CN201656018U

CN201656018U - USB interface structure

Info

Publication number: CN201656018U
Application number: CN2009202979548U
Authority: CN
Inventors: 李小芳
Original assignee: Dongguan City Licheng Wire & Cable
Current assignee: Dongguan City Licheng Wire & Cable
Priority date: 2009-12-30
Filing date: 2009-12-30
Publication date: 2010-11-24
Anticipated expiration: 2019-12-30

Abstract

The utility model discloses a USB interface structure, which comprises an insulating rubber core. A metal shell is sleeved outside the front part of the rubber core, the tail part of the rubber core is connected with a rear cover, five strip pins longitudinally extended and transversely arranged in order are arranged in the rubber core, and in the pins, the tail end of the third pin extended out of the tail part of the rubber core is short connected with the tail end of the second pin extended out of the tail part of the rubber core in the rear cover. The interface structure does not need to weld extra short connected leads so as to reduce the production and manufacture processes, improve the production efficiency and reduce the production and manufacture costs; and the service performance of a connector can be improved, and the service life of the USB interface structure is prolonged.

Description

A kind of USB interface structure

Technical field

The utility model relates to USB (USB, Universal Serial BUS), particularly a kind of micro USB (MicroUSB) interface structure that need not to adopt lead to connect and directly use the short-circuit of terminals.

Background technology

As everyone knows, electronic equipments such as mobile phone, PDA, digital camera, Digital Video, portable digital player, game machine, global positioning system all are provided with the connector at the equipment interface place that is used for transfer of data and charging, i.e. USB interface.As shown in Figure 1, USB interface structure commonly used comprises in the prior art: a bonnet 11 that is used to isolate each pin (pin), a metal shell 18, two connected metal shells play the grab 12 of kayser effect jointly, an insulating cement core 17 that is set in described metal shell 18 inside and is connected with described bonnet 11, and the number of pins that is arranged at described glue core 17 inside, as the 5th pin 13 shown in from left to right among Fig. 1, the 4th pin 16, the 3rd pin 15, second pin 14 and the 5th pin 13, wherein two the 5th pin 13 structures are identical and be arranged at the 4th pin 16 and second pin, 14 outsides respectively.In the prior art, by lead 19 short circuit great-leap-forwards the 3rd pin 15, second pin 14, to reach the purpose of short circuit.And adopt this kind structure, in manufacture process, not only increased the welding sequence of one lead 19, cause the raising of manufacturing cost, and when welding lead 19, phenomenons such as two-end-point rosin joint, the solder joint of lead 19 be insecure also can appear, thereby do not reach the purpose of short circuit conducting, finally influence the quality of product.In addition, in USB uses, also can be stressed because of finished product, and cause welding lead 19 outer end insulators impaired and produce other functional effect, thus the function or the life-span of the electronic installation equipment of this connector are used in influence.

The utility model content

The utility model is in order to overcome defective in the above-mentioned prior art, a kind of lead connection, continuous USB interface structure that reaches the short circuit purpose of direct tail end by two pins of need not to be provided.

The utility model provides a kind of USB interface structure, comprise an insulating cement core, a sheathed metal shell outside the described glue core front portion, described glue core afterbody connects a bonnet, described glue in-core portion is provided with longitudinal extension and horizontal tactic five strip pins, and the 3rd pin tail end that is stretched out by described glue core afterbody in the described pin and the second pin tail end that is stretched out by described glue core afterbody are at described bonnet inside short circuit (being that short circuit is connected).

In the technique scheme, the longitudinal cross-section of described the 3rd pin tail end is Z-shaped structure, the longitudinal cross-section of the second pin tail end adjacent with described the 3rd pin is the anti-Z-shaped structure with described Z-shaped structure minute surface symmetry, so that described the 3rd pin tail and the second pin tail end short circuit.

In the technique scheme, be equipped with a plurality of clamping projectioies on described each pin sidewall, so that it closely is connected with described glue in-core portion.

In the technique scheme, described each pin head end is equipped with and the outside contact that is connected.

In the technique scheme, described glue outer core is provided with some draw-in grooves and/or stuck point, and be provided with card contact and the buckling groove that matches with described draw-in groove and/or stuck point on the corresponding position of described metal shell, so that described glue core closely is connected with described metal shell.

In the technique scheme, described glue in-core portion both sides are respectively equipped with grab, described grab stem extend out to outside the described metal shell by described glue core and with the described metal shell clamping that is connected.

In the technique scheme, described five pins are respectively the 5th pin, the 4th pin, the 3rd pin, second pin and the 5th pin from left to right, and wherein two the 5th pin configuration are identical and be arranged at the 4th pin and second pin outside respectively.

The utlity model has following beneficial effect:

Do not need lead to connect in the USB interface structure in the utility model, directly by with second pin and the 3rd pin tail end at the inner short circuit of bonnet, the structure of preferred two pins tail end be the longitudinal cross-section be Z-shaped structure and with the anti-Z-shaped structure of described Z-shaped structure minute surface symmetry, to reach the purpose of short circuit, can reduce manufacturing operation on the one hand, enhance productivity, reduce manufacturing cost, improve the serviceability of connector on the other hand greatly, prolonged the useful life of USB interface structure.

