Floating radio frequency connector and elastic body thereof

Abstract

The invention provides a floating radio frequency connector and an elastic body thereof, and belongs to the technical field of coaxial connectors. The floating radio frequency connector comprises a fixed outer conductor, a floating outer conductor, a floating insulator and a floating inner conductor, the floating inner conductor comprises a contact body and an elastic body, the contact body is fixedly installed in the floating insulator, the elastic body comprises a welding foot part and a deformation part, at least part of the deformation part is of a spiral structure, and the welding foot part is located at one axial end of the deformation part. The contact body is located at the end, axially away from the welding foot part, of the deformation part, and the contact body and the elastic body are of a split structure or an integrated structure. The elastic body of the floating radio frequency connector comprises the elastic body. According to the invention, the deformation part of the floating inner conductor is designed into a spiral structure, so that the elastic deformation capability of the deformation part in each direction is enhanced, and the problems of fatigue fracture and connection failure of a welding pin and a substrate are avoided.

Description

Technical Field

[0001] The invention belongs to the field of coaxial connectors, and in particular relates to a floating radio frequency connector and an elastic body thereof. Background Art

[0002] RF connectors are used to transmit RF signals. They are often used to connect substrates or RF modules to substrates. For example, the substrates of vehicle camera modules are connected via RF connectors. Due to installation errors, RF connectors are prone to axial and radial position deviations, which can cause RF connectors to malfunction or even fail.

[0003] To solve the above problems, RF connectors are often designed as floating structures. For example, the floating RF connector disclosed in the Chinese utility model patent with the authorization announcement number CN220107066U includes a fixed outer conductor, a floating outer conductor, a floating insulator, a floating inner conductor and a fixed insulator. The lower end of the floating outer conductor is provided with a floating head that can elastically and permanently abut against the inner wall of the fixed outer conductor. The head of the floating outer conductor is matched with the inclined surface guide of the matching end to achieve the angular swing of the floating connector, which is convenient for the quick plug-in connection of the connector; the bottom of the floating inner conductor is bent and extended to form a terminal welding foot of an elastic arm structure, and the part between the main part of the floating inner conductor and the terminal welding foot is a deformation part, which can make the main part of the floating inner conductor swing with the floating insulator, eliminate the installation error of the connector, and facilitate the accurate connection of the connector.

[0004] However, the number of directions in which the floating inner conductor in the above-mentioned floating RF connector can freely deflect is limited, and the number of its free deflection directions mainly depends on the bending direction of the terminal solder foot. The elasticity is poor in the normal direction of the bending direction of the terminal solder foot and the direction within 45° of the normal, so the desired free deflection cannot be achieved. When the adapter connector deviates in these directions, the connection between the main part of the floating inner conductor and the terminal solder foot will undergo plastic deformation, and fatigue fracture may occur over time; in addition, the above-mentioned floating inner conductor is used for deformation. The part is short, so the force on the floating inner conductor is easily transmitted to the terminal solder foot and the surface mount solder joint on the substrate, causing greater stress at the surface mount solder joint, causing the sensor on the substrate to deform and affect the normal operation of the sensor. In severe cases, the terminal solder foot will also peel off from the substrate, causing the connector to fail. Summary of the invention

[0005] The purpose of the present invention is to provide a floating RF connector to solve the technical problems in the prior art that the floating inner conductor is prone to fatigue fracture due to insufficient elasticity in some directions and the terminal solder pin is prone to peeling due to high stress at the connection between the terminal solder pin and the substrate.

[0006] The object of the present invention is to provide an elastic body of a floating radio frequency connector to solve the above technical problems.

[0007] To achieve the above purpose, the technical solution of the floating RF connector provided by the present invention is: A floating radio frequency connector comprises a fixed outer conductor, a floating outer conductor, a floating insulator and a floating inner conductor. The floating inner conductor comprises a contact body and an elastomer. The contact body is fixedly installed in the floating insulator and is used for conductive plugging with an adapter connector. The elastomer comprises a welding foot and a deformation part. At least part of the structure of the deformation part is a spiral structure. The welding foot is located at one axial end of the deformation part and is used for welding with a substrate. The contact body is located at one end of the deformation part axially away from the welding foot. The contact body and the elastomer are separate structures and are connected to the elastomer by a conductive connection structure or the contact body and the elastomer are an integral structure.

