Integrated rotating shaft of dual-power change-over switch

Abstract

The utility model relates to an integrated rotating shaft of a dual power supply change-over switch, which comprises a rotating shaft and a moving contact, the rotating shaft is driven by the rotation of the dual power supply change-over switch, the integrated rotating shaft further comprises a torsion spring, and the moving contact is concentrically assembled with the rotating shaft and sleeved outside the rotating shaft; one end of the torsion spring is connected with the rotating shaft, and the other end is connected with the moving contact, which drives the moving contact to rotate under the rotation of the rotating shaft. Compared with the prior art, a connecting rod is omitted, the action time and force loss in the transmission process are reduced, the conversion time is shortened, and the conversion speed is increased; and the device has the advantages of few assembly parts, simplicity in assembly, easiness in installation and the like.

Description

Technical Field

[0001] The utility model relates to the field of dual power conversion switches, in particular to an integrated rotating shaft of the dual power conversion switch. Background Art

[0002] In the prior art, most of the mechanisms for realizing the opening and closing of the moving contact of the dual power conversion switch are four-bar mechanisms, which are composed of a rotating shaft + a connecting rod, such as the dual power automatic conversion switch and its contact system disclosed in the utility model with publication number CN219350035U, which include a base and two contact units. Each contact unit includes a static contact and a moving contact assembly. The static contact is arranged to be fixed relative to the base. The static contacts of the two contact units are respectively used to connect the normal power supply and the backup power supply. The moving contact assembly is arranged to be rotatable relative to the base. Each moving contact assembly includes two contact pieces. The moving contact assembly can rotate relative to the base so that the static contact is inserted between the two contact pieces and can be conductively contacted with the two contact pieces after insertion. The contact piece is used to connect the electrical load.

[0003] The contact units of this solution include a rotating part, a connecting rod and a drive shaft. Each connecting rod consumes time and energy during the transmission process, which will prolong the conversion time, slow down the speed, and increase the corresponding parts and labor costs. Utility Model Content

[0004] The purpose of the utility model is to provide an integrated rotating shaft for a dual power conversion switch in order to overcome the defects in the prior art that most of the mechanisms for opening and closing the moving contacts of the dual power conversion switch are multi-link mechanisms, each link loses time and energy during the transmission process, which prolongs the conversion time, slows down the speed, and increases the corresponding parts and labor costs.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] An integrated rotating shaft of a dual power conversion switch comprises a rotating shaft and a moving contact. The rotating shaft is driven to rotate by the dual power conversion switch. The integrated rotating shaft also comprises a torsion spring. The moving contact is concentrically assembled with the rotating shaft. One end of the torsion spring is connected to the rotating shaft, and the other end is connected to the moving contact. The moving contact is driven to rotate when the rotating shaft rotates.

[0007] Furthermore, the integrated rotating shaft also includes a torsion spring outer shell, which is an internal hollow shell structure and is provided with a rotating shaft mounting hole for the rotating shaft to pass through and a moving contact hole for the moving contact to extend out, the rotating shaft mounting hole is matched with the rotating shaft transmission, one end of the torsion spring is fixedly connected to the torsion spring outer shell, and the other end abuts the moving contact.

[0008] Furthermore, the torsion spring is an annular structure and is sleeved on the outside of the rotating shaft.

[0009] Furthermore, the torsion spring is formed by winding an elastic wire, including an elastic wire end portion located at the same end, a ring-shaped elastic wire main body portion, and an elastic portion located in the middle and bent outward, the elastic wire end portion is fixedly connected to the torsion spring outer shell, the elastic wire main body portion is wound around the outside of the rotating shaft, and the elastic portion is abutted and connected to the moving contact.

[0010] Furthermore, the portion of the moving contact sleeve disposed outside the rotating shaft is located within the region where the elastic portion is located.

[0011] Furthermore, the cross-sectional shape of the rotating shaft is polygonal or elliptical, and the shape of the rotating shaft mounting hole matches the cross-sectional shape of the rotating shaft.

[0012] Furthermore, the cross-sectional shape of the rotating shaft and the shape of the rotating shaft mounting hole are both square.

[0013] Furthermore, the torsion spring outer shell is fixedly mounted on the rotating shaft through the rotating shaft mounting hole.

[0014] Furthermore, one end of the moving contact faces the static contact corresponding to the dual power conversion switch, and the other end is provided with a through hole, and the rotating shaft is located in the through hole.

[0015] Furthermore, the torsion spring and the moving contact are coaxially arranged.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] (1) The utility model drives the moving contact to rotate through the rotating shaft via the torsion spring. When the moving contact rotates and hits the static contact, the rotating shaft continues to rotate, and the torsion spring is opened to provide pressure to the moving contact to complete the switching action. The integrated rotating shaft simplifies the structure, eliminates the connecting rod, reduces the action time and force loss during the transmission process, shortens the switching time, and increases the switching speed. It also has the advantages of fewer assembly parts, simple assembly, and easy installation.

