CN201717406U - Power socket structure - Google Patents

Abstract

A socket construction comprising: a plastic seat, in which a connecting groove is set, at least one side of said connecting groove is only set with a terminal moving groove, said terminal moving groove is communicated with said connecting groove, the front end of said plastic seat is set with an inserting hole of said connecting groove, said connecting groove can be connected with a male joint, the outer surface of said male joint is set with a groove; at least one negative terminal, which is provided with a fixed part, an elastic arm and a pin, wherein the fixed part is fixed with the plastic seat, the elastic arm can be elastically moved in the terminal movable groove, the elastic arm is provided with a contact part, and the contact part protrudes to the connecting groove; and a positive terminal, which is provided with a fixed part, a contact part and a pin, wherein the fixed part is fixed with the plastic seat, and the contact part is a cylinder positioned in the middle of the connecting groove and extends towards the insertion opening of the connecting groove; the negative terminal is provided with a connecting groove, and the connecting groove is provided with at least one connecting groove which is used for connecting the negative terminal and the male terminal.

Description

Power outlet structure

【Technical field】

The utility model relates to an electric connector, in particular to a power socket structure.

【Background technique】

Please refer to Fig. 1 and Fig. 2, it is a kind of existing DC power socket, and it is used for electrically connecting a male connector 25, and it is provided with a plastic seat 10, a positive pole terminal 15, two negative pole terminals 20, wherein:

The plastic seat 10 is provided with a connection groove 11 and abutting portion 12 is provided near the insertion opening of the connection groove 11 .

The positive terminal 15 is provided with a fixing portion 16 and a contact portion 17 , the fixing portion 16 is fixed to the plastic seat 10 , the contact portion 17 is a cylinder located in the middle of the connection groove 11 and extends to an insertion opening of the connection groove 11 .

The two negative terminals 20 are located on both sides of the connection groove 11, and are provided with a fixing portion 21 and an elastic arm 22, the fixing portion 21 is fixed to the plastic seat 10, and the elastic arm 22 is bent to have a protruding contact The contact portion 23 protrudes to the connecting slot 11 , and the rear end of the elastic arm 22 abuts against the abutting portion 12 .

The male connector 25 is provided with a plastic body 26, a negative lead-in part 27 and a positive lead-in part 28, the plastic body 26 is provided with a cylindrical connection groove 29, and the negative lead-in part 27 is formed into a cylindrical casing and covers Located on the outside of the plastic body 26 , the positive lead portion 28 is fixed on the plastic body 26 and has a harpoon-shaped shrapnel located in the connection groove 29 . In addition, a groove 210 is provided on the outer surface near the insertion end.

In use, when the male connector 25 is inserted into the connection groove 11, when the front end of the male connector 25 is pressed against the contact portion 23 of the negative terminal 20, there must be sufficient insertion force to push away the elastic arm 22, and the It can be quickly inserted to the position. At this time, the negative connection portion 27 of the male connector 25 is electrically connected to the contact portion 23 of the two negative terminals 20 , while the positive connection portion 28 is elastically clamped to the contact portion 17 of the positive terminal 15 . Since the DC power socket is best to use the male connector to quickly plug and unplug, this can increase the service life of the DC power socket.

The existing structure has the following disadvantages, that is, after the male connector 25 is inserted and positioned, there is still a certain distance between the contact portion 23 of the negative terminal 20 and the groove 210, so the contact portion 23 of the negative terminal 20 does not have the groove 210 for elastic buckle. Therefore, when the male connector is pulled out, there is no buckling force for the first time, and the user cannot be forced to pull it out quickly when pulling it out.

【Content of utility model】

The main purpose of this utility model is to provide a power socket structure, which is provided with an elastic fastener that can be elastically buckled in the groove on the outer surface of the male connector, so that when the male connector is pulled out, a large pull-out force is required and the male connector is inserted. Afterwards, there is a more stable positioning.

