CN112436302B

CN112436302B - Modular electrical protection shell structure

Info

Publication number: CN112436302B
Application number: CN202010409575.4A
Authority: CN
Inventors: 张陇林; 苏国俊; 杨红艳; 畅云鹏
Original assignee: Zhejiang Hume Electric Co ltd
Current assignee: Zhejiang Hume Electric Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2022-04-22
Anticipated expiration: 2040-05-14
Also published as: CN112436302A

Abstract

The invention relates to the technical field of electrical equipment, in particular to a modular electrical protection shell structure which comprises a shell main body, wherein the shell main body is formed by splicing a panel, a left side plate, a right side plate, a bottom plate and an upper wiring assembly and a lower wiring assembly, at least two adjacent upper wiring assemblies which are spliced through connecting strips are arranged between the left side plate and the right side plate, and the upper wiring assembly and the lower wiring assembly are of symmetrical structures; the bottom plate includes the bottom subassembly, is equipped with first side connecting portion, first inner face connecting portion, first side spread groove and first inner face spread groove on it, and the upper and lower part side of bottom subassembly all is equipped with first side connecting portion and first side spread groove, and first inner face connecting portion and first inner face spread groove all are located bottom subassembly internal surface, and first side spread groove is located first side connecting portion left side, and first inner face spread groove is located first inner face connecting portion left side, both one-to-one. The invention realizes flexible expansion of the inner volume of the shell, can correspond to circuit boards and circuit components with more specifications and sizes, and saves resources.

Description

Modular electrical protection shell structure

Technical Field

The invention relates to the technical field of electrical equipment, in particular to a modular electrical protection shell structure.

Background

Electrical devices used in industry or power systems, such as electrical equipment including relays, protection devices, etc., generally employ an electrical protection housing made of insulating materials such as plastics to encapsulate electronic components and circuit boards therein, so as to protect electronic circuits.

Once the traditional electric protection shell is manufactured and molded, the structure of the traditional electric protection shell can not be changed. The protective shells are designed and manufactured in a matched mode for the packaged electronic circuit and correspond to each other one by one. During manufacturing, the electronic circuit components can be manufactured in a matching way only after the electronic circuit is designed and manufactured or after the size of the electronic circuit components is determined, or the electronic circuit components are designed and manufactured after the protective shell is manufactured, so that the manufacturing and the use of the electronic circuit components are mutually restricted. When the circuit function changes and the circuit part needs to be enlarged, the original shell is abandoned and needs to be opened again, thus causing resource waste.

Disclosure of Invention

The present invention aims to provide a modular electrical protection housing structure that can be expanded indefinitely to solve the above technical problems.

The technical problem solved by the invention can be realized by adopting the following technical scheme:

a modularized electric protection shell structure comprises a shell main body, wherein the shell main body is formed by splicing a panel positioned on the front side, a left side plate positioned on the left side, a right side plate positioned on the right side, a bottom plate positioned on the back side, an upper wiring assembly positioned above and a lower wiring assembly positioned below, a circuit board is arranged in an inner cavity of the shell main body, at least two adjacent upper wiring assemblies are arranged between the left side plate and the right side plate along the left-right direction, the at least two adjacent upper wiring assemblies on the left side and the right side are spliced with each other through a connecting strip, and the lower wiring assemblies and the upper wiring assemblies are of symmetrical structures and are in one-to-one correspondence;

the bottom plate comprises a bottom component, the bottom component is provided with a first side connecting part, a first inner face connecting part, a first side connecting groove and a first inner face connecting groove, the upper side edge and the lower side edge of the bottom component are respectively provided with the first side edge connecting part and the first side edge connecting groove, the first inner face connecting part and the first inner face connecting groove are both positioned on the inner surface of the bottom component, the first side edge connecting groove is positioned on the left side of the first side edge connecting part, the first inner face connecting groove is positioned on the left side of the first inner face connecting part, the first side connecting part and the first inner face connecting part extend out rightwards, a second side connecting groove matched with the first side connecting part and a second inner connecting groove matched with the first inner connecting part are arranged on the right side plate, and a second side edge connecting part matched with the first side edge connecting groove and a second inner face connecting part matched with the first inner face connecting groove are arranged on the left side plate.

