CN111628348A

CN111628348A - Self-locking power connector

Info

Publication number: CN111628348A
Application number: CN202010511975.6A
Authority: CN
Inventors: 刘秋顺; 胡方刚
Original assignee: ASAP Technology Jiangxi Co Ltd
Current assignee: ASAP Technology Jiangxi Co Ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2020-09-04

Abstract

The invention provides a self-locking power connector, which comprises a butt joint end, wherein the butt joint end is provided with at least one jack for inserting at least one plug into the self-locking power connector; an inner frame; the outer die wraps the inner frame, and an opening is formed in one surface of the outer die; a self-locking member, assembled on the inner frame, for locking the plug; the power line is provided with a terminal, is assembled on the inner frame and is used for electrically connecting the plug, and is covered by an insulating sleeve; the butt joint end is clamped with the outer mold, and the inner frame penetrates through the butt joint end and the outer mold. The self-locking power connector is provided with the self-locking component, so that the plug can be automatically locked when being inserted, and the situation that the plug is loosened is avoided.

Description

Self-locking power connector

Technical Field

The present invention relates to a power connector, and more particularly, to a self-locking power connector.

Background

The delta-shaped tail power cord is very common in daily life and work, and for example, a household desktop computer, an electric cooker, a display and the like are powered by the power cord. In addition to home use, it may also occur in some conference sites or event venues, and also in servers for data centers. The electric appliances and equipment in these important occasions are required to keep a continuous operation state, and the power failure condition can never occur. For the existing power connector, the problem that the clamping force is insufficient after the plug of the common power line is inserted exists, so that when the electric appliance and the equipment are used, the situation that the power line can be loosened can be met, the electric appliance and the equipment stop working, data are lost, and the loss is serious.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides a self-locking power connector, which has a self-locking member, and can automatically lock a plug when the plug is inserted, so as to prevent the plug from loosening.

In order to achieve the above object, the present invention provides a self-locking power connector, comprising:

the butt joint end is provided with at least one jack for inserting at least one plug into the self-locking power connector;

an inner frame;

the outer die wraps the inner frame, and an opening is formed in one surface of the outer die;

a self-locking member, assembled on the inner frame, for locking the plug; and

at least one power line, which has a terminal, is assembled on the inner frame and is used for electrically connecting the plug, and is covered by an insulating sleeve;

the butt joint end is clamped with the outer mold, and the inner frame penetrates through the butt joint end and the outer mold.

In the above-mentioned self-locking power connector, the self-locking member includes a buckle, a switch button and an elastic member, and the buckle has a limiting hole for limiting the plug.

In the above-mentioned self-locking power connector, the elastic member is a spring plate, and the spring plate includes a straight wall, an inclined wall opposite to the straight wall, and a planar wall connecting the straight wall and the inclined wall.

In the above self-locking power connector, one end of the switch button has a groove, the other end of the switch button has a gap, one end of the buckle is clamped in the groove of the switch button, the other end of the buckle abuts against the inner frame, the straight wall is inserted into the gap, the inclined wall abuts against the inner frame, and the plane wall abuts against the inner frame.

In the self-locking power connector, the material of the buckle is metal.

In the self-locking power connector, the elastic sheet is made of metal.

In the above self-locking power connector, one end of the switch button has a protruding portion, and the upper surface of the protruding portion has a plurality of spaced stripes.

In the above self-locking power connector, the shape of the opening of the outer mold is adapted to the protrusion of the switch button, and the protrusion is exposed from the opening.

In the self-locking power connector, the inner frame further includes an inner frame upper cover, and the inner frame upper cover is covered on the inner frame and used for fixing the terminal of the power line on the inner frame.

In the self-locking power connector, the butt joint end is provided with three jacks which are arranged in a triangular manner, and the butt joint end and the outer mold are formed by injection molding.

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Drawings

Fig. 1 is a schematic overall appearance diagram of a self-locking power connector according to an embodiment of the present invention;

fig. 2 is an exploded view of the self-locking power connector according to the embodiment of the invention;

fig. 3A and 3B are schematic assembly diagrams of a terminal of a power line and an internal frame of the self-locking power connector according to an embodiment of the present invention;

fig. 4A and 4B are schematic views illustrating an assembly of the self-locking member and the inner frame of the self-locking power connector according to the embodiment of the invention;

fig. 5A and 5B are schematic assembly diagrams of a mating end and an internal frame of a self-locking power connector according to an embodiment of the present invention;

fig. 6 is an assembly diagram of an outer mold and a mating end of the self-locking power connector according to the embodiment of the invention;

fig. 7A and 7B are schematic cross-sectional views of a self-locking power connector according to an embodiment of the invention.

