CN216871818U

CN216871818U - Rotary switch

Info

Publication number: CN216871818U
Application number: CN202220040367.6U
Authority: CN
Inventors: 薛豪; 何金垚; 张红伟; 计新华; 赵青青; 金显将; 李辉; 王小英
Original assignee: Zhejiang Tengen Electric Co Ltd
Current assignee: Zhejiang Tengen Electric Co Ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-07-01
Anticipated expiration: 2032-01-05

Abstract

The utility model provides a rotary switch, which belongs to the technical field of electrical switches and comprises a plurality of load modules and a central shaft, wherein the load modules are stacked up and down; the center pin rotates and wears to establish in the through hole of a plurality of movable contact pads, and the upper end and the energy memory of center pin are connected, and the lower extreme and the remote control device of center pin are connected. The rotary switch provided by the utility model meets the aim of arranging the remote control device close to the lower end of the rotary switch, can reduce the installation space occupied at the upper end of the rotary switch when the rotary switch is installed, and improves the adaptability of the rotary switch.

Description

Rotary switch

Technical Field

The utility model relates to the technical field of electric switches, in particular to a rotary switch.

Background

The rotary switch is one of isolating switches and is used for controlling the on-off of current in a circuit, so that a part of a power distribution device needing power failure is reliably isolated from a live part.

For the multi-stage load isolating switch, a plurality of load modules are stacked in the switch shell, and each load module is provided with a movable contact disc. When the operation is carried out, a plurality of movable contact discs need to be driven simultaneously.

In the prior art, in order to ensure that a plurality of movable contact discs arranged in a stacked mode can be in synchronous transmission, a square hole is formed in the center of each movable contact disc in some schemes, and then the movable contact discs sequentially penetrate through the square holes through a quadrangular prism to achieve linkage of the movable contact discs.

In the rotary switch, an energy storage device is generally arranged, and the movable contact disc is driven by the energy storage device, so that the movable contact and the static contact in the rotary switch can be quickly contacted and disconnected; therefore, when the rotary switch is provided with the remote control device, the remote control device can only be connected with the energy storage device, and then the movable contact disc is driven by the energy storage device, so that the contact and the disconnection of the movable contact and the fixed contact in the rotary switch can be ensured.

However, when the quadrangular prism is used to link a plurality of movable contact pads, the installation position of the remote control device on the rotary switch can only be close to one side of the energy storage device, and the energy storage device is also required to be connected with a knob, so the installation position of the electric control device can only be the position of the rotary switch close to the knob (upper end). The upper end of the rotary switch inevitably occupies more installation space, so that the rotary switch is not beneficial to actual installation and use.

SUMMERY OF THE UTILITY MODEL

Therefore, the present invention is directed to overcome the defect that the rotary switch in the prior art only mounts the remote control device at a position close to the upper end, so that the upper end of the rotary switch occupies too much mounting space, and thereby a rotary switch capable of mounting the remote control device at a position close to the lower end is provided.

In order to solve the above problems, the present invention provides a rotary switch comprising:

the load module is provided with a plurality of load modules which are stacked up and down, the plurality of load modules are internally provided with a plurality of rotatable movable contact discs respectively, the movable contact discs between every two adjacent load modules are arranged in a relatively static manner, and the centers of the movable contact discs are provided with through holes;

the central shaft is rotatably arranged in the through holes of the movable contact discs in a penetrating way, the upper end of the central shaft is connected with the operating end of the energy storage device, the executing end of the energy storage device is connected with the movable contact discs of the load module in a clamping way, the lower end of the central shaft is connected with the remote control device, and the energy storage device drives the movable contact discs to synchronously act due to the fact that the remote control device drives the central shaft.

Further, the through hole is a circular hole having an inner diameter larger than an outer diameter of the center shaft.

Furthermore, the upper end and the lower end of the movable contact disc are respectively provided with a clamping jaw structure which can be mutually inserted.

Further, the remote manipulation apparatus includes: and the rotary driving device is arranged at the bottom of the load module, and a driving shaft of the rotary driving device extends upwards and is in butt joint connection with the central shaft.

Further, a drive shaft of the rotary drive device is connected with the central shaft through a coupling.

Further, the remote manipulation apparatus includes: the rotary driving device is arranged on the side surface of the load module, and a driving shaft of the rotary driving device extends downwards and is connected with the central shaft through a transmission structure.

Further, the drive shaft of the rotary drive device is connected with the central shaft through a gear assembly.

Further, it is characterized in that the remote manipulation apparatus includes: the linear driving device is arranged at the bottom or the side surface of the load module, and a driving shaft of the linear driving device extends along the transverse direction and is connected with the central shaft through a transmission device.