The invention realizes the modularization of the electrical protection shell structure, and realizes the expansion of the panel in the left and right directions and the corresponding expansion of the bottom plate through the upper wiring component and the bottom component, thereby enabling the shell structure to be flexible in volume change so as to meet various actual production requirements.

In some possible embodiments, two ends of the connecting strip are respectively provided with a barb;

a positioning plug board extending backwards is arranged on the connecting strip, and a positioning groove is formed in the inner surface of one of the upper wiring components corresponding to the positioning plug board;

the lower wiring assembly and the upper wiring assembly are of symmetrical structures and are in one-to-one correspondence.

In some possible preferred embodiments, two positioning insertion plates are symmetrically arranged on the connecting strip left and right, and positioning grooves matched with the positioning insertion plates are respectively arranged on the inner surfaces of the two upper wiring components which are correspondingly adjacent left and right;

bearing structures which are convenient for supporting and fixing the circuit board are arranged on the left side plate and the right side plate, and the bearing structures are plate-shaped structures protruding from the left side plate and the right side plate;

the left side board with all be equipped with the joint of being convenient for on the right side board the joint spare of circuit board, arbitrary the joint spare all bulge in the left side board perhaps on the right side board, and be located its end and be equipped with barb structure.

In some possible preferred embodiments, the outer surfaces of the upper wiring assembly and the lower wiring assembly are respectively provided with a clamping plate protruding outwards, the bottom plate is provided with clamping grooves for clamping all the upper wiring assembly and the lower wiring assembly, and the clamping plates are clamped into the clamping grooves to realize the clamping connection of the upper wiring assembly and the bottom plate as well as the clamping connection of the lower wiring assembly and the bottom plate;

the bottom plate is provided with an ear plate vertical to the inner surface of the bottom plate, the lower surface of the ear plate positioned on the side edge of the upper part of the bottom plate is provided with a clamping groove convenient for clamping the upper wiring component, and the upper surface of the ear plate positioned on the side edge of the lower part of the bottom plate is provided with a clamping groove convenient for clamping the lower wiring component;

the left side and the right side of the inner surface of any one upper wiring assembly are provided with depressions, after the left and the right adjacent upper wiring assemblies are spliced, the adjacent depressions are spliced to form a groove, a lug is arranged on the connecting strip corresponding to the groove, and when the connecting strip is connected with the two left and the right adjacent upper wiring assemblies, the lug is clamped in the groove;

the left side and the right side of the inner surface of the left lower wiring component and the right lower wiring component which are adjacent are also provided with a concave structure which is convenient for forming another groove when the left lower wiring component and the right lower wiring component are spliced.

In some possible preferred embodiments, at least two adjacent upper wiring assemblies are arranged between the bottom plate and the panel along the front-back direction, the at least two adjacent upper wiring assemblies are spliced with each other in the front-back direction, a clamping plate is arranged on the outer surface of each upper wiring assembly, a clamping groove is arranged on the inner surface of each upper wiring assembly, the clamping grooves and the clamping plates are in a one-to-one correspondence structure, another clamping groove structure corresponding to the clamping plates is also arranged on the bottom plate, the upper wiring assembly located at the forefront is clamped into the clamping grooves of the inner surface of the upper wiring assembly located at the rear side and adjacent to the upper wiring assembly through the clamping plate on the outer surface, and the upper wiring assembly located at the rearmost is clamped into the clamping grooves on the bottom plate through the clamping plate on the outer surface.