Reference numerals

10: self-locking power connector

11: butt joint end 111: jack hole

12: the inner frame 121: inner rack upper cover 122: fastening hole

123: groove 124: recess 1241: raised part

13: outer mold 131: opening of the container

14: the self-locking member 141: a buckle 1411: limiting hole

142: switch buttons 1421: projection 1422: clamping groove

1423: gap 143: the spring plate 1431: straight wall

1432: beveled wall 1433: plane wall

15: power supply line 151: terminal 152: insulating sleeve

21: plug with a locking mechanism

S1, S2: region d 1: length d 2: width of

Detailed Description

The invention will be described in detail with reference to the following drawings, which are provided for illustration purposes and the like:

fig. 1 is a schematic overall appearance diagram of a self-locking power connector according to an embodiment of the present invention.

Fig. 2 is an exploded schematic view of a self-locking power connector according to an embodiment of the present invention.

Fig. 3A, fig. 3B, fig. 4A, fig. 4B, fig. 5A, fig. 5B and fig. 6 are schematic assembly diagrams of the self-locking power connector according to the embodiment of the present invention; fig. 3A and 3B, fig. 4A and 4B, fig. 5A and 5B, and fig. 6 are respectively schematic assembly diagrams of a terminal and an inner frame, a self-locking member and the inner frame, a mating end and the inner frame, and an outer mold and the mating end of a power line of the self-locking power connector according to an embodiment of the present invention.

Referring to fig. 2, the self-locking power connector 10, for mating with a plug 21, includes a mating end 11, an inner frame 12, an outer frame 13, a self-locking member 14 and a power line 15.

Referring to fig. 3A and 3B, the power line 15 is assembled on the inner frame 12 and the end portion thereof is provided with a terminal 151, specifically, the power line 15 is assembled on the inner frame 12 and located on the lower surface of the inner frame 12 through the terminal 151 arranged on the end portion thereof, the lower surface of the inner frame 12 is provided with a groove 123, the terminal 151 is assembled in the groove 123, the shapes of the terminal 151 and the groove 123 are adapted to each other, in this embodiment, the terminal 151 and the groove 123 are both rectangular parallelepiped, the inner frame 12 further includes an inner frame upper cover 121, the inner frame upper cover 121 can be covered on the inner frame 12 and can be clamped with each other, the inner frame upper cover 121 can be used for more fixedly assembling the terminal 151 on the inner frame 12, specifically, the inner frame upper cover 121 can seal the opening of the groove 123, so that the terminal 151 is located in the groove 123 and is clamped by the inner frame upper cover 121 and the lower surface of the inner frame 12, therefore, the terminal 151 is restricted from being displaced or loosened. The number of the power lines 15 can be selected as required, that is, the number of the power lines 15 is set according to the number of the plugs 21 (shown in fig. 2), in this embodiment, the number of the power lines 15, the number of the plugs 21 (shown in fig. 2) and the number of the jacks 111 (shown in fig. 6) are the same, and are all set to three, the grooves 123 are adapted to the power lines 15, and the number of the power lines 15 is also set to three, and the positions of the terminals 151, the plugs 21 (shown in fig. 2) and the jacks 111 (shown in fig. 6) of the power lines 15 correspond to each other, and are all arranged in a triangular shape, so that the plugs 21 (shown in fig. 2) can be inserted into the self-locking power connector 10 through the jacks 111 (shown in fig. 6) and can be. Meanwhile, in the present embodiment, the power line 15 may be covered by the insulating sheath 152, so as to facilitate the power line 152 to be assembled on the inner frame 12 and to penetrate through the outer mold 13 (as shown in fig. 7A).

