Coaxial attenuation assembly and manufacturing method thereof

Abstract

The invention provides a coaxial attenuation assembly and a manufacturing method thereof, the coaxial attenuation assembly comprises a coaxial line, the coaxial line comprises a fiber core, a first insulating layer and a first shielding layer from inside to outside, at least two fixing parts are formed at the end part of the coaxial line and the first shielding layer, and each fixing part surrounds the fiber core; and the circuit board is arranged at the end part of the coaxial line, the fixing part is fixedly connected with the circuit board, and the fiber core is electrically connected with the circuit board. According to the invention, the connection structure of the coaxial line and the circuit board can be simplified, and the risk that the fiber core of the coaxial line is broken is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of coaxial attenuators, and in particular to a coaxial attenuation component and a manufacturing method thereof. Background Art

[0002] The coaxial attenuator is a measurement tool used in the test of optical isolation probes. The coaxial attenuator includes a connector, a circuit board and a coaxial line. The core of the coaxial line is used to transmit signals. The core of the coaxial line is an extremely thin wire, which is very easy to break during use, resulting in the inability to transmit signals. In related technologies, the coaxial line and the circuit board are connected through a connector, which makes the overall structure complex and increases the manufacturing cost. Summary of the invention

[0003] The present application provides a coaxial attenuation component and a manufacturing method thereof, so as to simplify the connection structure between a coaxial line and a circuit board and reduce the risk of the fiber core of the coaxial line being broken.

[0004] The first aspect of the present application provides a coaxial attenuation component, comprising:

[0005] A coaxial line, the coaxial line comprising a fiber core, a first insulating layer and a first shielding layer from inside to outside, and at an end of the coaxial line, the first shielding layer forms at least two fixing parts, each of which surrounds the fiber core;

[0006] A circuit board is arranged at the end of the coaxial line, the fixing portion is fixedly connected to the circuit board, and the fiber core is electrically connected to the circuit board.

[0007] Optionally, the coaxial attenuation component further includes a coaxial connector, the coaxial connector includes a signal pin, and the signal pin is electrically connected to the circuit board.

[0008] Optionally, the coaxial connector further comprises a second insulating layer, wherein the second insulating layer surrounds the signal pin;

[0009] The coaxial attenuation component further includes an insulating shell, which is sleeved on the outside of the circuit board, and the insulating shell is connected to the second insulating layer.

[0010] Optionally, the coaxial connector further comprises a second shielding layer, the second shielding layer surrounds the signal pin, and the second shielding layer and the signal pin are insulated from each other;

[0011] The coaxial attenuation component further includes a shielding shell, which is sleeved on the outside of the circuit board and is fixedly connected to the second shielding layer.

[0012] Optionally, the shielding shell is fixedly connected to the first shielding layer.

[0013] A second aspect of the present application provides a method for manufacturing a coaxial attenuation component, which comprises:

[0014] Step S10: providing a circuit board and a coaxial line, wherein the coaxial line includes a fiber core, a first insulating layer and a first shielding layer from inside to outside;

[0015] Step S20: peeling off the end of the coaxial line to expose the first shielding layer, the first insulating layer and the fiber core, wherein the first insulating layer or the first shielding layer forms a fixing portion;

[0016] Step S30: fixing the fixing portion to the circuit board;

[0017] Step S40: electrically connecting the fiber core to the circuit board.

[0018] Optionally, the step S20 further includes: dividing the first shielding layer into at least two strands, each strand of the first shielding layer forming one of the fixing portions.

[0019] Optionally, the step S10 further comprises: providing a coaxial connector and an insulating shell, electrically connecting the coaxial connector to the circuit board, and sleeve the insulating shell on the coaxial line;

[0020] After step S40, the method further includes step S50: sliding the insulating shell toward the direction close to the coaxial connector, and fixedly connecting the insulating shell to the coaxial connector.

[0021] Optionally, the step S10 further comprises: providing a coaxial connector and a shielding shell, electrically connecting the coaxial connector to the circuit board, and sleeve the shielding shell on the coaxial line;

[0022] After step S40, the method further includes step S60: sliding the shielding shell toward the direction close to the coaxial connector, first fixing the shielding shell to the coaxial connector, and then fixing the shielding shell to the first shielding layer.