In some possible embodiments, the upper wiring assembly includes an upper panel assembly located at an upper side of the fixed terminal assembly, the upper panel assembly including an upper end panel, a movable terminal block, a movable terminal, and a bolt, and a fixed terminal assembly including a fixed terminal and a fixed terminal block;

the fixed terminal is arranged in the fixed terminal seat, the front end of the fixed terminal is embedded into the fixed terminal seat, the rear end of the fixed terminal passes through the rear end face of the fixed terminal seat backwards, a first electrical connecting hole is formed in the fixed terminal seat, and a protruding end protruding upwards is arranged on the fixed terminal;

the front end of the movable terminal is arranged on the front side of the movable terminal seat through a bolt, the rear end of the movable terminal is positioned in a second electrical connecting hole arranged on the movable terminal seat, the protruding end of the fixed terminal penetrates through the first electrical connecting hole and then is positioned on the rear side of the rear end of the movable terminal in the second electrical connecting hole, the bolt is screwed in and screwed out of the movable terminal seat to drive the movable terminal to do reciprocating motion in the front-back direction, and a bolt hole and a third electrical connecting hole are further formed in the upper end panel;

and the fixed terminal seat is provided with a boss protruding upwards.

In some possible preferred embodiments, the fixed terminal is provided with a fixed terminal hole, and the left side surface and/or the right side surface of the fixed terminal is provided with a saw-toothed structure;

the outer surface of the protruding end of the fixed terminal is provided with a groove structure.

In some possible preferred embodiments, the lower portion of the fixed terminal is provided with a bend, the bend is parallel to the protruding end, and the length of the bend is smaller than the protruding length of the protruding end.

In some possible preferred embodiments, the bottom plate comprises at least two bottom modules, and the adjacent bottom modules are mutually inserted with the first side connecting groove and the first inner connecting groove on the bottom module on the right side through the first side connecting part and the first inner connecting part on the bottom module on the left side;

the bottom assembly positioned at the leftmost side is spliced with the second side edge connecting part and the second inner surface connecting part of the left side plate through the first side edge connecting groove and the first inner surface connecting groove of the bottom assembly;

the bottom assembly located on the rightmost side is connected with the second side edge connecting groove and the second inner face connecting groove of the right side plate in an inserting mode through the first side edge connecting portion and the first inner face connecting portion of the bottom assembly.

In some possible preferred embodiments, the outer surface of the bottom component is provided with a mounting groove for facilitating mounting of the rail connecting buckle, the mounting groove comprises a left mounting groove part and a right mounting groove part, the left mounting groove part is positioned on the left side of the outer surface of the bottom component, the right mounting groove part is positioned on the right side of the outer surface of the bottom component, and the rail connecting buckle is placed in a gap between the left mounting groove part and the right mounting groove part;

the mounting groove left part is equipped with the fluting to the right, the mounting groove right part is equipped with the fluting to the left, and two liang of the two are relative.

Has the advantages that: by adopting the technical scheme, the expansion of the volume in the shell is realized by adding the upper wiring assembly and the lower wiring assembly, the corresponding expansion of the bottom plate is realized by the bottom assembly during the expansion, and the whole size of the product can be expanded according to actual requirements only by manufacturing panels with different specifications in advance according to the whole size after the upper wiring assembly and the lower wiring assembly are spliced, so that the volume of an inner cavity is expanded, the circuit boards and circuit components with more specifications and sizes are corresponded, the problems of long development period, large investment and waste practice caused by redesigning the shell and re-opening the die due to the expansion of an internal circuit are avoided, resources are saved, and the product cost investment is saved for enterprises.

Drawings

FIG. 1 is a schematic view of an overall structure of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1, viewed from the bottom plane to the face plane;

FIG. 3 is a schematic view of a splice structure of adjacent upper wiring assemblies in the present invention;

FIG. 4 is a schematic view of a splicing structure of adjacent lower wiring assemblies in the present invention

FIG. 5 is a schematic illustration of the two-layer connection structure according to the present invention;

FIG. 6 is a schematic view of a configuration of the upper surface of the base assembly of the present invention;

FIG. 7 is a schematic view of a lower surface of the foot assembly of the present invention;

FIG. 8 is a schematic view of a right side plate according to the present invention;

FIG. 9 is a schematic view of a left side plate according to the present invention;

FIG. 10 is a schematic view of a structure of the connecting strip of the present invention;

