Connection device and radio frequency module

Abstract

The present application provides a connection device and a radio frequency module to meet the requirements of use, such as low cost, low stacking height, and high reliability. Specifically, the connection device includes a conductor assembly and a fastening structure. The fastening structure is configured to fasten the conductor assembly. The conductor assembly includes an outer conductor, an inner conductor, and an insulating elastomer. The inner conductor covers a surface of the insulating elastomer, and the outer conductor and the inner conductor are electrically insulated.

Description

Technical Field

[0001] This application relates to the field of communications, and in particular, to a connection device and a radio frequency module.

Background Art

[0002] With the development of wireless communication technology, the miniaturization, integration, and modularization of wireless base stations have become the main development directions of wireless base stations. Generally, a wireless base station includes a plurality of devices such as a transceiver, a filter, and an antenna, and different devices are connected through a connection device, for example, a radio frequency connector.

[0003] Currently, based on different device connection scenarios, the connection device can implement device connections such as connections between printed circuit boards (inter-board connections) or connections between a printed circuit board and a filter. Inter-board connection is used as an example. FIGS. 1 and 2 respectively show schematic structural diagrams of two different connection devices in the prior art for implementing inter-board connection. As shown in FIG. 1, the connection device may include an inner conductor component, that is, an elastic contact pin 1 and an inner core 2. One end of the elastic contact pin 1 is connected to the circuit board 3 in a contacting manner, the other end of the elastic contact pin 1 is connected to one end of the inner core 2, and the The other end inner core 2 is connected to another circuit board 3. Therefore, the elastic contact pin 1 and the inner core 2 can form a path between the two circuit boards 3 to realize signal transmission between the two circuit boards 3. As shown in FIG. 2, the connection device may include an insertion end 10, a connection bar 20, and an import end 30. The insertion end 10 is welded onto the circuit board 40, and the import end 30 is welded onto another circuit board 40.

[0004] However, the structures of the above two connection devices are complex and costly. In addition, in order to ensure that the connection between the device and the connection device is not interrupted in a scenario where external vibration exists, that is, to ensure high reliability of signal transmission between devices, each of the above two connection devices has a specific stacking height (stacking heigh t)It has requirements and thus cannot meet the usage requirements in the low-stack-height scenario.

SUMMARY OF THE INVENTION

MEANS FOR SOLVING THE PROBLEM

[0005] This application provides a connection device and a radio frequency module to meet usage requirements such as low cost, low stack height, and high reliability.

[0006] According to a first aspect, a connection device is provided. The connection device includes a conductor assembly and a fastening structure. The fastening structure is configured to fasten the conductor assembly. The conductor assembly includes an outer conductor, an inner conductor, and an insulating elastomer. The inner conductor covers the surface of the insulating elastomer, and the outer conductor and the inner conductor are electrically insulated.

[0007] Based on the connection device provided in this application, the inner conductor and the insulating elastomer are combined to form a connection end. The elastic restoring force of the insulating elastomer ensures high reliability of the connection end when the connection end is configured for connection. In addition, since the insulating elastomer can maintain good elastic restoring force even if it is small, it can meet the requirement of being small, that is, the requirement of low stack height. In addition, the connection device has a simple structure and can meet the requirement of low preparation cost, in other words, low cost.

[0008] Referring to the first aspect, in some implementation forms of the first aspect, the insulating elastomer has a ring-shaped structure, and the inner conductor covers the inner surface of the insulating elastomer.

[0009] This application provides a structure in which the inner surface of the insulating elastomer is covered by the inner conductor. Since the structure is simple, when the structure is fabricated, simple and convenient fabrication methods can be used, for example, fabrication methods such as extrusion molding or cutting of the materials of the inner conductor and the insulating elastomer. This is easy to fabricate and has a low fabrication cost.

[0010] Referring to the first aspect, in some implementations of the first aspect, the inner conductor further covers the end face of the insulating elastomer.

[0011] The connection end portion is formed by covering the end face of the insulating elastomer with the inner conductor. As a result, when the connection end portion is configured to be connected to the device, complete contact with the device can be ensured, and the reliability of signal transmission between devices can be further improved.

[0012] Referring to the first aspect, in some implementations of the first aspect, the outer conductor covers the outer surface of the insulating elastomer.

[0013] The present application provides a structure in which the outer surface of the insulating elastomer is covered by the outer conductor. Since the structure is simple, when the structure is fabricated, simple and convenient fabrication methods, such as extrusion molding or cutting of the materials of the outer conductor and the insulating elastomer, can be used. This is easy to fabricate and has a low fabrication cost.

[0014] Referring to the first aspect, in some implementations of the first aspect, the outer conductor further covers the end face of the insulating elastomer.

[0015] The connection end portion is formed by covering the end face of the insulating elastomer with the outer conductor. As a result, when the connection end portion is configured to be connected to the device, complete contact with the device can be ensured, and the reliability of signal transmission between devices can be further improved.

[0016] Referring to the first aspect, in some implementations of the first aspect, the inner conductor further covers the outer surface of the insulating elastomer. A through hole is provided in the outer conductor, and the inner conductor, the insulating elastomer, and the fastening post are disposed in the through hole.

