CN201498785U - Anti-rotation joints for shielding structures - Google Patents

Abstract

An anti-rotation joint for a shielding structure includes a sleeve having a first-level receiving hole inside; an insulating component assembly disposed in the first-level receiving hole and having a first insulating component and a second insulating component; a contact component having a contact portion disposed in the first and second insulating components; and a first anti-rotation structure including a plurality of first teeth and a plurality of first tooth-shaped grooves disposed between the sleeve and the first insulating component to form a stable connection therebetween. The anti-rotation joint further includes a second anti-rotation structure located between the first insulating component and the contact component to form a stable connection therebetween.

Description

Anti-rotation joints for shielding structures

Technical field:

The utility model relates to a joint, in particular to an anti-rotation joint for a shielding structure.

Background technique:

As shown in Figure 1 and Figure 2, the traditional shielding structure (Shielding device) 10 is fixed on the PC board by soldering, the shielding structure 10 includes a frame 11 and a connector 12, the connector 12 is connected with the frame 11 for signal output/input. Generally speaking, the joint 12 needs to be fixed on the PC board by means of soldering such as an infrared reflow furnace (IR Reflow). The reflow furnace is equipped with a heating device, and the solder paste is preheated/ Melting/coagulation/cooling and solidification, wherein the process temperature in the melting temperature zone is about 230°C to 265°C.

The connector 12 includes a metal sleeve 13 , and the sleeve 13 has a receiving hole 14 for receiving the first insulating component 15 and the second insulating component 16 . The front end of the casing 13 is provided with a connecting portion 17, which can be inserted into the engaging hole 18 of the frame 11, and riveted and welded around the joint between the connecting portion 17 and the engaging hole 18, so that the joint 12 is combined with the frame 11 become one. The connector 12 includes a contact component 19 disposed in the first insulating component 15 and the second insulating component 16 . The contact component 19 has an end portion connected to a conductive circuit of the PC board, so that the contact component 19 is electrically connected to the PC board.

When the joint 12 and the frame 11 are performing manual welding, the tools used for manual welding will set the temperature according to the heat resistance conditions of the parts, and work at a high temperature of about 280 ° C. However, the first insulating component 15 is made of Nylon (Nylon) It is made of high temperature material, and the heat resistance temperature is below 200°C. After high temperature welding, shrinkage and deformation between the first insulating component 15 and the sleeve 13 will cause free rotation.

In addition, the connector 12 is adhered to the PC board by an infrared reflow process. After high-temperature soldering, deformation occurs between the contact component 19 and the first insulating component 15 and between the connecting portion 17 and the insulating component 15 and free rotation.

It can be seen that the joint 12 operates in a high-temperature environment, causing free rotation between the bushing 13 and the first insulator 15 and between the first insulator 15 and the contact assembly 19, because there is no anti-rotation structure therebetween. Missing needs to be remedied.

Utility model content:

The technical problem to be solved by the utility model is to provide an anti-rotation joint for a shielding structure with an anti-rotation structure in view of the above-mentioned deficiencies in the prior art.

In order to solve the above technical problems, the technical solution adopted by the utility model is: an anti-rotation joint for a shielding structure, the shielding structure is fixed on the PC board, so that the anti-rotation joint is electrically connected with the PC board, and the anti-rotation joint It includes a bushing, an insulating component combination, and a contact component. The bushing has a first end and a second end, and there is a level of accommodation hole inside; the insulating component combination has a first insulating component, and a second an insulating component, the first insulating component is arranged in the receiving hole of the bushing and is close to the first end of the bushing, the second insulating component is arranged in the receiving hole of the bushing and is close to the second end of the bushing ; The contact assembly has a contact portion and a terminal portion, the contact portion is disposed in the first and second insulating components, and the terminal portion is electrically connected to the PC board; the feature is: the anti-rotation joint also includes a second An anti-rotation structure, the first anti-rotation structure includes a plurality of first teeth and a plurality of first tooth-shaped grooves arranged between the bushing and the first insulating component, so that the bushing and the first insulating component become a stable combined.