FIG. 11 is a schematic view of the bottom surface of a base plate having four base assembly tiles of the present invention;

FIG. 12 is a schematic view of one construction of the upper wiring assembly of the present invention;

FIG. 13 is a schematic illustration of an application scenario of FIG. 12;

fig. 14 is a first structural view of the fixed terminal of fig. 12;

fig. 15 is a second structural diagram of the fixed terminal in fig. 12.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific drawings. It is noted that the terms "first," "second," "third," "fourth," and the like (if any) in the description and in the claims of the invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises" or "comprising," and any variations thereof, are intended to cover non-exclusive inclusions, such that a product or apparatus that comprises a list of elements or units is not necessarily limited to those elements or units expressly listed, but may include other elements or units not expressly listed or inherent to such product or apparatus.

Referring to fig. 1 and 2, a modular electric protection shell structure comprises a shell main body, wherein the shell main body is formed by splicing a panel 10 positioned on the front side, a left side plate 20 positioned on the left side, a right side plate 30 positioned on the right side, a bottom plate 40 positioned on the back side, an upper wiring assembly 50 positioned above and a lower wiring assembly 60 positioned below, a circuit board is arranged in an inner cavity of the shell main body, and a knob hole site 101 and an indicator light hole site 102 are arranged on the panel 10 and are respectively used for exposing an adjusting knob and setting a guide rod of an indicator light. As shown in fig. 1, 2, 3, and 4, at least two adjacent upper wiring assemblies 50 are disposed between the left side plate 20 and the right side plate 30 along the left-right direction, the adjacent upper wiring assemblies 50 are spliced together by a connection strip 70, as shown in fig. 3, 4, and 5, the connection strip 70 splices the upper wiring assembly 501 on the left side and the upper wiring assembly 502 on the right side together, the upper wiring assembly 502 is hidden in fig. 5 for clarity of observation, and a part of the structure of the connection strip 70 that should be embedded in the upper wiring assembly 502 is exposed, and it can be seen that, when the upper wiring assemblies are in a multi-layer structure, the adjacent upper wiring assemblies on the same layer are connected to each other by a connection strip 70. The lower wiring assemblies and the upper wiring assemblies are of symmetrical structures, and the adjacent lower wiring assemblies are also connected with each other through another group of connecting strips corresponding to the connecting strips 70.

As shown in fig. 2, 6 and 7, the bottom plate 40 includes a bottom member, the bottom member is provided with a first side connecting portion 401, a first inner face connecting portion 402, a first side connecting groove 411 and a first inner face connecting groove 412, and the top side and the bottom side of the bottom member are provided with a first side connecting portion 401 and a first side connecting groove 411. The first inner face coupling portion 402 and the first inner face coupling groove 412 are both located on the inner surface of the bottom member.

In the structure shown in fig. 6, the first side connecting slot 411 is located on the left side of the first side connecting portion 401, and the first inner connecting slot 412 is located on the left side of the first inner connecting portion 402, which are in a one-to-one correspondence structure; the first side connecting portion 401 and the first inner face connecting portion 402 protrude rightward.

As shown in fig. 1, 6 and 8, the right side plate 30 is provided with a second side connecting groove 311 engaged with the first side connecting portion 401 and a second inner connecting groove 312 engaged with the first inner connecting portion 402, and as shown in fig. 1, 6 and 9, the left side plate 20 is provided with a second side connecting portion 201 engaged with the first side connecting groove 411 and a second inner connecting portion 202 engaged with the first inner connecting groove 412. Through the grafting of spread groove and the connecting portion that correspond with the spread groove, realize being connected between the structure to make the bottom subassembly connect about two curb plates be located the bottom horizontal structure back and constitute the bottom plate.

In some preferred embodiments, as shown in fig. 6, 7, 8 and 9, the first side connecting portion 401 has a barb structure 408, and the second side connecting portion 201 has a barb structure 209. The lower surface of the first inner face connecting portion 402 and the lower surface of the second inner face connecting portion 202 are both provided with grooves, the left side of the right side plate 30 located at the second inner face connecting groove 312 is provided with a barb structure 309 matched with the groove of the lower surface of the first inner face connecting portion 402, and the left side of the bottom component located at the first inner face connecting portion 402 is provided with a barb structure 409 matched with the second inner face connecting portion 202.

