CN218727547U

CN218727547U - Install single-phase smart electric meter fast

Info

Publication number: CN218727547U
Application number: CN202221624470.1U
Authority: CN
Inventors: 陈彬; 刘京; 许璐; 邓子文; 蔡玲
Original assignee: State Grid Corp of China SGCC; Bozhou Power Supply Co of State Grid Anhui Electric Power Co Ltd; Mengcheng Power Supply Co of State Grid Anhui Electric Power Co Ltd
Current assignee: Bozhou Yiyuan Power Co ltd Mengcheng New Power Branch
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2023-03-24
Anticipated expiration: 2032-06-24

Abstract

The utility model discloses an install single-phase smart electric meter fast, including the smart electric meter body, still include lower casing box, top panel lid, go up sliding closure and binding post unit, top panel lid demountable installation be in the positive upper end of lower casing box, but go up sliding closure slidable mounting be in the positive lower extreme of lower casing box, the smart electric meter body is installed the inside upper end of lower casing box, and cover in under the top panel lid, the binding post unit is pegged graft the inside lower extreme of lower casing box, and cover in go up under the sliding closure. The utility model discloses in, distributing about smart electric meter body and binding post unit under in the shell box, smart electric meter body installation is in the inside upper end of shell box down to it is fixed to cover the encapsulation via the top panel, and binding post unit slidable mounting is at the inside lower extreme of shell box down, and pegs graft and communicate to smart electric meter body, covers the protection via going up the slide cover simultaneously, not only wiring installation safety easily observes, dismantles moreover and changes conveniently fast.

Description

Install single-phase smart electric meter fast

Technical Field

The utility model relates to a power equipment technical field, specifically speaking relate to a install single-phase smart electric meter fast.

Background

The intelligent electric meter is one of basic devices for data acquisition of an intelligent power grid (particularly an intelligent power distribution network), bears the tasks of original electric energy data acquisition, metering and transmission, and is the basis for realizing information integration, analysis optimization and information display.

The intelligent electric meter has the functions of bidirectional multi-rate metering, user side control, bidirectional data communication in various data transmission modes, electricity larceny prevention and other intelligentized functions besides the metering function of the basic electricity consumption of the traditional electric meter, so that the intelligent electric meter is widely applied to daily production and use and life use. Most of single-phase intelligent electric meters are used in daily life, in the prior art, most of the single-phase intelligent electric meters fixedly package a wiring terminal in an electric meter shell, so that subsequent electric meter disassembly, assembly, maintenance or replacement work is inconvenient;

as the application No. 201510543741.9, publication No. 2015.11.25, which is entitled a cost-controlled smart meter with convenient assembly and disassembly, the paragraph [ 0004 ] in the specification of the patent describes "the auxiliary connection terminals in the smart meter in the prior art are all fixed on the meter housing by direct soldering";

if the application number is 202023001185.8, the publication date is 2021.08.27, the patent name is an ammeter convenient for plugging and unplugging a terminal, and the paragraph of the specification of the patent [ 0003 ] describes that "the existing ammeter is connected with a live wire and a zero wire through a connecting terminal when in use, the terminal needs to be opened to disassemble and repair the live wire and the zero wire when in use, and a professional tool needs to be used to repair when the terminal is opened;

for example, the application number is 201620902570.4, the publication date is 2017.01.11, the patent name is an electric meter box connector, and the contents of paragraph [ 0002 ] in the specification of the patent document describe that "the electric meter box connector on the market at present has poor plugging effect, is troublesome to mount and dismount, has short service life, needs to be replaced for a long time, and is very troublesome to replace, so that the problems can be solved by the electric meter box connector which is convenient to mount. Among the prior art, the plug terminal compresses tightly through the clamp plate and fixes on the connector, and the clamp plate passes through screw and connector fixed connection, and is comparatively loaded down with trivial details during assembly operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a convenient single-phase smart electric meter of quick installation is changed in dismouting is provided.

