CN212137279U

CN212137279U - Surge protector

Info

Publication number: CN212137279U
Application number: CN202020774000.8U
Authority: CN
Inventors: 何飞
Original assignee: Shenzhen Putai Electrical Co ltd
Current assignee: Shenzhen Putai Electrical Co ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2020-12-11
Anticipated expiration: 2030-05-11

Abstract

The utility model provides a surge protector, which comprises a shell, a surge relief device and a plurality of electrodes, wherein the shell comprises a base and an upper shell covered on the base, and the surge relief device is arranged in the shell; all the electrodes are in conductive connection with the surge relief device and are led out from the base; wherein, a supporting frame is also arranged in the shell; the supporting frame is vertically arranged on the base; the supporting frame comprises a side wall and end walls positioned at the upper end and the lower end of the side wall; the side wall and the end wall enclose a containing groove; surge relief device inlays in the holding tank. The utility model provides a surge protector, the end wall of support frame are located the upper and lower both ends of lateral wall, enable the both ends wall of surge bleeder mechanism and support frame and stack along upper and lower direction to surge protector's height has been improved, so that when using surge protector, separate the components and parts that are located surge protector both sides completely through surge protector, prevent the electromagnetic field that these two components and parts produced to influence each other.

Description

Surge protector

Technical Field

The utility model belongs to the technical field of the overvoltage protection, more specifically say, relate to a surge protector.

Background

Over-voltage caused by lightning strike induction, capacitive load switching on, inductive load switching off and the like is often encountered in power systems, and the over-voltage can cause damage to electric equipment. Surge Protection Devices (SPDs), commonly known as lightning protectors, are usually connected in parallel with electrical equipment in a circuit, and the voltage sensitive characteristics of the SPDs are used to protect the electrical equipment from various overvoltage damages, especially expensive, precise and uninterruptable electrical equipment, such as communication base station rooms, financial systems, stock exchange systems, high-value electrical equipment and other electrical related equipment and systems, and the surge protection devices are used to protect the equipment and systems from transient overvoltage caused by lightning or other reasons.

Referring to fig. 1, a gap-type horizontal surge protection device 10' in the prior art includes a housing, a support frame and a surge relief device, the support frame and the surge relief device are respectively disposed in the housing, the support frame includes a side wall and two end walls disposed at two ends of the side wall along a horizontal direction, the side wall and the two end walls enclose to form an accommodation groove, and the surge relief device is embedded in the accommodation groove (not shown in the figure); when the horizontal surge protector 10 ' is used, the horizontal surge protector 10 ' needs to be inserted into the insertion base 20, the insertion base 20 is provided with a plurality of components 30, and two end walls of the horizontal surge protector 10 ' are arranged at two ends of the side wall along the horizontal direction, so that the bottom area of the horizontal surge protector 10 ' is large, the height of the horizontal surge protector is low, and the components 30 at two sides of the horizontal surge protector cannot be completely separated, so that the components 30 at one side of the horizontal surge protector 10 ' can directly radiate and interfere with the components 30 at the other side of the horizontal surge protector 10 ', and therefore Electromagnetic Interference (namely, EMI for short) between the components 30 at two sides of the horizontal surge protector 10 ' is strong, and the circuit performance is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a surge protector to solve the strong technical problem of electromagnetic interference between two components and parts that exist among the prior art.

In order to achieve the above object, the utility model adopts the following technical scheme: the surge protector comprises a shell, a surge relief device and a plurality of electrodes, wherein the shell comprises a base and an upper shell covered on the base, and the surge relief device is arranged in the shell; all the electrodes are in conductive connection with the surge relief device and are led out of the base;

wherein, a supporting frame is also arranged in the shell; the supporting frame is vertically arranged on the base;

the supporting frame comprises a side wall and end walls positioned at the upper end and the lower end of the side wall; the side wall and the end wall enclose a containing groove;

the surge relief device is embedded in the accommodating groove.

Further, surge bleeder mechanism includes that vertical PCB board and the interval of establishing are located a plurality of graphite flakes on the PCB board, all the graphite flake is located same side of PCB board is located in the holding tank.

Further, the surge relief device still includes a plurality of insulating pieces, arbitrary adjacent two all be equipped with between the graphite flake the insulating piece.