[0008] As a further improvement, the contact body and the elastomer are separate structures, an axial limiting structure is provided between the fixed outer conductor and the floating outer conductor for preventing the two from axially separating, the elastomer and the contact body are tightly fitted along the axial direction to form a conductive connection between the two, and a radial limiting structure is provided between the elastomer and the contact body or between the elastomer and the floating insulator for preventing the elastomer and the contact body from radially separating.

[0009] As a further improvement, the contact body includes a contact main body and an insertion part. The outer diameter of the contact main body is larger than the outer diameter of the insertion part. A step structure is formed between the contact main body and the insertion part. The insertion part is axially inserted into the deformation part of the elastomer. The step surface of the step structure is axially tightly fitted with the deformation part, and the insertion part constitutes a radial limiting structure.

[0010] As a further improvement, a limiting ring is provided at the axial end of the floating insulator, at least part of the deformed portion is located inside the limiting ring, and the limiting ring constitutes a radial limiting structure for limiting the radial position of at least part of the deformed portion.

[0011] As a further improvement, the elastic body includes a helical section and a non-helical section, the helical section constitutes the deformation portion, and the non-helical section constitutes the welding foot portion.

[0012] As a further improvement, the contact body and the deformation portion of the elastic body are an integrated spiral structure.

[0013] As a further improvement, the welding foot includes an axial extension section connected to the deformation section and a radial extension section located at one end of the axial extension section away from the deformation section. The floating RF connector also includes a fixed insulator, which is fixedly installed in the fixed outer conductor. A limiting hole is axially arranged on the fixed insulator for the axial extension section of the welding foot to pass through and for limiting the radial position of the axial extension section. The fixed insulator is also provided with a channel for the radial extension section of the welding foot to extend out.

[0014] As a further improvement, the limiting hole is eccentrically arranged on the fixed insulator.

[0015] As a further improvement, a receiving groove for receiving the deformation part is provided on the fixed insulator, the diameter of the receiving groove is larger than the outer diameter of the deformation part and the maximum value of the diameter of the receiving groove satisfies that the floating insulator cannot be embedded in the receiving groove.

[0016] As a further improvement, the cross-sectional shape of the radial extension section is circular, a lead-out groove is provided on the end surface of the fixed insulator away from the floating insulator, the cross-sectional shape of the lead-out groove is a major arc shape, the radial extension section is embedded in the lead-out groove and the lead-out groove constitutes a channel for the radial extension section to extend out.

[0017] The beneficial effect is that the floating RF connector provided by the present invention is an improvement over the prior art. The floating inner conductor in the floating RF connector sets the deformation part on the elastic body for elastic deformation into a spiral structure, and the spiral structure has good elastic deformation ability in all directions, so it can avoid the phenomenon of fatigue fracture of the elastic body and extend the service life of the floating inner conductor; and because the spiral structure is more likely to deform, when the contact body deflects with the same amplitude, the local deformation and stress generated on the spiral structure are small, so it is not easy to generate large stress at the solder foot of the elastic body and the surface solder joint on the substrate, thereby avoiding the solder foot from peeling off from the substrate.

[0018] To achieve the above object, the technical solution of the elastic body of the floating RF connector provided by the present invention is: An elastomer of a floating radio frequency connector comprises a welding foot portion and a deformation portion, wherein at least part of the structure of the deformation portion is a spiral structure, the welding foot portion is located at one axial end of the deformation portion and is used for welding with a substrate, and the end of the deformation portion axially away from the welding foot portion is used for connecting with a contact body through a conductive connection structure.

[0019] As a further improvement, the elastic body includes a helical section and a non-helical section, the helical section constitutes the deformation portion, and the non-helical section constitutes the welding foot portion.

[0020] As a further improvement, the weld foot portion includes an axial extension section connected to the deformation portion and a radial extension section located at one end of the axial extension section away from the deformation portion.