In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a single-phase smart electric meter of quick installation, includes the smart electric meter body, still includes lower casing box, upper panel cover, goes up sliding closure and binding post unit, upper panel cover demountable installation be in the positive upper end of lower casing box, but go up sliding closure slidable mounting in the positive lower extreme of lower casing box, go up sliding closure sliding connection and be in the bottom of upper panel cover, the smart electric meter body install the inside upper end of lower casing box to cover under the upper panel cover, the binding post unit peg graft the inside lower extreme of lower casing box, and cover under going up the sliding closure.

Furthermore, all adopt the insulating plastics material with the top panel lid of lower shell box, the display screen and the function button of smart electric meter body are inlayed respectively and are installed the top panel is covered.

Furthermore, go up the sliding closure and adopt insulating transparent material, the top of going up the sliding closure is fixed with spacing blend stop, the confession has been seted up to the bottom of top panel cover go up the strip mouth that the sliding cover inserted or the roll-off, the section length and the width of strip mouth all more than or equal to the section length and the width of top panel cover, the section length or the width more than or equal to of strip mouth the section length or the width of spacing blend stop.

Furthermore, a first magnetic attraction strip is embedded at the bottom end of the front side of the lower shell box, a second magnetic attraction strip is embedded at the bottom end of the back side of the upper sliding cover, and the first magnetic attraction strip and the second magnetic attraction strip are mutually attracted.

Furthermore, the wiring terminal unit comprises an insulating base and a plurality of conductive copper columns, wherein a plurality of inner notches are uniformly arranged on the front surface of the insulating base at intervals, wiring locking bolts which can be electrically connected to corresponding conductors in the insulating base are installed in the inner notches in an internal thread manner, the conductive copper columns are installed at the top of the insulating base at intervals, the lower ends of the conductive copper columns are respectively inserted into the insulating base and can be electrically connected with the wiring locking bolts through the conductors.

Furthermore, a marble positioning pin is embedded in the upper end of the conductive copper column, a conductive interface matched with the conductive copper column in an inserted mode is formed in the lower end of the inner portion of the intelligent electric meter body, an installation opening is formed in the bottom of the lower shell box, the insulating base penetrates through the installation opening and is matched with the conductive copper column in an inserted mode, and therefore the insulating base is installed at the lower end of the inner portion of the lower shell box in an inserted mode and is electrically connected to the intelligent electric meter body.

Furthermore, the wiring terminal unit further comprises two plug sockets which are respectively fixed at the left end and the right end of the insulating base body, plug rails are respectively fixed at the left side and the right side of the lower end of the inner wall surface of the lower shell, and the plug sockets are matched with the plug rails in a sliding plug manner;

the inside of socket is fixed with the backup pad between two parties, the front and the back of backup pad are connected with the location bullet piece via many damping spring respectively, just the front and the back of socket are seted up between two parties respectively and are used for the direction through-hole that the location bullet piece penetrated or wore out, under no exogenic action, the upper end of location bullet piece stretch out in the socket, the lower extreme of location bullet piece probe into the socket, the front and the back of plug rail set up between two parties respectively with the location through-hole that the bullet piece joint matches.

Furthermore, a plurality of clamping sliding grooves which can be respectively matched with the plurality of clamping sliding strips arranged on the inner wall surface of the lower shell in a one-to-one sliding mode are formed in the back surface of the insulating base at intervals.

Furthermore, a plurality of the inner notches are in a row structure and are located at the lower end of the front face of the insulating base body, two wiring locking bolts are arranged in each inner notch at intervals from top to bottom, an upper sliding connecting piece can be connected between the two wiring locking bolts, arc notches and limiting holes are distributed in the upper and lower portions of the upper sliding connecting piece at intervals, the limiting holes are sleeved on the wiring locking bolts located at the lower end, and the arc notches can be slidably abutted to the wiring locking bolts located at the upper end.

Furthermore, a plurality of wire inlets for inserting wires are uniformly arranged at the bottom of the insulating base at intervals, each wire inlet corresponds to each inner notch and each conductive copper column one by one and is located at the same vertical axial position, and the wire inlets are communicated to the conductors in the insulating base.