It should be noted that the cooperation between the second inner surface connecting groove 312 and the first inner surface connecting portion 402 is to facilitate the positioning of the tip of the first inner surface connecting portion 402 into the second inner surface connecting groove 312 when the first inner surface connecting portion 402 is connected with the barb structure 309. Similarly, the cooperation between the first inner surface connecting groove 412 and the second inner surface connecting portion 202 facilitates the positioning of the second inner surface connecting portion 202 into the groove structure of the first inner surface connecting groove 412 when the second inner surface connecting portion 202 is connected to the barb structure 409.

In some embodiments, as shown in fig. 3, 4 and 10, each end of the connecting strip 70 is provided with a barb 71, the connecting strip 70 is further provided with a positioning insertion plate 72 extending backwards, and the inner surface of one of the upper wiring components corresponding to the positioning insertion plate 72 is provided with a positioning groove for facilitating the insertion of the positioning insertion plate 72; the lower wiring member 60 and the upper wiring member 50 have a symmetrical structure, and a connection structure of two adjacent

lower wiring members

6001 and 6002, which are connected to each other by another connecting member 70, is shown in fig. 4. Therefore, the structure of the lower wiring member is also satisfactory for connecting the connection bars 70.

In some preferred embodiments, as shown in fig. 10, two positioning insertion plates 72 are symmetrically arranged on the connecting strip 70, and the inner surfaces of two corresponding upper wiring assemblies adjacent to each other on the left and right are provided with a positioning groove matched with the positioning insertion plates 72.

In some preferred embodiments, as shown in fig. 8 and 9, the left side plate 20 and the right side plate 30 are provided with receiving

structures

213 and 313 for supporting and fixing the circuit boards, the receiving structures are plate-shaped structures protruding from the inner surfaces of the left side plate 20 and the right side plate 30 facing the inner cavity of the housing for facilitating the installation and support of the circuit boards, and fig. 8 and 9 show receiving structures for supporting the upper and lower layers of circuit boards;

in addition, all be equipped with the joint spare that is convenient for joint wiring subassembly or lower wiring subassembly on left side board 20 and the right side board 30, be equipped with joint spare 215 on the left side board 20, be equipped with joint spare 315 on the right side board 30, arbitrary joint spare all includes the guide plate and is located the joint board of guide plate top, and is located on the joint board and stretches out the end and be equipped with the barb structure.

In some preferred embodiments, the outer surfaces of the upper and lower wiring members are provided with outwardly projecting snap plates, as shown in FIG. 3, and the upper wiring member 502 is provided with the snap plate 55. The connecting device is used for mutually inserting a plurality of upper wiring components or mutually inserting a plurality of lower wiring components. In addition, can set up the convex otic placode to the joint board direction on the bottom plate, live with last wiring subassembly or lower wiring subassembly support through the otic placode to other mosaic structure of cooperation make the shaping of electrical protection casing.

In some preferred embodiments, as shown in fig. 3, the inner surface of any one of the upper wiring assemblies has recesses 53 on both left and right sides, and after the left and right adjacent upper wiring assemblies are spliced, the adjacent recesses are spliced to form a groove 54 corresponding to the groove 54, as shown in fig. 10, a protrusion 73 is provided on the connecting strip 70, and when the connecting strip 70 connects the two left and right adjacent upper wiring assemblies, the protrusion 73 is snapped into the groove 54. Because the lower wiring subassembly and the upper wiring subassembly's longitudinal symmetry, consequently, the left and right sides of the internal surface of the lower wiring subassembly adjacent about also is equipped with the sunk structure who is convenient for form another recess when both splice.

