CN220138203U - Fixing structure of lower yoke iron frame - Google Patents
Fixing structure of lower yoke iron frame Download PDFInfo
- Publication number
- CN220138203U CN220138203U CN202321132248.4U CN202321132248U CN220138203U CN 220138203 U CN220138203 U CN 220138203U CN 202321132248 U CN202321132248 U CN 202321132248U CN 220138203 U CN220138203 U CN 220138203U
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- China
- Prior art keywords
- movable contact
- lower yoke
- yoke iron
- iron frame
- piece
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 49
- 230000000149 penetrating effect Effects 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Abstract
The utility model discloses a fixing structure of a lower yoke iron frame, which is provided with a movable contact bracket, a fixed sheet, a movable contact sheet, a lower yoke iron frame, an insulating bushing and a contact spring; the movable contact support is provided with a through jack, and the end part of the fixing piece is inserted into the through jack; the movable contact piece is arranged between the fixed piece and the lower yoke frame; the side part of the movable contact piece is provided with a matching groove, the lower yoke iron frame is U-shaped, and the frame arm of the lower yoke iron frame is arranged in the matching groove of the movable contact piece; the insulating bush is connected to the bottom of the movable contact bracket, the upper end of the contact spring contacts the bottom surface of the contact piece, and the lower end of the contact spring contacts the insulating bush. The utility model can fix and limit the movable contact piece and the lower yoke frame in three dimensions after being assembled, is not easy to fall off relatively, is more fastened after being assembled, and improves the reliability of the contactor.
Description
Technical Field
The utility model relates to a fixing structure of a lower yoke iron frame, and belongs to the technical field of contactors.
Background
The contactor is a device capable of rapidly cutting off an alternating current and direct current main loop and frequently switching on and off a large current control (up to 800A) circuit, is often applied to a motor as a control object, and can also be used for controlling electric loads such as factory equipment, an electric heater, a working master machine, various electric power units and the like, and the contactor not only can switch on and off the circuit, but also has a low-voltage release protection effect.
At present, in some types of contactors, a moving contact piece of the contactor is installed by pressing a moving piece into a lower yoke iron frame, penetrating a pushing rod to drive the moving contact piece to move by the pushing rod to realize opening and closing, but the moving contact piece is not matched with the lower yoke iron in the mode, so that the moving contact piece and the lower yoke iron frame are loose and fall off after moving, the moving contact piece and the lower yoke iron easily slide relatively when too loose, a clamping force is generated on the pushing rod, and the moving contact piece can not be restored to an initial position in time, so that the stability of a product is affected.
Disclosure of Invention
The utility model aims to provide a fixing structure of a lower yoke iron frame, which solves the problems that a movable contact piece of a traditional contactor is not matched with a lower yoke iron, so that the movable piece and the lower yoke iron frame loose and fall off after acting, and the stability is affected.
The technical scheme for solving the technical problems is as follows: the fixing structure of the lower yoke iron frame comprises a movable contact bracket, a fixing sheet, a movable contact sheet, a lower yoke iron frame, an insulating bushing and a contact spring; the movable contact support is provided with a penetrating hole, and the end part of the fixing piece is inserted into the penetrating hole; the movable contact piece is positioned between the fixed piece and the lower yoke frame; the side part of the movable contact piece is provided with a matching groove, the lower yoke iron frame is U-shaped, and a frame arm of the lower yoke iron frame is arranged in the matching groove of the movable contact piece;
the insulation bush is connected to the bottom of the movable contact support, the upper end of the contact spring contacts the bottom surface of the movable contact piece, and the lower end of the contact spring contacts the insulation bush.
As a preferable scheme of the fixing structure of the lower yoke iron frame, the bottom of the lower yoke iron frame extends to the edge of the movable contact piece to form a clamping base, and the clamping base is provided with a clamping hole;
the movable contact piece is provided with a clamping column at the position corresponding to the clamping bottom support, and the clamping column is arranged in the clamping hole.