The beneficial effects of the utility model are embodied in:

the utility model discloses in, distribute about smart electric meter body and binding post unit in the lower shell box, the inside upper end of smart electric meter body installation at the lower shell box, and it is fixed to cover the encapsulation via the top panel, binding post unit slidable mounting is at the inside lower extreme of lower shell box, and peg graft and communicate to the smart electric meter body, cover the protection on the upper slide cover simultaneously, not only wiring installation safety is easily observed, and it is convenient quick to dismantle the change moreover, replaced the traditional mounting means who utilizes a plurality of bolts one-to-one, the dismouting is overhauld or is changed swiftly high-efficiently.

Drawings

Fig. 1 is an overall structure front view of an embodiment of the present invention.

Fig. 2 is a bottom view of the overall structure of an embodiment of the present invention.

Fig. 3 is a front view of the terminal block unit according to an embodiment of the present invention, with the terminal block unit removed.

Fig. 4 is a bottom view of the terminal block unit according to an embodiment of the present invention.

Fig. 5 is a front view of an upper slide cover according to an embodiment of the present invention.

Fig. 6 is a front view of a terminal block unit according to an embodiment of the present invention.

Fig. 7 is a bottom view of a terminal unit according to an embodiment of the present invention.

Fig. 8 is an enlarged schematic view of a portion a according to an embodiment of the present invention.

The components in the drawings are labeled as follows: 1. the intelligent ammeter comprises an intelligent ammeter body; 2. a terminal block unit; 3. a lower case box; 301. An installation opening; 302. a first magnetic attraction strip; 4. an upper panel cover; 401. a strip-shaped opening; 5. an upper sliding cover; 501. Limiting barrier strips; 502. a second magnetic attraction strip; 6. inserting a rail; 601. positioning the through hole; 7. clamping the slide bar; 8. An insulating base body; 9. a socket; 901. positioning the elastic block; 902. a guide through hole; 903. a support plate; 904. a damping spring; 10. a conductive copper pillar; 1001. a marble positioning pin; 11. longitudinal parting strips; 12. transverse parting strips; 1201. A signboard; 13. an inner recess; 14. a wiring locking bolt; 15. an upper sliding sheet; 16. a wire inlet; 17. The sliding chute is clamped.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, back, 8230; \8230;) are provided in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B", including either A or B or both A and B. In addition, "a plurality" means two or more. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

See fig. 1-8.

The utility model provides a install single-phase smart electric meter fast, including smart electric meter body 1, still include lower casing box 3, top panel lid 4, go up flip 5 and binding post unit 2, top panel lid 4 demountable installation be in the positive upper end of lower casing box 3, but go up flip 5 slidable mounting be in the positive lower extreme of lower casing box 3, it is in to go up flip 5 sliding connection the bottom of top panel lid 4, smart electric meter body 1 installs the inside upper end of lower casing box 3, and cover in under the top panel lid 4, binding post unit 2 is pegged graft the inside lower extreme of lower casing box 3, and cover in under the top panel lid 5.

In an embodiment, the lower case 3 and the upper panel cover 4 are made of insulating plastic, and the display screen and the function keys of the smart meter body 1 are respectively mounted on the upper panel cover 4 in an embedded manner. Design like this, smart electric meter body 1 is stable installation in lower shell box 3, it is right that top panel lid 4 smart electric meter body 1 plays the encapsulation guard action, lower shell box 3 and top panel lid 4 are safe insulating not only, and the cost is lower moreover, have better economic practicality.

In an embodiment, the upper sliding cover 5 is made of an insulating transparent material, the top of the upper sliding cover 5 is fixed with a limiting barrier 501, the bottom of the upper panel cover 4 is provided with a strip-shaped opening 401 for the upper sliding cover 5 to insert or slide out, both the length and the width of the cross section of the strip-shaped opening 401 are greater than or equal to those of the upper panel cover 4, and the length or the width of the cross section of the strip-shaped opening 401 is greater than or equal to those of the limiting barrier 501. Due to the design, the upper sliding cover 5 slides up and down along the strip-shaped opening 401, so that the opening and closing are fast, the covering and protecting effect on the wiring terminal unit 2 arranged at the lower end inside the lower shell box 3 is achieved, and the danger caused by mistaken touch is prevented.

