CN104833831A - Ammeter housing and ammeter - Google Patents
Ammeter housing and ammeter Download PDFInfo
- Publication number
- CN104833831A CN104833831A CN201510247742.9A CN201510247742A CN104833831A CN 104833831 A CN104833831 A CN 104833831A CN 201510247742 A CN201510247742 A CN 201510247742A CN 104833831 A CN104833831 A CN 104833831A
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- terminal
- terminal block
- shunt
- ammeter
- block
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Abstract
The invention discloses an ammeter housing and an ammeter, for solving the problems of difficult dissipation of heat generated by a conventional ammeter shunt and affected measuring precision. The ammeter comprises electronic components, a cover and the ammeter housing. The ammeter housing comprises an accommodation housing, the accommodation housing comprises a wiring cavity and an electric appliance cavity for accommodating the electronic components, the wiring cavity is internally provided with a terminal box, the terminal box is internally provided with a shunt, multiple wiring terminals and multiple function terminals, the shunt is arranged behind the wiring terminals, the shunt is provided with a lead wire penetrating the terminal box for connection with the electronic components in the electric appliance cavity, the terminal box comprises a base and a cover plate, the shunt is arranged on the base, and the base and the cover plate cooperate to form an accommodation isolation cavity for isolating the shunt from the electric appliance cavity. The ammeter housing and the ammeter have the advantages of simple structure, convenient assembling, good heat dissipation performance, high measuring accuracy, reliable wiring, small energy consumption, low fault rate and the like.
Description
Technical field
The present invention relates to a kind of ammeter, be specifically related to a kind of ammeter housing and ammeter.
Background technology
Ammeter is the abbreviation of electric energy meter, is used to
measurethe instrument of electric energy, also known as watt-hour meter, energy meter.Upper cover and the pedestal manufacturing procedure of existing ammeter terminal box are many and assorted, are not easy to realize robotization, process simplification; Comparatively waterproof rank is low for integral structure, is difficult to meet IP54 or higher waterproof rank, easily seeps water.In addition, ammeter housing is divided into two accommodating cavities by existing terminal box, shunt and ammeter functional module are sealed in (in electric apparatus chamber) in a chamber, connection terminal is (in wire connection cavity) in another one cavity, when it is installed, shunt is welded on the web joint of red copper, web joint is connected by screw again on the copper bar of terminal box, copper bar is the brass of central hollow, such structure installment is cumbersome, energy consumption is large, the heat simultaneously too increasing electric apparatus chamber produces, the red copper web joint simultaneously increased adds the length of current return, the accuracy that impact is measured.In addition because electric apparatus chamber must need sealing, it is also sealing close-fitting that copper bar inserts electric apparatus chamber, and the heat that such shunt produces just not easily falls apart from terminal box copper bar.Shunt is installed in electric apparatus chamber and easily makes electric energy meter cause because electric current is fully loaded inner intensification to damage internal electronic component, also make the metering in intelligent electric meter sample simultaneously and be easily subject to power frequency magnetic field interference, easily cause metering distortion, continuous data is inaccurate, also has that wiring is too much, loop is long, the insecure problem of wiring.
Summary of the invention
Not easily distributing for solving the heat that in background technology, existing ammeter shunt produces, affecting measuring accuracy problem, the invention provides a kind of ammeter housing and ammeter.
Technical scheme of the present invention is: a kind of ammeter housing, comprise accommodating housing, described accommodating housing comprises wire connection cavity and the electric apparatus chamber for holding electronic element, terminal box is provided with in described wire connection cavity, shunt is provided with in described terminal box, multiple connection terminal and multiple function terminal, the rear of connection terminal is located at by described shunt, described shunt is provided with through the wire of terminal box for being connected with electronic component in electric apparatus chamber, described terminal box comprises base and cover plate, described shunt is located on base, described base and cover plate coordinate formation by shunt and the separated accommodating separate cavities of electric apparatus chamber.
As a modification of the present invention, described shunt is connected with terminal block, and described terminal block is connected with connection terminal.
As a modification of the present invention, described connection terminal comprises the first terminal, the second terminal, the 3rd terminal and the 4th terminal, described terminal block comprises distinguishes corresponding the first terminal block, the second terminal block, the 3rd terminal block and the 4th terminal block with the first terminal, the second terminal, the 3rd terminal, the 4th terminal, the first described terminal block is connected by shunt with the 4th terminal block, and the second described terminal block is connected with the 3rd terminal block.
As a further improvement on the present invention, the second described terminal block is connected by vertical wiring board with the 3rd terminal block, described vertical wiring board is provided with wiring hole, described terminal box is provided with the wire hole corresponding with wiring hole, and the level height of described wiring hole is higher than the level height of the 4th terminal block.
