CN101557088A - Junction box and electronic equipment - Google Patents

Abstract

The embodiment of the invention discloses a junction box and electronic equipment, and relates to the technical field of electric wire connection. In order to solve the technical problem that an EMC risk is easily formed outside the electronic equipment when the electrical device on the single board in the existing electronic equipment is connected to an external wire. The junction box includes a box body, a wiring conductor, and a connector and an anti-loosening shrapnel arranged in the box body. The wiring conductor is arranged through the box body. One end of the box body is connected with the connecting piece, one end of the anti-loosening shrapnel is socketed with the connecting piece, and the other end is fixedly connected with the box body. The electronic equipment includes a casing, the junction box fixed on the casing, and a single board arranged in the casing, the single board is provided with electrical devices, and the terminal of the wiring conductor of the junction box located outside the box of the junction box passes through the casing The through holes on the board are electrically connected to the electrical devices on the board. The invention is suitable for the occasion where communication electronic equipment is connected with electric wires.

Description

Junction boxes and electronics

technical field

The invention relates to the technical field of wire connection, in particular to a junction box and an electronic device.

Background technique

In the field of communication electronics, the existing electronic equipment usually includes a casing and a single board (or circuit board) inside the casing. The casing is used to shield electromagnetic interference and electromagnetic radiation in the electronic equipment. It is a terminal block for connecting electric wires between electrical devices on the board and other devices. As shown in Figure 1 and Figure 2, the existing terminal block includes an insulating base body 20, a wiring conductor 6 and a screw 21 arranged on the insulating base body 20, and a connecting terminal 5 is sleeved on the screw 21, and one end of the wiring conductor 6 It is welded on the electrical device of the single board, and its other end is arranged between the screw 21 and the insulating base 20 . When the external wire is connected, one end of the external wire is connected to the terminal 5, and then the screw 21 is tightened to make the terminal 5 contact with the conductor 6, so as to realize the electrical connection of the external wire to the terminal block and the electrical device on the single board.

In the course of realizing the present invention, the inventor finds that the prior art has at least the following problems:

In order to realize the wiring operation of the terminal block on the single board, the shell of the electronic equipment is equipped with a working window or door specially for the operator to carry out the wiring operation and lead the external wires out of the shell, which greatly reduces the shielding effect of the shell of the electronic equipment on the radio frequency signal , the direct exposure of the external wires to the single board will take the radio frequency signal (modulated, radio wave with a certain transmission frequency) out of the shell and form electromagnetic interference or EMC (electromagnetic compatibility) risks outside the electronic equipment, especially for radio frequency single boards EMC risks are more likely to occur.

Contents of the invention

On the one hand, the embodiment of the present invention provides a junction box, which solves the problem that in the prior art, when using the junction base to connect the electrical devices on the single board in the housing of the electronic equipment, the housing needs to be specially set up for the operator to perform the wiring operation and connect the external The technical problem that the shielding effect of the electronic equipment shell on the radio frequency signal in the single board is weakened when the wire is led out of the working window or door of the shell.

In order to achieve the above purpose, the junction box of the embodiment of the present invention adopts the following technical solutions:

The junction box includes a box body, a wiring conductor, a connecting piece and an anti-loosening elastic sheet arranged in the box body, the wiring conductor is arranged through the box body, and one end of the wiring conductor is located in the box body, The other end is located outside the box, one end of the wiring conductor located in the box is connected to the connecting piece, one end of the anti-loosening shrapnel is socketed with the connecting piece, and the other end is fixedly connected to the connecting piece. on the box body.

On the other hand, the embodiment of the present invention also provides an electronic device, which solves the technical problem that the external wires in the electronic device easily bring radio frequency signals out of the electronic device's casing, resulting in EMC risks.

The electronic equipment includes a casing, a junction box fixed on the casing, and a single board arranged in the casing, the single board is provided with electrical devices, wherein the casing is provided with through holes, and the junction box includes a box body, The wiring conductor and the connecting piece and the anti-loosening shrapnel arranged in the box body, the wiring conductor is arranged through the box body, one end of the wiring conductor is located in the box body, and the other end is located outside the box body , one end of the wiring conductor located in the box body is connected to the connecting piece, one end of the anti-loosening shrapnel is sleeved with the connecting piece, and the other end is fixedly connected to the box body, and the wiring conductor One end of the conductor located outside the box is electrically connected to the electrical device on the single board through the through hole.