In an embodiment, the front bottom end of the lower housing box 3 is embedded with a first magnetic strip 302, the back bottom end of the upper sliding cover 5 is embedded with a second magnetic strip 502, and the first magnetic strip 302 and the second magnetic strip 502 are attracted to each other. The design is such that the upper sliding cover 5 can be stably adsorbed and covered on the lower end of the front surface of the lower shell box 3, and the wiring terminal unit 2 is protected.

In one embodiment, the terminal unit 2 includes an insulating base 8 and conductive copper pillars 10, a plurality of inner recesses 13 are uniformly spaced apart from the front surface of the insulating base 8, a wire locking bolt 14 electrically connected to each corresponding conductor in the insulating base 8 is installed in the inner recess 13, the conductive copper pillars 10 have a plurality of inner recesses 13 uniformly spaced apart from the top of the insulating base 8, and the lower end of each conductive copper pillar 10 is inserted into the insulating base 8 and electrically connected to the wire locking bolt 14 through each conductor. By the design, the insulation seat body 8 realizes the stable insertion in the lower shell box 3 under the connection action of the conductive copper column 10.

In an embodiment, the upper end of the conductive copper pillar 10 is embedded with a marble positioning pin 1001, the lower end of the inside of the smart electric meter body 1 is provided with a conductive interface in splicing matching with the conductive copper pillar 10, the bottom of the lower case box 3 is provided with an installation opening 301, and the insulating base 8 passes through the installation opening 301 and is in splicing matching with the conductive interface through the conductive copper pillar 10, so as to be spliced and installed at the lower end of the inside of the lower case box 3 and electrically connected to the smart electric meter body 1. Design like this, electrically conductive copper post 10 peg graft extremely smart electric meter body 1 plays the effect of intercommunication circuit, marble locating pin 1001 plays the effect of elastic clamping location, helps improving the firm degree of binding post unit 2 installation.

In an embodiment, the terminal unit 2 further includes two insertion sockets 9 respectively fixed at the left and right ends of the insulating base 8, insertion rails 6 are respectively fixed at the left and right sides of the lower end of the inner wall surface of the lower housing box 3, and the insertion sockets 9 are matched with the insertion rails 6 in a sliding insertion manner;

a support plate 903 is fixed in the middle inside the socket 9, the front and the back of the support plate 903 are connected with a positioning elastic block 901 through a plurality of damping springs 904 respectively, a guide through hole 902 for the positioning elastic block 901 to penetrate in or out is formed in the middle on the front and the back of the socket 9 respectively, the upper end of the positioning elastic block 901 extends out of the socket 9 without external force, the lower end of the positioning elastic block 901 extends into the socket 9, and a positioning through hole 601 clamped and matched with the positioning elastic block 901 is formed in the middle on the front and the back of the plug rail 6 respectively. By the design, when the plug socket 9 is inserted into the corresponding plug rail 6 in the lower housing box 3 and is matched with the plug rail in a sliding and plugging manner, the positioning elastic block 901 is pressed into the plug socket 9 under the pressure limitation, the damping spring 904 is reset without the pressure limitation, and the positioning elastic block 901 is correspondingly matched with the positioning through hole 601 and is popped out, so that the stability of the plug structure is enhanced, and looseness is prevented.

In an embodiment, a plurality of clamping sliding grooves 17 which are respectively matched with the plurality of clamping sliding strips 7 distributed on the inner wall surface of the lower case 3 in a one-to-one sliding manner are formed on the back surface of the insulating base 8 at intervals. Design like this, joint spout 17 further plays the improvement insulating pedestal 8 is in the effect of the firm degree of grafting in the lower shell box 3.

