WO2022142342A1 - 一种电表箱底座的安装结构及其电表箱的电气连接结构 - Google Patents

一种电表箱底座的安装结构及其电表箱的电气连接结构 Download PDF

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Publication number
WO2022142342A1
WO2022142342A1 PCT/CN2021/110483 CN2021110483W WO2022142342A1 WO 2022142342 A1 WO2022142342 A1 WO 2022142342A1 CN 2021110483 W CN2021110483 W CN 2021110483W WO 2022142342 A1 WO2022142342 A1 WO 2022142342A1
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WO
WIPO (PCT)
Prior art keywords
metal contact
base
contact portion
electric meter
structure according
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PCT/CN2021/110483
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English (en)
French (fr)
Inventor
马汝华
林国庆
郭袁炜
Original Assignee
宁波三星医疗电气股份有限公司
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Application filed by 宁波三星医疗电气股份有限公司 filed Critical 宁波三星医疗电气股份有限公司
Publication of WO2022142342A1 publication Critical patent/WO2022142342A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02—Constructional details
    • G01R11/04—Housings; Supporting racks; Arrangements of terminals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02—Constructional details
    • G01R11/24—Arrangements for avoiding or indicating fraudulent use

Definitions

  • the invention relates to the technical field of electric meter boxes, in particular to an installation structure of an electric meter box base and an electrical connection structure of the electric meter box.
  • the meter box is a device that assembles switchgear, measuring instruments, protective appliances and auxiliary equipment in the shell according to the electrical wiring requirements.
  • the electric meter box generally includes a casing, a base and an electric meter respectively arranged in the casing.
  • the base is used for fixing the meter, supplying power to the meter, and performing signal transmission.
  • the Chinese utility model patent with the application number CN201320062767.8 (announcement number CN203084032U) discloses a "conductor rail type integrated electric meter box", which consists of a box body, a conductive rail, an insulating baffle, a plug-in type electric energy meter, etc.
  • the box body is provided with a conductor rail placement slot for placing the conductor rail, and an electric energy meter plug-in device is made on the conductive rail.
  • the hole, the electric energy meter is inserted and connected to the electric hole, the signal contact and the signal bus; the insulating clapboard is equipped with a sliding electric energy meter and a branch switch.
  • This patent changes the traditional wiring method in the meter box to the installation method of sliding or plugging through the conductive rail.
  • the wiring is standardized, and the contact area of the electrical connection point is larger, and the contact area can reach 70%;
  • the work is replaced by the assembly line production in the workshop, which greatly reduces the comprehensive cost of the production and construction of the electric meter box, and makes the installation of the electric energy metering device more standardized and convenient.
  • the electric energy meter is connected to the electric power plug-in device in a sliding connection, but the specific structure of the sliding connection of the electric energy meter is not disclosed.
  • the patent does not disclose other mounting structures of the base for powering the electric meter.
  • a single base is first assembled with its own connecting elements, and then the two connecting elements in two adjacent bases are connected. There are many installation procedures, so the installation efficiency of the base is low.
  • the Chinese utility model with the application number CN201721601403.7 (announcement number CN207518148U) discloses "an electric meter box for a mobile base station", the electric meter box includes a box body and a box cover, and a vertical grid is arranged in the box.
  • the baffle and the grid baffle divide the space in the box into a strong current chamber and a weak current chamber.
  • the strong current chamber is provided with a smart meter and a power supply module
  • the weak current chamber is provided with a concentrator, an air duct and an environmental controller.
  • a fan is arranged in the pipe, an antenna opening is arranged on the right side wall of the box, a radome is located outside the antenna opening and is fixedly connected to the right side wall of the box, and also includes a door magnetic switch, and the right side wall of the box is The switch part of the door magnetic switch is arranged on the upper part, and the magnet part of the door magnetic switch is arranged in the radome.
  • the patent divides the box into a strong current chamber and a weak current chamber, which improves the anti-interference ability of the equipment in the weak current chamber.
  • a smart meter and a power supply module are installed in the strong current chamber, and a concentrator, an air duct and an environmental controller are installed in the weak current chamber, and the installation structure of the live wire copper bar, the neutral wire copper bar and the signal wire is not disclosed.
  • the Chinese utility model patent with the application number of CN201520025616.4 (announcement number of CN204304237U) discloses the "electric meter box with zero-fire separation wiring", the electric meter box includes a box body, and the inner wall of the box body is provided with a mounting plate, The installation board is provided with a live wire input interface, a neutral wire input interface, at least one meter installation position, a neutral wire output wire trough, a neutral wire input wire trough and an output wire hole.
  • the input neutral line is connected with the electric meter installation position, and the electric meter installation position is connected with the output line hole through the output neutral line arranged along the output wire groove of the neutral line.
  • the live wire and the neutral wire are separated by an insulating partition, which reduces the occurrence of various electric leakage accidents and has a higher safety factor, but does not disclose the installation structure of the live wire neutral wire and the signal wire.
  • the live wire copper bar and the change copper bar belong to the strong current part, and the signal line belongs to the weak current part. If the distance between the strong current part and the weak current part is too close, the strong current part will easily interfere with the weak current part, thus affecting the accuracy of measurement and the stability of signal transmission, etc. .
  • the Chinese utility model patent with the application number of CN201320062767.8 (announcement number of CN203084032U) discloses a "conductor rail type integrated electricity meter box".
  • the installation structure of the signal line in the base of the meter Generally, the signal line and the metal connection part are disconnected, and they need to be connected by screws and fixed to the base, so the process of assembling the signal line and the metal connection part to the base is time-consuming and the installation efficiency is low.
  • the Chinese utility model patent with the application number CN201320062767.8 discloses a "conductor rail type integrated electricity meter box”. electrical connection structure.
  • the Chinese utility model patent with the application number CN201620282852.9 discloses a "plug-in type electric meter", the plug-in type electric meter includes a meter body and a base, and the meter body is inserted through the plug at the bottom. The blade is inserted into the base, and a backstop member is arranged on the insertion blade.
  • This structure can prevent the meter body and the base from loosening each other after being plugged in, and even the phenomenon that the meter body is detached from the base, and ensures the plug-in reliability of the plug-in electric meter, but no other electrical connection structure is disclosed. It generally involves the electrical connection of the signal line, mainly in the form of hard connection.
  • the two metal contact parts respectively arranged on the base and the meter are copper pillars. When the base and the meter are connected, the two copper pillars are in contact to achieve electrical connection. , When there is a machining error or an assembly error, the two copper columns are prone to poor contact, thereby affecting the electrical connection between the meter and the base.
  • the installation structure of the base of the electric meter box and the electrical connection structure of the electric meter box can be further improved.
  • the first technical problem to be solved by the present invention is to provide an installation structure for the base of an electric meter box with high base installation efficiency in view of the current state of the prior art.
  • the second technical problem to be solved by the present invention is to provide a mounting structure for the base of the meter box in which the strong current part does not easily interfere with the weak current part, aiming at the current state of the prior art.
  • the third technical problem to be solved by the present invention is to provide an installation structure for the base of the electric meter box with high installation efficiency of the signal wire and the metal connection part according to the current situation of the prior art.
  • the fourth technical problem to be solved by the present invention is to provide an electrical connection structure of an electric meter box with good contact according to the current state of the prior art.
  • an installation structure for a base of an electric meter box comprising a casing, a plurality of bases arranged on the casing, and a connection element arranged in each base, and is characterized in that: A plurality of bases are arranged at intervals, each base has a through hole for the connecting element to pass through, and the through holes of two adjacent bases are communicated for the integrated connecting element to pass through.