Further, the upper and lower both ends of insulating piece respectively with the laminating of the upper and lower inner wall of holding tank.

Furthermore, the support frame is provided with a first positioning groove for positioning the graphite sheet, and the graphite sheet can be inserted into the first positioning groove.

Furthermore, be equipped with a plurality of first draw-in grooves on the PCB board, all be equipped with on the electrode with first card that first draw-in groove corresponds is protruding, first card protruding can the joint in first draw-in groove.

Further, the device also comprises a screw;

the end part of the support frame is provided with a first fixing hole, part of the electrodes are provided with a second fixing hole corresponding to the first fixing hole, and the screw penetrates through the second fixing hole and extends into the first fixing hole so as to fix the electrodes on the support frame;

the rest electrodes are clamped on the support frame.

Further, the shell comprises an upper shell and a base which is covered with the upper shell;

the electrode assembly comprises an upper shell, a base and a base, and is characterized in that a second clamping groove is formed in the upper shell, a second clamping protrusion and a through hole are formed in the base, the second clamping protrusion can be clamped in the second clamping groove, and the electrode can stretch out of the through hole.

Further, the outer wall of the upper end of the base inclines outwards from top to bottom.

Furthermore, one side of the base is provided with a second positioning groove, and the PCB can be inserted into the second positioning groove.

The utility model provides a surge protector's beneficial effect lies in: compared with the prior art, the shell of the surge protector is used for protecting the surge relief device and preventing the short circuit between the surge relief device and the outside; the support frame is arranged in the shell and used for supporting and positioning the surge relief device so as to avoid collision between the surge relief device and the shell; the supporting frame comprises a side wall and end walls positioned at the upper end and the lower end of the side wall, the side wall and the end walls enclose a containing groove, and the surge relief device is embedded in the containing groove so as to reduce the total volume occupied by the surge relief device and the supporting frame and further reduce the volume of the surge protector; the both ends wall and the surge bleeder mechanism of support frame stack along upper and lower direction to increase the overall height of surge bleeder mechanism and support frame, thereby improved surge protector's height, so that when pegging graft surge protector in the plug socket use, surge protector can separate the components and parts of installing on the plug socket that are located its both sides completely, avoid directly producing the radiation interference between the components and parts that are located the surge protector both sides, with the electromagnetic interference in the reduction circuit, improve circuit performance.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic diagram of a structure of a horizontal surge protector in the prior art;

fig. 2 is a schematic view of a usage structure of a surge protector according to an embodiment of the present invention;

fig. 3 is a schematic structural view of the surge protector device of fig. 2;

fig. 4 is an exploded view of the surge protector device of fig. 3;

FIG. 5 is a schematic view of a portion of the structure of FIG. 4;

fig. 6 is a schematic structural view of the surge relief apparatus of fig. 4;

FIG. 7 is a schematic structural view of the supporting frame in FIG. 4;

fig. 8 is a schematic structural diagram of the base in fig. 4.

Wherein, in the figures, the respective reference numerals:

1. a housing; 11. an upper shell; 111. a second card slot; 12. a base; 121. a second snap projection; 122. a through hole; 123. a second positioning groove; 2. a surge relief device; 21. a PCB board; 211. a first card slot; 22. a graphite sheet; 23. an insulating sheet; 3. an electrode; 31. a first snap projection; 32. a second fixing hole; 4. a support frame; 41. accommodating grooves; 411. a side wall; 412. an end wall; 42. a first positioning groove; 43. a first fixing hole; 5. a screw; 10', a horizontal surge protector; 10. a surge protector; 20. a socket; 30. and (6) a component.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 2 to 4 and fig. 7, the surge protector provided by the present invention will now be described. The surge protector comprises a shell 1, a surge relief device 2, a support frame 4 and a plurality of electrodes 3, wherein the shell 1 comprises a base 12 and an upper shell 11 which is covered on the base 12, and the surge relief device 2 is arranged in the shell 1; all the electrodes 3 are in conductive connection with the surge relief device 2 and are led out from the base 12;

wherein, a supporting frame 4 is also arranged in the shell 1; the supporting frame 4 is vertically arranged on the base 12;

the supporting frame 4 comprises a side wall 411 and end walls 412 positioned at the upper end and the lower end of the side wall 411; the side wall 411 and the end wall 412 define a receiving slot 41;

the surge relief device 2 is fitted in the accommodation groove 41.

