CN218828285U - Inner conductor, coaxial cable and microwave equipment - Google Patents
Inner conductor, coaxial cable and microwave equipment Download PDFInfo
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- CN218828285U CN218828285U CN202223280800.2U CN202223280800U CN218828285U CN 218828285 U CN218828285 U CN 218828285U CN 202223280800 U CN202223280800 U CN 202223280800U CN 218828285 U CN218828285 U CN 218828285U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
Abstract
The utility model provides an inner conductor, coaxial cable and microwave equipment belongs to the microwave transmission field. The inner conductor comprises a first inner conductor, a second inner conductor and an inner elastic piece, a concave part is arranged on the end face of the first inner conductor, and a convex part is arranged on the end face of the second inner conductor; the convex portion extends into the concave portion. The inner elastic piece is arranged in the concave part, and two ends of the inner elastic piece are respectively connected with the first inner conductor and the second inner conductor; the elastic force of the inner elastic piece enables the matching end face of the first inner conductor to be abutted with the matching end face of the second inner conductor. The coaxial cable comprises an outer conductor, a dielectric layer and an inner conductor; the outer conductor, the inner conductor and the dielectric layer are connected by two mutually independent parts, and the joint can swing around an axis, so that the whole coaxial cable can absorb certain torsional deformation; thereby avoiding the deformation or damage of the inner conductor under the action of torsional force; moreover, the design does not affect the transmission performance of the coaxial cable.
Description
Technical Field
The utility model relates to a microwave transmission field, concretely relates to inner conductor, coaxial cable and microwave equipment.
Background
In microwave equipment, microwaves generated by a microwave source are generally transmitted through a coaxial cable, and two ends of the coaxial cable are generally fixedly connected with the microwave source and a reaction device. In some occasions, the installation position of the reaction device needs to be adjusted, and at the moment, if the coaxial cable is dismounted from the reaction device and then is installed again, the operation is troublesome; if the coaxial cable is not adjusted, the installation position of the reaction device is directly adjusted, which may cause the coaxial cable to be twisted, thereby causing local deformation of the coaxial cable to influence the transmission performance of the coaxial cable, and seriously causing damage to the coaxial cable. Therefore, it is necessary to minimize torsional deformation of the coaxial cable when adjusting the installation position of the reaction device.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an inner conductor and coaxial cable, it can twist reverse at the certain limit, and then adapts to different mounted positions.
Another object of the present invention is to provide a microwave device, which employs the above inner conductor and a twistable coaxial cable.
The utility model discloses a realize like this:
an inner conductor, comprising:
the matching end face of the first inner conductor is provided with a concave part, and the concave part extends along the axis of the first inner conductor;
the matching end face of the second inner conductor is provided with a convex part, and the convex part extends along the axis of the second inner conductor; the convex part extends into the concave part;
an inner elastic member disposed in the recess, one end of the inner elastic member being connected to the first inner conductor and the other end thereof being connected to the second inner conductor;
the elastic force of the inner elastic piece enables the matching end face of the first inner conductor to be abutted with the matching end face of the second inner conductor.
Furthermore, the concave part is a cylindrical counter bore and comprises a counter bore and a mounting blind hole, an inner annular plate is arranged in the counter bore, and the inner annular plate is connected with the first inner conductor;
the convex part is in a cylindrical rod shape and can slidably penetrate through the middle through hole of the inner annular plate, and an inner baffle is arranged at the end part of the convex part;
the inner elastic element is sleeved on the convex part, one end of the inner elastic element is in low butt joint with the inner annular plate, and the other end of the inner elastic element is in butt joint with the inner baffle.
Further, the inner annular plate is detachably connected with the second inner conductor, and the inner baffle is detachably connected with the convex part.
Further, a guide rod is arranged at the bottom of the concave part and is coaxial with the first inner conductor; the convex part is provided with a guide hole, and the guide hole and the second inner conductor are coaxially arranged.