Further, the transmission device includes: the transmission rack and the transmission gear are meshed and connected, the transmission gear is coaxially connected with the central shaft, and the transmission rack is connected with a driving shaft of the linear driving device in parallel.

Further, the linear driving device is an electromagnetic mechanism.

The technical scheme of the utility model has the following advantages:

1. according to the rotary switch provided by the utility model, the through hole is formed in the center of the movable contact discs, the central shaft is rotatably arranged in the through holes of the movable contact discs in a penetrating manner, the remote control device can be arranged at the lower end of the rotary switch, then the central shaft is connected to the energy storage device in a transmission manner, and the movable contact discs are driven by the energy storage device, so that the purpose of arranging the remote control device close to the lower end of the rotary switch is met, the installation space at the upper end of the rotary switch can be saved when the rotary switch is installed, and the adaptability of the rotary switch is improved.

2. According to the rotary switch provided by the utility model, the central shaft is set to be the circular shaft, and the through hole of the movable contact disc is the circular hole with the inner diameter larger than the outer diameter of the central shaft, so that the circular shaft is conveniently arranged in the movable contact disc in a penetrating mode, the movable contact disc is positioned, and the movable contact disc is convenient to assemble.

3. According to the rotary switch provided by the utility model, the upper end and the lower end of the movable contact disc are respectively provided with the clamping claw structures which can be mutually inserted, so that the movable contact disc between two adjacent load modules can be conveniently clamped and arranged, and the movable contact discs can be conveniently driven to synchronously act.

4. In the rotary switch provided by the utility model, the remote control device comprises the rotary driving device, and the rotary driving device is arranged on the side surface or the bottom of the load module, and a driving shaft of the rotary driving device is connected with the central shaft, so that the occupied space of the remote control device can be reduced, the central shaft can be quickly operated, and the operation effect of the rotary switch can be improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a perspective view of a rotary switch in an embodiment of the present invention.

Fig. 2 is an exploded view of the assembly of a load module and a central shaft in an embodiment of the utility model.

FIG. 3 is a schematic diagram of clamping adjacent movable contact pads according to an embodiment of the present invention.

Fig. 4 is a schematic view of the internal structure of fig. 1 with the outer shell removed.

Fig. 5 is a schematic view of an embodiment of a rotary switch using a rotary driving device according to an embodiment of the present invention.

Fig. 6 is an exploded view of fig. 5.

Fig. 7 is a schematic view of an embodiment of a rotary switch using a rotary driving device according to an embodiment of the present invention.

Fig. 8 is an exploded view of fig. 7.

Description of reference numerals:

1. a load module; 2. a central shaft; 3. an energy storage device; 4. a remote control device;

101. a first movable contact pad; 102. a second movable contact pad; 103. a columnar protrusion; 104. grooving; 105. an annular projection; 106. passing through the aperture;

401. a rotation driving device; 402. a moving gear; 403. a transmission gear; 404. a drive rack; 405. a connecting plate; 406. a coupling; 407. a linear driving device.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The present embodiment provides a rotary switch, which includes a plurality of load modules 1 and a central shaft 2 penetrating through the load modules 1.

As shown in fig. 1, 2 and 3, each load module 1 is stacked up and down, a plurality of load modules 1 are respectively provided with a rotatable movable contact plate, the movable contact plates between adjacent load modules 1 are arranged relatively statically, because the central shaft 2 is rotatably arranged in the through holes 106 of the movable contact plates, the upper end of the central shaft 2 is connected with the operating end of the energy storage device 3, and the lower end of the central shaft 2 is connected with the remote control device 4.

When the central shaft 2 is controlled to rotate by the remote control device 4, after the central shaft 2 acts with the energy storage device 3 in advance, when the energy storage device 3 moves to a critical point, the execution end of the energy storage device 3 is utilized to drive the movable contact disc to rotate, and the on-off operation of the rotary switch is carried out, so that the aim of arranging the remote control device 4 close to the lower end of the rotary switch is fulfilled, the installation space at the upper end of the rotary switch is saved, the adaptability of the rotary switch is effectively improved, in addition, the output force of the energy storage mechanism is relatively stable when the structure is adopted, the stable operation of the switch can be ensured, and the driving force of the motor is reduced.

Here, the above-mentioned assembly structure of the energy storage device 3 and the central shaft 2 may be implemented by using the existing well-established rotary switch technology. In addition, in this embodiment, the movable contact pads between two adjacent load modules are arranged in a relatively static state, and when the execution end of the energy storage device 3 drives one of the movable contact pads to rotate, the adjacent movable contact pads can be driven to synchronously act, so that the synchronous action of the movable contact pads on each layer of load modules 1 is realized.