To achieve the above purpose, the utility model socket structure includes: a plastic seat, which is provided with a connection groove, at least one side of the connection groove is only provided with a terminal movable groove, and the terminal movable groove communicates with the connection groove, and the plastic seat The front end is provided with the insertion port of the connecting groove, and the connecting groove can be connected with a male joint, and the outer surface of the male joint is provided with a groove; at least one negative electrode terminal is provided with a fixing part, an elastic arm and a pin, and the fixing part Fixed with the plastic seat, the spring arm can bounce in the terminal movable groove, the spring arm is provided with a contact part, and the contact part protrudes to the connection groove; and a positive terminal is provided with a fixing part and a contact part and a pin, the fixed part is fixed to the plastic seat, the contact part is a cylinder located in the middle of the connecting groove and extends toward the insertion port of the connecting groove; it is characterized in that at least one elastic fastener is provided on the negative terminal At the rear of the contact portion, the elastic fastener is provided with at least one protrusion protruding to the connecting groove, and the protrusion can elastically snap into the groove of the male connector.

The power socket structure is characterized in that: the two opposite sides of the connecting groove of the plastic seat are provided with only one movable terminal groove, and there are two at least one negative terminal.

The power socket structure is characterized in that: the elastic fastener is integrally connected with the negative terminal, and the elastic fastener is punched and protruded from the elastic arm of the negative terminal.

The power socket structure is characterized in that: the elastic fastener is provided with a fixing part fixed to the rear end of the plastic seat.

The power socket structure is characterized in that: the elastic fastener is provided with a fixing part and at least one elastic piece, the fixing part is fixed on the peripheral wall of the connecting groove of the plastic seat, and the elastic piece is provided with the convex part.

The structure of the power socket is characterized in that: the contact portion of the negative terminal is provided with a small plane that contacts with the negative conducting portion of the male connector.

The power socket structure is characterized in that: the contact portion of the negative terminal pierces and protrudes from the middle of the plate surface of the elastic arm.

The structure of the power socket is characterized in that: the front end of the contact portion of the positive terminal is provided with an introduction slope, and a concave groove is provided behind the introduction slope.

The structure of the power socket is characterized in that: when the male connector is pulled out, the convex part elastically snaps into the groove of the male connector, and the positive lead part of the male connector snaps into the groove of the positive terminal.

The structure of the power socket is characterized in that it is also provided with a metal shell covering the outside of the plastic seat.

The above and other objectives, advantages and features of the present invention can be more clearly understood from the following detailed description of the preferred embodiments and with reference to the drawings.

【Description of drawings】

FIG. 1 is a sectional exploded view of a conventional DC power socket and a male connector.

Fig. 2 is a cross-sectional combined view of a conventional DC power socket and a male connector.

Fig. 3 is a three-dimensional exploded view of the first embodiment of the present invention.

Fig. 4 is a three-dimensional combined view of the first embodiment of the utility model.

Fig. 5 is a cross-sectional view of the combination of the terminal and the plastic seat according to the first embodiment of the present invention.

Fig. 6 is a cross-sectional view of the combination of the terminal and the plastic seat according to the first embodiment of the present invention.

Fig. 7 is a diagram of the insertion and positioning state of the male joint according to the first embodiment of the present invention.

Fig. 8 is a drawing of the male connector pulled out in the first embodiment of the present invention.

Fig. 9 is a diagram of the pulled-out state of the male connector of the first embodiment of the present invention.

Fig. 10 is a diagram of the pulled-out state of the male connector of the first embodiment of the present invention.

Fig. 11 is a cross-sectional view of a combination of a terminal and a plastic seat according to the second embodiment of the present invention.

Fig. 12 is a diagram of the insertion and positioning state of the male connector according to the second embodiment of the present invention.

Fig. 13 is a cross-sectional view of a combination of a terminal and a plastic seat according to the third embodiment of the present invention.

Fig. 14 is a diagram of the insertion and positioning state of the male joint according to the third embodiment of the present invention.

Fig. 15 is a cross-sectional view of a combination of a terminal and a plastic seat according to the fourth embodiment of the present invention.

Fig. 16 is a cross-sectional view of a combination of a terminal and a plastic seat according to a fifth embodiment of the present invention.

Fig. 17 is a cross-sectional view of a combination of a terminal and a plastic seat according to the sixth embodiment of the present invention.

Fig. 18 is a cross-sectional view of a combination of a terminal and a plastic seat according to the seventh embodiment of the present invention.

