CN2641851Y - Connector for power supply - Google Patents

Abstract

The utility model provides a power source connector which can evenly joint with an even joint component to transmit current, and comprises an insulating casing, a central terminal and at least one auxiliary terminal. The insulating casing has a plurality of containing spaces which can contain the central terminal and the auxiliary terminal(s). The auxiliary terminal comprises a base section, at least one contacting section extending downwards from the base section, an installing section extending downwards from the base section. The auxiliary terminal is inserted into the insulating casing from the direction perpendicular to the jointing direction of the even joint component jointing, and is fixed in the insulating casing in the help of the installing section. The fixing ability of the insulting casing for the central terminal and the auxiliary terminal is improved, and instability of the central terminal and the auxiliary terminal resulted from the inserting force of the even joint component is reduced in the utility model, thus the stability of the current transmission is ensured, and the manufacturing process of the auxiliary terminal is simplified at the same time, resulting in advantages of simple structure, material saving and manufacturing cost saving.

Description

Power connector

Technical field

The utility model is about a kind of power connector, especially about a kind of connecting circuit plate and butt joint electronic component with the power connector of transmission current.

Background technology

Power connector is widely used in being used for transmitting direct current on the electronic product (as the cell-phone charging socket).The existing power supply connector generally includes a center terminal and at least one auxiliary terminal on every side.During use, center terminal docks with the both positive and negative polarity of abutment element respectively with an end of auxiliary terminal, and the other end then is crimped to circuit board, thereby plays the effect of transmission current, and therefore two kinds of terminals become element important in the power connector.For reducing the contact resistance of power connector, improve the stability of current path, the existing power supply connector adopts columniform center terminal directly to be bent to form a pressure contact portion with circuit board is connected with group, and the auxiliary terminal of sheet bends and is " L " shape and forms the mode that a pressure contact portion and circuit board are connected with group.

Correlation technique can be consulted Fig. 1, and power connector 5 comprises that mainly an insulation shell 6, a center terminal 7 and at least one auxiliary terminal 8 are contained in the insulation shell 6.Center terminal 7 comprises that but a columniform docking section 70, a winding are to the group connecting part 72 of circuit board and connect the connecting portion 71 of this docking section 70 and group connecting part 72.Docking section 70 terminal sides are provided with the interference part 701 of a pair of diagonal stabbing shape, and center terminal 7 is immobilizated in the insulation shell 6.70 extensions, one end is to have the arc sections 710 suitable with docking section 70 radians to connecting portion 71 from the docking section, and this arc sections 710 closely contacts with insulation shell 6 inwalls, utilizes interference effect between the two that center terminal 7 is retained in the insulation shell 6.Auxiliary terminal 8 is to be formed by sheet metal punching press bending, roughly is left square bracket shape.Terminal sidepiece 81 has the base portion 811 and the first long narrow contact site 812 from the extension of base portion 811 1 sides of a broad.This first contact site 812 can contact with abutment element (not shown), and its front end bends to the inside, to improve elasticity and to strengthen the effect that contacts with abutment element.Base portion 811 both sides are provided with some hangnails 830, base portion 811 can be retained in the insulation shell 6, prevent that first contact site 812 from moving the skew of generation.Auxiliary terminal bottom 82 is rectangle, it has been provided with some hangnails 830 of fixing effect equally by the both sides, rear portion, it then is provided with one near front center and extends to second contact site 820 in butt joint space (not label) to the back upper place, this second contact site 820 when power connector 5 docks with abutment element, oppressed by abutment element and with its tight contact.