[0021] The beneficial effect is that the elastic body of the floating RF connector provided by the present invention is a pioneering invention. The floating inner conductor sets the deformation part of the elastic body for elastic deformation into a spiral structure, and the spiral structure has good elastic deformation ability in all directions, so it can avoid the phenomenon of fatigue fracture of the elastic body and extend the service life of the floating inner conductor; and because the spiral structure is more likely to deform, when the contact body deflects with the same amplitude, the local deformation and stress generated on the spiral structure are small, so it is not easy to generate large stress at the solder foot of the elastic body and the surface solder joint on the substrate, thereby avoiding the solder foot from peeling off from the substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the floating RF connector in the present invention; Figure 2 It is a cross-sectional view of Example 1 of the floating RF connector of the present invention; Figure 3 It is an exploded view of Example 1 of the floating RF connector of the present invention; Figure 4 It is a structural schematic diagram of a fixed outer conductor of Example 1 of a floating RF connector in the present invention; Figure 5 It is a structural schematic diagram of a fixed insulator of Example 1 of a floating RF connector in the present invention; Figure 6 It is a schematic structural diagram of a floating outer conductor of Embodiment 1 of a floating radio frequency connector in the present invention; Figure 7 It is a structural schematic diagram of a floating insulator of Example 1 of a floating RF connector in the present invention; Figure 8 It is a schematic structural diagram of the elastic body of Example 1 of the floating RF connector in the present invention; Fig. 9 It is a schematic structural diagram of a contact body of Example 1 of a floating radio frequency connector in the present invention; Fig.10 It is a structural schematic diagram of the initial stage of the mating process between the floating RF connector and the adapter connector in Embodiment 1 of the present invention; Fig.11 It is a structural schematic diagram of the floating RF connector in Embodiment 1 of the present invention during alignment with the adapter connector.

[0023] Description of reference numerals: 1. Fixed outer conductor; 11. Outer conductor welding foot; 12. Shrinkage structure; 2. Fixed insulator; 21. Limiting hole; 22. Lead-out groove; 23. Accommodating groove; 3. Floating outer conductor; 31. Elastic arm contact finger; 4. Floating insulator; 41. Ring groove; 42. Through hole; 43. Limiting ring; 44. Spherical surface; 5. Contact body; 51. Contact body; 52. Insertion part; 53. Step structure; 54. Socket; 6. Elastomer; 61. Spiral section; 62. Axial extension section; 63. Radial extension section; 7. Adapter connector; 71. Pin. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with embodiments.

[0025] To solve the problems in the prior art, the basic concept of the present invention is to design the deformation portion of the floating inner conductor into a spiral structure, thereby enhancing the elastic deformation capacity of the deformation portion in all directions, avoiding fatigue fracture and failure of the connection between the solder foot and the substrate.

[0026] Specific embodiment 1 of the floating RF connector provided by the present invention: A floating RF connector, see attached Figure 1 , Attachment Figure 2 and attached Figure 3 , including a fixed outer conductor 1, a fixed insulator 2, a floating outer conductor 3, a floating insulator 4 and a floating inner conductor, wherein the floating inner conductor includes a contact body 5 and an elastic body 6 which are separately arranged.

[0027] See attached Figure 4 The fixed outer conductor 1 is a cylindrical structure, one axial end of which is provided with an outer conductor welding foot 11 for welding with the substrate, and the other axial end of which is a shrinking structure 12. The fixed insulator 2 is arranged inside the fixed outer conductor 1, see the attached Figure 5 Two protruding structures are provided on the circumferential side of the fixed insulator 2, and the fixed insulator 2 is fixed in the fixed outer conductor 1 by the two protruding structures.

[0028] See attached Figure 6, multiple slots are provided at both axial ends of the floating outer conductor 3, so that multiple elastic arm contact fingers 31 are formed at both axial ends of the floating outer conductor 3, and the elastic arm contact fingers 31 are bent to expand both axial ends of the floating outer conductor 3 to form a ball head structure. A ball head of the floating outer conductor 3 is located in the fixed outer conductor 1, and each elastic arm contact finger 31 of the ball head is in constant contact with the inner wall of the fixed outer conductor 1. The ball head can rotate in the fixed outer conductor 1, so that the floating outer conductor 3 can deflect relative to the fixed outer conductor 1, and then the floating outer conductor 3 has a floating amount in the radial direction. The ball head of the floating outer conductor 3 located in the fixed outer conductor 1 has a certain amount of activity in the axial direction of the fixed outer conductor 1, so that the fixed outer conductor 1 also has a floating amount in the axial direction. The shrinking structure 12 of the fixed outer conductor 1 can prevent the floating outer conductor 3 from axially disengaging, so the shrinking structure 12 also constitutes an axial limiting structure. The other ball head of the floating outer conductor 3 can cooperate with the adapter connector 7 to guide the deflection of the floating outer conductor 3 during the insertion process.

