Conductor assembly
By designing a conductor assembly including a tubular conductor and a connecting conductor, using the cooperation of the sliding rod and the tapered through hole, radial force is applied and the connection is stable through negative pressure adsorption, the problem of insolid conductor connection in the prior art is solved, and a more reliable connection effect is achieved.
Patent Information
- Application Number
- CN202411984767.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-04-04
AI Technical Summary
In existing microwave equipment, the conductor connection is not firm enough, which is prone to loosening and weld cracking, resulting in connection failure.
A conductor assembly is designed, including a tubular conductor and a connecting conductor, which is plugged into the side wall through hole through the connector, and the sliding rod abuts the inner wall of the conical through hole, exerts a radial force to make the connecting head tightly connected to the side wall through hole, and keeps the connection stable through negative pressure adsorption.
The reliability of conductor connection is achieved, the risk of loosening is reduced, and the connection failure is avoided due to thermal expansion and contraction.
Smart Images
Figure CN119764880A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of electronic equipment, and in particular to a conductor component. Background Art
[0002] Microwave equipment generally includes a microwave source, a waveguide and a discharge cavity. The microwave signal generated by the microwave source is transmitted to the discharge cavity through the waveguide.
[0003] In microwave equipment, it is often necessary to connect one conductor to another conductor. In the prior art, welding is generally used; however, this conventional connection method is not reliable and the weld often cracks, which results in an insufficiently firm connection between the two conductors. Summary of the invention
[0004] The object of the present invention is to provide a conductor assembly, which can firmly connect two conductors and reduce the risk of loosening.
[0005] The present invention is achieved in that: A conductor assembly, comprising: A tubular conductor, wherein the tubular conductor is a hollow tubular structure, and a circular side wall through hole is provided on the side wall of the tubular conductor; A connecting conductor, the connecting conductor comprising a connecting head and a body; The connector is connected to one end of the body, the connector is cylindrical as a whole, and is provided with a tapered through hole, with the large diameter end of the tapered through hole facing the body; The connector is inserted into the side wall through hole; The body is provided with a body through hole extending along the length direction thereof, the body through hole is coaxially arranged with the tapered through hole, a sliding rod is arranged in the body through hole, and the sliding rod is slidably arranged in the body through hole; The end of the sliding rod can abut against the inner wall of the tapered through hole and be fixed at a corresponding position, so that the connecting head is subjected to radial force, thereby making the connecting head tightly connected to the side wall through hole.
[0006] Furthermore, at least one gap is provided on the connector, and the gap extends along the axial direction of the connector and divides the connector into at least two parts; when the connector is subjected to radial force, the at least two parts can approach or move away from each other, so that the outer diameter of the connector is correspondingly reduced or increased.
[0007] Furthermore, a spherical ball is arranged in the conical through hole, and the end of the sliding rod can abut against the spherical ball.
[0008] Furthermore, the taper of the tapered through hole enables the ball and the connector to be self-locking, the sliding rod is connected to the ball, and the length of the sliding rod is greater than the length of the main body through hole.
[0009] Furthermore, a nut is provided at the end of the main body through hole away from the connecting head, a threaded hole is provided on the nut, the sliding rod is provided with an external thread, and the threaded rod is arranged in the threaded hole.
[0010] Furthermore, the sliding rod is connected to the ball via a connecting rope.
[0011] Furthermore, the tubular conductor is also provided with a negative pressure pipe connection port, and the negative pressure pipe connection port is used to connect a negative pressure pump so that the inner cavity of the tubular conductor is at negative pressure.
[0012] Furthermore, a sealing ring is sleeved on the sliding rod; and a sealing ring is also arranged between the end of the body and the outer wall of the tubular conductor.
[0013] Furthermore, the length of the connecting conductor is one quarter of the wavelength of the microwave signal in the tubular conductor.
[0014] A microwave device comprises a shell and the conductor assembly, wherein the conductor assembly is arranged in the shell, and the connecting conductor is connected to the inner wall of the shell.
[0015] The beneficial effects of the present invention are: The conductor assembly obtained by the above design of the present invention is characterized in that the connecting conductor is plugged into the side wall through-hole through a plug connector, and then the end of the sliding rod abuts against the inner wall of the tapered through-hole and is fixed in a corresponding position, so that the connecting head is subjected to radial force from the sliding rod, thereby maintaining a tight connection between the outer wall of the connecting head and the inner wall of the side wall through-hole.
[0016] Compared with traditional welding, the weld is in direct contact with the conductor, and the conductor generates a lot of heat when working. After stopping working, the temperature drops, and the thermal expansion coefficients of the weld and the conductor are different; this heat and cold directly cause cracks at the connection between the weld and the conductor, resulting in connection failure. If screw connection is used, multiple threaded holes need to be processed on the tubular conductor, and the screws are also easy to loosen due to thermal expansion and contraction. The conductor assembly provided by the present application has a more reliable connection and is not easy to loosen. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 is a schematic structural diagram of a conductor assembly provided in Embodiment 1 of the present invention; Figure 2 The embodiment 1 of the present invention provides Figure 1 A-direction view; Figure 3 It is a schematic structural diagram of a conductor assembly according to Embodiment 2 of the present invention.