The first tooth portion is formed on the outer surface of the first insulating component, and the first tooth-shaped groove is formed on the inner surface of the housing hole of the bushing, corresponding to several first tooth portions. The stepped receiving hole of the casing is composed of a long alcove and a short alcove, the interior of the long alcove and the short alcove form an annular flat bottom, and the first tooth-shaped groove is formed on the flat bottom On the surface of the first insulating component, the first teeth are formed on the end face of the first insulating component and correspond to the first tooth-shaped grooves.

There is a second anti-rotation structure between the first insulating component and the contact component, so that the first insulating component and the contact component become a stable connection. The second anti-rotation structure includes several second tooth portions and several second tooth-shaped grooves, the second tooth portions are formed on the outer surface of the contact portion of the contact assembly, and the second tooth-shaped grooves are formed on the The inner surface of the first insulating component corresponds to the second tooth portion of the contact portion.

In this way, through the design of the first anti-rotation structure in the anti-rotation joint, the bushing and the first insulating component become a stable combination; and through the design of the second anti-rotation structure, the first insulating component and the contact component form a solid link.

The structure, operation mode, purpose and advantages of the present utility model can be more easily understood by referring to the following description and accompanying drawings.

Description of drawings:

Figure 1 is a perspective view of a known shielding structure with joints.

Figure 2 is a cross-sectional view of a known joint.

Fig. 3 is a cross-sectional view of the first embodiment of the anti-rotation joint of the present invention.

Fig. 3a is a schematic cross-sectional view along line A-A in Fig. 3 .

Fig. 4 is a cross-sectional view of the casing of the present invention.

Fig. 5 is a left side view of the sleeve shown in Fig. 4 .

FIG. 6 is a schematic diagram of the first insulating component of the present invention.

FIG. 7 is a left side view of the first insulation assembly shown in FIG. 6 .

FIG. 8 is a cross-sectional view of the first insulation assembly shown in FIG. 6 .

Fig. 9 is a schematic diagram of the contact assembly of the present invention.

Fig. 10 is a three-dimensional cross-sectional view of the second embodiment of the anti-rotation joint of the present invention.

Fig. 11 is a three-dimensional cross-sectional view of the sleeve in Fig. 10 .

FIG. 12 is a three-dimensional cross-sectional view of the first insulating component in FIG. 10 .

FIG. 13 is a perspective view of the contact assembly in FIG. 10 .

Label description:

Shelter Structure 10 Frame 11

Connector 12 Sleeve 13

Storage hole 14 The first insulating component 15

The second insulating component 16 connection part 17

Engagement hole 18 Contact assembly 19

Anti-rotation joint 20 sleeve 21

First end 22 Second end 23

Receiving hole 24 Sleeve body 25

Tubular end 26 Stop 27

Connecting part 28 First toothed groove 29

Combination of insulating components 30 The first insulating component 31

The second insulating component 32 outer flange 321

Ring 322 front end extension 33

Interface part 34 Outer flange 35

Rear extension part 36 first perforation 37

The second toothed groove 371 The second perforation 38

The first tooth part 39 contact assembly 40

contact part 41 end part 42

Connecting part 43 Second tooth part 44

Anti-rotation joint 50 Metal sleeve 51

First end 52 Second end 53

Class Containment Hole 54 Long Alcove 541

Short alcove 542 Sleeve body 55

Tubular end 56 Connection 57

The first toothed groove 58 Insulation assembly combination 60

First insulating component 61 Second insulating component 62

First end 63 First tooth part 631

Second end 64 Slot 65

Perforation 66 Bevel 67

First tubular end 68 Second tubular end 69

Contact part 71 End part 72

Connecting part 73 clamping shrapnel 74

Detailed ways:

Please refer to FIG. 3 and FIG. 3 a , which is the first embodiment of the anti-rotation joint 20 for the shielding structure of the present invention. The anti-rotation joint 20 includes a metal sleeve 21 , an insulating component assembly 30 and a contact component 40 .

As shown in FIG. 4 and FIG. 5 , the sleeve 21 can be used to receive the insulating component assembly 30 , the sleeve 21 has a first end 22 and a second end 23 , and has a first-level receiving hole 24 inside. The sleeve 21 has a sleeve body 25, a tubular end 26 and a connecting portion 28, the outer diameter and wall thickness of the tubular end 26 are smaller than the sleeve body 25, and the connecting portion 28 is located at the sleeve 21 first end 22 . An inner surface of the step receiving hole 24 is provided with a blocking portion 27 close to the second end 23 of the sleeve 21 . Near the first end 22 of the sleeve 21, several first toothed grooves 29 are formed on the inner surface of the receiving hole 24 at equal or unequal intervals. The geometric direction of the first toothed grooves 29 is consistent with that of the sleeve 21. The axes are in the same direction. The outer wall of the tubular end 26 is threaded for mechanical and electrical connection with a connector having a threaded interface.