[0017] This application provides a structure in which the outer surface of an insulating elastomer is covered with an inner conductor. Since the structure is simple, when the structure is fabricated, simple and convenient fabrication methods can be used, such as extrusion or cutting of the materials for the inner conductor and the insulating elastomer. This is easy to fabricate and has a low fabrication cost. In addition, the inner conductor, the insulating elastomer, and the fastening post are disposed in the through-hole of the outer conductor. As a result, when the connecting device is connected to the device, the outer conductor can function as a shield, insulation, and impedance matching to improve the reliability of signal transmission between the devices. In addition, the outer conductor may be used as a structural component and is configured to fix the device when connected to the device, ensuring the stability of the connection between the devices, and functioning as a shield, insulation, and impedance matching.

[0018] Referring to the first aspect, in some implementations of the first aspect, the fastening structure is a fastening post, and there is an insertion structure between the fastening post and the conductor assembly.

[0019] In this application, the insertion structure is disposed between the fastening post and the conductor assembly and is simple. This facilitates the fastening of the fastening post and the positioning of the conductor assembly. In addition, when the fastening post and the conductor assembly are in an interference fit, the stability of the connection between the fastening post and the conductor assembly is further improved.

[0020] Referring to the first aspect, in some implementations of the first aspect, the fastening structure is provided with a through-hole, and the conductor assembly is disposed in the through-hole.

[0021] The fastening structure provided with the through-hole may be used as a structural component. When the connecting device is connected to the device, the fastening structure may be configured to fasten the device while fastening and positioning the conductor assembly. Thereby, the stability of the connection between the devices is ensured, the connecting device is simplified in the structure, easily created, and low in cost.

[0022] Referring to the first aspect, in some implementations of the first aspect, one end of the insulating elastomer is arc-shaped, the inner conductor covers the outer surface of the arc-shaped end of the insulating elastomer, a through hole is provided in the outer conductor, and the inner conductor, the insulating elastomer and the fastening post are arranged in the through hole.

[0023] One end of the insulating elastomer is set to be arc-shaped. As a result, when the arc-shaped end is compressed, the elastic force of the connection end can be reduced, and deformation of the structure connected by the elastic force can be avoided.

[0024] Referring to the first aspect, in some implementations of the first aspect, the The other end of the insulating elastomer is provided with a hole, the fastening structure is a columnar stepped structure, and an insertion structure is formed between the fastening structure and the insulating elastomer through the hole and the columnar stepped structure.

[0025] The fastening structure is set to be a columnar stepped structure. When the stacking height of the connection device needs to be adjusted, only the height of the fastening structure needs to be adjusted, and the heights of structures such as the insulating elastomer and the inner conductor do not need to be adjusted. Therefore, by setting the fastening structure to be a columnar stepped structure, the stacking height of the connection device can be easily adjusted.

[0026] Referring to the first aspect, in some embodiments of the first aspect, the insulating elastomer includes silicone rubber, nitrile butadiene rubber, or fluorosilicone rubber.

[0027] Referring to the first aspect, in some implementations of the first aspect, the inner conductor or the outer conductor includes silver paste, tin, silver, copper, nickel, or an alloy.

[0028] According to a second aspect, a radio frequency module is provided that includes at least one device and a connection device according to at least one of the foregoing implementation forms of the first aspect. An interface is disposed on the device. The interface includes an inner conductor connection interface, an outer conductor connection interface, and an insulating region. The insulating region insulates the inner conductor connection interface and the outer conductor connection interface. One end of the inner conductor of the connection device is connected to the inner conductor connection interface, and one end of the outer conductor of the connection device is connected to the outer conductor connection interface.

[0029] Referring to the second aspect, in some implementation forms of the second aspect, the device includes a circuit board or a filter.

Brief Description of the Drawings

[0030]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

DETAILED DESCRIPTION OF THE INVENTION

[0031] Hereinafter, the technical solution of the present application will be described with reference to the accompanying drawings.

[0032] To assist those skilled in the art in understanding the technical solution of the present application, the usage scenario of the connection device will be described first below.

[0033] The connection device may also be referred to as an inter-board connection device or an inter-board connector, and is mainly configured for interconnecting devices that need to be connected, such as circuit boards, filters, and antennas. A radio frequency connector is a common connection device configured to implement connections between radio frequency devices. For example, when implementing a connection between printed circuit boards (PCBs), that is, an inter-board connection, two connected circuit boards are generally arranged in parallel and spaced apart. In other words, the connection device can be connected between two circuit boards arranged in parallel to realize an electrical connection between the circuit boards. Generally, each circuit board has a first signal terminal and a second signal terminal, that is, electrical connection points such as interfaces. Therefore, the connection device can realize the connection between the first signal ends of the two circuit boards and the connection between the second signal ends of the two circuit boards. In other words, an effective path between the two circuit boards is formed. Similarly, the connection device may be configured to implement connections between devices such as a circuit board and a filter, or may be configured to implement connections between devices such as an antenna and a filter, or may be configured to implement connections between devices such as a filter.

[0034] It should be understood that in the present application, electrical connection includes all connection methods for connecting different conductive structures.

[0035] In order to connect circuit boards and devices such as filters that need to be connected, the present application provides a connection device with low cost, low stacking height, and high reliability.

[0036] The connection device provided in the present application includes a conductor assembly and a fastening structure. The fastening structure is configured to fasten the conductor assembly.