Furthermore, a strip-shaped groove extending along the length direction of the guide rod is arranged on the guide rod.
Further, the coaxial cable comprises an outer conductor, a dielectric layer and the inner conductor;
the medium layer is sleeved on the inner conductor, and the outer conductor is of a tubular structure and sleeved on the medium layer.
Furthermore, the outer conductor comprises a first outer conductor, a second outer conductor and an outer elastic piece, wherein the end part of the first outer conductor is provided with a splicing pipe, and the end part of the second outer conductor is provided with a coaxial expanding hole; the inserting pipe is inserted in the diameter expanding hole;
one end of the external elastic piece is connected with the first external conductor, and the other end of the external elastic piece is connected with the second external conductor;
the elastic force of the external elastic piece enables the first outer conductor and the second outer conductor to be abutted.
Furthermore, an outer baffle plate is arranged at the end part of the plug pipe, an outer annular plate is arranged at the end part of the second outer conductor, the plug pipe is sleeved with the outer elastic element, one end of the outer elastic element is abutted against the outer baffle plate, and the other end of the outer elastic element is abutted against the outer annular plate;
the outer baffle abuts against the bottom of the diameter-expanding hole, or the outer annular plate abuts against the end of the first outer conductor.
Furthermore, the outer baffle is detachably connected with the inserting pipe, and the outer annular plate is detachably connected with the second outer conductor.
Furthermore, the diameter expanding hole is a tapered hole, the diameter of the tapered hole is gradually reduced from outside to inside, the outer baffle is a tapered plate, and the tapered surface of the outer baffle is matched with the inner surface of the diameter expanding hole.
The microwave equipment comprises a microwave source, a reaction device and the coaxial cable, wherein the microwave source is connected with the reaction device through the coaxial cable.
The beneficial effects of the utility model include following aspect at least:
when the inner conductor and the coaxial cable are used, when the coaxial cable is subjected to torsional force due to the change of the relative position between the reaction device and the microwave source, the first inner conductor and the second inner conductor can rotate around the axes of the first inner conductor and the second inner conductor by a certain angle; similarly, the two parts of the outer conductor and the two parts of the dielectric layer can rotate relatively. Therefore, the microwave coaxial cable can avoid deformation or damage under the action of torsional force; and further, the coaxial cable can keep good transmission performance.
After the microwave equipment adopts the coaxial cable, the coaxial cable is not required to be detached when the relative position of the microwave source and the reaction device is changed, so that the whole operation is more convenient.
Drawings
Fig. 1 is a schematic structural diagram of a coaxial cable according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an inner conductor provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another inner conductor according to an embodiment of the present invention.
Icon: 010-coaxial cable; 100-an inner conductor; 110 — a first inner conductor; 112-a recess; 1121-counter bore; 1122-installing blind holes; 120-a second inner conductor; 122-a convex portion; 130-an inner elastic member; 140-an inner baffle; 150-an inner annular plate; 200-an outer conductor; 210-a first outer conductor; 211-a bayonet tube; 220-a second outer conductor; 221-a diameter-expanding hole; 230-an outer elastic member; 240-outer baffle; 250-an outer annular plate; 300-dielectric layer.
Detailed Description
Example (b):
as shown in fig. 1, the present embodiment provides a coaxial cable 010, which includes an inner conductor 100, a dielectric layer 300, and an outer conductor 200; wherein the inner conductor 100 is cylindrical, and the outer conductor 200 and the dielectric layer 300 are both circular tubular; the dielectric layer 300 is sleeved on the inner conductor 100, the outer conductor 200 is sleeved on the dielectric inner conductor 100, and the dielectric layer 300 is located between the inner conductor and the outer conductor. Moreover, the outer conductor 200, the inner conductor 100 and the dielectric layer 300 are connected by two independent parts, and the connection part can rotate around the base axis in a certain range, so that the whole coaxial cable 010 can absorb certain torsional deformation.