It can be seen from the above that the shell of the electronic device is provided with a through hole through which the wiring conductor can pass. When the junction box is electrically connected to the external wire for operation, there is no need to set up a special connection for the operator on the shell of the electronic device. Leading the external wires out of the working window or door of the housing improves the shielding effect of the housing on radio frequency signals and solves the technical problem that the external wires in the electronic equipment easily take the radio frequency signals out of the housing of the electronic equipment and cause EMC risks.

Description of drawings

Fig. 1 is a structural schematic diagram of a terminal block in the prior art;

Fig. 2 is a structural schematic diagram when the terminal block in the prior art shown in Fig. 1 is provided with terminals;

Fig. 3 is a schematic diagram of the structure when the box body of the junction box is pivotally connected to the box cover according to the embodiment of the present invention;

FIG. 4 is a schematic structural view of a wiring conductor in a junction box according to an embodiment of the present invention;

Fig. 5 is a schematic structural view of the junction box according to the embodiment of the present invention after the wiring conductor is installed;

6 is a schematic diagram of the connection relationship between the junction box and the electrical components of the single board according to the embodiment of the present invention;

7 is a schematic diagram of the connection relationship between the junction box and the housing of the electronic device according to the embodiment of the present invention;

FIG. 8 is a schematic diagram of the connection relationship between the junction box and the electrical components of the single board and the housing of the electronic equipment according to the embodiment of the present invention.

Detailed ways

Embodiments of the present invention provide a junction box on the one hand, and provide an electronic device on the other hand.

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 3, Figure 5 and Figure 6, the junction box provided by the embodiment of the present invention includes a box body 1 and a box cover 2 pivotally connected to the box body 1, and the materials of the box body 1 and the box cover 2 are insulating The box body 1 includes a bottom plate 19 and three side plates 15, 16, 17 vertically arranged around the upper surface of the bottom plate 19, and the box cover 2 is pivotally connected to the side plate 16.

The bottom plate 19 of the box body 1 is provided with two slots 14, and two conductive copper bars made of pure copper, that is, the wiring conductors 6, are respectively inserted into the bottom plate 19 from top to bottom in a direction perpendicular to the bottom plate 19 of the box body 1. On the two slots 14, the edge of the slot 14 is provided with an insulating sheath 131 to prevent the wiring conductor 6 from leaking, and the insulating sheath 131 is sleeved on the part of the wiring conductor 6 that is located outside the box body at one end 63 close to the slot 14 .

Please also refer to Fig. 4, the wiring conductor 6 is positioned at an end 62 in the box body and an end 63 positioned at the outside of the box is all plate-shaped, and the sides of the wiring conductor 6 positioned at the end 62 in the box body and the side of an end 63 positioned at the box outside are perpendicular to each other and connected. As a whole, after the wiring conductor 6 is inserted into the slot 14, the wiring conductor 6 is positioned at an end 62 in the box body and is parallel to the base plate 19, and the wiring conductor 6 is positioned at an end 63 outside the box body and is perpendicular to the bottom plate 19; The end face of one end 62 in the body can also be connected vertically with the end face of one end 63 outside the box body. After the wiring conductor 6 of this structure is inserted into the slot 14, the end 62 of the wiring conductor 6 in the box body can also realize the connection with the bottom plate. 19 are parallel, and the connection conductor 6 is positioned at an end 63 outside the box body and can also realize being perpendicular to the base plate 19; both ends of the connection conductor 6 are provided with connecting holes 61; A nut 191 injection molded on the base plate 19 is fixed directly below the hole 61; each connection conductor 6 is positioned at the connecting hole 61 on one end 62 in the box body and is sleeved with a screw or a bolt that is compatible with the nut 191. Connector 3.

One end 62 of the wiring conductor 6 inside the box is used for electrical connection with external wires, and one end 63 of the wiring conductor 6 outside the box is used for electrical connection with the electrical device 101 on the single board 10 . When one end 62 of the wiring conductor 6 located in the box body is connected to the external wire, after the external wire is clamped on the OT-type cold-pressed terminal 5, the cold-pressed terminal 5 is sleeved on the screw body of the connector 3, and then the connector 3 Align the connection hole 61 on the end 62 of the wiring conductor 6 in the box body and the nut 191 on the bottom plate 19, then press down and tighten the connecting piece 3, so that the cold-pressed terminal 5 is pressed on the wiring conductor 6, and the cold The crimping terminal 5 is in contact with the wiring conductor 6 , that is, the electrical connection between the external wire and the wiring conductor 6 can be realized, and the wiring conductor 6 is also fixed on the box body 1 while the connector 3 is tightened.