Compared with the prior art, the surge protector provided by the utility model has the advantages that the shell 1 is used for protecting the surge relief device 2 and preventing the short circuit between the surge relief device 2 and the outside; the support frame 4 is arranged in the shell 1 and used for supporting and positioning the surge relief device 2 and avoiding collision between the surge relief device 2 and the shell 1; the supporting frame 4 comprises a side wall 411 and end walls 412 positioned at the upper end and the lower end of the side wall 411, the side wall 411 and the end walls 412 define a containing groove 41, the surge relief device 2 is embedded in the containing groove 41 to reduce the total volume occupied by the surge relief device 2 and the supporting frame 4, so that the volume of the surge protector 10 is reduced; the two end walls 412 of the support frame 4 are stacked with the surge relief device 2 along the up-down direction to increase the total height of the surge relief device 2 and the support frame 4, so that the height of the surge protector 10 is increased, when the surge protector 10 is inserted into the socket 20 for use, the surge protector 10 can completely separate the components 30 which are positioned at the two sides of the surge protector 10 and are arranged on the socket 20, and the components 30 which are positioned at the two sides of the surge protector 10 are prevented from directly generating radiation interference, so that the electromagnetic interference in a circuit is reduced, and the circuit performance is improved; because surge relief device 2 inlays in holding tank 41, end wall 412 is located the upper and lower both ends of lateral wall 411, compares in the scheme that end wall 412 is located the horizontal both ends of lateral wall 411, and the projected area of support frame 4 and surge relief device 2 in the horizontal plane is littleer for surge protector 10 covers the area of bayonet socket 20 littleer, is favorable to the heat dissipation of bayonet socket 20.

Further, please refer to fig. 4 to fig. 6, as a specific embodiment of the surge protection device provided by the present invention, the surge relief device 2 includes a vertically erected PCB 21 and a plurality of graphite sheets 22 disposed on the PCB 21 at intervals, all the graphite sheets 22 are disposed on the same side of the PCB 21 and disposed in the accommodating groove 41, and the surge can be relieved through the graphite gap structure; and the installation position of the graphite sheet 22 can improve the assembly efficiency of the PCB board 21 and the graphite sheet 22, and reduce the contact of graphite and outside air, thereby improving the performance of the surge protector 10.

Further, please refer to fig. 6, as a specific embodiment of the surge protection device provided by the present invention, the surge relief device 2 further includes a plurality of insulating sheets 23, and the insulating sheets 23 are disposed between any two adjacent graphite sheets 22, so as to prevent the short circuit between two adjacent graphite sheets 22 from affecting the surge relief capability.

Further, please refer to fig. 6 and fig. 7, as a specific embodiment of the surge protector provided by the present invention, the upper and lower ends of the insulating sheet 23 are respectively attached to the upper and lower inner walls of the accommodating tank 41, so as to shield the graphite sheet 22 as much as possible through the inner walls of the insulating sheet 23 and the accommodating tank 41, thereby reducing the exposed area of the graphite sheet 22, and further reducing the influence of the external environment on the graphite sheet 22.

Further, please refer to fig. 6 and fig. 7, as a specific embodiment of the surge protection device provided by the present invention, the supporting frame 4 is provided with a first positioning groove 42 for positioning the graphite sheet 22, and the graphite sheet 22 can be inserted into the first positioning groove 42, so as to quickly position and install the graphite sheet 22, reduce the installation time of the graphite sheet 22, and improve the installation efficiency of the surge relief device 2 on the supporting frame 4.

Further, please refer to fig. 5 and fig. 6, as the utility model provides a surge protector's a specific implementation, be equipped with a plurality of first draw-in grooves 211 on the PCB board 21, all be equipped with the first card that corresponds with first draw-in groove 211 on all electrodes 3 protruding 31, first card is protruding 31 can the joint in first draw-in groove 211 to with electrode 3 and PCB board 21 joint, with PCB board 21 and external circuit intercommunication, improve electrode 3 and PCB board 21's packaging efficiency, still conveniently dismantle and maintain simultaneously.