Fig. 19 is a cross-sectional view of the combination of the terminal and the plastic seat according to the eighth embodiment of the present invention.

Fig. 20 is a cross-sectional perspective view of the combination of the terminal and the plastic seat according to the eighth embodiment of the present invention.

Fig. 21 is a cross-sectional view of a combination of a terminal and a plastic seat according to the ninth embodiment of the present invention.

Fig. 22 is a cross-sectional perspective view of a combination of a terminal and a plastic seat according to the ninth embodiment of the present invention.

Fig. 23 is an exploded perspective view of the tenth embodiment of the present utility model.

Fig. 24 is a cross-sectional view of a combination of a terminal and a plastic seat according to the tenth embodiment of the present invention.

Fig. 25 is an exploded perspective view of the eleventh embodiment of the utility model.

Fig. 26 is a sectional view of a combination of a terminal and a plastic seat in an eleventh embodiment of the present invention.

Fig. 27 is a sectional view of a combination of a terminal and a plastic seat according to the twelfth embodiment of the present invention.

Male connector 25 Plastic body 26 Negative electrode conductor 27

Positive lead-in part 28 Connection groove 29 Groove 210

Plastic seat 40 Connection groove 41 Terminal movable groove 42 Terminal movable groove 43

Opening 44 Abutment surface 45 Insertion port 46 Abutment part 47 Card 48

Negative terminal 50 Fixed part 51 Elastic arm 52 Pin 53

Elastic card 55 Contact part 54 Negative terminal 56 Fixed part 57

Elastic arm 58 Contact part 59 Tail section 510

Elastic fastener 60 Convex part 61 Fixed part 62 Elastic arm 63

Shrapnel 64 Positive terminal 70 Fixed part 71 Contact part 72

Pin 73 Card slot 74 Lead-in slope 75 Groove 76

Metal shell 80 Main casing 81 Front casing 82

【Detailed ways】

Please refer to Fig. 3, Fig. 4, Fig. 5 and Fig. 6, which are the first embodiment of the present utility model, which is a DC power socket, which includes a plastic seat 40, two negative pole terminals 50, a positive pole terminal 70 and a metal shell 80, of which:

The plastic seat 40 is provided with a cylindrical connection groove 41, and two corresponding sides of the connection groove 41 are respectively provided with a terminal movable groove 42, and the terminal movable groove 42 is provided with an opening 44 communicated with the connection groove 41, the terminal The width of the opening 44 of the movable groove is smaller than the width of the movable groove 42 of the terminal. The two sides of the opening 44 form an abutment surface 45. The front end of the plastic seat 40 is provided with an insertion port 46 of the connection groove 41, and is close to the insertion port 46. An abutment portion 12 is provided.

The two negative terminals 50 are located on two corresponding sides of the connecting groove 41. The negative terminal 50 is provided with a fixing portion 51, an elastic arm 52 and a pin 53. The fixing portion 51 is fixed to the plastic seat 40 and corresponds to Inside the first terminal movable groove 42, the fixing part 51 is pierced with an elastic card 55 locked with the plastic seat 40, so as to prevent the first terminal from withdrawing, and the elastic arm 52 can bounce in the first terminal movable groove 42 A contact portion 54 protrudes from the middle of the front plate surface of the elastic arm 52 and an elastic fastener 60 protrudes from the middle of the rear plate surface. Only one end of the elastic fastener 60 is connected to the elastic arm and is bent with a The convex part 61 protrudes to the connecting groove 41, and the tail end of the elastic arm 52 abuts against the abutting part 47 of the plastic seat. The plate width of the contact part 54 is smaller than that of the elastic arm 52. The elastic arm 52 is two The contact portion 54 of the negative terminal 50 can protrude from the opening 44 to the connecting groove 41, and the elastic arm 52 cannot enter the connecting groove 42. Slot 41.

The positive terminal 70 is provided with a fixing part 71, a contact part 72 and a pin 73. The fixing part 71 is fixed to the plastic base and has a card slot 74, which is locked by a card 48. The contact part 72 is a The cylinder is located in the middle of the connection groove 41 and extends toward the insertion opening of the connection groove 41 . The front end of the contact portion 72 is provided with an introduction slope 75 , and a groove 76 is formed behind the introduction slope 75 .