Yet, center terminal 7 in the above-mentioned technology, the interference part 701 that its docking section 70 terminal sides are provided with, when abutment element is inserted, owing to the insertion force that is subjected to abutment element deforms, only rely on the arc sections suitable with docking section 70 radians 710 and the interference of insulation shell 6 inwalls that center terminal 7 is retained in the insulation shell 6 simultaneously, its effect also can weaken because of the effect repeatedly that is subjected to the abutment element contact engaging and separating force, and then influences the locating effect of center terminal 7.In addition, auxiliary terminal 8 roughly is left square bracket shape through after the bending process, has increased the use amount of metal material and the difficulty of processing, and insulation shell 6 also needs corresponding processing that a lot of accepting grooves (not label) are set, the mould structure complexity of feasible processing insulation shell 6, cost improves.Because auxiliary terminal 8 is to insert from the rear end face of insulation shell 6 to be contained in the insulation shell 6, therefore the rear end face at insulation shell 6 need be provided with a lot of openings, impurity such as dust just is easy to enter in the connector 5 by these openings like this, and then influences the current delivery quality.Simultaneously, because the installation direction of auxiliary terminal 8 is consistent with the direction of insertion of abutment element, therefore the problem same with center terminal 7 also can occur, that is: the effect repeatedly of abutment element contact engaging and separating force can influence the locating effect of auxiliary terminal 8, even the serious consequence that auxiliary terminal 8 is pushed out can occur.

Although the existing power supply connector has been taked certain corrective measure aspect terminal stable improving, but still there are a lot of defectives in comprehensive above the analysis, needs further to improve the structure of center terminal and auxiliary terminal, thereby guarantees the stability of current delivery.

Summary of the invention

Main purpose of the present utility model is to provide a kind of power connector, and it can dock the element butt joint with one, can effectively center terminal be retained in the insulation shell, improves the stability of current delivery.

Another purpose of the present utility model is to provide a kind of power connector, and it can dock the element butt joint with one, can effectively auxiliary terminal be retained in the insulation shell, improve the stability of current delivery, auxiliary terminal is simple in structure, easy to manufacture simultaneously, constant product quality.

For realizing aforementioned purpose, the technical scheme that the utility model foundation is following: power connector mainly comprises an insulation shell, a center terminal and at least one auxiliary terminal.This insulation shell has some receiving spaces, center terminal and auxiliary terminal can be contained in the insulation shell.But center terminal comprise one with the cylindrical docking section of abutment element butt joint, a winding to insulation shell and the base portion that links to each other with the docking section, a connecting portion that links to each other with base portion and links to each other with connecting portion and make progress and bend the terminal upper portion that extension forms.At least one side of base portion is provided with some interference parts, and center terminal effectively is immobilizated in the insulation shell.Auxiliary terminal has a sheet base portion, one first contact site that extends to form from the anterior downward-sloping certain angle of base portion, one installation portion that vertically extends downwards from base portion middle part, one extends to form second contact site and with the first contact site inclination equal angular downwards from the base portion rear portion extends upward the terminal upper portion that forms with the terminal upper portion equal height of center terminal from the base portion rear portion.Auxiliary terminal from up to down inserts insulation shell, is immobilizated in the insulation shell by installation portion is stable.

The beneficial effects of the utility model are:

(1) under the condition that does not increase the insulation shell size, improve the fixing effect of insulation shell to center terminal and auxiliary terminal, reduce center terminal and auxiliary terminal because the unsteadiness that the insertion force of abutment element causes, thereby guarantee the stability of current delivery.

(2) processing technology of simplification auxiliary terminal makes it simple in structure, saves material, saves production cost.

(3) because of auxiliary terminal from up to down inserts insulation shell, the rear end face of insulation shell need not to be provided with respective openings, so just can prevent that impurity such as dust from entering in the power connector, guarantees the current delivery quality.

Description of drawings

Fig. 1 is the three-dimensional exploded view of an existing power supply connector;

Fig. 2 is the stereogram of the utility model power connector one preferred embodiment;

Fig. 3 is the three-dimensional exploded view of the utility model power connector embodiment;

Fig. 4 is the three-dimensional exploded view of another angle embodiment illustrated in fig. 3;

Fig. 5 is the stereogram of the utility model power connector insulation shell;

Fig. 6 is the stereogram of another angle of insulation shell embodiment illustrated in fig. 5;

Fig. 7 is the stereogram of the utility model power connector center terminal;

Fig. 8 is the stereogram of the utility model power connector auxiliary terminal;

Fig. 9 is the front view of the utility model power connector;

Figure 10 is the generalized section of the power connector of Fig. 9 along the A-A direction;

Figure 11 is the vertical view of the utility model power connector;

Figure 12 is the generalized section of the power connector of Figure 11 along the B-B direction;

Figure 13 is the generalized section of the power connector of Figure 11 along the C-C direction;

Figure 14 is the stereogram of another angle of the utility model power connector.

