CN2872795Y

CN2872795Y - Fastener

Info

Publication number: CN2872795Y
Application number: CN 200620055054
Authority: CN
Inventors: 林庆其
Original assignee: Lotes Guangzhou Co Ltd
Current assignee: Lotes Guangzhou Co Ltd
Priority date: 2006-02-20
Filing date: 2006-02-20
Publication date: 2007-02-21
Anticipated expiration: 2016-02-20

Abstract

The utility model relates to a clip device capable of fixing connector on substrate. The clip device comprises a basal part, a first elastic arm downwardly extending from the basal part, a second elastic arm upwardly extending from end of the first elastic arm, and a clip part extending from the second elastic arm and abutting against an abutting part. The utility model has the following advantages: since the second elastic arm provided with the clip part is not directly connected with the basal part, when the clip device is disposed in the substrate, the second elastic arm can move freely without restriction by the basal part, so that good elasticity of the elastic arm can be guaranteed; when the elastic arm is compressed, the clip part abuts against the abutting part, so that the clip device can effectively fix the connector on the substrate.

Description

Bayonet unit

[technical field]

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

[background technology]

Known bayonet unit structure such as U.S. Pat 5,415,565, buckle 40 is plugged in the through hole 44,46 of circuit board 16, it comprises upper end 70,70a and extends two arms that link together 60,62 respectively by this upper end 70,70a, upper end 70,70a convex with relative projection 80,80a respectively, each arm 60,62 convex with respectively from top to bottom down protuberance 94,94a, on hangnail 66,66a, hangnail 64,64a down, by protuberance 94,94a down so that bayonet unit 40 is retained in the connector 12.When being held in connector 12 on the circuit board 16, should then be housed in the through hole 44 more earlier with the through hole 44 on the 90 alignment circuit plates 16 of tapering to pressing down connector 12, two arms 60,62, hangnail is run through hole wall and is pushed up and down, and then the pressure that arm 60,62 also is subjected to the through hole axis direction, projection 80,80a are abutted against each other together, and promptly the distance C between projection 80, the 80a is zero, at this moment, buckle 40 can not move again, thereby, connector 12 is fixed on the circuit board 16.But because the end of projection 80,80a all is to be conical, and the thickness of buckle is less, like this, even projection 80,80a are abutted against each other together, but because hangnail 64 is pressed in through hole 44 both sides, 64a reaches hangnail 66,66a down, can make arm 60,62, can not be abutted together because of excessive pressurized staggers two projections 80,80a mutually, buckle 40 can not well be fixed in the through hole 44 of circuit board 16, influence connector 12 and be connected with the effective of circuit board 16.

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 electric connector can be retained on effectively on the substrate.

To achieve these goals, the utility model bayonet unit, a kind of bayonet unit, connector can be retained on the substrate, this bayonet unit comprises base portion, is extended downwards by base portion to be provided with first elastic arm, and the described first elastic arm end extends upward and is provided with second elastic arm, the extension of second elastic arm is provided with holding part, and this holding part can be resisted against on the stop section.

Compared with prior art, the utlity model has following advantage: be provided with holding part because second elastic arm extends, second elastic arm directly is not connected with base portion, in the time of like this in bayonet unit is pressed on substrate, because second elastic arm is not subjected to base portion to retrain freedom of movement, guarantee that elastic arm has elasticity preferably all the time, and holding part can be resisted against on the stop section, and holding part can be resisted against on the stop section when the elastic arm pressurized, and bayonet unit can be retained on connector on the substrate effectively.

[description of drawings]

Fig. 1 is that the utility model bayonet unit is contained in the schematic diagram in the electric connector;

Fig. 2 is the stereogram of the utility model bayonet unit;

Fig. 3 is the schematic diagram of bayonet unit shown in Figure 2 and substrate installation process;

Fig. 4 is that bayonet unit shown in Figure 2 is contained in the schematic diagram in the substrate;

Fig. 5 is the partial sectional view of the utility model second embodiment bayonet unit and connector combination;

Fig. 6 is the stereogram of the 3rd embodiment of the utility model bayonet unit;

Fig. 7 is the schematic diagram of bayonet unit shown in Figure 6 and substrate installation process;

Fig. 8 is that bayonet unit shown in Figure 6 is contained in the schematic diagram in the substrate.

[embodiment]

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

Please consult Fig. 1 simultaneously to shown in Figure 4, the utility model bayonet unit 10 is mounted and fixed in the accommodation hole (figure does not show) of connector 100 bottoms setting, and electric connector 100 is retained on the substrate 200 (substrate is a circuit board etc.).

Described bayonet unit 10 comprises base portion 11, convexes with fastener 111 in the both sides of this base portion 11, and this fastener 111 can fix the utility model bayonet unit 10 in the accommodation hole of connector 100.Extend downwards by the centre position by base portion 11 bottoms and to be provided with first elastic arm, 12, the first elastic arms, 12 ends and to extend upward and be provided with second elastic arm 13.On base portion 11, extend to form a stop section 112 with same end and this first elastic arm 12 relative opposite sides at the first elastic arm place, and described stop section 112 is arranged at the outside of second elastic arm 13, the terminal extension of second elastic arm 13 is provided with the holding part 133 that can be resisted against on the described stop section 112, and this holding part 133 is when free state and

elastic arm

12,13 approximate vertical.Upwards be respectively equipped with first guidance part 121 and second guidance part 131 (also can only on first elastic arm and one of them elasticity of second elastic arm, be provided with guidance part) that bayonet unit 10 can be directed in the substrate 200 in the junction of the end of described two

elastic arms

12,13, and on this two

elastic arm

12,13, also be respectively equipped with can with substrate 200 first the colluding card division 122 and second and collude card division 132 of buckle mutually, this first colludes card division 122 and second to collude card division 132 adjacent with second guidance part 131 with first guidance part 121 respectively.

