Front-mounted radio frequency signal switching device for coaxial change-over switch of electric motor

Abstract

The utility model discloses a preposed radio frequency signal switching device of an electric motor coaxial change-over switch, which relates to the technical field of radio frequency signal switching and specifically comprises a radio frequency U-shaped connector, a switching panel, an electric motor coaxial change-over switch and an HMI (human machine interface) control panel, the electric motor coaxial change-over switch is mounted on a front panel of the switching panel, and the electric motor coaxial change-over switch is mounted on a rear panel of the switching panel. A radio frequency U-shaped connector is installed below a front panel of the switching panel, the radio frequency U-shaped connector and the electric motor coaxial change-over switch are located on the same side of the switching panel, and the interface distance of the electric motor coaxial change-over switch is equal to the port distance of the radio frequency U-shaped connector. And an interface of the electric motor coaxial change-over switch is connected with the transmitter, the dummy load and the antenna feeder respectively. According to the utility model, manual or electric switching among the main and standby transmitters, the dummy load and the antenna feeder is realized, and when the electric switching fails, the normal operation of the system can be ensured through manual switching.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency signal switching technology, specifically a pre-positioned radio frequency signal switching device for an electric motor coaxial switching switch. Background Technology

[0002] A rapid switching system for radio frequency (RF) signals, including primary and backup transmitters, such as a communication base station system or a broadcast television transmission system, utilizes an RF signal switching device to achieve rapid switching between the primary and backup transmitter RF signals. Related technologies disclose several solutions for RF signal switching devices. For example, the solution disclosed in the authorized patent document with application number 201920364705.X ​​includes four RF U-coaxial connectors: RF U-coaxial connector one, RF U-coaxial connector two, RF U-coaxial connector three, and RF U-coaxial connector four, a coaxial switch, and a mounting panel. Another example is the solution disclosed in the authorized patent document with application number 201920962078.X, which includes a switch cabinet support body and a panel. The panel is fixed to one side of the switch cabinet support body and has a U-link on it. Each U-link includes a connection port and an outer conductor. Several groups of U-links are arranged in a fan shape, with an extended U-link positioned directly below the middle group. The connection between each group of U-links and the extended U-link... Both ports have upper and lower circular ports. The upper circular port is a hard feed port, connecting to components such as the output hard feed tube. The two aforementioned solutions have two main problems in use: First, they are structurally and operationally complex. Both achieve automatic switching of RF signals by controlling the rotation of a coaxial switch, but the coaxial switch is indirectly connected to the main and backup transmitters, resulting in a complex device structure. Furthermore, when the coaxial switch fails, the user needs to readjust the device's connections to restore normal operation. Even after the coaxial switch is repaired or replaced and is working properly, the user needs to reset the device's connections. This makes switching between manual and electric switching modes cumbersome, affecting ease of use. Second, they occupy a large amount of space. Due to the complex structure, typically only one coaxial switch, its matching switching panel, and various internal connections can be installed in a single cabinet. Therefore, this application proposes a front-mounted RF signal switching device with an electric motor and coaxial switch. Utility Model Content

[0003] This invention provides a pre-positioned radio frequency signal switching device for a coaxial switch of an electric motor, which solves the problems mentioned in the background art, such as the indirect connection between the coaxial switch and the main / backup transmitter, the complex device structure, the cumbersome switching between manual and electric switching states, the inconvenience of use, and the large space occupation.

[0004] This utility model provides the following technical solution: a front-mounted RF signal switching device for an electric motor coaxial switch, comprising an RF U-connector, a switching panel, an electric motor coaxial switch, and an HMI control panel. The electric motor coaxial switch is mounted on the front panel of the switching panel, and the RF U-connector is mounted on the lower part of the front panel. The RF U-connector and the electric motor coaxial switch are located on the same side of the switching panel, and the interface spacing of the electric motor coaxial switch is equal to the port spacing of the RF U-connector. The interfaces of the electric motor coaxial switch are respectively connected to a transmitter, a dummy load, and an antenna feeder.