The number in the figure explanation

The 1-power connector

The 2-insulation shell

20-front end face 21-rear end face

22-upper surface 23-docks the space

The 240-first holding slot 242-accommodates sky

Slit before the 244-accepting groove 261-

The 262-first reception room 263-second holding slot

Slit behind the 264-first reception room 265-

The 27-lower surface

The 3-center terminal

30-terminal upper portion 302-pressure contact portion

31-connecting portion 32-base portion

34-docking section, 322-interference part

The 4-auxiliary terminal

40-terminal upper portion 42-base portion

422-front end 424-rear end

The 44-first contact site 442-first make contact

The 46-second contact site 462-second contact point

48-installation portion 482-hangnail

Embodiment

Now in conjunction with the accompanying drawings the utility model power connector one preferred embodiment is described in detail below:

As shown in Figure 2, the utility model power connector 1 comprises: an insulation shell 2, a center terminal 3 and an auxiliary terminal 4, center terminal 3 all is contained in the insulation shell 2 with auxiliary terminal 4.

Extremely shown in Figure 6 in conjunction with Fig. 3, insulation shell 2 have one towards abutment element (as charger for mobile phone, not shown) front end face 20 and the rear end face 21 relative with this front end face 20, connect front end face 20 and rear end face 21 and be formed with a upper surface 22, a lower surface 27 respectively.The butt joint space 23 of one appropriate depth is arranged to insulation shell 2 sunken insides on front end face 20, be formed with a cylindrical accepting hole 242 (referring to Figure 10) and be through to rear end face 21 along these 23 axis, butt joint space.On rear end face 21 to insulation shell 2 sunken insides, one appropriate depth and first holding slot 240 that is communicated with accepting hole 242; 22 1 sides locate to be provided with an accepting groove 244 near insulation shell 2 sidewalls (not label) from the upper surface, and an end of this accepting groove 244 is positioned at the notch of rear end face 21 near first holding slot 240; 22 the accepting groove 244 other preceding slits 261 near front end face 20 that are provided with successively respectively from the upper surface, one abut before slit 261 and from the upper surface 22 first reception rooms 262 that are through to lower surface 27, one second holding slot 263, that abuts first reception room 262 abuts second holding slot 263 and 22 is through to second reception room 264 and of lower surface 27 near rear end face 21 and the back slit 265 that abuts with second reception room 264 from the upper surface.Wherein first reception room 262 and second reception room 264 communicate with butt joint space 23 respectively, and the structure of preceding slit 261, second holding slot 263 and back slit 265 equal corresponding auxiliary terminals 4 is done suitably to be provided with, but the three remains in the same perpendicular.

See also Fig. 3, Fig. 4 and shown in Figure 7, center terminal 3 is formed by metal derby punching press bending, it comprise one with abutment element (not shown) but the solid cylindrical docking section 34 of butt joint, a winding to first holding slot 240 of insulation shell 2 and the block base portion 32, the connecting portions 31 that link to each other with base portion 32 and that link to each other with docking section 34 link to each other with connecting portion 31 and make progress and bend the terminal upper portion 30 that extension forms.Base portion 32 at least one sides are provided with some interference parts 322, can do something in disregard of obstacles to relate to first holding slot, 240 inwalls (consulting Figure 10) of insulation shell 2, and center terminal 3 effectively is immobilizated in the insulation shell 2.Connecting portion 31 can be resisted against on the sidewall that first holding slot 240 and accepting groove 244 on insulation shell 2 rear end faces 21 have a common boundary (referring to Fig. 5, not label).For improving itself and the effect that contacts of circuit board (not shown), terminal upper portion 30 front ends are a bending, are provided with a pressure contact portion 302, are used for and the circuit board crimping.

