Male end structure of attenuator

Abstract

The utility model discloses an attenuator male end structure which comprises a first shell and a second shell, one end of the second shell sleeves the outer side of one end of the first shell, the first shell is movably connected with the second shell, an insulator is arranged at one end, close to the second shell, of the inner side of the first shell, and the insulator is movably connected with the first shell. A through hole is formed in the middle of the insulator, a PIN needle is inserted into the through hole, steps are arranged on the inner wall of the through hole and the outer side face of the PIN needle, the steps are used for preventing the PIN needle from penetrating through the through hole, a barb structure is arranged on the outer side face of the PIN needle, and the maximum diameter of the barb structure is larger than the diameter of the through hole; the barb structure can penetrate into the inner wall of the through hole, so that the PIN can be prevented from automatically exiting from the through hole during use, the connection between the PIN and the insulator is more stable, and the service life of the male end structure of the attenuator can be prolonged.

Description

Technical Field

[0001] This application relates to the technical field of attenuators, and particularly to a male terminal structure of an attenuator. Background Art

[0002] An attenuator is an electronic component that provides attenuation and is widely used in electronic devices. Its main functions include: adjusting the signal size, directly reading the attenuation value, and improving impedance matching. The male terminal of an attenuator refers to a type or interface form of the attenuator, specifically indicating the connection method or structural characteristics of the attenuator.

[0003] In the existing male terminals of attenuators, the assembly of the insulator and the PIN pin mostly adopts the interference fit or the method of adding glue in the clearance. Both of these fastening methods have the risk of loosening and displacement. Among them, the interference fit is likely to cause deformation of the product device to be protected, and adding glue in the clearance is likely to cause glue overflow, which may cause problems such as unstable product performance, abnormal signal transmission, and impedance mismatch. Summary of the Utility Model

[0004] The main purpose of this application is to propose a male terminal structure of an attenuator, aiming to solve the problem that the PIN pin and the insulator medium in the existing male terminal of the attenuator are prone to looseness.

[0005] To achieve the above object, the male terminal structure of the attenuator proposed in this application includes: a first housing and a second housing. One end of the second housing is sleeved outside one end of the first housing, and the first housing is movably connected to the second housing. An insulator is provided inside the first housing near one end of the second housing, and a through hole is provided in the middle of the insulator. A PIN pin is inserted into the through hole, and a barbed structure is provided on the outer side surface of the PIN pin. The maximum diameter of the barbed structure is greater than the diameter of the through hole.

[0006] Optionally, an attenuation sheet is provided inside the first housing far from one end of the second housing. A circuit is provided on the attenuation sheet, and a fixing ring is provided outside the attenuation sheet. The fixing ring is fixedly connected to the inner wall of the first housing. A receiving groove is provided in the middle of the fixing ring corresponding to the attenuation sheet for receiving the attenuation sheet. A gasket is provided between the attenuation sheet and the fixing ring, and the attenuation sheet is installed in the fixing ring through the gasket.

[0007] Optionally, a receiving hole is provided on the end surface of the PIN pin far from the second housing, and an attenuation cap is provided in the receiving hole. The attenuation cap is movably connected to the receiving hole, and a spring is provided between the attenuation cap and the bottom surface of the receiving hole. The spring makes the attenuation cap closely adhere to the attenuation sheet.

[0008] Optionally, a plurality of notches are circumferentially and evenly provided on the barbed structure.

[0009] Optionally, a circular first connection groove is formed on the outer side of one end of the first housing close to the second housing, a circular second connection groove is formed on the inner side of one end of the second housing close to the first housing, a retaining ring is arranged between the first connection groove and the second connection groove, and the retaining ring is used to prevent the first housing and the second housing from axially moving.

[0010] Optionally, threads are provided on the inner sides of the outer ends of the first housing and the second housing, and external hexagons are provided on the outer sides of the first housing and the second housing.

[0011] Optionally, a sealing ring is arranged inside the second housing, and the sealing ring is a ring-shaped structure made of silica gel material.

[0012] Optionally, both the first housing and the second housing are cylindrical structures made of stainless steel material.