The metal shell 80 is provided with a main casing 81 and a front casing 82 , the front casing 82 is sleeved on the front end of the plastic base 40 , and the main casing 81 is sleeved on the upper end and left and right sides of the plastic base 40 .

In use, please refer to FIG. 7 , when the male connector 25 is inserted into the connecting groove 41 for positioning, when the front end of the male connector 25 presses against the contact portion 54 of the negative terminal 50 , there must be enough insertion force to push away the elastic arm 22 , With this insertion force, it can be quickly inserted into position. At this time, the positive electrode connecting portion 28 is elastically clamped on the contact portion 72 of the positive electrode terminal 70 and is slightly behind the concave groove 76. The convex portion 61 of the elastic fastener 60 is elastically clamped. Abut against the groove 210 of the male connector 25 slightly in front; please refer to FIG. 8 , when the male connector 25 is pulled out for the first time, the positive lead portion 28 of the male connector 25 elastically snaps into the groove 76 of the positive terminal 70 And the convex part 61 of the elastic fastener 60 is elastically buckled in the groove 210 of the male connector 25. At this time, the maximum pull-out force is required, so that the user is forced to pull out quickly when pulling out; please Referring to Fig. 9, the positive terminal 70 has been separated from the positive connecting portion 28 at this moment, and both of them are de-energized. Please refer to Fig. 10, it is in the pulled-out state at this time. From the above description of the action, it can be seen that the operation of this embodiment requires the largest pulling force at the first time of pulling out, so that the user is forced to pull out quickly when pulling out, and because the positive electrode will be separated first, it can be pulled out quickly. Cut off the power in the shortest time to avoid heating due to long contact time, which is necessary for the use of this product.

Please refer to Fig. 11 and Fig. 12, which is the second embodiment of the present utility model, which is roughly the same as the first embodiment, the difference is that the contact portion 72 of the positive terminal 70 of this embodiment is not provided with a groove, so that the male connector 25 It would be better to clamp the contact portion 72 of the positive terminal 70 with the positive connecting portion 28 of the positive electrode, and the buckle function can be completely achieved by the buckle between the elastic fastener 60 and the groove 210 .

Please refer to Fig. 13 and Fig. 14, which is the third embodiment of the present utility model, which is roughly the same as the first embodiment, the difference is that the contact portion 72 of the positive terminal 70 of this embodiment is longer, so that the positive lead of the male connector 25 The connecting portion 28 clamps the contact portion 72 of the positive terminal 70 deeper, which ensures better contact.

Please refer to Fig. 15, which is the fourth embodiment of the present utility model, which is roughly the same as the first embodiment, and the difference is that the terminal movable groove 42 of this embodiment is only provided with an abutment portion 47 at the upper end, and the entire width is open and The connecting grooves 41 communicate with each other. The contact portion 54 of the two negative terminals 50 is directly formed by bending the front section of the elastic arm 52 , while the elastic fastener 60 is still pierced and protruded by the rear section of the elastic arm 52 .

Please refer to Fig. 16, which is the fifth embodiment of the utility model, which is roughly the same as the fourth embodiment, the difference is that the opposite sides of the connection groove 41 of this embodiment are provided with terminal movable grooves 42 with different lateral space sizes , 43, the terminal movable slots 42, 43 are respectively provided with a negative terminal 50, 56, the negative terminal 50 is the same structure as the fourth embodiment, the negative terminal 56 is provided with a fixing part 57 and an elastic arm 58, the fixing part 57 Fixed with the plastic seat 40, the elastic arm 58 can bounce in the terminal movable groove 43 and extend toward the rear end of the seat. The elastic arm 58 has a contact part 59 protruding to the connecting groove 41 and in the The board surface behind part 59 punctures and protrudes an elastic fastener 60, and this elastic fastener 60 is provided with a protruding part 61 protruding to this connection groove 41, and this negative pole terminal 56 is the forward elastic type, and its elastic arm 58 does not The situation of bending and kneeling toward the connection groove 41 will occur due to the insertion force.

