Transmitter high-voltage change-over switch device
By designing a high-voltage switching switch device in the transmitter, and using the grounding mechanism between the switch knife and the grounding bracket, the problem of short circuit when the switch knife is disconnected is solved, and safety and reliability are improved.
Patent Information
- Application Number
- CN202320073782.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-01-09
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2033-01-09
AI Technical Summary
The switches in high-power transmitters are prone to short circuits when they are disconnected, causing personal electric shock, equipment damage, fire and other problems.
A high-voltage switching switch device of the transmitter is designed. Through the coordination of the mounting base, the inlet copper plate, the outlet copper plate, the insulating shaft, the switch knife and the grounding bracket, when the switch knife is disconnected from the output copper plate, the switch knife is connected to the grounding bracket, thereby realizing the grounding of the switch knife and reducing the risk of short circuit.
It effectively reduces the possibility of short circuit between the brake knives and equipment, prevents personal electric shocks, equipment damage, and fires, and prevents lightning and static damage, ensuring the normal operation of the power system.
Smart Images
Figure CN222562525U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of transmitters, and in particular to a high-voltage switching device for a transmitter. Background Art
[0002] A transmitter is a radio transmitter. It consists of oscillation, modulation and power amplification. It is a device that generates and modulates radio frequency current and transmits radio waves. After performing necessary error detection and error correction coding on the information sent by the source, the transmitter converts it into a signal suitable for transmission on the channel.
[0003] At present, the knife switch in the high-power transmitter only controls the on and off of the circuit. When the knife switch is disconnected, it is easy to cause a short circuit between the knife and the equipment, which may cause electric shock to people, damage to equipment and lines, and fire. Utility Model Content
[0004] In order to ground the knife switch when it is disconnected, thereby reducing the possibility of a short circuit between the knife switch and the equipment, the present application provides a high-voltage switching switch device for a transmitter.
[0005] The present application provides a transmitter high-voltage switching switch device adopts the following technical solution:
[0006] A high-voltage switching switch device for a transmitter, comprising:
[0007] A mounting base, one end of which is fixedly connected to a power-input copper plate, and the other end of which is fixedly connected to a power-output copper plate;
[0008] A grounding bracket, mounted on the mounting base, the grounding bracket being used to be connected to a ground wire;
[0009] An insulating shaft is rotatably connected to the mounting seat, a switch is fixedly connected to the insulating shaft, one end of the switch is connected to the power input copper plate, and the other end is connected to the power output copper plate or to the grounding bracket.
[0010] By adopting the above technical solution, when it is necessary to disconnect the power supply of the transmitter, the insulating shaft is rotated to disconnect the circuit between the power input copper plate and the power output copper plate, and the switch is connected to the grounding bracket to ground the switch. This reduces the possibility of electric shock to people, damage to equipment and lines, and prevents fires, lightning strikes, static electricity damage, and ensures the normal operation of the power system.
[0011] Optionally, contact clips are installed on both the power output copper plate and the grounding bracket, and a pressure block is fixedly connected to the contact clip.
[0012] By adopting the above technical solution, the contact clamp makes the contact between the switch and the power output copper plate more stable, or makes the contact between the switch and the grounding bracket more stable. The contact clamp can be stably connected to the power output copper plate or the grounding bracket through the setting of the pressure block.
[0013] Optionally, a plurality of grounding holes are provided on the grounding bracket.
[0014] By adopting the above technical solution, the provision of the grounding hole facilitates the connection between the grounding bracket and the ground wire.
[0015] Optionally, the knife switch includes a knife plate and a sleeve, and the sleeve is sleeved on the insulating shaft; a mounting groove is opened on the insulating shaft, a stopper is installed in the mounting groove, and the sleeve is detachably connected to the stopper.
[0016] By adopting the above technical solution, in order to reduce the instability of opening a screw hole on the insulating shaft, an installation groove is opened on the insulating shaft, a stop block is installed in the installation groove, and then the sleeve is sleeved on the stop block, and then the sleeve is detachably connected to the stop block, so that the sleeve is fixedly connected to the insulating shaft, so that the knife plate can be fixedly connected to the insulating shaft.
[0017] Optionally, a threaded hole is provided on the stopper, and the sleeve is fixedly connected to the stopper by bolts.
[0018] By adopting the above technical solution, the setting of the stopper not only increases the stability of the threaded connection, but also facilitates the installation of the device. During maintenance, only the stopper needs to be replaced without replacing the insulating shaft, which facilitates maintenance.
[0019] Optionally, guiding slopes are respectively provided on both sides of the knife plate rotating around the axis of the insulating shaft.
