CN200969459Y

CN200969459Y - Electrical connector

Info

Publication number: CN200969459Y
Application number: CNU2006200668273U
Authority: CN
Inventors: 朱德祥
Original assignee: Lotes Guangzhou Co Ltd
Current assignee: Lotes Guangzhou Co Ltd
Priority date: 2006-10-31
Filing date: 2006-10-31
Publication date: 2007-10-31
Anticipated expiration: 2016-10-31

Abstract

The utility model relates to an electrical connector, which is used for electric property connection of chip module and circuit board. The electrical connector consists of a base body and a conductive terminal arranged in the base body. The base body is arranged with block button device which is clipped on the circuit board. Compared with the current technology, the base body of the electrical connector of the utility model is arranged with the block button device clipped on the circuit board, so that the connection of the electrical connector and the circuit board is stable and firmly, which prevents the warp caused in the welding of the electrical connector and the circuit board effectively, guarantees better contact of the electrical connector and the circuit board, and ensures better electric property connection of the chip module and the circuit board.

Description

Electric connector

[technical field]

The utility model relates to a kind of electric connector, refers to a kind of electric connector of chip module to circuit board that be used to electrically connect especially.

[background technology]

Live in progressive, the social development, the design of electric connector is also being updated.Be used to electrically connect the improvement of chip module for original to the electric connector of circuit board, the structure setting that improves terminal or base body often that engineers and technicians pay close attention to, make them bring into play better effect, this is an example No. 200310103528.3 with Chinese patent; Or improve the nested card holding structure of base body and slide cover, and make both combinations more firm, the slide relative between slide cover and base body is also respond well, and this is an example No. 01280609.9 with Chinese patent; Or stir the dead man that lid slides with respect to pedestal for guaranteeing that the firm activity winding of cover plate and pedestal is provided with or improves, as No. the 02140459.3rd, Chinese patent etc.Small part personage has noticed the problem that this type electric connector is connected with circuit board, as Chinese patent 03152821.X number and No. 03262254.6, by the hole is set on matrix, thereby avoid electric connector to shrink uneven and warpage that cause crossing the solder furnace cooling back matrix that is heated; Chinese patent No. 01269860.1 and 200420026549.X number, realize that by retaining sheet or some screw fixing holes are set electric connector is connected with the firm of circuit board respectively on pedestal, and No. the 5713744th, United States Patent (USP) is nested to reach this purpose by holding layer by layer especially.Yet above-mentioned design is not an effect obviously is exactly too complexity or attended operation trouble of product structure inadequately.

Therefore, be necessary to design a kind of novel electric connector, to overcome above-mentioned defective.

[summary of the invention]

The purpose of this utility model is to provide a kind of electric connector, and it can prevent effectively that electric connector from producing warpage when welding with circuit board, realizes that excellent electrical property is connected between chip module and the circuit board, thus the good serviceability of assurance chip module.

For reaching above-mentioned creation purpose, the utility model electric connector, be used to electrically connect chip module to circuit board, described electric connector comprises base body and is arranged at the interior conducting terminal of base body that wherein said base body is provided with the bayonet unit that is fastened on the circuit board.

Compared with prior art, the base body of the utility model electric connector is provided with the bayonet unit that is fastened on the circuit board, electric connector firmly is connected with circuit board, thereby prevent that effectively electric connector from producing warpage when welding with circuit board, and then guarantee that electric connector electrically contacts with circuit board well, guarantee that chip module is connected with the circuit board excellent electrical property.

[description of drawings]

Fig. 1 is the schematic perspective view of the utility model electric connector;

Fig. 2 is the combination schematic diagram of electric connector shown in Figure 1 and circuit board;

Fig. 3 is the three-dimensional exploded view of combination schematic diagram shown in Figure 2;

Fig. 4 is the schematic perspective view of the slide cover of the utility model electric connector;

Fig. 5 is the schematic perspective view of the base body of the utility model electric connector;

Fig. 6 is the partial enlarged view of base body shown in Figure 5;

Fig. 7 is another partial enlarged view of base body shown in Figure 5;

Fig. 8 is the front view of base body shown in Figure 5;

Fig. 9 is the front view of the base body of the utility model second embodiment electric connector.

