CN218448393U - Electromagnetic driving device and microwave switch - Google Patents
Electromagnetic driving device and microwave switch Download PDFInfo
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- CN218448393U CN218448393U CN202222996588.3U CN202222996588U CN218448393U CN 218448393 U CN218448393 U CN 218448393U CN 202222996588 U CN202222996588 U CN 202222996588U CN 218448393 U CN218448393 U CN 218448393U
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- iron core
- connecting rod
- spring
- microwave switch
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Abstract
The utility model relates to a microwave switch technical field discloses electromagnetic drive device and microwave switch, electromagnetic drive device includes coil former, coil, first spring, upper quiet iron core, moves iron core down, the coil cover is on the coil former, be equipped with the passageway in the coil former, upper quiet iron core is installed on the upper portion of passageway, move iron core slidable down and set up in the passageway, and in upper quiet iron core below, upper quiet iron core and move iron core down and be equipped with the stop part respectively, first spring housing is on upper quiet iron core and moving iron core down, the both ends of first spring support the stop part of upper quiet iron core and the stop part of moving iron core down respectively; still include bottom plate, second spring and connecting rod, seted up the mounting groove on the bottom plate, the coil former is installed in mounting groove department, and the connecting rod moves the iron core below down, and the connecting rod passes the bottom plate from mounting groove department, and the second spring housing is on the connecting rod, and the both ends of second spring support the upper end of connecting rod and the bottom of mounting groove respectively.
Description
Technical Field
The utility model relates to a microwave switch technical field, concretely relates to electromagnetic drive device and microwave switch.
Background
At present, a microwave switch can be used in the field of radio frequency to realize channel switching of radio frequency signals, the microwave switch can be divided into an electromechanical relay microwave switch and a solid-state microwave switch according to different working principles, microwave switch channels in most of the existing electromechanical solenoid relay microwave switches are disconnected when not powered on, and the switching-on and switching-off of other microwave switch channels of a certain microwave switch channel can not be realized under the power-off state, so that the use requirements of the microwave switch in certain specific occasions can not be met.
Although the electromagnetic driving device and the self-reset microwave switch disclosed in the patent No. CN216288877U have the advantages that the upper static iron core is arranged at the upper part in the channel of the coil frame, the lower movable pasting core is sequentially arranged in the channel from top to bottom, and the spring is arranged between the upper static iron core and the lower movable iron core, when the coil on the coil frame is not connected with excitation, the lower movable iron core moves downwards under the action of the spring, and when the slide bar is connected with the connecting piece for driving the microwave switch channel of the microwave switch to be switched on or off, the slide bar moves downwards to drive the corresponding microwave switch channel to be switched on; when the coil is connected into an excitation to generate a magnetic field, attraction force can be generated between the upper static iron core and the lower movable iron core, the attraction force overcomes the elastic force of the spring to drive the lower movable iron core to move upwards, and then the connecting piece connected with the sliding rod is driven to move upwards, so that the corresponding microwave switch channel is disconnected, and the microwave switch channel is switched on without excitation.
However, the electromagnetic driving device has the following defects in practical use:
1. the lower movable iron core, the sliding rod and the connecting rod are fixedly connected, so that the assembly efficiency is low, and the subsequent maintenance is inconvenient;
2. the connecting rod is made of a medium material, so that the connecting rod is soft in texture and easy to wear, the cross section of the sliding rod is small, the contact area of the sliding rod and the connecting rod is small, and the connecting rod is easy to damage in actual use;
3. when the microwave switch channel is disconnected by electrifying, an air gap exists between the lower static iron core and the upper movable iron core, the magnetic circuit is not closed, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
In view of the not enough of background art, the utility model provides an electromagnetic drive device and microwave switch, the technical problem that solve is that there is assembly efficiency low in current electromagnetic drive device, is unfavorable for maintaining and connecting rod fragile.
For solving above technical problem, the first aspect, the utility model provides a following technical scheme: the electromagnetic driving device comprises a coil frame, a coil, a first spring, an upper static iron core and a lower movable iron core, wherein the coil is sleeved on the coil frame, a channel is arranged in the coil frame, the upper static iron core is arranged at the upper part of the channel, the lower movable iron core is arranged in the channel in a sliding way and is arranged below the upper static iron core, blocking parts are respectively arranged on the upper static iron core and the lower movable iron core, the first spring is sleeved on the upper static iron core and the lower movable iron core, and two ends of the first spring respectively abut against the blocking parts of the upper static iron core and the blocking parts of the lower movable iron core;
still include bottom plate, second spring and connecting rod, the mounting groove has been seted up on the bottom plate, the coil former is installed mounting groove department, the connecting rod is in move the iron core below down, the connecting rod is followed mounting groove department passes the bottom plate, the second spring housing is in on the connecting rod, the both ends of second spring support respectively the upper end of connecting rod with the bottom of mounting groove.