[0020] By adopting the above technical solution, the setting of the guiding slope makes it easier for the knife plate to be inserted into the contact clamp.
[0021] Optionally, one end of the insulating shaft is fixedly connected to a rocker, and the axis of the rocker is perpendicular to the axis of the insulating shaft.
[0022] By adopting the above technical solution, the setting of the rocker makes it more convenient to rotate the insulating shaft, which is convenient for controlling the connection between the knife switch and the power output copper plate, or controlling the connection between the knife switch and the grounding bracket.
[0023] Optionally, one end of the rocker is fixedly connected to a mounting sleeve, the mounting sleeve is sleeved on the insulating shaft, a positioning pin is inserted into the mounting sleeve, and the positioning pin passes through the insulating shaft.
[0024] By adopting the above technical solution, after the rocker is positioned at a position that is convenient for control, the positioning pin is inserted on the insulating shaft through the mounting sleeve, making it more convenient to control the rocker.
[0025] Optionally, a connecting rod is rotatably connected to the insulating shaft, a driving member is fixedly connected to the mounting seat, a wheel disc is fixedly connected to the output shaft of the driving member, and the wheel disc is rotatably connected to the connecting rod.
[0026] By adopting the above technical solution, the rotation of the driving wheel of the driving member drives the movement of the connection, thereby driving the rotation of the insulating shaft, thereby controlling the switch to be connected to the power output copper plate, or controlling the switch to be connected to the grounding bracket.
[0027] In summary, the present application includes at least one of the following beneficial technical effects:
[0028] 1. By using the cooperation of the mounting base, the power inlet copper plate, the power outlet copper plate, the insulating shaft, the knife and the grounding bracket, when the knife is disconnected from the power outlet copper plate, the knife is connected to the grounding bracket, thereby achieving the effect of reducing the possibility of short circuit between the knife and the equipment;
[0029] 2. By using the cooperation of the insulating shaft and the rocker, the effect of facilitating the control of the rotation of the insulating shaft is achieved;
[0030] 3. By utilizing the cooperation of the insulating shaft, the driving member, the connecting rod and the wheel, the effect of automatically controlling the rotation of the insulating shaft is achieved. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 It is a structural schematic diagram of the transmitter high-voltage switching switch device in Example 1 of the present application.
[0032] Figure 2 It is a structural schematic diagram of the hidden grounding bracket of the transmitter high-voltage switching switch device in Example 1 of the present application.
[0033] Figure 3 It is a structural schematic diagram of the insulating shaft and the switch in Example 1 of the present application.
[0034] Figure 4 It is a schematic diagram of the structure of the insulating shaft in Example 1 of the present application.
[0035] Figure 5 It is a schematic diagram of the structure of the driving member and the connecting rod in Example 2 of the present application.
[0036] Description of reference numerals:
[0037] 1. Mounting seat; 11. Insulating plate; 2. Power inlet copper plate; 3. Power outlet copper plate; 4. Insulating shaft; 41. Mounting groove; 42. Stopper; 5. Switch; 51. Knife plate; 511. Guide slope; 52. Sleeve; 6. Grounding bracket; 61. Grounding hole; 7. Contact clamp; 71. Pressing block; 8. Rocker; 81. Mounting sleeve; 82. Positioning pin; 9. Driving member; 91. Wheel; 92. Connecting rod. DETAILED DESCRIPTION
[0038] The following is combined with Figure 1-5 This application is described in further detail.
[0039] The embodiment of the present application discloses a high-voltage switching switch device for a transmitter.
[0040] Example 1
[0041] Reference Figure 1 The high-voltage switching switch device of the transmitter includes a mounting base 1, one end of which is fixedly connected to an incoming copper plate 2, and the other end is fixedly connected to an outgoing copper plate 3. An insulating shaft 4 is provided between the incoming copper plate 2 and the outgoing copper plate 3, and the insulating shaft 4 is rotatably connected to the mounting base 1. A knife 5 is fixedly connected to the insulating shaft 4, and the end of the knife 5 connected to the insulating shaft 4 is connected to the incoming copper plate 2, and the end of the knife 5 away from the insulating shaft 4 is overlapped on the outgoing copper plate 3. A grounding bracket 6 is also fixedly connected to the mounting base 1, and the grounding bracket 6 is located on the rotation path of the knife 5. The grounding bracket 6 is used to connect to the ground wire. When the knife 5 is disconnected from the outgoing copper plate 3, the knife 5 is connected to the grounding bracket 6, so that the knife 5 is grounded, reducing the possibility of a short circuit between the knife 5 and the equipment.