  • the perforations of two adjacent bases are aligned in the extending direction of the connecting element. In this way, it is convenient for the connecting element to pass through two adjacent bases, thereby facilitating the installation of the connecting element.
  • connection element can be various, preferably, the connection element includes at least one of a live wire copper bar, a neutral wire copper bar and a signal line, and the number of the through holes corresponds to the number of the connection elements.
  • connection elements include live wire copper bars, neutral wire copper bars and signal wires.
  • the signal wires, live wire copper bars and neutral wire copper bars all run through two adjacent bases along their respective extending directions. .
  • each base is provided with an insulating mounting seat for signal wire installation, and two adjacent insulating mounting seats are connected left and right;
  • Each of the insulating mounts is used to separate a strong current part and a weak current part, the strong current part includes the live wire copper bar and the neutral wire copper bar, and the weak current part includes a signal wire.
  • the extending directions of the insulating mounting seat, the live wire copper bar, the neutral wire copper bar and the signal wire are the same.
  • the insulating mounting seat can separate the strong current part and the weak current part in the extending direction, so that the strong current part and the weak current part can be separated to a greater extent.
  • the positions of the live wire copper bar and the neutral wire copper bar can be various.
  • the insulating mounting base has a forwardly open accommodating cavity, and the weak current part is located in the accommodating cavity.
  • the neutral wire copper bar is located outside the accommodating cavity of the insulating mount. In this way, the strong electric part and the weak electric part can be kept as far away as possible, thereby reducing the interference of the strong electric part to the weak electric part.
  • the structure of the insulating mounting seat can be various, preferably, the insulating mounting seat includes a connecting plate, a first convex edge extending forward from the upper end of the connecting plate, and a second convex edge extending forward from the lower end of the connecting plate,
  • the connecting plate, the first protruding edge and the second protruding edge enclose the accommodating cavity, and the weak current part is mounted on the connecting plate.
  • the first convex edge and the second convex edge can further separate the strong current portion and the weak current portion.
  • the weak current part further includes a first metal contact portion connected to the signal line, the insulating mounting base has a slot communicated with the accommodating cavity for accommodating the rear end of the first metal contact portion, the first metal contact portion The front end is exposed on the front side of the base.
  • the signal line and the first metal contact part are an integral piece.
  • the insulating mounting seat has a seat body that is mated and connected with the rear end of the first metal contact portion;
  • the seat body has a first opening portion extending forward and a second opening portion extending laterally, and the first opening portion and the second opening portion are communicated to form the slot for accommodating the first metal contact portion;
  • the first metal contact portion includes a first portion extending forward and a second portion extending laterally connected to the rear of the first portion, the first portion being fitted with the first opening, and the second portion being fitted with the second opening adaptation.
  • the first metal contact portion is clamped and limited with the groove wall of the card slot, so that the disassembly and assembly of the first metal contact portion is convenient and quick.
  • the signal line is a 485 signal line.
  • the base In order to facilitate assembly and maintenance, the base includes a detachably connected front half shell and a rear half shell.
  • the operation space is large because the rear half shell has not been installed, which is convenient for assembly.
  • the rear half shell can be removed.
  • connection structures of the front half shell and the rear half shell preferably, one of the upper side and the lower side of the front half shell is connected to the rear half shell through a first plug structure, The other of the upper side and the lower side of the front half-shell is connected to the rear half-shell by a first fastener.
  • the first plug-in structure includes a first protrusion and a first accommodating groove, and the first protrusion is provided on the front half shell. and one of the rear half shells, the first accommodating groove is provided on the other of the front half shell and the rear half shell.
  • an electrical connection structure of an electric meter box adopting the installation structure of the electric meter box base as described above, comprising an electric meter, a first metal contact portion, and a second metal contact portion.
  • the first metal contact portion is arranged in the base and exposed to the base, and the second metal contact portion is arranged at the corresponding position of the electric meter and exposed to the electric meter.
  • the base and the electric meter are connected, the first metal contact portion and the second The metal contact parts are in contact, and it is characterized in that: at least one of the first metal contact part and the second metal contact part has elasticity and has a tendency to approach the other.
  • the positions of the first metal contact portion and the second contact portion can be various.
  • the first metal contact portion is exposed on the front sidewall of the base, and the second metal contact portion is exposed on the rear sidewall of the meter.
  • At least one of the first metal contact portion and the second metal contact portion has elasticity in the front-rear direction, and has a tendency to approach the other.
  • the front end of the first metal contact portion has elasticity, so that the front end has a tendency to be electrically connected to the electric meter in front of the base.
  • the first metal contact portion can have various structures, preferably, the first metal contact portion includes an elastic metal thimble, and the elastic metal thimble includes a needle tube that is electrically connected to the wire, can be moved forward and backward relative to the needle tube, and is used to communicate with the electric meter.
  • the connecting needle, connecting the needle tube and the return spring of the needle head, the return spring supports the needle head forward so that the needle head always has a tendency to be close to the second metal contact part; .
  • the second metal contact part has a groove for accommodating the front end of the needle
  • the first metal contact portion protrudes out of the front side wall of the base, and the second metal contact portion is substantially flush with the rear side wall of the electric meter.
  • the first metal contact portion protrudes out of the base, which facilitates observation of the position of the first metal contact portion, and the second metal contact portion has a groove to facilitate the positioning of the first metal contact portion, thereby facilitating contact between the two.
  • the electric meter has pins protruding from the rear side wall and used for electrical connection with the socket in the base, and the pins are arranged at intervals from the second metal contact portion. In this way, after the electric meter is installed on the base and installed in place, the pins of the electric meter are hidden and are not easily accessible, so that the safety is higher.
  • connection structure of the electric meter and the base can be various.
  • one of the upper side and the lower side of the electric meter is connected to the base through a second plug structure
  • the other one of the upper and lower sides of the electric meter is connected to the base through a second plug structure.
  • the side and the base are connected by a second fastener.
  • the second plug structure includes a second protrusion and a second accommodating groove for accommodating the second protrusion, and the second protrusion is provided on the electricity meter and the base.
  • the second accommodating slot is arranged on the other of the meter and the base.
  • the connecting element is an integral piece without splicing individual connecting elements, and the connecting element is installed so that the connecting element penetrates through the corresponding through hole, so that the installation efficiency of the base is high.
  • the strong current part and the weak current part are separated by the insulating mount, the strong current part is not easy to interfere with the weak current part and affect the signal transmission, the measurement is more accurate, and the safety is improved at the same time;
  • the signal line and the first metal contact part are integrated into one piece. In this way, during installation, the first metal contact part can be directly placed in the required position without screwing the first metal contact part and the signal line, and then fixed to the bottom. In this way, the installation of the signal line and the first metal contact portion on the base is quicker and the installation efficiency is higher.
  • the electrical connection structure of the meter box using the above-mentioned mounting structure of the meter box seat has elasticity in the front-rear direction through at least one of the first metal contact portion and the second metal contact portion.
  • the elastic metal When the meter is close to the base, the elastic metal The contact part is compressed and has a tendency to rebound.
  • it can be compensated to a certain extent by elastic expansion, so that the first metal contact part and the second metal contact part are in good contact, and the processing and Assembly accuracy requirements are low.
