Armature installation structure and vacuum relay

Abstract

The utility model discloses an armature installation structure and a vacuum relay, which 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 two ends of the shaft pin to generate an abutting limiting effect. According to the utility model, the armature is rotatably 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 also provided with the limiting structures which can abut against the two ends of the shaft pin, so that when the armature is installed, the shaft pin does not need to be fixed by brazing, and can be directly limited by the two limiting structures to prevent the shaft pin from falling off; 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] This utility model relates to the field of relay technology, specifically to an armature mounting structure and a vacuum relay. Background Technology

[0002] In a current type of snap-fit ​​vacuum relay, the armature is rotatably connected to the upper end of a magnetic cylinder via a pin. Specifically, a connecting seat integrated with the magnetic cylinder is provided at the upper end of the magnetic cylinder. The armature and the connecting seat are rotatably connected by a pin that passes through the armature and the connecting seat. However, during assembly, after the pin is inserted between the armature and the connecting seat, both ends of the pin need to be welded to the connecting seat for fixation. The high temperature of welding may cause the pin to deform due to heat, which may lead to the armature's up-and-down rotation becoming stuck and not smooth, affecting the normal operation of the relay product. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an armature mounting structure in which the pin does not require welding after being installed between the armature and the armature frame, making it less prone to deformation and helping to ensure the smooth rotation of the magnetic cylinder with the same armature.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0005] An armature mounting structure includes a magnetic cylinder, an armature, and an armature frame. The armature is rotatably connected to the armature frame via a pin. The armature frame is fixed on the magnetic cylinder, and the magnetic cylinder is provided with two limiting structures corresponding to the two ends of the pin to generate a resisting limiting effect.

[0006] Furthermore, the two limiting structures are arranged opposite to each other on the magnetic cylinder, and the area between the two limiting structures forms a bracket mounting slot for installing the armature frame, and the armature frame is adapted to be embedded in the bracket mounting slot.

[0007] Furthermore, the armature frame is configured to be able to translate back and forth in the bracket mounting slot to adjust the mounting position of the armature on the magnetic cylinder, thereby adjusting the contact gap.

[0008] Furthermore, after the armature frame is installed in the mounting slot of the bracket, the armature frame and the limiting structure are fixed together by welding.

[0009] Furthermore, the armature frame has a recess, and the armature has a protrusion. The protrusion of the armature is fitted into the recess of the armature frame, and the armature and the armature frame are rotatably connected by a pin that passes through the recess and the protrusion, so that the armature can rotate up and down relative to the armature frame around the pin to produce a snapping action.

[0010] Furthermore, the distance between the inner walls of the two limiting structures is adapted to the distance between the two outer walls of the armature frame. The mutual cooperation between the inner walls of the two limiting structures and the two outer walls of the armature frame guides the forward and backward translation of the armature frame in the bracket mounting slot.

[0011] Furthermore, the two ends of the pin are configured to protrude slightly from the two outer side walls of the armature frame. The inner side walls of the two limiting structures are provided with clearance grooves to allow the pin ends to pass through. The distance between the inner side walls of the two clearance grooves is adapted to the length between the two ends of the pin, so that the inner side walls of the two clearance grooves can exert a resisting and limiting effect on the two ends of the pin.

[0012] Furthermore, a transmission rod support is provided on the armature.

[0013] Based on the same inventive concept, this utility model also provides a vacuum relay, including any of the armature mounting structures described above.

[0014] The above technical solution has the following advantages or beneficial effects:

[0015] In the armature mounting structure and vacuum relay described in this utility model, the armature is rotatably connected to the armature frame via a shaft pin, and the armature frame is then fixed to the magnetic cylinder. The magnetic cylinder is also provided with limiting structures that can abut against both ends of the shaft pin. Thus, when installing the armature, the shaft pin does not need to be fixed by brazing. It can be directly limited by the two limiting structures to prevent it from falling out, which greatly reduces the risk of deformation of the shaft pin during installation, causing the armature to rotate awkwardly and making it easier to improve the stability of the product. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the magnetic cylinder according to an embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the assembly structure of the armature and armature frame according to an embodiment of the present utility model.

[0018] Figure 3 This is a partial structural schematic diagram of the vacuum relay according to an embodiment of the present invention.

[0019] Figure 4 This is a partial top view of the vacuum relay according to an embodiment of the present invention.

[0020] Label Explanation:

[0021] 1. Magnetic cylinder, 2. Armature, 3. Armature frame, 4. Shaft pin, 5. Bracket mounting slot, 6. Transmission rod bracket, 11. Limiting structure, 111. Clearance slot. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Please refer to the appendix. Figure 1 To be continued Figure 4 One embodiment of this utility model provides an armature mounting structure, including a magnetic cylinder 1, an armature 2, and an armature frame 3. The armature 2 is rotatably connected to the armature frame 3 via a pin 4. The armature frame 3 is fixed to the magnetic cylinder 1, and the magnetic cylinder 1 is provided with two limiting structures 11 corresponding to the two ends of the pin 4 to generate a resisting and limiting effect. It can be understood that in this embodiment, the armature 2 is rotatably connected to the armature frame 3 via the pin 4, and the armature frame 3 is fixed to the magnetic cylinder 1. Furthermore, the magnetic cylinder 1 is provided with limiting structures 11 that can abut against the two ends of the pin 4. Thus, when installing the armature 4, the pin 4 does not need to be fixed by brazing; it can be directly limited by the two limiting structures 11 to prevent it from coming off. This greatly reduces the risk of deformation of the pin 4 during installation, causing the armature 4 to become stuck and difficult to rotate, and is beneficial to improving the stability of the product.