See also Fig. 3, Fig. 4, Fig. 8 and shown in Figure 10, auxiliary terminal 4 is to be formed by sheet metal punching press bending, has a sheet base portion 42, one first contact site 44 that extends to form from base portion 42 anterior downward-sloping certain angles, one installation portion 48, that vertically extends downwards from base portion 42 middle parts extends to form the terminal upper portion 40 that extends upward terminal upper portion 30 equal heights of formation and center terminal 3 with second contact site 46 and of first contact site, 44 inclination equal angular from base portion 42 rear portions downwards from base portion 42 rear portions.Be provided with a front end 422 in the front portion of base portion 42, be provided with a rear end 424 at the rear portion of base portion 42.Auxiliary terminal 4 from up to down (a direction) inserts insulation shell 2, its front end 422 and rear end 424 embed respectively in the preceding slit 261 and back slit 265 of being located at insulation shell 2, its first contact site 44 and 46 of second contact sites are contained in insulation shell 2 corresponding first reception room 262 and second reception rooms 264 that are provided with respectively, installation portion 48 is then done something in disregard of obstacles by the some hangnails 482 that are provided with on its sidewall and is related to second holding slot 263 of being located at insulation shell 2, thereby makes auxiliary terminal 4 stable being immobilizated in the insulation shell 2.

Please refer to Fig. 2 to shown in Figure 14, when assembling power connector 1, center terminal 3 is pressed into from housing 2 rear portions of insulating.The cylindrical docking section 34 of center terminal 3 is passed the accepting hole 242 of insulation shell 2 and is contained in the butt joint space 23, the base portion 32 that is attached thereto is contained in first holding slot 240 of insulation shell 2, do something in disregard of obstacles and relate to first holding slot, 240 inwalls in its interference part 322, center terminal 3 effectively is immobilizated in the insulation shell 2.Connecting portion 31 can be resisted against on the sidewall that first holding slot 240 and accepting groove 244 on insulation shell 2 rear end faces 21 have a common boundary, and terminal upper portion 30 is played a supportive role.For improving itself and the effect that contacts of circuit board (not shown), terminal upper portion 30 front ends are bending, extend outside it from accepting groove 244 about center, can conveniently its pressure contact portion 302 be crimped to circuit board.Auxiliary terminal 4 from up to down is pressed into insulation shell 2 along a direction vertical with the abutment element direction of insertion.The front end 422 of its base portion 42 and rear end 424 embed respectively in the preceding slit 261 and back slit 265 of being located at insulation shell 2, its first contact site 44 and 46 of second contact sites are contained in insulation shell 2 corresponding first reception room 262 and second reception rooms 264 that are provided with respectively, installation portion 48 is then done something in disregard of obstacles by the some hangnails 482 that are provided with on its sidewall and is related to second holding slot 263 of being located at insulation shell 2, the interference fixing of front end 422, installation portion 48 and 424 3 places, rear end and insulation shell 2 by base portion 42 makes auxiliary terminal 4 stable being immobilizated in the insulation shell 2.In addition, the pressure contact portion 402 of auxiliary terminal 4 is located in the same horizontal plane with the pressure contact portion 302 of center terminal 3, can be crimped to circuit board reposefully.

In sum, center terminal 3 and auxiliary terminal 4 are retained in the insulation shell 2 by the Stability Analysis of Structures that is provided with separately, because auxiliary terminal 4 is from up to down to be pressed in the insulation shell 2 along a direction vertical with the abutment element direction of insertion, it is little that it is subjected to the influence that abutment element insertion force direction acts on repeatedly, because its installation direction is consistent with circuit board crimping direction, can better closely contact simultaneously with circuit board.Under the condition that does not increase insulation shell 2 sizes, improved the fixing effect of 2 pairs of center terminals 3 of insulation shell and auxiliary terminal 4, reduce center terminal 3 and auxiliary terminal 4 because the unsteadiness that the insertion force of abutment element causes, thereby guaranteed the stability of current delivery.Auxiliary terminal 4 simple in structure, easy to manufacture need not repeatedly to bend, and saved material, saves production cost.In addition, because auxiliary terminal 4 from up to down inserts insulation shell 2, the rear end face 21 of insulation shell 2 need not to be provided with respective openings, so just can prevent that impurity such as dust from entering in the power connector 1 assurance current delivery quality.