When using the above method to realize the electrical connection between the external wire and the wiring conductor 6, when replacing the external wire, it is necessary to unscrew the connector 3, and then take out the cold-pressed terminal 5 connected to the external wire. Falling, in the embodiment of the present invention, the screw rod of the connector 3 is also sleeved with a curved anti-loosening shrapnel 7 as shown in Figure 5 and Figure 6, and one end of the anti-loosening shrapnel 7 is sleeved on the screw rod of the connector 3 The other end is fixed on the bottom plate 19 in the box body 1 by screws 4. In addition to the function of elastic gaskets to prevent loosening, the anti-loosening shrapnel 7 can also prevent the connector 3 from falling after being loosened, so that the operator You can perform wiring operations with confidence.

Of course, in the embodiment of the present invention, there are many ways to connect the end 62 of the wiring conductor 6 located in the box to the external wire. For example: one end 62 of the wiring conductor 6 located in the box body may not be provided with a connection hole 61. After the screw of the connector 3 is sleeved with a cold-pressed terminal 5, a conductive device is then socketed, and the connector 3 is aligned with the bottom plate 19. The nut 14 on the top, and then press down and tighten the connector 3, so that the cold-pressed terminal 5 is pressed on the conductive device to form an electrical connection with it, and then one end of the conductive device is in contact with the end 62 of the wiring conductor 6 located in the box. Electrical connection, so that the electrical connection between the external wire and the wiring conductor 6 at one end 62 of the box body can also be realized; another example: use conductive material to make the connector 3, and then directly connect the external wire to the connector 3, or directly connect the The external wires are socketed or welded on the end 62 of the wiring conductor 6 located in the box body, both of which can realize the electrical connection between the external wires and the end 62 of the wiring conductor 6 located in the box body.

In order to avoid short circuit between different externally connected wires, a bar-shaped insulating partition 91 is arranged between the two connecting conductors 6 at one end 62 in the box body. The partition 91 can isolate the two wiring conductors 6 and the external wires electrically connected to the two wiring conductors 6 respectively. In order to make the external wires electrically connected with the wiring conductor 6 to be able to go out from the box body 1, a side of the maximum extension direction of the insulating partition plate 91 on the box body 1 is provided with a wire slot 9 or a wire hole. Four side plates are arranged around, and outlet slots 9 or outlet holes are set up on the side panels in the maximum extension direction of the insulating partition 91. When the box cover 2 is closed on the box body 1, the external wires can be pulled out from the outlet slots 9. box body 1.

Please refer to FIG. 7 and FIG. 8 together. In the embodiment of the present invention, the junction box is used to realize the electrical connection between the external wire and the electrical device 101 on the single board in the electronic device, so that the external wire supplies power to the electrical device 101 .

After connecting the junction box provided by the embodiment of the present invention with the external wires, connect the ends 63 of the two wiring conductors 6 outside the box to the two electrical devices 101 on the single board 10 respectively through the sockets on the connection holes 61. Screws 12 or bolts or a combination of screws, bolts and nuts are fixedly connected to form an electrical connection. After the connection is completed, the external wires can supply power to the electrical device 101 through the junction box. One end 63 of the wiring conductor 6 located outside the box can be installed on the electric device 101 on the front (top) surface of the single board 10 or on the electric device 101 on the reverse (bottom) surface of the single board 10 .

In order to better shield the electromagnetic radiation signal generated by the electrical device 101 on the single board, the electronic equipment is provided with a casing 11 or a metal cover that covers the single board 10, and is used to fix the junction box on the outside of the casing 11 in the thickness direction. On the surface, the bottom of the side of the junction box is parallel to the outer surface in the thickness direction of the casing 11. There is a mounting convex edge 8, and a mounting hole 81 is provided on the mounting convex edge 8, and a mounting hole 81 is provided on the casing 11 corresponding to the position of the mounting hole 81. The screw hole 111 is used to fix the junction box on the outer surface of the shell 11 in the thickness direction by using screws or bolts, and the external wires can supply power to the electrical device 101 on the single board 10 through the junction box from the thickness direction of the shell 11 .

