Armature installation structure and relay

Abstract

The armature installation structure comprises a magnetic conductive cylinder, an armature and an armature frame, the armature is rotatably connected with the armature frame through a shaft pin, the armature frame is fixed on the magnetic conductive cylinder, and the magnetic conductive cylinder is provided with two limiting structures which respectively correspond to the two ends of the shaft pin to generate an abutting limiting effect. The armature is rotationally connected with the armature frame through the shaft pin, the armature frame is fixed with the magnetic conductive cylinder, and the magnetic conductive cylinder is further provided with the limiting structures capable of abutting against the two ends of the shaft pin, so that when the armature is installed, the shaft pin does not need to be fixed through brazing, and the shaft pin can be directly limited by the two limiting structures to be prevented from being disengaged; the risk that the armature rotates unsmoothly due to deformation of the shaft pin in the installation process is greatly reduced, and the use stability of the product is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of relays, and in particular to an armature mounting structure and a relay. Background Art

[0002] The armature of an existing snap-on vacuum relay is rotatably connected to the upper end of a magnetic cylinder by an axle pin. Specifically, a connecting seat integrated with the magnetic cylinder is provided at the upper end of the magnetic cylinder, and the armature and the connecting seat are rotatably connected by an axle pin passing through the armature and the connecting seat. However, during the assembly process, after the axle pin is inserted into place between the armature and the connecting seat, it is necessary to weld the two ends of the axle pin to the connecting seat, and the high temperature of welding may cause the axle pin to deform due to heat, thereby causing the armature to rotate up and down and become stuck and not smooth, affecting the normal operation of the relay product. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides an armature mounting structure, wherein the axle pin does not need to be welded and fixed after being installed in place between the armature and the armature frame, is not prone to deformation, and is conducive to ensuring the smooth rotation of the armature and the same magnetic conductive cylinder.

[0004] To achieve the above object, the present invention is implemented by the following technical solutions: An armature installation structure comprises a magnetic cylinder, an armature and an armature frame. The armature is rotatably connected to the armature frame through an axle pin. The armature frame is fixed on the magnetic cylinder. The magnetic cylinder is provided with two limit structures respectively corresponding to the two ends of the axle pin to produce a resistance limit effect.

[0005] Furthermore, the two limiting structures are arranged opposite to each other on the magnetic conductive cylinder, and the area between the two limiting structures forms a bracket installation slot for installing the armature frame, and the armature frame is adaptively embedded and installed in the bracket installation slot.

[0006] Furthermore, the armature frame is configured to be able to translate forward and backward in the bracket mounting slot to adjust the mounting position of the armature on the magnetic conductive cylinder and thus adjust the contact gap.

[0007] Furthermore, after the armature frame is installed in place in the bracket installation slot, the armature frame and the limiting structure are fixed by welding.

[0008] Furthermore, a recess is provided on the armature frame, and a convex portion is provided on the armature. The convex portion of the armature is adaptively embedded in the recess of the armature frame, and an axle pin passing through the recess and the convex portion is used to form a rotational connection between the armature and the armature frame, so that the armature can rotate up and down around the axle pin relative to the armature frame to produce a snapping action.

[0009] Furthermore, the distance between the inner side walls of the two limiting structures matches the distance between the two outer side walls of the armature frame, and the inner side walls of the two limiting structures cooperate with the two outer side walls of the armature frame to guide the forward and backward translation of the armature frame in the bracket installation slot.

[0010] Furthermore, the two ends of the axle pin are configured to slightly protrude from the two outer walls of the armature frame, and avoidance grooves are opened on the inner walls of the two limiting structures to make way for the ends of the axle pin, and the spacing between the inner walls of the two avoidance grooves is adapted to the length between the two ends of the axle pin, so that the inner walls of the two avoidance grooves can produce a resistance and limiting effect on the two ends of the axle pin.

[0011] Furthermore, a transmission rod bracket is arranged on the armature.

[0012] Based on the same inventive concept, the present invention also provides a vacuum relay, comprising any of the above-mentioned armature mounting structures.