The insulating component combination 30 is coaxially arranged in the receiving hole 24 of the sleeve 21, and has a first insulating component 31 and a second insulating component 32, the first insulating component 31 is located at the first end 22 of the sleeve 21, the The second insulating component 32 is located at the second end 23 of the bushing 21 . As shown in FIG. 6 to FIG. 8 , the first insulating component 31 has a first through hole 37 and a second through hole 38 , and the size of the second through hole 38 is larger than that of the first through hole 37 . The first insulating component 31 includes a front extension portion 33 , an interface portion 34 , an outer flange 35 and a rear extension portion 36 , wherein the size of the outer flange 35 can be combined with the receiving hole 24 of the sleeve 21 . The outer surface of the interface part 34 has several first toothed parts 39 corresponding to the first toothed groove 29 of the bushing 21; The toothed grooves 29 mesh with each other, so that the first insulating component 31 and the bushing 21 are firmly combined by the first anti-rotation structure (that is, the first tooth portion 39 and the first toothed groove 29) (see FIG. 3 ), to solve the problem that the casing and the first insulating component will rotate freely after the high temperature welding of the casing and the frame in the known technology.

The first insulating component 31 has a plurality of second toothed grooves 371 formed on the inner surface of the first through hole 37 at equal intervals or unequal intervals. The geometric direction of the second toothed grooves 371 is consistent with the axis of the first insulating component 31 The same direction.

The second insulating component 32 is loaded into the receiving hole 24 by using a ring 322, so that the outer flange 321 of the second insulating component 32 is sandwiched between the stopper 27 and the ring 322 and can be stably placed on the sleeve. 21 in. The insulation assembly 30 can maintain the separation between the bushing 21 and the contact assembly 40 .

As shown in FIG. 9 , the contact component 40 is a rod-shaped object with a contact portion 41 , an end portion 42 and a connection portion 43 , and the connection portion 43 is located between the contact portion 41 and the end portion 42 . The contact part 41 is disposed in the first insulating component 31 and the second insulating component 32 , and the end part 42 can be connected to the conductive circuit of the PC board, so that the contact component 40 is electrically connected with the PC board. The outer surface of the contact portion 41 has several second tooth portions 44 corresponding to the second tooth-shaped grooves 371 of the first insulating component 31; when the contact component 40 is combined with the first insulating component 31 The second tooth portion 44 of the contact portion 41 engages with the second tooth-shaped groove 371 of the first insulating component 31, so that the contact component 40 and the first insulating component 31 are separated by the second anti-rotation structure (ie, the second anti-rotation structure). The tooth portion 44 and the second tooth-shaped groove 371) form a stable combination (see FIG. 3 ), to solve the problem that the first insulating component and the contact component will be free after the high temperature of the surface adhesion process of the anti-rotation joint and the substrate in the known technology. Rotation problem.

Please refer to Figure 10, which is the second embodiment of the anti-rotation joint for the shielding structure of the present invention. In order to be able to adapt to various types of insulation components and the combined position between the bushings, the position of the first anti-rotation structure has been changed. , the anti-rotation joint 50 includes a metal sleeve 51 , an insulating component assembly 60 and a contact component 70 .

As shown in FIG. 11 , the sleeve 51 can be used to receive the insulating assembly 60. The sleeve 51 has a first end 52 and a second end 53. The inside of the sleeve 51 has a level of receiving hole 54. The receiving hole 54 consists of A long alcove 541 and a short alcove 542 are jointly formed, and the inside of the long alcove 541 and the short alcove meet to form an annular flat bottom. The sleeve 51 has a sleeve body 55, a tubular end 56 and a connecting portion 57. The outer diameter and wall thickness of the tubular end 56 are smaller than the sleeve body 55. The connecting portion 57 is located at the first end of the sleeve 51. 52 at one end. There are several first tooth-like grooves 58 on the surface of the flat bottom of the long alcove 541 , the geometric direction of which is different from the axial direction of the sleeve 21 , and they are arranged in groups at equal intervals or at unequal intervals. The outer wall of the tubular end portion 56 is threaded for mechanical and electrical connection with a connector having a threaded interface.