[0013] Optionally, the insulator is a cylindrical structure made of Teflon material, and the PIN pin is a cylindrical needle-shaped structure made of C3604 copper metal.

[0014] Optionally, steps are provided on the inner wall of the through hole and on the outer side surface of the PIN pin, and the steps are used to prevent the PIN pin from passing through the through hole.

[0015] By providing a barb structure on the outer side of the PIN pin in the technical solution of the application, and the diameter of the barb structure is larger than the diameter of the through hole on the insulator, when the PIN pin is inserted into the through hole, the barb structure can penetrate into the inner wall of the through hole, so that the PIN can be prevented from automatically withdrawing from the through hole during use, making the connection between the PIN pin and the insulator more stable, and thus improving the service life of the male end structure of the attenuator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0017] Figure 1 It is a schematic external structure diagram of the male end structure of the attenuator of the present application;

[0018] Figure 2 It is a schematic disassembled structure diagram of the male end structure of the attenuator of the present application;

[0019] Figure 3 It is a schematic cross-sectional structure diagram of the male end structure of the attenuator of the present application;

[0020] Figure 4 This is a schematic structural diagram of the first embodiment of the PIN pin in the common terminal structure of the attenuator of the present application;

[0021] Figure 5 This is a schematic structural diagram of the second embodiment of the PIN pin in the common terminal structure of the attenuator of the present application.

[0022] Explanation of the reference numerals in the drawings:

[0023] 1. First housing; 101. First connection groove; 2. Second housing; 201. Second connection groove; 3. Retaining ring; 4. Sealing ring; 5. Insulator; 501. Through hole; 6. PIN pin; 601. Accommodating hole; 602. Barbed structure; 603. Notch; 7. Attenuation cap; 8. Spring; 9. Attenuation sheet; 10. Spacer; 11. Fixed ring.

[0024] The realization of the purpose, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly disposed on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0027] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0028] In addition, if the descriptions such as "first" and "second" are involved in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or the solution where both A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0029] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the qualified conditions for the implementation of the present application. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present application can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present application.

[0030] In the existing public end of the attenuator, the assembly of the insulator and the PIN pin mostly adopts the interference fit or the method of adding glue in the clearance for fastening. Both of these fastening methods have the risk of loosening due to displacement. Among them, the interference fit is likely to cause deformation of the product device to be protected, and adding glue in the clearance is likely to cause glue overflow, which may lead to problems such as unstable product performance, abnormal signal transmission, and impedance mismatch.

[0031] In view of this, the present application proposes a public end structure of an attenuator, including: a first housing 1 and a second housing 2. One end of the second housing 2 is sleeved outside one end of the first housing 1. The first housing 1 is movably connected to the second housing 2. An insulator 5 is arranged inside the first housing 1 near one end of the second housing 2. A through hole 501 is arranged in the middle of the insulator 5. A PIN pin 6 is inserted into the through hole 501. A barbed structure 602 is arranged on the outer side surface of the PIN pin 6. The maximum diameter of the barbed structure 602 is greater than the diameter of the through hole 501.

[0032] In the first embodiment of the public end structure of the attenuator of the present application, refer to Figures 1 to 4, including: a first housing 1 and a second housing 2. Both the first housing 1 and the second housing 2 are cylindrical structures made of stainless steel material. Specifically, the first housing 1 and the second housing 2 are made of SUS303 material, having good wear resistance. One end of the second housing 2 is sleeved on the outside of one end of the first housing 1, and the first housing 1 and the second housing 2 are movably connected so that the first housing 1 and the second housing 2 can rotate relative to each other. Specifically: An annular first connection groove 101 is provided on the outside of one end of the first housing 1 close to the second housing 2, and an annular second connection groove 201 is provided on the inside of one end of the second housing 2 close to the first housing 1. A retaining ring 3 is arranged between the first connection groove 101 and the second connection groove 201. The retaining ring 3 is an annular structure with an opening made of metal material, and the cross-section of the retaining ring 3 is rectangular. When the second housing 2 is sleeved on the outside of one end of the first housing 1, the first connection groove 101 and the second connection groove 201 form an annular space, and the retaining ring 3 is movably arranged in this space. As Figure 3 shown, the retaining ring 3 is used to prevent the axial movement of the first housing 1 and the second housing 2, and the retaining ring 3 movably connects the first housing 1 and the second housing 2 together through the first connection groove 101 and the second connection groove 201.