[0013] The above technical solution has the following advantages or beneficial effects:

[0014] In the armature mounting structure and relay described in the present invention, the armature is rotatably connected to the armature frame through an axle pin, and the armature frame is fixed together with the magnetic cylinder, and the magnetic cylinder is also provided with a limiting structure that can abut against the two ends of the axle pin. In this way, when installing the armature, the axle pin no longer needs to be fixed by brazing, and can be directly limited by two limiting structures to prevent it from falling out, which greatly reduces the risk of deformation of the axle pin during installation, resulting in jamming and unsmooth rotation of the armature, and is conducive to improving the stability of product use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the magnetic conductive cylinder according to an embodiment of the present invention.

[0016] Figure 2 It is a schematic diagram of the assembly structure of the armature and the armature frame according to an embodiment of the present invention.

[0017] Figure 3 It is a partial structural schematic diagram of a vacuum relay according to an embodiment of the present invention.

[0018] Figure 4 It is a top view of the local structure of the vacuum relay according to the embodiment of the present invention.

[0019] Description of labels:

[0020] 1. Magnetic cylinder, 2. Armature, 3. Armature frame, 4. Axle pin, 5. Bracket mounting slot, 6. Transmission rod bracket, 11. Limiting structure, 111. Avoidance slot. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] Please refer to the attached Figure 1 To Attachment Figure 4 One embodiment of the present invention provides an armature installation structure, including a magnetic cylinder 1, an armature 2 and an armature frame 3, wherein the armature 2 is rotatably connected to the armature frame 3 through an axle pin 4, the armature frame 3 is fixed on the magnetic cylinder 1, and the magnetic cylinder 1 is provided with two limiting structures 11 corresponding to the two ends of the axle pin 4 to produce a resistance limiting effect. It can be understood that in this embodiment, the armature 2 is rotatably connected to the armature frame 3 through the axle pin 4, and the armature frame 3 is fixed to the magnetic cylinder 1, and the magnetic cylinder 1 is also provided with a limiting structure 11 capable of abutting against the two ends of the axle pin 4. In this way, when installing the armature 4, the axle pin 4 does not need to be fixed by brazing, and can be directly limited by the two limiting structures 11 to prevent it from falling out, which greatly reduces the risk of deformation of the axle pin 4 during the installation process, resulting in the armature 4 rotating unsmoothly, and is conducive to improving the stability of the product.

[0024] Please refer to the attached Figure 1 To Attachment Figure 3 In one preferred embodiment, two limiting structures 11 are arranged opposite to each other on the magnetic tube 1, and the area between the two limiting structures 11 forms a bracket installation slot 5 for installing the armature frame 3, and the armature frame 3 is adaptively embedded and installed in the bracket installation slot 5. Preferably, the armature frame 3 is configured to be able to translate forward and backward in the bracket installation slot 5 to adjust the installation position of the armature 2 on the magnetic tube 1 and thus adjust the contact gap. In this embodiment, during the installation of the armature 2, the armature frame 3 can be translated back and forth in the bracket installation slot 5 between the two limiting structures 11, so that the contact gap and overtravel can be conveniently debugged before leaving the factory. After the debugging is completed, the armature frame 3 and the magnetic tube 1 are fixed to locate the relative position between the armature 2 and the magnetic tube 1, and the two limiting structures 11 are used to limit the armature frame 3 and the armature 2 so that they can be stably maintained at the center of the upper end of the magnetic tube 1 for translation when adjusting the armature frame 3 and the armature 2 back and forth, and no left and right shaking will occur. When debugging the contact position back and forth, the left and right concentricity of the product can be guaranteed, which is beneficial to improving the debugging qualification rate and assembly efficiency.

[0025] Please refer to the attached Figure 1 To Attachment Figure 3 In one preferred embodiment, after the armature frame 3 is installed in place in the bracket installation slot 5, the armature frame 3 and the limiting structure 11 are fixed by welding. However, those skilled in the art should understand that in other embodiments, after the armature frame 3 is adjusted to move forward and backward in the bracket installation slot 5, it can be fixed by welding at the joint between the armature frame 3 and the limiting structure 11. In addition, it can also be fixed by other conventional fixing structures, such as a fixing pin locking structure, etc., and is not limited to the specific implementation method disclosed in this embodiment, as long as the armature frame 3 and the magnetic tube 1 can be stably fixed together.