When abutment element is inserted butt joint space 23, at first contact the dome shape first make contact 442 of first contact site 44 of auxiliary terminal 4, because the downward-sloping at a certain angle setting of first contact site 44, have enough elasticity, therefore be subjected to outer moving after the effect of abutment element; When abutment element continue to be inserted, contact,, move outside therefore being subjected to after the effect of abutment element because the downward-sloping at a certain angle setting of second contact site 46 has enough elasticity with wedge-like second contact point 462 of second contact site 46; After treating that abutment element is inserted butt joint space 23 fully, first contact site 44 and second contact site 46 reset in succession.Wedge-like second contact point 462 of second contact site 46 can prevent that also abutment element from coming off.The abutment element inwall (links to each other with positive pole, not shown) dock with the docking section 34 of center terminal 3, outer wall (links to each other with negative pole, not shown) dock with first contact site 44, second contact site 46, and the pressure contact portion 402 of the pressure contact portion 302 of center terminal 3, auxiliary terminal 4 is crimped to circuit board (not shown), thereby constitute an electric path, realize reliable current delivery.

Though the utility model with preferred embodiment openly as above; yet it is not to be used for limiting the utility model; anyly be familiar with this operator; in not breaking away from spirit and scope of the present utility model; when doing a little change and retouching, therefore protection range of the present utility model should be as the criterion with the application's the scope that claims were defined.

Claims (11)

1, a kind of power connector, it can dock element butt joint transmission current with one, comprising: an insulation shell, a center terminal and at least one auxiliary terminal; But this insulation shell has some receiving space Collecting Center terminals and auxiliary terminal, it is characterized in that: auxiliary terminal comprises a base portion, at least one contact site that extends to form downwards from base portion, one from the downward installation portion that extends of base portion, described auxiliary terminal inserts insulation shell from the direction of docking the direction approximate vertical with abutment element, is immobilizated in the insulation shell by installation portion is stable.

2, power connector according to claim 1 is characterized in that described auxiliary terminal from up to down inserts insulation shell.

3, power connector according to claim 1 is characterized in that described auxiliary terminal comprises that first contact site and that extends to form from the anterior downward-sloping certain angle of base portion extends to form second contact site with the first contact site inclination equal angular downwards from the base portion rear portion.

4, power connector according to claim 3 is characterized in that described first contact site and second contact site are contained in corresponding first reception room and second reception room that is provided with of insulation shell respectively.

5, power connector according to claim 3 is characterized in that the installation portion of described auxiliary terminal vertically extends from the base portion middle part downwards, between first contact site and second contact site.

6, power connector according to claim 1, it is characterized in that described auxiliary terminal further comprises one in an anterior front end that is provided with of base portion and a rear end that is provided with at the base portion rear portion, front-end and back-end embed respectively in the preceding slit and back slit of being located at insulation shell, the interference fixing of front end, installation portion and three places, rear end and insulation shell by base portion makes that auxiliary terminal is stable to be immobilizated in the insulation shell.

7, power connector according to claim 1 is characterized in that described installation portion is done something in disregard of obstacles by the some hangnails that are provided with to relate to second holding slot of being located at insulation shell on its sidewall, auxiliary terminal is stable to be immobilizated in the insulation shell thereby make.

8, power connector according to claim 1, but it is characterized in that described center terminal comprises that one links to each other with connecting portion and makes progress with the solid cylindrical docking section of abutment element butt joint, block base portion, a connecting portion that links to each other with base portion and that a winding links to each other and bends the terminal upper portion that extension forms to first holding slot of insulation shell and with the docking section.

9, power connector according to claim 8 is characterized in that at least one side of described base portion is provided with some interference parts, and can do something in disregard of obstacles relates to the first holding slot inwall of insulation shell, and center terminal effectively is immobilizated in the insulation shell.

10,, it is characterized in that described auxiliary terminal comprises that further one extends upward the terminal upper portion that forms with the terminal upper portion equal height of center terminal from the base portion rear portion according to claim 1 or 8 described power connectors.

11, power connector according to claim 1 is characterized in that described center terminal and auxiliary terminal are crimped to circuit board.

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