  • FIG. 1 is a schematic perspective view of an electric meter box to which the installation structure of the electric meter box base according to an embodiment of the present invention is applied;
  • Fig. 2 is the schematic diagram of Fig. 1 after removing part of the casing
  • Fig. 3 is the assembly schematic diagram of the base, the electric meter and the connecting element etc. in Fig. 2;
  • Fig. 4 is the exploded view of Fig. 3;
  • Fig. 5 is the enlarged view of part A in Fig. 4;
  • FIG. 6 is an exploded view of the insulating mount, the signal line and the first metal contact
  • Fig. 7 is another exploded view of Fig. 3;
  • FIG. 8 is a three-dimensional schematic diagram of an electricity meter in an embodiment of the present invention.
  • Figure 10 is an enlarged view of part A in Figure 9;
  • Figure 11 is another cross-sectional view of the base and the electricity meter.
  • FIGS. 1 to 11 it is a preferred embodiment of the electric meter box to which the electrical connection structure of the electric meter box is applied.
  • the electrical connection structure of the meter box includes the installation structure of the meter box base, the meter 4, the second metal contact portion 6, and the like.
  • the installation structure of the meter box base includes a housing 100 with an accommodating cavity, a plurality of bases 1 arranged in the accommodating cavity, an integral connecting element 2 arranged in each base 1, an insulating mounting seat 3, and a first metal contact portion. 5 and so on.
  • the bases 1 have a plurality of bases 1 arranged left and right, and are divided into upper and lower groups.
  • Each base 1 has a transversely extending through hole 1a for the connecting element 2 to pass through (FIG. 4), and the through holes 1a of the two adjacent bases 1 are connected left and right for the connecting element 2 to pass through, preferably, the left and right adjacent
  • the through holes 1a of the two bases 1 are aligned left and right, so that it is convenient for the connecting element 2 to pass through.
  • each base 1 includes a front half-shell 11 and a rear half-shell 12 that are detachably connected.
  • the base 1 of the upper group is connected with the upper side of the front half-shell 11 and the rear half-shell 12 through a first plug-in structure, and the lower side of the front half-shell 11 and the rear half-shell 12 are connected by a first fastening structure.
  • Firmware 13 is connected to each other, the base 1 of the next group is that the lower side of the front half-shell 11 is connected with the rear half-shell 12 through a first plug-in structure, and the upper side of the front half-shell 11 and the rear half-shell 12 are connected by a first tightening structure.
  • Firmware 13 is connected.
  • the first plug-in structure includes a first protrusion 111 and a first accommodating groove 121 whose size and shape are adapted. Referring to FIG.
  • the first protrusion 111 is provided on the front half-shell 11
  • the first accommodating groove 121 is provided in the rear half of the housing 12 .
  • the positions of the first protrusion 111 and the first accommodating groove 121 can also be interchanged, and the front half-shell 11 and the rear half-shell 12 can also be detachably connected by tight fitting or the like.
  • the first fastener 13 is a screw or a lead-sealed bolt and lead-sealed wire.
  • connection element 2 includes a live wire copper bar 21, a neutral wire copper bar 22 and a signal wire 23, the number of the through holes 1a corresponds to the number of the connection elements 2, the signal wire 23, the live wire copper bar 21 and the zero wire
  • the copper wire bars 22 all pass through the two adjacent bases 1 left and right.
  • each base 1 is provided with an insulating mounting seat 3 for the installation of the signal line 23,
  • the insulating mounting seat 3 can be made of plastic material, and two adjacent insulating mounting seats 3 are connected left and right, and each insulating mounting seat 3 It is used to separate the strong current part and the weak current part.
  • the strong current part includes the live wire copper bar 21, the neutral wire copper bar 22, and is arranged on part of the live wire copper bar 21 and the neutral wire copper bar 22 for plugging with the pin 41 of the meter 4
  • the weak current part includes a signal wire 23 and a first metal contact portion 5 connected to the signal wire 23.
  • the insulating mount 3 has a slot 311 communicating with the accommodating cavity for accommodating the rear end of the first metal contact portion 5 , and the front end of the first metal contact portion 5 is exposed on the front side of the base 1 , preferably, the first metal contact portion 5 is exposed to the front side of the base 1 .
  • the part 5 protrudes out of the front side wall 15 of the base 1 , so that it is convenient to see the position of the first metal contact part 5 and to be in contact with the second metal part 6 .
  • the signal line 23 and the first metal contact portion 5 are integrated into one piece, so that the signal line 23 and the first metal contact portion 5 do not need to be assembled, thereby reducing the assembly process.
  • the insulating mounting seat 3 , the live wire copper bar 21 , the neutral wire copper bar 22 and the signal wire 23 extend in the same direction, so that the strong current part and the weak current part can be separated in a large range.
  • the entire live wire copper bar 21, the entire neutral wire copper bar 22, and the entire signal wire 23 are used to pass through the two adjacent bases 1, so that there is no need to splicing at the positions of the two adjacent bases 1, and the installation efficiency is high .
  • the live wire copper bar 21 and the neutral wire copper bar 22 are located on the rear side of the insulating mounting seat 3, and the insulating mounting seat 3 has an accommodation cavity that is opened forward, and the weak current part is located in the accommodation cavity, that is, the signal wire 23 is in contact with the first metal.
  • the part 5 is located on the front side of the insulating mount 3, so that the signal line 23 and the first contact part 5 are not easily affected by the live wire copper bar 21, the neutral wire copper bar 22, the live wire copper bar 21 and the neutral wire copper bar 21 and the neutral wire copper bar arranged in part of the strong current part.
  • the interference of the socket 7 used for plugging with the pin 41 of the meter 4 on the row 22, that is, the strong current part and the weak current part are relatively separated to reduce the interference of the strong current part and the weak current part, and increase the accuracy of the meter 4 measurement and signal transmission stability.
  • the insulating mount 3 includes a connecting plate 31 , a first protruding edge 32 extending forward from the upper end of the connecting plate 31 , and a second protruding edge 33 extending forward from the lower end of the connecting plate 31 .
  • the protruding edge 32 and the second protruding edge 33 enclose a accommodating cavity, the weak current part is installed on the connecting plate 31 , and the first protruding edge 32 and the second protruding edge 33 are beneficial to further separate the strong current part and the weak current part.
  • the connecting plate 31 has a seat body 3a which is mated and connected with the rear end of the first metal contact portion 5.
  • the seat body 3a has a first opening portion 311a extending forward and a second opening portion 311b extending laterally. 311a and the second opening 311b communicate with each other to form a card slot 311 for accommodating the first metal contact portion 5.
  • the size and shape of the card slot 41 are adapted to the size and shape of the first metal contact portion 5, so that the first For the installation and positioning of the metal contact portion 5, the card slots 311 are multiple and spaced apart.
  • the role of the strong current part and the weak current part also has the role of clamping the first metal contact part 5 .
  • the insulating mounting seat 3 can also be provided in other shapes as required.
  • Each base 1 has two first metal contact parts 5 , and the two first metal contact parts 5 are arranged at intervals.
  • the first metal contact parts 5 are arranged in the base 1 and exposed to the front side wall 15 of the base 1 , preferably, The first metal contact portion 5 protrudes out of the front side wall 15 of the base 1 , so that the position of the first metal contact portion 5 can be easily seen and contact with the second metal portion 6 is facilitated.
  • the front end of the first metal contact part 5 has elasticity, so that the front end has a tendency to be electrically connected to the electric meter 4 in front of the base 1, so that when there is a processing or assembly error, the first metal contact part can pass through the first metal contact part.
  • the first metal contact portion 5 includes an elastic metal thimble
  • the elastic metal thimble includes a needle tube 51 that is electrically connected to the wire, and can be moved relative to the needle tube 51 in a forward and backward position and is used for
  • the needle 52 electrically connected to the meter 4, the return spring 53 connecting the needle tube 51 and the needle head 52, the return spring 53 supports the needle head 52 forward so that the needle head 52 always has a tendency to be close to the second metal contact part 6; the head of the needle tube 51
  • each first metal contact portion 5 has a groove 61 for accommodating the front end of the needle 52 , which facilitates the positioning of the needle 52 .
