CN2717060Y

CN2717060Y - A connector

Info

Publication number: CN2717060Y
Application number: CNU2004200515620U
Authority: CN
Inventors: 李健
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2004-05-10
Filing date: 2004-05-10
Publication date: 2005-08-10
Anticipated expiration: 2014-05-10

Abstract

The utility model provides a connector, successively comprises an interface (11), a base (12), a pin (13) and a contact pin (14) positioned in the center of the base (12), wherein, the length of the pin (13) satisfies that the length is either smaller than or equal to 2.0mm. The utility model has the advantages of the increasing production efficiency, reducing production costs, and improving electricity quality.

Description

A kind of connector

Technical field

The utility model relates to the plant equipment of electronics or communication field, relates in particular to a kind of connector.

Background technology

Be production and the assembling of finishing electronic product, the current circuit assembly technology that two kinds of main flows are arranged: surface mounting technology (Surface Mounting Technology, SMT) and Through-Hole Technology (Through-Hole Technology, THT).When surface mounting technology carried out electronic product production and assembling, element directly subsides was welded in substrate surface and does not need to pass through hole; And utilize Through-Hole Technology to carry out electronic product production and when assembling, and substrate surface need be provided with through hole, and element passes through hole and welds with substrate.

The advantage of THT technology is: radiating treatment and technology controlling and process are easier to; The solder joint visual inspection is easy; The power of device is bigger.

But owing to reasons such as the components and parts that adopt, production equipment, checkout equipment, auxiliary material, also there are the following problems for THT: microminiaturization is difficulty relatively, and the size and the weight of product are bigger; Because main the employing by hand or the semi-automatic mode of production is so efficient is lower; The cost of components and parts encapsulation descends slower; Parasitic capacitance, the inductance of device pin are bigger, are unfavorable for the transmission of high-frequency signal.

The SMT technology can overcome the problem that exists in the THT technology, and its advantage is: product size and weight little, be particularly suitable for portable equipment, mobile device product; Signal path is short, and better signal rate and frequency characteristic are provided; Product reliability is higher.

For realizing the SMT technology, must use components and parts SMD (Surface Mount Device), described SMD device is compared with similar plug-in mounting device, and following advantage is arranged: the raw material of employing still less, under the batch process situation, cost per unit is lower; The production efficiency height has had ripe equipment can carry out full automatic production, detection, and production cost continues to reduce; Overall dimension has good electrical quality less than traditional plug-in mounting device on high-frequency signal, can overcome the excessive signal cross-talk that brings of device overall dimension (mainly being pin size) greatly; Simultaneously because the pin characteristics of SMD device, do not need to resemble Through-Hole Component (Through-Hole Device, THD) the same as printed circuit board (PCB) (Printed Circuit Board, PCB) going up the making through hole welds, therefore can save a large amount of PCB layout spaces, shorten the length of signal circuit passage, improve signal quality (particularly high-frequency signal), reduce the PCB area and the number of plies, reduce PCB and make and material cost.

Because have above advantage with the SMT technology, and the development trend of electronic product is: the integrated level height of miniaturization, radiofrequency signal speed and components and parts, so the SMD device is used also more and more widely on electronic product, ratio is also more and more higher.

Now, along with the popularization of SMT technology, the particularly development of components and parts manufacturing technology, circuit assembly manufacturing technology, electronic devices and components detection technique, integrated circuit class device such as separation device such as resistance, electric capacity and integrated circuit has been realized surface mountization.But widely used mini-coax connector is not but still realized surface mountization on the radio frequency Related product, is still the mini-coax connector of cartridge-type, and there is following shortcoming in the connector of this cartridge-type:

At first, because in the manufacturing process of electronic product, except that normal SMT manufacturing process, also wave-soldering must be increased or the manual welding operation is welded, so increased production cost;

Secondly, because the manual plug-in mounting of main employing, so automaticity is low, production efficiency is low and the product quality consistency is poor;

At last, because pin is longer, parasitic capacitance, inductance are bigger, and signal cross-talk is serious, so be subjected to more restriction in the product that the high-frequency signal quality is had higher requirements.

Technology contents

The utility model provides a kind of connector, to solve the low problem of packaging efficiency that the connector that uses in the prior art exists because of not utilizing the SMT technology to assemble.

For addressing the above problem, the utility model provides following technical scheme:

A kind of connector comprises successively interface (11), pedestal (12) and a plurality of pin (13) that connects and is positioned at the contact pin (14) at pedestal (12) center that wherein, the length of described pin (13) is less than or equal to 2.0mm.

Described pin (13) can be 2 or 4.

Described contact pin (14) is with respect to contracting in the pin (13).

Described connector is the connector of SMA, SMB, SSMB or MCX model.

Described pin (13) be shaped as cuboid, cylinder, cone or step shape.

The utility model can reach following technique effect:

At first, cost is low, the height of surface mount mini-coax interface unit is little, is example with the MCX of same interface standard, and the height of device can reduce more than 30%, significantly reduce the spillage of material in the device fabrication process, save product cost, and, compare with the mini-coax connector of cartridge-type, the utility model needn't increase wave-soldering or the manual welding operation is welded, and has therefore also saved production cost.

Secondly, the production efficiency height, surface mount mini-coax interface unit has reduced manufacturing process, and the automaticity height, and processing technology control is easily.

