provided with a screw through hole.

[0022] The rectifier bridge comprises a lead support, a positive plate and a negative plate mounted on the lead support, and a phase insulation bushing mounted between the positive plate and the negative plate; the mounting surface of the positive plate and the mounting surface of the negative plate are in the same plane, and an end cover bushing is mounted on the positive plate. By mounting the phase insulation bushing between the positive plate and the negative plate, the stator phase wire can be positioned and the traditional bushing can be replaced, the structure is compact, and the installation efficiency is improved; at the same time, the mounting surface of the positive plate and the mounting surface of the negative plate are in the same plane, meeting the application requirements of mounting the rectifier bridge on the water-cooled generator, and being suitable for the water-cooled generator.

[0023] In summary, the phase insulation bushing, the rectifier bridge and the water-cooled generator disclosed by the application can position the stator phase wire, improve the threading accuracy, improve the welding efficiency, save time and effort, improve the vibration resistance of the rectifier bridge, and meet the application requirements of the water-cooled generator. BRIEF DESCRIPTION OF DRAWINGS

[0024] The application will be further described below in combination with the drawings and embodiments.

[0025] Figure 1 is a structural schematic view of the phase insulation bushing of the application;

[0026] Figure 2 is a structural schematic view of the rectifier bridge of the application;

[0027] Figure 3 is Figure 2 an enlarged view of A part of

[0028] Figure 4 is Figure 2 a structural schematic view in another direction;

[0029] Figure 5 is Figure 4 a B part enlarged view of the figure;

[0030] Figure 6 is the structure schematic view of the rectifier bridge installed on the water-cooled generator of the utility model;

[0031] Figure 7 is the structure schematic view of the traditional rectifier bridge;

[0032] Figure 8 is Figure 7 the structure schematic view of another direction;

[0033] in the figure:

[0034] 1, bushing body;

[0035] 2, insulation positioning unit; 21, threading positioning part; 211, threading through hole; 212, tab support table; 213, threading guide protrusion; 214, guide inclined surface; 22, screw flat pad part; 221, screw through hole; 222, annular boss;

[0036] 3, shape following rib;

[0037] 4, lead support; 41, rectifier bridge tab;

[0038] 5, positive plate;

[0039] 6, negative plate;

[0040] 7, end cover bushing; 71, holding groove;

[0041] 8, stator phase line;

[0042] 91, traditional negative plate; 92, traditional positive plate. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below by combining with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0044] In the description of the present specification, the meaning of words such as "several" is one or more. The meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited. The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.

[0045] In the description of the present application, unless otherwise expressly defined, the words "arrange", "install", "connect" and the like should be broadly understood, and the skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0046] Embodiment one

[0047] As Figures 1 to 8 The utility model discloses relative insulation bushing, including the bushing body 1 of arc structure, the inside of bushing body 1 is provided with a plurality of interval arrangement's insulation positioning unit 2, define the inside of bushing body 1 towards the side of center as its, wherein, insulation positioning unit 2 includes threading positioning part 21 and screw flat pad part 22, threading positioning part 21 is opened with the threading through -hole 211 for threading and positioning stator phase wire 8, screw flat pad part 22 is close to the center of bushing body 1 and is arranged, and screw flat pad part 22 is opened with screw through -hole 221.

[0048] In the present application, by being provided with threading positioning part 21 and screw flat pad part 22, threading positioning part 21 can position the outgoing line end of stator phase wire 8 so that it does not deviate, facilitating corresponding with rectifier bridge lead 41 on rectifier bridge, improving welding efficiency, screw flat pad part 22 can replace the assembly mode that traditional insulation bushing is installed between traditional negative plate 91 and traditional positive plate 92 in traditional mode, reduce the quantity of insulation bushing, compact structure, and the integrated design can ensure that each connection is provided with screw flat pad part 22, enhance the installation stability and installation strength between the two, improve the use effect and installation efficiency.

[0049] Preferably, threading positioning part 21 includes a lead piece support table 212 disposed outside the threading through-hole 211; along the axial direction of the bushing body 1, the thickness of the screw flat pad part 22 is less than the thickness of the lead piece support table 212.

[0050] Threading positioning part 21 includes a threading guide protrusion 213 disposed outside the threading through-hole 211, and the threading guide protrusion 213 is disposed on the side away from the lead piece support table 212. Preferably, the cross-sectional shape of the threading guide protrusion 213 is U-shaped, and the threading guide protrusion 213 is provided with a guide inclined surface 214 in communication with the threading through-hole 211. The threading guide protrusion 213 can guide the stator phase wire 8 during the process of passing through the threading through-hole 211, and the guide inclined surface 214 is provided to facilitate the passing through of the threading through-hole 211. The U-shaped threading guide protrusion 213 is convenient to be clamped in the notch of the negative plate 6 and is convenient to install.

[0051] An annular boss 222 is disposed outside the screw through-hole 221 to enhance the strength of the screw through-hole 221.

[0052] The bushing body 1 is provided with a rib 3; along the radial direction of the bushing body 1, the rib 3 is arranged outside the wire positioning part 21. The arrangement of the rib 3 enhances the strength of the bushing body 1 and prolongs the service life thereof.

[0053] Embodiment two

[0054] As Figures 1 to 6 , Figure 8 As shown in the drawings, the application discloses a rectifier bridge, which comprises a lead support 4, a positive plate 5 and a negative plate 6 mounted on the lead support 4, and a phase insulation bushing arranged between the positive plate 5 and the negative plate 6; the mounting surface of the positive plate 5 and the mounting surface of the negative plate 6 are in the same plane, and an end cover bushing 7 is mounted on the positive plate 5.