  • each first metal contact portion 5 includes a first portion 54 extending forward (in this embodiment, the first portion 54 includes a needle tube 51 , a needle 52 and a return spring 53 ) and is connected to the rear of the first portion 54 and is transverse
  • the extended second portion 55, the first portion 54 is adapted to the size and shape of the first opening portion 311a
  • the second portion 55 is adapted to the size and shape of the second opening portion 311b.
  • the first metal contact portion 5 may also use a metal dome or a metal elastic column.
  • the number of the second metal parts 6 is the same as the number of the first metal parts 5 .
  • Each second metal contact portion 6 is disposed at a position corresponding to the electric meter 4 and is exposed on the rear sidewall 43 of the electric meter 4 .
  • the first metal contact portion 5 tends to approach the second metal contact portion 6 due to its elasticity in the front-rear direction.
  • only the second metal contact portion 6 may have elasticity in the front-rear direction and tend to approach the first metal contact portion 5 , or both the first metal contact portion 5 and the second metal contact portion 6 may be Elasticity in both front and rear directions.
  • the signal line 23 is a 485 signal line
  • the corresponding second metal contact portion is a 485 connection port, and the type of the signal line 23 can also be adjusted as required.
  • the second metal contact portion 6 is positioned with a groove 61 for accommodating the front end of the needle 52 , and the second metal contact portion 6 is substantially flush with the rear sidewall 43 of the meter 4 .
  • the electric meter 4 has pins 41 protruding from the rear sidewall 43 and used for electrical connection with the socket 7 in the base 1 .
  • the pins 41 are arranged at intervals from the second metal contact portion 6 .
  • the electric meters 4 are also divided into upper and lower groups.
  • the electric meters 4 in the upper group are connected with the upper side of the electric meters 4 and the base 1 through the second plug-in structure , the lower side of the electricity meter 4 is connected to the base through a second fastener, and the lower side of the electricity meter 4 in the following group (one of the electricity meters in the following group is shown in the accompanying drawing) is the lower side of the electricity meter 4 and the base 1 through the second plug connection
  • the structure is connected, and the upper side of the electric meter 4 is connected with the base 1 through a second fastener.
  • the second plug structure includes a second bump 42 and a second accommodating groove 14 for accommodating the second bump 42 , the second bump 42 is provided on the electric meter 4 , and the second accommodating groove 14 Set on the base 1, in other embodiments, the positions of the second bump 42 and the second accommodating groove 14 can also be interchanged, the second fastener can be sealed with screws or lead, and the lead can be sealed with the prior art, For example, it includes lead-sealed wires and lead-sealed bolts.
  • the rear half shell 12 is connected to the inner wall of the outer shell 100, the live wire copper bar 21 and the neutral wire copper bar 22 are installed in the rear half shell 12, and then the insulating mounting seat 3 is fixed to the rear half shell 12, and the The signal line 23 is installed in the accommodating cavity of the insulating mounting base 3, so that the live wire copper bar 21, the neutral wire copper bar 22 and the signal wire 23 traverse the two adjacent bases 1, so that the connecting elements 2 of the two adjacent bases 1 can be connected.
  • the connecting elements 2 of the same row of bases 1 can be installed together, and the connecting elements 2 pass through the corresponding through holes 1a, without the need to install the individual connecting elements 2 in a single base 1 and then connect the connecting elements 2, so that the base 1
  • the installation efficiency is high, and the front half shell 11 is finally installed, so that when the connecting element 2 is installed, because the front half shell 11 has not been installed, the operation space is relatively large, and the installation is relatively convenient.
  • the strong current part and the weak current part are separated by the insulating mount 3, and the strong current part is not easy to interfere with the weak current part, so the measurement is more accurate, and the signal transmission is relatively stable.
  • the number of bases 1 can be expanded according to needs, so as to meet diverse needs and have wide applicability. Then snap the first metal contact portion 5 into the slot 311 of the insulating mounting base 3, because the first metal contact portion 5 and the signal line 23 are one piece, thus the signal line 23 and the first metal contact portion 5 are completed. The installation requires no screwing, and the installation is quick. Finally, connect the front half-shell 11 to the rear half-shell 12 .
  • a corresponding number of bases 1 can be installed according to different needs, but these bases 1 can be produced by using the same mold for a single base 1 , and there is no need to set molds of different sizes due to different numbers of bases 1 .
  • the second metal contact portion 6 and the first The metal contact parts 5 are in contact with each other because the first metal contact part 5 has elasticity.
  • the first metal contact part 5 is compressed and has a tendency to move forward. Therefore, the connection between the first metal contact part 5 and the second metal contact part 6 is relatively stable and in good contact.
  • the electric meter 4 and the base 1 are connected with the second fastener, so that the pins 11, the first metal contact part 5 and the second metal contact part 5 are connected with each other.
  • the metal contact part 6 is hidden, it is not easy to be touched from the outside, the safety is high, and electricity theft is prevented. Plug the pins 41 of the electric meter 4 into the sockets 7 in the base to achieve electrical connection between the two, and at the same time, the second metal contact portion 6 of the electric meter 4 is in contact with the first metal contact portion 5, so that the electric meter 4 and the base 1 can be realized. signal transmission between.

