CN109193281A - A kind of attachment device - Google Patents

Abstract

The invention discloses a connection device, comprising: a plug, a base of the plug is connected with a pin and a first connection part; and a socket, the socket is provided with a slot and a first connection corresponding to the pin Two connecting parts; the first connecting part is arranged on the lower part of the base, and the second connecting part is arranged on the upper part of the socket; the first connecting part and the second connecting part are matched and connected; if If the first connection part and the second connection part do not match each other, the plug cannot be installed on the socket; in the state where the plug is installed on the socket, the pins and all There are electrical and mechanical connections between the slots. The connection device can prevent its plug from being mistakenly inserted into the socket of the connector of other types of connection devices.

Description

a connecting device

technical field

The invention belongs to the design field of lighting devices, and in particular relates to a connecting device.

Background technique

The Internet of Things is another new information science and technology after the computer and the Internet. At present, the major countries in the world have taken the Internet of Things as a major strategy to seize the commanding heights of a new round of economic and technological development, and the ubiquitous lighting fixtures will inevitably become An important connected part of the Internet of Things.

There is a problem that the plug of the electrical connection device of the existing lamp is mistakenly connected to the socket of other types of connectors.

SUMMARY OF THE INVENTION

An object of the present invention is to provide a connecting device capable of preventing its plug from being mistakenly inserted into a socket of a connector of other types of connecting devices.

For solving the above problems, the technical scheme of the present invention is:

A connection device, comprising:

a plug, the base of the plug is connected with a pin and a first connection part; and

a socket, the socket is provided with a slot corresponding to the pin and a second connection part;

in,

the first connecting part is arranged on the lower part of the base, and the second connecting part is arranged on the upper part of the socket;

the first connection part and the second connection part are matched and connected;

If the first connection part and the second connection part are not matched with each other, the plug cannot be installed on the socket;

In a state where the plug is mounted on the socket, there is an electrical connection and a mechanical connection between the pin and the socket.

According to an embodiment of the present invention, the first connecting portion is a cylindrical body located at the center of the base.

According to an embodiment of the present invention, the second connecting portion is a cylindrical groove corresponding to the position of the cylindrical body.

According to an embodiment of the present invention, when the cylindrical body is completely locked into the cylindrical groove, the positions of the cylindrical body and the cylindrical groove are relatively stable, and the cylindrical body and the cylindrical groove are engaged with each other. connect.

According to an embodiment of the present invention, the pins are arranged on the periphery of the cylinder.

According to an embodiment of the present invention, the socket is provided with a slot matched with the pin.

According to an embodiment of the present invention, when the pins are completely inserted into the sockets, the pins and the sockets are relatively stable in being fixed.

According to an embodiment of the present invention, the pins are arranged on the same arc surface.

According to an embodiment of the present invention, the pin is L-shaped, the L-shaped pin has a head and a tail, the head of the L-shaped pin is a flat block structure, and the tail of the L-shaped pin is an arc structure.

According to an embodiment of the present invention, the inlet shape of the slot is an arc-shaped inlet, and the L-shaped pin can be inserted into the bottom of the slot first, and then screwed into the slot.

According to an embodiment of the present invention, the pin and the base are connected by injection molding or by interference extrusion.

According to an embodiment of the present invention, the number of the pins is N=3, and the size of one of the pins is larger than the size of the other two pins.

According to an embodiment of the present invention, the diameter D of the cylinder satisfies: 6mm≤D≤10mm;

The height H of the cylinder satisfies: 10mm≤H.

According to an embodiment of the present invention, the diameter of the cylindrical groove is not less than the diameter of the cylindrical body, and the depth of the cylindrical groove is not less than the height of the cylindrical body.

According to an embodiment of the present invention, the arc structure is provided with a clamping hole.

According to an embodiment of the present invention, a conductive insertion spring group is arranged inside the slot, the conductive insertion spring group includes a first insertion spring and a second insertion spring, and the curved surface structure is clamped on the first insertion spring and the second insert spring.

According to an embodiment of the present invention, the side surface of the first insertion spring is provided with a snap-on bump; in the state of the plug being rotated and tightened, the snap-fit bump is locked in the snap hole, and the pin and the The first insertion spring is mechanically connected through the snap-on bump and the snap hole.