[0042] Reference Figure 2 The mounting base 1 includes two insulating plates 11 which are parallel to each other. The axial direction of the insulating shaft 4 is parallel to the length direction of the insulating plates 11. The insulating plates 11 and the insulating shaft 4 are made of epoxy phenolic material, which has good insulation performance and is mainly used in mechanical, electrical and electronic fields. It has high mechanical strength, good electrical performance stability under high humidity, and high vertical layer bending strength, which meets the use requirements.
[0043] Reference Figure 2 There are three power-in copper plates 2, which are evenly arranged along the length direction of one of the insulating plates 11; there are three power-out copper plates 3, which are evenly arranged along the length direction of another insulating plate 11. There are also three switch blades 5, which are evenly arranged along the axis direction of the insulating shaft 4. The switch blades 5 are arranged one by one with the power-out copper plates 3, and the switch blades 5 are connected to the power-in copper plates 2 through flexible conductive materials, such as copper.
[0044] Reference Figure 1The grounding bracket 6 is suspended on the mounting base 1. The height of the grounding bracket 6 is just enough to allow the switch 5 to overlap the grounding bracket 6 when the switch 5 rotates. Three contact clamps 7 are installed on the grounding bracket 6. A pressure block 71 is fixedly connected to the contact clamp 7. The pressure block 71 abuts against the contact clamp 7 and is fixedly connected to the grounding bracket 6 through the connection with the bolt. The contact clamp 7 and the pressure block 71 are both made of conductive materials. The setting of the contact clamp 7 makes the connection between the switch 5 and the grounding bracket 6 more stable. The contact clamp 7 and the pressure block 71 are also provided on the power-out copper plate 3. Through the cooperation of the contact clamp 7 and the pressure block 71, the switch 5 is more stable when connected to the power-out copper plate 3.
[0045] Reference Figure 1 A plurality of grounding holes 61 are provided on the grounding bracket 6. The grounding holes 61 are arranged to facilitate connecting the grounding bracket 6 to the ground wire of the whole machine. The side of the bracket can also be grounded by soldering copper foil.
[0046] Reference Figure 3 and Figure 4 The knife 5 includes a knife plate 51 and a sleeve 52. The sleeve 52 is sleeved on the insulating shaft 4. The knife plate 51 is welded on the sleeve 52. The copper plate 2 is electrically connected to the sleeve 52. The insulating shaft 4 is provided with a mounting groove 41. A stopper 42 is provided in the mounting groove 41. The stopper 42 is provided with a screw hole. The sleeve 52 is sleeved on the mounting groove 41. Then, a bolt is passed through the sleeve 52 and is threadedly connected with the screw hole on the stopper 42, so that the knife plate 51 and the sleeve are fixedly connected to the insulating shaft 4.
[0047] Since the insulating shaft 4 is made of epoxy phenolic material, the threaded hole on the insulating shaft 4 is not stable enough and is not convenient for repeated disassembly and use, so a metal stopper 42 is provided. The metal stopper 42 makes the threaded hole more stable, and the insulating shaft 4 does not need to be replaced when the device is repaired or replaced.
[0048] Reference Figure 2 and Figure 3 The blade 51 is provided with guiding bevels 511 on both sides of the blade 51 along the insulating shaft 4. The setting of the guiding bevels 511 enables blades to be provided on both sides of the blade 51. The blade 51 provided with the guiding bevels 511 can be inserted into the contact clamp 7 more easily, making it easier to adjust the rotation state of the blade 51 by rotating the insulating shaft 4.
[0049] Reference Figure 3 and Figure 4 A rocker 8 is installed at one end of the insulating shaft 4, and the axis of the rocker 8 is arranged perpendicular to the axis of the insulating shaft 4. A mounting sleeve 81 is fixedly connected to one end of the rocker 8. The mounting sleeve 81 is sleeved on the insulating shaft 4. A positioning pin 82 is inserted on the mounting sleeve 81, and a thread is arranged on the outer surface of the positioning pin 82. The positioning pin 82 passes through the insulating shaft 4, so that the mounting sleeve 81 is fixedly connected to the insulating shaft 4.
[0050] After the rocker 8 is adjusted to a suitable angle, the insulating shaft 4 is penetrated by the positioning pin 82 and the mounting sleeve 81 is fixed to the insulating shaft 4, so that the rocker 8 controls the state of the knife switch 5 at a suitable angle.
[0051] The implementation principle of Example 1 of the present application is as follows: when the circuit is connected, the knife 5 is located in the contact clamp 7 on the power-outlet copper plate 3, so that the circuit remains open. When the circuit needs to be disconnected, the knife 5 on the insulating shaft 4 is disengaged from the contact clamp 7 on the power-outlet copper plate 3 by manually selecting the rocker 8, and rotated to the contact clamp 7 on the grounding bracket 6, so that the knife 5 is grounded, thereby reducing the possibility of a short circuit between the knife 5 and the equipment. It achieves the effects of preventing people from being electrocuted, equipment and lines from being damaged, preventing fires and lightning strikes, preventing electrostatic damage, and ensuring the normal operation of the power system. In addition, the present application has a simple structure, is easy to install and maintain, and has strong structural reliability.