[0023] Optionally, the shielding shell includes a first shell segment and a second shell segment;

[0024] The step S60 includes: fixedly connecting the first shell segment to the coaxial connector, connecting the second shell segment to the first shielding layer, and then connecting the first shell segment to the second shell segment.

[0025] The technical solution provided by this application can achieve the following beneficial effects:

[0026] The coaxial attenuation component of the present application includes a coaxial line and a circuit board; the coaxial line includes a fiber core, a first insulating layer and a first shielding layer from the inside to the outside, and at the end of the coaxial line, the first shielding layer forms at least two fixing parts, each of which surrounds the fiber core; the circuit board is arranged at the end of the coaxial line, the fixing part is fixedly connected to the circuit board, and the fiber core is electrically connected to the circuit board, which simplifies the connection structure between the coaxial line and the circuit board and reduces the production cost; the fixing part surrounds the fiber core and is fixedly connected to the circuit board, so as to support and fix the fiber core on at least two sides, ensure stable and reliable relative fixation between the coaxial line and the circuit board, reduce or avoid relative movement of the coaxial line with the circuit board along the axial direction or radial direction, thereby avoiding the fiber core from being subjected to traction and other forces, and thus avoiding the risk of the fiber core breaking.

[0027] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the structure of a coaxial attenuation component provided in an embodiment of the present application;

[0029] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of the coaxial attenuation component shown;

[0030] Figure 3 for Figure 1 Schematic diagram of the structure without the jacket;

[0031] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure of;

[0032] Figure 5 for Figure 4 A partial enlarged view of

[0033] Figure 6 for Figure 3 Schematic diagram of the explosion structure;

[0034] Figure 7 for Figure 6 A partial enlarged view of

[0035] Figure 8 for Figure 7 Another structural diagram of .

[0036] Reference numerals:

[0037] 1- Coaxial cable;

[0038] 11-fiber core;

[0039] 12- a first insulating layer;

[0040] 121-fixed part;

[0041] 13- first shielding layer;

[0042] 131-fixed part;

[0043] 2- Circuit board;

[0044] 21-groove;

[0045] 3- coaxial connector;

[0046] 31-Signal pin;

[0047] 32- a second insulating layer;

[0048] 33- second shielding layer;

[0049] 4-Insulation shell;

[0050] 5- Shielding shell;

[0051] 51- first shell segment;

[0052] 52-second shell segment;

[0053] 6- Jacket.

[0054] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0056] In the description of this application, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "plurality" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense, for example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0057] In the description of this specification, it should be understood that the directional words such as "upper" and "lower" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0058] like Figure 1-Figure 8 As shown, an embodiment of the present application provides a coaxial attenuation component, which includes a coaxial line 1 and a circuit board 2 (for example, a PCB or PCBA, etc.). The coaxial line 1 includes a fiber core 11, a first insulating layer 12 and a first shielding layer 13 from the inside to the outside. The fiber core 11 is used to transmit signals. The first insulating layer 12 surrounds the fiber core 11 to play a role of protection and insulation. The first shielding layer 13 is used to shield external signals to prevent external signals from interfering with the signals of the fiber core 11; the circuit board 2 is arranged at the end of the coaxial line 1, and the fiber core 11 is electrically connected to the circuit board 2 to form a signal path, and the circuit board 2 realizes signal processing functions such as signal attenuation or conditioning.

[0059] The circuit board 2 can be set as a narrow strip structure, and one end of the strip structure along the length direction is connected to the coaxial line 1; the number, structural form and function of the circuit board 2 can be reasonably designed according to needs, and the coaxial line 1 can be provided with a circuit board 2 only at one end, or at both ends of the coaxial line 1; when the circuit boards 2 are provided at both ends of the coaxial line 1, the circuit boards 2 at both ends can be the same or different. For example, circuit boards 2 are provided at both ends of the coaxial line 1, one of the circuit boards 2 is an attenuation unit, and the other circuit board 2 is a conditioning unit; the two ends of the coaxial line 1 are the input end and the output end, respectively, the attenuation unit is connected to the input end of the coaxial line 1, and the conditioning unit is connected to the output end of the coaxial line 1.