[0005] Preferably, the RF U-connector is connected to the switching panel via an RF U-connector quick release and locking device.

[0006] Preferably, the coaxial switch for the electric motor is connected to the front panel of the switching panel via a quick release and locking device for the coaxial switch for the electric motor.

[0007] Preferably, the switching panel is made of metal and an insulating medium.

[0008] Preferably, the radio frequency U-connector is made of metal and an insulating medium.

[0009] Preferably, the coaxial switching switch for the electric motor is made of metal and an insulating medium.

[0010] Preferably, the metal includes silver, copper, aluminum, and steel; the insulating medium includes Teflon and PE.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This electric motor coaxial switch pre-positioned RF signal switching device controls the rotation of the electric motor coaxial switch to switch the connection between the main / backup transmitter and the antenna feeder and dummy load, thereby switching the RF signal of the transmission system. If the electric motor coaxial switch malfunctions, it can be manually removed using a quick-release and locking device, and the backup RF U-connector can be connected to the appropriate position, thus switching the RF signal transmission link of the transmission system and ensuring normal system operation.

[0013] 2. This electric motor coaxial switching device is a front-mounted radio frequency signal switching device. The electric motor coaxial switch is directly connected to the transmitter, dummy load, and antenna feeder. The switching device can quickly switch between manual and electric switching modes, improving ease of use.

[0014] 3. The electric motor coaxial switching switch front-end radio frequency signal switching device can save half the space compared with the solution proposed in the background technology above, so that two sets of this device can be installed in a set of cabinets. Attached Figure Description

[0015] Figure 1 This is a front view of the structure of Embodiment 1 of this utility model;

[0016] Figure 2 This is a left view of the structure of Embodiment 1 of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of Embodiment 1 of this utility model;

[0018] Figure 4 This is a top view of the structure of Embodiment 1 of this utility model;

[0019] Figure 5 This is a schematic diagram illustrating the normal operation principle of the system in Example 2;

[0020] Figure 6 This is a schematic diagram illustrating the normal operation of the system when the coaxial switching switch for the electric motor located at the top fails in Example 2.

[0021] Figure 7 This is a schematic diagram illustrating the normal operation of the system when the coaxial switching switch for the lower electric motor fails in Example 2.

[0022] Figure 8 This is a schematic diagram illustrating the normal operation of the system when both coaxial switching switches for the two electric motors in Example 2 fail.

[0023] Figure 9 This is a schematic diagram illustrating the normal operation principle of the system in Example 3;

[0024] Figure 10 This is a schematic diagram illustrating the normal operation of the system when the coaxial switching switch for the electric motor located at the top fails in Example 3.

[0025] Figure 11 This is a schematic diagram illustrating the normal operation of the system when the coaxial switching switch for the lower electric motor fails in Example 3.

[0026] Figure 12 This is a schematic diagram illustrating the normal operation of the system when both coaxial switching switches for the two electric motors in Example 3 fail.

[0027] Figure 13 This is a top view of the connection between the coaxial switch for the electric motor and the front panel of the switching panel in Example 1.

[0028] Figure 14This is a three-dimensional schematic diagram of the structure of Embodiment 1 of this utility model.

[0029] In the diagram: 1. RF U-connector; 2. Coaxial switch for electric motor; 3. Antenna feeder; 4. HMI control panel; 5. Switching panel; 6. Quick release and locking device for RF U-connector; 7. Quick release and locking device for coaxial switch for electric motor. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] This utility model provides a front-mounted RF signal switching device for an electric motor coaxial switch, including an RF U-connector 1, a switching panel 5, an electric motor coaxial switch 2, and an HMI control panel 4. The electric motor coaxial switch 2 is mounted on the front panel of the switching panel 5, and is connected to the front panel of the switching panel 5 via a quick-release and locking device 7. The quick-release and locking device 7 allows for quick assembly and disassembly of the electric motor coaxial switch 2. The RF U-connector 1 is mounted on the lower part of the front panel of the switching panel 5, and is connected to the switching panel 5 via the quick-release and locking device 6. The RF U-connector 1 and the electric motor coaxial switch 2 are located on the same side of the switching panel 5, and the quick-release and locking device 6 allows for quick assembly and disassembly of the RF U-connector 1.