[0037] In a possible implementation form, the connection device may be arranged between two devices to connect the two devices in order to implement electrical connection and signal transmission between the devices.

[0038] The device may include radio frequency devices, for example, radio frequency devices such as a PCB board and a filter that need to be connected. This is not limited in the present application.

[0039] Optionally, one radio frequency module may include at least one radio frequency device and a connection device connected to the device.

[0040] The fastening structure may be fastened to the device and connected to part or all of the structure of the conductor assembly to fasten and position the conductor assembly. Optionally, the fastening structure may be further configured to assist the conductor assembly in implementing electrical connection and signal transmission. The method of fastening and connecting the fastening structure and the device may include welding, press riveting, injection, etc. This is not limited in the present application. In addition, the fastening structure and part or all of the structure of the conductor assembly may be an interference fit detachable structure to prevent the corresponding structure of the conductor assembly from falling off.

[0041] It should be understood that the fastening structure may be made of an insulating material or a conductive medium material. When the fastening structure is made of a conductive medium material, the fastening structure may be configured to assist the conductor assembly in implementing electrical connection and signal transmission between the devices.

[0042] It should be further understood that the fastening structure may be of a plurality of shapes, such as columnar, cylindrical, or ring-shaped. This is not limited in this application. For example, when the fastening structure is a columnar structure, the fastening structure may be connected to a part of the through-hole structure in the conductor assembly and fasten a part of the through-hole structure. When the fastening structure is a cylindrical structure or a ring-shaped structure, in other words, a through-hole may be provided in the fastening structure, and part or all of the structure of the conductor assembly may be arranged in the through-hole of the fastening structure.

[0043] The conductor assembly includes an outer conductor, an inner conductor, and an insulating elastomer. Specifically, the inner conductor is made of a conductive medium material and covers the surface of the insulating elastomer to realize signal transmission. The outer conductor is also made of a conductive medium material and is arranged around the outside of the inner conductor, that is, arranged outside the inner conductor and electrically insulated from the inner conductor. In other words, there is a gap between the outer conductor and the inner conductor, and the outer conductor functions as a shield, insulation, and impedance matching. The insulating elastomer is made of an electrically insulating non-metallic elastic material with good elastic performance. For example, in order to avoid non-rebound after long-term use and ensure good elastic recovery force, an insulating elastomer with a compression amount of 20% and a compression set due to long-term aging of less than 15% may be considered.

[0044] In this embodiment of the present application, it should be understood that different impedance matching between the inner conductor and the outer conductor can be achieved by adjusting the structural parameters of the inner conductor and / or the outer conductor, or by adjusting the distance between the inner conductor and the outer conductor.

[0045] It should be further understood that the conductive medium material for fabricating the inner conductor or the outer conductor may be any one or more of silver paste, silver, tin, copper, nickel, and alloys. This is not limited in this application. It should be further understood that the non-metallic elastic material for fabricating the insulating elastomer may be any one or more of silicone rubber, nitrile butadiene rubber, or fluorosilicone rubber. This is not limited in this application.

[0046] In this embodiment of the present application, the insulating elastomer may have a solid structure, and the surface of the solid structure may be a plane or an arc shape, for example, a three-dimensional structure of a sphere, an ellipsoid, a cylinder, a cube, or an irregular shape. Alternatively, the insulating elastomer may be a three-dimensional structure provided with through holes, blind vias, etc. For example, the insulating elastomer is a ring-shaped structure. It should be understood that the ring-shaped structure may be circular, square, triangular, irregular in shape, etc. This is not limited in this application. In another example, the insulating elastomer may be an arch-shaped structure, an inverted U-shaped structure, a cap, etc. This is not limited in this application.

[0047] In this embodiment of the present application, the inner conductor covering the surface of the insulating elastomer includes the inner conductor covering part or all of the surface of the insulating elastomer. This is not limited in this application. As the material of the inner conductor, the conductive medium material may be a material having good electrical performance and easy to combine with the insulating elastomer, such as various metal coatings such as silver paste.

[0048] Regarding the thickness of the inner conductor, the influence of the skin effect of the high-frequency signal is considered, and the thickness of the inner conductor may be greater than the skin depth. For example, when the conductive medium material of the inner conductor is silver paste and the frequency of the signal transmitted through the inner conductor is 2.6 GHz, the thickness of the silver paste may be about 20 μm to 25 μm.

[0049] Therefore, an inner conductor and an insulating elastomer are combined to form a connection end portion. Based on the elastic performance of the insulating elastomer, the connection end portion has good elastic resilience during compression deformation. This ensures high reliability of the connection end portion when the connection end portion is configured for connection. For example, when the connection device is configured to connect devices, problems such as assembly tolerances between devices, unevenness and roughness of the device surface do not affect normal connection and signal transmission between the inner conductor and the device. In other words, high reliability of the connection is ensured. In addition, since the insulating elastomer can maintain good elastic resilience even when it is small, it can meet the requirements of miniaturization, and connection with a low stacking height can be realized. In addition, the connection device has a simple structure, is easy to manufacture, and has a low manufacturing cost. This can meet the requirements of low cost.