[0055] By arranging the phase insulation bushing between the positive plate 5 and the negative plate 6, the stator phase line 8 can be positioned and the traditional insulation bushing can be replaced, the structure is compact, the installation efficiency is improved, the anti-vibration capacity of the rectifier bridge is enhanced, and the anti-vibration test of the customer is met; meanwhile, the lead support 4, the positive plate 5 and the negative plate 6 are assembled together by means of a plurality of screws passing through corresponding screw holes of the lead support 4; when the rectifier bridge is mounted on the water-cooled generator, because the mounting surface of the positive plate 5 and the mounting surface of the negative plate 6 are in the same plane, the positive plate 5 and the negative plate 6 can be mounted on the end cover machining surface, the application requirement of mounting the rectifier bridge on the water-cooled generator is met, and the rectifier bridge is suitable for the water-cooled generator; preferably, the screws passing through the lead support 4 are four, and one screw is arranged at the end of the positive plate 5 for connection and one screw is arranged at the end of the negative plate 6 for connection, the two screws are arranged on the ends away from each other, so that the anti-vibration capacity of the rectifier bridge is also enhanced. The end cover bushing 7 is arranged, which can further enhance the anti-vibration capacity of the application and improve the anti-vibration strength.

[0056] In the application, the outer edge of the lead support 4 is provided with a plurality of rectifier bridge leads 41, and the rectifier bridge leads 41 correspond to the wire positioning parts 21 one by one; the rectifier bridge lead 41 comprises two welding plates, the stator phase line 8 passing through the wire through hole 211 extends into the two welding plates, and the two welding plates are clamped together and welded with the stator phase line 8 to be integrated, so as to ensure the firm connection.

[0057] Preferably, the end cover bushing 7 is provided with a plurality of holding grooves 71, and the plurality of holding grooves 71 are equidistantly arranged around the axis of the end cover bushing 7. The arrangement of the holding grooves 71 facilitates the operator to hold the end cover bushing 7 and mount it on the positive plate 5, thereby reducing the installation difficulty.

[0058] Embodiment three

[0059] The application discloses a water-cooled generator, and the water-cooled generator is provided with the rectifier bridge. The structure of the rectifier bridge and the phase insulation bushing has been described in the above embodiments, and will not be described here again.

[0060] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A phase insulation bushing, characterized by The bushing body (1) comprises an arc-shaped structure, and the inner side of the bushing body (1) is provided with a plurality of spaced insulating positioning units (2); the side of the bushing body (1) towards the center of the circle is defined as the inner side thereof; The insulating positioning unit (2) comprises a threading positioning portion (21) and a screw flat pad portion (22), the threading positioning portion (21) is provided with a threading through hole (211) for threading and positioning a stator phase line (8); the screw flat pad portion (22) is arranged close to the center of the bushing body (1), and the screw flat pad portion (22) is provided with a screw through hole (221).

2. The phase insulation bushing of claim 1, wherein, The threading positioning portion (21) comprises a tab support table (212) arranged outside the threading through hole (211); In the axial direction of the bushing body (1), the thickness of the screw flat pad portion (22) is smaller than the thickness of the tab support table (212).

3. The phase insulation bushing of claim 2, wherein, The threading positioning portion (21) comprises a threading guide protrusion (213) arranged outside the threading through hole (211), and the threading guide protrusion (213) is arranged on the side away from the tab support table (212).

4. The phase insulation bushing of claim 3, wherein, The threading guide protrusion (213) has a U-shaped cross section, and the threading guide protrusion (213) is provided with a guide inclined surface (214) in communication with the threading through hole (211).

5. The phase-insulating bushing of claim 1, wherein, The outer side of the screw through hole (221) is provided with an annular boss (222).

6. The phase-insulating bushing of claim 1, wherein, The bushing body (1) is provided with a conformal rib (3); in the radial direction of the bushing body (1), the conformal rib (3) is arranged outside the threading positioning portion (21).

7. A rectifier bridge comprising a lead frame (4) and a positive plate (5) and a negative plate (6) mounted on the lead frame (4), characterized in that The positive plate (5) and the negative plate (6) are provided with the phase insulating bushing according to any one of claims 1 to 6; the mounting surface of the positive plate (5) and the mounting surface of the negative plate (6) are in the same plane, and the positive plate (5) is provided with an end cover bushing (7).

8. The rectifier bridge of claim 7, wherein, The outer edge of the lead bracket (4) is provided with a plurality of rectifier bridge tabs (41), and the rectifier bridge tabs (41) correspond one-to-one to the threading positioning portions (21); The rectifier bridge tab (41) comprises two welding plates, the stator phase line (8) passing through the threading through hole (211) extends into the two welding plates, and the two welding plates are welded together with the stator phase line (8) after being clamped together.

9. The rectifier bridge of claim 8, wherein, The end cover bushing (7) is provided with a plurality of holding grooves (71), and the plurality of holding grooves (71) are equidistantly arranged around the axis of the end cover bushing (7).

10. A water-cooled electric generator characterized by The water-cooled generator is provided with the rectifier bridge according to any one of claims 7 to 9. The water-cooled generator is provided with the rectifier bridge according to any one of claims 7 to 9.

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