Referring to fig. 2, the inner conductor 100 includes a first inner conductor 110, a second inner conductor 120, and an inner elastic member 130. The first inner conductor 110 and the second inner conductor 120 are both cylindrical and are abutted by mating end faces. The mating end surface of the first inner conductor 110 is provided with a concave part 112 extending along the axis of the first inner conductor, and the mating end surface of the second inner conductor 120 is provided with a convex part 122 extending along the axis of the second inner conductor; the convex portion 122 extends into the concave portion 112. The inner resilient member 130 is made of a resiliently deformable material, such as rubber, spring steel. The inner elastic member 130 is disposed in the concave portion 112 and sleeved on the convex portion 122, and two ends of the inner elastic member 130 are connected (fixedly connected or abutted) to the first inner conductor 110 and the second inner conductor 120, respectively. The elastic force generated by the inner elastic member 130 causes the convex portion 122 to have a tendency to move further toward the inside of the concave portion 112, so that the two mating end surfaces of the first inner conductor 110 and the second inner conductor 120 are reliably abutted, thereby minimizing the influence of splicing on the transmission performance.
The first inner conductor 110 and the second inner conductor 120 are two independent parts which can rotate around the axes thereof; in addition, since the inner elastic member 130 itself can be elastically deformed about its axis; therefore, the above design can avoid torsional deformation of the inner conductor 100.
In this embodiment, the convex portion 122 is a cylindrical rod-shaped structure coaxially disposed with the first inner conductor 110, and the concave portion 112 is a cylindrical blind hole; the inner elastic member 130 employs a compression spring. In other embodiments, the structures of the convex portion 122 and the concave portion 112 are not limited thereto as long as the installation of the inner elastic member 130 can be facilitated; the inner elastic member 130 may also be formed in a cylindrical structure made of rubber.
Specifically, the recess 112 is a cylindrical counter bore including a counter bore 1121 and a blind mounting hole 1122 which are coaxially arranged, and an internal annular plate 150 is arranged in the counter bore 1121, the internal annular plate 150 is connected to the bottom of the counter bore 1121 through a screw, and the thickness of the internal annular plate 150 is smaller than the depth of the counter bore 1121, so that the mating end faces of the first inner conductor 110 and the second inner conductor 120 can be reliably contacted. The inner diameter of the central through hole of the inner annular plate 150 is smaller than the inner diameter of the blind mounting hole 1122, thereby enabling the inner annular plate 150 to abut the end of the inner resilient member 130.
The protrusion 122 passes through the central through hole of the inner annular plate 150, and the diameter of the protrusion 122 is smaller than the inner diameter of the central through hole of the inner annular plate 150. The end of the convex portion 122 is provided with an inner baffle 140, and the inner baffle 140 is detachably connected with the convex portion 122 through a screw. After the inner elastic member 130 is sleeved on the convex portion 122, one end of the inner elastic member abuts against the inner annular plate 150, and the other end abuts against the inner baffle 140; the elastic force of the inner elastic member 130 pushes the second inner conductor 120 toward the first inner conductor 110, so that the mating end surfaces of the two can be effectively abutted.
In addition, the bottom of the mounting blind hole 1122 is provided with a jack, which extends along the first conductor axis; correspondingly, the end face of the convex part 122 is provided with a guide hole; be provided with the guide bar in the spliced eye, the both ends of guide bar all are provided with the chamfer. When the convex portion 122 of the second inner conductor 120 is fitted to the concave portion 112 of the first inner conductor 110, the outer end of the guide rod is inserted into the guide hole, so that the first inner conductor 110 and the second inner conductor 120 are coaxial.
When the guide rod is assembled in the guide hole, if gas in the guide hole cannot be discharged in time, the guide rod can be assembled difficultly; therefore, the side wall of the convex portion 122 is provided with a vent hole, which communicates with the guide hole. Or, a strip-shaped groove can be formed in the side wall of the guide rod or the inner wall of the guide hole and extends along the length of the guide rod; at the moment, the gas in the plugging hole or the guide hole can be discharged in time.
