CN2891584Y

CN2891584Y - Fastener

Info

Publication number: CN2891584Y
Application number: CN 200620055617
Authority: CN
Inventors: 林庆其
Original assignee: Lotes Guangzhou Co Ltd
Current assignee: Lotes Guangzhou Co Ltd
Priority date: 2006-03-02
Filing date: 2006-03-02
Publication date: 2007-04-18
Anticipated expiration: 2016-03-02

Abstract

The utility model relates to a coupling apparatus which can hold an electric connector at an electronic component, comprising a main body and a coupling part extended from the bilateral of the body respectively, wherein an elastic arm which can couple the electronic component is arranged extendedly downward the end of the coupling part, and the body and the coupling part form a reception space which can accept the elastic deformation of the elastic arm. Further, the coupling apparatus of the utility model is characterized in that the coupling apparatus comprises the body and the coupling part extended from the bilateral of the body respectively, and the elastic arm which can couple the electronic component is arranged extendedly downward the end of the coupling part, and an initial point and a coupling point of the deformation are arranged at the coupling apparatus, the initial point of the deformation is arranged at the outboard of the coupling apparatus.

Description

Bayonet unit

[technical field]

The utility model relates to a kind of bayonet unit, refers in particular to the bayonet unit that electric connector can be retained on the substrate.

[background technology]

Known bayonet unit as shown in Figure 1 to Figure 3, this bayonet unit 10 can be installed on the electric connector (figure do not show), and can make electric connector peg graft and be fixed on the circuit board 20.This bayonet unit 10 comprises main part 11 and extends two elastic arms 13 and two connecting portions 12 downwards by this main part 11, and this connecting portion 12 and strip (scheming not show) are connected and are positioned at the outside of described elastic arm 13.Described elastic arm 13 comprises extension 14 and the clamping part 15 that outwards protrudes, during assembling, see also Fig. 2 and shown in Figure 3, earlier in the fixing hole 21 with extension 14 alignment circuit plates 20, follow firmly piezoelectricity connector again, clamping part 15 is moved down be fastened on the outer rim of these fixing hole 21 downsides, electric connector (figure does not show) is fixed on the circuit board with this.But when in the fixing hole 21 that extension 14 is pressed into circuit board 20, strain can take place in elastic arm 13, and elastic arm 13 directly links to each other with main part 11, and do not have and can elastic deformation amount's holding area take place ccontaining elastic arm 13, be easy to make elastic arm 13 because of excessively pressurized generation permanent deformation like this, and follow the string, it can not effectively be detained hold electric connector and circuit board, influence its normal use.

Therefore, be necessary to design a kind of new bayonet unit, to overcome above-mentioned defective.

[utility model content]

The utility model purpose is to provide a kind of bayonet unit that can be retained on effectively on the electronic component.

To achieve these goals, the utility model bayonet unit, electric connector can be retained on the electronic component, this bayonet unit comprises main part and the connecting portion that is extended respectively by these main part both sides, but, form the receiving space that to accommodate described elastic arm elastic deformation amount between described main part and described connecting portion downwards by the terminal elastic arm that is provided with the buckle electronic component that extends of connecting portion.

The utility model bayonet unit in addition, comprise main part and the connecting portion that extends respectively by these main part both sides, but by the terminal elastic arm that is provided with the buckle electronic component that extends of connecting portion, described bayonet unit is provided with distortion starting point and buckle point, and the distortion starting point is arranged at the outside of buckle point.

Compared with prior art, the utlity model has following advantage: owing between main part and connecting portion, be provided with the receiving space that to accommodate the elastic arm elastic deformation amount, can avoid elastic arm permanent deformation to take place because of excessive pressurized, guarantee that elastic arm has elasticity preferably, bayonet unit can be retained on electric connector on the electronic component effectively.In addition, the distortion starting point is arranged at the outside of buckle point, and bayonet unit is retained on the electronic component effectively.