Further, please refer to fig. 4 and fig. 7, which are specific embodiments of the surge protection device of the present invention, further including a screw 5;

the end part of the support frame 4 is provided with a first fixing hole 43, part of the electrodes 3 are provided with second fixing holes 32 corresponding to the first fixing holes 43, the screws 5 penetrate through the second fixing holes 32 and extend into the first fixing holes 43 so as to fix the electrodes 3 on the support frame 4, and the electrodes 3 are fixed by the screws 5, so that the electrode fixing device is low in cost, convenient to assemble, disassemble and convenient to replace and maintain;

the residual electrode 3 is clamped on the support frame 4, the electrode 3 is fixed through the support frame 4, the structure is simple, the assembly efficiency is high, and the safety performance is good after the assembly.

Further, please refer to fig. 4, fig. 7 and fig. 8, as a specific embodiment of the surge protection device provided by the present invention, the second slot 111 is disposed on the upper case 11, the second protrusion 121 and the through hole 122 are disposed on the base 12, the second protrusion 121 can be connected to the second slot 111, the electrode 3 can be extended from the through hole 122, and is connected to the upper case 11 through the base 12, so as to simplify the structure, save the assembling time, improve the assembling efficiency, and facilitate the disassembling.

Further, please refer to fig. 8, as the utility model provides a surge protector's a specific implementation, the outer wall of base 12 upper end is from the top down slope outwards, has certain guide effect, and convenience of customers is through the mode of pressing with epitheca 11 and base 12 joint to the packaging efficiency of epitheca 11 with base 12 has been improved.

Further, please refer to fig. 6 and 8, as a specific implementation manner of the surge protection device provided by the present invention, one side of the base 12 is provided with the second positioning groove 123, the PCB 21 can be inserted into the second positioning groove 123, so that the base 12 has a fool-proof function, if the PCB 21 is not aligned to the second positioning groove 123, the base 12 cannot be covered with the upper case 11, which indicates that the base 12 is reversed, and reminds the user to change the direction, so as to cover the base 12 and the upper case 11.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Surge protection device, including casing, surge bleeder mechanism and a plurality of electrode, its characterized in that: the shell comprises a base and an upper shell covering the base, and the surge relief device is arranged in the shell; all the electrodes are in conductive connection with the surge relief device and are led out of the base;

the surge relief device is embedded in the accommodating groove.

2. A surge protector device as claimed in claim 1, wherein: surge bleeder mechanism includes that vertical PCB board and the interval of establishing are located a plurality of graphite flakes on the PCB board, all the graphite flake is located same side of PCB board is located in the holding tank.

3. A surge protector device as claimed in claim 2, wherein: the surge relief device still includes a plurality of insulating pieces, arbitrary adjacent two all be equipped with between the graphite flake the insulating piece.

4. A surge protector as claimed in claim 3, wherein: the upper and lower both ends of insulating piece respectively with the laminating of the upper and lower inner wall of holding tank.

5. A surge protector device as claimed in claim 2, wherein: the support frame is provided with a first positioning groove for positioning the graphite sheet, and the graphite sheet can be inserted into the first positioning groove.

6. A surge protector device as claimed in claim 2, wherein: the PCB is provided with a plurality of first clamping grooves, all the electrodes are provided with first clamping protrusions corresponding to the first clamping grooves, and the first clamping protrusions can be clamped in the first clamping grooves.

7. A surge protector device as defined in claim 6, wherein: the screw is also included;

the rest electrodes are clamped on the support frame.

8. A surge protector device as claimed in claim 2, wherein: the electrode assembly comprises an upper shell, a base and a base, and is characterized in that a second clamping groove is formed in the upper shell, a second clamping protrusion and a through hole are formed in the base, the second clamping protrusion can be clamped in the second clamping groove, and the electrode can stretch out of the through hole.

9. A surge protector device as defined in claim 8, wherein: the outer wall of the upper end of the base inclines outwards from top to bottom.

10. A surge protector device as defined in claim 8, wherein: one side of base is equipped with the second constant head tank, the PCB board can insert in the second constant head tank.