The method for assembling the first inner conductor 110 and the second inner conductor 120 is as follows:
firstly, the inner annular plate 150 is sleeved on the convex part 122, and the inner elastic element 130 is sleeved on the convex part 122, so that one end of the inner elastic element is abutted against the inner annular plate 150; then, the inner barrier 140 is connected to the end of the protrusion 122, and both ends of the inner elastic member 130 abut against the inner barrier 140 and the inner annular plate 150, respectively. Finally, the protrusion 122 is inserted into the recess 112, and an L-shaped wrench is inserted between the first inner conductor 110 and the second inner conductor 120, thereby fixing the inner annular plate 150 to the first inner conductor 110.
The outer conductor 200 includes an outer spring 230, a first outer conductor 210, and a second outer conductor 220. The end of the first outer conductor 210 is provided with a plug pipe 211, the end of the second outer conductor 220 is provided with a diameter-expanding hole 221, the axis of the diameter-expanding hole 221 coincides with the axis of the second outer conductor 220, and the diameter of the diameter-expanding hole 221 is larger than the inner hole diameter of the second outer conductor 220. The insertion pipe 211 is inserted into the diameter-enlarged hole 221, and the insertion pipe 211 and the diameter-enlarged hole 221 are coaxially arranged. In addition, the external elastic member 230 is disposed on the insertion tube 211, and has one end connected to the first external conductor 210 and the other end connected to the second external conductor 220. The end of the first outer conductor 210 and the end of the second outer conductor 220 are brought into contact with each other by the elastic force of the outer elastic member 230.
In this embodiment, the end of the insertion tube 211 is provided with an outer baffle 240, and the outer baffle 240 is detachably connected to the insertion tube 211 by a screw; an end portion of the second outer conductor 220 is provided with an outer annular plate 250, and the outer annular plate 250 is detachably coupled to the end portion of the second outer conductor 220 by a screw. The outer elastic member 230 is a compression spring having one end abutting against the outer retainer 240 and the other end abutting against the outer annular plate 250. Under the urging force of the external elastic member 230, the outer baffle 240 abuts against the bottom of the diameter-enlarged hole 221.
The first outer conductor 210 and the second outer conductor 220 are assembled in a similar manner to the first inner conductor 110 and the second inner conductor 120, and the outer annular plate 250 is connected to the end of the second outer conductor 220 by using an L-shaped wrench.
Since the first inner conductor 110 and the second inner conductor 120 are connected by the inner elastic member 130, the first outer conductor 210 and the second outer conductor 220 are connected by the outer elastic member 230, and the dielectric layer 300 is also divided into two independent portions; therefore, when the coaxial cable 010 is subjected to a torsional force, the two portions of the inner conductor 100, the two portions of the outer conductor 200 and the two portions of the dielectric layer 300 can relatively rotate around their own axes. At this time, since the two portions of the inner conductor 100, the two portions of the outer conductor 200, and the two portions of the dielectric layer 300 can still be effectively contacted, the whole coaxial cable 010 is not deformed by twisting, and the transmission performance thereof is not affected by twisting.
