Multi-purpose cluster radio frequency cable assembly based on universal interface and use method of multi-purpose cluster radio frequency cable assembly

Abstract

The invention relates to the technical field of radio frequency connection, and particularly discloses a multipurpose cluster radio frequency cable assembly based on a universal interface and a use method. Comprising a cluster radio-frequency connector socket provided with a plurality of groups of mounting holes, radio-frequency cable assembly first-class branches and radio-frequency cable assembly second-class branches which are detachably mounted in the mounting holes, and plugs which are detachably mounted in the mounting holes and are used for plugging the mounting holes. According to the invention, different requirements on installation space and transmission loss in radio frequency signal transmission in electronic equipment are met, DC-18GHz radio frequency signals can be transmitted, and the characteristics of single model specification and good universality of external interfaces of the electronic equipment are maintained, and the characteristics of simple structure and good universality of a system cable externally connected with a chassis of the electronic equipment are also maintained.

Description

Technical Field

[0001] The present invention relates to the field of radio frequency connection technology, and in particular to a multi-purpose clustered radio frequency cable assembly based on a universal interface and a use method thereof. Background Art

[0002] At present, in the field of RF cable connection technology, the input and output of multiple RF signals in electronic equipment are generally realized through clustered RF cable assemblies. Clustered RF cable assemblies are composed of circular clustered RF connectors, RF contacts, RF cables, single-core RF connectors, etc. Common clustered RF cable assemblies include 9-core and 19-core ones. Through a clustered RF cable assembly, 9-channel and 19-channel RF signals can be transmitted respectively. Among them, the RF contact installation hole position on the circular clustered RF connector in the 9-core clustered RF cable assembly is 10#, and the RF contact installed therein can be matched with an RF cable with a larger outer diameter. Among them, the RF contact installation hole position on the circular clustered RF connector in the 19-core clustered RF cable assembly is 12#, and the RF contact installed therein can be matched with an RF cable with a smaller outer diameter. The application of clustered RF cable assemblies can greatly reduce the number of connectors and cables, save the installation space of electronic equipment panels, improve the efficiency of cable assembly installation and disassembly, and solve the problem that single-core RF cable assemblies are easily damaged during installation.

[0003] However, for the circular clustered RF connector in the existing clustered RF cable assembly, when the model of the circular clustered RF connector is determined, the specifications of its RF contact mounting holes and the arrangement of the RF contact nodes are also determined at the same time, that is, its external interface is also determined at the same time. Since the RF cables used in the 9-core clustered RF cable assembly and the 19-core clustered RF cable assembly are different, and the RF cables with different structural parameters have significant differences in outer diameter, bending radius, and attenuation coefficient. Specifically, when the outer diameter of the RF cable is smaller, its minimum allowable bending radius is also smaller, but its attenuation coefficient will be larger; and when the outer diameter of the RF cable is larger, its minimum allowable bending radius is also larger, but its attenuation coefficient will be smaller. The minimum bending radius of the RF cable determines the size of the space occupied by the clustered RF cable assembly when it is installed. Therefore, when designing for product miniaturization, RF cables with smaller bending radius are generally selected to reduce the space occupied by the RF cable when it is installed. The transmission loss of RF signals in clustered RF cable assemblies is mainly related to the attenuation coefficient of RF cables. Therefore, when designing low-loss RF signals in products, RF cables with larger outer diameters, larger bending radiuses, but smaller attenuation coefficients are generally selected to achieve the purpose of reducing RF signal transmission losses. At present, with the gradual improvement of electronic equipment indicators and product integration, it is often necessary to make trade-offs in the installation space of RF cables and the loss of RF signals according to actual conditions. Since the requirements for the installation space and RF signal loss of different parts and different connection links on the same electronic equipment chassis are not exactly the same, there are often multiple different trade-off selection results on the same electronic equipment chassis. If different types of circular clustered RF connectors are used to connect RF cables of different models and different structural sizes to meet these different RF connection transmission requirements, the number of categories of external interfaces of the electronic equipment chassis is increased, thereby reducing the universality of the external interfaces of the electronic equipment chassis and increasing the complexity and diversity of the system cables of the electronic equipment chassis connecting the chassis externally. The structural form of existing clustered RF cable assemblies is increasingly unable to meet the development needs of new products. There is an urgent need for a multi-purpose clustered RF cable assembly based on a universal interface to flexibly meet various RF connection transmission needs, while still maintaining the characteristics of a single external interface specification and good versatility of the electronic equipment chassis, and the simple structure and good versatility of the system cable for external connection of the electronic equipment chassis.

