Radio frequency switch connector
By providing elastic members in the radio frequency switch connector between the inner conductors, stable contact and sliding of the inner conductors are achieved, which solves the poor contact problem caused by inconsistent spring reset and reduces the volume of the connector.
Patent Information
- Application Number
- CN202422338329.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-25
AI Technical Summary
In the existing SMA RF switch connectors, inconsistent spring reset causes sliding accessories to rise, poor contact stability, and large overall product accumulation.
An elastic member is provided between the first inner conductor and the second inner conductor, contact and separation from the third inner conductor is achieved through the sliding of the first inner conductor, and a preload force is used to ensure stable contact, and the connector volume is reduced by reducing the inner conductor structure.
Improve the stability of the inner conductor contact, avoid the poor contact problems caused by inconsistent spring return, and reduce the overall volume of the connector.
Smart Images
Figure CN223194055U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of connectors, and in particular relates to a radio frequency switch connector. Background Art
[0002] SMA RF switch connectors are widely used in routers and mobile terminals that need to enhance RF signals. The structure of the SMA RF switch connector 1' currently used in the market is as follows: Figure 1 As shown, Figure 1 As shown, the existing SMA RF switch connector 1′ has a sliding fitting 12′ mounted on a sliding inner conductor 11′. A spring 13′ abuts against the sliding fitting 12′, pushing the sliding fitting 12′ toward the fixed inner conductor 14′. At this point, the sliding fitting 12′ contacts the fixed inner conductor 14′, and the C end of the fixed inner conductor 14′ is connected to the B end of the sliding inner conductor 11′ via the sliding fitting 12′, connecting the C end and the B end. When the A end of the sliding inner conductor 11′ is twisted into the connector, it pushes the sliding inner conductor 11′ toward the B end, moving the sliding fitting 12′ toward the B end, and separating the sliding fitting 12′ from the fixed inner conductor 14′, thereby disconnecting the C end from the B end and connecting the A end to the B end. When the connector at the A end is twisted out, the sliding inner conductor 11′ is reset by the spring 13′, contacting the fixed inner conductor 14′ and connecting the C end and the B end.
[0003] In the above structure, after the connector at end A is twisted out, the spring 13' resets inconsistently each time. When the spring 13' resets with a tilt, it squeezes the sliding fitting 12', causing one side of the sliding fitting 12' to tilt up. This will cause poor contact between the sliding fitting 12' and the fixed inner conductor 14', making it impossible to connect the C end and the B end, and the contact stability is poor.
[0004] At the same time, in the above structure, since the sliding fitting 12 ′ is sleeved on the sliding inner conductor 11 ′, the overall outer diameter of the sliding inner conductor 11 ′ is too large, which in turn causes the overall volume of the product to be larger. Utility Model Content
[0005] The purpose of this application is to provide a radio frequency switch connector to address the deficiencies of the prior art.
[0006] To achieve the above objectives, this application provides the following technical solutions:
[0007] A radio frequency switch connector, comprising:
[0008] outer conductor;
[0009] a first inner conductor and a second inner conductor, wherein at least one end of each of the first inner conductor and the second inner conductor is disposed in the outer conductor and is disposed along a first direction, and the first inner conductor is slidably connected to the second inner conductor so that the first inner conductor can slide along the first direction;
[0010] a third inner conductor, at least one end of which is disposed in the outer conductor and arranged along a second direction, wherein the first inner conductor has a first state of contact with the third inner conductor and a second state of separation from the third inner conductor by sliding from the first state toward the second inner conductor along the first direction; the second direction is perpendicular to the first direction; and
[0011] An elastic member is provided between the first inner conductor and the second inner conductor, and is configured to have a pre-tightening force for pushing the first inner conductor toward the third inner conductor along the first direction, so that the first inner conductor can remain in the first state when not subjected to external force.
[0012] In some embodiments, a sliding hole is provided at one end of the first inner conductor connected to the second inner conductor, and the second inner conductor is inserted into the sliding hole.
[0013] In some embodiments, the sliding hole is a blind hole, one end of the elastic member abuts against the bottom of the sliding hole, and the other end of the elastic member abuts against the second inner conductor.
[0014] In some embodiments, the elastic member is a spring, and the end surface of the second inner conductor abutting against the elastic member is an inclined surface.