USB interface structure in the utility model is specially adapted to some electronic equipments that use micro USB (MicroUSB) interface, as electronic equipments such as mobile phone, PDA, digital camera, Digital Video, portable digital player, game machine, global positioning systems.

Description of drawings

Fig. 1 is the front elevational view of USB interface structure in the prior art;

Fig. 2 is the front elevational view of the utility model USB interface structure;

Fig. 3 is the stereo rearview of USB interface structure among Fig. 2;

Fig. 4 is the three-dimensional explosive view of USB interface structure among Fig. 2;

Fig. 5 is the front elevational view of USB interface structure insulating cement core among Fig. 2;

Fig. 6 is the stereo rearview of insulating cement core among Fig. 5;

Fig. 7 is second pin of USB interface structure among Fig. 2 and the stereo rearview of the 3rd pin;

Fig. 8 is the front elevational view behind second pin and the 3rd pin short circuit among Fig. 7;

Fig. 9 is the stereo rearview behind second pin and the 3rd pin short circuit among Fig. 8;

Figure 10 is the partial sectional view at second pin and the 3rd pin short circuit place among Fig. 2.

Mark the following drawings mark thereon in conjunction with the accompanying drawings:

In the accompanying drawing 1 of prior art correspondence: 11-bonnet, 12-grab, 13-the 5th pin, 14-second pin, 15-the 3rd pin, 16-the 4th pin, 17-glue core, 18-metal shell, 19-lead;

In the accompanying drawing 2 to 10 of the utility model correspondence: 21-bonnet, 22-grab, 23-the 5th pin, 231-the 5th pin contact chip, 232-the 5th pin clamping projection, 233-the 5th pin contacts, 24-second pin, the 241-second pin contact chip, the anti-Z-shaped structure of 242-second pin, 25-the 3rd pin, the Z-shaped structure of 252-the 3rd pin, 26-the 4th pin, 261-the 4th pin contact chip, 27-insulating cement core, 271-sidewall draw-in groove, 272-antetheca draw-in groove, 273-rear wall stuck point, 274-pin guide slot, 275-grab passage, 28-metal shell, 281-sidewall card contact, 282-antetheca card contact, 283-rear wall buckling groove.

Embodiment

Below in conjunction with accompanying drawing, an embodiment of the present utility model is described in detail, but is to be understood that protection range of the present utility model is not subjected to the restriction of embodiment.Should be noted that occur in the utility model about, orientation determiner such as head and the tail is reference with position shown in the accompanying drawing all, so that more clearly understand its structure, do not limit the protection range of technical solutions of the utility model.

USB interface structure shown in Fig. 1 to 4, what connect successively from the bottom to top is the bonnet 21 that is positioned at USB interface structure afterbody, insulating cement core 27 that afterbody is fixedlyed connected with described bonnet 21 and the metal shell 28 that is sheathed on described insulating cement core 27 stems.Described glue core 27 inside are provided with longitudinal extension and horizontal tactic five strip pins (are meant the strip pin that is arranged in the glue core pin guide slot herein, just draw the pin guide slot when hereinafter the glue core being described in detail, simultaneously original pin passage is replaced with the pin guide slot), be respectively equipped with grab 22 in described glue core 27 inner both sides, described grab 22 stems extend out to outside the described metal shell 28 by described glue core 27 and with the described metal shell clamping that is connected.Wherein, put in order identical with prior art, described five pins are respectively the 5th pin 23, the 4th pin 26, the 3rd pin 25, second pin 24 and the 5th pin 23 from left to right, and wherein two the 5th pin 23 structures are identical and be arranged at the 4th pin 26 and second pin, 24 outsides respectively.As shown in Figure 4, be equipped with a plurality of clamping projectioies on described each pin sidewall and (only indicate clamping projection 232 structures on the 5th pin 23 among Fig. 4, the clamping bulge-structure is identical with it on other each pins, so do not indicate) so that it is connected with described glue core 27 inner tight; Described each pin head end is equipped with the outside contact that is connected and (only indicates contact 233 structures on the 5th pin 23 among Fig. 4, other each pin upper contact structures are identical with it, so do not indicate), and the contact of each pin head end is stretched out by described glue core 27 head ends, to be connected with the external connection port parts; In addition, except that the 3rd pin 25, all the other each pin tail ends are equipped with and extend to the contact chip (five pin contact chip 231, four pin contact chip 261 and second pin contact chip 241) of described bonnet 21 outsides to be electrically connected with outside appurtenances.