[0004] Utility model patent 202022839637.3 discloses a highly adaptable RF connector, which realizes the connection of multiple devices or cables by dividing the central conductor into several branch conductors in the cavity and installing second connectors of different specifications. In this connector, the inner conductor spreads outward from the center of the mounting part in the cavity and branches to the center of each mounting hole. The structure in which the central conductor is divided into several branch conductors has a sudden change in the characteristic impedance on the transmission path, and cannot meet the transmission of high-frequency signals with a uniformly determined characteristic impedance value for the entire transmission link.

[0005] In addition, the overall interconnection structure of the central conductor and several branch conductors in the connector means that the connector can only transmit a single signal, and cannot simultaneously transmit multiple independent frequency bands and signals of different amplitudes, which limits its application scope. At the same time, the connector is not used on the equipment panel as a device for external input and output signals. Summary of the invention

[0006] The present invention aims to provide a multi-purpose clustered RF cable assembly based on a universal interface and a method of use. The present invention meets the different requirements for installation space and transmission loss in RF signal transmission in electronic equipment, can transmit RF signals of DC to 18 GHz, and maintain the characteristics of a single model and specification of the external interface of the electronic equipment and good versatility, as well as the characteristics of a simple structure and good versatility of the system cable for external connection of the electronic equipment chassis.

[0007] The present invention is achieved by adopting the following technical solutions:

[0008] The present invention provides a multi-purpose clustered RF cable assembly based on a universal interface, comprising a clustered RF connector socket provided with multiple groups of mounting holes, a first type of RF cable assembly branch and a second type of RF cable assembly branch that can be detachably mounted in the mounting holes, and a plug that can be detachably mounted in the mounting holes and is used to seal the mounting holes.

[0009] In some possible implementations, the branch of the RF cable assembly includes a RF contact piece 1, a RF cable 1, and a plug 1 that are detachably installed in the installation hole; the RF contact piece 1, the RF cable 1, and the plug 1 are connected in sequence.

[0010] In some possible implementations, the second branch of the RF cable assembly includes a second RF contact piece, a second RF cable, and a second plug that are detachably installed in the mounting hole; the second RF contact piece, the second RF cable, and the second plug are connected in sequence.

[0011] In some possible implementations, the outer diameter of the RF cable 1 is different from the outer diameter of the RF cable 2, the bending radius of the RF cable 1 is different from the bending radius of the RF cable 2; the attenuation coefficient of the RF cable 1 is different from the attenuation coefficient of the RF cable 2.

[0012] In some possible implementations, the outer diameter of the RF cable 1 is smaller than the outer diameter of the second branch of the RF cable assembly, and the bending radius of the RF cable 1 is smaller than the bending radius of the RF cable 2.

[0013] In some possible implementations, the attenuation coefficient of the RF cable 1 is greater than the attenuation coefficient of the RF cable 2.

[0014] In some possible implementations, the characteristic impedance of the first type branch of the RF cable assembly is the same as the characteristic impedance of the second type branch of the RF cable assembly; the characteristic impedance of the RF contact piece 1, RF cable 1, plug 1, RF contact piece 2, RF cable 2, and plug 2 are the same and are all 50Ω.

[0015] The present invention also provides a method for using the above-mentioned multi-purpose clustered radio frequency cable assembly based on a universal interface.