[0050] Optionally, the connection device further includes a structural component. The structural component may be fastened to the device through a fastener. In other words, the structural component is configured to fix the aforementioned device to ensure the stability of the connection between the devices. The structural component may be a different structure from the conductor assembly and the fastening structure. Alternatively, the structural component may be a part of the structure of the conductor assembly, such as an outer conductor. In other words, the outer conductor performs fastening, shielding and insulation, as well as impedance matching. Alternatively, the structural component is a fastening structure. In other words, the fastening structure functions as the fastening between the conductor assembly and the device.

[0051] It should be understood that the method of covering the surface of the insulating elastomer with the inner conductor and / or the outer conductor may be at least one of extrusion molding, electroplating, coating, sputtering, vapor deposition, and pad printing. This is not limited in this application.

[0052] In the following, an example in which the connection device is configured to connect two PCB boards arranged in parallel will be used to describe the connection device provided in this application.

[0053] To implement an electrical connection between a PCB substrate and a connection device, an interface is disposed on the surface of the PCB substrate. For example, FIG. 3 is a top view of the interface on the PCB board. The interface is used for the electrical connection between the PCB substrate and the connection device. As shown in FIG. 3, it includes an outer conductor connection interface 301, an insulating region 302, and an inner conductor connection interface 303.

[0054] To ensure the reliability of the connection between the interface and the connection device, for example, in a vibration scenario, it should be understood that the sizing of the outer conductor connection interface and the inner conductor connection interface in the interface needs to ensure that the electrical connection to the corresponding structure of the connection device is not interrupted. For example, among the inner conductors included in the connection device, the portion in contact with the inner conductor connection interface is circular. This portion is abbreviated as the inner conductor contact portion. Among the outer conductors included in the connection device, the portion in contact with the outer conductor connection interface is ring-shaped. This portion is abbreviated as the outer conductor contact portion. In addition, when the inner conductor connection interface and the outer conductor connection interface are in the shapes shown in FIG. 3, to ensure that the connection between the interface and the connection device is not interrupted, the diameter of the inner conductor connection interface 303 may be larger than the diameter of the circular inner conductor contact portion, and the inner diameter of the outer conductor connection interface 301 may be smaller than the inner diameter of the circular ring-shaped outer conductor contact portion.

[0055] It should be understood that the interface shown in FIG. 3 may alternatively be provided on a device connected to another connection device such as a filter. This is not limited in this application.

[0056] FIG. 4 shows a schematic structural diagram of a specific example of a radio frequency module according to the present application.

[0057] Figure 4 shows a cross-sectional view of a radio frequency module. The radio frequency module includes a connection device and upper device 41 and lower device 42. The connection device includes conductor assembly 44 and fastening post 45. Optionally, the connection device may further include structural component 43.

[0058] Referring to Figure 5, the connection device corresponding to Figure 4 is described below. In other words, Figure 5 shows a schematic structural diagram of a specific example of the connection device according to the present application.

[0059] Figures 5(a) and 5(b) are a cross-sectional view and a top view of the connection device, respectively. The connection device includes conductor assembly 51 and fastening post 53. Optionally, the connection device may further include structural component 52.

[0060] Structural component 52 may be a circular ring-shaped columnar structure, and may be connected to upper device 41 and lower device 42 in Figure 4 through a fastener such as a screw, bolt, stud, or rivet, that is, a fastener that enables the structural component to be connected and fastened to the device. This is not limited in the present application.

[0061] Fastening post 53 may be a cylindrical structure, and may be fastened to device 42 in Figure 4 and function as fastening and positioning of conductor assembly 51. Optionally, the method of fastening and connecting the fastening post and the device includes welding, press riveting, injection molding, etc. This is not limited in the present application.

[0062] Optionally, fastening post 53 and conductor assembly 51 are coaxially arranged and in an insertion structure. The fastening post and the conductor assembly may be an interference fit. In other words, the diameter of fastening post 53 is larger than the inner diameter of conductor assembly 51 to prevent the dropping of conductor assembly 51.

[0063] Below, the structure of conductor assembly 51 will be described.

[0064] In a specific example, the conductor assembly 51 has a circular ring-shaped columnar structure and includes an insulating elastomer 511, an inner conductor 512, and an outer conductor 513. The insulating elastomer 511 has a circular ring-shaped columnar structure, and the inner conductor 512 and the outer conductor 513 cover the inner surface and the outer surface of the insulating elastomer 511 respectively, that is, they cover the inner surface and the outer surface of the insulating elastomer 511 respectively.

[0065] When the conductor assembly is configured to connect devices, for example, when the conductor assembly 51 is connected to the interface shown in FIG. 3, one end of the inner conductor 512 of the conductor assembly 51 contacts the inner conductor connection interface 303 of the interface to implement an electrical connection, and one end of the outer conductor 513 contacts the outer conductor connection interface 301 of the interface to implement an electrical connection. The electrical insulation between the inner conductor and the outer conductor is implemented through the insulating elastomer. In this case, the conductor assembly 51 can implement electrical connection and signal transmission between devices, that is, it can implement electrical connection and signal transmission between PCB substrates. Optionally, the contact method between one end of the inner conductor 512 and the inner conductor connection interface 303 may be pressing and abutting, and the contact method between one end of the outer conductor 513 and the outer conductor connection interface 301 may be pressing and abutting.

[0066] To enable the conductor assembly to be in full contact with the device and improve the reliability of signal transmission between devices implemented by the conductor assembly, the outer diameter of one end of the inner conductor 512 of the conductor assembly 51 may be set to be smaller than the diameter of the inner conductor connection interface 303, and the inner diameter of one end of the outer conductor 513 is larger than the inner diameter of the outer conductor connection interface 301.