The insulating component combination 60 is coaxially arranged in the long alcove 541 of the receiving hole 54 of the sleeve 51, which has a first insulating component 61 and a second insulating component 62, and the second insulating component 62 and the first insulating component 61 Together form a tubular element. As shown in Figure 12, the first insulating component 61 has a first end 63 and a second end 64, and has a groove 65 and a through hole 66 inside, and a slope 67 is formed at the end of the through hole 66, and the slope 67 is located on the first insulating component. The second end 64 of 61. The first insulating element 61 includes a first tubular end 68 and a second tubular end 69 , wherein the first tubular end 68 is sized to fit into the elongated recess 541 of the bushing 51 . The end surface of the first end 63 of the first insulating component 61 has several first teeth 631 corresponding to the first toothed groove 58 of the sleeve 51; when the first insulating component 61 is combined with the sleeve 51, the several first teeth A tooth portion 631 meshes with the first tooth-shaped groove 58, so that the first insulating component 61 and the bushing 51 become stable through the first anti-rotation structure (ie, the first tooth portion 631 and the first tooth-shaped groove 58). In order to solve the problem of free rotation of the sleeve and the first insulation component after the sleeve and the frame are welded at high temperature in the known technology.

As shown in FIG. 13 , the contact assembly 70 is a sheet and is disposed in the insulating assembly assembly 60. The contact assembly 70 has a contact portion 71, a terminal portion 72 and a connection portion 73, and the connection portion 73 is located at the contact portion 71. and the end portion 72 . The end of the contact portion 71 has a clamping elastic piece 74 located on the slope 67 of the first insulating component 61 and extending to the second insulating component 62 , which can be used to receive the inner conductor of the mating connector to form an electrical connection. The end portion 72 can be connected to the conductive circuit of the PC board, so that the contact assembly 70 can be electrically connected with the PC board.

Claims (5)

1. masking structure swirel, this masking structure is fixed on the PC plate, this swirel and PC plate are become to be electrically connected, this swirel comprises a sleeve pipe, insulation assembly combination, reaches a contact assembly, this sleeve pipe has one first end and second end, and its inside has class's accepting hole; This insulation assembly combination has first insulation assembly, reaches one second insulation assembly, this first insulation assembly is arranged on the accepting hole of this sleeve pipe, and near first end of this sleeve pipe, this second insulation assembly is configured in the accepting hole of this sleeve pipe, and second end of close this sleeve pipe; This contact assembly has a contact site and a terminal part, and this contact site is disposed in this first, second insulation assembly, and this terminal part and this PC plate become and be electrically connected; It is characterized in that: this swirel also comprises first anti-rotation structure, and this first anti-rotation structure comprises several first tooth portions and several first dentation grooves are located between the sleeve pipe and first insulation assembly, and making between sleeve pipe and first insulation assembly becomes firm combining.

2. masking structure swirel as claimed in claim 1 is characterized in that: the described first tooth portion is formed on the outer surface of this first insulation assembly, and the first sulcus fimbriodentatus groove is formed on the inner surface of the accepting hole of this sleeve pipe, and corresponding with several first tooth portions.

3. masking structure swirel as claimed in claim 1, it is characterized in that: class's accepting hole of described sleeve pipe is made of a long alcove and a short alcove, the inside of this long alcove forms annular flat bottom with short alcove joint, this first sulcus fimbriodentatus groove is formed on the surface of flat bottoms, and the first tooth portion is formed on the terminal surface of first insulation assembly and is corresponding with the first dentation groove.

4. masking structure swirel as claimed in claim 1 is characterized in that: have one second anti-rotation structure between described first insulation assembly and contact assembly, making becomes firm binding between first insulation assembly and contact assembly.

5. masking structure swirel as claimed in claim 4, it is characterized in that: described second anti-rotation structure comprises several second tooth portions and several second dentation grooves, this second tooth portion is formed on the outer surface of the contact site of contact assembly, this second sulcus fimbriodentatus groove is formed on the inner surface of this first insulation assembly, and corresponding with the second tooth portion of contact site.

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