[0029] The floating insulator 4 is located inside the floating outer conductor 3. Figure 7 The floating insulator 4 is also provided with a protruding structure on its circumferential side, and is fixed in the floating outer conductor 3 by the protruding structure. The floating insulator 4 is also provided with an annular groove 41 on its circumferential side. The annular groove 41 is used to change the impedance of the floating insulator 4 on the one hand, and on the other hand, a protrusion that can be embedded in the annular groove 41 can be machined at the corresponding position of the floating outer conductor 3, thereby limiting the floating insulator 4 and the floating outer conductor 3 in the axial direction.

[0030] See attached Figure 8 The elastic body 6 is formed by bending a metal wire with a circular cross section, and includes a spiral section 61 and a non-spiral section 61, wherein the spiral section 61 is a deformation portion for elastic deformation, and the non-spiral section 61 is a welding foot portion. The welding foot portion specifically includes an axial extension section and a radial extension section 63, one end of the axial extension section is connected to the spiral section 61, and the radial extension section 63 is located at one end of the axial extension section away from the spiral section 61.

[0031] See attached Figure 2 and attached Figure 5The fixed insulator 2 is provided with a limiting hole 21 along the axial direction for the axial extension section of the welding foot to pass through. The limiting hole 21 also limits the axial extension section in the radial direction. The spiral section 61 of the elastic body 6 is located on the side of the fixed insulator 2 close to the floating insulator 4. The limiting hole 21 is eccentrically arranged on the fixed insulator 2 because the axial extension section is directly axially bent at the end of the spiral section 61. Therefore, the axial extension section is at the edge of the spiral section 61 instead of the center, which can facilitate the processing of the elastic body 6. In other embodiments, the limiting hole 21 can also be set at the center of the fixed insulator 2. In this embodiment, the end of the spiral section 61 needs to be bent toward its center first, and then the axial extension section is axially bent at the center.

[0032] A lead-out groove 22 is provided on the end surface of the fixed insulator 2 away from the floating insulator 4. One end of the lead-out groove 22 is connected to the limiting hole 21, and the other end radially penetrates the fixed insulator 2. The radial extension section 63 of the elastic body 6 is embedded in the lead-out groove 22. One end of the radial extension section 63 away from the axial extension section extends out of the lead-out groove 22 and is welded and fixed to the substrate. The lead-out groove 22 constitutes a channel for the radial extension section 63 of the welding foot to extend out of the fixed outer conductor 1. The cross-sectional shape of the lead-out groove 22 is a major arc shape, so that the radial extension section 63 will not fall out of the lead-out groove 22 after being installed in the lead-out groove 22, which facilitates the welding of the radial extension section 63 and the substrate.

[0033] In other embodiments, the fixed insulator 2 and the elastic body 6 can be fixed together by integral injection molding, which can further enhance the connection strength between the two. In other embodiments, the size of the lead-out groove 22 can also be larger, and the radial extension section 63 is not limited. Extending the end of the welding leg from the fixed outer conductor 1 can facilitate welding. In other embodiments, the channel for the radial extension section 63 of the welding leg to extend out of the fixed outer conductor 1 can also be a notch or opening on the fixed insulator 2. In the case of convenient welding, for example, the welding leg is passed through the hole on the substrate and then welded on the other side of the substrate, or the channel may not be provided.

[0034] See attached Figure 2 and attached Fig. 9, a through hole 42 is provided in the axial direction on the floating insulator 4, and a protrusion structure is provided on the contact body 5, and the contact body 5 is fixed in the through hole 42 on the floating insulator 4 by the protrusion structure. The contact body 5 includes a contact body part 51 and an insertion part 52, and the protrusion structure is located on the contact body part 51. The end of the contact body part 51 away from the insertion part 52 is provided with a plug hole 54 for conductive plugging with the pin 71 of the adapter connector 7. The outer diameter of the contact body part 51 is larger than the outer diameter of the insertion part 52, and a step structure 53 is formed between the contact body part 51 and the insertion part 52. The insertion part 52 is inserted into the spiral section 61 of the elastic body 6 along the circumferential direction, and the step surface of the step structure 53 is tightly matched with the spiral section 61 axially. There is a gap between the insertion part 52 and the spiral section 61 of the elastic body 6 to facilitate assembly and deformation of the spiral section 61. Moreover, the spiral section 61 of the elastic body 6 is always in a compressed state. Under the push of the elastic body 6, the ball head of the floating outer conductor 3 located in the fixed outer conductor 1 cooperates with the shrinkage structure 12 on the fixed outer conductor 1 along the axial stop, so that the spiral section 61 is always in tight contact with the contact body 5.