[0025] Please refer to the appendix. Figure 1 To be continued Figure 3 In one preferred embodiment, two limiting structures 11 are disposed opposite to each other on the magnetic cylinder 1, and the area between the two limiting structures 11 forms a bracket mounting slot 5 for mounting the armature frame 3, the armature frame 3 being adaptedly embedded in the bracket mounting slot 5. Preferably, the armature frame 3 is configured to be able to translate back and forth in the bracket mounting slot 5 to adjust the mounting position of the armature 2 on the magnetic cylinder 1, thereby adjusting the contact gap. In this embodiment, during the installation of the armature 2, the armature frame 3 can move back and forth in the bracket mounting slot 5 between the two limiting structures 11. This allows for convenient adjustment of the contact gap and overtravel before leaving the factory. After adjustment, the armature frame 3 and the magnetic cylinder 1 can be fixed to position the relative position between the armature 2 and the magnetic cylinder 1. Furthermore, the limiting of the two limiting structures 11 ensures that the armature frame 3 and the armature 2 can be stably maintained at the center of the upper part of the magnetic cylinder 1 during back-and-forth adjustment without swaying left or right. When adjusting the contact position, the left and right concentricity of the product can be guaranteed, which is beneficial to improving the debugging pass rate and assembly efficiency.

[0026] Please refer to the appendix. Figure 1 To be continued Figure 3 In one preferred embodiment, after the armature frame 3 is installed in the bracket mounting 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 has been adjusted by forward and backward translation in the bracket mounting 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 locking structures with set screws, etc. It is not limited to the specific implementation method disclosed in this embodiment, as long as the armature frame 3 and the magnetic cylinder 1 can be stably fixed together.

[0027] Please refer to the appendix. Figure 2 Appendix Figure 3 In one preferred embodiment, the armature frame 3 has a recess, and the armature 2 has a protrusion. The protrusion of the armature 2 is fitted into the recess of the armature frame 3, and the armature 2 and the armature frame 3 are rotatably connected by a pin 4 that passes through the recess and the protrusion, allowing the armature 2 to rotate up and down relative to the armature frame 3 around the pin 4 to produce a snapping action. Preferably, the distance between the inner sidewalls of the two limiting structures 11 is adapted to the distance between the two outer sidewalls of the armature frame 3. The mutual cooperation between the inner sidewalls of the two limiting structures 11 and the two outer sidewalls of the armature frame 3 guides the forward and backward translation of the armature frame 3 in the bracket mounting slot 5. Furthermore, the two ends of the pin 4 are configured to slightly protrude from the two outer sidewalls of the armature frame 3. Relief grooves 111 are provided on the inner sidewalls of the two limiting structures 11 to accommodate the ends of the pin 4. The distance between the inner sidewalls of the two relief grooves 111 is adapted to the length between the two ends of the pin 4, so that the inner sidewalls of the two relief grooves 111 provide a resisting and limiting effect on the two ends of the pin 4. However, those skilled in the art will understand that in other embodiments, the two ends of the pin 4 may also be flush with the two outer sidewalls of the armature frame 3.

[0028] Please refer to the appendix. Figure 3 In one preferred embodiment, a transmission rod support 6 is provided on the armature 2.

[0029] Please refer to the appendix. Figure 1 To be continued Figure 4 One embodiment of this utility model also provides a vacuum relay, including any of the armature mounting structures described above.

[0030] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model. Therefore, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. An armature mounting structure, characterized in that: It includes a magnetic cylinder (1), an armature (2) and an armature frame (3). The armature (2) is rotatably connected to the armature frame (3) through a shaft pin (4). The armature frame (3) is fixed on the magnetic cylinder (1). The magnetic cylinder (1) is provided with two limiting structures (11) that correspond to the two ends of the shaft pin (4) to generate a resisting limiting effect.

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

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

4. The armature mounting structure according to claim 3, characterized in that: After the armature frame (3) is installed in the bracket mounting 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) has a recess, and the armature (2) has a protrusion. The protrusion of the armature (2) is fitted into the recess of the armature frame (3), and the armature (2) and the armature frame (3) are rotatably connected by a pin (4) that passes through the recess and the protrusion, so that the armature (2) can rotate up and down relative to the armature frame (3) around the pin (4) to produce a snapping action.

6. The armature mounting structure according to claim 5, characterized in that: The spacing between the inner walls of the two limiting structures (11) is adapted to the spacing between the two outer walls of the armature frame (3). The mutual cooperation between the inner walls of the two limiting structures (11) and the two outer walls of the armature frame (3) guides the forward and backward translation of the armature frame (3) in the bracket mounting slot (5).

7. The armature mounting structure according to claim 6, characterized in that: The two ends of the pin (4) are configured to protrude slightly from the two outer sidewalls of the armature frame (3). The inner sidewalls of the two limiting structures (11) are provided with clearance grooves (111) to accommodate the ends of the pin (4). The distance between the inner sidewalls of the two clearance grooves (111) is adapted to the length between the two ends of the pin (4), so that the inner sidewalls of the two clearance grooves (111) can abut and limit the ends of the pin (4).

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

9. A vacuum relay, characterized in that: Includes the armature mounting structure as described in any one of claims 1 to 8.

Images