[embodiment]

Below in conjunction with the drawings and specific embodiments the utility model electric connector is described further.

Referring to figs. 1 through Fig. 5, the utility model electric connector 1 is used to electrically connect chip module (not shown) to circuit board 5, described electric connector 1 comprises base body 2, rocking bar 3 and slide cover 4, wherein slide cover 4 is fastened on the base body 2, rocking bar 3 is contained between slide cover 4 and the base body 2, in order to drive slide cover slippage on base body 2.

Base body 2 is roughly regular rectangular structure, and this base body 2 is provided with the plurality of terminals accepting hole (not shown) of accommodating conducting terminal (not shown), and the base body bottom is provided with and the contacted tin ball of conducting terminal (not shown).Described base body 2 is provided with a receiving space 21, and this receiving space 21 is the semicircular in shape roughly through the upper surface of base body 2 and two ends laterally.Described base body 2 upper surfaces are provided with slide cover 4 and hold 22,23 and one first grooves of two first, second projections of cooperating 24, two second grooves 25 mutually, wherein first projection 22 vertically is arranged at the upper surface of base body 2, second projection 23 is positioned at receiving space 21, the first grooves 24 and second groove 25 and lays respectively at the both sides of receiving space 21 and be connected with receiving space 21.Described base body 2 bottoms are extended and to be provided with at least three bayonet units 20 that are fastened on the circuit board 5, and what described bayonet unit 20 both can be that plastic material forms also can be that metal material forms, and itself and base body 2 are one-body molded.In the present embodiment, base body 2 is provided with four bayonet units 20, lays respectively at four corners of the bottom of base body 2.Described bayonet unit 20 comprises an a junction 201 and a hook part 202, and described connecting portion 201 links to each other with base body 2, and hook part 202 is extended by connecting portion 201.

Rocking bar 3 is roughly L-shaped, be provided with base portion 30 and reach by base portion 30 extended movable parts 31, and base portion 30 is roughly perpendicular with movable part 31, and the base portion 30 of wherein said rocking bar 3 is contained in the receiving space 21 of base body 2.

Slide cover 4 is provided with main part 40 and reaches by main part 40 extended heads 41, the both sides of the main part 40 of described slide cover 4 are extended left side wall 42 and right side wall 43 respectively downwards, left and

right sidewall

42,43 and main part 40 are combined into "  " shape, help closely fastening with base body 2.Described right side wall 43 is provided with supporting plate 431 and the baffle plate 432 that holds rocking bar 3, among this embodiment, described supporting plate 431 is positioned at right side wall 43 position of side on the lower side, work to accept rocking bar 3, baffle plate 432 is positioned at right side wall 43 position of side on the upper side, can prevent that rocking bar 3 from upspringing because of elastic force or extraneous improper vibration, baffle plate 432 is in position near the head 41 of slide cover 4 with respect to supporting plate 431.Head 41 bottom surfaces of described slide cover 4 are provided with two first, second 44,45 and one first holding sections of recessed draw-in groove 46, two second holding sections 47 and near semicircular activity space 48.The wherein said first recessed draw-in groove 44 vertically is arranged at the head 41 of slide cover 4, and closely fasten with two first projections 22 of base body 2, two second recessed draw-in grooves 45 lay respectively at the two ends of activity space 48 and are attached thereto logical, button is held on two second projections 23 of base body 2, first,

second holding section

46,47 is arranged at the both sides of activity space 48 respectively, and be fastened on respectively in one first, two

second groove

24,25 of base body 2, so can slide cover 4 is fixing with base body 2.Activity space 48 is horizontally set but does not run through slide cover 4 that this activity space 48 matches with the receiving space 21 of base body 2 and is used to accommodate the base portion 30 of rocking bar 3.Slide cover 4 be provided with accept chip module pin (not shown) run through jack (not shown).After electric connector 1 assembling is finished, the corresponding connection of terminal accommodation holes (not shown) on described through hole and the base body 2.