[0015] In some embodiments, the RF switch connector further comprises:
[0016] a first insulating member, disposed between the first inner conductor and the outer conductor, wherein the first inner conductor is slidably connected to the first insulating member;
[0017] a second insulating member, disposed between the second inner conductor and the outer conductor, wherein the second inner conductor is fixedly connected to the second insulating member;
[0018] The third insulating member is provided between the third inner conductor and the outer conductor, and the third inner conductor is fixedly connected to the third insulating member.
[0019] In some embodiments, a first limiting portion is provided on the first inner conductor, and the first limiting portion abuts against the first insulating member to prevent the first inner conductor from coming out of the outer conductor;
[0020] The second inner conductor is provided with a second limiting portion, the second limiting portion abutting against the second insulating member to prevent the first inner conductor from coming out of the outer conductor;
[0021] The third inner conductor is provided with a third limiting portion, and the third limiting portion abuts against the third insulating member to prevent the third inner conductor from coming out of the outer conductor.
[0022] In some embodiments, a contact portion for contacting the third inner conductor is provided on the first inner conductor, and the contact portion is provided on the outer circumference of the first inner conductor and extends radially outwardly of the first inner conductor.
[0023] In some embodiments, an inserting hole is provided at an end of the first inner conductor away from the second inner conductor, and the inserting hole is used for inserting with the docking connector.
[0024] In some embodiments, a side wall of the plug hole is provided with a slit extending along the first direction.
[0025] In some embodiments, the outer conductor and the end corresponding to the first inner conductor are provided with threads, and are connected to the docking connector through the threads.
[0026] The benefits of this application are:
[0027] An elastic member (spring) is disposed between the first inner conductor and the second inner conductor, and the first inner conductor and the second inner conductor are connected in a sliding manner. The first inner conductor and the third inner conductor (fixed inner conductor) are brought into contact and separated by sliding relative to the second inner conductor, thereby achieving connection and disconnection between the third inner conductor and the second inner conductor. The elastic member ensures that the first inner conductor always has a preload force to contact the third inner conductor. The above structure disposes the elastic member (spring) between the first inner conductor and the second inner conductor, which can improve the stability of the contact between the second inner conductor and the third inner conductor, and avoids the situation in the prior art where the spring 13' is disposed on the outer ring of the sliding inner conductor 11', resulting in inconsistent reset of the spring 13' and squeezing and tilting the sliding fitting 12', thereby avoiding the problem of poor contact stability caused by the tilting of the sliding fitting 12'. At the same time, disposing the elastic member (spring) between the first inner conductor and the second inner conductor makes the overall area of the connector smaller. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] The drawings described below are only some embodiments. A person skilled in the art can derive other drawings based on these drawings without inventive effort. In the drawings:
[0029] Figure 1 It is a structural diagram of a radio frequency switch connector in the prior art;
[0030] Figure 2 This is a schematic diagram of the overall structure of the RF switch connector in an embodiment of the present application;
[0031] Figure 3 Schematic diagram of the cross-sectional structure of the radio frequency switch connector in the first state according to an embodiment of the present application;
[0032] Figure 4 Schematic diagram of the cross-sectional structure of the radio frequency switch connector in the second state according to an embodiment of the present application;
[0033] Figure 5 This is a schematic diagram of the exploded structure of the radio frequency switch connector in an embodiment of the present application;
[0034] Figure 6 Schematic diagram of the exploded cross-sectional structure of the radio frequency switch connector in an embodiment of the present application;
[0035] Figure 7 This is a schematic cross-sectional view of the RF switch connector and the docking connector separated in an embodiment of the present application;
[0036] Figure 8 This is a schematic cross-sectional view of the connection between the RF switch connector and the docking connector in an embodiment of the present application;
[0037] Figure 9 This is a structural diagram of the connection between the RF switch connector and the docking connector in an embodiment of the present application.
[0038] In the accompanying drawings, the components represented by the reference numerals are as follows:
[0039] 1′, RF switch connector; 11′, sliding inner conductor; 12′, sliding fitting; 13′, spring; 14′, fixed inner conductor; 15′, outer conductor;
[0040] 10. RF switch connector;
[0041] 110, outer conductor; 111, thread; 120, first inner conductor; 121, sliding hole; 122, first limiting portion; 123, contact portion; 124, insertion hole; 125, slit; 130, second inner conductor; 131, second limiting portion; 140, third inner conductor; 141, third limiting portion; 150, elastic member; 160, first insulating member; 170, second insulating member; 180, third insulating member;
[0042] 20. Docking connector; 201. Docking inner conductor; 202. Docking outer conductor; 2021. Internal thread. DETAILED DESCRIPTION
[0043] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of this application.