In some embodiments, as shown in fig. 1, 3 and 5, at least two adjacent upper wiring assemblies are disposed between the bottom plate 40 and the panel 10 along the front-back direction, the at least two adjacent upper wiring assemblies are spliced together and stacked up and down, the upper wiring assembly is connected to the bottom plate 40, and the lower wiring assembly is connected to the panel 10. The outer surface of any upper wiring component is provided with a clamping plate 55, the inner surface is provided with a clamping groove 52, and the clamping grooves 52 and the clamping plate 55 are in a one-to-one corresponding structure. The bottom plate 40 is provided with a lug projecting toward the card receiving plate 55 for supporting the lower wiring member, and the upper wiring member above is connected to the bottom plate through the other card slot structure. As shown in fig. 1 and 3, the upper wiring module 502 located at the front side is engaged with the engaging plate 55 on the outer surface thereof into the engaging groove 52 on the inner surface of the upper wiring module 512 located at the rear side, and the upper wiring module 512 is engaged with the engaging plate 55 on the outer surface thereof into the lug plate projecting in the direction thereof on the base plate 40 and supported by the lug plate.

In some preferred embodiments, as shown in FIG. 3, the outer surface of either the upper or lower wiring assembly is provided with at least two snap tabs 55.

In some preferred embodiments, the inner surface of either the upper wiring member or the lower wiring member has a stepped structure including a high position surface and a low position surface. As shown in fig. 4, the inner surface structure of the lower wiring assembly includes a step structure including a high position surface 601 and a low position surface 602, and the card slot 63 on the inner surface is located on the low position surface 602; detent 62 is located on low position surface 602. The positioning slot 62 is used for inserting a circuit board.

In some embodiments, the bottom panel includes at least two bottom modules, and adjacent bottom modules are plugged into each other through the first side connection portion and the first inner face connection portion on the bottom module on the left side and the first side connection groove and the first inner face connection groove on the bottom module on the right side. For example, as shown in fig. 11, the left bottom block 4001 is inserted into the first side connecting groove and the first inner connecting groove of the right bottom block 4002 through the first side connecting part and the first inner connecting part. In addition, the bottom component 4001 located at the leftmost side is plugged with the second side connection part and the second inner connection part of the left side plate 20 through the first side connection groove and the first inner connection groove thereof; the bottom module 4003 located at the rightmost side is plugged with the second side connecting groove of the right side plate 30 through the first side connecting part and the first inner face connecting part thereof.

In some preferred embodiments, the front side and the rear side of the bottom module are provided with an ear plate perpendicular to the inner surface of the bottom module, and the first side connecting portion and the first side connecting groove on the front side and the rear side of the bottom module are provided on the ear plates on the corresponding sides. For example, as shown in fig. 6, the first side connecting portion 401 and the first side connecting slot 411 are both disposed on the ear plate 419, and two ends of the bottom component are respectively disposed with one ear plate 419.

In some preferred embodiments, at least two first inner face connecting portions are provided on the bottom component, and the barb structures on one side of the second inner face connecting groove on the right side plate are in one-to-one correspondence with the first inner face connecting portions. As shown in fig. 6 and 7, two first inner surface connecting portions 402 are provided on the bottom member.

In some preferred embodiments, at least two first inner face connecting grooves are formed on the bottom component, and the second inner face connecting part on the left side plate and the first inner face connecting grooves are in a one-to-one corresponding structure.

In some preferred embodiments, the first inner surface connecting portion and the corresponding first inner surface connecting groove on the bottom assembly are of an integrated structure, the first inner surface connecting groove is formed by slotting on one side opposite to the protruding end of the first inner surface connecting portion, and the slotting structure is communicated with the left side and the right side of the first inner surface connecting portion.

In some preferred embodiments, as shown in fig. 8 and 9, the left side plate 20 is provided with a left support plate 219 perpendicular to the inner surface of the left side plate, the right side plate 30 is provided with a right support plate 319 perpendicular to the inner surface of the right side plate, and the left end of the panel 10 is erected on the left support plate 219 and the right end is erected on the right support plate 319 when the electrical protection shell is formed.