[0018] (2) In this solution, a torsion spring outer shell is arranged on the outside of the rotating shaft, which is connected to the rotating shaft in a transmission manner and can rotate under the rotation of the rotating shaft; the torsion spring outer shell is wrapped around the outside of the torsion spring and part of the moving contact, and the torsion spring outer shell can transmit the rotational motion of the rotating shaft to the torsion spring, and the moving contact is driven to rotate by the torsion spring; this structure makes the installation of the torsion spring more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an integrated rotating shaft of a dual power conversion switch provided in an embodiment of the utility model;

[0020] Figure 2It is a schematic exploded view of the structure of an integrated rotating shaft of a dual power conversion switch provided in an embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of an integrated rotating shaft of a dual power conversion switch provided in an embodiment of the utility model;

[0022] In the figure, 1, rotating shaft, 2, moving contact, 201, through hole, 3, torsion spring, 301, elastic wire end, 302, elastic wire main body, 303, elastic part, 4, torsion spring outer shell, 401, rotating shaft mounting hole, 402, moving contact hole. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0027] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] Example 1

[0030] like Figure 1 and Figure 2 As shown, this embodiment also provides an integrated rotating shaft of a dual power conversion switch, including a rotating shaft 1 and a moving contact 2. The rotating shaft 1 is driven to rotate by the dual power conversion switch. The integrated rotating shaft also includes a torsion spring 3. The moving contact 2 is concentrically assembled with the rotating shaft 1. One end of the torsion spring 3 is connected to the rotating shaft 1, and the other end is connected to the moving contact 2. When the rotating shaft 1 rotates, the moving contact 2 is driven to rotate.

[0031] In this solution, a torsion spring 3 is arranged on the outside of the rotating shaft 1, and the moving contact 2 is concentrically assembled on the outside of the rotating shaft 1. During the rotation of the rotating shaft 1, the torsion spring 3 is driven to rotate, and the moving contact 2 is pushed by the torsion spring 3 to rotate. When the moving contact 2 rotates and hits the static contact, the rotating shaft 1 continues to rotate, and the moving contact 2 is abutted by the static contact and remains stationary; at this time, the torsion spring 3 is opened under the rotation of the rotating shaft 1, and provides pressure to the moving contact 2, so that the moving contact 2 and the static contact maintain effective contact and complete the switching action; this structure ensures the stability of the pressure between the moving contact 2 and the static contact.

[0032] The integrated rotating shaft of this solution simplifies the structure, eliminates the connecting rod, reduces the action time and force loss during the transmission process, shortens the conversion time and speeds up the conversion; and also has the advantages of fewer assembly parts, simple assembly, and easy installation.

[0033] like Figure 3 As shown, in order to realize the coaxial assembly of the moving contact 2 and the rotating shaft 1, optionally, one end of the moving contact 2 faces the static contact corresponding to the dual power conversion switch, and the other end is provided with a through hole 201, and the rotating shaft 1 is located in the through hole 201; the coaxial setting of the moving contact 2 and the rotating shaft 1 is realized by the through hole 201, and the torsion spring 3 and the moving contact 2 are also coaxially arranged, so that the rotation process of the overall integrated rotating shaft is more stable.

[0034] As a preferred embodiment, in order to reliably and stably fix the torsion spring 3 on the rotating shaft 1, the integrated rotating shaft also includes a torsion spring outer shell 4, which is a shell structure with a hollow interior and is provided with a rotating shaft mounting hole 401 for the rotating shaft 1 to pass through and a moving contact hole 402 for the moving contact 2 to extend out. The rotating shaft mounting hole 401 is in transmission cooperation with the rotating shaft 1, one end of the torsion spring 3 is fixedly connected to the torsion spring outer shell 4, and the other end abuts against the moving contact 2.

[0035] In this solution, a torsion spring outer shell 4 is arranged on the outside of the rotating shaft 1, which is transmission connected to the rotating shaft 1 and can rotate under the rotation of the rotating shaft 1; the torsion spring outer shell 4 is wrapped around the outside of the torsion spring 3 and part of the moving contact 2, and the torsion spring outer shell 4 can transmit the rotational motion of the rotating shaft 1 to the torsion spring 3, and the moving contact 2 is driven by the torsion spring 3 to rotate; this structure makes the installation of the torsion spring 3 more stable and reliable.

[0036] Both ends of the moving contact 2 are raised, the raised part at one end is used to connect to the static contact, and the raised part at the other end is used to stabilize the overall position of the moving contact 2. The moving contact hole 402 is divided into two parts, each of which is larger than the raised area of ​​the moving contact 2, providing a space for the moving contact 2 to rotate in a small range; the moving contact hole 402 also provides a space for the torsion spring 3 to rotate in a small range.