As shown in fig. 2 and 3, the central shaft 2 in this embodiment is a circular shaft, the through hole 106 in the movable contact plate is a circular hole with an inner diameter larger than the outer diameter of the central shaft 2, and when the central shaft 2 is inserted into each movable contact plate, the circular shaft is convenient for the assembly between the movable contact plate and the circular shaft, and is beneficial to positioning the movable contact plate and reducing the assembly error. As an alternative embodiment, the central shaft 2 may also be a shaft with other cross-sectional forms, as long as there is no radially-directed snap-in action between the central shaft 2 and the movable contact pad.

As shown in fig. 3, in this embodiment, the load module 1 is equipped with two static contacts, the two movable contacts are butt-formed, the movable contact is clamped between the two movable contacts, and the movable contact rotated by the follower contacts the static contacts, so as to realize the power on/off operation of the load module 1. Here, the two movable contact pads are preferably connected by ultrasonic welding, and for convenience of description, the movable contact pad on the upper side of the two movable contact pads arranged in a butt joint is referred to as a first movable contact pad 101, and the movable contact pad on the lower side is referred to as a second movable contact pad 102.

As shown in fig. 3, the upper and lower ends of the movable contact disc in this embodiment are respectively provided with a claw structure capable of being inserted into each other. Specifically, the upper surface of the first movable contact disc 101 has a column-shaped protrusion 103 coaxially disposed with the through hole 106, and a slot 104 is disposed on a side edge of the column-shaped protrusion 103, the slot 104 has two symmetrically disposed slots, the lower surface of the second movable contact disc 102 has an annular protrusion 105, a shape of the annular protrusion 105 is adapted to the arrangement of the slot 104, when the movable contact discs between two adjacent load modules 1 are connected, the annular protrusion 105 of the second movable contact disc 102 on one load module 1 is correspondingly inserted into the slot 104 of the first movable contact disc 101 of the other load module 1, so as to form a rotation restriction effect between the two load modules 1; as an alternative embodiment, the claw structure can be arranged on other positions of the movable contact disc as long as the claw structure and the movable contact disc are synchronously rotated under the butt joint state.

As shown in fig. 4, the remote controller 4 in this embodiment includes a rotation driving device 401, the rotation driving device 401 is installed at the bottom of the load module 1, and a driving shaft of the rotation driving device 401 extends upward and is connected to the central shaft 2 in a butt joint manner. The driving shaft of the rotary driving device 401 is connected with the central shaft 2 through the coupling 406, after assembly is completed, the rotary driving device 401 drives the central shaft 2 to rotate, the central shaft 2 drives the movable contact plate at the top end to move through the energy storage device 3, and the movable contact plates on the load modules 1 are synchronously rotated due to the fact that the movable contact plates are connected in a clamping mode, and on-off operation of the rotary switch is achieved. The rotation driving device 401 is adopted to drive the central shaft 2, so that the driving efficiency of the rotation driving device 401 is improved, the output of extra power when other remote connecting components are configured is avoided, and the production cost is reduced.

In this embodiment, through directly locating rotary drive device 401 in the bottom of load module 1, be favorable to sparingly rotary drive device 401's installation space, simultaneously, rotary switch when the change work is safeguarded to needs, only need follow rotary switch's bottom dismantle can, avoid needing to dismantle the irrelevant part of rotary switch upper end in proper order to be convenient for operate, save time and cost of labor.

As an alternative embodiment, as shown in fig. 5 and 6, the remote controller 4 in this embodiment comprises a rotary driving device 401, the rotary driving device 401 is installed at the side of the load module 1, and the driving shaft of the rotary driving device 401 extends downward and is connected with the central shaft 2 through a transmission structure. Specifically, the driving shaft and the central shaft 2 of the rotation driving device 401 are respectively provided with a moving gear 402, and the driving shaft drives the central shaft 2 to synchronously move through the moving gears 402 which are meshed with each other. As an alternative embodiment, the transmission structure can also be designed as a sprocket drive or a belt drive, as long as a synchronous action of the drive shaft and the central shaft 2 is ensured.

The rotary drive device 401 may be a conventional and well-established rotary electric machine. In the remote control device 4, other accessories suitable for remote control, such as a circuit control board, a current detection component, etc., are provided, which will not be described below.