[0067] Regarding the method of manufacturing the conductor assembly 51, possible implementation forms are as follows. First, extrusion is performed with a non-metallic elastic material and a conductive medium layer. Subsequently, machining is carried out to obtain a circular ring-shaped columnar structure of a specific length, for example, a circular ring-shaped columnar structure with a length of about 2 mm. In this case, the inner surface and the outer surface of the circular ring-shaped columnar structure are each covered with a conductive medium layer. The conductive medium layer on the inner surface is the inner conductor, and the conductive medium layer on the outer surface is the outer conductor.

[0068] Optionally, as shown in FIGS. 6 and 7, the end faces of the aforementioned conductor assembly 51 may alternatively be covered with a conductive medium layer. As a result, the inner conductor and the outer conductor of the conductor assembly are in complete contact with the inner conductor connection interface and the outer conductor connection interface of the upper device and the lower device, improving the reliability of signal transmission between the upper device and the lower device implemented by the conductor assembly.

[0069] FIG. 6 shows a schematic structural diagram of another specific example of the radio frequency module according to the present application, and FIG. 7 shows a schematic structural diagram of another specific example of the connection device according to the present application.

[0070] It should be noted that a part of the structure of the radio frequency module shown in FIG. 6 is the same as a part of the structure of the radio frequency module shown in FIG. 4, and a part of the structure of the connection device shown in FIG. 7 is the same as a part of the structure of the connection device shown in FIG. 5. Therefore, for the structures of FIGS. 6 and 7, reference is made to the descriptions of FIGS. 4 and 5, and details will not be repeatedly described in this specification.

[0071] FIG. 6 is a cross-sectional view of a radio frequency module. The radio frequency module includes a connection device, as well as an upper device 61 and a lower device 62. The connection device includes a conductor assembly 64 and a fastening post 65. Optionally, the connection device may further include a structural component 63.

[0072] Referring to FIG. 7, the connection device corresponding to FIG. 6 will be described below. In other words, FIG. 7 shows a schematic structural diagram of a specific example of the connection device according to the present application.

[0073] FIGS. 7(a) and 7(b) are a cross-sectional view and a top view of the connection device, respectively. The connection device includes a conductor assembly 71 and a fastening post 73. Optionally, the connection device may further include a structural component 72.

[0074] For the description of the structural component 72 and the fastening post 73 in FIG. 7, please refer to the specific description of the corresponding structure in FIG. 5. In other words, 52 and 53 are replaced by 72 and 73.

[0075] Unlike the conductor assembly 51 in FIG. 5, the end of the conductor assembly 71 in FIG. 7 is covered with a conductive medium. In a specific example, the conductor assembly 71 is a circular ring-shaped columnar structure and includes an insulating elastomer 711, inner conductors 712 and 714, and outer conductors 713 and 715.

[0076] The insulating elastomer 711 is a circular ring-shaped columnar structure, and the inner conductor and the outer conductor cover the surface of the insulating elastomer. In addition, the inner conductor further includes an inner conductor 714 on the inner surface and an inner conductor 712 on the end face, and the inner conductor 714 and the inner conductor 712 are electrically connected to each other. The outer conductor further includes an outer conductor 715 on the outer surface and an outer conductor 713 on the end face, and the outer conductor 715 and the outer conductor 713 are also electrically connected to each other. In addition, there is a gap between the inner conductor 712 on the end face and the outer conductor 713 on the end face. In other words, the inner conductor and the outer conductor are electrically insulated from each other.

[0077] When the conductor assembly is configured to connect devices, for example, when the conductor assembly 71 is connected to the interface shown in FIG. 3, the inner conductor 712 on the end face of the conductor assembly 71 contacts the inner conductor connection interface 303 to establish an electrical connection, and the outer conductor 713 on the end face contacts the outer conductor connection interface 301 to establish an electrical connection. In this case, the conductor assembly 71 can perform electrical connection and signal transmission between devices, that is, it can perform electrical connection and signal transmission between PCB substrates. Optionally, the contact method between the inner conductor 712 on the end face and the inner conductor connection interface 303 may be pressing and abutting, and the contact method between the outer conductor 713 on the end face and the outer conductor connection interface 301 may also be pressing and abutting.

[0078] To enable the conductor assembly to be in complete contact with the device and improve the reliability of signal transmission between devices performed by the conductor assembly, the outer diameter of the inner conductor 712 on the end face of the conductor assembly 71 may be set to be smaller than the diameter of the inner conductor connection interface 303, and the inner diameter of the outer conductor 713 on the end face of the conductor assembly 71 may be set to be larger than the inner diameter of the outer conductor connection interface 301.

[0079] Regarding the manufacturing method of the conductor assembly 71, possible implementation forms are as follows. First, extrusion molding is performed with a non-metallic elastic material and a conductive medium layer. Subsequently, cutting is performed to obtain a circular ring-shaped columnar structure of a specific length, for example, a circular ring-shaped columnar structure with a length of about 2 mm. In this case, the inner and outer surfaces of the circular ring-shaped columnar structure are each covered with a conductive medium layer. The conductive medium layer on the inner surface is the inner conductor, and the conductive medium layer on the outer surface is the outer conductor. Finally, after silver paste is coated or printed on both ends of the structure, baking is performed to obtain the inner conductor on the end face and the outer conductor on the end face.

