CN210272886U

CN210272886U - External safety device of cable

Info

Publication number: CN210272886U
Application number: CN201920784116.7U
Authority: CN
Inventors: 杨雄航; 张西建
Original assignee: Hunan Sinoevin Optoelectronic Technology Co ltd
Current assignee: Hunan Sinoevin Optoelectronic Technology Co ltd
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-04-07
Anticipated expiration: 2029-05-28

Abstract

The utility model provides an external safeties of cable, belongs to cable insurance technical field, including casing (10), a pair of opposite face opening on casing (10) is in order to form the socket, casing (10) embeds there is circuit board (11), it is provided with N fuse (12) to arrange on circuit board (11), two on casing (10) respectively be provided with N signal plug (15) in the socket, and both sides N in the socket signal plug (15) correspond with N fuse (12) one-to-one electricity is connected and respectively the one-to-one inserts jack on quick-witted case (2) with in the jack on safeties connector (4). The external safety device of the cable provided by the utility model can be increased or reduced along with the needs of the project, the disassembly is convenient, the case does not need to be disassembled in the process of replacing the safety device, the internal board card does not need to be disassembled, the pulling and plugging with points are realized, and the rapidness and the convenience are really achieved; and the maintainability, reliability and safety of the equipment are greatly improved.

Description

External safety device of cable

Technical Field

The utility model belongs to the technical field of the cable insurance, concretely relates to external safeties of cable.

Background

At present, the fuse is mainly used for power lines, and the situation of using the fuse in the field of parallel multi-path signal lines is rare. However, in order to prevent the device from being burnt out due to short circuit caused by line connection errors, the safety device is added on the signal line, so that the safety device is practical and valuable, and the cables in the current market are not provided with the safety device.

In practical applications, fuses are generally integrated into the board of the PCB. However, this brings great inconvenience to the replacement of the safety device, which makes maintenance difficult. Meanwhile, the area of the PCB board card is required to be increased to place the fuse, and the size of the chassis is directly determined by the size of the area of the PCB in the practical application process. In this case, the design of an external cable safety device can be considered to solve the problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a: the utility model provides an external safeties of cable for with the terminal safeties connector of cable and quick-witted case electricity connect in order to realize quick-witted case with signal transmission between the cable, including the casing, a pair of opposite face opening on the casing is in order to form the socket, the casing is built-in to have the circuit board, it is provided with N fuse to arrange on the circuit board, two on the casing respectively be provided with N signal plug in the socket, and both sides N in the socket signal plug corresponds with N the fuse one-to-one electricity is connected and is inserted respectively the jack on the quick-witted case with in the jack on the safeties connector.

Preferably, the outer side edges of the sockets on two sides of the shell extend outwards to form slots.

Preferably, each signal plug is fixed on the circuit board in a welding mode.

Preferably, a solder joint is arranged between each fuse and the corresponding signal plug, the solder joint is arranged on the circuit board, and each signal plug is fixed at the corresponding solder joint.

Preferably, fixing posts are formed outwards on the shell on two sides of the socket.

Preferably, the fixing column is provided with a fixing hole.

Preferably, the housing is a rectangular parallelepiped.

The external cable safety device provided by the utility model can be increased or reduced according to the needs of projects, is convenient to disassemble, does not need to disassemble the case in the process of replacing the safety device, does not need to disassemble the built-in board card, only needs to take down the connector of the cable from the safety device, and then takes down the safety device from the rear part of the case to complete the replacement; moreover, the plug and pull with points are realized, and the rapidness and the convenience are really achieved; and the maintainability, reliability and safety of the equipment are greatly improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the following description is exemplary only, and is not intended to limit the invention to the following embodiments.

Fig. 1 is a schematic view of an installation structure of an external cable safety device provided by the present invention;

fig. 2 is a schematic view of an internal circuit connection of an external cable safety device according to the present invention;

fig. 3 is a schematic view of the overall structure of an external cable safety device provided by the present invention;

fig. 4 is a schematic side view of an external cable safety device provided by the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Referring to fig. 1-4, the present invention provides an external cable safety device 1, which is used to electrically connect the safety device connector 4 at the end of the cable 3 with the case 2 to realize the signal transmission between the case 2 and the cable 3, and the specific structure and working principle of the external cable safety device 1 are explained below.

The external cable safety device 1 comprises a cuboid shell 10, a pair of opposite surfaces on the shell 10 are opened to form a socket, the outer sides of the sockets on two sides of the shell 10 extend outwards to form a slot 14, and the slot 14 can be used as a guide structure to be inserted into a safety device connector 4 and a socket on a case 2 so as to ensure smooth connection and fixation; a circuit board 11 is arranged in the shell 10, N fuses 12 are arranged on the circuit board 11, and the fuses 12 prevent the current on each signal wire from being too large; n signal plugs 15 are respectively arranged in two slots 14 on the casing 10, each signal plug 15 is fixed on the circuit board 11 in a welding manner, a welding spot 13 is arranged between each fuse 12 and the corresponding signal plug 15, the welding spot 13 is arranged on the circuit board 11, each signal plug 15 is fixed at the corresponding welding spot 13, N signal plugs 15 in the sockets on two sides are correspondingly and electrically connected with the N fuses 12 one by one and are respectively inserted into the jacks on the case 2 and the jacks on the safety device connector 4 in a one-to-one correspondence manner, fixing columns 16 are outwards formed on two sides of the socket on the casing 10, and fixing holes 17 are formed in the fixing columns 16. The fixing posts 16 and the fixing holes 17 are connected with the through holes on the safety device connector 4 and the case 2 (screwed through the through holes and the fixing holes 17) to ensure that the connection is stable.

Through the stable electric connection of the external safety device 1 of the cable with the safety device connector 4 and the case 2, the smooth signal transmission between the cable 3 and the case 2 is ensured. When the current of each line is too large, the corresponding fuse 12 is blown out, preventing the device from being burned out.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The utility model provides an external safeties of cable for with terminal safeties connector (4) of cable (3) and quick-witted case (2) electricity be connected in order to realize quick-witted case (2) with signal transmission between cable (3), a serial communication port, including casing (10), a pair of opposite face opening on casing (10) is in order to form the socket, casing (10) embeds there is circuit board (11), it is provided with N fuse (12) to arrange on circuit board (11), two on casing (10) respectively be provided with N signal plug (15) in the socket, and both sides N in the socket signal plug (15) correspond with N fuse (12) electricity is connected one by one and the corresponding plug in jack on quick-witted case (2) respectively in the jack on the safeties connector (4).

2. The external cable safety device according to claim 1, wherein the outer side edges of the sockets on two sides of the housing (10) extend outwards to form slots (14).

3. The external cable safety device according to claim 1, wherein each signal plug (15) is fixed to the circuit board (11) by welding.

4. The external cable safety device according to claim 1, wherein a solder joint (13) is disposed between each fuse (12) and the corresponding signal plug (15), the solder joint (13) is disposed on the circuit board (11), and each signal plug (15) is fixed to the corresponding solder joint (13).

5. The external cable safety device according to claim 1, wherein fixing posts (16) are formed outwards on the housing (10) on two sides of the socket.

6. The external cable safety device according to claim 5, wherein the fixing post (16) is provided with a fixing hole (17).

7. The external cable safety device according to claim 1, wherein the housing (10) is rectangular parallelepiped.