Crown spring clamping test connector

Abstract

The utility model discloses a crown spring clamping test connector, which comprises a shell, an inner conductor, an insulator, a crown spring and a cable, one end of the inner conductor is clamped in the shell through a step structure, the insulator is arranged on the side surface of the inner conductor and is positioned in the shell, the insulator is arranged close to one end of the shell with a large opening diameter, and the crown spring is clamped in the shell. The inner conductor is arranged in the shell, the insulator is arranged in the inner conductor, the crown spring is arranged in the shell and located at one end, with a small opening diameter, of the shell, and the crown spring and the insulator are located on the two sides of the inner conductor respectively, the connector shell is integrally designed, the cavity matched with the crown spring is designed at the tail, the step is synchronously designed for index compensation, and positioning of the insulator and the crown spring is achieved; the integral structure is simple, the designed structure is tightly matched, parts can be detached and replaced conveniently, the crown spring structure at the tail can be opened when making contact with an outer conductor of a cable and can be tightened in the middle section of the crown spring to form clamping force, and the service life of the crown spring can be prolonged through the integral structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of communication signal test system, and particularly relates to a crown spring clamped test connector, which can be mainly used to quickly test and judge the voltage standing wave ratio, attenuation, impedance and other electrical performance indicators of radio frequency coaxial cables. Background Art

[0002] The RF coaxial cable test connector is a high performance RF connector.

[0003] At present, the same type of test connectors on the market adopt a segmented structure, and the cable clamping part is designed separately. Considering the fixing and limiting of the cable clamp, the overall structure of the connector is too complicated. At the same time, the cable clamp cannot be replaced. The replacement cost is high after the elasticity fails in the later stage, and it cannot be reused. With the continuous development of the communication industry, people's requirements for related test-level connectors will become higher and higher.

[0004] In view of the above problems, it is necessary to propose a high-performance test connector with a reasonable design that can effectively improve the above problems. To this end, a crown spring clamped test connector is proposed. Summary of the invention

[0005] The utility model aims to overcome the problems in the prior art that the cable clamp cannot be replaced, has high replacement cost after elastic failure, and cannot be reused, and provides a crown spring clamped test connector which can be opened and tightened to form a clamping force when in contact with the outer conductor of the cable, and has a long service life.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a crown spring clamped test connector, comprising a shell, an inner conductor, an insulator, a crown spring and a cable, the shell being a tubular structure, the opening diameter of one end of the shell being larger than the opening of the other end, an inwardly contracted step structure being provided inside the shell, one end of the inner conductor being clamped in the shell through the step structure, the insulator being provided on the side surface of the inner conductor so as to be located in the shell, the insulator being provided close to the end of the shell with a larger opening diameter, the crown spring being provided in the shell and being located at the end of the shell with a smaller opening diameter, and the crown spring and the insulator being respectively located on both sides of the inner conductor.

[0007] Preferably, the shell adopts an integrated design, and the inner diameter of one end of the shell connected to the crown spring is set corresponding to the diameter of the crown spring, so as to position the crown spring and protect the crown spring to extend its service life.

[0008] Preferably, a limiting chamfer is provided on the side surface of the insulator, and the limiting chamfer is arranged corresponding to the step structure.

[0009] Preferably, the connector housing performs impedance compensation and achieves synchronous positioning of the insulator and the crown spring through a stepped structure.

[0010] Preferably, the housing, insulator and inner conductor are assembled and positioned.

[0011] Preferably, a cable is inserted into one end of the crown spring away from the insulator, and the crown spring clamps the cable.

[0012] Preferably, the cable includes a cable inner conductor, a cable insulation layer, a cable outer conductor and a cable sheath, the cable outer conductor is inserted into a crown spring, the crown spring clamps the cable outer conductor, the cable insulation layer is located inside the cable outer conductor, the cable inner conductor is located inside the cable insulation layer, the cable inner conductor and the cable insulation layer are both located inside the crown spring, and the cable sheath is sleeved on the outside of the cable outer conductor and outside the crown spring.

[0013] The beneficial effects of the utility model are:

[0014] The utility model designs the connector shell in an integrated manner, designs a cavity for fitting the crown spring at the tail, and simultaneously designs steps to perform index compensation and realize the positioning of the insulator and the crown spring. The overall structure is simple, the designed structure is tightly matched, and the parts can be disassembled and replaced conveniently. The crown spring structure at the tail can be opened when in contact with the outer conductor of the cable and tightened in the middle section of the crown spring to form a clamping force. The integrated structure is conducive to extending the service life of the crown spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a crown spring clamped test connector according to an embodiment of the utility model.

[0016] Figure 2 It is a structural schematic diagram of a test connector connected to a crown spring clamp according to an embodiment of the present invention.

[0017] Figure 3 The present invention is a schematic structural diagram of a cable in a test connector clamped by a crown spring according to an embodiment of the present invention.

[0018] In the figure: 1. outer casing; 2. inner conductor; 3. insulator; 4. crown spring; 5. cable; 6. inner conductor of cable; 7. cable insulation layer; 8. outer conductor of cable; 9. cable sheath. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-3 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, specific orientation structure and operation, and therefore should not be understood as a limitation on the present invention.

