CN201008033Y

CN201008033Y - Absorption cover

Info

Publication number: CN201008033Y
Application number: CNU2007200483411U
Authority: CN
Inventors: 林国钦; 竺峰; 李华莲
Original assignee: Foxlink Electronics Dongguan Co Ltd
Current assignee: Fugang Electronic Dongguan Co Ltd; Foxlink Electronics Dongguan Co Ltd
Priority date: 2007-02-03
Filing date: 2007-02-03
Publication date: 2008-01-16
Anticipated expiration: 2017-02-03

Abstract

The utility model discloses a suction cover, which is installed on an electrical connector for assisting vacuum suction electrical connector and comprises a suction part and a plugging part, wherein the suction part is provided with a flat suction surface, the plugging part is fixed on a stop plane of the suction part and comprises a lengthwise extending plugging wall and a plurality of landscape extending ribs fixed on one side of the plugging wall, thickness of the plugging wall is smaller than distance between one inner surface which is against the installation terminal inner surface and the terminal contact end in the electrical connector plugging groove, the plugging wall thickness adding height of the rid is a little bigger than the width of the plugging groove, and thickness of the rib is smaller than seam thickness of the electrical connector two adjacent terminals. The suction cover can realize SMT of the electrical connector to increases the manufacture efficiency.

Description

Draw lid

Affiliated technical field

The utility model relates to a kind of absorption lid, relates in particular to the absorption lid that a kind of application SMT (Surface MountedTechnology) mounts electric connector.

Background technology

Along with development of electronic technology, the exploitation of integrated circuit and the application of semi-conducting material, SMT has become the manufacturing core technology of hyundai electronics information products.SMT has the reliability height, the antivibration ability is strong, and high frequency characteristics is good, easily is automated, advantage such as enhance productivity; And product with compact structure, volume are little, meet the requirement of miniaturization.Yet SMT utilizes vacuum pressure to draw the element that need mount, and comparatively strict to the requirement of element, the profile of element need be fit to the automation surface and mount, and the packaged form of element also need satisfy the requirement of chip mounter automatic material taking.Therefore for which adsorption plane out-of-flatness, adsorption plane and the uneven element in bottom surface that is mounted on the printed circuit board (PCB), SMT will be difficult to use.

The utility model content

The utility model purpose provides a kind of absorption lid, makes some elements that can't be applied to SMT originally can utilize SMT to carry out automation now and mounts.

For achieving the above object, absorption lid provided by the utility model mainly is made up of drawing section and insertion section.Drawing section longitudinal extension wherein, comprise absorption face and stop surface, smooth adsorption plane for the material sucking mouth absorption of SMT machine is arranged on described absorption face, the stop surface that is assemblied in the absorption lid in the respective electrical connector is replaced at the electric connector top, and described adsorption plane is parallel to electric connector and is mounted on bottom surface on the printed circuit board (PCB).The insertion section is installed on the stop surface of drawing section, the insertion wall that comprises longitudinal extension, this insertion wall has a lower surface and the upper surface relative with lower surface, this upper surface is installed with the rib of some horizontal expansions, the thickness that inserts wall less than in the insertion groove of electric connector and the inner surface of installing terminal in opposite directions another inner surface and the distance between the contact jaw of terminal, the thickness that inserts wall adds that the height of rib then is slightly larger than the width of insertion groove, and the thickness of rib is less than the gap width between two of the electric connector adjacent terminals and lay respectively between the terminals of adjacent.

In sum, the utility model is drawn lid and can be made some elements that can't use SMT originally can utilize SMT to carry out automation now to mount, improve production efficiency of products greatly, and reliability is promoted also.It is simple in structure that the utility model is drawn lid simultaneously, easy to make, can also recycle, though this absorption lid is complementary, but also increased the design cost of product, but when producing in enormous quantities, but can improve production efficiency of products greatly, save human resources and time, thereby reduce production cost of products.

Description of drawings

In Figure of description:

Fig. 1 draws the stereogram of lid for the utility model;

Fig. 2 draws the stereogram that covers another angle for the utility model;

Fig. 3 draws the stereogram of the respective electrical connector of lid for the utility model;

Fig. 4 draws the three-dimensional exploded view of lid and respective electrical connector for the utility model;

Fig. 5 draws the end view of lid and respective electrical connector for the utility model;

Fig. 6 draws the combination of side view of lid and respective electrical connector for the utility model.

