CN217769388U

CN217769388U - Multi-channel sensor signal junction box with lightning protection function

Info

Publication number: CN217769388U
Application number: CN202221545257.1U
Authority: CN
Inventors: 陈锦云
Original assignee: Fuzhou Institute of Technology
Current assignee: Fuzhou Institute of Technology
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-11-08
Anticipated expiration: 2032-06-20

Abstract

The utility model relates to a sensor junction box technical field, a multichannel sensor signal junction box with lightning protection function, including the box body, be equipped with the circuit board in the box body, the box body outside can be dismantled and be connected with the lightning protection device, the box body comprises base and lid, and the base top is equipped with holds the chamber, holds the intracavity and is equipped with a plurality of first cylinders, and the first cylinder top is equipped with vertical screw hole and sealing washer, forms the flexible assembly structure between lid and the base; the base outside is equipped with the controller interface to and a plurality of sensor interface and lightning protection device interface. The utility model is helpful to solve the problems of simple structure, insufficient sealing performance and hidden fracture danger of the existing junction box body assembly; meanwhile, the lightning protection device has good lightning protection performance and plays a role in protecting the sensor.

Description

Multi-channel sensor signal junction box with lightning protection function

Technical Field

The utility model relates to a sensor junction box technical field especially relates to a multichannel sensor signal junction box with lightning protection function.

Background

No matter a common sensor on the market is an NPN type or a PNP type, an effective power supply needs to be provided in the using process, and after the sensor normally works and meets the set conditions, the sensor can transmit the sensed information to the controller in the form of an electric signal. Under the condition that the application scene is relatively complex, corresponding junction boxes are generally adopted to uniformly dredge and connect a plurality of sensors, and the junction boxes are also called junction boxes, and are powered on in a centralized manner during operation, so that a lightning protection device is required to be configured to protect the safety of the sensors.

For example, chinese patent CN200420015033.5 discloses a distribution board with a lightning protection device, which comprises a base and input and output terminals installed on two sides of the base, and is characterized in that the base is detachably installed with at least one lightning protection module connected with the input and output terminals. The junction box and the lightning protection module are skillfully integrated, so that the functions of the junction box are expanded, the structure is simplified, and the use safety and reliability of the junction box can be effectively ensured. However, the box structure is not elaborated in detail in the technical solution, but the box structure of the existing junction box is simple, the base and the cover are generally locked by screws, and the screw connection between the cover and the base is in rigid contact at present, and during assembly, the pneumatic screw gun often excessively screws the screws, so that the cover is deformed in a screw installation area, which affects the sealing performance of the box, and the stress in the area is easy to cause the breakage of the cover due to actions such as collision and the like in the use process.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a multi-channel sensor signal junction box with lightning protection function, which is helpful to solve the problems of simple assembly structure, insufficient sealing performance and hidden fracture danger of the existing junction box body; meanwhile, the lightning protection material has good lightning protection performance and plays a role in protecting the sensor.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a multi-channel sensor signal junction box with a lightning protection function comprises a box body, wherein a circuit board which can be electrically connected with each interface is arranged in the box body, a lightning protector is detachably connected to the outer side of the box body, the box body consists of a base and a cover body, a containing cavity is formed in the top of the base, a plurality of first cylinders are arranged in the containing cavity, vertical threaded holes are formed in the tops of the first cylinders, bosses are arranged on the outer edges of the tops of the threaded holes, a sunken table is formed on the outer sides of the tops of the first cylinders by the bosses, a sealing ring is arranged on the sunken table, and the thickness of the sealing ring is larger than the height of the sunken table;

the bottom of the cover body is attached to the top of the first cylinder and penetrates through the cover body to be matched with the threaded hole of the first cylinder through a fastener, and the sealing ring between the cover body and the base is compressed to form a flexible assembly structure between the cover body and the base;

the base outside is equipped with the controller interface to and a plurality of sensor interface and lightning protection device interface.

Preferably, hold the intracavity and be equipped with the second cylinder unanimous with first cylinder structure, first cylinder top is higher than the top of second cylinder, the circuit board is fixed at second cylinder top.