[0019] Icons: 1- tubular conductor; 12- negative pressure tube connection port; 2- connecting conductor; 21- connecting head; 211- gap; 22- main body; 221- main body through hole; 222- nut; 3- sliding rod; 4- ball. DETAILED DESCRIPTION Example
[0020] like Figure 1 and Figure 2 This embodiment provides a conductor assembly, which includes a tubular conductor 1 and a connecting conductor 2, wherein the tubular conductor 1 is a hollow tubular structure, and a circular side wall through hole is provided on the side wall of the tubular conductor 1; the connecting conductor 2 is inserted into the above-mentioned side wall through hole to form a conductor assembly.
[0021] The above-mentioned tubular conductor 1 is generally used to transmit electromagnetic signals. When transmitting signals, a large amount of heat will be generated; therefore, a connecting conductor 2 needs to be arranged on its side wall to transfer the heat to the device housing through the connecting conductor 2.
[0022] The connecting conductor 2 includes an integrally formed connector 21 and a body 22, wherein the connector 21 is generally cylindrical, and is further provided with a tapered through hole, and the large diameter end of the tapered through hole faces the body 22. The body 22 is provided with a body 22 through hole arranged along its length direction, the body 22 through hole is coaxially arranged with the tapered through hole, and the diameter of the body 22 through hole is greater than the large diameter of the tapered through hole.
[0023] A sliding rod 3 is provided in the through hole of the main body 22. The sliding rod 3 can slide freely in the through hole of the main body 22. After the sliding rod 3 slides to a preset position, the sliding rod 3 can abut against the inner wall of the tapered through hole; and the sliding rod 3 can be maintained in this position, so that the connecting head 21 is subjected to a radial force, and the radial force causes the outer wall of the connecting head 21 to be tightly connected with the inner wall of the side wall through hole.
[0024] Furthermore, in order to increase the overall outer diameter of the connector 21 when it is subjected to an outward radial force, the connector 21 in this embodiment is divided into multiple parts along its axial direction, and a gap 211 is provided between two adjacent parts. When the sliding rod 3 abuts against the inner wall of the tapered through hole, the radial force causes the multiple parts to move away from each other, thereby increasing the outer diameter of the connector 21 accordingly. In other embodiments, the connector 21 may not be provided as multiple parts. In this case, the connector 21 is made of a material that is easily elastically deformed, and a thinner wall thickness can be used to achieve the change in the outer diameter of the connector 21.
[0025] In addition, in order to reduce the friction between the end of the sliding rod 3 and the connecting head 21, a ball 4 is provided at the end of the sliding rod 3; the sliding rod 3 abuts against the connecting head 21 through the ball 4, which can also apply radial force to the connecting head 21 and reduce friction.
[0026] In order to keep the sliding rod 3 in the abutting position and to cope with the loose connection caused by the hot and cold changes of the tubular conductor 1, a negative pressure adsorption method is adopted in this embodiment. Specifically, a negative pressure connection port is provided on the tubular conductor 1, and the negative pressure connection port is connected to a negative pressure pump through a negative pressure tube, and the negative pressure pump makes the inner cavity of the tubular conductor 1 negative pressure. At this time, even if the temperature difference of the tubular conductor 1 changes and causes the connection to become loose, the negative pressure in the inner cavity of the tubular conductor 1 can adsorb the ball 4 and the sliding rod 3 inward in real time, thereby maintaining a close fit between the connector 21 and the side wall through hole.
[0027] In addition, in order to improve air tightness, a sealing ring is sleeved on the sliding rod 3 ; a sealing ring is also provided between the end of the body 22 and the outer wall of the tubular conductor 1 .
[0028] Furthermore, the length of the connecting conductor 2 is one quarter of the wavelength of the microwave signal in the tubular conductor 1 , thereby preventing the connecting conductor 2 from affecting the transmission of the signal in the tubular conductor 1 .
[0029] The conductor assembly provided in this embodiment works as follows: When it is necessary to connect the connecting conductor 2 to the tubular conductor 1, the connector 21 is inserted into the through hole of the side wall, and then the sliding rod 3 is pushed so that the sliding rod 3 abuts against the ball 4; at this time, the end of the sliding rod 3 leaks out of the through hole of the body 22 for easy disassembly. Then the inner cavity of the tubular conductor 1 is evacuated so that the inner cavity generates a negative pressure; under the action of atmospheric pressure, the push rod can continuously apply a large thrust to the ball 4, so that the ball 4 can apply a large radial pressure to the connector 21, so that the connector 21 and the through hole of the side wall can fit tightly. Since the atmospheric pressure can continuously apply a thrust to the sliding rod 3, and there is a self-locking effect between the ball 4 and the conical through hole; therefore, no matter how the temperature of the tubular conductor 1 changes, the tubular conductor 1 and the connecting conductor 2 can maintain a reliable connection, avoiding loosening due to temperature changes.