[0060] Furthermore, at the end of the coaxial line 1, the first shielding layer 13 forms at least two fixing parts 131, each fixing part 131 surrounds the fiber core 11. For example, when the number of the fixing parts 131 is two, the first shielding layer 13 is peeled off and divided into two strands, each strand of the first shielding layer 13 forms a fixing part 131, and the two fixing parts 131 are symmetrically distributed on both sides of the fiber core 11; the fixing part 131 is fixedly connected to the circuit board 2, and the fiber core 11 is electrically connected to the circuit board 2, which simplifies the connection structure between the coaxial line 1 and the circuit board 2 and reduces the production cost; the fixing part 131 surrounds the fiber core 11 and is fixedly connected to the circuit board 2, thereby supporting and fixing at least two sides of the fiber core 11, ensuring that the coaxial line 1 and the circuit board 2 are relatively fixed, reducing or avoiding the relative movement of the coaxial line 1 and the circuit board 2 in the axial or radial direction, thereby avoiding the fiber core 11 from being subjected to traction and other forces, and reducing the risk of the fiber core 11 breaking.

[0061] Specifically, a basic connection area and a signal connection area can be respectively set at one end of the circuit board 2 close to the coaxial line 1, the fixing part 131 is connected to the basic connection area, and the fiber core 11 is connected to the signal connection area; the signal connection area is located in the center of the circuit board 2, and the basic connection areas are symmetrically distributed on both sides of the signal connection area.

[0062] Furthermore, welding points can be set in the basic connection area, so that the fixing part 131 and the circuit board 2 are connected to each other by welding, the connection is reliable, and less space is occupied; through holes can be set in the basic connection area, so that the fixing part 131 and the circuit board 2 are fixed by other connecting parts such as cable ties to form a detachable connection, so as to facilitate maintenance or replacement as needed later; the basic connection area can also serve as the grounding connection area of ​​the circuit board 2. When the fixing part 131 is connected to the circuit board 2, the fixed connection and the grounding connection can be achieved at the same time.

[0063] Furthermore, a welding point can be set in the signal connection area, so that the fiber core 11 and the circuit board 2 are connected to each other by welding; a welding interlayer can be set between the fiber core 11 and the circuit board 2. For example, the welding interlayer can be clamped at the end of the fiber core 11 so that the welding interlayer and the signal connection area are welded. The welding interlayer is made of a material that is easy to weld, thereby increasing the reliability of welding.

[0064] Furthermore, the signal connection area may be provided with a groove 21, which extends along the length direction of the circuit board 2 and passes through the edge of the circuit board 2 close to the coaxial line 1, and at least a part of the fiber core 11 is accommodated in the groove 21 to reduce the overall thickness of the circuit board 2 after welding, and reduce the contact stress between the fiber core 11 and the circuit board 2, thereby reducing the risk of breaking the fiber core 11. The groove 21 may pass through the circuit board 2 along the thickness direction of the circuit board 2 to maximize the accommodation space for the fiber core 11.

[0065] Furthermore, at the end of the coaxial line 1 , the unpeeled portion of the first shielding layer 13 or the unpeeled portion of the first insulating layer 12 can form a fixing portion 121 , and the fixing portion 121 and the circuit board 2 are fixed by a cable tie to play a fixing role.

[0066] Furthermore, the coaxial attenuation component also includes a coaxial connector 3, the outer diameter of which is not less than the width of the circuit board 2, so as to facilitate the connection of the coaxial attenuation component with external equipment; the coaxial connector 3 is arranged at one end of the circuit board 2 away from the coaxial line 1, and the coaxial connector 3 is electrically connected to the circuit board 2 to form a signal path.