According to an embodiment of the present invention, the latching protrusions fall into the latching holes to assist in loosening.

According to an embodiment of the present invention, when the plug is inserted into a cylindrical groove of another socket that does not match the cylinder, the distance between the pin and the conductive spring of the other socket is greater than or equal to 2 mm, and the surface of the other socket is The top surface of the cylinder is limited to prevent the pins from contacting the conductive springs of the other sockets, resulting in electrical damage.

According to an embodiment of the present invention, the L-shaped pin is inserted into the socket, and rotated at a small angle, the L-shaped pin can hook the top surface of the socket on which the conductive spring set is placed, the There is a rounded corner at the entrance of the top surface, which is convenient for the L-shaped pins to be screwed in and realizes a reliable mechanical connection between the pins and the socket.

According to an embodiment of the present invention, the first insert spring and the second insert spring are brass insert springs.

According to an embodiment of the present invention, the base and the socket are made of insulating materials.

Compared with the prior art, the present invention has the following advantages and positive effects due to the adoption of the above technical solutions:

In an embodiment of the present invention, a first connection part is provided at the lower part of the base, and a second connection part matched with the first connection part is provided at the upper part of the socket; if the first connection part and the second connection part do not match each other , the plug cannot be installed on the socket, which effectively prevents the plug of the connecting device from being inserted into the socket of other similar connectors by mistake, thereby causing damage to the connecting device.

Description of drawings

Fig. 1 is a structural diagram of a connection device of the present invention;

Figure 2 is a structural view of a plug of a connection device of the present invention;

Fig. 3 is the exploded view of Fig. 2;

Fig. 4 is the bottom view of Fig. 2;

5 is a structural diagram of a socket of a connection device of the present invention;

FIG. 6 is a cross-sectional view of the first connecting part and the second connecting part in a connecting device of the present invention when they are matched and connected (the view from which the snap-on bump is snapped into the snap hole);

7 is a cross-sectional view of the first connection part and the second connection part in a connection device according to the present invention when they are matched and connected (the angle of view from the arc structure clipped into the conductive spring set);

FIG. 8 is a cross-sectional view of a connection device of the present invention when the first connection part and the second connection part are not matched and connected.

Description of reference numbers:

1: Plug; 2: Base; 3: Socket; 301: Arc-shaped inlet; 302: First spring; 303: Second spring; 304: Snap-on bump; 4: Pin; 401: Flat block Structure; 402: Arc surface structure; 403: Card hole; 5: Cylinder; 6: Slot; 7: Cylinder groove; 8: Other sockets; 9: Round corner.

Detailed ways

The connection device proposed by the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become apparent from the following description and claims.

1 to 7, a connection device includes: a plug 1, a base 2 of the plug 1 is connected with pins 4 and a first connection part; and a socket 3, the socket 3 is provided with corresponding pins 4. The slot 6 and the second connection part; wherein, the first connection part is arranged at the lower part of the base 2, and the second connection part is arranged at the upper part of the socket 3; the first connection part and the second connection part are matched and connected; If the plug 1 and the second connection part do not match each other, the plug 1 cannot be installed on the socket 3; in the state where the plug 1 is installed on the socket 3, there are electrical and mechanical connections between the pins 4 and the socket 6.

Specifically, the base 2 and the socket 3 are made of insulating materials.

Specifically, the first connecting part is a cylindrical body 5, the cylindrical body 5 is located at the center of the base 2, the second connecting part is a cylindrical groove 7, and the cylindrical groove 7 corresponds to the position of the cylindrical body 5; The diameter of the groove 7 is not less than the diameter of the cylindrical body 5 , and the depth of the cylindrical groove 7 is not less than the height of the cylindrical body 5 .

6 and 7 are cross-sectional views of the cylindrical body 5 and the cylindrical groove 7 in this embodiment when they are matched and connected; FIG. 8 is a cross-sectional view of the cylindrical body 5 and the cylindrical groove 7 in this embodiment when they are not matched and connected.