[0044] The embodiment of the present application provides a radio frequency switch connector. Figures 2 to 6 As shown, in the embodiment of the present application, the RF switch connector 10 includes an outer conductor 110 , a first inner conductor 120 , a second inner conductor 130 , a third inner conductor 140 and an elastic member 150 .
[0045] like Figure 3 As shown, at least one end of the first inner conductor 120 and the second inner conductor 130 are disposed in the outer conductor 110, and the first inner conductor 120 and the second inner conductor 130 are disposed along a first direction. Figure 3 The first inner conductor 120 and the second inner conductor 130 at least one end is disposed in the outer conductor 110, which means that the first inner conductor 120 and the second inner conductor 130 can have only one end disposed in the outer conductor 110, or both ends can be disposed in the outer conductor 110. Figure 3 As shown, both ends of the first inner conductor 120 are disposed inside the outer conductor 110, while only one end of the second inner conductor 130 is disposed inside the outer conductor 110, with the other end exposed outside the outer conductor 110. Although both ends of the first inner conductor 120 are disposed inside the outer conductor 110, an insertion port is still provided on the outer conductor 110 for the first inner conductor 120 to be plugged into an external docking connector. Figure 3 As shown, the first inner conductor 120 is slidably connected to the second inner conductor 130 , so that the first inner conductor 120 can slide along a first direction (X direction). The second inner conductor 130 is fixed on the outer conductor 110 .
[0046] like Figure 3 As shown, at least one end of the third inner conductor 140 is disposed in the outer conductor 110, the third inner conductor 140 is fixed to the outer conductor 110, and the third inner conductor 140 is disposed along the second direction. The second direction is perpendicular to the first direction (X direction), and the second direction is Figure 3 As shown in the Z direction. Figure 3 As shown, the first inner conductor 120 is in the first state, at which time the first inner conductor 120 contacts the third inner conductor 140. Figure 3 After sliding toward the second inner conductor 130 along the first direction (X direction) in the first state shown, as shown in FIG. Figure 4 As shown, the first inner conductor 120 is separated from the third inner conductor 140 , and at this time the first inner conductor 120 is in the second state.
[0047] like Figure 3 As shown, the elastic member 150 is disposed between the first inner conductor 120 and the second inner conductor 130. The elastic member 150 is configured to have a pre-tightening force to push the first inner conductor 120 toward the third inner conductor 140 along the first direction (X direction), so that the first inner conductor 120 can remain in the first state and contact with the third inner conductor 140 when no external force is applied. Figure 7 and Figure 8 As shown, the docking connector 20 is twisted into the A end of the RF switch connector 10, pushing the first inner conductor 120 inward, squeezing the elastic member 150, and separating the first inner conductor 120 from the third inner conductor 140. At this point, the A end of the RF switch connector 10 is connected to the B end. When the docking connector 20 is removed, the first inner conductor 120 is reset under the elastic force of the elastic member 150, returning to the first state and contacting the third inner conductor 140. At this point, the C end of the RF switch connector 10 is connected to the B end.
[0048] In this embodiment of the present application, the elastic member 150 is positioned between the first inner conductor 120 and the second inner conductor 130, thereby improving the contact stability between the second inner conductor 130 and the third inner conductor 140. This avoids the prior art situation in which the spring 13' is positioned on the outer ring of the sliding inner conductor 11', which results in inconsistent spring 13' resetting and squeezing and tilting the sliding fitting 12'. This also avoids the problem of poor contact stability caused by tilting the sliding fitting 12'. Furthermore, positioning the elastic member 150 between the first inner conductor 120 and the second inner conductor 130 can also reduce the overall size of the connector.
[0049] In one embodiment, if Figure 3 As shown, a sliding hole 121 is provided at one end of the first inner conductor 120 connected to the second inner conductor 130. The second inner conductor 130 is inserted into the sliding hole 121 to achieve a sliding connection between the first inner conductor 120 and the second inner conductor 130. The first inner conductor 120 is slidably guided by the cooperation between the second inner conductor 130 and the sliding hole 121.