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Abstract

一种电表箱底座(1)的安装结构，包括外壳(100)、设置在外壳(100)上的多个底座(1)以及设置在各底座(1)内的连接元件(2)，多个底座(1)间隔排列，每个底座(1)具有用于连接元件(2)穿过的穿孔(1a)，相邻的两个底座(1)的穿孔(1a)相连通以供一体的连接元件(2)穿过。采用了电表箱底座(1)的安装结构的电表箱的电气连接结构，使得第一金属接触部(5)和第二金属接触部(6)接触良好，对加工和装配精度要求较低。

Description

一种电表箱底座的安装结构及其电表箱的电气连接结构 技术领域
本发明涉及电表箱技术领域，具体涉及一种电表箱底座的安装结构及其电表箱的电气连接结构。
背景技术
电表箱是一种按电气接线要求将开关设备、测量仪表、保护电器和辅助设备组装在壳体内的装置。电表箱一般包括外壳、分别设置在外壳内的底座和电表。底座用于固定电表、给电表供电和进行信号传输等。
例如，申请号为CN201320062767.8(公告号为CN203084032U)的中国实用新型专利公开了《一种导电轨式集成电表箱》，它由箱体、导电轨、绝缘隔板和插滑式电能表等组成，箱体上开有放置导电轨的导电轨放置槽，导电轨上制作有电能表插接装置，导电轨放置槽上覆盖有绝缘隔板，绝缘隔板上开制有电能表滑动卡装孔、电能表插滑接电孔、信号接点和信号总线；绝缘隔板上装有插滑式电能表和分支开关。该专利将表箱内传统的布线方式改变成通过导电轨插滑或插接的安装方式，布线规范，电连接点的接触面积更大，接触面积可达到70％；将烦琐、重复的人工布线工作通过车间的流水线生产代替，大大降低了电表箱的生产和施工的综合成本，使电能计量装置的安装更规范、便捷。该专利中电能表与电力插接装置滑插连接，但是没有公开电能表滑插连接的具体结构。但是该专利没有公开给电表供电的底座的其它安装结构。一般是将单个底座先各自装配好各自的连接元件，再将相邻两个底座内的两个连接元件相连，安装工序较多，这样底座的安装效率较低。
另外，申请号为CN201721601403.7(公告号为CN207518148U)的中国实用新型公开了《一种移动基站用电表箱》，该电表箱包括箱体和箱盖，箱体内设有竖直的格挡板，格挡板将箱体内的空间分隔为强电腔室和弱电腔室，强电腔室内设有智能电表和电源模块，弱电腔室内设有集中器、风管和环境控制器，风管内设有风扇，箱体的右侧壁设有天线开孔，一个天线罩罩在天线开孔的外侧并与箱体右侧壁固定连接，还包括门磁开关，箱体的右侧壁上设有门磁开关的开关部分，天线罩内设有门磁开关的磁铁部分。该专利将箱体分设为强电腔室和弱电腔室，提高了弱电腔室内的设备的抗干扰能力。但是该专利中，强电腔室内设有智能电表和电源模块，弱电腔室内设有集中器、风管和环境控制器，而没有公开火线铜排、零线铜排与信号线的安装结构。又如，申请号为CN201520025616.4(公告号为CN204304237U)的中国实用新型专利公开了《零火分离布线的电表箱》，该电表箱包括箱体，在箱体内部的内壁设有安装板，安装板设有火线输入接口、 零线输入接口、至少一个电表安装位、零线输出线槽、零线输入线槽和输出线孔，零线输入接口通过沿着零线输入线槽排布的输入零线与电表安装位相连，电表安装位通过沿着零线输出线槽排布的输出零线与输出线孔相连。该专利中，火线和零线被绝缘隔板隔开，降低了各类漏触电事故的发生，安全系数更高，但是没有公开火线零线与信号线的安装结构。而火线铜排和零钱铜排属于强电部分，信号线属于弱电部分，如果强电部分和弱电部分距离太近，强电部分容易干扰弱电部分，从而影响计量准确性、信号传输的稳定性等。
其次，申请号为CN201320062767.8(公告号为CN203084032U)的中国实用新型专利公开了《一种导电轨式集成电表箱》，该专利中电能表与电力插接装置滑插连接，但是没有公开电能表底座中信号线的安装结构。一般信号线和金属连接部是断开的，需要通过螺钉将两者相连，并固定到底座上，这样将信号线和金属连接部组装到底座上的过程比较费时，安装效率较低。
最后，申请号为CN201320062767.8(公告号为CN203084032U)的中国实用新型专利公开了《一种导电轨式集成电表箱》，该专利中电能表与电力插接装置滑插连接，但是没有公开其它的电气连接结构。又如，申请号为CN201620282852.9(公告号为CN205484486U)的中国实用新型专利公开了一种《插拔式电表》，该插拔式电表包括表本体和底座，表本体通过其底部的插拔片插接于底座上，所述插拔片上设置有止退构件。该结构能防止插接后表本体与底座之间相互松动，甚至出现表本体从底座上脱离的现象，保证了插拔式电表的插接可靠性，但是没有公开其它的电气连接结构。一般涉及信号线的电连接，主要采用硬连接的方式，具体是分别设置在底座和电表上的两个金属接触部为铜柱，底座和电表相连时，两个铜柱相接触而实现电连接，当存在加工误差或者装配误差时，两个铜柱容易出现接触不良的问题，从而影响电表和底座的电连接。
因此，还可对电表箱底座的安装结构及其电表箱的电气连接结构作进一步的改进。
发明内容
本发明所要解决的第一个技术问题是针对现有技术的现状，提供一种底座安装效率较高的电表箱底座的安装结构。
本发明所要解决的第二个技术问题是针对现有技术的现状，提供一种强电部分不容易干扰弱电部分的电表箱底座的安装结构。
本发明所要解决的第三个技术问题是针对现有技术的现状，提供一种信号线和金属连接部安装效率较高的电表箱底座的安装结构。
本发明所要解决的第四个技术问题是针对现有技术的现状，提供一种接触良好的电表箱的电气连接结构。
本发明解决上述第一个技术问题所采用的技术方案为：一种电表箱底座的安装结 构，包括外壳、设置在外壳上的多个底座以及设置在各底座内的连接元件，其特征在于：多个底座间隔排列，每个底座具有用于连接元件穿过的穿孔，相邻的两个底座的穿孔相连通以供一体的连接元件穿过。
为了便于连接元件安装，相邻的两个底座的穿孔在连接元件的延伸方向上对齐。这样便于连接元件穿过相邻两个底座，从而便于连接元件的安装。
连接元件的结构可以有多种，优选地，所述连接元件包括火线铜排、零线铜排和信号线中的至少一个，所述穿孔的个数与连接元件的数量相对应。
连接元件可以有多种，优选地，所述连接元件包括火线铜排、零线铜排和信号线，信号线、火线铜排和零线铜排均沿各自的延伸方向贯穿相邻两个底座。
为进一步解决本发明的第二个技术问题所采用的技术方案为：每个底座内设置有用于信号线安装的绝缘安装座，相邻两个绝缘安装座左右连通；
各所述绝缘安装座用于隔开强电部分和弱电部分，所述强电部分包括所述火线铜排和零线铜排，所述弱电部分包括信号线。
为了较大程度地分隔强电部分和弱电部分，所述绝缘安装座、火线铜排、零线铜排和信号线的延伸方向一致。这样绝缘安装座在延伸方向上均能分隔强电部分和弱电部分，从而能较大程度地起到分隔强电部分和弱电部分的作用。
所述火线铜排和零线铜排的位置可以有多种，优选地，所述绝缘安装座具有向前敞口的容纳腔，所述弱电部分位于该容纳腔内，所述火线铜排和零线铜排位于绝缘安装座的容纳腔外。这样，可以使强电部分与弱电部分尽量远离，从而减少强电部分对弱电部分的干扰。
绝缘安装座的结构可以有多种，优选地，所述绝缘安装座包括连接板、自连接板的上端向前延伸的第一凸沿、自连接板的下端向前延伸的第二凸沿，连接板、第一凸沿和第二凸沿围成所述容纳腔，所述弱电部分安装在连接板上。第一凸沿和第二凸沿可以进一步隔开强电部分和弱电部分。