In a certain embodiment of the first aspect, opposite ends of the upper stationary core and the lower movable core are stepped, and two ends of the first spring respectively abut against a step surface of the upper stationary core and a step surface of the lower movable core.
In certain embodiment of the first aspect, the utility model discloses still include down and control iron and last iron, control iron down and install the top of bottom plate, control iron down and control iron and last iron and pass through the magnetic conductivity bracing piece and be connected, the coil former is installed control iron down, the coil is located control iron and control down between the iron.
In a certain embodiment of the first aspect, a bottom portion of the bobbin is located within the mounting groove.
The utility model discloses an electromagnetic drive device's work flow as follows: when the coil is not connected to excitation, the lower movable iron core moves downwards under the action of the first spring, so that the second spring is compressed and the connecting rod is driven to move downwards; when the coil is connected into an excitation to generate a magnetic field, attraction force can be generated between the upper static iron core and the lower movable iron core, the attraction force overcomes the elastic force of the first spring to drive the lower movable iron core to move upwards, and the second spring can drive the connecting rod to move upwards under the action of the second spring without the acting force of the first spring, so that the corresponding microwave switch channel is disconnected.
In a second aspect, the present invention further provides a microwave switch, including the electromagnetic driving device and the base, where the base is provided with at least two microwave switch channels, and each microwave switch channel includes a radio frequency reed for controlling the microwave switch channel to be turned on or off;
the bottom plate is positioned at the top of the base, an installation groove is formed in the bottom plate at the position corresponding to each radio frequency reed, the electromagnetic driving device is installed in one installation groove, and the bottom of the connecting rod is connected with the radio frequency reeds;
second electromagnetic driving device is installed respectively to all the other mounting grooves, second electromagnetic driving device includes second slide bar, second connecting rod, third spring, coil pack and is located coil pack's last movable iron core and quiet iron core down, go up movable iron core with second sliding rod connection, the second slide bar passes quiet iron core down with the second connecting rod is connected, the second connecting rod is connected with the radio frequency reed that corresponds, the both ends of third spring support respectively the second connecting rod with the bottom of all the other mounting grooves.
In one embodiment of the second aspect, the microwave switch channel further comprises a first input terminal and a second input terminal, and the rf reed is above the first input terminal and the second input terminal.
Compared with the prior art, the utility model the beneficial effect who has is:
firstly, by using the electromagnetic driving device of the utility model on the microwave switch, when the whole microwave switch is not excited, the electromagnetic driving device of the utility model can drive one path of microwave switch channel to be conducted, and when the microwave switch is normally used by being excited, only one path of microwave switch channel is conducted, therefore, the microwave switch of the utility model can realize that only one path of microwave switch channel is conducted when the excitation is accessed or not; and the microwave switch channel driven by the utility model can be used as the default initial position;
secondly, the connecting rod is driven up and down by the cooperation of a first spring and a second spring, the bottom of the lower movable iron core is contacted with the top of the connecting rod, and the sliding rod does not penetrate through the lower movable iron core to be contacted with the connecting rod, so that the contact area of a driven surface of the connecting rod can be increased, and the connecting rod is prevented from being damaged easily;
finally, during assembly, the connecting rod, the second spring, the lower movable iron core, the first spring and the upper static iron core are installed according to the assembly process without fixedly connecting the components, so that the assembly process is simplified.
Drawings
FIG. 1 is a schematic structural diagram of an electromagnetic driving device in an embodiment;
FIG. 2 is a schematic structural diagram of a microwave switch in an embodiment;
fig. 3 is a schematic structural diagram of a second electromagnetic driving device in the embodiment.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1, the electromagnetic driving device includes a coil rack 1, a coil, a first spring 3, an upper stationary iron core 2, and a lower movable iron core 4; the coil is sleeved on the coil frame 1, a channel is arranged in the coil frame 1, the upper static iron core 2 is installed on the upper portion of the channel, the lower movable iron core 4 is arranged in the channel in a sliding mode, blocking portions are arranged on the upper static iron core 2 and the lower movable iron core 4 below the upper static iron core 2 respectively, the first spring 3 is sleeved on the upper static iron core 2 and the lower movable iron core 4, and two ends of the first spring 3 respectively abut against the blocking portions of the upper static iron core 2 and the blocking portions of the lower movable iron core 4;
still include bottom plate 7, second spring 6 and connecting rod 5, seted up the mounting groove on the bottom plate 7, coil former 1 is installed in mounting groove department, and connecting rod 5 moves iron core 4 below under, and connecting rod 5 passes bottom plate 7 from the mounting groove, and second spring 6 overlaps on connecting rod 5, and the both ends of second spring 6 support the upper end of connecting rod 5 and the bottom of mounting groove respectively.