When being assembled into connector on the substrate, at first with the fixing hole 210 of first guidance part 121 and second guidance part, 131 align substrates 200, after piezoelectricity connector slightly firmly, make first to collude card division 122 and second and collude on the sidewall that card division 132 is pressed on fixing hole 210.Because first elastic arm 12 links together with base portion 11, and second elastic arm 13 does not link together with base portion 11, so collude card division 122 and second when colluding the sidewall that card division 132 is pressed on fixing hole 210 when first, the strain of first elastic arm 12 is very little, and second elastic arm 13 can be to the direction distortion near first elastic arm 12, and then with defeating connector, first colludes card division 122 and second colludes card division 132 and moves down, collude card division 122 and second up to first and collude the bottom outer rim that card division 132 is buckled in fixing hole 210, collude card division 122 and second and collude the moment that card division 132 slips over fixing hole 210 when first, first

elastic arm

12 and 13 bounce-backs of second elastic arm, and be resisted against on fixing hole 210 inwalls, holding part 133 is resisted against on the stop section 112, and at this moment, electric connector 100 is retained on the substrate 200 fully.In this whole process, because second elastic arm 13 is not subjected to base portion 11 constraints, freedom of movement, this guarantees that elastic arm has elasticity preferably all the time, holding part 133 can be resisted against on the stop section 112 when the elastic arm pressurized, and bayonet unit 10 can be retained on connector on the substrate 200 effectively.

Shown in Figure 5 is the schematic diagram of second embodiment of the novel bayonet unit 20 of this reality, different with the foregoing description is: stop section 24 is arranged on the insulating body 110 of connector, and the lateral length of base portion 21 have only the base portion in the foregoing description lateral length nearly half, first elastic arm 22 is extended to form by base portion 21 bottoms one side, and second elastic arm 23 is positioned at the outside of base portion 21.It also can reach the described purpose of the foregoing description in implementation process.

Fig. 6 to Fig. 8 is the 3rd embodiment of the utility model bayonet unit 30, different with described first embodiment is: the lateral length of base portion 31 have only described first embodiment base portion lateral length nearly half, first elastic arm 32 is extended to form by base portion 31 bottoms one side, stop section 313 extends to form and is arranged at second elastic arm, 33 inboards by base portion 31, and is connected with first elastic arm 32.Described second elastic arm, 33 terminal extensions are provided with pulling part 334.

When being assembled into connector on the substrate, also be at first with the fixing hole 210 of first guidance part 321 and second guidance part, 331 align substrates 200, after piezoelectricity connector slightly firmly, make first to collude card division 322 and second and collude on the sidewall that card division 332 is pressed on fixing hole 210.Then more firmly to pressing down connector 100, make first to collude card division 322 and second and collude card division 332 and move down, collude card division 322 and second up to first and collude the bottom outer rim that card division 332 is buckled in fixing hole 210, collude card division 322 and second and collude the moment that card division 332 slips over fixing hole 210 when first, first elastic arm 32 and 33 bounce-backs of second elastic arm, and be resisted against on fixing hole 210 inwalls, holding part 333 is resisted against on the stop section 312, at this moment, electric connector 100 is retained on the substrate 200 fully.The electric connector interest will be gone out substrate, only need firmly pull in pulling part 334, the second elastic arms 33 towards power F direction and move, bayonet unit 30 can eject the fixing hole 210 of substrate 200.It also can reach the described purpose of the foregoing description in implementation process.

Claims

1. bayonet unit, connector can be retained on the electronic building brick, this bayonet unit comprises base portion, be provided with first elastic arm by base portion extension downwards, it is characterized in that: the described first elastic arm end extends upward and is provided with second elastic arm, the extension of second elastic arm is provided with holding part, and this holding part can be resisted against on the stop section.

2. bayonet unit as claimed in claim 1 is characterized in that: described stop section is extended to form and is arranged at second elastic arm outside by base portion.

3. bayonet unit as claimed in claim 1 is characterized in that: described stop section is extended to form and is arranged at the second elastic arm inboard by base portion, and is connected with first elastic arm.

4. bayonet unit as claimed in claim 3 is characterized in that: the terminal extension of described second elastic arm is provided with pulling part.

5. bayonet unit as claimed in claim 1 is characterized in that: described stop section is arranged on the insulating body of connector.

6. bayonet unit as claimed in claim 1 is characterized in that: described holding part is when free state and the elastic arm approximate vertical.

7. bayonet unit as claimed in claim 1 is characterized in that holding: described first elastic arm is extended to form by the centre position by the base portion bottom.

8. bayonet unit as claimed in claim 1 is characterized in that: described first elastic arm is extended to form by base portion bottom one side.

9. bayonet unit as claimed in claim 1 is characterized in that: at least one elastic arm be provided with can with electronic building brick mutually buckle collude the card division.

10. bayonet unit as claimed in claim 1 is characterized in that: at least one elastic arm end is provided with the guidance part that bayonet unit can be directed in the electronic building brick.