The description of reference numerals of each element is as follows among the figure:

Draw and cover 100 drawing sections 2

End face 21 slots to make way 211

Absorption face 22 grooves 221

Adsorption plane 222 stop surfaces 23

End face 24 bottom surfaces 25

Insertion section 3 pedestals 31

Insert wall 32 lower surfaces 321

Upper surface 322 ribs 33

Electric connector 4 flanges 41

Insertion groove 42 inner surfaces 421

Terminal 43 bottom surfaces 44

Embodiment

By describing technology contents of the present utility model, structural feature in detail, being reached purpose and effect, below in conjunction with embodiment and cooperate graphic detailed description the in detail.

See also Fig. 1, Fig. 2 and Fig. 5, the utility model absorption is covered 100 and is comprised drawing section 2 and insertion section 3.These drawing section 2 longitudinal extensions, has a roughly rectangular trapezoidal lateral cross section, these 2 vertical two ends, drawing section form roughly at right angles trapezoidal end face 21, both lateral sides forms the absorption face 22 and the stop surface 23 of the rectangle that roughly is longitudinal extension respectively, wherein draw hypotenuse one side and right-angle side one side that face 22 and stop surface 23 lay respectively at described end face 21, this drawing section forms the end face 24 and the bottom surface 25 of longitudinal extension respectively in two ends about in the of 2, and wherein the transverse width of bottom surface 25 is greater than end face 24.The bottom of the both ends of the surface 21 of drawing section 2 also respectively is provided with a slot to make way 211, the roughly rectangular body of this slot to make way 211, and run through the bottom surface 25 and the stop surface 23 of this drawing section 2.

Insertion section 3 is from stop surface 23 close 25 places, bottom surface and protrude out formation between two slots to make way vertically upward.This insertion section 3 has the pedestal 31 that is positioned at the longitudinal extension on the stop surface 23, this pedestal 31 protrudes out the insertion wall 32 that forms a longitudinal extension in the side near bottom surface 25, this insertion wall 32 has the lower surface 321 of

close bottom surface

25 and 25 the upper surface 322 back to the bottom surface, this lower surface 321 that inserts wall 32 is vertical with the stop surface 23 of drawing section 2, upper surface 322 upwards protrudes out the rib 33 of the horizontal expansion that forms some equidistant arrangements, these ribs 33 originate in pedestal 31, its bearing of trend is vertical with stop surface 23, and the height of rib 33 dwindles gradually from the middle part forward end.

In addition, because drawing section 2 differs bigger with the thickness of insertion section 3, cover 100 and cause because of variable thickness when the moulding for preventing to draw, cause thicker drawing section 2 generation shrinkage phenomenons, the absorption face of influence 22 smooth offers two grooves of vertically arranging 221 on absorption face 22.Middle part because of absorption face 22 is the adsorption plane of the material sucking mouth (not shown) of SMT machine again, simultaneously gas leakage causes suction force to reduce in order to prevent to draw, between two grooves 221, should reserve a certain size smooth plane domain, that is adsorption plane 222, draw for material sucking mouth.

See also Fig. 3 to Fig. 6, the both sides, top that are used for surface-pasted electric connector 4 respectively are provided with a flange 41, thus cover the slot to make way 211 that 100 the corresponding formation in both ends of the surface 21 places cooperates with it drawing, to avoid mutual interference.Because the direction of insertion of the insertion groove 42 of electric connector 4 and electric connector 4 are mounted between the bottom surface 44 on the printed circuit board (PCB) (not shown) and have a certain degree, for guaranteeing that electric connector 4 is when mounting, the face that the material sucking mouth of SMT machine is drawn, it is adsorption plane 222, parallel with the bottom surface 44 that electric connector 4 is mounted on the printed circuit board (PCB), the absorption face 22 of drawing section 2 also is designed to one and above-mentioned angle angle same with the lower surface 321 that inserts wall 32, making absorption cover 100 is inserted into after the electric connector 4, absorption face 22 is parallel with the bottom surface 44 of electric connector 4, and promptly adsorption plane 222 is parallel with this bottom surface 44.The thickness of the insertion wall 32 of insertion section 3 less than in the insertion groove 42 of electric connector 4 and the inner surface of installing terminal 43 in opposite directions another inner surface 421 and the distance between the contact jaw of terminal 43, in order to avoid interfere with terminal 43; The thickness that the thickness of insertion section 3 promptly inserts wall 32 adds that the height of rib 33 then is slightly larger than the width of insertion groove 42.Being installed in the rib 33 that inserts on the wall 32 has two effects, and the one, owing to insert the thinner thickness of wall 32, rib 33 can strengthen inserting the intensity of wall 32, prevents to draw cover 100 and be out of shape; The 2nd, can utilize rib 33 to replace the inner surface of installing terminal 43 in the insertion groove 42 during assembling, increase to draw and cover 100 interference after assembling with electric connector 4, make draw cover 100 with electric connector 4 between can produce enough frictional force, prevent that high speed from mounting in the process electric connector 4 and covering 100 with absorption and separate.When rib 33 enters into the insertion groove 42 of electric connector 4, the lower surface 321 that inserts wall 32 pastes mutually with the inner surface 421 of insertion groove 42, rib 33 is in the position between two adjacent terminals of electric connector 4, for avoiding interfering with terminal 43, the thickness of rib 33 is less than the gap width between two of the electric connector 4 adjacent terminals.When rib 33 all entered into insertion groove 42, the stop surface 23 of drawing section 2 was replaced at the top of electric connector 4, relied on the frictional force that produces between insertion section 3 and the electric connector 4, and absorption is covered 100 and is fixed on the electric connector 4.