[0016] When seeking a smaller installation space, a clustered RF cable assembly consisting of a clustered RF connector socket and a type-I branch of an RF cable assembly is used to take advantage of the small outer diameter and small bending radius of the RF cable in the type-I branch of the RF cable assembly, so as to achieve the purpose of installing the clustered RF cable assembly in a small space; if there are any remaining installation holes, plugs are installed to seal them.

[0017] In some possible implementations, when seeking lower RF signal transmission loss, a clustered RF cable assembly is formed by connecting a clustered RF connector socket and a Class II branch of an RF cable assembly, taking advantage of the small attenuation coefficient of the RF cable in the Class II branch of the RF cable assembly to achieve the purpose of reducing the RF signal transmission loss; if there are remaining mounting holes, plugs are installed to seal them.

[0018] In some possible implementations, when a smaller installation space is sought for a portion of the RF signal transmission link and a lower RF signal transmission loss is sought for another portion of the RF signal transmission link, a clustered RF cable assembly is composed of a clustered RF connector socket, a first-class branch of an RF cable assembly, and a second-class branch of an RF cable assembly; wherein, some of the mounting holes in the clustered RF connector socket are installed with the first-class branch of the RF cable assembly as a link for seeking a smaller installation space for RF signal transmission, thereby achieving the purpose of installing the clustered RF cable assembly in a small space; another portion of the mounting holes in the clustered RF connector socket are installed with the second-class branch of the RF cable assembly as a link for seeking a lower RF signal transmission loss, thereby achieving the purpose of reducing the RF signal transmission loss; if there are any remaining mounting holes, plugs are installed to seal them.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0020] The present invention can flexibly configure different numbers of RF contacts 1 and RF contacts 2 in the clustered RF connector socket according to the trade-off selection result of the transmission loss and installation space of the RF cable in the electronic device chassis, thereby leading out different numbers of RF cables 1 and RF cables 2 with different minimum bending radius and attenuation coefficient and different specifications, and connecting them to various components at different parts inside the electronic device through the plug 1 and the plug 2, and then installing the clustered RF connector socket on the electronic device chassis panel to input and output the RF signal in the electronic device;

[0021] There is no characteristic impedance mutation in each RF cable branch link in the present invention, and RF signals of DC to 18 GHz can be transmitted, with a wide transmission bandwidth and a wide range of applications; each RF cable branch link is isolated and independent from each other, and can independently transmit RF signals of different frequency bands and amplitudes;

[0022] The multi-purpose clustered radio frequency cable assembly based on a universal interface in the present invention has the advantages of a single external interface model and good versatility, and can enable the system cable for external connection of the electronic equipment chassis to have the advantages of a simple structure and good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the clustered RF connector socket in the present invention;

[0025] Figure 3 It is a structural schematic diagram of a radio frequency contact element 1 in the present invention;

[0026] Figure 4 It is a structural schematic diagram of the radio frequency contact element 2 in the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the plug in the present invention;

[0028] Icon: 1-clustered RF connector socket, 11-mounting hole, 2-RF cable 1, 3-RF cable 2, 4-plug 1, 5-plug 2, 6-RF contact 1, 7-RF contact 2, 8-plug, 9-cylindrical segment. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] like Figure 1-Figure 5 As shown:

[0031] The present invention provides a multi-purpose clustered RF cable assembly based on a universal interface, comprising a clustered RF connector socket 1 provided with multiple groups of mounting holes 11, a first type of RF cable assembly branch and a second type of RF cable assembly branch that can be detachably installed in the mounting holes 11, and a plug 8 that can be detachably installed in the mounting holes 11 and is used to seal the mounting holes 11.