Preferably, the cover body is provided with indicator lights in one-to-one correspondence with the sensor interfaces, and one side of each indicator light is provided with a marking plate.

Preferably, a first supporting body with the same height as the second column body is further arranged in the accommodating cavity.

Preferably, the first supporting body comprises a vertical plate, side rib plates are arranged on two sides of the vertical plate, the middle parts of the side rib plates are concave, and an upper supporting part and a lower supporting part which are triangular are formed at the upper end and the lower end.

Preferably, a plurality of second supporting bodies with the same height as the first column bodies are arranged on the inner side wall of the accommodating cavity.

Preferably, a hanging part is arranged on the outer side of the base.

Preferably, the hanging member includes an extension plate, and the extension plate is provided with a hanging hole.

Preferably, the inner side wall of the hanging hole is provided with a wear-resistant rib plate, and the wear-resistant rib plate is a strip-shaped flange parallel to the axial direction of the hanging hole.

Preferably, the outer edge of the top of the hanging hole is provided with a reinforced boss, and the outer side of the reinforced boss is provided with a support rib plate.

Compared with the prior art, the utility model discloses at least, including following advantage:

1. the utility model discloses a set up dismantled and assembled lightning protection device for the deconcentrator possesses the lightning protection function, can play the guard action to the sensor.

2. The utility model discloses a set up first cylinder holding the intracavity, first cylinder top is through setting up the boss, and install the sealing washer in the boss outside, make after lid and the laminating of base, sealing washer between the two can play the effect of elastic support, and the cooperation through fastener and first cylinder, can lock lid and base, after the locking, the sealing washer is compressed, form flexible assembly structure between lid and the base, avoid if traditional rigid contact, easily cause lid deformation or cracked phenomenon because of excessive locking of fastener.

3. The utility model discloses a set up first supporter and second supporter, be used for the installation of supporting circuit board and lid respectively, and then promote the stability of its installation state, further reduce the hidden danger of discovery deformation.

4. The utility model discloses a set up the flying piece, utilize wear-resisting floor, reinforce boss and support rib plate's structural design, can reduce the volume thickness of flying piece, make full use of structure space uses convenience and durable degree for the product promotion.

Drawings

FIG. 1 is a schematic diagram of an exploded view of a junction box in one embodiment;

FIG. 2 is a schematic structural diagram of the base in FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2;

fig. 4 is a partially enlarged view of B in fig. 2.

The figure is marked with: 1. a base; 11. an accommodating chamber; 12. a controller interface; 13. a sensor interface; 14. a lightning protection device interface; 15. a first column; 16. a second cylinder; 17. a first support; 171. a vertical plate; 172. a side rib plate; 173. an upper support section; 174. a lower support section; 18. a second support; 19. a suspension member; 191. an extension plate; 192. hanging holes; 193. wear-resistant rib plates; 194. reinforcing the boss; 195. a support rib plate; 2. a cover body; 21. a lamp hole; 22. sinking a groove; 3. a circuit board; 4. a lightning protection device; 5. a lamp post; 6. a marking plate; 7. and (5) sealing rings.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The first embodiment is as follows:

referring to fig. 1 and fig. 2, the embodiment discloses a multi-channel sensor signal distribution box with lightning protection function, including a box body composed of a base 1 and a cover 2, a circuit board 3 capable of being electrically connected with each interface is arranged in the box body, and a lightning protection device 4 is detachably connected to the outer side of the box body, wherein the circuit board 3 is a simplified structure diagram, and the circuit board 3 and the lightning protection device 4 are prior art, and those skilled in the art can use the combination as required without creative labor, and the description is omitted here.