Preferably, the diameter D of the cylinder satisfies: 6mm≤D≤10mm; the height H of the cylinder satisfies: 10mm≤H. Some sockets of existing connectors have rivet holes of Φ6, and the cylinder 5 smaller than Φ6 cannot prevent mis-insertion. If the diameter of the cylinder 5 is greater than Φ10, the diameter of the cylindrical groove 7 must be greater than Φ10. After repeated tests in the laboratory, if a cylindrical groove 7 larger than Φ10 is provided, the structural strength of the socket 3 will be damaged. Therefore, the diameter D of the cylinder 5 needs to satisfy: 6mm≤D<10mm. Preferably, the diameter of the cylindrical groove 7 is equal to or slightly larger than the diameter of the cylindrical body 5, that is, the cylindrical body 5 can just be snapped into the cylindrical groove 7 as expected in this embodiment, and the cylindrical body 5 can just be snapped into the cylindrical body 5. The groove 7 keeps the base 2 and the socket 3 in a relatively fixed state.

In the above, the first connecting part is a cylinder 5, and the second connecting part is a cylindrical groove 7, which is only an implementation scheme of this embodiment. As an alternative embodiment, the first connecting part can be a cylindrical groove 7, The second connecting portion may be a cylinder 5 .

Of course, the first connecting portion can also be a square bump or an irregular bump, and the second connecting portion can be changed accordingly.

Further, referring to FIG. 2 and FIG. 4 , the pins 4 are arranged on the periphery of the cylindrical body 5 . The pin 4 is L-shaped, the L-shaped pin 4 has a head and a tail, the head of the L-shaped pin 4 is a flat block structure 401, the tail of the L-shaped pin 4 is an arc structure 402, and the arc structure 402 is provided with Card hole 403.

Further, referring to FIG. 5, the socket 3 is provided with a slot 6 that matches the pin 4. When the pin 4 is completely inserted into the slot 6, the fixing of the pin 4 and the slot 6 is relatively stable, and the slot 6 is relatively stable. The shape of the inlet is arc-shaped inlet 301 , and the L-shaped pin 4 can be inserted into the bottom of the slot 6 first, and then screwed into the slot 6 .

Specifically, the pin 4 and the base 2 are connected by injection molding or by interference extrusion.

Specifically, the pins 4 are arranged on the same arc surface, and the arrangement of the pins 4 on the same arc surface can facilitate the insertion of the pins 4 into the slots 6 by rotation.

Specifically, the number of pins 4 is N=3, and the size of one pin is larger than the size of the remaining two pins.

Further, referring to FIG. 6 and FIG. 7 , a conductive insertion spring group is arranged inside the slot 6 , and the conductive insertion spring group includes a first insertion spring 302 and a second insertion spring 303 , and the curved surface structure 402 is clamped on the first insertion spring. 302 and the second insert spring 303.

Further, the side surface of the first insertion spring 302 is provided with a snap-on bump 304; when the plug 1 is rotated and tightened, the snap-fit bump 304 is stuck in the snap hole 403, and the pin 4 and the first insert spring 302 pass through the snap-on bump The point 304 and the card hole 403 are mechanically connected. The snap-on bumps 304 fall into the snap holes 403 to assist loosening.

Further, when the cylindrical body 5 is completely clamped into the cylindrical groove 7, the positions of the cylindrical body 5 and the cylindrical groove 7 are relatively stable, and the cylindrical body 5 and the cylindrical groove 7 are snap-connected. When the plug 1 is inserted into the cylindrical groove 7 of the other socket that does not match the cylinder 5, when the distance W between the pin 4 and the conductive spring of the other socket 8 is at least 2 mm, the surface of the other socket 8 will touch the top of the cylinder 5. To prevent the pin 4 from contacting the conductive springs of other sockets 8, it will cause electrical damage.

Further, the L-shaped pin 4 is inserted into the slot 6, and by rotating at a small angle, the L-shaped pin 4 can hook the top surface of the socket 3 on which the conductive plug spring group is placed, so as to realize a reliable mechanical connection between the pin 4 and the socket 3. , there is a rounded corner 9 at the entrance of the top surface, which is convenient for the L-shaped pin 4 to be screwed in.