In the embodiment of the present invention, the two wiring conductors adopt the same design, so there is no need to distinguish the installation position and sequence during the assembly process, and the installation is flexible and convenient. After the connection operation of the external wire and the wiring conductor is completed, the box cover is closed, and the entire junction box is insulated from the outside, which avoids the potential safety hazard of leakage in the junction box.

The junction box of the embodiment of the present invention makes the electrical connection between the external wires and the electrical devices on the single board more convenient, and the housing of the electronic equipment only needs to open through holes through which the wiring conductors can pass, which will not affect the connection of the housing to the radio frequency signal in the single board. Shielding effect, in addition, the electrical connection operation of the external wires and wiring conductors is carried out on the box outside the casing, and the operation space is large, so it solves the problem of using the electrical devices on the single board in the wiring seat and the electronic equipment casing in the prior art When wiring, the shell needs to be provided with a working window or door specially for the operator to carry out the wiring operation and lead the external wires out of the shell, which leads to the technical problem that the shielding effect of the shell of the electronic device on the radio frequency signal in the single board is weakened.

The embodiment of the present invention also provides an electronic device.

As shown in FIGS. 6 and 8 , the electronic equipment according to the embodiment of the present invention includes a housing 11 provided with a through hole 13 and a single board 10 disposed in the housing 11 , the single board 10 is provided with an electrical device 101 , and the outer surface of the housing 11 is A junction box is installed. The shell 11 is used to shield the electromagnetic radiation signal generated by the electrical device 101 on the single board. In order to achieve a better shielding effect, one end of the shell 11 is grounded, and its material is a conductive material, preferably a metal material or a surface coated with Insulating material for the metal layer.

Please refer to Fig. 3, Fig. 5 and Fig. 7 together. In the embodiment of the present invention, the junction box includes a box body 1 and a box cover 2 pivotally connected to the box body 1. The box body 1 includes a bottom plate 19 and is vertically arranged on the bottom plate 19. Three side plates 15, 16, 17 around the surface, and the lid 2 is pivotally connected to the side plate 16. The bottom plate 19 of the box body 1 is provided with two slots 14, and the two wiring conductors 6 are respectively inserted into the two slots 14 of the bottom plate 19 from top to bottom in a direction perpendicular to the bottom plate 19 of the box body 1, and the slots The box body 1 at the edge of 14 is provided with an insulating sheath 131 , and the insulating sheath 131 is sleeved on the portion of the connecting conductor 6 that is located outside the box body at one end 63 close to the slot 14 .

One end 62 of the wiring conductor 6 positioned in the box body and one end 63 positioned outside the box body are all plate-shaped as shown in Figure 4, and the side surfaces of the one end 62 of the wiring conductor 6 positioned in the box body and the side surface of one end 63 positioned outside the box body are perpendicular to each other and connected as a whole , after the wiring conductor 6 is inserted into the slot 14, the wiring conductor 6 is positioned at an end 62 in the box body and is parallel to the base plate 19, and the wiring conductor 6 is positioned at an end 63 outside the box body and is perpendicular to the bottom plate 19; both ends of the wiring conductor 6 are provided with Connecting hole 61; Each wiring conductor 6 is positioned at the bottom of connecting hole 61 on one end 62 in the box body and is all fixed with a nut 191 injected on the bottom plate 19; Each wiring conductor 6 is positioned at the connection on one end 62 in the box body Screws or bolts that are compatible with the nut 191 are sleeved on the holes 61, that is, the connector 3, and the screw rod of the connector 3 is sleeved with a curved anti-loosening shrapnel 7, and one end of the anti-loosening shrapnel 7 is sleeved. On the screw rod of the connector 3, the other end is fixed on the bottom plate 19 in the box body 1 by the screw 4; a strip-shaped insulating partition whose extension direction is parallel to the outgoing direction of the external electric wire is provided between the two wiring conductors 6 91 , on one side of the maximum extension direction of the insulating partition plate 91 on the box body 1 , a wire outlet groove 9 is opened.

After the insulating sheath 131 of the junction box is plugged into the through hole 13, the end 63 of the wiring conductor 6 located outside the box passes through the insulating sheath 131 and the through hole 13 and is inserted into the housing 11 and the electrical device 101 on the single board 10 through screws. 12 or bolts are fixedly connected to form an electrical connection, and the insulating sheath 131 prevents the wiring conductor 6 from leaking electricity from the through hole 13 and the slot 14.