[0050] like Figure 3 As shown, the sliding hole 121 is a blind hole. The sliding hole 121 extends from the end surface of the first inner conductor 120 along the first direction (X direction) away from the second inner conductor 130. One end of the elastic member 150 abuts the bottom of the sliding hole 121, and the other end of the elastic member 150 abuts the end surface of the second inner conductor 130. The second inner conductor 130 is fixed to the outer conductor 110. Therefore, the second inner conductor 130 can be pressed away from the first inner conductor 120 by the elastic member 150, thereby pressing the first inner conductor 120 against the third inner conductor 140, thereby contacting the third inner conductor 140.
[0051] In one embodiment, if Figure 3 As shown, the elastic member 150 is a spring, and the end surface S where the second inner conductor 130 contacts the elastic member 150 is an inclined surface. The inclined surface contacts the spring 150 to improve the contact between the second inner conductor 130 and the spring 150, making the movement of the first inner conductor 120 more stable.
[0052] refer to Figure 3 The RF switch connector 10 further includes a first insulating member 160, a second insulating member 170 and a third insulating member 180. Figure 3 As shown, the first insulating member 160 is disposed between the first inner conductor 120 and the outer conductor 110, and the first inner conductor 120 is slidably connected to the first insulating member 160. Specifically, as Figure 5 and Figure 6 As shown, the first insulating member 160 is generally cylindrical, and the outer side of the first insulating member 160 is stuck in the outer conductor 110. The first inner conductor 120 is disposed on the first insulating member 160, thereby achieving insulation between the first inner conductor 120 and the outer conductor 110. The first inner conductor 120 can slide on the first insulating member 160, so that the first inner conductor 120 can switch between the first state and the second state.
[0053] like Figure 3 As shown, the second insulating member 170 is disposed between the second inner conductor 130 and the outer conductor 110, and the second inner conductor 130 is fixedly connected to the second insulating member 170. The outer side of the second insulating member 170 is stuck in the outer conductor 110. The second inner conductor 130 is inserted into the second insulating member 170 and is fixed to the second insulating member 170.
[0054] like Figure 3 As shown, the third insulating member 180 is disposed between the third inner conductor 140 and the outer conductor 110, and the third inner conductor 140 is fixedly connected to the third insulating member 180. The outer side of the third insulating member 180 is stuck in the outer conductor 110. The third inner conductor 140 is inserted into the third insulating member 180 and fixed to the third insulating member 180.
[0055] It is understood that the insulating member is made of insulating material to achieve insulation function, such as plastic, rubber, etc.
[0056] like Figure 3As shown, the first inner conductor 120 is provided with a first limiting portion 122, which abuts against the first insulating member 160, thereby preventing the first inner conductor 120 from being removed from the outer conductor 110. The second inner conductor 130 is provided with a second limiting portion 131, which abuts against the second insulating member 170, thereby preventing the first inner conductor 120 from being removed from the outer conductor 110. The third inner conductor 140 is provided with a third limiting portion 141, which abuts against the third insulating member 180, thereby preventing the third inner conductor 140 from being removed from the outer conductor 110.
[0057] In one embodiment, if Figure 5 As shown in the figure, the limiting portions (first limiting portion 122, second limiting portion 131, third limiting portion 141) are disc-shaped and extend radially outward from the outside of the inner conductors (first inner conductor 120, second inner conductor 130, third inner conductor 140).
[0058] In one embodiment, if Figure 3 As shown in the figure, the first inner conductor 120 is provided with a contact portion 123 for contacting the third inner conductor 140. The contact portion 123 is disposed on the outer circumference of the first inner conductor 120 and extends radially outward from the first inner conductor 120. Specifically, the contact portion 123 is configured in a disc shape. It will be appreciated that the contact portion 123 is located between the third inner conductor 140 and the second inner conductor 130, so that the contact portion 123 can move toward the second inner conductor 130 and separate from the third inner conductor 140 under the insertion force of the docking connector 20. After the docking connector 20 is removed, the first inner conductor 120 can return to contact with the third inner conductor 140.
[0059] like Figure 6 As shown, the first inner conductor 120 is provided with a plug hole 124 at one end away from the second inner conductor 130, and the plug hole 124 is used to be plugged into the docking connector 20. Figure 8 As shown, the docking inner conductor 201 of the docking connector 20 is inserted into the insertion hole 124 of the first inner conductor 120 to achieve electrical connection.
[0060] Further, such as Figure 6 As shown, a slit 125 is provided on the sidewall of the insertion hole 124. The slit 125 extends along a first direction (the X direction). This allows the hole wall of the insertion hole 124 to have a certain degree of elasticity, thereby preventing the docking connector 20 from being rigidly plugged into the insertion hole 124 and damaging the first inner conductor 120.