As the fixed knot of yoke chase constructs preferably scheme down, the joint collet is the dislocation form and distributes in the opposite angle the lateral part of yoke chase down, the card post is the dislocation form and distributes in the opposite angle the inboard of cooperation recess.
As the fixed structure of the lower yoke iron frame preferably, the bottom of the movable contact piece is provided with a spring limiting head, and the upper end of the contact spring is sleeved on the periphery of the spring limiting head;
the upper end of the insulating bushing is provided with a spring limiting groove, and the lower end of the contact spring is positioned in the spring limiting groove.
As the fixed structure optimization scheme of the lower yoke iron frame, a plurality of groups of penetrating holes are formed in the penetrating holes, and the penetrating holes are distributed up and down along the movable contact support.
As a preferable scheme of the fixing structure of the lower yoke iron frame, four spring positioning columns distributed in a quadrilateral manner are arranged at the bottom of the lower yoke iron frame.
The utility model has the beneficial effects that the movable contact device is provided with a movable contact bracket, a fixed sheet, a movable contact sheet, a lower yoke iron frame, an insulating bushing and a contact spring; the movable contact support is provided with a through jack, and the end part of the fixing piece is inserted into the through jack; the movable contact piece is arranged between the fixed piece and the lower yoke frame; the side part of the movable contact piece is provided with a matching groove, the lower yoke iron frame is U-shaped, and the frame arm of the lower yoke iron frame is arranged in the matching groove of the movable contact piece; the insulating bush is connected to the bottom of the movable contact bracket, the upper end of the contact spring contacts the bottom surface of the contact piece, and the lower end of the contact spring contacts the insulating bush. The utility model can fix and limit the movable contact piece and the lower yoke frame in three dimensions after being assembled, is not easy to fall off relatively, is more fastened after being assembled, and improves the reliability of the contactor.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those skilled in the art from this disclosure that the drawings described below are merely exemplary and that other embodiments may be derived from the drawings provided without undue effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present utility model, should fall within the scope of the utility model.
Fig. 1 is an overall schematic diagram of a fixing structure of a lower yoke iron frame according to an embodiment of the present utility model;
fig. 2 is an overall schematic diagram of another view of a fixing structure of a lower yoke iron frame according to an embodiment of the present utility model;
fig. 3 is an exploded view of a fixing structure of a lower yoke iron frame according to an embodiment of the present utility model;
fig. 4 is an overall schematic diagram of a fixing structure of another lower yoke iron frame according to an embodiment of the present utility model;
fig. 5 is an exploded view of another fixing structure of the lower yoke frame according to the embodiment of the present utility model.
In the figure, 1, a movable contact bracket; 2. a fixing piece; 3. a movable contact piece; 4. a lower yoke iron frame; 5. an insulating bush; 6. a contact spring; 7. penetrating the jack; 8. a mating groove; 9. a frame arm; 10. clamping a bottom bracket; 11. a clamping hole; 12. a clamping column; 13. a spring positioning head; 14. a spring limit groove; 15. and a spring positioning column.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Referring to fig. 1, 2 and 3, an embodiment of the present utility model provides a fixing structure of a lower yoke iron frame, which includes a movable contact bracket 1, a fixing piece 2, a movable contact piece 3, a lower yoke iron frame 4, an insulation bushing 5 and a contact spring 6; the movable contact bracket 1 is provided with a penetration hole 7, and the end part of the fixing piece 2 is inserted into the penetration hole 7; the movable contact piece 3 is positioned between the fixed piece 2 and the lower yoke frame 4; the side part of the movable contact piece 3 is provided with a matching groove 8, the lower yoke frame 4 is U-shaped, and a frame arm 9 of the lower yoke frame 4 is arranged in the matching groove 8 of the movable contact piece 3;
the insulating bush 5 is connected to the bottom of the movable contact bracket 1, the upper end of the contact spring 6 contacts the bottom surface of the movable contact piece 3, and the lower end of the contact spring 6 contacts the insulating bush 5.