[0021] The present embodiment provides a crown spring clamped test connector, comprising a shell 1, an inner conductor 2, an insulator 3, a crown spring 4 and a cable 5. The shell 1 is a tubular structure. The opening diameter of one end of the shell 1 is larger than the opening of the other end. An inwardly contracted step structure is provided inside the shell 1. One end of the inner conductor 2 is clamped in the shell 1 through the step structure. The insulator 3 is provided on the side of the inner conductor 2 so as to be located in the shell 1. The insulator 3 is provided close to the end of the shell 1 with a larger opening diameter. The crown spring 4 is provided in the shell 1 and is located at the end of the shell 1 with a smaller opening diameter. The crown spring 4 and the insulator 3 are respectively located on both sides of the inner conductor 2.

[0022] In one embodiment, specifically, the housing 1 adopts an integrated design, and the inner diameter of one end where the housing 1 and the crown spring 4 are connected is set corresponding to the diameter of the crown spring 4, so as to position the crown spring 4 and protect the crown spring 4 to extend its service life.

[0023] In one embodiment, specifically, a limiting chamfer is provided on the side surface of the insulator 3, and the limiting chamfer is arranged corresponding to the step structure.

[0024] In one embodiment, specifically, the connector housing 1 performs impedance compensation and realizes synchronous positioning of the insulator 3 and the crown spring 4 through a stepped structure.

[0025] In one embodiment, specifically, the housing 1 , the insulator 3 and the inner conductor 2 are assembled and positioned.

[0026] In one embodiment, specifically, a cable 5 is inserted into one end of the crown spring 4 away from the insulator 3 , and the crown spring 4 clamps the cable 5 .

[0027] In one embodiment, specifically, the cable 5 includes a cable inner conductor 6, a cable insulation layer 7, a cable outer conductor 8 and a cable sheath 9. The cable outer conductor 8 is inserted into the crown spring 4, the crown spring 4 clamps the cable outer conductor 8, the cable insulation layer 7 is located in the cable outer conductor 8, the cable inner conductor 6 is located in the power insulation layer, the cable inner conductor 6 and the cable insulation layer 7 are both located in the crown spring 4, and the cable sheath 9 is sleeved on the outside of the cable outer conductor 8 and is located outside the crown spring 4.

[0028] The utility model designs the connector shell 1 as an integral whole, designs a cavity for fitting the crown spring 4 at the tail, and simultaneously designs a step to perform index compensation and realize the positioning of the insulator 3 and the crown spring 4. The overall structure is simple, the designed structure is tightly matched, and the parts can be disassembled and replaced conveniently. The crown spring structure at the tail can be opened when in contact with the outer conductor of the cable and tightened in the middle section of the crown spring to form a clamping force. The integrated structure is conducive to extending the service life of the crown spring.

[0029] Test and installation: After the cable 5 is stripped, it is inserted into the connector. The cable inner conductor 6 and the connector inner conductor 2 form a clamping force, the crown spring 4 and the cable outer conductor 8 form a clamping force, and the cable insulation layer 7 and the end of the connector insulator 3 are limited to achieve an overall stable structure.

[0030] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A crown spring clamped test connector, characterized in that: The invention comprises an outer shell (1), an inner conductor (2), an insulator (3), a crown spring (4) and a cable (5); the outer shell (1) is a tubular structure; the diameter of an opening at one end of the outer shell (1) is larger than that at the other end; an inwardly contracted stepped structure is provided inside the outer shell (1); one end of the inner conductor (2) is clamped in the outer shell (1) through the stepped structure; the insulator (3) is arranged on the side of the inner conductor (2) and is located in the outer shell (1); the insulator (3) is arranged close to the end of the outer shell (1) with a larger opening diameter; the crown spring (4) is arranged in the outer shell (1) and is located at the end of the outer shell (1) with a smaller opening diameter; the crown spring (4) and the insulator (3) are respectively located on both sides of the inner conductor (2).

2. A crown spring clamped test connector according to claim 1, characterized in that: The housing (1) adopts an integrated design, and the inner diameter of one end of the housing (1) connected to the crown spring (4) is set corresponding to the diameter of the crown spring (4), so as to position the crown spring (4) and protect the crown spring (4) to extend its service life.

3. A crown spring clamped test connector according to claim 2, characterized in that: The side surface of the insulator (3) is provided with a limiting chamfer, and the limiting chamfer is arranged corresponding to the step structure.

4. The crown spring clamped test connector according to claim 3, characterized in that: The connector housing (1) performs impedance compensation and realizes synchronous positioning of the insulator (3) and the crown spring (4) through a stepped structure.

5. A crown spring clamped test connector according to claim 4, characterized in that: The housing (1), the insulator (3) and the inner conductor (2) are assembled and positioned.

6. A crown spring clamped test connector according to claim 5, characterized in that: A cable (5) is inserted into one end of the crown spring (4) away from the insulator (3), and the crown spring (4) forms a clamping effect on the cable (5).

7. A crown spring clamped test connector according to claim 6, characterized in that: The cable (5) comprises a cable inner conductor (6), a cable insulation layer (7), a cable outer conductor (8) and a cable sheath (9); the cable outer conductor (8) is inserted into a crown spring (4); the crown spring (4) clamps the cable outer conductor (8); the cable insulation layer (7) is located inside the cable outer conductor (8); the cable inner conductor (6) is located inside the cable insulation layer (7); the cable inner conductor (6) and the cable insulation layer (7) are both located inside the crown spring (4); and the cable sheath (9) is sleeved on the outside of the cable outer conductor (8) and is located outside the crown spring (4).

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