It should be noted that, in other embodiments, as shown in fig. 3, for convenience of assembly, the connection manner of the internal annular plate 150 and the first inner conductor 110 may be changed as appropriate, for example, a threaded hole may be formed on the outer circumferential surface of the internal ring, a countersunk hole may be formed on the outer surface of the first inner conductor, and the internal annular plate may be fixed by a screw. In addition, in other embodiments, the inner elastic member 130 may also be an extension spring, in which case, two ends of the inner elastic member 130 are respectively connected to the first inner conductor 110 and the second inner conductor 120, and the tension of the inner elastic member 130 connects the first inner conductor 110 and the second inner conductor 120 together; while the tension spring may undergo some torsional deformation, relative rotation between the first inner conductor 110 and the second inner conductor 120 is still possible. Similarly, the external elastic member may employ a tension spring.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An inner conductor for a coaxial cable, comprising:
the end face of the first inner conductor is provided with a concave part, and the concave part extends along the axis of the first inner conductor;
the end face of the second inner conductor is provided with a convex part, and the convex part extends along the axis of the second inner conductor; the convex part extends into the concave part;
the inner elastic piece is arranged in the concave part, and two ends of the inner elastic piece are respectively connected with the first inner conductor and the second inner conductor;
the elastic force of the inner elastic piece enables the matching end face of the first inner conductor to be abutted with the matching end face of the second inner conductor.
2. An inner conductor according to claim 1, wherein:
the concave part is a counter bore and comprises a counter bore and a mounting blind hole, an inner annular plate is arranged in the counter bore, and the inner annular plate is connected with the first inner conductor;
the convex part is in a cylindrical rod shape and can slidably penetrate through the middle through hole of the inner annular plate, and an inner baffle is arranged at the end part of the convex part;
the inner elastic element is sleeved on the convex part, one end of the inner elastic element is abutted with the inner annular plate, and the other end of the inner elastic element is abutted with the inner baffle.
3. An inner conductor according to claim 2, wherein:
the inner annular plate is detachably connected with the second inner conductor, and the inner baffle is detachably connected with the convex part.
4. An inner conductor according to claim 1, wherein:
the bottom of the concave part is provided with a guide rod which is coaxial with the first inner conductor; the convex part is provided with a guide hole, and the guide hole and the second inner conductor are coaxially arranged.
5. An inner conductor according to claim 4, wherein:
the guide rod is provided with a strip-shaped groove extending along the length direction of the guide rod.
6. An inner conductor according to claim 4, wherein:
chamfers are arranged at two ends of the guide rod.
7. A coaxial cable comprising an outer conductor, a dielectric layer, and an inner conductor according to any one of claims 1-6;
the outer conductor is sleeved on the dielectric layer, and the dielectric layer is located between the inner conductor and the outer conductor.
8. A coaxial cable as defined in claim 7, wherein:
the external conductor comprises a first external conductor, a second external conductor and an external elastic piece, wherein the end part of the first external conductor is provided with a plug-in pipe, and the end part of the second external conductor is provided with a coaxial expanding hole; the inserting pipe is inserted in the diameter expanding hole;
one end of the external elastic piece is connected with the first external conductor, and the other end of the external elastic piece is connected with the second external conductor;
the elastic force of the external elastic piece enables the first outer conductor and the second outer conductor to be abutted.
9. A coaxial cable as defined in claim 8, wherein:
an outer baffle plate is arranged at the end part of the plug pipe, an outer annular plate is arranged at the end part of the second outer conductor, the outer elastic element is sleeved on the plug pipe, one end of the outer elastic element is abutted against the outer baffle plate, and the other end of the outer elastic element is abutted against the outer annular plate; the outer baffle is abutted against the bottom of the expanding hole.
10. A microwave device comprising a microwave source and a coaxial cable according to any of claims 7-9, the microwave source being connected to the coaxial cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223280800.2U CN218828285U (en) | 2022-12-07 | 2022-12-07 | Inner conductor, coaxial cable and microwave equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223280800.2U CN218828285U (en) | 2022-12-07 | 2022-12-07 | Inner conductor, coaxial cable and microwave equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218828285U true CN218828285U (en) | 2023-04-07 |
Family
ID=87250966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223280800.2U Active CN218828285U (en) | 2022-12-07 | 2022-12-07 | Inner conductor, coaxial cable and microwave equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218828285U (en) |
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2022
- 2022-12-07 CN CN202223280800.2U patent/CN218828285U/en active Active
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