Referring to fig. 4A and 4B, the self-locking member 14 includes a buckle 141, a switch button 142 and a spring plate 143. The self-locking member 14 is assembled on the inner frame 12, specifically, the upper surface of the inner frame 12 is provided with a concave portion 124, and the buckle 141, the switch button 142 and the spring sheet 143 are all arranged in the concave portion 124; in this embodiment, the elastic sheet 143 is used as an elastic member to provide an elastic force corresponding to the self-locking member 14, the material of the elastic sheet 143 may be metal, but the invention is not limited thereto, and in other embodiments, the elastic member may also be other members with elasticity; in this embodiment, the elastic sheet 143 includes a straight wall 1431, an inclined wall 1432 opposite to the straight wall 1431, and a plane wall 1433 connecting the straight wall 1431 and the inclined wall 1432, wherein an included angle between a plane of the straight wall 1431 and an upper surface of the inner frame 12 is a right angle, an included angle between a plane of the inclined wall 1432 and an upper surface of the inner frame 12 is an acute angle, and a plane of the plane wall 1433 is parallel to the upper surface of the inner frame 12, that is, the straight wall 1431 is vertical to the upper surface of the inner frame 12, the inclined wall 1432 is inclined to the upper surface of the inner frame 12, the plane wall 1433 is attached to the upper surface of the inner frame 12, and the straight wall 1431, the inclined wall 1432, and the plane wall 1433 are continuously and integrally formed into the elastic sheet 143; the buckle 141 includes a limiting hole 1411, the shape of which is adapted to the shape of the plug 21 (as shown in fig. 2) for allowing the plug to pass through, in this embodiment, the plug 21 (as shown in fig. 2) is substantially rectangular, the limiting hole 1411 is rectangular, and the length d1 of the limiting hole 1411 is slightly greater than the width d2 of the plug 21 (as shown in fig. 2), so that the plug 21 can pass through the limiting hole 1411, and since the length d1 is only slightly greater than the width d2, the limiting hole 1411 is in an inclined state in a natural state, so that when the plug 21 (as shown in fig. 2) is inserted into the self-locking power connector 10 and passes through the limiting hole 1411, the limiting hole 1411 can clamp and limit the plug 21 (as shown in fig. 2), and the buckle 141 can be made of metal; in the present embodiment, the switch button 142 includes a protrusion 1421, a slot 1422 and a gap 1423, wherein the protrusion 1421 and the gap 1423 are disposed at the rear end of the switch button 142, the gap 1423 is disposed below the protrusion 1421 and close to the rear end wall of the switch button 142, the upper surface of the protrusion 1421 is provided with a plurality of spaced stripes for a user to conveniently push the switch button 142, and the slot 1422 is disposed at the front end of the switch button 142. The components and connection modes of the self-locking member 14 composed of the buckle 141, the switch button 142 and the spring plate 143 are as follows: the shape of the recess 124 provided on the upper surface of the inner frame 12 is adapted to the shape of the switch button 142, wherein the rear end of the recess 124 is provided with a protrusion 1241 for adapting to the protrusion 1421 at the rear end of the switch button 142, i.e. the protrusion 1241 has a larger depth than other parts of the recess 124, and the protrusion 1421 is higher than the protrusion 1241, i.e. the protrusion 1421 of the switch button 142 is exposed from the protrusion 1241, and other parts of the switch button 142 are flush with other parts of the recess 124; the straight wall 1431 of the spring plate 143 is inserted into the gap 1423 of the switch button 142, and the inclined wall 1431 of the spring plate 143 abuts against the rear end sidewall of the recess 124 of the inner frame 12; the upper end of the latch 141 is engaged with the engaging groove 1422 of the switch button 142, the lower end of the latch 142 abuts against the bottom surface of the recess 124 of the inner frame 12, for example, a latching hole 122 (as shown in fig. 3B) is formed on the bottom surface of the recess 124 of the inner frame 12, and the lower end of the latch 142 is engaged with the latching hole 122.

Referring to fig. 5A, 5B and 6, after completing the assembling process of the inner frame 12 and the power line 15, the inner frame 12 and the self-locking member 14 shown in fig. 3A and 3B and fig. 4A and 4B, the assembly of the abutting end 11 and the inner frame 12, and the abutting end 11 and the outer mold 13 is performed, as shown in fig. 5A and 5B, in this embodiment, the abutting end 11 may be a housing, the front end wall of the abutting end 11 is provided with three insertion holes 111, the three insertion holes 111 are arranged in a triangular arrangement, so that the corresponding plug 21 (shown in fig. 2) can be inserted into the self-locking power connector 10, and the rear end opposite to the front end wall of the abutting end 11 is arranged as an opening for inserting the inner frame 12, that is, the abutting end 11 is sleeved on the inner frame 12; as shown in fig. 6, the outer mold 13 is also sleeved on the inner frame 12, the butt end 11 and the outer mold 13 are clamped with each other and form an inner space, the inner frame 12 is located in the inner space, the surface of the outer mold 13 is provided with an opening 131, and the opening 131 is flush with a protrusion 1241 arranged at the rear end of the recess 124 of the inner frame 12, since the protrusion 1421 of the switch button 142 is higher than the protrusion 1241, the protrusion 1421 of the switch button 142 can be exposed from the opening 131, so that a user can push the switch button 142 conveniently, the power line 15 is wrapped by the insulating sleeve 152 and passes through and is fixed in the outer mold 13, and the butt end 11 and the outer mold 13 can be manufactured by injection molding.