[0030] In addition, if screw connection is adopted, multiple threaded holes need to be processed on the tubular conductor 1, and the screws are also easy to loosen due to thermal expansion and contraction. Moreover, if the thread of the threaded hole is damaged, it may cause the tubular conductor 1 to be unable to be connected to the connecting conductor 2. The connection method provided by this embodiment can completely avoid the above problems.
[0031] When disassembly is required, it is only necessary to let air into the inner cavity of the tubular conductor 1 and then pull out the sliding rod 3 . Example
[0032] like Figure 3 This embodiment provides another conductor assembly, which differs from Embodiment 1 in that the inner cavity of the tubular conductor 1 does not need to be evacuated, and the sliding rod 3 can be connected to the connecting conductor 2, so that the sliding rod 3 can continuously support the ball 4.
[0033] Specifically, a nut 222 is fixedly provided at the outer end of the through hole of the body 22, and the threaded hole diameter of the nut 222 is smaller than the diameter of the through hole of the body 22; an external thread is provided on the sliding rod 3, and the sliding rod 3 is arranged in the threaded hole of the nut 222. When the sliding rod 3 is rotated, the sliding rod 3 can move axially, so that the ball 4 can be pressed against the inner surface of the tapered through hole; thereby, the connector 21 can be closely matched with the side wall through hole; the threaded connection method of this embodiment is less affected by thermal expansion and contraction because it is far away from the heat source (i.e., the tubular conductor 1), and under the self-locking effect of the tapered through hole, the tubular conductor 1 and the connecting conductor 2 can maintain a reliable connection.
[0034] In order to facilitate the rotation of the sliding rod 3, a rocking handle is provided at the outer end of the sliding rod 3.
[0035] In order to facilitate disassembly, the inner end of the sliding rod 3 is connected to the ball 4 through a connecting rope (not shown in the figure). When the sliding rod 3 is rotated to withdraw the sliding rod 3 outward, the sliding rod 3 pulls the ball 4 out of the tapered through hole through the connecting rope. Alternatively, in other embodiments, the sliding rod 3 can be directly fixedly connected to the ball 4.
[0036] The conductor assembly provided in this embodiment can be used in electronic equipment, which includes a housing and the conductor assembly in embodiment 1 or 2, wherein the free end of the connecting conductor 2 is fixedly connected to the housing, and the sliding rod 3 can freely pass through and be exposed outside the housing, thereby facilitating operation. The connecting conductor 2 can not only play the role of fixing the tubular conductor 1, but also play the role of heat conduction, so that the heat of the tubular conductor 1 can be quickly transferred to the housing through the connecting conductor 2, thereby facilitating heat dissipation.
[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A conductor assembly, characterized in that: include: A tubular conductor, wherein the tubular conductor is a hollow tubular structure, and a circular side wall through hole is provided on the side wall of the tubular conductor; A connecting conductor, the connecting conductor comprising a connecting head and a body; The connector is connected to one end of the body, the connector is cylindrical as a whole, and is provided with a tapered through hole, with the large diameter end of the tapered through hole facing the body; The connector is inserted into the side wall through hole; The body is provided with a body through hole extending along the length direction thereof, the body through hole is coaxially arranged with the tapered through hole, a sliding rod is arranged in the body through hole, and the sliding rod is slidably arranged in the body through hole; The end of the sliding rod can abut against the inner wall of the tapered through hole and be fixed at a corresponding position, so that the connecting head is subjected to radial force, thereby making the connecting head tightly connected to the side wall through hole.
2. A conductor assembly according to claim 1, characterized in that: At least one gap is provided on the connector, and the gap extends along the axial direction of the connector and divides the connector into at least two parts; when the connector is subjected to radial force, the at least two parts can approach or move away from each other, so that the outer diameter of the connector is correspondingly reduced or increased.
3. A conductor assembly according to claim 1 or 2, characterized in that: A round ball is arranged in the conical through hole, and the end of the sliding rod can abut against the round ball.
4. A conductor assembly according to claim 3, characterized in that: The taper of the conical through hole enables the ball and the connector to achieve self-locking. The sliding rod is connected to the ball, and the length of the sliding rod is greater than the length of the main body through hole.
5. A conductor assembly according to claim 3, characterized in that: A nut is arranged at the end of the body through hole away from the connecting head, a threaded hole is arranged on the nut, an external thread is arranged on the sliding rod, and the threaded rod is arranged in the threaded hole.
6. A conductor assembly according to claim 5, characterized in that: The sliding rod is connected to the ball via a connecting rope.
7. A conductor assembly according to claim 1 or 2, characterized in that: The tubular conductor is also provided with a negative pressure pipe connection port, and the negative pressure pipe connection port is used to connect a negative pressure pump so that the inner cavity of the tubular conductor is at negative pressure.
8. A conductor assembly according to claim 7, characterized in that: A sealing ring is sleeved on the sliding rod; a sealing ring is also arranged between the end of the body and the outer wall of the tubular conductor.
9. A conductor assembly according to claim 1, characterized in that: The length of the connecting conductor is one quarter of the wavelength of the microwave signal in the tubular conductor.