[0026] Please refer to the attached Figure 2 , Attachment Figure 3 In one preferred embodiment, a recess is provided on the armature frame 3, and a protrusion is provided on the armature 2. The protrusion of the armature 2 is adaptively embedded in the recess of the armature frame 3, and the armature 2 and the armature frame 3 are rotatably connected by an axle pin 4 that penetrates the recess and the protrusion, and the armature 2 can rotate up and down relative to the armature frame 3 around the axle pin 4 to produce a snapping action. Preferably, the spacing between the inner side walls of the two limiting structures 11 is adapted to the spacing between the two outer side walls of the armature frame 3, and the inner side walls of the two limiting structures 11 cooperate with the two outer side walls of the armature frame 3 to form a guiding effect for the front and rear translation of the armature frame 3 in the bracket installation slot 5. Furthermore, the two ends of the shaft pin 4 are configured to slightly protrude from the two outer side walls of the armature frame 3, and the inner side walls of the two limiting structures 11 are provided with avoidance grooves 111 for giving way to the ends of the shaft pin 4, and the spacing between the inner side walls of the two avoidance grooves 111 is adapted to the length between the two ends of the shaft pin 4, so that the inner side walls of the two avoidance grooves 111 produce a conflicting and limiting effect on the two ends of the shaft pin 4. However, those skilled in the art should understand that in other embodiments, in other embodiments, the two ends of the shaft pin 4 may also be flush with the two outer side walls of the armature frame 3.

[0027] Please refer to the attached Figure 3 In one preferred embodiment, a transmission rod bracket 6 is provided on the armature 2.

[0028] Please refer to the attached Figure 1 To Attachment Figure 4 An embodiment of the present invention further provides a vacuum relay, comprising any of the armature mounting structures described above.

[0029] As described above, the embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. These modifications or replacements do not deviate the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention. Therefore, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

Claims

1. An armature mounting structure, characterized in that: The invention comprises a magnetic cylinder (1), an armature (2) and an armature frame (3); the armature (2) is rotatably connected to the armature frame (3) via an axle pin (4); the armature frame (3) is fixed on the magnetic cylinder (1); and the magnetic cylinder (1) is provided with two limiting structures (11) which respectively correspond to the two ends of the axle pin (4) to produce a resisting limiting effect.

2. The armature mounting structure according to claim 1, characterized in that: The two limiting structures (11) are arranged opposite to each other on the magnetic tube (1), and the area between the two limiting structures (11) forms a bracket installation slot (5) for installing the armature frame (3), and the armature frame (3) is adaptively embedded in the bracket installation slot (5).

3. The armature mounting structure according to claim 2, characterized in that: The armature frame (3) is configured to be able to translate forward and backward in the bracket installation slot (5) to adjust the installation position of the armature (2) on the magnetic conductive cylinder (1) and thus adjust the contact gap.

4. The armature mounting structure according to claim 3, characterized in that: When the armature frame (3) is installed in place in the bracket installation slot (5), the armature frame (3) and the limiting structure (11) are fixed by welding.

5. The armature mounting structure according to claim 2, characterized in that: The armature frame (3) is provided with a recessed portion, the armature (2) is provided with a convex portion, the convex portion of the armature (2) is adaptively embedded in the recessed portion of the armature frame (3), and the armature (2) and the armature frame (3) are rotatably connected via an axle pin (4) penetrating the recessed portion and the convex portion, and the armature (2) can rotate up and down relative to the armature frame (3) around the axle pin (4) to produce a snapping action.

6. The armature mounting structure according to claim 5, characterized in that: The spacing between the inner side walls of the two limiting structures (11) matches the spacing between the two outer side walls of the armature frame (3), and the inner side walls of the two limiting structures (11) and the two outer side walls of the armature frame (3) cooperate with each other to form a guiding effect on the forward and backward translation of the armature frame (3) in the bracket installation slot (5).

7. The armature mounting structure according to claim 6, characterized in that: The two ends of the shaft pin (4) are configured to slightly protrude from the two outer side walls of the armature frame (3), and the inner side walls of the two limiting structures (11) are provided with avoidance grooves (111) for giving way to the ends of the shaft pin (4), and the spacing between the inner side walls of the two avoidance grooves (111) is matched with the length between the two ends of the shaft pin (4), so that the inner side walls of the two avoidance grooves (111) produce a resistance and limit effect on the two ends of the shaft pin (4).

8. The armature mounting structure according to claim 1, characterized in that: A transmission rod bracket (6) is arranged on the armature (2).

9. A vacuum relay, characterized in that: The invention comprises the armature mounting structure as claimed in any one of claims 1 to 8.

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