[0032] The interface spacing of the coaxial switch 2 for electric motors is equal to the port spacing of the RF U-connector 1; the interfaces of the coaxial switch 2 for electric motors are respectively connected to the transmitter, the dummy load, and the antenna feeder 3.

[0033] The radio frequency U-connector 1 is made of metal (silver, copper, aluminum, steel) and insulating medium (Teflon, PE).

[0034] The coaxial switch 2 for electric motors is made of metal (silver, copper, aluminum, steel) and insulating medium (Teflon, PE).

[0035] The switching panel 5 is made of metal (silver, copper, aluminum, steel) and insulating medium (Teflon, PE).

[0036] The HMI control panel 4, the RF U-connector quick release and locking device 6, and the electric motor coaxial switch quick release and locking device 7 are all prior art. In some embodiments of this application, the RF U-connector quick release and locking device 6 and the electric motor coaxial switch quick release and locking device 7 are all thumb-type lockers.

[0037] The present application will be further described below through Embodiment 1.

[0038] In this embodiment 1, there are two coaxial switching switches 2 for electric motors, which are arranged vertically. The RF U-connector 1 is installed as a backup device below the front panel of the switching panel 5. Figures 1 to 4 , Figure 13 As shown. The interfaces of the coaxial switching switch 2 for electric motors are connected to transmitter 1 (Tx1), transmitter 2 (Tx2), and N (for connecting to the next switching system for cascading expansion or direct connection to transmitter 3 (Tx3), dummy load (Load), and antenna feeder 3.

[0039] Specific work process:

[0040] Example 2

[0041] When the coaxial switch 2 of the electric motor is in state one, the schematic diagram of the system operating normally is as follows: Figure 5 As shown, Tx1 → Electric motor coaxial switch 2 → Antenna feeder 3; Tx2 → Electric motor coaxial switch 2 → Antenna feeder 3; N → Electric motor coaxial switch 2 → Internal connection line → Electric motor coaxial switch 2 → Dummy load. Wherein: Tx1 is transmitter one, Tx2 is transmitter two (can be used as a backup transmitter), and N is for connecting to the next switching system for cascading expansion or directly connecting to transmitter three (Tx3).

[0042] When the upper-mounted coaxial switch 2 for the electric motor fails, the spare RF U-connector 1 can replace the failed coaxial switch 2 to ensure normal system operation. Figure 6 As shown, the connection relationship between the components at this time is as follows: Tx1 → RF U-connector 1 → Antenna feeder 3; Tx2 → Electric motor coaxial switch 2 → Antenna feeder 3; N → Electric motor coaxial switch 2 → Internal connection line → RF U-connector 1 → Dummy load Load.

[0043] When the lower-mounted coaxial switch 2 for the electric motor fails, the spare RF U-connector 1 can be used to replace the failed coaxial switch 2, ensuring normal system operation. Figure 7As shown, the connection relationship between the components at this time is as follows: Tx1 → electric motor coaxial switch 2 → antenna feeder 3; Tx2 → RF U-connector 1 → antenna feeder 3; N → RF U-connector 1 → internal connection line → electric motor coaxial switch 2 → dummy load Load.

[0044] When both coaxial switching switches 2 for the two electric motors fail simultaneously, the normal operating principle diagram of the system is as follows: Figure 8 As shown, Tx1 → RF U-connector 1 → Antenna feeder 3; Tx2 → RF U-connector 1 → Antenna feeder 3; N → RF U-connector 1 → Internal connection line → RF U-connector 1 → Dummy load.

[0045] Example 3

[0046] When the coaxial switch 2 of the electric motor is in state two, the schematic diagram of the system operating normally is as follows: Figure 9 As shown, Tx1 → Electric motor coaxial switch 2 → Dummy load Load; Tx2 → Electric motor coaxial switch 2 → Internal connection line → Electric motor coaxial switch 2 → Antenna feeder 3; N → Electric motor coaxial switch 2 → Antenna feeder 3.