[0035] The through hole 42 on the floating insulator 4 is a stepped hole, and its large diameter section is close to the fixed insulator 2, and the contact body 51 of the contact body 5 is assembled in the small diameter section. The large diameter section of the through hole 42 is used to accommodate the spiral section 61 of the elastic body 6. The part of the floating insulator 4 corresponding to the large diameter section of the through hole 42 surrounds the spiral section 61 of the elastic body 6, forming a limiting ring 43 for radially limiting the spiral section 61 of the elastic body 6. However, there is a gap between the inner wall of the large diameter section of the through hole 42 and the spiral section 61 of the elastic body 6 to facilitate its deformation. A spherical surface 44 is provided at one end of the floating insulator 4 close to the fixed insulator 2, so that the deflection of the floating insulator 4 can be guaranteed when it contacts the fixed insulator 2.

[0036] See attached Figure 2 and attached Figure 5 A receiving groove 23 is provided on the end surface of the fixed insulator 2 facing the floating insulator 4. The diameter of the receiving groove 23 is larger than the outer diameter of the spiral section 61 of the elastic body 6, so that it can be used to accommodate a part of the structure of the elastic body 6 to provide a larger space for the deformation of the elastic body 6. The diameter of the receiving groove 23 needs to be sufficient to prevent the end of the floating insulator 4 from being embedded therein.

[0037] The portion of the floating insulator 4 corresponding to the large diameter section of the through hole 42 and the insertion portion 52 of the contact body 5 both constitute a radial limiting structure to prevent the deformation portion of the elastic body 6 from radially separating from the contact body 5, ensuring that the elastic body 6 and the contact body 5 can always be in conductive contact. In addition, the radial limiting structure can also keep the floating insulator 4 and the elastic body 6, and the contact body 5 and the elastic body 6 coaxial, so that after the floating outer conductor 3 and the floating insulator 4 deflect and the external force causing the deflection is removed, the floating outer conductor 3 and the floating insulator 4 can be restored to a state perpendicular to the substrate under the action of the elastic body 6, so as to facilitate the next insertion of the adapter connector 7.

[0038] During use, see the attached Fig.10 and attached Fig.11 If there is a deviation in the position of the adapter connector 7, after the adapter connector 7 contacts the ball head of the floating outer conductor 3, the floating outer conductor 3 will adaptively swing until the socket 54 on the contact body 5 is aligned with the pin 71 on the adapter connector 7, ensuring smooth completion of the conductive connection.

[0039] During the deflection of the floating outer conductor 3, the floating insulator 4 and the contact body 5, no matter in which direction they deflect, the deformed portion of the elastomer 6 can deform elastically well, and the spiral structure of the elastomer 6 enables it to have a longer portion that can undergo elastic deformation. After the deflection amount is evenly distributed to this portion, the local deformation amount and stress are smaller than those in the prior art, which can ensure that the elastomer 6 has a longer service life; and the elastomer 6 is easier to deform than in the prior art, which can effectively reduce the force transmitted to the welding position of the solder foot, thereby preventing the elastomer 6 from peeling off from the substrate after long-term use, thereby causing the floating RF connector to fail.

[0040] In addition, the fixed insulator 2 plays a role in holding the elastomer 6. On the one hand, the radial extension section 63 of the elastomer 6 is pressed against the substrate, making it difficult for the force acting on the elastomer 6 to be transmitted to the welding position of the weld foot. On the other hand, the limiting hole 21 is used to limit the radial deflection deformation of the elastomer 6, especially the axial extension part, thereby avoiding large deformation and force at the weld foot of the elastomer 6, further reducing the stress at the welding position of the weld foot.

[0041] Specific embodiment 2 of the floating RF connector provided by the present invention: This embodiment is based on Embodiment 1, and differs from Embodiment 1 in that, in this embodiment, the contact body 5 only includes a contact main body portion 51 but does not have an insertion portion 52, and the elastomer 6 is directly tightly fitted with the axial end of the contact main body portion 51, but due to the radial limitation of the floating insulator 4, the elastomer 6 cannot break away from the contact with the contact body 5.