Specifically, the first insert spring 302 and the second insert spring 303 are brass insert springs.

The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and the technical equivalents thereof, they still fall within the protection scope of the present invention.

Claims (22)

1. A connection device, comprising:

the base of the plug is connected with a contact pin and a first connecting part; and

the socket is provided with a slot corresponding to the contact pin and a second connecting part;

wherein,

the first connecting part is arranged at the lower part of the base, and the second connecting part is arranged at the upper part of the socket;

the first connecting part and the second connecting part are connected in a matching manner;

if the first connecting part and the second connecting part are not matched with each other, the plug cannot be installed on the socket;

in a state where the plug is mounted on the socket, the pin and the socket have electrical and mechanical connections therebetween.

2. The connecting device of claim 1 wherein said first connecting portion is a cylindrical body located at a central location of said base.

3. The connecting device of claim 2 wherein said second connecting portion is a cylindrical recess corresponding in position to said cylinder.

4. A coupling device according to claim 3, wherein the positions of the cylindrical body and the cylindrical recess are relatively stable in a state where the cylindrical body is completely fitted into the cylindrical recess, and the cylindrical body and the cylindrical recess are engaged.

5. A connector as claimed in claim 3, wherein said pins are provided on the periphery of said cylindrical body.

6. The connecting device as claimed in claim 5, wherein the socket is provided with a slot matching with the pin.

7. The connecting device as claimed in claim 6, wherein the fixing of the pin and the socket is relatively stable in a state where the pin is completely inserted into the socket.

8. A connecting device as claimed in claim 6, characterized in that the pins are arranged on the same circular arc.

9. The connector of claim 8, wherein the pin is L-shaped, the L-shaped pin having a head portion and a tail portion, the head portion of the L-shaped pin having a flat block configuration and the tail portion of the L-shaped pin having a cambered surface configuration.

10. The connecting device as claimed in claim 9, wherein the entrance of the socket is a circular arc entrance, and the L-shaped pin is inserted into the bottom of the socket and then screwed into the socket.

11. The connection device of claim 5 wherein the pin and the base are injection molded or interference extruded.

12. The connecting device as claimed in claim 10, wherein the number N of the pins is 3, and the size of one of the pins is larger than the size of the other two pins.

13. The coupling device of claim 12, wherein the diameter D of the cylindrical body satisfies: d is more than or equal to 6mm and less than or equal to 10 mm;

the height H of the cylinder satisfies: h is less than or equal to 10 mm.

14. The coupling device of claim 13, wherein the diameter of the cylindrical recess is not less than the diameter of the cylindrical body, and the depth of the cylindrical recess is not less than the height of the cylindrical body.

15. The connector of claim 14, wherein the arcuate surface structure defines a snap-fit aperture.

16. The connecting device as claimed in claim 15, wherein the slot is provided with a conductive insertion spring set therein, the conductive insertion spring set includes a first insertion spring and a second insertion spring, and the curved structure is clamped between the first insertion spring and the second insertion spring.

17. The connector of claim 16, wherein the first spring has a snap-fit protrusion on a side thereof; under the rotatory state of screwing up of plug, joint bump card in the card hole, the contact pin with first plug spring passes through the joint bump with the mechanical connection is realized to the card hole.

18. The connector of claim 17, wherein said snap bumps are received in said snap holes to assist in release.

19. The connecting device as claimed in claim 18, wherein when the plug is inserted into the cylindrical recess of the socket, the distance between the pin and the conductive springs of the socket is 2mm or more, and the surface of the socket limits the top surface of the cylindrical body to prevent the pin from contacting the conductive springs of the socket, which may cause electrical damage.

20. The connecting device as claimed in claim 19, wherein said L-shaped pin is inserted into said slot, and through a small angle of rotation, said L-shaped pin hooks a top surface of said socket on which said set of conductive pins are mounted, and an entrance of said top surface has a rounded corner for facilitating the insertion of said L-shaped pin, thereby achieving a secure mechanical connection between said pin and said socket.

21. The connector of claim 16, wherein the first and second springs are brass springs.

22. The connecting device of claim 1 wherein said base and said socket are made of an insulating material.