[description of drawings]

Fig. 1 is the schematic diagram of the bayonet unit of prior art;

Fig. 2 is the schematic diagram of bayonet unit shown in Figure 1 and circuit board installation process;

Fig. 3 is that bayonet unit shown in Figure 1 is installed in the schematic diagram in the circuit board;

Fig. 4 is that the utility model bayonet unit is contained in the schematic diagram in the electric connector;

Fig. 5 is the schematic diagram of the utility model bayonet unit;

Fig. 6 is the schematic diagram of bayonet unit shown in Figure 5 and substrate installation process;

Fig. 7 is that bayonet unit shown in Figure 5 is installed in the schematic diagram in the substrate;

Fig. 8 is the schematic diagram of second embodiment of the utility model bayonet unit;

Fig. 9 is the schematic diagram of bayonet unit shown in Figure 8 and substrate installation process;

Figure 10 is that bayonet unit shown in Figure 8 is installed in the schematic diagram in the substrate;

Figure 11 is the stereogram of the 3rd embodiment of the utility model bayonet unit.

[embodiment]

Below in conjunction with accompanying drawing the utility model bayonet unit is described further.

Please consult Fig. 4 simultaneously to shown in Figure 7, the utility model bayonet unit 10 is mounted and fixed in the accommodation hole (not shown) of electric connector 100 bottoms setting, and electric connector 100 is retained on the electronic component (be substrate 200 in the present embodiment, also can be the other electron component that is connected with electric connector certainly).

Described bayonet unit 10 comprises main part 11 and extends two connecting portions 12 respectively by the both sides of this

main part

11,12 times extensions of this connecting portion are provided with and can be buckled in elastic arm 13 on the substrate 200, be provided with distortion starting point 16 in the junction of elastic arm 13 and connecting portion 12, described

main part

11 and 12 of two connecting portions are arranged with receiving space 14, and this receiving space 14 and two elastic arm 13 spaces at interval connect.Convex with on the described elastic arm 13 can with substrate 200 mutually buckle collude card division 131, colludes card division 131 and be provided with buckle point 1310, and this buckle point 1310 is positioned at the inboard of distortion starting point 16 on vertical position.Simultaneously, be provided with to guide at the end of this elastic arm 13 and collude card division 131 and be buckled in guidance part 132 on the substrate 200 rapidly.The both side ends of described main part 11 is extended and is provided with the holding section 111 that can fasten with electric connector 100.

During assembling, as shown in Figure 6 and Figure 7, at first with the fixing hole 210 of guidance part 132 align substrates 200, after piezoelectricity connector 100 slightly firmly, owing to collude the both sides that card division 131 compresses fixing hole 210, force two elastic arms 13 to push to the centre, elastic module when strains take place elastic arm 13 at this moment is contained in the described receiving space 14, and then the piezoelectricity connector 100 of exerting oneself, colluding card division 131 moves down, up to colluding the bottom outer rim that card division 131 slippages are crossed fixing hole 210 and are buckled in fixing hole 210, at this moment, electric connector 100 is retained on the substrate 200 fully.Because, receiving space 14 can be accommodated the deflection when strain takes place elastic arm 13, can avoid elastic arm 13 because of permanent deformation takes place excessive pressurized, guarantee that elastic arm 13 has elasticity preferably, bayonet unit 10 can be retained on electric connector on the substrate 200 effectively.In addition, distortion starting point 16 is arranged at the outside of buckle point 1310, and when elastic arm 13 compressed the inwall of fixing hole 210, elastic arm 13 had the trend that outwards moves, and bayonet unit more effectively is retained on the substrate 200.

Following table is that bayonet unit and the utility model bayonet unit of background technology is installed on the substrate, and bayonet unit is to the experimental data of the confining force of substrate:

The bayonet unit of background technology	The utility model bayonet unit
The bayonet unit of background technology	The utility model bayonet unit	5.74kg	6.68kg
5.56kg	6.32kg	5.74kg	6.68kg
5.56kg	6.32kg	5.34kg	5.99kg
5.64kg	6.03kg	5.34kg	5.99kg

Obviously the bayonet unit than background technology is big to the confining force of substrate to the confining force of substrate also can to find out the utility model bayonet unit from above table.