[0033] Reference Figure 1 and Figure 3 , internal threads are provided on the inner sides of the mutually remote ends of the first housing 1 and the second housing 2, which is convenient for connection with other electrical components. External hexagons are provided on the outer sides of the first housing 1 and the second housing 2, which is convenient for turning the first housing 1 and the second housing 2 with a wrench. An annular sealing ring 4 is arranged inside the second housing 2. The sealing ring 4 is made of silica gel material, having good sealing performance and not being easily deformed in a high-temperature environment. The sealing ring 4 is sleeved on the outside of the first housing 1, so that the device can play a sealing role when connected with other electrical components through the second housing 2.

[0034] Reference Figure 2 and Figure 3 , an insulator 5 is arranged on the inner side of the first housing 1 close to the second housing 2. The insulator 5 is a cylindrical structure made of Teflon material, having high insulation performance and relatively high structural stability. The insulator 5 is fixedly connected to the inner wall of the first housing 1. A through hole 501 is provided at the axis of the insulator 5. Steps are provided on the inner wall of the through hole 501. A PIN pin 6 is arranged in the through hole 501. The PIN pin 6 is a cylindrical needle-like structure made of C3604 copper metal, having good electrical conductivity. A needle tip is provided at one end of the PIN pin 6 close to the second housing 2. Steps are provided on the outside of the PIN pin 6 corresponding to the steps of the through hole 501, so that the PIN pin 6 can only be inserted into the through hole 501 from one end of the through hole 501 close to the first housing 1, and the PIN pin 6 is prevented from passing through the through hole 501.

[0035] Reference Figure 4, an annular barbed structure 602 is provided on the outer side of the PIN pin 6. The cross-section of the barbed structure 602 is triangular. The barbed structure 602 faces the direction of the first housing 1. The maximum diameter of the barbed structure 602 is greater than the diameter of the through hole 501, which is used for the connection between the PIN pin 6 and the insulator 5. When the PIN pin 6 is inserted into the through hole 501, the barbed structure 602 will penetrate into the inner wall of the through hole 501, so that the PIN pin 6 and the insulator 5 are fixedly connected. The barbed structure 602 can prevent the PIN pin 6 from withdrawing from the through hole 501, making the connection between the PIN pin 6 and the insulator 5 more stable.

[0036] Reference Figure 2 and Figure 3 , an attenuation sheet 9 is provided inside the first housing 1 at the end far from the second housing 2. A circuit is provided on the attenuation sheet 9, which can play a role in attenuating the electrical signal. A fixing ring 11 is provided outside the attenuation sheet 9. The fixing ring 11 is fixedly connected to the inner wall of the first housing 1. A receiving groove is opened in the middle of the fixing ring 11 corresponding to the attenuation sheet 9 for receiving the attenuation sheet 9. A gasket 10 is provided between the attenuation sheet 9 and the fixing ring 11. The attenuation sheet 9 is installed in the fixing ring 11 through the gasket 10, and the gasket 10 enables the attenuation sheet 9 to conduct better with the fixing ring 11.

[0037] Reference Figure 3 , a receiving hole 601 is opened on the end face of the end of the PIN pin 6 far from the needle tip. An attenuation cap 7 is provided in the receiving hole 601. The attenuation cap 7 is movably connected to the receiving hole 601. The attenuation cap 7 can slide in the receiving hole 601. A spring 8 is provided between the attenuation cap 7 and the bottom surface of the receiving hole 601. The spring 8 abuts against the attenuation cap 7 outward and makes the attenuation cap 7 closely adhere to the attenuation sheet 9, which can reduce the possibility of vibration or self-displacement of the PIN pin 6.