Circuit board 5 is provided with the through hole that matches with bayonet unit 20 50 and contacts with the tin ball and then reach electric conductor (not shown) with the conducting terminal electric connection.After the soldering, the electric conductor of conducting terminal and circuit board 5 is realized directly electrically connecting.

During assembling, earlier conducting terminal is contained in the terminal accommodation holes of base body 2; Then the base portion 30 with rocking bar 3 is positioned in the receiving space 21 of base body 2, and rocking bar 3 is immobilizated in the

machine base body

2, and 31 of the movable parts of rocking bar 3 can upwards be placed arbitrarily earlier; And then with first, second recessed draw-in

groove

44,45 of described slide cover 4 and first,

second holding section

46,47 respectively with base body 2 on first,

second projection

22,23 and first,

second groove

24,25 hold and cooperate, slide cover 4 and base body 2 are fixed together; And then with the main part 40 of slide cover 4 and left and

right sides sidewall

42,43 stably fastenings on base body 2; The movable part 31 of hand-held rocking bar 3 rotates distant bar 3 gently then, holds in the portion 43 until the frame that it is fastened in slide cover 4 main parts 40 1 sidewalls, so far electric connector 1 can be assembled, and carries out soldering again.Because base body 2 is provided with the bayonet unit 20 that is fastened on the circuit board 5, when described electric connector 1 is installed on the circuit board 5, the connecting portion 201 of bayonet unit 20 is positioned at the through hole 50 of circuit board 5, hook part 202 then closely colludes the inner wall edge of the through hole 50 that is stuck in circuit board 5, electric connector 1 firmly is connected with circuit board 5, thereby effectively prevent to be arranged on out-of-flatness on the base body 2 because of conducting terminal, or the bad phenomenon such as warpage that electric connector 1 bottom surface is heated or causes owing to center of gravity is asymmetric when cooling off in the welding process, and then guarantee that electric connector electrically contacts with circuit board 5 well, guarantee that chip module is connected with circuit board 5 excellent electrical property.

Fig. 6 is second embodiment of the utility model electric connector 1, itself and the first embodiment difference be described bayonet unit 20 ' be provided with two connecting portions 201 ', two connecting portions 201 ' further extend respectively, two hook parts 202 '.Described two hook parts 202 ' extend round about, and two hook parts 202 ' for being provided with dorsad, it points to mutually outwardly, and it also can reach the described purpose of the foregoing description, does not repeat them here.

Certainly, described bayonet unit can not be one-body molded with base body 2, and this moment, base body 2 correspondingly was provided with structure such as the support slot that holds mutually with it, and bayonet unit can be fastened in wherein, it also can reach the described technique effect with first, second embodiment, does not repeat them here.

Claims

1. an electric connector is used to electrically connect chip module to circuit board, and described electric connector comprises base body and be arranged at the interior conducting terminal of base body that it is characterized in that: described base body is provided with the bayonet unit that is fastened on the circuit board.

2. electric connector as claimed in claim 1 is characterized in that: described bayonet unit is positioned at the bottom of base body.

3. electric connector as claimed in claim 1 is characterized in that: described bayonet unit is positioned at four corners of base body bottom.

4. electric connector as claimed in claim 1 is characterized in that: described bayonet unit comprises at least one connecting portion and at least one hook part.

5. electric connector as claimed in claim 1 is characterized in that: described bayonet unit is provided with two connecting portions and two hook parts.

6. as claim 4 or 5 described electric connectors, it is characterized in that: described hook part is extended by connecting portion.

7. electric connector as claimed in claim 5 is characterized in that: described two hook parts extend round about.

8. electric connector as claimed in claim 7 is characterized in that: described two hook parts are provided with dorsad, and it points to mutually outwardly.

9. electric connector as claimed in claim 1 is characterized in that: described base body is provided with and the contacted tin ball of conducting terminal.

10. electric connector as claimed in claim 1, it is characterized in that: described electric connector also comprises slide cover, slide cover is provided with the holding section that holds cooperation with base body mutually, is provided with between slide cover and base body in order to drive the rocking bar of slide cover.