In some preferred embodiments, as shown in fig. 2 and 7, the outer surface of the bottom assembly is provided with a mounting groove for conveniently mounting the rail connecting buckle 80, the mounting groove comprises a mounting groove left portion 42 and a mounting groove right portion 41, the mounting groove left portion 42 is located on the left side of the outer surface of the bottom assembly, the mounting groove right portion 41 is located on the right side of the outer surface of the bottom assembly, and the rail connecting buckle 80 is placed in a gap between the mounting groove left portion 42 and the mounting groove right portion 41; the mounting groove left part 42 is provided with a rightward groove, the mounting groove right part 41 is provided with a leftward groove, the two grooves are opposite, and the structural wall thickness can be uniform through the grooves.

In some embodiments, as shown in fig. 1 and 12, the upper wire assembly 50 includes an upper plate assembly and a fixing terminal assembly, the upper plate assembly being located at an upper side of the fixing terminal assembly. The upper panel assembly comprises an upper end panel 5001, a movable terminal seat 5002, a movable terminal 5003 and a bolt 5004, and the fixed terminal assembly comprises a fixed terminal 5011 and a fixed terminal seat 5012; the fixed terminal 5011 is disposed in the fixed terminal seat 5012, one end of the fixed terminal is embedded into one side of the fixed terminal seat 5012, the other end of the fixed terminal passes through the other side of the fixed terminal seat 5012, and the fixed terminal seat 5012 is provided with a first electrical connection hole 5301.

As shown in fig. 13, the cable 90 is inserted into the third electrical connection hole 5303 of the upper end panel 5001, and then the end portion thereof is positioned in the second electrical connection hole 5302 of the movable terminal holder 5002, and then sandwiched between the movable terminal 5003 and the fixed terminal 5011.

The fixed terminal 5011 is provided with a projecting end 5011-1 projecting upward as shown in fig. 14.

The front end of the movable terminal 5003 is arranged on the front side of the movable terminal seat 5002 through a bolt 5004, the rear end of the movable terminal is positioned in a second electrical connection hole 5302 arranged on the movable terminal seat 5002, the protruding end 5011-1 of the fixed terminal 5011 penetrates through the first electrical connection hole 5301 and then is positioned on the rear side of the rear end of the movable terminal 5003 in the second electrical connection hole 5302, the bolt 5004 is screwed into and screwed out of the movable terminal seat 5002 to drive the movable terminal 5003 to reciprocate in the front-back direction, and a bolt hole 5400 and a third electrical connection hole 5303 are further arranged on the upper end panel 5001; the fixed terminal block 5012 is provided with an upwardly projecting boss 5012-1 for limiting the position of the movable terminal block 5002 after assembly.

In some preferred embodiments, as shown in fig. 14 and 15, the fixed terminal 5011 is provided with a fixed terminal hole 5011-2, and the left side and/or the right side of the fixed terminal is provided with a saw-toothed structure 5011-3; the outer surface of the protruding end 5011-1 of the fixed terminal 5011 is provided with a groove structure 5011-4; the lower end 5011-6 of the fixed terminal 5011 is a pointed end, so that the fixed terminal is convenient to be connected with a hole site on a PCB and then welded.

In some preferred embodiments, the lower portion of the fixed terminal 5011 is provided with a bend 5011-5 as shown in fig. 15, the bend 5011-5 and the protruding end 5011-1 are parallel to each other, and the length of the bend 5011-5 is smaller than the protruding length of the protruding end 5011-1.

In some preferred embodiments, the fixed terminal is embedded in the fixed terminal seat, and the fixed terminal seat are of an integrated injection molding structure.

In some preferred embodiments, as shown in fig. 14 and 15, the fixed terminal holes 5011 to 2 of the fixed terminals are through-hole structures.

In some preferred embodiments, the groove structure of the outer surface of the protruding end of the fixed terminal may be modified to a protrusion structure.