[0038] The second embodiment of the public-end structure of the attenuator of the present application:

[0039] Reference Figure 5 , different from the first embodiment, a plurality of notches 603 are circumferentially and uniformly opened on the barbed structure 602. When the PIN pin 6 is inserted into the insulator 5, the notches 603 can play a role in chip removal, making the barbed structure 602 easier to penetrate into the insulator 5. In addition, the setting of the plurality of notches 603 makes the barbed structure 602 form a circumferentially distributed tooth-like structure, which can prevent the PIN pin 6 from rotating by itself in the insulator 5, thereby further improving the connection stability between the PIN pin 6 and the insulator 5.

[0040] The technical solution of the application is to provide a barbed structure on the outer side of the PIN pin, and the diameter of the barbed structure is larger than the diameter of the through hole in the insulator. When the PIN pin is inserted into the through hole, the barbed structure can penetrate into the inner wall of the through hole, so as to prevent the PIN from withdrawing from the through hole by itself during use, making the connection between the PIN pin and the insulator more stable, thereby improving the service life of the male end structure of the attenuator.

[0041] The above are only the optional embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural transformation made by using the content of the specification and drawings of the present application under the inventive concept of the present application, or direct / indirect application in other related technical fields, are all included in the patent protection scope of the present application.

Claims

1. An attenuator common terminal structure, characterized in that, Comprising: A first housing and a second housing, one end of the second housing is sleeved outside one end of the first housing, the first housing is movably connected to the second housing, an insulator is arranged inside the first housing near one end of the second housing, a through hole is arranged in the middle of the insulator, a PIN needle is inserted into the through hole, a barbed structure is arranged on the outer side surface of the PIN needle, and the maximum diameter of the barbed structure is greater than the diameter of the through hole.

2. The common terminal structure of the attenuator according to claim 1, characterized in that An attenuation sheet is arranged inside the first housing away from one end of the second housing, a circuit is arranged on the attenuation sheet, a fixing ring is arranged outside the attenuation sheet, the fixing ring is fixedly connected to the inner wall of the first housing, a receiving groove is formed in the middle of the fixing ring corresponding to the attenuation sheet, the receiving groove is used for receiving the attenuation sheet, a gasket is arranged between the attenuation sheet and the fixing ring, and the attenuation sheet is installed in the fixing ring through the gasket.

3. The common terminal structure of the attenuator according to claim 2, characterized in that, A receiving hole is formed in the end surface of the end of the PIN needle away from the second housing, an attenuation cap is arranged in the receiving hole, the attenuation cap is movably connected to the receiving hole, a spring is arranged between the attenuation cap and the bottom surface of the receiving hole, and the spring makes the attenuation cap closely attached to the attenuation sheet.

4. The common terminal structure of the attenuator according to claim 1, characterized in that, A plurality of notches are circumferentially and uniformly formed on the barbed structure.

5. The common terminal structure of the attenuator according to claim 1, characterized in that, A circular first connection groove is formed outside one end of the first housing close to the second housing, a circular second connection groove is formed inside one end of the second housing close to the first housing, a retaining ring is arranged between the first connection groove and the second connection groove, and the retaining ring is used to prevent the first housing and the second housing from axially moving.

6. The common terminal structure of the attenuator according to claim 5, characterized in that, Threads are arranged inside the outer ends of both the first housing and the second housing, and external hexagons are arranged on the outer sides of both the first housing and the second housing.

7. The common terminal structure of the attenuator according to claim 5, characterized in that A sealing ring is arranged inside the second housing, and the sealing ring is a circular structure made of silica gel material.

8. The common terminal structure of the attenuator according to claim 1, characterized in that Both the first housing and the second housing are cylindrical structures made of stainless steel material.

9. The common terminal structure of the attenuator according to claim 1, characterized in that, The insulator is a cylindrical structure made of Teflon material, and the PIN needle is a cylindrical needle-like structure made of C3604 copper metal.

10. The common terminal structure of the attenuator according to claim 1, characterized in that, Steps are arranged on the inner wall of the through hole and the outer side surface of the PIN needle, and the steps are used to prevent the PIN needle from passing through the through hole.

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