[0042] Specific embodiment 3 of the floating RF connector provided by the present invention: This embodiment is based on Embodiment 1, and differs from Embodiment 1 in that, in this embodiment, there is no large diameter section on the floating insulator 4, that is, there is no structure of a limiting ring 43, but because the insertion portion 52 can limit the radial position of the elastomer 6, the elastomer 6 and the contact body 5 can also be kept in close contact.

[0043] Specific embodiment 4 of the floating RF connector provided by the present invention: This embodiment is based on the embodiment 1, and is different from the embodiment 1 in that the contact body 5 and the deformed portion of the elastic body 6 are fixedly connected in this embodiment.

[0044] In one embodiment, the specific method of fixed connection is welding.

[0045] In another embodiment, the outer diameter of the inserting portion 52 on the contact body 5 is increased so that the inserting portion 52 is interference-fitted into the elastic body 6 and fixed.

[0046] In this embodiment, since the contact body 5 is fixedly connected to the elastic body 6 , no radial limiting structure may be provided between the elastic body 6 and the contact body 5 or between the elastic body 6 and the floating insulator 4 .

[0047] Specific embodiment 5 of the floating RF connector provided by the present invention: This embodiment is based on the embodiment 1, and is different from the embodiment 1 in that the elastic body 6 in this embodiment is not processed in one piece, but the welding foot part and the deformation part are processed separately and then assembled together.

[0048] Specifically, in this embodiment, the solder foot is processed from a flat metal strip so that the solder foot has a larger contact area with the solder pad of the substrate and the soldering strength is increased; the deformed portion is an ordinary spiral spring. After the two are processed, they are connected together by welding to form an elastic body 6.

[0049] In other implementations of this embodiment, a washer may be added to the end of the coil spring away from the welding foot portion to enhance the reliability of the conductive connection between the deformation portion and the contact body 5 .

[0050] Specific embodiment 6 of the floating RF connector provided by the present invention: This embodiment is based on the embodiment 1, and the difference from the embodiment 1 is that the contact body 5 and the elastic body 6 in this embodiment are processed as one piece, and the specific method is to cut the metal plate into the required shape, then form the contact body 5 by stamping, and then form the elastic body 6 by curling and bending. The cross-sectional shape of the elastic body 6 in this embodiment is a rectangle.

[0051] Specific embodiment 7 of the floating RF connector provided by the present invention: This embodiment is based on Embodiment 1, and is different from Embodiment 1 in that the contact body 5 and the elastomer 6 are integrally processed in this embodiment. Specifically, a metal wire is used to first form a welding foot portion by bending, and then a deformation portion of a spiral structure and the contact body 5 are formed by bending. The diameters of the spirals of the contact body 5 and the deformation portion are different. The spiral structure of the contact body 5 is closed at the axial end as needed to facilitate plug-in cooperation with the pin 71 of the adapter connector 7.

[0052] Specific embodiment 8 of the floating RF connector provided by the present invention: This embodiment is based on the first embodiment, and is different from the first embodiment in that the contact body is not provided with an insertion portion, and a connection hole is provided at one end of the contact body away from the insertion hole for inserting one end of the elastic body away from the welding foot portion. The connection hole can be interference-fitted with the end of the elastic body to achieve a fixed connection, or a pressing plate that presses against the elastic body in the axial direction can be provided in the connection hole, so that the elastic body is kept in a compressed state during use, so as to ensure good electrical connection between the elastic body and the contact body.

[0053] Specific embodiments of the elastic body of the floating RF connector provided by the present invention: The elastic body of the floating RF connector is the elastic body in the specific embodiment 1, 2, 3, 4 or 5 of the floating RF connector, which will not be described in detail here.

[0054] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A floating radio frequency connector, comprising a fixed outer conductor (1), a floating outer conductor (3), a floating insulator (4) and a floating inner conductor, wherein: The floating inner conductor comprises a contact body (5) and an elastic body (6); the contact body (5) is fixedly mounted in the floating insulator (4) and is used for conductive plugging with the adapter connector; the elastic body (6) comprises a welding foot portion and a deformation portion; at least part of the structure of the deformation portion is a spiral structure; the welding foot portion is located at one axial end of the deformation portion and is used for welding with a substrate; the contact body (5) is located at one end of the deformation portion axially away from the welding foot portion; the contact body (5) and the elastic body (6) are separate structures and are connected to the elastic body (6) via a conductive connection structure; or the contact body (5) and the elastic body (6) are an integral structure.