[0061] like Figure 5 As shown, a plurality of slits 125 may be provided, and the plurality of slits 125 are arranged at intervals along the circumference of the first inner conductor 120 .
[0062] like Figure 2As shown, the outer conductor 110 and the first inner conductor 120 have threads 111 at one end thereof, and are connected to the docking connector 20 via the threads 111. Figure 2 As shown, the thread 111 is an external thread 111, and the external thread 111 is provided on the outside of the outer conductor 110. Figure 7 As shown, it can be understood that the outer conductor 202 of the docking connector 20 is provided with a corresponding internal thread 2021. When connected, the docking connector 20 is screwed in through the matching of the internal and external threads. Figure 8 and Figure 9 shown.
[0063] In the description of this application, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to direct connection or indirect connection through an intermediate medium. Those skilled in the art will understand the meaning of the above terms in this application based on the specific circumstances.
[0064] In the description of this embodiment, terms such as "upper," "lower," "front," and "rear" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. The terms "first" and "second" are used solely for descriptive purposes and have no special meaning.
[0065] The above-described embodiments merely represent implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.
Claims
1. A radio frequency switch connector, characterized in that: include: outer conductor; a first inner conductor and a second inner conductor, wherein at least one end of each of the first inner conductor and the second inner conductor is disposed in the outer conductor and is disposed along a first direction, and the first inner conductor is slidably connected to the second inner conductor so that the first inner conductor can slide along the first direction; a third inner conductor, at least one end of which is disposed in the outer conductor and arranged along the second direction, wherein the first inner conductor has a first state of contact with the third inner conductor and a second state of sliding from the first state toward the second inner conductor along the first direction to separate from the third inner conductor; The second direction is perpendicular to the first direction; as well as An elastic member is provided between the first inner conductor and the second inner conductor, and is configured to have a pre-tightening force for pushing the first inner conductor toward the third inner conductor along the first direction, so that the first inner conductor can remain in the first state when not subjected to external force.
2. The radio frequency switch connector according to claim 1, characterized in that: One end of the first inner conductor connected to the second inner conductor is provided with a sliding hole, and the second inner conductor is inserted into the sliding hole.
3. The radio frequency switch connector according to claim 2, characterized in that: The sliding hole is a blind hole, one end of the elastic member abuts against the bottom of the sliding hole, and the other end of the elastic member abuts against the second inner conductor.
4. The radio frequency switch connector according to claim 3, characterized in that: The elastic member is a spring, and the end surface where the second inner conductor abuts against the elastic member is an inclined surface.
5. The radio frequency switch connector according to any one of claims 1 to 4, characterized in that: Also includes: a first insulating member, disposed between the first inner conductor and the outer conductor, wherein the first inner conductor is slidably connected to the first insulating member; a second insulating member, disposed between the second inner conductor and the outer conductor, wherein the second inner conductor is fixedly connected to the second insulating member; The third insulating member is provided between the third inner conductor and the outer conductor, and the third inner conductor is fixedly connected to the third insulating member.
6. The radio frequency switch connector according to claim 5, characterized in that: A first limiting portion is provided on the first inner conductor, and the first limiting portion abuts against the first insulating member to prevent the first inner conductor from coming out of the outer conductor; The second inner conductor is provided with a second limiting portion, the second limiting portion abutting against the second insulating member to prevent the first inner conductor from coming out of the outer conductor; The third inner conductor is provided with a third limiting portion, and the third limiting portion abuts against the third insulating member to prevent the third inner conductor from coming out of the outer conductor.
7. The radio frequency switch connector according to claim 1, characterized in that: The first inner conductor is provided with a contact portion for contacting the third inner conductor. The contact portion is provided on the outer periphery of the first inner conductor and extends outward in a radial direction of the first inner conductor.
8. The radio frequency switch connector according to claim 1, wherein: An inserting hole is provided at one end of the first inner conductor away from the second inner conductor, and the inserting hole is used for inserting with a docking connector.
9. The radio frequency switch connector according to claim 8, characterized in that: A slit extending along the first direction is provided on the side wall of the plug hole.
10. The radio frequency switch connector according to claim 1, wherein: One end of the outer conductor corresponding to the first inner conductor is provided with a thread and is connected to the docking connector through the thread.