[0032] When in use, according to the use requirements, the first branch of the RF cable assembly and / or the second branch of the RF cable assembly are connected to the clustered RF connector socket 1, and the remaining mounting holes 11 are blocked with plugs 8;

[0033] In some possible implementations, the RF cable assembly type I branch includes a RF contact piece 6, a RF cable 2, and a plug 4 that can be detachably installed in the mounting hole 11; the RF contact piece 6, the RF cable 2, and the plug 4 are connected in sequence; the RF contact piece 6 can be installed in the mounting hole 11, and the RF contact piece 6 can be matched with the RF cable 2;

[0034] In some possible implementations, the second branch of the RF cable assembly includes a RF contact 2 7, a RF cable 2 3, and a plug 2 5 that can be detachably installed in the mounting hole 11; the RF contact 2 7, the RF cable 2 3, and the plug 2 5 are connected in sequence; the RF contact 2 7 can be installed in the mounting hole 11, and the RF contact 2 7 can be matched with the RF cable 2 3;

[0035] Furthermore, the clustered RF connector socket 1 is circular and is designed based on the J599 III series universal interface. The specification of the mounting hole 11 arranged therein is 12#.

[0036] Furthermore, after the plug 8 is installed in the mounting hole 11, its front end surface is flush with the inner cavity of the mating surface of the clustered RF connector socket 1, which does not affect the external connection of the clustered RF connector socket 1 with a universal system cable assembly.

[0037] In some possible embodiments, the outer diameter of the RF cable 2 is different from the outer diameter of the RF cable 23, and the bending radius of the RF cable 2 is different from the bending radius of the RF cable 23; the attenuation coefficient of the RF cable 2 is different from the attenuation coefficient of the RF cable 23; the characteristic impedance of the first branch of the RF cable assembly is the same as the characteristic impedance of the second branch of the RF cable assembly; the characteristic impedance of the RF contact 16, RF cable 12, plug 14, RF contact 27, RF cable 23, and plug 25 are all the same and are all 50Ω.

[0038] In some possible implementations, the outer diameter of the RF cable 1 2 is smaller than the outer diameter of the RF cable 2 3 , and the bending radius of the RF cable 1 2 is smaller than the bending radius of the RF cable 2 3 .

[0039] In some possible implementations, the attenuation coefficient of the RF cable 1 2 is greater than the attenuation coefficient of the RF cable 2 3 .

[0040] The RF contact piece 1 6 , the RF contact piece 2 7 and the plug 8 are respectively provided with cylindrical sections 9 which are adapted to the mounting hole 11 and have the same outer diameter.

[0041] One end of the RF cable 2 is connected to the RF contact piece 6 and installed in the mounting hole 11 of the clustered RF connector socket 1, and the other end is connected to the plug 4, thereby forming a branch link of the RF cable assembly. The link can transmit RF signals of DC to 18 GHz, and the characteristic impedance of each component in the entire link is 50Ω, which can ensure that the RF signal will not be deteriorated due to the change of the characteristic impedance when it propagates therein.

[0042] Similarly, one end of the RF cable 23 is connected to the RF contact 27 and inserted into the mounting hole 11 of the clustered RF connector socket 1, and the other end is connected to the plug 25 to form a Class II branch link of the RF cable assembly; this link can transmit RF signals of DC to 18 GHz, and the characteristic impedance of each component in the entire link is 50Ω, which can ensure that the RF signal will not be deteriorated due to changes in the characteristic impedance when it propagates therein.

[0043] Through the above arrangement, the RF cable branch links installed in the mounting holes 11 in the clustered RF connector socket 1 are isolated and independent from each other, and can independently transmit RF signals with different frequency bands and amplitudes.

[0044] Furthermore, the plug 8 is made of gold-plated brass, and when installed in the mounting hole 11 , it can be connected to the base metal material of the clustered RF connector socket 1 to prevent the RF signal from leaking out of the mounting hole 11 , thereby ensuring the electromagnetic compatibility of the clustered RF connector socket 1 .

[0045] Furthermore, plug one 4 and plug two 5 are both single-core RF connector plugs;

[0046] Since the outer diameter, bending radius, and attenuation of RF cable 1 2 in the first branch of RF cable assembly and RF cable 2 3 in the second branch of RF cable assembly are different, the following operations can be performed during use:

[0047] When seeking a smaller installation space, a clustered RF cable assembly is formed by connecting a clustered RF connector socket 1 and a branch of a RF cable assembly, taking advantage of the small outer diameter and small bending radius of the RF cable 2 in the branch of the RF cable, so as to achieve the purpose of installing the clustered RF cable assembly in a small space; if there are remaining installation holes 11 (installation holes 11 of the branch of the RF cable assembly not installed), plugs 8 are installed to seal them.