Referring to fig. 7A and fig. 7B, fig. 7A is a schematic diagram of a state when the self-locking member 14 of the self-locking power connector 10 locks the plug 21 according to the embodiment of the invention, and fig. 7B is a schematic diagram of a state when the self-locking member 14 of the self-locking power connector 10 releases the plug 21 according to the embodiment of the invention. As shown in fig. 7A, in a natural state, the inclined wall 1432 of the elastic piece 143 abuts against the rear end side wall of the recess 124 of the inner frame 12, since the elastic piece 143 itself has an elastic force, and the direction of the elastic force is as indicated by an arrow in fig. 7A, and the latch 141 receives the elastic force through the switch button 142, so that the latch 141 is in an inclined state, and at the same time, the front end region S1 of the switch button 142 is filled in a containing space (see fig. 5B and 7B) in the region S2 of the front end wall of the opposite end 11, which is completely disposed inside the front end wall of the opposite end 11, and in practice, since the thickness of the front end wall of the opposite end 11 is large, the inside of the front end wall region S2 (shown in fig. 5B) of the opposite end 11 corresponding to the front end of the start button 142 can be directly hollowed out to form the containing space, and the shape of the containing space is adapted to the front end of the switch button 142, for example, the plug 21 is a rectangular parallelepiped, when the plug 21 of a certain device is inserted into the self-locking power connector 10 from the insertion hole 111, the plug 21 first passes through the limiting hole 1411 disposed on the buckle 141, and then contacts with the terminal 151 to realize the electrical connection with the power line 15, because the buckle 141 is in an inclined state by the elastic force provided by the elastic sheet 143, when the plug 21 is inserted, the plug 21 is automatically clamped by the buckle 141 through the limiting hole 1411 thereon, so that the plug 21 is subjected to a force preventing the plug 21 from being released from the self-locking power connector 10; as shown in fig. 7B, when the plug 21 needs to be pulled out from the self-locking power connector 10, the user only needs to push the switch button 142 in the direction of the arrow in fig. 7B, at this time, the elastic piece 143 is compressed, and the switch button 142 moves in the direction of the arrow as a whole, and the front end thereof moves out of the accommodating space, so as to guide the position of the buckle 141, so that the buckle 141 is in a vertical state, because the length d1 of the limiting hole 1411 is slightly greater than the width d2 of the plug 21, when the buckle 141 is vertical, the force preventing the plug 21 from being released from the self-locking power connector 10 is eliminated, the buckle 141 does not block the plug 21 any more, and the user can easily pull out the plug 21 from the self-locking power.

In summary, the self-locking power connector provided by the embodiment of the invention is provided with the self-locking member, when the plug is inserted into the self-locking power connector, the self-locking member automatically locks and locks the plug, and the self-locking member is very firm, so that accidental loss caused by loosening and dropping of the interface due to accidental pulling can be avoided.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A self-locking power connector, comprising:

an inner frame;

a self-locking member, assembled on the inner frame, for locking the plug; and

2. The self-locking power connector as claimed in claim 1, wherein the self-locking member comprises a latch having a limiting hole for limiting the plug, a switch button and an elastic member.

3. The self-locking power connector of claim 2, wherein the elastic member is a spring plate, and the spring plate comprises a straight wall, a slant wall opposite to the straight wall, and a plane wall connecting the straight wall and the slant wall.

4. The self-locking power connector as claimed in claim 3, wherein one end of the switch button has a slot, the other end of the switch button has a gap, one end of the latch is clamped in the slot of the switch button, the other end of the latch abuts against the inner frame, the straight wall is inserted into the gap, the inclined wall abuts against the inner frame, and the flat wall abuts against the inner frame.

5. The self-locking power connector of claim 2, wherein the material of the latch is metal.

6. The self-locking power connector of claim 3, wherein the spring plate is made of metal.

7. The self-locking power connector of claim 2, wherein the switch button has a protrusion at one end, and the protrusion has a plurality of spaced stripes on an upper surface thereof.

8. The self-locking power connector of claim 7, wherein the opening of the outer mold is shaped to fit the protrusion of the switch button, and the protrusion is exposed from the opening.

9. The self-locking power connector of claim 1, wherein the inner frame further comprises an inner frame upper cover covering the inner frame and configured to fix the terminals of the power cord to the inner frame.

10. The self-locking power connector of claim 1, wherein the mating end has three insertion holes and is arranged in a triangular shape, and the mating end and the outer mold are injection molded.