进一步，所述弱电部分还包括与信号线相连的第一金属接触部，所述绝缘安装座具有与容纳腔连通的用于容纳第一金属接触部的后端的卡槽，该第一金属接触部的前端外露于底座的前侧。
为进一步解决本发明的第三个技术问题所采用的技术方案为：所述信号线与第一金属接触部为一体件。
为了对第一金属接触部进行限位，所述绝缘安装座具有与第一金属接触部的后端插配连接的座体；
所述座体具有向前延伸的的第一开口部和横向延伸的第二开口部，第一开口部和第二开口部相连通而组成用于容纳第一金属接触部的所述卡槽；
所述第一金属接触部包括向前延伸的第一部分和与第一部分的后部相连且横向延 伸的第二部分，该第一部分与第一开口部适配，该第二部分与第二开口部适配。
第一金属接触部与卡槽的槽壁卡接限位，从而第一金属接触部拆装方便快捷。
优选地，所述信号线为485信号线。
为了便于装配和维护，所述底座包括可拆卸连接的前半壳体和后半壳体。这样安装底座内的零件时，因为还未安装后半壳体而操作空间较大，便于装配，需要维护时，拆下后半壳体即可。
前半壳体和后半壳体的可拆卸连接结构可以有多种，优选地，所述前半壳体的上侧和下侧中的其中一侧与后半壳体通过第一插接结构相连，前半壳体的上侧和下侧中的另一侧与后半壳体通过第一紧固件相连。
第一插接结构可以有多种，优选地，为了便于拆装，所述第一插接结构包括适配的第一凸块和第一容纳槽，所述第一凸块设置在前半壳体和后半壳体的其中一个上，所述第一容纳槽设置在前半壳体和后半壳体的另一个上。通过设置第一凸块和第一容纳槽插接配合，便于快速拆装。
本发明解决上述第四个技术问题所采用的技术方案为：一种采用了如上述的电表箱底座的安装结构的电表箱的电气连接结构，包括电表、第一金属接触部、第二金属接触部，所述第一金属接触部设置在底座内且外露于底座，所述第二金属接触部设置在电表对应的位置且外露于电表，底座和电表相连时，第一金属接触部和第二金属接触部相接触，其特征在于：所述第一金属接触部和第二金属接触部中的至少一个具有弹性，而具有靠近另一个的趋势。
第一金属接触部和第二接触部的位置可以有多种，优选地，所述第一金属接触部外露于底座的前侧壁，所述第二金属接触部外露于电表的后侧壁，所述第一金属接触部和第二金属接触部中的至少一个在前后方向上具有弹性，而具有靠近另一个的趋势。
优选地，所述第一金属接触部的前端具有弹性，而使该前端具有与底座前方的电表电连接的趋势。
第一金属接触部可以有多种结构，优选地，所述第一金属接触部包括弹性金属顶针，弹性金属顶针包括与导线电连接的针管、能相对针管前后限位移动且用于与电表电连接的针头、连接针管和针头的复位弹簧，该复位弹簧向前支撑针头而使针头始终具有靠近第二金属接触部的趋势；所述针管的头部具有防止针头弹出针管外的限位凸块。
为了便于第一金属接触部和第二金属接触部接触，所述第二金属接触部具有用于容纳针头的前端的凹槽；
所述第一金属接触部伸出底座的前侧壁外，所述第二金属接触部与电表的后侧壁大致齐平。
通过第一金属接触部伸出底座外，这样便于观察第一金属接触部的位置，第二金属接触部具有凹槽而便于第一金属接触部定位，从而便于两者接触。
为了提高安全性，所述电表具有伸出其后侧壁且用于与底座内的插座电连接的插脚，该插脚与第二金属接触部间隔排列。这样电表安装到底座上安装到位后，电表的插脚被隐藏而不容易被接触到，从而安全性较高。
电表和底座的连接结构可以有多种，优选地，所述电表的上侧和下侧的其中一侧与底座通过第二插接结构相连，所述电表的上侧和下侧中的另外一侧与底座通过第二紧固件相连。
第二插接结构可以有多种，优选地，所述第二插接结构包括第二凸块和用于容纳第二凸块的第二容纳槽，所述第二凸块设置在电表和底座的其中一个上，所述第二容纳槽设置在电表和底座的另一个上。通过设置第二凸块和第二容纳槽，便于快速拆装。
与现有技术相比，本发明的优点在于：
相邻两个底座相连通，连接元件采用一体件而无需将单个的连接元件进行拼接，安装连接元件使连接元件贯穿对应的穿孔，这样底座的安装效率较高。
在改进的方案中，通过绝缘安装座隔开强电部分和弱电部分，强电部分不容易干扰弱电部分而影响信号传输，计量等比较准确，同时提高了安全性；
通过信号线与第一金属接触部为一体件，这样安装时，直接将第一金属接触部放置到需要的位置即可，而无需拧螺钉将第一金属接触部与信号线相连，再固定到底座上，这样，信号线和第一金属接触部在底座上的安装比较快捷，安装效率较高。
采用了上述电表箱座的安装结构的电表箱的电气连接结构，通过第一金属接触部和第二金属接触部中的至少一个在前后方向上具有弹性，当电表靠近底座时，具有弹性的金属接触部被压缩而具有回弹趋势，当存在零件加工或装配误差时，能在一定程度上通过弹性伸缩作用得到补偿，从而使得第一金属接触部和第二金属接触部接触良好，对加工和装配精度要求较低。
附图说明
图1为应用有本发明实施例的电表箱底座的安装结构的电表箱的立体示意图；
图2为图1去掉部分外壳后的示意图；
图3为图2中底座、电表和连接元件等的装配示意图；
图4为图3的分解图；
图5为图4中局部A的放大图；
图6为绝缘安装座、信号线和第一金属接触部的分解图；
图7为图3的另一分解图；
图8为本发明实施例中电表的立体示意图；
图9为底座和电表的在前后方向上的剖视图；
图10为图9中局部A的放大图；
图11为底座和电表的另一剖视图。
具体实施方式
以下结合附图实施例对本发明作进一步详细描述。
如图1～图11所示，为应用有电表箱的电气连接结构的电表箱的一个优选实施例。
在发明的说明书及权利要求书中使用了表示方向的术语，诸如“前”、“后”、“上”、“下”、“左”、“右”、“侧”等，用来描述本发明的各种示例结构部分和元件，但是在此使用这些术语只是为了方便说明的目的，是基于附图中显示的示例方位而确定的。由于本发明所公开的实施例可以按照不同的方向设置，所以这些表示方向的术语只是作为说明而不应视作为限制，比如“上”、“下”并不一定被限定为与重力方向相反或一致的方向。
电表箱的电气连接结构包括电表箱底座的安装结构、电表4、第二金属接触部6等。
其中，电表箱底座的安装结构包括具有容纳腔的外壳100、设置在容纳腔内的多个底座1、设置在各底座1内的一体的连接元件2、绝缘安装座3、第一金属接触部5等。
本实施例中，底座1具有多个且左右排列，分为上下两组。每个底座1具有横向延伸且用于连接元件2穿过的穿孔1a(图4)，左右相邻的两个底座1的穿孔1a左右连通以供连接元件2穿过，优选地，左右相邻的两个底座1的穿孔1a左右对齐，这样便于连接元件2穿过。为了便于装配，每个底座1包括可拆卸连接的前半壳体11和后半壳体12。本实施例中，上面一组的底座1是前半壳体11的上侧与后半壳体12通过第一插接结构相连，前半壳体11的下侧与后半壳体12通过第一紧固件13相连，下面一组的底座1是前半壳体11的下侧与后半壳体12通过第一插接结构相连，前半壳体11的上侧与后半壳体12通过第一紧固件13相连。具体地，第一插接结构包括大小和形状适配的第一凸块111和第一容纳槽121，参见图4，第一凸块111设置在前半壳体11上，第一容纳槽121设置在后半壳体12。在其它实施例中，第一凸块111和第一容纳槽121的位置也可以互换，前半壳体11和后半壳体12也可以通过紧配合等实现可拆卸连接。优选地，第一紧固件13为螺钉或铅封螺栓铅封线。
参见图5、图6，连接元件2包括火线铜排21、零线铜排22和信号线23，穿孔1a的个数与连接元件2的数量相对应，信号线23、火线铜排21和零线铜排22均左右贯穿相邻两个底座1。