[0048] When seeking lower RF signal transmission loss, a clustered RF cable assembly is formed by connecting a clustered RF connector socket 1 and a Class II branch of an RF cable assembly, taking advantage of the small attenuation coefficient of the RF cable 2 3 in the Class II branch of the RF cable assembly to achieve the purpose of reducing the RF signal transmission loss; if there are remaining installation holes 11 (installation holes 11 of the Class II branch of the RF cable assembly are not installed), plugs 8 are installed to seal them.

[0049] When a smaller installation space is sought for a part of the RF signal transmission link and a lower RF signal transmission loss is sought for another part of the RF signal transmission link, a clustered RF cable assembly is composed of a clustered RF connector socket 1, a type I branch of an RF cable assembly, and a type II branch of an RF cable assembly; wherein, some of the mounting holes 11 in the clustered RF connector socket 1 are used to mount the type I branch of the RF cable assembly, taking advantage of the small outer diameter and small bending radius of the RF cable 1 in the type I branch of the RF cable assembly, so as to achieve the purpose of installing the clustered RF cable assembly in a small space; another part of the mounting holes 11 in the clustered RF connector socket 1 are used to mount the type II branch of the RF cable assembly, taking advantage of the small attenuation of the RF cable 2 3 in the type II branch of the RF cable assembly, so as to achieve the purpose of reducing the RF signal transmission loss; if there are remaining mounting holes 11 (mounting holes 11 where the type I branch of the RF cable assembly and the type II branch of the RF cable assembly are not installed), plugs 8 are installed to seal them.

[0050] Embodiment 1:

[0051] According to the installation space of cables in different parts of the electronic equipment chassis and the transmission loss indicators required by different connection links, the selection of type I branch of the RF cable assembly and type II branch of the RF cable assembly is determined, and then a RF contact piece 6 that is compatible with it is assembled on one end of the RF cable 2, and a plug 4 that is compatible with it is assembled on the other end as a type I branch of the RF cable assembly and installed in the corresponding mounting hole 11 in the clustered RF connector socket 1, and a RF contact piece 2 7 that is compatible with it is assembled on one end of the RF cable 2 3, and a plug 2 5 that is compatible with it is assembled on the other end as a type II branch of the RF cable assembly and installed in the corresponding mounting hole 11 in the clustered RF connector socket 1; if the mounting holes 11 in the clustered RF connector socket 1 are still not fully used, plugs 8 are installed in these unused mounting holes 11.

[0052] The above configuration is adopted to form a multi-purpose clustered RF cable assembly based on a universal interface, which is composed of a clustered RF connector socket 1, a RF cable 1 2, a RF cable 2 3, a plug 1 4, a plug 2 5, a RF contact 1 6, a RF contact 2 7, and a plug 8;

[0053] The clustered RF connector socket 1 at one end of a multi-purpose clustered RF cable assembly based on a universal interface is installed on the panel of an electronic device as a universal interface for external input and output of RF signals, and the plug 1 4 and the plug 2 5 at the other end of the multi-purpose clustered RF cable assembly based on a universal interface are respectively connected to components at different parts of the inside of the electronic device, wherein the plug 1 4 connected to the RF cable 1 2 is connected to a component with a relatively narrow outlet space to give full play to the advantage of the small bending radius of the RF cable 1 2 and meet the requirements of wiring in a narrow space; the plug 2 5 connected to the RF cable 2 3 is connected to a component with lower requirements on RF signal transmission loss and relatively ample outlet space to give full play to the advantage of the small attenuation of the RF cable 2 3 and meet the requirements of low loss of RF signal transmission.