[0080] FIG. 8 shows a schematic structural diagram of another specific example of the radio frequency module according to the present application.

[0081] FIG. 8 is a cross-sectional view of a radio frequency module. The radio frequency module includes a connecting device, as well as an upper device 81 and a lower device 82. The connecting device includes conductor assemblies 83 and 84, as well as a fastening post 85.

[0082] In a specific example, the conductor assembly specifically includes an outer conductor 83, as well as an inner conductive component 84 formed by an inner conductor and an insulating elastomer. In this case, the outer conductor 83 may also be referred to as a structural component. In other words, in addition to functioning as a shield, insulation, and impedance matching, the outer conductor 83 may be configured to fix the upper device 81 and the lower device 82. The outer conductor 83 shown in FIG. 8 has a circular ring-shaped columnar structure. As a structural component, there is a specific distance between the outer conductor 83 and the inner conductive component 84. In other words, the outer conductor does not contact the inner conductive component, ensuring electrical insulation between the inner conductor and the outer conductor. In addition, the outer conductor 83 is connected to the upper device 81 and the lower device 82 through fasteners such as screws, bolts, studs, rivets, that is, fasteners that enable the outer conductor to be connected and fastened to the device. This is not limited in this application.

[0083] Referring to FIG. 9, the connecting device corresponding to FIG. 8 is described below. In other words, FIG. 9 shows a schematic structural diagram of a specific example of the connecting device according to the present application.

[0084] FIGS. 9(a) and 9(b) are a cross-sectional view and a top view of the connecting device, respectively. The connecting device includes a conductor assembly 91, a conductor assembly 92, and a fastening post 93. The conductor assembly includes an outer conductor 92, as well as an inner conductive component 91 formed by an inner conductor and an insulating elastomer.

[0085] It should be understood that the conductor assemblies 91 and 92 are the same as the conductor assemblies 84 and 83 in FIG. 8 respectively. For the description of the conductor assemblies 91 and 92, please refer to the relevant description in FIG. 8.

[0086] Optionally, the fastening post 93 has a cylindrical structure and may be fastened to the device 82 in FIG. 8 to function as fastening and positioning of the inner conductive component 91. Optionally, the methods of fastening and connecting the fastening post and the device include welding, press riveting, injection molding, etc. This is not limited in this application.

[0087] Optionally, the fastening post 93 and the inner conductive component 91 are coaxially arranged and in an insertion structure. To prevent the inner conductive component 91 from falling off, the fastening post and the inner conductive component are in an interference fit. In other words, the diameter of the fastening post 93 is larger than the inner diameter of the inner conductive component 91.

[0088] The structure of the inner conductive component 91 will be described below.

[0089] In a specific example, the inner conductive component 91 has a circular ring-shaped columnar structure and includes an insulating elastomer 911, and inner conductors 912, 913, and 914. The insulating elastomer 911 has a circular ring-shaped columnar structure, and the inner conductors 912, 913, and 914 cover the end face, inner surface, and outer surface of the insulating elastomer respectively. In other words, the inner conductors completely cover the insulating elastomer.

[0090] When the conductor assembly is configured to connect devices, for example, when the outer conductor 92 and the inner conductive component 91 are connected to the interface shown in FIG. 3, the inner conductor 912 included in the inner conductive component 91 contacts the inner conductor connection interface 303 to implement an electrical connection, and one end of the outer conductor 92 contacts the outer conductor connection interface 301 to implement an electrical connection. In this case, the conductor assembly can implement electrical connection and signal transmission between devices, that is, it can implement electrical connection and signal transmission between PCB substrates. Optionally, the contact method between the inner conductor 912 and the inner conductor connection interface 303 may be pressing and abutting, and the contact method between the outer conductor 92 and the outer conductor connection interface 301 may be pressing and abutting through a fastener.

[0091] To enable the conductor assembly to be in complete contact with the device and improve the reliability of signal transmission between devices implemented by the conductor assembly, the outer diameter of one end of the inner conductor 912 may be set to be smaller than the diameter of the inner conductor connection interface 303, and the inner diameter of one end of the outer conductor 92 is larger than the inner diameter of the outer conductor connection interface 301.

[0092] Regarding the manufacturing method of the inner conductive component 91, possible implementation forms are as follows. First, extrusion molding is performed with a non-metallic elastic material and a conductive medium layer. Subsequently, machining is performed to obtain a circular ring-shaped columnar structure of a specific length, for example, a circular ring-shaped columnar structure with a length of about 2 mm. In this case, the inner and outer surfaces of the circular ring-shaped columnar structure are each covered with a conductive medium layer. Each of the conductive medium layers is an inner conductor. Finally, after silver paste is coated or printed on both ends of the structure, baking is performed to obtain the inner conductor on the end face.

[0093] FIG. 10 shows a schematic structural diagram of another specific example of the radio frequency module according to the present application.

[0094] FIG. 10 is a cross-sectional view of a radio frequency module. The radio frequency module includes a connecting device, as well as an upper device 101 and a lower device 102. The connecting device includes conductor assemblies 103 and 104, as well as a fastening post 105.

