CN201523089U - Miniature coaxial connector - Google Patents

Abstract

The utility model provides a miniature coaxial connector comprising a signal terminal, an insulator, a first grounding element and a second grounding element with mutually perpendicular and separated conductors, wherein the signal terminal takes the shape of a long, narrow and flat arm, the signal terminal is provided with a welded back end 3A and a welded front end 3B, the front end extends upwards and forms two duck tongue-shaped connecting arms which is contacted with two PCB mother-bases, and two tongue-shaped pressing winding arms 3B 11 and 3B 12. A 'stair-shaped' limiting space and a clamping mother-base signal terminal are formed between the two arms. The back end 3A consists of an upper piece of plane bar 3A 11 and a lower piece of plane bar 3A 12 which are provided with semi-circle inner grooves respectively, and the diameter of the inner groove is the same as the diameter of a coaxial central conductor. The miniature coaxial connector is applicable to the high frequency signal transmission such as a message terminal machine and a computer.

Description

A kind of mini-coax connector

Technical field

The utility model relates to makes end formula cable technology field, particularly a kind of a kind of mini-coax connector that is used for the wireless communication terminal machine.

Background technology

The disclosed microminiature coaxial connector of I-PEX house journal technology that industry is known comprises center terminal, insulator and the conductor that is the tongue piece formula; Main center conductor and the integrated crimping mode of terminal that adopts coaxial line; Its center terminal shape as shown in Figure 1, center conductor is being positioned at terminal lower flat position, upper end stuck point and the salient point of front portion, lower end block center conductor that it is contacted are fixing.

Conductor has one-body molded compacting and connects with vertical joint face and be in vertical 90 ℃ level, vertical conductor, and coaxial line is also needing the vertical conductor both sides to be provided with preceding curved boom, middle curved boom and back curved boom in regular turn in crimping.

Though microminiature coaxial connector in sum can reach the performance of coaxial connector, structurally still there is following shortcoming in it:

1, adopts this terminal structure crimping, make easily and deposit terminal crimping face the coaxial line center conductor is fractureed; And the bending contact-making surface 1E of terminal and center conductor is very little, and fixed effect is limited, is difficult to make terminal to reinforce.

When 2, implementing, its signal terminal adopts welding manner with being connected of coaxial line, but welding is easy to generate phenomenons such as rosin joint or scruff, fails to understand residual substance, will cause the product electrical characteristic bad, and manually weld mode consumption consuming time worker, and production capacity can not mass;

3, whole conductor part, glue core, terminal and coaxial line integrated molding, on technology, need the action of bending 90, promptly need the higher board of precision, tool, could finish moving accurately bending, and the fraction defective that influences product will greatly rise, and then increase the volume production cost, also influence production capacity.

Summary of the invention

The utility model purpose is the shortcoming that overcomes prior art, and the mini-coax connector of a kind of novel structure, raising product yield, stay in grade is provided.

Mini-coax connector of the present utility model, signal terminal are that signal terminal is the long-armed type of long and narrow flat condition, its front end extend upward form two contact with PCB (circuit board) plate base be the tongue-shaped contact arm of duck and two tongue-shaped folded arms; Form " trapezoidal " restriceted envelope and folder female seat center contact pin end between two arms; The signal terminal rear portion is that two connections are bent into 30 °, in the middle of the sheet semicircle emboss pit is arranged all up and down, and the groove size encases the coaxial line center conductor just.

The whole shape of insulator is " cover " structure, and cover is made by the electrical property insulating material, and it is cylindrical circular cover protuberance, and vertically is provided with compressing tablet in the front portion, and its effect is to form upper and lower connection and insert center clearance for signal terminal two contact arms provide; The insulator rear portion is arranged with the storing district of inserting and insulating as signal terminal and first and second grounded parts 5,6 for the folded arm of pressing coaxial line after the bending;

First grounded parts is folder and covers shape, its surface be provided be convenient to assemble make part fixedly set in the strip pillar of restriceted envelope;

Second grounded parts is cylindrical, and its middle part forms provides terminal to connect the restriceted envelope of place's two arms, and its two arm forms the suitable chucking power of a pair of dependence with coaxial cable in both sides;

In assembling is implemented, at first, prepare signal terminal through the band edge strip of punch process, on spool, the coaxial line center conductor that signal terminal is handled through tool with last tin is crimped on the signal terminal of this subsidiary rim charge by cylinder shape ground;

Then, the plastic body that preparation utilizes injection molding to be shaped, such shown among Fig. 34, the a pair of forearm of the signal terminal of the band line of crimping moulding is positioned in the corresponding plastic body inside groove, preparation have by signal terminal a pair of before bent over arms form a kind of confining force, simultaneously, the conductor of coaxial line is inserted the signal terminal inside groove just, relatively all is in fixing state in horizontal level.