[0067] Specifically, the coaxial connector 3 includes a signal pin 31, a second insulating layer 32 and a second shielding layer 33 from the inside to the outside. The signal pin 31 is electrically connected to the circuit board 2, so as to achieve signal transmission between the signal pin 31 and the circuit board 2; the second insulating layer 32 is arranged around the signal pin 31, so as to protect and insulate the signal pin 31; the second shielding layer 33 is used to shield external signals to prevent external signals from interfering with the signal of the signal pin 31.

[0068] Furthermore, the coaxial attenuation component also includes an insulating shell 4, which can be made of an elastic material or a hard material, as long as it can play an insulating role; the insulating shell 4 is sleeved on the outside of the circuit board 2, thereby playing a protective and insulating role for the circuit board 2; the insulating shell 4 and the second insulating layer 32 are interconnected, so that the insulating shell 4 and the second insulating layer 32 form a continuous insulating structure together to avoid the generation of local insulation weak areas, which may cause damage such as local discharge or shielding layer breakdown.

[0069] Furthermore, the circuit board 2 is an attenuation unit, the end of the circuit board 2 away from the coaxial line 1 is a high-voltage end, and the end of the circuit board 2 close to the coaxial line 1 is a low-voltage end. At the high-voltage end of the circuit board 2, the insulating shell 4 is a continuous structure along the circumference of the circuit board 2, thereby playing a role of reliable protection and insulation at the high-voltage end of the circuit board 2. At the low-voltage end of the circuit board 2, the insulating shell 4 forms a non-insulating design at least in the connection area between the coaxial line 1 and the circuit board 2, so that the connection between the coaxial line 1 and the circuit board 2 is more convenient, that is, the insulating shell 4 may not be set at all at the low-voltage end of the circuit board 2, or the insulating shell 4 may be set at the low-voltage end of the circuit board 2, and a notch may be set at the position of the insulating shell 4 facing the connection area between the coaxial line 1 and the circuit board 2.

[0070] Furthermore, a portion of the insulating shell 4 is sleeved on the outside of the second insulating layer 32, and the inner side of the insulating shell 4 is tightly fitted with the outer side of the second insulating layer 32, so that the insulating shell 4 and the second insulating layer 32 are overlapped in the radial direction, increasing the thickness of the insulating layer, thereby improving the insulation effect, and avoiding the insulating shell 4 and the signal pin 31 from contacting each other, causing the signal pin 31 and the insulating shell 4 to wear or scratch each other; the insulating shell 4 and the second insulating layer 32 can form a tight fit by relying on their own elasticity, or they can form a tight fit by using an interference fit, without the need for external connectors, simplifying the connection structure; an insulating rubber layer can be provided between the insulating shell 4 and the second insulating layer 32, and the tight fit between the two is achieved through the insulating rubber layer, so as to increase the connection reliability between the insulating shell 4 and the second insulating layer 32. In other embodiments, a portion of the insulating shell 4 can also be sleeved inside the second insulating layer 32, or the end face of the insulating shell 4 can be butted against the end face of the second insulating layer 32.

[0071] Furthermore, the coaxial attenuation component also includes a shielding shell 5, which is made of metal material and is sleeved on the outside of the circuit board 2 to shield external signals and prevent external signals from interfering with the signals of the circuit board 2; a gap is provided between the shielding shell 5 and the circuit board 2, that is, the shielding shell 5 and the circuit board 2 cannot contact each other to avoid risks such as short circuits. It should be noted that when the coaxial attenuation component includes both the insulating shell 4 and the shielding shell 5, the shielding shell 5 should be sleeved on the outside of the insulating shell 4, and the insulating shell 4 separates the shielding shell 5 from the circuit board 2.

[0072] Furthermore, the shielding shell 5 is fixedly connected to the second shielding layer 33, that is, one end of the shielding shell 5 close to the coaxial connector 3 is fixedly connected to the second shielding layer 33, which can not only install and position the shielding shell 5 to prevent the shielding shell 5 and the circuit board 2 from contacting each other and causing a short circuit, but also enable the shielding shell 5 and the second shielding layer 33 to form a continuous shielding structure.