2. The floating RF connector according to claim 1, characterized in that: The contact body (5) and the elastic body (6) are separate structures; an axial limiting structure for preventing the fixed outer conductor (1) and the floating outer conductor (3) from axially separating the two is provided; the elastic body (6) and the contact body (5) are tightly fitted in the axial direction to form a conductive connection between the two; and a radial limiting structure for preventing the elastic body (6) and the contact body (5) from radially separating is provided between the elastic body (6) and the contact body (5) or between the elastic body (6) and the floating insulator (4).

3. The floating RF connector according to claim 2, characterized in that: The contact body (5) comprises a contact main body portion (51) and an inserting portion (52); the outer diameter of the contact main body portion (51) is larger than the outer diameter of the inserting portion (52); a step structure (53) is formed between the contact main body portion (51) and the inserting portion (52); the inserting portion (52) is axially inserted into the deformation portion of the elastic body (6); a step surface of the step structure (53) is axially tightly fitted with the deformation portion; and the inserting portion (52) forms a radial limiting structure.

4. The floating RF connector according to claim 2 or 3, characterized in that: A limiting ring (43) is provided at the axial end of the floating insulator (4), at least part of the deformed portion is located inside the limiting ring (43), and the limiting ring (43) constitutes a radial limiting structure for limiting the radial position of at least part of the deformed portion.

5. The floating RF connector according to any one of claims 1 to 3, characterized in that: The elastic body (6) comprises a helical section (61) and a non-helical section (61), the helical section (61) constitutes a deformation portion, and the non-helical section (61) constitutes a welding foot portion.

6. The floating RF connector according to claim 1, characterized in that: The contact body (5) and the deformation portion of the elastic body (6) are an integrated spiral structure.

7. The floating RF connector according to any one of claims 1 to 3, characterized in that: The welding foot portion comprises an axial extension section (62) connected to the deformation portion and a radial extension section (63) located at one end of the axial extension section (62) away from the deformation portion. The floating RF connector also comprises a fixed insulator (2). The fixed insulator (2) is fixedly installed in the fixed outer conductor (1). A limiting hole (21) is axially penetrated on the fixed insulator (2) for the axial extension section (62) of the welding foot portion to pass through and for limiting the radial position of the axial extension section (62). The fixed insulator (2) is also provided with a channel for the radial extension section (63) of the welding foot portion to extend out.

8. The floating RF connector according to claim 7, characterized in that: The limiting hole (21) is eccentrically arranged on the fixed insulator (2).

9. The floating RF connector according to claim 7, characterized in that: The fixed insulator (2) is provided with an accommodating groove (23) for accommodating the deformed portion, the diameter of the accommodating groove (23) is larger than the outer diameter of the deformed portion, and the maximum value of the diameter of the accommodating groove (23) satisfies that the floating insulator (4) cannot be embedded in the accommodating groove (23).

10. The floating RF connector according to claim 7, characterized in that: The cross-sectional shape of the radial extension section (63) is circular, and a lead-out groove (22) is provided on the end surface of the fixed insulator (2) away from the floating insulator (4). The cross-sectional shape of the lead-out groove (22) is a major arc shape. The radial extension section (63) is embedded in the lead-out groove (22), and the lead-out groove (22) forms a channel for the radial extension section (63) to extend out.

11. An elastic body of a floating radio frequency connector, characterized in that: It includes a welding foot part and a deformation part, at least part of the structure of the deformation part is a spiral structure, the welding foot part is located at one axial end of the deformation part and is used for welding with the substrate, and the end of the deformation part axially away from the welding foot part is used for connecting with the contact body through a conductive connection structure.

12. The elastic body of the floating RF connector according to claim 11, characterized in that: The elastic body comprises a helical section (61) and a non-helical section (61), the helical section (61) constitutes a deformation portion, and the non-helical section (61) constitutes a welding foot portion.

13. The elastic body of the floating RF connector according to claim 12, characterized in that: The welding foot portion comprises an axial extension section (62) connected to the deformation portion and a radial extension section (63) located at an end of the axial extension section (62) away from the deformation portion.

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