In the present application, the lower wiring assembly and the upper wiring assembly have symmetrical structures, and have the same structural arrangement. The structural description of the upper wiring member in the above embodiments is applicable to the lower wiring member.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A modularized electric protection shell structure comprises a shell main body, wherein the shell main body is formed by splicing a panel positioned on the front side, a left side plate positioned on the left side, a right side plate positioned on the right side, a bottom plate positioned on the back side, an upper wiring assembly positioned above and a lower wiring assembly positioned below, a circuit board is arranged in an inner cavity of the shell main body, and the modularized electric protection shell structure is characterized in that at least two adjacent upper wiring assemblies are arranged between the left side plate and the right side plate along the left-right direction, the at least two adjacent upper wiring assemblies are spliced with each other through a connecting strip, and the lower wiring assemblies and the upper wiring assemblies are of symmetrical structures and are in one-to-one correspondence;

2. The modular electrical protective housing structure of claim 1, wherein each end of said connecting strip is provided with a barb;

3. The modular electrical protection shell structure of claim 2, wherein two of said positioning insertion plates are symmetrically arranged on said connecting strip, and a positioning groove matched with said positioning insertion plate is arranged on the inner surface of each of two corresponding upper wiring assemblies which are adjacent to each other;

4. The modular electrical protection shell structure according to claim 3, wherein clamping plates protruding outwards are arranged on the outer surfaces of the upper wiring assembly and the lower wiring assembly, clamping grooves for clamping with all the upper wiring assembly and the lower wiring assembly are arranged on the bottom plate, and the clamping plates are clamped into the clamping grooves to realize clamping of the upper wiring assembly and the bottom plate and clamping of the lower wiring assembly and the bottom plate;

5. The modular electrical protection shell structure according to claim 4, wherein at least two adjacent upper wiring assemblies are arranged between the bottom plate and the panel along the front-back direction, the at least two adjacent upper wiring assemblies are spliced with each other, a clamping plate is arranged on the outer surface of any one of the upper wiring assemblies, a clamping groove is arranged on the inner surface of any one of the upper wiring assemblies, the clamping grooves and the clamping plates are in a one-to-one correspondence structure, another clamping groove structure corresponding to the clamping plate is also arranged on the bottom plate, the upper wiring assembly positioned at the forefront is clamped into the clamping groove on the inner surface of the upper wiring assembly positioned at the rear side through the clamping plate on the outer surface of the upper wiring assembly, and the upper wiring assembly positioned at the rear side is clamped into the clamping groove on the bottom plate through the clamping plate on the outer surface of the upper wiring assembly.

6. A modular electrical protective housing structure according to any one of claims 1 to 5, wherein said upper wiring assembly includes an upper panel assembly and a fixed terminal assembly, said upper panel assembly being located on an upper side of said fixed terminal assembly, said upper panel assembly including an upper end panel, a movable terminal block, a movable terminal and a bolt, said fixed terminal assembly including a fixed terminal and a fixed terminal block;

and the fixed terminal seat is provided with a boss protruding upwards.

7. The modular electrical protective housing structure of claim 6, wherein the fixed terminal has a fixed terminal hole, and the left side and/or the right side of the fixed terminal has a saw-toothed structure;

8. The modular electrical protective housing structure of claim 6, wherein a bend is formed at a lower portion of said fixed terminal, said bend being parallel to said protruding end, and a length of said bend being less than a protruding length of said protruding end.

9. A modular electrical protective housing structure as claimed in any one of claims 1 to 5, wherein said base panel includes at least two said bottom modules, and adjacent said bottom modules are plugged into each other through a first side connecting portion and a first inner face connecting portion on said bottom module on the left side and a first side connecting groove and a first inner face connecting groove on said bottom module on the right side;

10. The modular electrical protective housing structure of claim 9, wherein the outer surface of the bottom assembly is provided with a mounting groove for facilitating mounting of a rail attachment clip, the mounting groove comprising a mounting groove left portion and a mounting groove right portion, the mounting groove left portion being located on the left side of the outer surface of the bottom assembly, the mounting groove right portion being located on the right side of the outer surface of the bottom assembly, a space therebetween being provided for the rail attachment clip;