[0054] like Figure 1 As shown, no matter how the number of RF contacts 1 6 , RF contacts 2 7 , and plugs 8 installed in the clustered RF connector socket 1 is combined, it does not affect the external interface model category of the chassis, and does not affect the connection of the chassis to the general system cable.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-purpose clustered RF cable assembly based on a universal interface, characterized in that: It includes a clustered RF connector socket with multiple groups of mounting holes, a first-class branch of a RF cable assembly and a second-class branch of a RF cable assembly that can be detachably mounted in the mounting holes, and a plug that can be detachably mounted in the mounting holes and used to seal the mounting holes.

2. The multi-purpose clustered RF cable assembly based on a universal interface according to claim 1, characterized in that: The branch of the RF cable assembly includes a RF contact piece 1, a RF cable 1, and a plug 1 that are detachably installed in the installation hole; the RF contact piece 1, the RF cable 1, and the plug 1 are connected in sequence.

3. The multi-purpose clustered RF cable assembly based on a universal interface according to claim 2, characterized in that: The second branch of the RF cable assembly includes a second RF contact piece, a second RF cable, and a second plug that can be detachably installed in the mounting hole; the second RF contact piece, the second RF cable, and the second plug are connected in sequence.

4. The multi-purpose clustered RF cable assembly based on a universal interface according to claim 3, characterized in that: The outer diameter of the RF cable 1 is different from the outer diameter of the RF cable 2, the bending radius of the RF cable 1 is different from the bending radius of the RF cable 2; the attenuation coefficient of the RF cable 1 is different from the attenuation coefficient of the RF cable 2.

5. The multi-purpose clustered RF cable assembly based on a universal interface according to claim 4, characterized in that: The outer diameter of the RF cable 1 is smaller than the outer diameter of the RF cable 2, and the bending radius of the RF cable 1 is smaller than the bending radius of the RF cable 2.

6. The multi-purpose clustered RF cable assembly based on a universal interface according to claim 4, characterized in that: The attenuation coefficient of the radio frequency cable one is greater than the attenuation coefficient of the radio frequency cable two.

7. The multi-purpose clustered RF cable assembly based on a universal interface according to claim 3, characterized in that: The characteristic impedance of the first branch of the RF cable assembly is the same as that of the second branch of the RF cable assembly; the characteristic impedance of the RF contact piece 1, RF cable 1, plug 1, RF contact piece 2, RF cable 2, and plug 2 is the same and is 50Ω.

8. A method for using a multi-purpose clustered RF cable assembly based on a universal interface according to any one of claims 1 to 7, characterized in that: When seeking a smaller installation space, a clustered RF cable assembly is composed of a clustered RF connector socket, a RF cable assembly and other branches to achieve the purpose of installing the clustered RF cable assembly in a small space; if there are any remaining installation holes, plugs are installed to seal them.

9. The method for using the multi-purpose clustered RF cable assembly based on a universal interface according to claim 8, characterized in that: When seeking lower RF signal transmission loss, a clustered RF cable assembly is composed of a clustered RF connector socket and a Class II branch connection of an RF cable assembly, taking advantage of the small attenuation coefficient of the Class II branch of the RF cable assembly to achieve the purpose of reducing RF signal transmission loss; if there are remaining mounting holes, plugs are installed to seal them.

10. The method for using the multi-purpose clustered RF cable assembly based on a universal interface according to claim 8, characterized in that: When a smaller installation space is sought for a part of the RF signal transmission link, and a lower RF signal transmission loss is sought for another part of the RF signal transmission link, a clustered RF cable assembly is composed of a clustered RF connector socket, a first-class branch of an RF cable assembly, and a second-class branch of an RF cable assembly; wherein, some of the mounting holes in the clustered RF connector socket are installed with the first-class branch of the RF cable assembly as a link for seeking a smaller installation space for RF signal transmission, thereby achieving the purpose of installing the clustered RF cable assembly in a small space; another part of the mounting holes in the clustered RF connector socket are installed with the second-class branch of the RF cable assembly as a link for seeking a lower RF signal transmission loss, thereby achieving the purpose of reducing the RF signal transmission loss; if there are any remaining mounting holes, plugs are installed to seal them.

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