Please refer to FIG. 17 , which is the sixth embodiment of the present utility model, which is roughly the same as the third embodiment and the fifth embodiment. The negative terminal 50 has the same structure as the third embodiment, and the negative terminal 56 is roughly the same as the fifth embodiment. The negative terminal 55 is similar to the negative terminal 55 of this embodiment, and the difference is that the tail section 510 of the elastic arm 58 of the negative terminal 55 in this embodiment is folded toward the insertion opening 46 and abuts against the fixing portion 57 .

Please refer to FIG. 18 , which is the seventh embodiment of the present invention, which is roughly the same as the sixth embodiment, the difference being that the diameter of the front end of the contact portion 72 of the positive terminal 70 of this embodiment is larger.

Please refer to Fig. 19 and Fig. 20, it is the eighth embodiment of the present utility model, which is roughly the same as the third embodiment, the difference is that the elastic fastener 60 and the negative terminal 50 of this embodiment are not integrally stamped and formed. Two independent elastic fasteners 60 are arranged on the inner side of the two negative terminals 50 and behind the contact portion 54 respectively. At the end, the plate surface of the spring arm 63 is pierced to form a protrusion 61 protruding to the connecting groove 41 , and the protrusion 61 can elastically snap into the groove of the male connector.

Please refer to FIG. 21 and FIG. 22 , which is the ninth embodiment of the present utility model, which is roughly the same as the eighth embodiment, the difference being that the elastic arm 63 of the elastic fastener 60 of this embodiment abuts against the elastic arm of the negative terminal 50 52, the elastic arm 63 is pierced to protrude an elastic piece 64, and the elastic piece 64 is bent to have a convex portion 61 protruding to the connecting groove 41, and the convex portion 61 can elastically snap into the groove of the male connector.

Please refer to Fig. 23 and Fig. 24, which is the tenth embodiment of the present utility model, which is roughly the same as the eighth embodiment, the difference is that this embodiment is provided with two elastic fasteners 60, and the elastic fastener 60 is provided with a fixing part 62 And two elastic pieces 64, the fixed portion 62 of the two elastic fasteners 60 is symmetrically fixed on the peripheral wall of the connecting groove 41 of the plastic seat 40, each of the two elastic pieces 64 is provided with a convex portion 61 protruding to the connecting groove, and the convex portion 61 The groove of the male connector can be buckled elastically.

Please refer to Fig. 25 and Fig. 26, it is the eleventh embodiment of the present utility model, which is roughly the same as the tenth embodiment, the difference is that this embodiment is only provided with an elastic fastener 60, and the elastic fastener 60 is provided with a fixing part 62 and four elastic pieces 64, the fixing portion 62 is in a square shape and a circular hole is arranged in the middle, the four elastic pieces 64 are symmetrically arranged on the fixing portion 62 and protrude toward the circular hole, the fixing portion 62 of the elastic fastener 60 is Fixed on the peripheral wall of the connection groove 41 of the plastic seat 40, each of the four elastic pieces 64 is provided with a protrusion 61 protruding from the connection groove, and the protrusion 61 can be snapped elastically into the groove of the male connector. In addition, the two negative poles The contact portion 54 of the terminal 50 is a small plane, so that when the male connector is pulled out, the protrusion 61 of the elastic fastener 60 can elastically snap into the groove of the male connector at the first time of pulling out. Maximum output force, and when pulling out, because the contact portion 54 of the negative terminal 50 is a small plane, it can avoid the groove 210 on the outer surface of the buckle male connector and reduce the pulling out force.

Please refer to Fig. 27, which is the twelfth embodiment of the utility model, which is roughly the same as the eighth embodiment, the difference is that the elastic fastener 60 of this embodiment is made by blanking, and the elastic fastener 60 is provided with a fixed part 62 and an elastic arm 63, the fixed part 62 is fixed on the rear end of the plastic seat 40, the front end of the elastic arm 63 forms a convex part 61 protruding to the connecting groove 41, and the convex part 61 can be snapped elastically to the male Connector groove.

From the above description, the utility model can summarize the following advantages:

1. The utility model has the effect of quick insertion and quick extraction in operation.

2. The utility model is additionally equipped with an elastic fastener 60 which can be elastically snapped into the groove 210 on the outer surface of the male connector 25, so that a greater pull-out force is required when the male connector is pulled out and the male connector has a more stable positioning after insertion.