Again, to have vertical compressing tablet, the integral body that is crimped with signal terminal is put into first grounded parts of shell conductor, the shell conductor is placed on the unshowned assembling position of figure, the front end circular enclosure of plastic body can be inserted the nose circle tubular of first parts just, existing integral body is in state as shown in Figure 6, pre-fold 90 ° with the crimping tool again, and tighten up second grounded parts before, in, the bending crimping of back curved boom, forearm clamping first grounded parts of second grounded parts, before second grounded parts, in, the forearm that clamps first grounded parts respectively of back curved boom, the crust of coaxial line, the screen of coaxial line, thereby to clamp coaxial line.

A kind of mini-coax connector comprises first and second grounded parts of signal terminal, insulator, the mutual vertical separation formula of conductor; Signal terminal is the long-armed type of long and narrow flat condition, and signal terminal is provided with welding rear end 3A and connects the 3B of front end place, its front end extend upward form two contact with the pcb board female seat be the tongue-shaped contact arm of duck and two tongue-shaped folded arm 3B11,3B12; Form " trapezoidal " restriceted envelope and folder female seat signal port between two arms; Its rear end 3A is for to be made up of two planar strip that have the semicircle inside groove of upper and lower 3A11,3A12, and wherein the diameter of semicircle inside groove is identical with the center conductor diameter size of coaxial line.

Beneficial effect

As adopt above-mentioned structure, the utility model coaxial connector has following characteristic superiority:

1, the semicircle of the sheet up and down emboss pit of signal terminal rear end encases the coaxial line center conductor, and fully contacts with the circular central conductor; And two arms that front end extends upward formation remain in the plastic body, are easy to fix; Can avoid single two contact points of conventional flow to block crimping and produce loosening, the terminal card is disconnected etc. causes influencing the defective of product quality and then more abundant assurance product electrically conducting characteristic.

2, the possibility on the industry; Adopt shell conductor and terminal part crimping operating type, product structure adopts the form that takes all of; On processing procedure, avoid because of many human factors produce to influence product bad, all adopt the high accuracy tool, the pinpoint action of work simplification integrated molding guarantees that accurately crimping puts in place, improves the first-pass yield of product.

The above coaxial line of the joint design of Shuo Ming coaxial connector and its coupling is applicable to the application scenario such as the e-machines such as information terminal machine, computer correlation machine of high-frequency signal transmission.

Description of drawings

Fig. 1 is mini-coax connector construction profile commonly used;

Fig. 2 is the utility model mini-coax connector construction schematic isometric;

Fig. 3 is the utility model mini-coax connector decomposition texture schematic diagram;

Fig. 4 is the structure for amplifying schematic diagram of Fig. 3 mini-coax connector a;

Fig. 5 is the structure for amplifying schematic diagram of Fig. 3 mini-coax connector c;

Fig. 6 is a view before the utility model mini-coax connector pre-folds 90 °.

Embodiment

The mini-coax connector construction profile commonly used of Fig. 1

As shown in Figure 1, the coaxial cable that is used for e-machines such as wireless information terminal, play central part from outer circumferential side and have crust 1A, shielded conductor 1B, insulating barrier 1C, center conductor 1D successively, the shielded conductor that is designed to earthing potential is positioned at conveying, accepts the formation on every side of the center conductor of data-signal.Therefore, usually the end of coaxial cable is made as connector, makes the data side and the ground connection side that center conductor and shielded conductor simply can be connected electric substrate.

When the end with coaxial cable was designed to connector, center conductor center conductor, shield were cut off and expose respectively; Then the center conductor of coaxial cable is connected on the signal terminal wire connecting portion of circle of connector and welds.

As shown in Figure 2, mini-coax connector of the present utility model comprises signal terminal, shell conductor and first grounded parts, second grounded parts.