In this embodiment, the bottom of the lower yoke frame 4 extends to the edge of the movable contact piece 3 to form a clamping bottom bracket 10, and the clamping bottom bracket 10 is provided with a clamping hole 11; a clamping column 12 is arranged at the position of the movable contact sheet 3 corresponding to the clamping base 10, and the clamping column 12 is arranged in the clamping hole 11; the clamping supports 10 are distributed on the side part of the lower yoke frame 4 in a diagonally staggered mode, and the clamping columns 12 are distributed on the inner side of the matching groove 8 in a diagonally staggered mode.
Specifically, in the assembly process, the top surface of the clamping bottom support 10 of the lower yoke frame 4 is matched with the bottom surface of the movable contact piece 3, so that the movable contact piece 3 is fixed in the Z direction; the inner face of the frame arm 9 of the lower yoke frame 4 is matched with the bottom face of the matching groove 8 of the movable contact piece 3, wherein the frame arm 9 and the matching groove 8 of the movable contact piece 3 are symmetrically designed, and in addition, the outer peripheral face of the clamping column 12 is matched with the inner face of the clamping hole 11, so that the movable contact piece 3 is fixed in the X, Y direction.
Wherein, the clamping column 12 and the clamping collet 10 are both designed in a staggered diagonal manner, so that the stability of the movable contact piece 3 is improved. After the assembly is completed, the frame arms 9 of the lower yoke iron frame 4 are riveted inwards, and simultaneously, the clamping columns 12 are riveted, so that secondary fixation is completed.
In this embodiment, a spring limiting head 13 is formed at the bottom of the movable contact piece 3, and the upper end of the contact spring 6 is sleeved on the periphery of the spring limiting head 13; the upper end of the insulating bush 5 is provided with a spring limit groove 14, and the lower end of the contact spring 6 is positioned in the spring limit groove 14.
Specifically, the spring limiting head 13 is matched with the spring limiting groove 14 on the insulating bush 5, so that the installation limiting of the contact spring 6 is realized, and the control of the movable contact piece 3 by the contact spring 6 through the core bar below the insulating bush 5 belongs to the prior art of contactors. A contactor with a limit structure of the contact spring 6 is disclosed in the related art, and an additional patent application has been made, and will not be described herein.
In summary, the utility model is provided with a movable contact bracket 1, a fixed sheet 2, a movable contact sheet 3, a lower yoke iron frame 4, an insulating bush 5 and a contact spring 6; the movable contact bracket 1 is provided with a through jack 7, and the end part of the fixing piece 2 is inserted into the through jack 7; the movable contact piece 3 is arranged between the fixed piece 2 and the lower yoke frame 4; the side part of the movable contact piece 3 is provided with a matching groove 8, the lower yoke frame 4 is U-shaped, and a frame arm 9 of the lower yoke frame 4 is arranged in the matching groove 8 of the movable contact piece 3; the insulating bush 5 is connected to the bottom of the movable contact bracket 1, the upper end of the contact spring 6 contacts the bottom surface of the contact piece 3, and the lower end of the contact spring 6 contacts the insulating bush 5. In the assembly process, the top surface of the clamping base 10 of the lower yoke frame 4 is matched with the bottom surface of the movable contact piece 3, so that the movable contact piece 3 is fixed in the Z direction; the inner face of the frame arm 9 of the lower yoke frame 4 is matched with the bottom face of the matching groove 8 of the movable contact piece 3, wherein the frame arm 9 and the matching groove 8 of the movable contact piece 3 are symmetrically designed, and in addition, the outer peripheral face of the clamping column 12 is matched with the inner face of the clamping hole 11, so that the movable contact piece 3 is fixed in the X, Y direction. The clamping columns 12 and the clamping supports 10 are designed diagonally in a staggered mode, and stability of the movable contact piece 3 is improved. After the assembly is completed, the frame arms 9 of the lower yoke iron frame 4 are riveted inwards, and simultaneously, the clamping columns 12 are riveted, so that secondary fixation is completed. According to the utility model, the movable contact piece 3 and the lower yoke frame 4 are fixed and limited in XYZ three-dimensional directions after being assembled, relative falling-off assembly is not easy to occur, the lower yoke frame 4 is riveted after being assembled, on one hand, riveting fixation is carried out inwards from two sides, and on the other hand, secondary fixation is carried out by riveting with the clamping hole 11 through the lower Fang Kazhu, so that the flatness of the movable contact piece 3 is ensured, and the reliability of the contactor is improved.