参见图5、图6，每个底座1内设置有用于信号线23安装的绝缘安装座3，绝缘安装座3可以采用塑料材质，相邻两个绝缘安装座3左右连通，各绝缘安装座3用于隔开强电部分和弱电部分，强电部分包括火线铜排21、零线铜排22、设置在部分火线铜排21和零线铜排22上用于与电表4的插脚41插接的插座7，弱电部分包括信号线23、与 信号线23相连的第一金属接触部5。绝缘安装座3具有与容纳腔连通的用于容纳第一金属接触部5的后端的卡槽311，该第一金属接触部5的前端外露于底座1的前侧，优选地，第一金属接触部5伸出底座1的前侧壁15外，这样便于看到第一金属接触部5的位置和便于与第二金属部6接触。为了减少装配工序，信号线23与第一金属接触部5为一体件，这样无需组装信号线23和第一金属接触部5，从而减少了装配工序。绝缘安装座3、火线铜排21、零线铜排22和信号线23的延伸方向一致，这样可以较大范围地起到分隔强电部分和弱电部分的作用。采用整根火线铜排21、整根零线铜排22、整条信号线23来穿过相邻的两个底座1，这样无需在相邻两个底座1的位置进行拼接，安装效率较高。火线铜排21和零线铜排22位于绝缘安装座3的后侧，绝缘安装座3具有向前敞口的容纳腔，弱电部分位于该容纳腔内，也就是信号线23和第一金属接触部5位于绝缘安装座3的前侧，这样信号线23和第一接触部5不容易受到强电部分的火线铜排21、零线铜排22、设置在部分火线铜排21和零线铜排22上用于与电表4的插脚41插接的插座7的干扰，也就是强电部分和弱电部分被相对隔开，以减少强电部分和弱电部分的干扰，增加电表4计量的准确性和信号传输的稳定性。具体地，绝缘安装座3包括连接板31、自连接板31的上端向前延伸的第一凸沿32、自连接板31的下端向前延伸的第二凸沿33，连接板31、第一凸沿32和第二凸沿33围成容纳腔，弱电部分安装在连接板31上，第一凸沿32和第二凸沿33有利于进一步隔开强电部分和弱电部分。连接板31具有与第一金属接触部5的后端插配连接的座体3a，座体3a具有向前延伸的的第一开口部311a和横向延伸的第二开口部311b，第一开口部311a和第二开口部311b相连通而组成用于容纳第一金属接触部5的卡槽311，该卡槽41的大小和形状与第一金属接触部5的大小和形状适配，以便第一金属接触部5的安装定位，卡槽311具有多个且间隔排列，信号线23和第一金属接触部5的个数均与卡槽311的个数对应，这样绝缘安装座3除了起到分隔强电部分和弱电部分的作用，还具有用于卡接第一金属接触部5的作用。在其它实施例中，绝缘安装座3也可以根据需要设置成其它形状。
每个底座1具有两个第一金属接触部5，两个第一金属接触5部间隔排列，第一金属接触部5设置在底座1内且外露于底座1的前侧壁15，优选地，第一金属接触部5伸出底座1的前侧壁15外，这样便于看到第一金属接触部5的位置和便于与第二金属部6接触。为了确保电连接稳定性，第一金属接触部5的前端具有弹性，而使该前端具有与底座1前方的电表4电连接的趋势，这样当存在加工或装配误差时，通过第一金属接触部5的弹性的部分可以得到补偿，确保实现电表4和第一金属接触部5前端的稳定电连接。具体地，参见图5、图6、图9、图10，第一金属接触部5包括弹性金属顶针，弹性金属顶针包括与导线电连接的针管51、能相对针管51前后限位移动且用于与电表4电连接的针头52、连接针管51和针头52的复位弹簧53，该复位弹簧53向前支撑针头52而使针头52始终具有靠近第二金属接触部6的趋势；针管51的头部具有防止针 头52弹出针管51外的限位凸块511。第二金属接触部6具有用于容纳针头52的前端的凹槽61，这样便于对针头52进行定位。参见图6，各第一金属接触部5包括向前延伸的第一部分54(本实施例中，第一部分54包括针管51、针头52和复位弹簧53)和与第一部分54的后部相连且横向延伸的第二部分55，该第一部分54与第一开口部311a大小和形状适配，该第二部分55与第二开口部311b大小和形状适配。在其它实施例中，第一金属接触部5也可以采用金属弹片或者金属弹性柱。
第二金属部6的个数与第一金属部5的个数相同。各第二金属接触部6设置在电表4对应的位置且外露于电表4的后侧壁43。底座1和电表4相连时，第一金属接触部5和第二金属接触部6相接触，第一金属接触部5因在前后方向上具有弹性，而具有靠近第二金属接触部6的趋势。在其它实施例中，也可以仅第二金属接触部6在前后方向上具有弹性而具有靠近第一金属接触部5的趋势，也可以是第一金属接触部5和第二金属接触部6均在前后方向上均具有弹性。当信号线23为485信号线时，对应地第二金属接触部为485接线端口，信号线23的种类也可以根据需要调整。
参见图8、图9、图10，第二金属接触部6具有用于容纳针头52的前端的凹槽61定位，第二金属接触部6与电表4的后侧壁43大致齐平。
参见图7～图10，电表4具有伸出其后侧壁43且用于与底座1内的插座7电连接的插脚41，该插脚41与第二金属接触部6间隔排列。本实施例中，电表4也分为上下两组，上面一组的电表4(附图示意了上面一组中的其中一个电表)是电表4的上侧与底座1通过第二插接结构相连，电表4的下侧与底座通过第二紧固件相连，下面一组的电表4(附图示意了下面一组中的其中一个电表)是电表4的下侧与底座1通过第二插接结构相连，电表4的上侧与底座1通过第二紧固件相连。具体地，参见图11，第二插接结构包括第二凸块42和用于容纳第二凸块42的第二容纳槽14，第二凸块42设置在电表4上，第二容纳槽14设置在底座1上，在其它实施例中，第二凸块42和第二容纳槽14的位置也可以互换，第二紧固件可以采用螺钉或铅封锁，铅封锁可以采用现有技术，例如包括铅封线、铅封螺栓。
本实施例的电表箱的电气连接结构的工作原理和使用过程如下。
安装时，将后半壳体12与外壳100的内壁相连，将火线铜排21和零线铜排22安装在后半壳体12中，接着绝缘安装座3与后半壳体12固定，将信号线23安装在绝缘安装座3的容纳腔内，使火线铜排21、零线铜排22和信号线23横垮相邻两个底座1，这样相邻两个底座1的连接元件2可以一起安装，例如同一排底座1的连接元件2可以一起安装，连接元件2贯穿对应的穿孔1a，而无需将单个的连接元件2分别安装在单个底座1中后再连接连接元件2，这样底座1的安装效率较高，最后再安装前半壳体11，这样安装连接元件2时，因为还没有安装前半壳体11，所以操作空间比较大，安装比较方便。
另外，强电部分和弱电部分被绝缘安装座3隔开，强电部分不容易干扰弱电部分，这样计量等比较准确，信号传输比较稳定。底座1的数量可以根据需要进行扩展，从而满足多样化的需求，适用性较广。再将第一金属接触部5卡入绝缘安装座3的卡槽311中，因为第一金属接触部5和信号线23为一体件，这样即完成了信号线23和第一金属接触部5的安装，无需拧螺钉，安装快捷，最后再将前半壳体11与后半壳体12相连，具体是将前半壳体11的第一凸块111插入后半壳体12的第一容纳槽121中，再将前半壳体11与后半壳体12通过第一紧固件13相连。可以根据不同的需要安装对应个数的底座1，但是这些底座1都可以采用相同的单个底座1的模具进行生产，而无需因为底座1的个数不同而设置不同大小的模具。