In an embodiment, the plurality of inner recesses 13 are located at the lower end of the front surface of the insulating base 8 in a row structure, each inner recess 13 has two wiring locking bolts 14 distributed at intervals up and down, an upper sliding connecting piece 15 can be connected between the two wiring locking bolts 14, the upper sliding connecting piece 15 has arc-shaped recesses and limiting holes distributed at intervals up and down, the limiting holes are sleeved on the wiring locking bolts 14 located at the lower end, the arc-shaped recesses can slidably abut against the wiring locking bolts 14 located at the upper end, and the aperture of each limiting hole and the aperture of each arc-shaped recess are larger than the outer diameter of the bolt rod of the wiring locking bolt 14. Design like this, it is two from top to bottom to go up slide 15 even sliding connection is smooth and easy between wiring locking bolt 14, under the state of not cutting off the power supply, upwards slides go up slide 15 even, make spacing hole hug closely the cover establish the lower extreme on wiring locking bolt 14, the arc notch is hugged closely and is contradicted to the upper end wiring locking bolt 14 realizes the voltage outage, otherwise slides down go up slide even 15, arc notch and upper end wiring locking bolt 14 loosens, then realizes the voltage path, and the ammeter normally inserts the circuit.

In an embodiment, a plurality of wire inlets 16 for inserting wires are formed at the bottom of the insulating base 8 at regular intervals, each wire inlet 16 corresponds to each inner recess 13 and the conductive copper column 10 one by one and is located at the same vertical axial position, and the wire inlets 16 are communicated with the conductors in the insulating base 8. By the design, the lead is inserted from the wire inlet 16, is abutted by the wiring locking bolt 14 and then is sequentially electrically communicated with the conductor and the conductive copper column 10, and finally is electrically connected to the intelligent electric meter body 1.

In an embodiment, the insulation base further includes a plurality of longitudinal division bars 11 and a plurality of transverse division bars 12, the longitudinal division bars 11 are respectively and uniformly distributed on the front surface of the insulation base body 8 at intervals, an inner notch 13 is arranged between every two adjacent longitudinal division bars 11, the transverse division bars 12 are installed on the plurality of longitudinal division bars 11 in a buckling manner, and the labels 1201 are respectively attached to the front surfaces of the transverse division bars 12 above the inner notches 13 in a one-to-one correspondence manner. Design like this, vertical parting bead 11 and horizontal parting bead 12 all play right the guard action of insulating pedestal 8, the wiring port that marks the live wire zero line on the signboard 1201 prevents the misconnection short circuit.

It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the present invention, and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application.

Claims

1. The utility model provides a single-phase smart electric meter of quick installation, includes smart electric meter body (1), its characterized in that: the intelligent electric meter is characterized by further comprising a lower shell box (3), an upper panel cover (4), an upper sliding cover (5) and a wiring terminal unit (2), wherein the upper panel cover (4) is detachably mounted at the upper end of the front side of the lower shell box (3), the upper sliding cover (5) is slidably mounted at the lower end of the front side of the lower shell box (3), the upper sliding cover (5) is slidably connected to the bottom of the upper panel cover (4), the intelligent electric meter body (1) is mounted at the upper end of the inner portion of the lower shell box (3) and covers the lower end of the upper panel cover (4), and the wiring terminal unit (2) is inserted into the lower end of the inner portion of the lower shell box (3) and covers the lower end of the upper sliding cover (5).

2. The fast-install, single-phase smart meter of claim 1, wherein: lower casing box (3) and upper panel lid (4) all adopt the insulating plastics material, the display screen and the function button of smart electric meter body (1) are inlayed respectively and are installed on upper panel lid (4).

3. The single-phase smart meter of claim 1, wherein: the upper sliding cover (5) is made of an insulating transparent material, a limiting barrier strip (501) is fixed to the top of the upper sliding cover (5), a strip-shaped opening (401) for the upper sliding cover (5) to insert or slide out is formed in the bottom of the upper panel cover (4), the length and the width of the section of the strip-shaped opening (401) are both larger than or equal to those of the section of the upper panel cover (4), and the length or the width of the section of the strip-shaped opening (401) are larger than or equal to those of the section of the limiting barrier strip (501).