Referring to fig. 4 and 5, in another embodiment of the fixing structure of the lower yoke frame, two or more groups of the penetrating holes 7 may be provided as required, and the penetrating holes 7 are distributed up and down along the movable contact bracket 1; four spring positioning columns 15 distributed in a quadrilateral manner are arranged at the bottom of the lower yoke iron frame 4.
Specifically, the fixing piece 2 can be installed by selecting the through holes 7, the installation positions of the fixing piece 2 are different, the tightness degree of the contact springs 6 is different, and the sensitivity is further different. In addition, the contact spring 6 may be fixed by a spring positioning column 15.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (6)
1. The fixing structure of the lower yoke iron frame is characterized by comprising a movable contact bracket (1), a fixed sheet (2), a movable contact sheet (3), a lower yoke iron frame (4), an insulating bushing (5) and a contact spring (6); the movable contact support (1) is provided with a penetrating hole (7), and the end part of the fixing piece (2) is inserted into the penetrating hole (7); the movable contact piece (3) is positioned between the fixed piece (2) and the lower yoke iron frame (4); the side part of the movable contact piece (3) is provided with a matching groove (8), the lower yoke iron frame (4) is U-shaped, and a frame arm (9) of the lower yoke iron frame (4) is arranged in the matching groove (8) of the movable contact piece (3);
the insulation bushing (5) is connected to the bottom of the movable contact support (1), the upper end of the contact spring (6) is in contact with the bottom surface of the movable contact piece (3), and the lower end of the contact spring (6) is in contact with the insulation bushing (5).
2. The fixing structure of the lower yoke iron frame according to claim 1, wherein the bottom of the lower yoke iron frame (4) extends to the edge of the movable contact piece (3) to form a clamping base (10), and the clamping base (10) is provided with a clamping hole (11);
the movable contact piece (3) is provided with a clamping column (12) at the position corresponding to the clamping base (10), and the clamping column (12) is arranged in the clamping hole (11).
3. The fixing structure of the lower yoke frame according to claim 2, wherein the clamping bases (10) are distributed on the side of the lower yoke frame (4) in a diagonally offset manner, and the clamping columns (12) are distributed on the inner side of the matching groove (8) in a diagonally offset manner.
4. A fixing structure of a lower yoke iron frame according to claim 3, characterized in that a spring limiting head (13) is formed at the bottom of the movable contact piece (3), and the upper end of the contact spring (6) is sleeved on the periphery of the spring limiting head (13);
the upper end of the insulating bushing (5) is provided with a spring limiting groove (14), and the lower end of the contact spring (6) is positioned in the spring limiting groove (14).
5. The fixing structure of the lower yoke iron frame according to claim 1, wherein the penetrating holes (7) are provided with a plurality of groups, and the penetrating holes (7) of the plurality of groups are distributed up and down along the movable contact bracket (1).
6. The fixing structure of the lower yoke iron frame according to claim 5, wherein four spring positioning columns (15) distributed in a quadrilateral shape are arranged at the bottom of the lower yoke iron frame (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321132248.4U CN220138203U (en) | 2023-05-08 | 2023-05-08 | Fixing structure of lower yoke iron frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321132248.4U CN220138203U (en) | 2023-05-08 | 2023-05-08 | Fixing structure of lower yoke iron frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220138203U true CN220138203U (en) | 2023-12-05 |
Family
ID=88955112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321132248.4U Active CN220138203U (en) | 2023-05-08 | 2023-05-08 | Fixing structure of lower yoke iron frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220138203U (en) |
-
2023
- 2023-05-08 CN CN202321132248.4U patent/CN220138203U/en active Active
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| GR01 | Patent grant |