[0073] Furthermore, the shielding shell 5 and the second shielding layer 33 are connected to each other by threaded fitting, with high coaxiality and fitting accuracy, convenient installation and reliable connection. It can be understood that the shielding shell 5 and the second shielding layer 33 can also be connected to each other by other means such as interference fit, riveting or welding.

[0074] Furthermore, the shielding shell 5 is fixedly connected to the first shielding layer 13, that is, one end of the shielding shell 5 away from the coaxial connector 3 is fixedly connected to the first shielding layer 13, so that the coaxial structure, the shielding shell 5 and the coaxial line 1 form a rigidly connected whole, so that each connection part of the signal path is accommodated inside the rigid cavity, thereby improving the reliability of the connection and preventing the coaxial line 1 and the coaxial connector 3 from axial movement caused by external forces, thereby causing the connection of the signal path to loosen or disconnect.

[0075] Furthermore, the aperture of the shielding shell 5 should be larger than the outer diameter of the first shielding layer 13 so that the shielding shell 5 can slide along the coaxial line 1 to ensure that the connection part of the signal path is not subjected to force during the connection between the shielding shell 5 and the coaxial connector 3. That is to say, the shielding shell 5 should be first connected and fixed to the coaxial connector 3, and then connected and fixed to the coaxial line 1; the shielding shell 5 and the first shielding layer 13 can be fixedly connected by riveting or welding.

[0076] Furthermore, the shielding shell 5 includes a first shell segment 51 and a second shell segment 52 connected to each other. The first shell segment 51 is closer to the coaxial connector 3 than the second shell segment 52. The journal of the first shell segment 51 is larger than the journal of the second shell segment 52 to form a stepped shaft structure. The first shell segment 51 is sleeved on the circuit board 2 and is connected to the coaxial connector 3. The second shell segment 52 is sleeved on the coaxial line 1 and is connected to the coaxial line 1. The first shell segment 51 and the second shell segment 52 can be integrally formed; or the first shell segment 51 and the second shell segment 52 can be configured as two independent components. The first shell segment 51 and the second shell segment 52 can be connected to each other in a detachable manner such as threaded fitting, or can be connected to each other in a non-detachable manner such as welding or riveting.

[0077] Furthermore, the coaxial attenuation assembly also includes a jacket 6, which can be made of insulating materials such as heat shrink tubing or PVC sheath. The jacket 6 surrounds the coaxial line 1 and extends along the length direction of the coaxial line 1 to the coaxial connector 3, so that the various components of the coaxial attenuation assembly are covered inside the jacket 6. The jacket 6 plays an overall protective role and makes the coaxial attenuation assembly form a whole that is easy to use and operate.

[0078] The embodiment of the present application also provides a method for manufacturing a coaxial attenuation component, which is used to manufacture the coaxial attenuation component provided in the embodiment of the present application. It should be noted that the two ends of the coaxial line 1 can adopt the same or similar manufacturing method, and the two ends of the coaxial line 1 can be manufactured simultaneously or sequentially. In the embodiment of the present application, only the manufacturing method of one end of the coaxial line 1 is described in detail.

[0079] The manufacturing method of the coaxial attenuation component provided in the embodiment of the present application includes step S10, step S20, step S30 and step S40. Step S10: Provide a circuit board 2 and a coaxial line 1, the coaxial line 1 includes a fiber core 11, a first insulating layer 12 and a first shielding layer 13 from the inside to the outside; step S20: Peel off the end of the coaxial line 1 to expose the first shielding layer 13, the first insulating layer 12 and the fiber core 11, and the first insulating layer 12 or the first shielding layer forms a fixing portion 131; step S30: Fix the fixing portion 131 to the circuit board 2; step S40: Electrically connect the fiber core 11 to the circuit board 2.

[0080] The embodiment of the present application uses the insulating layer or shielding layer of the coaxial line 1 itself to form the fixing portion 131, and fixes the fixing portion 131 to the circuit board 2, thereby simplifying the connection structure between the coaxial line 1 and the circuit board 2 and reducing the production cost; and, first, the fixing portion 131 is fixedly connected to the circuit board 2 to form a support and fixing structure, and then the fiber core 11 is connected to the circuit board 2, so that the fiber core 11 is in a natural state as much as possible to prevent the fiber core 11 from being subjected to traction and other forces, thereby effectively reducing the possibility of the fiber core 11 breaking.