[0095] Optionally, the conductor assembly specifically includes an outer conductor 103, as well as an inner conductive component 104 formed by an inner conductor and an insulating elastomer. In this case, the outer conductor 103 may also be referred to as a structural component. In other words, in addition to functioning as a shield, insulation, and impedance matching, the outer conductor 103 may be configured to fix the upper device 101 and the lower device 102. The outer conductor 103 shown in FIG. 10 has a circular ring-shaped columnar structure. As a structural component, there is a specific distance between the outer conductor 103 and the inner conductive component 104. In other words, the outer conductor does not contact the inner conductive component, ensuring electrical insulation between the inner conductor and the outer conductor. In addition, the outer conductor 103 is connected to the upper device 101 and the lower device 102 through fasteners such as screws, bolts, studs, rivets, that is, fasteners that enable the outer conductor to be connected and fastened to the device. This is not limited in this application.

[0096] Referring to FIG. 11, the connecting device corresponding to FIG. 10 is described below. In other words, FIG. 11 shows a schematic structural diagram of a specific example of the connecting device according to the present application.

[0097] FIGS. 11(a) and 11(b) are a cross-sectional view and a top view of the connecting device, respectively. The connecting device includes a conductor assembly 111, a conductor assembly 112, and a fastening post 113. The conductor assembly includes an outer conductor 112, as well as an inner conductive component 111 formed by an inner conductor and an insulating elastomer.

[0098] It should be understood that the conductor assemblies 111 and 112 are the same as the conductor assemblies 104 and 103 in FIG. 10 respectively. For the description of the conductor assemblies 111 and 112, please refer to the relevant description in FIG. 10.

[0099] In a specific example, the fastening post 113 has a cylindrical stepped structure and is connected and fastened to the device 102 in FIG. 10, and may function as the fastening and positioning of the inner conductive component 111. Optionally, the methods of fastening and connecting the fastening post and the device include welding, press riveting, injection molding, etc. This is not limited in this application.

[0100] In a specific example, the fastening post 113 and the inner conductive component 111 are coaxially arranged and in an insertion structure. To prevent the inner conductive component 111 from falling off, the fastening post and the inner conductive component are in an interference fit. In other words, the diameter of the upper structure of the fastening post 113 is larger than the diameter of the hole of the inner conductive component 111.

[0101] The structure of the inner conductive component 111 will be described below.

[0102] In a specific example, the inner conductive component 111 has an arched columnar structure and includes an insulating elastomer 1111 and an inner conductor 1112. The insulating elastomer 1111 has an arched columnar structure with a hole at one end, and the inner conductor 1112 covers the outer surface of the insulating elastomer 1111. Optionally, the inner conductor 1112 may further cover the inner surface of the insulating elastomer 1111.

[0103] An arched structure is used at the upper part of the inner conductive component, and as a result, the rebound force of the inner conductive component due to compression can be reduced. Therefore, when the inner conductive component is configured to connect the device, the deformation of the part of the device in contact with the inner conductive component can be reduced.

[0104] Optionally, the inner conductor 1112 is connected to the fastening post 113. When configured to connect devices, the fastening post 113 may use a conductive medium, and as a result, in addition to functioning as fastening and positioning, the fastening post can perform electrical connection and signal transmission. Additionally, since the fastening post is stepped, the stacking height can be easily adjusted. For example, when the distance between devices needs to be adjusted, the height of the inner conductive component does not need to be adjusted, and the change in the distance between devices can be adapted by adjusting the height of the fastening post.

[0105] When the conductor assembly is configured to connect devices, for example, when the outer conductor 112 and the inner conductive component 111 are connected to the interface shown in FIG. 3, the inner conductor 1112 included in the inner conductive component 111 makes contact with the inner conductor connection interface 303 to effect an electrical connection, and one end of the outer conductor 112 makes contact with the outer conductor connection interface 301 to effect an electrical connection. In this case, the conductor assembly can perform electrical connection and signal transmission between devices, that is, it can perform electrical connection and signal transmission between PCB substrates. Optionally, the contact method between the inner conductor 1112 and the inner conductor connection interface 303 may be pressing and abutting, and the contact method between the outer conductor 112 and the outer conductor connection interface 301 may be pressing and abutting through a fastener.

[0106] To enable the conductor assembly to fully contact the device and improve the reliability of signal transmission between the devices implemented by the conductor assembly, the outer diameter of one end of the inner conductor 1112 in the top view of FIG. 11(b) may be set to be smaller than the diameter of the inner conductor connection interface 303, and the inner diameter of one end of the outer conductor 112 is larger than the inner diameter of the outer conductor connection interface 301.

[0107] Regarding the manufacturing method of the inner conductive component 111, possible implementation forms are as follows. First, through compression molding, a non-metallic elastic material is used to fabricate an insulating elastomer with an arch-shaped structure. Subsequently, a conductive medium layer is applied to the outer surface of the insulating elastomer through coating or electroplating. The conductive medium layer is the inner conductor.

[0108] For ease of explanation, it will be understood that the radio frequency module in the accompanying drawings of this application includes an upper device and a lower device connected to a connecting device. However, it is not limited in this application that the radio frequency module must necessarily include two devices connected to the connecting device, and there may be one or more devices connected to the connecting device.