Shell conductor second grounded parts 6 is formed in one to suppress and forms, connect first grounded parts 5 with vertical joint face, and be in vertical 90 °, second grounded parts 6 is vertical joint face, form the back side of connector plug after the moulding, its vertical plane both sides are provided with compressing tablet 5A1, preceding curved boom 5A, middle curved boom 5B and back curved boom one 5C, back curved boom two 5D in regular turn, mainly be to go into set for first grounded parts space is provided between the curved boom before two, have two grooves because of the diel reason on the joint face between two arms; Curved boom clampings before first parts fixing not only relies on two, and curved boom is fixed front end two arms of first parts just in two are pressed in above it and form certain confining force; Two back curved booms one form has maintenance, and the gesture of crimping a pair of peeled the ground floor crust off when coaxial line, enters second layer screen, and the crust length of peeling off equates with the horizontal length of back curved boom one, thus its firmly crimping live the coaxial line screen; The second lucky crimping coaxial line crust of back curved boom.

Fig. 3 is the utility model mini-coax connector decomposition texture schematic diagram

As shown in the figure, a is the grounded parts oblique view of mini-coax connector;

B is the insulator oblique view of mini-coax connector;

C is the signal terminal oblique view of mini-coax connector;

Mini-coax connector of the present utility model comprises that first and second grounded parts 5,6 of signal terminal 3 (figure c), insulator 4 (figure b), the mutual vertical separation formula of conductor (is schemed a); Signal terminal 3 is the long-armed type of long and narrow flat condition, and signal terminal 3 is provided with welding rear end 3A and connects the 3B of front end place, its front end extend upward form two contact with the pcb board female seat be the tongue-shaped contact arm of duck and two tongue-shaped folded arm 3B11,3B12; Form " trapezoidal " restriceted envelope and folder female seat signal port between two arms; Its rear end 3A is for to be made up of two planar strip that have the semicircle inside groove of upper and lower 3A11,3A12, wherein the diameter of semicircle inside groove is identical with the center conductor diameter size of coaxial line, work in-process, the coaxial line center conductor is put into down in the groove of sheet 3A12, the body weld be 3A11 down, with last slice 3A11 tongue fixed center conductor; Sheet 3A11,3A12 are bent into 30 ° of connections up and down.

Insulator 4 whole shapes are " cover " structure, cover is made by the electrical property insulating material, it is cylindrical circular cover protuberance 4A, and vertically is provided with compressing tablet 4B (Fig. 2) in the front portion, and its effect is to form upper and lower connection and insert center clearance for signal terminal two contact arms provide; The insulator rear portion is arranged with the storing district of inserting and insulating as signal terminal and first and second grounded parts 5,6 for the folded arm of pressing coaxial line after the bending;

First grounded parts 5 is folder and covers shape, its surface be provided be convenient to assemble make part fixedly set in the strip pillar of restriceted envelope.

Second grounded parts 6 is cylindrical, and its middle part forms provides terminal to connect the restriceted envelope of place's two arms, and its two arm 3B forms the suitable chucking power structure of a pair of dependence with coaxial cable in both sides.

In said structure, the size that limits inserting port between 3 liang of arm 3B of signal terminal only just can be blocked female seat center hub on the pcb board; Signal terminal 3 rear end half slot sizes can be placed the center conductor of coaxial line just so as to cramping fixing coaxial line.

Coaxial line front end center conductor is placed under signal terminal 3 rear ends in the sheet groove 3A12, the center conductor place adds above soldering and connects, signal terminal 3 after will having welded is again inserted in the seat hole 4A of insulator with coaxial line, then insulator is inserted in the seat groove 6A of horizontal conductor of conductor again.After above-mentioned steps assembling is finished, use accurate tool will be vertical 90 vertical conductor towards horizontal conductor bending gland, at last the preceding curved boom of vertical conductor both sides, middle curved boom and back curved boom are crimped on horizontal conductor and the coaxial line one by one.

Insulator 4 is made by the material that is electrically insulated, and makes the isolated insulation between signal terminal and first and second grounded parts.Insulator 4 is provided with a hole 4A, and is provided with the compressing tablet 4B that is compressed by signal terminal front end two projections in its front end.

Fig. 4 is the structure for amplifying schematic diagram of Fig. 3 mini-coax connector a

Represent among the figure that first and second grounded parts of mini-coax connector is connected the form that adopts two semicircle clip fixing coaxial lines with coaxial line.

Fig. 5 is the structure for amplifying schematic diagram of Fig. 3 mini-coax connector c

Represent among the figure that two tongue-shaped folded arms of mini-coax connector signal terminal and upper and lower two have the semicircle inside groove.

Fig. 6 is a view before the utility model mini-coax connector pre-folds 90 °

Among the figure, the crust 1A of coaxial cable, shielded conductor 1B, insulating barrier 1C, center conductor 1D.The end of coaxial cable is made as connector, center conductor and shielded conductor is connected the data side and the ground connection side of electric substrate.