Further, 1 top of base is equipped with and holds chamber 11, holds the inboard corner in chamber 11 and supplies to be equipped with 4 first cylinders 15, and first cylinder 15 is used for connecting fixed lid 2. Specifically, a vertical internal thread hole is formed in the top of the first column body 15, a boss is arranged on the outer edge of the top of the internal thread hole, a sinking platform is formed on the outer side of the top of the first column body 15 through the boss, a sealing ring 7 is installed on the sinking platform, and the thickness of the sealing ring 7 is larger than the height of the sinking platform. When lid 2 and base 1 assemble, 2 bottom surfaces of lid butt at sealing washer 7 tops, lid 2 and the corresponding position of first cylinder 15 are equipped with the through-hole, the screw can wear to establish behind this through-hole with the internal thread hole cooperation on the first cylinder 15, after the screw locking, the interval diminishes between 2 bottom surfaces of lid and the 15 tops of first cylinder, compress sealing washer 7, consequently, because the existence of sealing washer 7, make and form flexible assembly structure between lid 2 and the base 1, avoid the rigid contact easy deformation or cracked phenomenon after the locking.

Further, the side wall of the base 1 is provided with 1 controller interface 12 and 10 sensor interfaces 13, the wiring of the sensor penetrates through the sensor interfaces 13, and the wiring for transmitting signals to the controller penetrates out of the controller interfaces 12. The rear side wall of the base 1 is provided with 10 lightning protection device interfaces 14 for installing the lightning protection device 4, and the lightning protection effect of each sensor loop device can be achieved according to the requirement.

The working principle is as follows: in this embodiment, each sensor interface 13 may be connected to one or two sensor connections, and is directly electrically connected to the circuit board 3, and is transmitted to the external controller through the controller interface 12 via a signal transmission line after being processed by the circuit system, and the lightning protection device 4 may perform actions such as current leakage to overvoltage current when the junction box is struck by lightning, so as to protect the sensors and other electronic components in the circuit from being damaged. And the boss, the sinking platform and the sealing ring 7 at the top of the first column body 15 can form a flexible assembly structure between the cover body 2 and the base 1, so that the phenomenon that rigid contact is easy to deform or break after locking is avoided.

Example two:

on the basis of the first embodiment, the accommodating cavity 11 is further provided with 2 second columns 16 distributed at intervals, the top structures of the second columns 16 are consistent with the top structure of the first column 15, and the height of the second columns 16 is smaller than that of the first column 15. The second post 16 is used for mounting and fixing the circuit board 3.

In order to improve the stability of the installation state of the circuit board 3, a first support 17 having the same height as the second column 16 is further disposed in the accommodating chamber 11. Specifically, in the present embodiment, there are two first supporting bodies 17 distributed at intervals, the two first supporting bodies 17 are located in the area between the two second supporting bodies 16, the first supporting body 17 includes a vertical plate 171, side ribs 172 are disposed on two sides of the vertical plate 171, the middle of the side ribs 172 is recessed, and an upper supporting portion 173 and a lower supporting portion 174 which form a triangle at two upper and lower ends are formed. The bottom of the vertical plate 171 and the bottom of the lower support 174 are fixedly connected to the bottom of the accommodating cavity 11, and the top of the vertical plate 171 and the top of the upper support 173 are used for abutting against the bottom surface of the circuit board 3 to support the circuit board 3.

Example three:

on the basis of the second embodiment, in order to improve the stability of the installation state of the cover body 2, a plurality of vertical second supporting bodies 18 are uniformly arranged on the inner side wall of the accommodating cavity 11, the second supporting bodies 18 have the same height as the first column body 15, and after the cover body 2 is locked, the second supporting bodies 18 can play a role in assisting in supporting the edges of each area of the cover body 2.

Example four:

on the basis of the third embodiment, 10 indicator lights corresponding to the sensor interfaces 13 are arranged on the top surface of the cover body 2, each indicator light includes a light hole 21 and a light post 5, the light posts 5 are electrically connected with the circuit board 3, and when the sensor interfaces 13 are switched on, the corresponding light posts 5 and light holes 21 emit light, that is, the indicator lights at the positions become bright, so as to prompt the working states of the sensor interfaces 13.

Furthermore, in order to distinguish the source of each sensor interface 13, a sunken groove 22 is formed in the top surface of the cover body 2 on one side of each indicator light, a marking plate 6 is detachably arranged in the sunken groove 22, and writing or pasting of corresponding information on the marking plate 6 can be carried out.