Insulating cement core 27 structures as shown in Figs. 4-6, portion vertically offers five pin guide slots 274 arranging from left to right within it, is respectively applied for each pin is set; Be provided with the grab passage 275 parallel in pin guide slot 274 both sides, to fixedly install described two grabs 22 with described pin guide slot 274.On the outer wall of described glue core 27 left and right sides, offer two sidewall draw-in grooves 271 respectively, corresponding, be provided with the sidewall card contact 281 that cooperates clamping with described sidewall draw-in groove 271 in described metal shell 28 left and right sides; On described glue core 27 front side outer walls, also be provided with an antetheca draw-in groove 272, on metal shell 28 antethecas, also be provided with the antetheca card contact 282 that cooperates clamping with described antetheca draw-in groove 272 simultaneously; In addition, on described glue core 27 rear side outer walls, be provided with an outstanding rear wall stuck point 273, corresponding, on metal shell 28 rear walls, be provided with the rear wall buckling groove 283 that cooperates clamping with described rear wall stuck point 273.By draw-in groove/stuck point and the card contact/buckling groove that on described insulating cement core 27 and metal shell 28, cooperatively interacts, thereby guarantee that glue core 27 closely is connected with metal shell 28, make both more fastening, guarantee that USB interface structure serviceability and useful life are more excellent.

Compare with five pins of the prior art (pin), be positioned at two the 5th pins 23 of each pin outer fix in the present embodiment and cooperate the structure of the 4th adjacent pin 26 not have significant change with left side the 5th pin 23, innovative point in the utility model is the variation to second pin 24 that is positioned at each pin center and the 3rd pin 25 tail structures, thereby realizes that the USB interface overall structure does not need the purpose of outside short circuit lead.Next second pin 24 and the 3rd pin 25 as core texture in the USB interface structure in the present embodiment described in detail.

Second pin 24 shown in Fig. 7 to 10 and the structure of the 3rd pin 25, the longitudinal cross-section of described the 3rd pin 25 tail ends that stretched out by described glue core 27 afterbodys is Z-shaped structure 252, stretch out and the longitudinal cross-section of second pin 24 tail ends adjacent with described the 3rd pin 25 is anti-Z-shaped structure 242 with described Z-shaped structure 252 minute surface symmetries by described glue core 27 afterbodys, so that described the 3rd pin 25 and second pin 24 are when laying respectively in the glue core 27 inner pin guide slots 274, the relative Z-shaped structure 252 in both tail end places fits tightly short circuit (short circuit is connected) just with anti-Z-shaped structure 242 places, and both short circuit positions (as shown in figure 10) are positioned at described bonnet 21 inside, therefore only need take second pin, 24 tail ends (certainly, also can second pin and the result of the 3rd pin also interchangeable, corresponding the 3rd pin tail end is provided with the contact chip that extends to housing exterior) the second pin contact chip 241 extend to housing exterior and get final product.As seen, be positioned at the pin contact chip place that USB interface structure afterbody exposes in the present embodiment, need not the peripheral hardware short circuit and connect lead, thereby not only can save manufacturing process, and the insecure and unsettled defective of USB interface structural behaviour that occurs of lead tie point when avoiding using, improve USB interface structural behaviour stability greatly, effectively prolonged its useful life.

In the assembling present embodiment during USB interface structure, only need in the installation diagram 4 shown in the solid arrow direction, respectively each pin is inserted in the pin guide slot 274 in the glue core 27, two grabs 22 are inserted into respectively in the grab passage 275 in the glue core 27, bonnet 21, glue core 27 and metal shell 28 are being fixedly connected sequentially, can obtain final USB interface structure finished product, product design is simple for structure, and assembling flow path is simple.

More than disclosed only be a specific embodiment of the present utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into protection range of the present utility model.

Claims

1. USB interface structure, comprise an insulating cement core, a sheathed metal shell outside the described glue core front portion, described glue core afterbody connects a bonnet, described glue in-core portion is provided with longitudinal extension and horizontal tactic five strip pins, it is characterized in that: the 3rd pin tail end that is stretched out by described glue core afterbody in the described pin and the second pin tail end that is stretched out by described glue core afterbody are at the inner short circuit of described bonnet.

2. USB interface structure according to claim 1, it is characterized in that: the longitudinal cross-section of described the 3rd pin tail end is Z-shaped structure, the longitudinal cross-section of the second pin tail end adjacent with described the 3rd pin is the anti-Z-shaped structure with described Z-shaped structure minute surface symmetry, so that described the 3rd pin tail and the second pin tail end short circuit.

3. USB interface structure according to claim 2 is characterized in that: be equipped with a plurality of clamping projectioies on described each pin sidewall, so that it closely is connected with described glue in-core portion.

4. USB interface structure according to claim 2 is characterized in that: described each pin head end is equipped with and the outside contact that is connected.

5. according to any described USB interface structure of claim 1 to 4, it is characterized in that: described glue outer core is provided with some draw-in grooves and/or stuck point, and be provided with card contact and the buckling groove that matches with described draw-in groove and/or stuck point on the corresponding position of described metal shell, so that described glue core closely is connected with described metal shell.

6. according to any described USB interface structure of claim 1 to 4, it is characterized in that: described glue in-core portion both sides are respectively equipped with grab, described grab stem extend out to outside the described metal shell by described glue core and with the metal shell clamping that is connected.

7. according to any described USB interface structure of claim 1 to 4, it is characterized in that: described five pins are respectively the 5th pin, the 4th pin, the 3rd pin, second pin and the 5th pin from left to right, and wherein two the 5th pin configuration are identical and be arranged at the 4th pin and second pin outside respectively.