Specifically, in this embodiment, the opposite ends of the upper stationary iron core 2 and the lower movable iron core 4 are step-shaped, and the two ends of the first spring 3 respectively abut against the step surface of the upper stationary iron core 2 and the step surface of the lower movable iron core 4.
In a certain embodiment of the first aspect, the present invention further comprises a lower iron 19 and an upper iron 18, wherein the lower iron 19 is mounted on the top of the bottom plate 7, the lower iron 19 and the upper iron 18 are connected by a magnetic conductive support rod, the coil frame 2 is mounted on the lower iron 19, and the coil is located between the upper iron 18 and the lower iron 19.
Specifically, in the present embodiment, the bottom of the bobbin 1 is located in the mounting groove.
The utility model discloses an electromagnetic drive device's work flow as follows: when the coil is not connected to excitation, the lower movable iron core 4 moves downwards under the action of the first spring 3, so that the second spring 6 is compressed and the connecting rod 5 is driven to move downwards, and when the connecting rod 5 is connected with a radio frequency reed for driving a microwave switch channel of the microwave switch to be switched on or switched off, the connecting rod 5 moves downwards to drive the corresponding microwave switch channel to be switched on; when the coil is connected into an excitation to generate a magnetic field, attraction force can be generated between the upper static iron core 2 and the lower movable iron core 4, the attraction force overcomes the elastic force of the first spring 3 to drive the lower movable iron core 4 to move upwards, and at the moment, the second spring 6 can drive the connecting rod 5 to move upwards under the action of the force without the first spring 3, so that the corresponding microwave switch channel is disconnected.
In practical use, the upper and lower driving of the connecting rod 5 of the electromagnetic driving device of the utility model is completed by the cooperation of the first spring 3 and the second spring 6, and the bottom of the lower movable iron core 4 is contacted with the top of the connecting rod 5, rather than the slide rod passing through the lower movable iron core to be contacted with the connecting rod, so that the contact area of the driven surface of the connecting rod 5 can be increased, and the connecting rod 5 is prevented from being damaged easily;
in addition, during assembly, the connecting rod 5, the second spring 6, the lower movable iron core 4, the first spring 3 and the upper static iron core 2 are only required to be installed according to the assembly process, and the components in the connecting rod are not required to be fixedly connected, so that the assembly process is simplified.
As shown in fig. 2, the present invention further provides a microwave switch, which includes the electromagnetic driving device and the base 8, wherein the base 8 is provided with two microwave switch channels, and each microwave switch channel includes a radio frequency reed 9 for controlling the microwave switch channel to be turned on or off;
the bottom plate 7 is positioned at the top of the base 8, mounting grooves 10 are formed in the bottom plate 7 at positions corresponding to the radio-frequency reeds 9, an electromagnetic driving device is mounted in one mounting groove 10, and the bottoms of the connecting rods 5 are connected with the radio-frequency reeds 9;
and the rest of the mounting grooves 10 are respectively provided with a second electromagnetic driving device, referring to fig. 3, each second electromagnetic driving device comprises a second sliding rod 13, a second connecting rod 15, a third spring 16, a coil assembly 11, an upper movable iron core 14 and a lower fixed iron core 12 which are positioned in the coil assembly, the upper movable iron core 14 is connected with the second sliding rod 13, the second sliding rod 13 penetrates through the lower fixed iron core 12 to be connected with the second connecting rod 15, the second connecting rod 15 is connected with the corresponding radio frequency reed 9, and two ends of the third spring 16 are respectively abutted against the second connecting rod 16 and the bottoms of the rest of the mounting grooves 10.
In practical use, for the second electromagnetic driving device, when the coil assembly 11 is not powered on, there is no attraction force between the upper movable iron core 14 and the lower stationary iron core 12, and the second connecting rod 15 is lifted upwards under the action of the third spring 16, so that the radio frequency reed 9 is lifted, and the corresponding microwave switch channel is turned off. When the coil assembly 11 is powered on, an attractive force is generated between the upper movable iron core 14 and the lower fixed iron core 12, and the attractive force drives the second sliding rod 13 to move downwards, so that the radio frequency reed 9 descends, and a corresponding microwave switch channel is switched on.