[0081] In one embodiment, step S20 further includes: peeling off the first shielding layer 13 at the end of the coaxial line 1 into at least two strands, each strand of the first shielding layer 13 forms a fixing portion 131, and the fixing portion 131 is bent in a direction away from the fiber core 11; after peeling off the first shielding layer 13, the exposed first insulating layer 12 is peeled off to expose the fiber core 11. Step S30 includes: welding and fixing the fixing portion 131 to the circuit board 2 or fixing it with a cable tie.

[0082] In other embodiments, step S20 includes: stripping the first shielding layer 13 at the end of the coaxial line 1, exposing the first insulating layer 12 after stripping the first shielding layer 13, and then stripping a portion of the exposed first insulating layer 12 to expose the fiber core 11, and the unstripped portion of the first shielding layer 13 or the unstripped portion of the first insulating layer 12 forms the fixing portion 121. Step S30 includes: fixing the fixing portion 121 to the circuit board 2 with a cable tie.

[0083] In one embodiment, step S10 further includes: providing a coaxial connector 3 and an insulating shell 4, electrically connecting the coaxial connector 3 to the circuit board 2, and sleeve the insulating shell 4 on the coaxial line 1. S10 specifically includes: providing a circuit board 2, a coaxial line 1, a coaxial connector 3 and an insulating shell 4, the coaxial line 1 including a fiber core 11, a first insulating layer 12 and a first shielding layer 13 from the inside to the outside, electrically connecting the coaxial connector 3 to the circuit board 2, and sleeve the insulating shell 4 on the coaxial line 1.

[0084] After step S40, step S50 is also included: sliding the insulating shell 4 toward the direction close to the coaxial connector 3, so that the insulating shell 4 is sleeved on the circuit board 2, and the insulating shell 4 is fixedly connected to the coaxial connector 3 (the second insulating layer 32 of the coaxial connector 3), so that the insulating shell 4 and the second insulating layer 32 form a continuous insulating structure together, so as to avoid the formation of weak insulation areas locally, which may cause damage such as local discharge or breakdown of the shielding layer.

[0085] In another embodiment, step S10 further includes: providing a coaxial connector 3 and a shielding shell 5, electrically connecting the coaxial connector 3 to the circuit board 2, and sleeve the shielding shell 5 on the coaxial line 1. Step S10 specifically includes: providing a circuit board 2, a coaxial line 1, a coaxial connector 3 and a shielding shell 5, the coaxial line 1 including a fiber core 11, a first insulating layer 12 and a first shielding layer 13 from the inside to the outside, electrically connecting the coaxial connector 3 to the circuit board 2, and sleeve the shielding shell 5 on the coaxial line 1.

[0086] After step S40, step S60 is also included: sliding the shielding shell 5 toward the direction close to the coaxial connector 3, so that the shielding shell 5 is sleeved on the circuit board 2, firstly fixing the shielding shell 5 with the coaxial connector 3 (the second shielding layer 33 of the coaxial connector 3), and then fixing the shielding shell 5 with the first shielding layer 13. Thus, the coaxial structure, the shielding shell 5 and the coaxial line 1 form a rigidly connected whole, so that each connection part of the signal path is accommodated in the rigid cavity, the reliability of the connection is improved, and the coaxial line 1 and the coaxial connector 3 are prevented from axially moving due to external force, thereby causing the connection of the signal path to become loose or disconnected; the shielding shell 5 is first fixedly connected to the coaxial connector 3, and then fixedly connected to the coaxial line 1, so as to ensure that the connection part of the signal path is not subjected to force during the connection between the shielding shell 5 and the coaxial connector 3.

[0087] In another embodiment, step S10 specifically includes: providing a circuit board 2, a coaxial line 1, a coaxial connector 3, an insulating shell 4 and a shielding shell 5, wherein the coaxial line 1 includes a fiber core 11, a first insulating layer 12 and a first shielding layer 13 from the inside to the outside, electrically connecting the coaxial connector 3 to the circuit board 2, sleeve the insulating shell 4 on the coaxial line 1, and sleeve the shielding shell 5 on the coaxial line 1. After step S40, the above steps S50 and S60 are also included in sequence.