Example five:

on the basis of the fourth embodiment, in order to improve the convenience of using the junction box, the junction box can be suspended in the using process, concave structures are arranged at two outer corners of one side of the base 1, suspension parts 19 are arranged at the concave structures, each suspension part 19 comprises an extension plate 191, and a hanging hole 192 is formed in each extension plate 191. The inner side wall of the hanging hole 192 is provided with wear-resistant ribbed plates 193, and the wear-resistant ribbed plates 193 are strip-shaped flanges parallel to the axial direction of the hanging hole 192. The outer edge of the top of the hanging hole 192 is provided with a reinforced boss 194, and the outer side of the reinforced boss 194 is provided with a support rib plate 195. By utilizing the structural design of the wear-resistant rib 193, the reinforcing boss 194 and the supporting rib 195, the volume thickness of the hanging piece 19 can be reduced, the structural space is fully utilized, and the use convenience and the durability of the product are improved.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-channel sensor signal junction box with a lightning protection function comprises a box body, wherein a circuit board (3) which can be electrically connected with each interface is arranged in the box body, and a lightning protector (4) is detachably connected to the outer side of the box body, and is characterized in that the box body consists of a base (1) and a cover body (2), a containing cavity (11) is arranged at the top of the base (1), a plurality of first cylinders (15) are arranged in the containing cavity (11), vertical threaded holes are formed in the tops of the first cylinders (15), bosses are arranged on the outer edges of the tops of the threaded holes, a sinking platform is formed on the outer side of the top of each first cylinder (15) by the bosses, a sealing ring (7) is arranged on the sinking platform, and the thickness of the sealing ring (7) is larger than the height of the sinking platform;

the bottom of the cover body (2) is attached to the top of the first cylinder (15), and penetrates through the cover body (2) through a fastener to be matched with a threaded hole of the first cylinder (15), and the sealing ring (7) between the cover body (2) and the base (1) is compressed to form a flexible assembly structure between the cover body (2) and the base (1);

the outer side of the base (1) is provided with a controller interface (12), a plurality of sensor interfaces (13) and a lightning protection device interface (14).

2. The multi-sensor signal distribution box with the lightning protection function according to claim 1, wherein a second column (16) is arranged in the accommodating cavity (11) and has a structure consistent with that of the first column (15), the top end of the first column (15) is higher than that of the second column (16), and the circuit board (3) is fixed on the top of the second column (16).

3. The multi-sensor signal distribution box with the lightning protection function according to claim 2, wherein indicator lights corresponding to the sensor interfaces (13) one to one are arranged on the cover body (2), and a marking plate (6) is arranged on one side of each indicator light.

4. The multiple sensor signal distribution box with lightning protection function according to claim 2, characterized in that a first support (17) having the same height as the second column (16) is further provided in the accommodating cavity (11).

5. The multi-sensor signal distribution box with the lightning protection function according to claim 4, wherein the first support (17) comprises a vertical plate (171), side ribs (172) are arranged on two sides of the vertical plate (171), the middle parts of the side ribs (172) are recessed, and an upper support part (173) and a lower support part (174) which form a triangle at the upper end and the lower end are formed.

6. The multiple sensor signal distribution box with the lightning protection function according to claim 1 or 5, characterized in that a plurality of second supporting bodies (18) which are as high as the first columns (15) are arranged on the inner side wall of the accommodating cavity (11).

7. The multiple sensor signal distribution box with lightning protection function according to claim 1, characterized in that the base (1) is provided with a suspension member (19) on the outside.

8. The multiple-sensor signal distribution box with lightning protection function of claim 7, wherein the suspension member (19) comprises an extension plate (191), and the extension plate (191) is provided with a hanging hole (192).

9. The multiple sensor signal distribution box with lightning protection function according to claim 8, wherein the inner side wall of the hanging hole (192) is provided with wear-resistant ribs (193), and the wear-resistant ribs (193) are strip-shaped flanges parallel to the axial direction of the hanging hole (192).

10. The multi-sensor signal distribution box with the lightning protection function according to claim 9, wherein a reinforced boss (194) is disposed at the outer edge of the top of the hanging hole (192), and a support rib plate (195) is disposed outside the reinforced boss (194).