Represent mini-coax connector and form after coaxial line is connected among the figure.

Summary, coaxial line is connected with joint connector, be connected through confining forces such as terminal and center conductor, back curved boom one and screen, back curved boom two and crusts, coaxial line, terminal can well, firmly be connected conducting with the joint three, the utility model adopts this crimping mode can avoid causing influencing the product quality defective because of produce not clear residual substances such as scruff with welding, thereby guarantees that cake effectively improves the product electrical characteristic; Be first and second earth element that separate type designs by two, the machine of instructions for use autonomous Design, tool are done the action of accurate 90 ° of bendings location, thereby improve the first-pass yield of product. not only reduce cost, improve production capacity, rational in infrastructure but also effectively improve the purpose that product process rate, stay in grade reach the design.

Claims (10)

1. mini-coax connector comprises first and second grounded parts (5,6) of signal terminal (3), insulator (4), the mutual vertical separation formula of conductor; It is characterized in that, signal terminal (3) is the long-armed type of long and narrow flat condition, signal terminal (3) is provided with welding rear end 3A and connects the 3B of front end place, its front end extend upward form two contact with the pcb board female seat be the tongue-shaped contact arm of duck and two tongue-shaped folded arm 3B11,3B12; Form " trapezoidal " restriceted envelope and folder female seat signal port between two arms; Its rear end 3A is for to be made up of two planar strip that have the semicircle inside groove of upper and lower 3A11,3A12, and wherein the diameter of semicircle inside groove is identical with the center conductor diameter size of coaxial line.

2. mini-coax connector according to claim 1, it is characterized in that described upper and lower 3A11,3A12 form the planar strip of semicircle inner groovy, the coaxial line center conductor is put into down in the groove of sheet 3A12, the body weld down, with last slice 3A11 tongue fixed center conductor; Upper and lower 3A11,3A12 are bent into 30 ° of connections.

3. mini-coax connector according to claim 1, it is characterized in that the whole shape of described insulator (4) is " cover " structure, it is cylindrical circular cover protuberance 4A, and vertically be provided with compressing tablet 4B in the front portion, form upper and lower connection and insert center clearance for signal terminal two contact arms provide; The insulator rear portion is arranged with the storing district of inserting and insulating as signal terminal and first and second grounded parts (5,6) for the folded arm of pressing coaxial line after the bending.

4. mini-coax connector according to claim 1 is characterized in that, described first grounded parts (5) is folder and covers shape, the surface be provided be convenient to assemble make part fixedly set in the strip pillar of restriceted envelope.

5. mini-coax connector according to claim 1, it is characterized in that, described second grounded parts (6) is cylindrical, and its middle part forms provides terminal to connect the restriceted envelope of place's two arms, and its two arm 3B forms the suitable clamp structure of a pair of dependence with coaxial cable in both sides.

6. mini-coax connector according to claim 1 is characterized in that, the size that limits inserting port between described signal terminal (3) the two arm 3B only just can be blocked female seat center hub on the pcb board; Signal terminal (3) rear end half slot size can be placed the center conductor of coaxial line just so as to cramping fixing coaxial line.

7. mini-coax connector according to claim 1, it is characterized in that, described coaxial line front end center conductor is placed under signal terminal (3) rear end in the sheet groove 3A12, the soldering of center conductor place connects, signal terminal after having welded (3) and coaxial line are inserted in the seat hole 4A of insulator, and insulator is inserted in the seat groove 3B of horizontal conductor of conductor.

8. according to claim 1 or 3 described mini-coax connectors, it is characterized in that described insulator (4) is made by the material that is electrically insulated, insulator (4) is provided with a hole 4A, and is provided with the compressing tablet 4B that is compressed by signal terminal front end two projections in its front end.

9. mini-coax connector according to claim 1, it is characterized in that, described second grounded parts (6) is formed in one to suppress and forms, connect first grounded parts (5) with vertical joint face, and being in vertical 90 °, second grounded parts (6) vertical conductor both sides are provided with preceding curved boom 5A, middle curved boom 5B and back curved boom one 5C, back curved boom two 5D in regular turn.

10. according to claim 1 or 9 described mini-coax connectors, it is characterized in that, described coaxial line is connected to coaxial connector, described curved boom 5A, middle curved boom 5B and back curved boom one 5C, back curved boom two 5D, mainly be to go into set for first grounded parts space is provided between the curved boom before two, have two grooves because of the diel reason on the joint face between two arms.

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