Fig. 8 to Figure 10 is second embodiment of the utility model bayonet unit 20, different with the foregoing description is: main part 21 is provided with two protuberances 212 that can be resisted against on this elastic arm 23 and prevent to move in elastic arm 23 excessively when elastic arm 23 excessively moves inward, this protuberance 212 is placed in the receiving space 24.During assembling, also be at first with the fixing hole 210 of guidance part 132 align substrates 200, after piezoelectricity connector 100 slightly firmly, force two elastic arms 23 to the centre extruding, when elastic arm 23 moves in excessively, elastic arm 23 can be resisted against on the protuberance 212, so just can prevent to move in elastic arm 23 is excessively, and then the piezoelectricity connector of exerting oneself, collude card division 231 and move down, up to colluding the bottom outer rim that card division 231 slippages are crossed fixing hole 210 and are buckled in fixing hole 210, electric connector is retained on the substrate 200 fully.Because receiving space 24 also can be accommodated the deflection when strain takes place elastic arm 23, simultaneously, on main part 21, be provided with protuberance 212, can prevent to move in elastic arm 23 excessively, can avoid elastic arm 23 permanent deformation to take place because of excessive pressurized, can guarantee that elastic arm 23 has elasticity preferably, and distortion starting point 26 is arranged at the inboard of buckle point 2310.In implementation process, also can reach the described purpose of the foregoing description.

Figure 11 is the 3rd embodiment of the utility model bayonet unit 30, and the main distinction of this embodiment and first embodiment is: main part 31 is not a tabular, but its cross section is the ㄩ shape.It is basic identical with first embodiment in implementation process, just discusses no longer in detail at this.

Claims

1. bayonet unit, electric connector can be retained on the electronic component, it is characterized in that: this bayonet unit comprises main part and the connecting portion that is extended respectively by these main part both sides, but, form the receiving space that to accommodate described elastic arm elastic deformation amount between described main part and described connecting portion downwards by the terminal elastic arm that is provided with the buckle electronic component that extends of connecting portion.

2. bayonet unit as claimed in claim 1 is characterized in that: described main part is a tabular.

3. bayonet unit as claimed in claim 2 is characterized in that: described main part is provided with can be resisted against when moving in the elastic arm and prevents the protuberance that moves in elastic arm excessively on the elastic arm.

4. bayonet unit as claimed in claim 3 is characterized in that: described protuberance is by the extension of main part one end and be positioned at described receiving space.

5. bayonet unit as claimed in claim 1 is characterized in that: described main part cross section is the ㄩ shape.

6. bayonet unit as claimed in claim 1 is characterized in that: at least one side of described main part is extended and is provided with the holding section that can fasten with electric connector.

7. bayonet unit as claimed in claim 1 is characterized in that: convex with on the described elastic arm can with electronic component mutually buckle collude the card division.

8. bayonet unit as claimed in claim 7 is characterized in that: described elastic arm end is provided with can guide this and collude the card division and make it be buckled in guidance part on the electronic component.

9. bayonet unit as claimed in claim 1 is characterized in that: described electronic component is a substrate.

10. bayonet unit, comprise main part and the connecting portion that extends respectively by these main part both sides, but by the terminal elastic arm that is provided with the buckle electronic component that extends of connecting portion, it is characterized in that: described bayonet unit is provided with distortion starting point and buckle point, and the distortion starting point is arranged at the outside of buckle point.

11. bayonet unit as claimed in claim 10 is characterized in that: described distortion starting point is positioned at the junction of elastic arm and connecting portion.

12. bayonet unit as claimed in claim 10 is characterized in that: convex with on the described elastic arm can with electronic component mutually buckle collude the card division, described buckle point is positioned at this and colludes on the card division.