3. When the male connector 25 is pulled out for the first time, the positive lead part 28 of the male connector 25 is elastically buckled in the groove 76 of the positive terminal 70 and the convex part 61 of the elastic fastener 60 is elastically buckled in the male connector 25. The groove 210 of the connector 25 needs to have the maximum pull-out force at this time, so that the user is forced to pull out quickly when pulling out, and then the positive terminal 70 can be connected to the positive lead of the male connector 25 in advance. The connection portion 28 is separated to form a power failure.

4. The fixing part of the first terminal of the utility model is pierced with an elastic card and locked with the plastic seat, so as to prevent the first terminal from withdrawing.

5. The buckle function of the utility model can be completely achieved by the buckle between the elastic fastener 60 and the groove 210, so that the positive terminal 70 does not need to be provided with the groove 76, and the positive guide part 28 of the male connector 25 clamps the positive terminal 70. Contact portion 72 would be preferred.

6. The utility model can use the protrusion 61 of the elastic fastener 60 to elastically buckle the groove of the male connector at the first time of pulling out to have the maximum output force, and when pulling out again, due to the contact part of the negative terminal 50 54 is a small plane to avoid the groove 210 on the surface of the buckle male connector and reduce the pull-out force.

The specific embodiments proposed in the detailed description of the preferred embodiments are only for the ease of explaining the technical content of the present utility model, and are not limited to the present utility model in a narrow sense. The situation of applying for a patent scope can be implemented in various ways.

Claims (10)

1. a supply socket is constructed, and includes:

One plastic cement seat is provided with a link slot in the described plastic cement seat, and at least one side of this link slot only is provided with a terminal loose slot, this terminal loose slot communicates with this link slot, this plastic cement seat front end is provided with the insertion mouth of this link slot, and this link slot can connect a male joint, and this male joint appearance is provided with a groove;

At least one negative terminal, it is provided with a fixed part, an elastic arm and a pin, and this fixed part and this plastic cement seat are fixed, and this elastic arm can be in this terminal loose slot springing, and this elastic arm is provided with a contact site, and this contact site is protruding to this link slot; And

One positive terminal is provided with a fixed part, a contact site and a pin, and this fixed part and this plastic cement seat are fixed, and this contact site is that a cylinder is positioned in the middle of this link slot and extends to the insertion mouth of link slot;

It is characterized in that: also be provided with the contact site rear that at least one spring secures rail to sleeper is positioned at this negative terminal, this spring secures rail to sleeper is provided with at least one protuberance that is protruding to this link slot, the groove that this protuberance can this male joint of Elastic buckle.

2. supply socket structure as claimed in claim 1, it is characterized in that: each only is provided with a terminal loose slot relative two sides of the link slot of this plastic cement seat, and this at least one negative terminal is two.

3. supply socket structure as claimed in claim 1, it is characterized in that: this spring secures rail to sleeper links to each other with this negative terminal one, and this spring secures rail to sleeper punctures the punching press protrusion from the elastic arm of this negative terminal.

4. supply socket structure as claimed in claim 1, it is characterized in that: this spring secures rail to sleeper is provided with a fixed part and is fixed in the plastic cement base rear end.

5. supply socket structure as claimed in claim 1, it is characterized in that: this spring secures rail to sleeper is provided with a fixed part and at least one shell fragment, and this fixed part is fixed in the perisporium of the link slot of plastic cement seat, and this shell fragment is provided with this protuberance.

6. supply socket structure as claimed in claim 1, it is characterized in that: the contact site of this negative terminal is provided with a facet and contacts with the negative pole junction of male joint.

7. supply socket structure as claimed in claim 1 is characterized in that: the contact site of this negative terminal is to puncture protrusion in the middle of the plate face of this elastic arm.

8. supply socket structure as claimed in claim 1, it is characterized in that: the contact site front end of this positive terminal is provided with the importing inclined-plane, is provided with a chase after this importing inclined-plane.

9. supply socket as claimed in claim 8 structure is characterized in that: this protuberance Elastic buckle is in the chase of anodal this positive terminal of junction buckle of the groove of this male joint and male joint when this male joint is extracted.

10. supply socket structure as claimed in claim 1 is characterized in that: also be provided with a metal shell and be coated on outside this plastic cement seat.

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