[0109] In multiple embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the described embodiments of the device are merely examples. For example, the division of units is only a logical function division, and in actual implementation forms, there may be other divisions. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the indicated mutual coupling or direct coupling or communication connection may be implemented through some interfaces. The indirect coupling or communication connection between devices or units may be implemented in an electronic form or other forms.

[0110] The foregoing description is only a specific implementation form of this application and is not intended to limit the protection scope of this application. Any deformation or substitution that can be easily conceived by those skilled in the art within the technical scope disclosed in this application shall fall within the protection scope of this application. Therefore, the protection scope of this application shall follow the protection scope of the claims.

Description of Reference Signs

[0111] 1 Elastic contact pin 2 Inner core 3 - Circuit Board 10 - Insertion End 20 - Connection Bar 30 - Import End 40 - Circuit Board 41 - Upper Device 42 - Lower Device 43 - Structural Component 44 - Conductor Assembly 45 - Fastening Post 51 - Conductor Assembly 52 - Structural Component 53 - Fastening Post 61 - Upper Device 62 - Lower Device 63 - Structural Component 64 - Conductor Assembly 65 - Fastening Post 71 - Conductor Assembly 72 - Structural Component 73 - Fastening Post 81 - Upper Device 82 - Lower Device 83 - Conductor Assembly 84 - Conductor Assembly, Inner Conductive Component 85 - Fastening Post 91 - Conductor Assembly, Inner Conductive Component 92 - Conductor Assembly, Outer Conductor 93 - Fastening Post 101 - Upper Device 102 - Lower Device 103 - Conductor Assembly, Outer Conductor 104 - Conductor Assembly, Inner Conductive Component 105 - Fastening Post 111 - Conductor Assembly, Inner Conductive Component 112 - Conductor Assembly, Outer Conductor 113 - Fastening Post 301 - Outer Conductor Connection Interface 302 - Insulation Region 303 - Inner Conductor Connection Interface 511 - Insulating Elastomer 512 - Inner Conductor 513 Outer Conductor 711 Insulating Elastomer 712 Inner Conductor 713 Outer Conductor 714 Inner Conductor 715 Outer Conductor 911 Insulating Elastomer 912 Inner Conductor 913 Inner Conductor 914 Inner Conductor 1111 Insulating Elastomer 1112 Inner Conductor

Claims

1. A connecting device, comprising a conductor assembly and a fastening structure configured to connect an upper device and a lower device, the fastening structure being configured to fasten the conductor assembly to the lower device, the conductor assembly comprising an outer conductor, an inner conductor, and an insulating elastomer, the inner conductor covering the surface of the insulating elastomer, the outer conductor and the inner conductor being electrically insulated from each other, a connecting device, wherein the length between one end and the other end of the fastening structure, which is configured to be connected to the lower device, is shorter than the length between one end of the conductor assembly, which is configured to be connected to the lower device, and the other end of the conductor assembly, which is configured to be connected to the upper device.

2. The insulating elastomer has a ring-shaped structure, The connecting device according to claim 1, wherein the inner conductor covers the inner surface of the insulating elastomer.

3. The connecting device according to claim 2, wherein the inner conductor further covers the end face of the insulating elastomer.

4. The connecting device according to claim 2, wherein the outer conductor covers the outer surface of the insulating elastomer.

5. The connecting device according to claim 4, wherein the outer conductor further covers the end face of the insulating elastomer.

6. The fastening structure is at least partially a cylindrical structure and is a fastening post configured to be connected to the lower device, the inner conductor further covering the outer surface of the insulating elastomer, a through hole being provided in the outer conductor, and the inner conductor, the insulating elastomer, and the fastening post being arranged in the through hole, the connecting device according to claim 2.

7. The connecting device according to claim 6, wherein there is an insertion structure between the fastening post and the conductor assembly.

8. The connecting device according to claim 1, wherein a through hole is provided in the fastening structure, and the conductor assembly is arranged in the through hole.

9. The fastening structure is at least partially a cylindrical structure and is a fastening post configured to be connected to the lower device, one end of the insulating elastomer being arc-shaped, the inner conductor covering the outer surface of the arc-shaped end portion of the insulating elastomer, a through hole being provided in the outer conductor, and the inner conductor, the insulating elastomer, and the fastening post being arranged in the through hole, the connecting device according to claim 1.

10. A hole is provided at the other end of the insulating elastomer, The fastening structure is a columnar stepped structure, The connecting device according to claim 9, wherein an insertion structure is formed between the fastening structure and the insulating elastomer through the hole and the columnar stepped structure.

11. The insulating elastomer, The connecting device according to claim 1, comprising silicone rubber, nitrile butadiene rubber, or fluorosilicone rubber.

12. The inner conductor or the outer conductor, The connecting device according to claim 1, comprising silver paste, tin, silver, copper, nickel, or an alloy.

13. A radio frequency module comprising at least one device and at least one connecting device according to any one of claims 1 to 12, The device includes an interface, and the interface includes an inner conductor connection interface, an outer conductor connection interface, and an insulating region. The insulating region insulates the inner conductor connection interface and the outer conductor connection interface, One end of the inner conductor of the connecting device is connected to the inner conductor connection interface, and one end of the outer conductor of the connecting device is connected to the outer conductor connection interface. A radio frequency module.

14. The radio frequency module according to claim 13, wherein the device comprises a circuit board or a filter.

Images