As an alternative embodiment, as shown in fig. 7 and 8, the remote controller 4 in this embodiment comprises a linear driving device 407, the linear driving device 407 is mounted on the bottom or side of the load module 1, and a driving shaft of the linear driving device 407 extends in a transverse direction and is connected with the central shaft 2 through a transmission device. Specifically, the transmission device comprises a transmission rack 404 and a transmission gear 403 which are meshed and connected, the transmission gear 403 is coaxially connected with the central shaft 2, the transmission rack 404 is connected with a driving shaft of the linear driving device 407 in parallel, when the driving shaft of the linear driving device 407 acts, the transmission rack 404 is driven to move synchronously, and the central shaft 2 is driven to rotate due to the transmission gear 403 which is meshed and arranged, so that the breaking operation of the rotary switch is realized.

As an alternative embodiment, the linear driving device 407 is an electromagnetic mechanism, which can be made by using the existing mature electromagnetic technology, and the electromagnetic mechanism generates a magnetic field by using electricity and realizes the linear motion of the driving shaft by using the opposite attraction effect of the magnetic field. Here, the tip of drive shaft has linked firmly L type connecting plate 405, still is provided with the mounting panel between rotary switch and the electromagnetic mechanism, and connecting plate 405 carries out the sliding motion through the slide rail that sets up on the mounting panel, and drive rack 404 sets up on connecting plate 405, because the drive shaft carries out linear motion, and drive rack 404 meshes the drive gear 403 on the center pin 2 and rotates to drive center pin 2 and rotate. As another alternative, the linear driving device 407 may also adopt other mechanisms, such as an electric push rod, an air cylinder, and the like.

In this embodiment, the rotary driving device 401 or the linear driving device 407 may be disposed on the side surface or the bottom of the load module 1, so as to be beneficial to flexibly adjusting the spatial position of the external driving device mounted on the rotary switch, avoid occupying the space of the rotary switch, and prevent the driving device from interfering with the upper end component of the rotary switch, thereby avoiding affecting the normal maintenance or assembly state of the rotary switch, and being beneficial to the actual installation and use of the rotary switch.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims

1. A rotary switch, comprising:

the load module (1) is provided with a plurality of load modules (1) which are stacked up and down, the plurality of load modules (1) are internally provided with a rotatable movable contact plate respectively, the movable contact plates between every two adjacent load modules (1) are arranged in a relatively static manner, and the centers of the movable contact plates are provided with through holes (106);

the central shaft (2) is rotatably arranged in the through holes (106) of the movable contact discs in a penetrating mode, the upper end of the central shaft (2) is connected with the operation end of the energy storage device (3), the execution end of the energy storage device (3) is connected with the movable contact disc of the load module (1) in a clamping mode, the lower end of the central shaft (2) is connected with the remote control device (4), and the central shaft (2) is driven by the remote control device (4), so that the energy storage device (3) drives the movable contact discs to synchronously act.

2. A rotary switch according to claim 1, characterized in that the through hole (106) is a circular hole with an inner diameter larger than the outer diameter of the central shaft (2).

3. The rotary switch according to claim 2, wherein the upper and lower ends of the movable contact disc are respectively provided with a claw structure capable of being inserted into each other.

4. A rotary switch according to any one of claims 1-3, characterized in that the remote control (4) comprises: the rotary driving device (401) is installed at the bottom of the load module (1), and a driving shaft of the rotary driving device (401) extends upwards and is in butt joint with the central shaft (2).

5. A rotary switch according to claim 4, characterized in that the drive shaft of the rotary drive (401) is connected with the central shaft (2) by means of a coupling (406).

6. A rotary switch according to any one of claims 1-3, characterized in that the remote control (4) comprises: the rotary driving device (401) is installed on the side face of the load module (1), and a driving shaft of the rotary driving device (401) extends downwards and is connected with the central shaft (2) through a transmission structure.

7. A rotary switch according to claim 6, characterised in that the drive shaft of the rotary drive (401) is connected to the central shaft (2) by means of a gear assembly.

8. A rotary switch according to any one of claims 1-3, characterized in that the remote control (4) comprises: the linear driving device (407), the linear driving device (407) is installed at the bottom or the side of the load module (1), and the driving shaft of the linear driving device (407) extends along the transverse direction and is connected with the central shaft (2) through a transmission device.

9. The rotary switch according to claim 8, wherein the transmission comprises: a transmission rack (404) and a transmission gear (402) which are meshed and connected, wherein the transmission gear (402) is coaxially connected with the central shaft (2), and the transmission rack (404) is connected with a driving shaft of the linear driving device (407) in parallel.

10. A rotary switch according to claim 8, characterised in that the linear drive (407) is an electromagnetic mechanism.