When mounting, to draw earlier and cover 100 and be inserted in the electric connector 4, the material sucking mouth of SMT machine is being inhaled adsorption plane 222 places that drawing on 100 the absorption face 22 of covering under the effect of vacuum pressure, covering 100 drive electric connectors 4 by absorption moves together, under the effect of material sucking mouth, electric connector 4 is mounted on predeterminated position on the printed circuit board (PCB).After the printed circuit board (PCB) welding finishes, absorption can be covered 100 and from electric connector 4, extract, continue to utilize, economize on resources, reduce cost.

As mentioned above, the insertion groove 42 of electric connector 4 because of there being opening, and the direction of insertion of insertion groove 42 and electric connector 4 are mounted between the bottom surface 44 on the printed circuit board (PCB) and have a certain degree, so can't directly utilize the SMT machine to mount automatically, can only operate with manual method, production efficiency is low.Draw by the utility model and cover 100 and make this electric connector 4 realize automated production, and absorption is covered 100 simple in structure, easy to make, can also recycle, when producing in enormous quantities, can improve production efficiency of products greatly, economize on resources and the time, reduce the cost of product.

Claims

1. draw lid for one kind, be assemblied on the electric connector, draw electric connector in order to assisted vacuum, comprise drawing section and insertion section, it is characterized in that: described drawing section longitudinal extension, comprise absorption face and stop surface, a smooth adsorption plane for the material sucking mouth absorption of SMT machine is arranged on described absorption face, the stop surface that is assemblied in the absorption lid in the respective electrical connector is replaced at the electric connector top, and described adsorption plane is parallel to electric connector and is mounted on bottom surface on the printed circuit board (PCB); Described insertion section is installed on the stop surface of drawing section, the insertion wall that comprises longitudinal extension, described insertion wall has a lower surface and the upper surface relative with lower surface, described upper surface is installed with the rib of some horizontal expansions, the thickness that inserts wall less than in the insertion groove of electric connector and the inner surface of installing terminal in opposite directions another inner surface and the distance between the contact jaw of terminal, the thickness that inserts wall adds that the height of rib then is slightly larger than the width of insertion groove, and the thickness of rib is less than the gap width between two of the electric connector adjacent terminals and lay respectively between the terminals of adjacent.

2. absorption lid according to claim 1, it is characterized in that: described drawing section has a roughly rectangular trapezoidal lateral cross section, vertical two ends, drawing section form roughly at right angles trapezoidal end face, both lateral sides forms the absorption face and the stop surface of the rectangle that roughly is longitudinal extension respectively, wherein draw hypotenuse one side and right-angle side one side that face and stop surface lay respectively at described end face, two ends form the end face and the bottom surface of longitudinal extension respectively about the described drawing section, and wherein the transverse width of bottom surface is greater than end face.

3. absorption lid according to claim 2, it is characterized in that: the bottom of the both ends of the surface of described drawing section also respectively is provided with a slot to make way, and this slot to make way runs through the bottom surface and the stop surface of described drawing section, is used to hold the flange of both sides, respective electrical connector top.

4. absorption lid according to claim 1, it is characterized in that: the lower surface of described insertion wall is vertical with the stop surface of drawing section.

5. absorption lid according to claim 4, it is characterized in that: described insertion section has the pedestal that is positioned at longitudinal extension on the stop surface, and a side of described pedestal protrudes out and forms described insertion wall, and described rib originates in pedestal.

6. absorption lid according to claim 1, it is characterized in that: the bearing of trend of described rib is vertical with stop surface, and the height of rib dwindles gradually from the middle part forward end.