At last, electrical quality is good, and pin size is little, and not be used on the printed circuit board (PCB) and to make through hole and weld, and saves a large amount of PCB layout spaces, shortens the length of signal circuit passage, raising signal quality (particularly high-frequency signal).

Description of drawings

Fig. 1 is a prior art connector construction schematic diagram;

Fig. 2 is the utility model connector construction schematic diagram;

Fig. 3 is the utility model connector design one;

Fig. 4 is the utility model connector design two;

Fig. 5 is the schematic diagram that contracts in the utility model connector pinout

Fig. 6 is the utility model connector design three;

Fig. 7 is the utility model connector design four;

Fig. 8 is the utility model connector design five.

Embodiment

Core concept of the present utility model is: the structure to cartridge-type connector of the prior art is improved, make the connector after the improvement can be applicable to the SMT technology, to reduce cost, automaticity and efficient when improving the connector assembling, also improved simultaneously the consistency of product quality, promptly the utility model is modified into the surface attaching type connector by architecture advances with cartridge-type connector of the prior art.Below in conjunction with accompanying drawing, connector of the present utility model is described in detail:

Please refer to Fig. 1, the plug-in mounting mini-coax connector pinout and the contact pin length of prior art are bigger, are example with MCX, and the length of its pin is generally about 4mm～4.5mm.In conjunction with Fig. 2 as can be seen, connector of the present utility model comprises: the interface 11 of Lian Jieing, pedestal 12 and pin 13 successively are positioned at the contact pin 14 at pedestal 12 centers, wherein, pin 13 length of the utility model connector have had tangible shortening, the satisfied 2.0mm that is less than or equal to of the length of pin 13.In the middle of the specific implementation process, can according to circumstances adopt 2.0mm or 1.5mm or pin length such as 1.0mm or 0.5mm, the variation of this pin configuration can be so that connector can be applicable to the SMT technology, the SMT specification requirement: the device center of gravity is low, otherwise in surface mount process, as mounting automatically in device, the automatic transport process of guide rail, weld defect such as device is prone to and rocks, off normal, device are toppled over, open circuit.Mini-coax connector with common MCX model is an example, the plug-in mounting coaxial connector whole height of this model is generally about 9.3-9.5mm, the maximum length and width in the cross section of device are 6mm * 6mm, this device has formed length: highly=and 1: 1.5 ratio, the center of gravity height is easy to the situation that off normal occurs and topple over.Thereby making the center of gravity of mini-coax connector reduce greatly by the utility model to the improvement of pin can apply to the SMT technology and produce following effect: at first, reduce the spillage of material in the device fabrication process, MCX with same interface standard is an example, the height of device can reduce more than 30%, saves product cost; Secondly, reduced device fabrication, and the automaticity height, processing technology control is easily; At last, electrical quality is good, and pin size is little, and not be used on the printed circuit board (PCB) and to make through hole and weld, and saves a large amount of PCB layout spaces, shortens the length of signal circuit passage, raising signal quality (particularly high-frequency signal).

The number of pin 13 can be 2 or more a plurality of, such as 2, as shown in Figure 3, again such as 4, as shown in Figure 4, but in the implementation process of reality, is not limited to above cited number, can be provided with as required.

In order further to optimize surface mount mini-coax connector, the contact pin 14 in the utility model connector can be referring to Fig. 5 with respect to contracting in the pin.By making connection device of the present utility model that following advantage is arranged: at first with contracting in the contact pin 14, but improve the processing characteristics of device in the surface mount welding is produced, adopt this optimal design, can be compatible because the device distortion that welding high temperature causes thoroughly solves a large amount of weld defect problems; Secondly, have the overall dimension of utilizing device to detect, particularly coplane degree detects, and enhances productivity and the accuracy of quality control.

In conjunction with Fig. 2 and Fig. 6 and Fig. 7 and Fig. 8, pin 13 shapes of the utility model connector can adopt cuboid as can be seen, as shown in Figure 2, perhaps cone, as shown in Figure 6, perhaps cylinder, as shown in Figure 7, perhaps adopt the pin of step shape, as shown in Figure 8, but be not limited to the above shape of enumerating, can adopt the geometry of various regulations.

Connector described in the utility model is in concrete the application, mainly include, but are not limited to following model: SMA or SMB or SSMB or MCX model, wherein model SMA, SMB, SSMB, MCX are that SMA represents IEC60169-15 according to the definition of standard MIL-C-39012; SMB represents IEC60169-10; SSMB represents IEC60169-19; MCX represents IEC60169-36, and CECC 22220.

By technique scheme, the utility model can reach following technique effect:

Claims

1, a kind of connector comprises successively interface (11), pedestal (12) and a plurality of pin (13) that connects and is positioned at the contact pin (14) at pedestal (12) center that it is characterized in that: the length of pin (13) is less than or equal to 2.0mm.

2, connector as claimed in claim 1 is characterized in that, pin (13) is 2 or 4.

3, connector as claimed in claim 2 is characterized in that, contact pin (14) is with respect to contracting in the pin (13).

4, connector as claimed in claim 3 is characterized in that, described connector is the connector of SMA, SMB, SSMB or MCX model.

5, connector as claimed in claim 3 is characterized in that, pin (13) be shaped as cuboid, cylinder, cone or step shape.