[0088] Among them, when the shielding shell 5 includes a first shell segment 51 and a second shell segment 52 connected to each other, step S60 may include: fixedly connecting the first shell segment 51 to the coaxial connector 3, and fixing the second shell segment 52 to the first shielding layer 13, and then welding or riveting the first shell segment 51 and the second shell segment 52.

[0089] Furthermore, after step S60 , the method further includes sleeve-arranging a jacket 6 on the outer side of the coaxial line 1 and extending the jacket 6 along the length direction of the coaxial line 1 to the coaxial connector 3 .

[0090] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A coaxial attenuation component, characterized in that: include: A coaxial line, the coaxial line comprising a fiber core, a first insulating layer and a first shielding layer from inside to outside, and at an end of the coaxial line, the first shielding layer forms at least two fixing parts, each of which surrounds the fiber core; A circuit board is arranged at the end of the coaxial line, the fixing portion is fixedly connected to the circuit board, and the fiber core is electrically connected to the circuit board.

2. The coaxial attenuation component according to claim 1, characterized in that: The coaxial attenuation component further includes a coaxial connector, and the coaxial connector includes a signal pin, and the signal pin is electrically connected to the circuit board.

3. The coaxial attenuation assembly according to claim 2, characterized in that: The coaxial connector further comprises a second insulating layer, wherein the second insulating layer surrounds the signal pin; The coaxial attenuation component further includes an insulating shell, which is sleeved on the outside of the circuit board, and the insulating shell is connected to the second insulating layer.

4. The coaxial attenuation assembly according to claim 2, characterized in that: The coaxial connector further comprises a second shielding layer, the second shielding layer surrounds the signal pin, and the second shielding layer and the signal pin are insulated from each other; The coaxial attenuation component further includes a shielding shell, which is sleeved on the outside of the circuit board and is fixedly connected to the second shielding layer.

5. The coaxial attenuation assembly according to claim 4, characterized in that: The shielding shell is fixedly connected to the first shielding layer.

6. A method for manufacturing a coaxial attenuation component, characterized in that: include: Step S10: providing a circuit board and a coaxial line, wherein the coaxial line includes a fiber core, a first insulating layer and a first shielding layer from inside to outside; Step S20: peeling off the end of the coaxial line to expose the first shielding layer, the first insulating layer and the fiber core, wherein the first insulating layer or the first shielding layer forms a fixing portion; Step S30: fixing the fixing portion to the circuit board; Step S40: electrically connecting the fiber core to the circuit board.

7. The method for manufacturing a coaxial attenuation component according to claim 6, characterized in that: The step S20 further includes: dividing the first shielding layer into at least two strands, each strand of the first shielding layer forming one of the fixing portions.

8. The method for manufacturing a coaxial attenuation component according to claim 6, characterized in that: The step S10 further includes: providing a coaxial connector and an insulating shell, electrically connecting the coaxial connector to the circuit board, and sleeve the insulating shell on the coaxial line; After step S40, the method further includes step S50: sliding the insulating shell toward the direction close to the coaxial connector, and fixedly connecting the insulating shell to the coaxial connector.

9. The method for manufacturing a coaxial attenuation component according to claim 6, characterized in that: The step S10 further includes: providing a coaxial connector and a shielding shell, electrically connecting the coaxial connector to the circuit board, and sleeve the shielding shell on the coaxial line; After step S40, the method further includes step S60: sliding the shielding shell toward the direction close to the coaxial connector, first fixing the shielding shell to the coaxial connector, and then fixing the shielding shell to the first shielding layer.

10. The method for manufacturing a coaxial attenuation component according to claim 9, characterized in that: The shielding shell comprises a first shell segment and a second shell segment; The step S60 includes: fixedly connecting the first shell segment to the coaxial connector, connecting the second shell segment to the first shielding layer, and then connecting the first shell segment to the second shell segment.

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