[0047] When the upper-mounted coaxial switch 2 for the electric motor fails, the spare RF U-connector 1 replaces the failed coaxial switch 2, allowing the system to operate normally. The schematic diagram is as follows: Figure 10 As shown, Tx1 → RF U-connector 1 → Dummy load Load, Tx2 → Electric motor coaxial switch 2 → Internal connection line → RF U-connector 1 → Antenna feeder 3, N → Electric motor coaxial switch 2 → Antenna feeder 3.

[0048] When the lower-level coaxial switch 2 for the electric motor fails, the backup RF U-connector 1 replaces the failed coaxial switch 2, allowing the system to operate normally. The schematic diagram is as follows: Figure 11 As shown, Tx1 → electric motor coaxial switch 2 → dummy load Load, Tx2 → RF U-connector 1 → internal connection line → electric motor coaxial switch 2 → antenna feeder 3, N → RF U-connector 1 → antenna feeder 3.

[0049] When both coaxial switch 2 switches for electric motors fail simultaneously, the backup RF U-connector 1 replaces the failed coaxial switch 2, allowing the system to operate normally. The schematic diagram is as follows: Figure 12 As shown, Tx1 → RF U-connector 1 → Dummy load Load, Tx2 → RF U-connector 1 → Internal connection line → RF U-connector 1 → Antenna feeder 3, N → RF U-connector 1 → Antenna feeder 3.

[0050] The above description is merely one implementation example of this patent and is not intended to limit the scope of this patent. This patent can be extended to multi-level connections to achieve switching between multiple transmitters and multiple antenna feeders and dummy loads.

[0051] In summary, this application controls the rotation of the electric motor coaxial switch 2 to switch the connection between the main and backup transmitters and the antenna feeder and dummy load, thereby achieving the switching of the radio frequency signal of the transmission system. If the electric motor coaxial switch 2 malfunctions, it can be manually removed, and the backup radio frequency U-connector 1 can be connected to the corresponding position to switch the radio frequency signal transmission link of the transmission system and ensure normal system operation.

[0052] The contents not described in detail in this specification are prior art known to those skilled in the art. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric motor coaxial switch front mounted RF signal switching device comprising of RF U type connector (1), switching panel (5), electric motor coaxial switch (2) and HMI control panel (4), characterized in that: The front panel of the switching panel (5) is provided with an electric motor coaxial switching switch (2), the lower part of the front panel of the switching panel (5) is provided with a radio frequency U-shaped connector (1), the radio frequency U-shaped connector (1) and the electric motor coaxial switching switch (2) are located on the same side of the switching panel (5), and the interface spacing of the electric motor coaxial switching switch (2) is equal to the port spacing of the radio frequency U-shaped connector (1); the interfaces of the electric motor coaxial switching switch (2) are connected with a transmitter, a dummy load and a skywire (3) respectively.

2. A coaxial switch for electric motor pre-RF signal switching device according to claim 1, characterized in that: The radio frequency U-shaped connector (1) is connected with the switching panel (5) through a radio frequency U-shaped connector quick release and locking device (6).

3. A coaxial switch for electric motor pre-RF signal switching device according to claim 1, characterized in that: The electric motor coaxial switching switch (2) is connected with the front panel of the switching panel (5) through an electric motor coaxial switching switch quick release and locking device (7).

4. A coaxial switch for electric motor pre-RF signal switching device according to claim 1, characterized in that: The switching panel (5) is made of metal and insulating medium.

5. A coaxial switch for electric motor pre-RF signal switching device according to claim 1, characterized in that: The radio frequency U-shaped connector (1) is made of metal and insulating medium.

6. A coaxial switch for electric motor pre-RF signal switching device according to claim 1, characterized in that: The electric motor coaxial switching switch (2) is made of metal and insulating medium.

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