The electronic device in the embodiment of the present invention only needs to provide a through hole on the casing through which the wiring conductor can pass, and then the electrical connection between the external wire and the electrical device in the board can be realized through the wiring conductor, thereby realizing power supply for the electrical device from the outside. There is no need to set a working window or door on the casing for operators to perform wiring operations and lead the external wires out of the casing, which improves the shielding effect of the casing on radio frequency signals.

Since all the electrical devices inside the electronic equipment need to dissipate heat, the direction of the heat dissipation is mostly the front or back of the board. The box is arranged in the thickness direction of the shell, that is, on the side of the single board, which will not affect the heat dissipation effect of the electronic equipment, and the wiring operation is more convenient.

To sum up, the electronic device of the embodiment of the present invention solves the problem that the external wires in the existing electronic device easily take the radio frequency signal out of the shell of the electronic device to form electromagnetic interference or EMC risks, the heat dissipation effect of the electronic device is affected by the terminal block, and the The technical problem that the existing wiring operation is cumbersome.

Claims (14)

1, a kind of terminal box, it is characterized in that: comprise box body, wire conductors and be located at described box body interior connector and anti-loose shell fragment, described wire conductors runs through and is arranged on the described box body, one end of described wire conductors is positioned at described box body, the other end is positioned at outside the described box body, the end that described wire conductors is positioned at described box body links to each other with described connector, and an end and the described connector of described anti-loose shell fragment socket-connect, and the other end is connected on the described box body.

2, terminal box according to claim 1 is characterized in that: described connector is screw or bolt, and the end that described wire conductors is positioned at described box body offers connecting hole, and described screw or bolt sleeve are connected on the described connecting hole.

3, terminal box according to claim 2 is characterized in that: also be socketed with the cold weld line terminals on described screw or the bolt.

4, terminal box according to claim 2 is characterized in that: offer on the described box body and the suitable screw of described connector.

5, terminal box according to claim 2 is characterized in that: described box body is provided with nut, and described connector is fixedlyed connected with described nut.

6, terminal box according to claim 1 is characterized in that: described wire conductors is at least two, is provided with dividing plate between the described adjacent end of two wire conductors in described box body.

7, terminal box according to claim 1 is characterized in that: offer fluting on the described box body, described wire conductors runs through by described fluting and is arranged on the described box body, and described fluting edge is provided with the insulating sleeve that is socketed on the described wire conductors.

8, terminal box according to claim 1 is characterized in that: be articulated with lid on the described insulation box body.

9, a kind of electronic equipment, it is characterized in that: described electronic equipment comprises shell, be fixed on the terminal box on the described shell and be located at the interior veneer of shell, described veneer is provided with the electricity consumption device, wherein, described shell is provided with through hole, described terminal box comprises box body, wire conductors and be located at connector and anti-loose shell fragment in the described box body, described wire conductors runs through and is arranged on the described box body, one end of described wire conductors is positioned at described box body, the other end is positioned at outside the described box body, the end that described wire conductors is positioned at described box body links to each other with described connector, one end and the described connector of described anti-loose shell fragment socket-connect, the other end is connected on the described box body, and described wire conductors is positioned at the outer end of described box body and passes described through hole and be electrically connected with electricity consumption device on the described veneer.

10, electronic equipment according to claim 9, it is characterized in that: offer fluting on the described box body, described wire conductors runs through by described fluting and is arranged on the described box body, described fluting edge is provided with the insulating sleeve that is socketed on the described wire conductors, and described wire conductors is positioned at the outer end of described box body and passes described through hole by described insulating sleeve.

11, electronic equipment according to claim 9 is characterized in that: described connector is screw or bolt, and the end that described wire conductors is positioned at described box body offers connecting hole, and described screw or bolt sleeve are connected on the described connecting hole.

12, electronic equipment according to claim 11 is characterized in that: also be socketed with the cold weld line terminals on described screw or the bolt.

13, electronic equipment according to claim 11 is characterized in that: offer on the described box body and the suitable screw of described connector.

14, electronic equipment according to claim 11 is characterized in that: described box body is provided with nut, and described connector is fixedlyed connected with described nut.

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