Specifically, in the present embodiment, the microwave switch channel further includes a first input connector 18 and a second input connector 17, and the rf reed 9 is above the first input connector 18 and the second input connector 17. The microwave switch in fig. 2 comprises two microwave switch channels, which share a first input connection 18.
In a certain embodiment, the number of the microwave switch channels of the microwave switch is M, where M is greater than or equal to three and is a positive integer, and the number of the microwave switch channels may be specifically set according to actual requirements. The M microwave switch channels comprise M +1 input connectors in total, wherein one input connector is a public connector, and one input connector of the rest M input connectors is two input connectors of the microwave switch channels; the break-make of one of them microwave switch passageway is by the utility model discloses an electromagnetic drive device control, the break-make of all the other microwave switch passageways is controlled by second electromagnetic drive device respectively.
When the microwave switch is used in practice, the electromagnetic driving device of the utility model can drive one path of microwave switch channel to be conducted when the whole microwave switch is not excited, and the microwave switch is only conducted when the microwave switch is normally used by excitation, therefore, the microwave switch of the utility model can realize that only one path of microwave switch channel is conducted when the microwave switch is accessed with or without excitation; and can be with the utility model discloses driven microwave switch passageway is as acquiescence initial position.
In light of the above, the present invention is to be construed as being applicable to various changes and modifications within the scope of the present invention as defined by the appended claims. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The electromagnetic driving device comprises a coil frame, a coil, a first spring, an upper static iron core and a lower movable iron core, wherein the coil is sleeved on the coil frame, a channel is arranged in the coil frame, the upper static iron core is arranged at the upper part of the channel, the lower movable iron core is arranged in the channel in a sliding way and is arranged below the upper static iron core, blocking parts are respectively arranged on the upper static iron core and the lower movable iron core, the first spring is sleeved on the upper static iron core and the lower movable iron core, and two ends of the first spring respectively abut against the blocking parts of the upper static iron core and the blocking parts of the lower movable iron core; the coil rack is characterized by further comprising a bottom plate, a second spring and a connecting rod, wherein a mounting groove is formed in the bottom plate, the coil rack is mounted at the mounting groove, the connecting rod is arranged below the lower movable iron core and penetrates through the mounting groove, the second spring is sleeved on the connecting rod, and two ends of the second spring respectively abut against the upper end of the connecting rod and the bottom of the mounting groove.
2. The electromagnetic driving device according to claim 1, wherein the opposite ends of the upper stationary core and the lower movable core are step-shaped, and two ends of the first spring respectively abut against the step surface of the upper stationary core and the step surface of the lower movable core.
3. The electromagnetic driving device according to claim 1, further comprising a lower yoke and an upper yoke, the lower yoke being mounted on the top of the base plate, the lower yoke being connected to the upper yoke via a magnetically permeable support rod, the bobbin being mounted on the lower yoke, and the coil being located between the upper yoke and the lower yoke.
4. The electromagnetic drive of claim 1, wherein a bottom portion of the bobbin is located within the mounting slot.
5. The microwave switch is characterized by comprising the electromagnetic driving device and a base as claimed in any one of claims 1 to 4, wherein at least two microwave switch channels are arranged on the base, and each microwave switch channel comprises a radio frequency reed for controlling the microwave switch channel to be switched on or switched off; the bottom plate is positioned at the top of the base, an installation groove is formed in the bottom plate at the position corresponding to each radio frequency reed, the electromagnetic driving device is installed in one installation groove, and the bottom of the connecting rod is connected with the radio frequency reeds; second electromagnetic driving device is installed respectively to all the other mounting grooves, second electromagnetic driving device includes second slide bar, second connecting rod, third spring, coil pack and is located coil pack's last movable iron core and quiet iron core down, go up movable iron core with second sliding bar connection, the second slide bar passes quiet iron core down with the second connecting rod is connected, the second connecting rod is connected with the radio frequency reed that corresponds, the both ends of third spring support respectively the second connecting rod with the bottom of all the other mounting grooves.
6. A microwave switch in accordance with claim 5 wherein the microwave switch channel further comprises a first input connection and a second input connection, the RF reed being above the first input connection and the second input connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222996588.3U CN218448393U (en) | 2022-11-10 | 2022-11-10 | Electromagnetic driving device and microwave switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222996588.3U CN218448393U (en) | 2022-11-10 | 2022-11-10 | Electromagnetic driving device and microwave switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218448393U true CN218448393U (en) | 2023-02-03 |
Family
ID=85074908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222996588.3U Active CN218448393U (en) | 2022-11-10 | 2022-11-10 | Electromagnetic driving device and microwave switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218448393U (en) |
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2022
- 2022-11-10 CN CN202222996588.3U patent/CN218448393U/en active Active
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