[0052] Example 2
[0053] Reference Figure 5 The difference between Example 2 and Example 1 is that: in Example 2, a driving member 9 is fixedly connected to the mounting base 1, and the driving member 9 in the present application is a driving motor. A wheel disc 91 is fixedly connected to the output shaft of the driving member 9, and a connecting rod 92 is rotatably connected to the wheel disc 91. The end of the connecting rod 92 away from the wheel disc 91 is rotatably connected to the insulating shaft 4.
[0054] By controlling the rotation of the driving member 9, the wheel 91 is driven to rotate, the rotation of the wheel 91 drives the connecting rod 92 to move, the movement of the connecting rod 92 drives the insulating shaft 4 to rotate, and the rotation of the insulating shaft 4 controls the switch 5 to be located in the contact clamp 7 on the power output copper plate 3 or controls the switch 5 to be located in the contact clamp 7 on the grounding bracket 6.
[0055] The implementation principle of the second embodiment of the present application is as follows: when the knife switch 5 is located in the contact clip 7 on the power-outgoing copper plate 3 and needs to be disconnected, the driving member 9 is driven to rotate, driving the insulating shaft 4 to rotate, so that the knife switch 5 moves from the contact clip 7 on the power-outgoing copper plate 3 to the contact clip 7 on the grounding bracket 6. When the knife switch 5 needs to be connected to the contact clip 7 on the power-outgoing copper plate 3 again, the driving member 9 is controlled to rotate in the opposite direction, so that the knife switch 5 moves from the contact clip 7 on the grounding bracket 6 to the contact clip 7 on the power-outgoing copper plate 3.
[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A high voltage switching switch device for a transmitter, characterized in that ,include: A mounting base (1), one end of the mounting base (1) being fixedly connected to a power input copper plate (2), and the other end of the mounting base (1) being fixedly connected to a power output copper plate (3); A grounding bracket (6) mounted on the mounting base (1), the grounding bracket (6) being used to be connected to a ground wire; An insulating shaft (4) is rotatably connected to the mounting seat (1), and a switch (5) is fixedly connected to the insulating shaft (4), one end of the switch (5) is connected to the power inlet copper plate (2), and the other end is connected to the power outlet copper plate (3) or to the grounding bracket (6).
2. The transmitter high voltage switching switch device according to claim 1, characterized in that: A contact clamp (7) is installed on both the power output copper plate (3) and the grounding bracket (6), and a pressure block (71) is fixedly connected to the contact clamp (7).
3. The transmitter high voltage switching switch device according to claim 1, characterized in that: The grounding bracket (6) is provided with a plurality of grounding holes (61).
4. The transmitter high voltage switching switch device according to claim 1, characterized in that: The knife gate (5) comprises a knife plate (51) and a sleeve (52), wherein the sleeve (52) is sleeved on the insulating shaft (4); a mounting groove (41) is provided on the insulating shaft (4), a stopper (42) is installed in the mounting groove (41), and the sleeve (52) is detachably connected to the stopper (42).
5. The transmitter high voltage switching switch device according to claim 4, characterized in that: A threaded hole is provided on the stopper (42), and the sleeve (52) is fixedly connected to the stopper (42) by means of bolts.
6. The transmitter high voltage switching switch device according to claim 4, characterized in that: Guide slopes (511) are respectively provided on two sides of the knife plate (51) for rotating around the axis of the insulating shaft (4).
7. The transmitter high voltage switching switch device according to claim 1, characterized in that: One end of the insulating shaft (4) is fixedly connected to a rocker (8), and the axis of the rocker (8) and the axis of the insulating shaft (4) are perpendicular to each other.
8. The transmitter high voltage switching switch device according to claim 7, characterized in that: One end of the rocker (8) is fixedly connected to a mounting sleeve (81), the mounting sleeve (81) being sleeved on the insulating shaft (4), the mounting sleeve (81) being inserted with a positioning pin (82), and the positioning pin (82) passing through the insulating shaft (4).
9. The transmitter high voltage switching switch device according to claim 1, characterized in that: A connecting rod (92) is rotatably connected to the insulating shaft (4), a driving member (9) is fixedly connected to the mounting seat (1), a wheel disc (91) is fixedly connected to the output shaft of the driving member (9), and the wheel disc (91) is rotatably connected to the connecting rod (92).