4. A quick-install, single-phase smart meter as recited in claim 3, wherein: the front bottom end of the lower case box (3) is embedded with a first magnetic strip (302), the back bottom end of the upper sliding cover (5) is embedded with a second magnetic strip (502), and the first magnetic strip (302) and the second magnetic strip (502) are mutually adsorbed.

5. The fast-install, single-phase smart meter of claim 1, wherein: the wiring terminal unit (2) comprises an insulating base body (8) and conductive copper columns (10), wherein a plurality of inner notches (13) are uniformly arranged on the front surface of the insulating base body (8) at intervals, wiring locking bolts (14) which can be electrically connected to corresponding conductors in the insulating base body (8) are installed in the inner notches (13) in a threaded mode, the conductive copper columns (10) are multiple and are uniformly installed at the top of the insulating base body (8) at intervals, and the lower ends of the conductive copper columns (10) are respectively inserted into the insulating base body (8) and can be electrically connected with the wiring locking bolts (14) through the conductors.

6. The single-phase smart meter of claim 5, wherein: the utility model discloses a smart electric meter, including smart electric meter body (1), electrically conductive copper post (10), installation opening (301), insulating pedestal (8) pass installation opening (301) and via the grafting of electrically conductive copper post (10) and electrically conductive interface is matchd to the upper end of electrically conductive copper post (10) inlays and is equipped with marble locating pin (1001), the inside lower extreme of smart electric meter body (1) seted up with electrically conductive copper post (10) grafting matching, installation opening (301) have been seted up to the bottom of lower shell box (3), insulating pedestal (8) pass installation opening (301) and via the grafting of electrically conductive copper post (10) and electrically conductive interface matches, thereby the grafting is installed the inside lower extreme of lower shell box (3), and electric connection to smart electric meter body (1).

7. The fast-install, single-phase smart meter of claim 5, wherein: the wiring terminal unit (2) further comprises two plug sockets (9) which are respectively fixed at the left end and the right end of the insulating base body (8), plug rails (6) are respectively fixed at the left side and the right side of the lower end of the inner wall surface of the lower shell box (3), and the plug sockets (9) are matched with the plug rails (6) in a sliding plug manner;

a supporting plate (903) is fixed in the middle inside the plug socket (9), the front and the back of the supporting plate (903) are connected with a positioning elastic block (901) through a plurality of damping springs (904), a guide through hole (902) for the positioning elastic block (901) to penetrate into or out of is formed in the middle of the front and the back of the plug socket (9), under the condition of no external force, the upper end of the positioning elastic block (901) extends out of the plug socket (9), the lower end of the positioning elastic block (901) extends into the plug socket (9), and a positioning through hole (601) in clamping matching with the positioning elastic block (901) is formed in the middle of the front and the back of the plug rail (6).

8. The fast-install, single-phase smart meter of claim 5, wherein: a plurality of clamping sliding grooves (17) which can be respectively matched with the plurality of clamping sliding strips (7) which are distributed on the inner wall surface of the lower shell box (3) in a one-to-one sliding mode are formed in the back surface of the insulating base body (8) at intervals.

9. The fast-install, single-phase smart meter of claim 5, wherein: it is a plurality of interior notch (13) are one row of column structure and are located the positive lower extreme of insulating pedestal (8), each all have two upper and lower interval distribution in interior notch (13) wiring locking bolt (14), two can be connected with between wiring locking bolt (14) and go up slide even piece (15), go up slide even piece (15) upper and lower respectively interval distribution have arc notch and spacing hole, spacing hole cup joints and is being located the lower extreme wiring locking bolt (14) is last, arc notch slidable conflict to being located the upper end wiring locking bolt (14).

10. The fast-install, single-phase smart meter of claim 5, wherein: a plurality of wire inlets (16) for inserting wires are uniformly arranged at the bottom of the insulating base body (8) at intervals, each wire inlet (16) corresponds to each inner notch (13) and each conductive copper column (10) one by one and is located at the same vertical axial position, and the wire inlets (16) are communicated with the conductors in the insulating base body (8).