安装电表4时，先将电表4的第二凸块42插入底座1的第二容纳槽21中，接着将电表4的插脚41插入底座1的插座7，同时第二金属接触部6与第一金属接触部5相抵，因为第一金属接触部5具有弹性，当电表4的后侧壁43靠近底座1的前侧壁15时，第一金属接触部5被压缩而具有向前运动的趋势，从而使得第一金属接触部5和第二金属接触部6连接比较稳定、接触良好，最后将电表4与底座1通过第二紧固件相连，这样插脚11、第一金属接触部5和第二金属接触部6被隐藏起来，从外面不容易被接触到，安全性较高，防窃电。将电表4的插脚41与底座内的插座7插接，从而实现两者的电连接，同时电表4的第二金属接触部6与第一金属接触部5相抵，这样可以实现电表4和底座1之间的信号传输。

Claims (23)

  1. 一种电表箱底座的安装结构，包括外壳(100)、设置在外壳(100)上的多个底座(1)以及设置在各底座(1)内的连接元件(2)，其特征在于：多个底座(1)间隔排列，每个底座(1)具有用于连接元件(2)穿过的穿孔(1a)，相邻的两个底座(1)的穿孔(1a)相连通以供一体的连接元件(2)穿过。
  2. 根据权利要求1所述的安装结构，其特征在于：相邻的两个底座(1)的穿孔(1a)在连接元件(2)的延伸方向上对齐。
  3. 根据权利要求1所述的安装结构，其特征在于：所述连接元件(2)包括火线铜排(21)、零线铜排(22)和信号线(23)中的至少一个，所述穿孔(1a)的个数与连接元件(2)的数量相对应。
  4. 根据权利要求3所述的安装结构，其特征在于：所述连接元件(2)包括火线铜排(21)、零线铜排(22)和信号线(23)，信号线(23)、火线铜排(21)和零线铜排(22)均沿各自的延伸方向贯穿相邻两个底座(1)。
  5. 根据权利要求4所述的安装结构，其特征在于：每个底座(1)内设置有用于信号线(23)安装的绝缘安装座(3)，相邻两个绝缘安装座(3)左右连通；
    各所述绝缘安装座(3)用于隔开强电部分和弱电部分，所述强电部分包括所述火线铜排(21)和零线铜排(22)，所述弱电部分包括信号线(23)。
  6. 根据权利要求5所述的安装结构，其特征在于：所述绝缘安装座(3)、火线铜排(21)、零线铜排(22)和信号线(23)的延伸方向一致。
  7. 根据权利要求5所述的安装结构，其特征在于：所述绝缘安装座(3)具有向前敞口的容纳腔，所述弱电部分位于该容纳腔内，所述火线铜排(21)和零线铜排(22)位于绝缘安装座(3)的容纳腔外。
  8. 根据权利要求7所述的安装结构，其特征在于：所述绝缘安装座(3)包括连接板(31)、自连接板(31)的上端向前延伸的第一凸沿(32)、自连接板(31)的下端向前延伸的第二凸沿(33)，连接板(31)、第一凸沿(32)和第二凸沿(33)围成所述容纳腔，所述弱电部分安装在连接板(31)上。
  9. 根据权利要求7所述的安装结构，其特征在于：所述弱电部分还包括与信号线(23)相连的第一金属接触部(5)，所述绝缘安装座(3)具有与容纳腔连通的用于容纳第一金属接触部(5)的后端的卡槽(311)，该第一金属接触部(5)的前端外露于底座(1)的前侧。
  10. 根据权利要求9所述的安装结构，其特征在于：所述信号线(23)与第一金属接触部(5)为一体件。
  11. 根据权利要求9所述的安装结构，其特征在于：所述绝缘安装座(3)具有与第一 金属接触部(5)的后端插配连接的座体(3a)；
    所述座体(3a)具有向前延伸的的第一开口部(311a)和横向延伸的第二开口部(311b)，第一开口部(311a)和第二开口部(311b)相连通而组成用于容纳第一金属接触部(5)的所述卡槽(311)；
    所述第一金属接触部(5)包括向前延伸的第一部分(54)和与第一部分(54)的后部相连且横向延伸的第二部分(55)，该第一部分(54)与第一开口部(311a)适配，该第二部分(55)与第二开口部(311b)适配。
  12. 根据权利要求4～11中任一项所述的安装结构，其特征在于：所述信号线(23)为485信号线。
  13. 根据权利要求1～11中任一项所述的安装结构，其特征在于：所述底座(1)包括可拆卸连接的前半壳体(11)和后半壳体(12)。
  14. 根据权利要求13所述的安装结构，其特征在于：所述前半壳体(11)的上侧和下侧中的其中一侧与后半壳体(12)通过第一插接结构相连，前半壳体(11)的上侧和下侧中的另一侧与后半壳体(12)通过第一紧固件(13)相连。
  15. 根据权利要求14所述的安装结构，其特征在于：所述第一插接结构包括适配的第一凸块(111)和第一容纳槽(121)，所述第一凸块(111)设置在前半壳体(11)和后半壳体(12)的其中一个上，所述第一容纳槽(121)设置在前半壳体(11)和后半壳体(12)的另一个上。
  16. 一种采用了如权利要求1～15中任一项所述的电表箱底座的安装结构的电表箱的电气连接结构，包括电表(4)、第一金属接触部(5)、第二金属接触部(6)，所述第一金属接触部(5)设置在底座(1)内且外露于底座(1)，所述第二金属接触部(6)设置在电表(4)对应的位置且外露于电表(4)，底座(1)和电表(4)相连时，第一金属接触部(5)和第二金属接触部(6)相接触，其特征在于：所述第一金属接触部(5)和第二金属接触部(6)中的至少一个具有弹性，而具有靠近另一个的趋势。
  17. 根据权利要求16所述的电气连接结构，其特征在于：所述第一金属接触部(5)外露于底座(1)的前侧壁(15)，所述第二金属接触部(6)外露于电表(4)的后侧壁(43)，所述第一金属接触部(5)和第二金属接触部(6)中的至少一个在前后方向上具有弹性，而具有靠近另一个的趋势。
  18. 根据权利要求17所述的电气连接结构，其特征在于：所述第一金属接触部(5)的前端具有弹性，而使该前端具有与底座(1)前方的电表(4)电连接的趋势。
  19. 根据权利要求16所述的电气连接结构，其特征在于：所述第一金属接触部(5)包括弹性金属顶针，弹性金属顶针包括与导线电连接的针管(51)、能相对针管(51)前后限位移动且用于与电表(4)电连接的针头(52)、连接针管(51)和针头(52)的复位弹簧(53)， 该复位弹簧(53)向前支撑针头(52)而使针头(52)始终具有靠近第二金属接触部(6)的趋势；所述针管(51)的头部具有防止针头(52)弹出针管(51)外的限位凸块(511)。
  20. 根据权利要求19所述的电气连接结构，其特征在于：所述第二金属接触部(6)具有用于容纳针头(52)的前端的凹槽(61)；
    所述第一金属接触部(5)伸出底座(1)的前侧壁(15)外，所述第二金属接触部(6)与电表(4)的后侧壁(43)大致齐平。
  21. 根据权利要求17所述的电气连接结构，其特征在于：所述电表(4)具有伸出其后侧壁(43)且用于与底座(1)内的插座(7)电连接的插脚(41)，该插脚(41)与第二金属接触部(6)间隔排列。
  22. 根据权利要求16～21中任一项所述的电气连接结构，其特征在于：所述电表(4)的上侧和下侧的其中一侧与底座(1)通过第二插接结构相连，所述电表(4)的上侧和下侧中的另外一侧与底座(1)通过第二紧固件相连。
  23. 根据权利要求22所述的电气连接结构，其特征在于：所述第二插接结构包括第二凸块(42)和用于容纳第二凸块(42)的第二容纳槽(14)，所述第二凸块(42)设置在电表(4)和底座(1)的其中一个上，所述第二容纳槽(14)设置在电表(4)和底座(1)的另一个上。
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