[0037] The torsion spring outer shell 4 may be selected as an upper and lower split structure, which is convenient for installing the torsion spring 3 and the moving contact 2 inside.

[0038] The torsion spring 3 is used to transmit the rotational force of the rotating shaft 1 to the moving contact 2, and when the moving contact 2 is abutted and kept stationary by the static contact, the rotational force of the rotating shaft 1 is converted into an elastic force to press on the moving contact 2. Its structure can be an elastic structure. In this embodiment, the torsion spring 3 is an annular structure, which is sleeved on the outside of the rotating shaft 1; specifically, the torsion spring 3 is formed by winding elastic wire, including an elastic wire end 301 located at the same end, a ring-shaped elastic wire main body 302 and an elastic part 303 located in the middle and bent outward, the elastic wire end 301 is fixedly connected to the torsion spring outer shell 4, the elastic wire main body 302 surrounds the outside of the rotating shaft 1, the elastic part 303 is abutted and connected to the moving contact 2, and a U-shape is formed at the elastic part 303. The part of the moving contact 2 sleeved on the outside of the rotating shaft 1 is located in the area where the elastic part 303 is located.

[0039] The rotating shaft 1 can drive the torsion spring outer shell 4 to rotate together, so the cross-sectional shape of the rotating shaft 1 is preferably not set to a circle, which is difficult to transmit. The preferred cross-sectional shape of the rotating shaft 1 is a polygon or an ellipse, and the shape of the rotating shaft mounting hole 401 matches the cross-sectional shape of the rotating shaft 1.

[0040] In this embodiment, the cross-sectional shape of the rotating shaft 1 and the shape of the rotating shaft mounting hole 401 are both square.

[0041] The torsion spring outer shell 4 is fixedly mounted on the rotating shaft 1 through the rotating shaft mounting hole 401 .

[0042] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. An integrated rotating shaft of a dual power conversion switch, comprising a rotating shaft (1) and a moving contact (2), wherein the rotating shaft (1) is driven to rotate by the dual power conversion switch, and characterized in that: The integrated rotating shaft further comprises a torsion spring (3), and the moving contact (2) is concentrically assembled with the rotating shaft (1); one end of the torsion spring (3) is connected to the rotating shaft (1), and the other end is connected to the moving contact (2), and when the rotating shaft (1) rotates, the moving contact (2) is driven to rotate.

2. The integrated rotating shaft of a dual power conversion switch according to claim 1, characterized in that: The integrated rotating shaft further comprises a torsion spring outer shell (4), the torsion spring outer shell (4) being an internally hollow shell structure and provided with a rotating shaft mounting hole (401) for the rotating shaft (1) to pass through and a moving contact hole (402) for the moving contact (2) to extend out, the rotating shaft mounting hole (401) being in transmission cooperation with the rotating shaft (1), one end of the torsion spring (3) being fixedly connected to the torsion spring outer shell (4), and the other end being in contact with the moving contact (2).

3. The integrated rotating shaft of a dual power conversion switch according to claim 2, characterized in that: The torsion spring (3) is an annular structure and is sleeved on the outside of the rotating shaft (1).

4. The integrated rotating shaft of a dual power conversion switch according to claim 3, characterized in that: The torsion spring (3) is formed by winding an elastic wire, and comprises an elastic wire end portion (301) located at the same end, an elastic wire main body portion (302) distributed in an annular manner, and an elastic portion (303) located in the middle and bent outward, wherein the elastic wire end portion (301) is fixedly connected to the torsion spring outer shell (4), the elastic wire main body portion (302) is wound around the outside of the rotating shaft (1), and the elastic portion (303) is abutted against the moving contact (2).

5. The integrated rotating shaft of a dual power conversion switch according to claim 4, characterized in that: The portion of the moving contact (2) sleeved on the outside of the rotating shaft (1) is located in the area where the elastic portion (303) is located.

6. The integrated rotating shaft of a dual power conversion switch according to claim 2, characterized in that: The cross-sectional shape of the rotating shaft (1) is polygonal or elliptical, and the shape of the rotating shaft mounting hole (401) matches the cross-sectional shape of the rotating shaft (1).

7. The integrated rotating shaft of a dual power conversion switch according to claim 6, characterized in that: The cross-sectional shape of the rotating shaft (1) and the shape of the rotating shaft mounting hole (401) are both square.

8. The integrated rotating shaft of a dual power conversion switch according to claim 2, characterized in that: The torsion spring outer shell (4) is fixedly mounted on the rotating shaft (1) via the rotating shaft mounting hole (401).

9. The integrated rotating shaft of a dual power conversion switch according to claim 1, characterized in that: One end of the moving contact (2) faces the static contact corresponding to the dual power conversion switch, and the other end is provided with a through hole (201), and the rotating shaft (1) is located in the through hole (201).

10. The integrated rotating shaft of a dual power conversion switch according to claim 1, characterized in that: The torsion spring (3) and the moving contact (2) are coaxially arranged.

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