As a further improvement on the present invention, the second described terminal block, vertical wiring board, the 3rd terminal block are integral type structure, and described vertical wiring board is that this integral structure bending is formed.
As a further improvement on the present invention, described connection terminal comprises the first terminal, the second terminal, the 3rd terminal and the 4th terminal, described terminal block comprises distinguishes corresponding the first terminal block, the second terminal block, the 3rd terminal block and the 4th terminal block with the first terminal, the second terminal, the 3rd terminal, the 4th terminal, the first described terminal block is connected by shunt with the second terminal block, and the 3rd described terminal block is connected with the 4th terminal block.
As a further improvement on the present invention, the 3rd described terminal block is connected by horizontal terminal block with the 4th terminal block, and the 3rd described terminal block, horizontal terminal block, the 4th terminal block are integral type structure.
As a further improvement on the present invention, described base is provided with convex tendon, and described connection terminal and shunt are all located on convex tendon, forms heat dissipation cavity between described shunt and base.
As a further improvement on the present invention, the air hole that described cover plate is provided with venting cavity and is connected with venting cavity, described venting cavity is connected with accommodating separate cavities by heat dissipation cavity.
A kind of ammeter, comprise electronic component, cap and above-mentioned ammeter housing, described electronic component is located in electric apparatus chamber.
The invention has the beneficial effects as follows, devise a kind of ammeter housing, shunt is loaded in terminal box together with connection terminal, the electronic component of shunt and ammeter is separated, components and parts in the heat damages ammeter avoiding shunt place to produce, also avoid electronic component to be subject to power frequency magnetic field interference simultaneously, affect measurement accuracy.It is simple that the present invention also has structure, processing, easy to assembly, and perfect heat-dissipating, accuracy of measurement is high, and wiring is reliable, and power consumption is few, the advantages such as failure rate is low.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the embodiment of the present invention.
Accompanying drawing 2 is the structural representation of the embodiment of the present invention one.
Accompanying drawing 3 is the structural representation of accompanying drawing 2 cover plate 22.
Accompanying drawing 4 is the structural representation after removing cover plate 22 in accompanying drawing 2.
Accompanying drawing 5 is the structural representation of base 21 in accompanying drawing 4.
Accompanying drawing 6 is the structural representation of the embodiment of the present invention two.
Accompanying drawing 7 is the structural representation after removing cover plate 22 in accompanying drawing 6.
In figure, 1, accommodating housing; 11, wire connection cavity; 12, electric apparatus chamber; 2, terminal box; 21, base; 211, convex tendon; 212, heat dissipation cavity; 22, cover plate; 221, accommodating separate cavities; 222, venting cavity; 223, air hole; 23, wire hole; 24, counter; 3, shunt; 31, wire; 4, connection terminal; 41, the first terminal; 42, the second terminal; 43, the 3rd terminal; 44, the 4th terminal; 5, function terminal; 6, terminal block; 61, the first terminal block; 62, the second terminal block; 63, the 3rd terminal block; 64, the 4th terminal block; 65, vertical wiring board; 651, wiring hole; 66, horizontal terminal block.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention is further illustrated:
Embodiment one: shown in accompanying drawing 1-5, a kind of ammeter housing and ammeter, this ammeter comprises electronic component, cap and ammeter housing, and described electronic component is located in electric apparatus chamber 12.Described ammeter housing comprises accommodating housing 1, described accommodating housing 1 comprises wire connection cavity 11 and the electric apparatus chamber 12 for holding electronic element, terminal box 2 is provided with in described wire connection cavity 11, shunt 3, multiple connection terminal 4 and multiple function terminal 5 is provided with in described terminal box 2, function terminal is used for tripping operation, Pulse Width Control, has also reserved the connecting groove of other functions.Described shunt 3 is located at the rear of connection terminal 4 (referring to accompanying drawing 1, close connection terminal is front, close electric apparatus chamber is rear), described shunt 3 is provided with through the wire 31 of terminal box 2 for being connected with electronic component in electric apparatus chamber 12, described terminal box 2 comprises base 21 and cover plate 22, described shunt 3 is located on base 21, and described base 21 and cover plate 22 coordinate formation by shunt 3 and the separated accommodating separate cavities 221 of electric apparatus chamber 12.Described accommodating separate cavities 221 is arranged on cover plate 22, makes shunt and electric apparatus chamber seal isolation open when cover plate lid is placed on base, is to separate towards the side sealing of electric apparatus chamber in diagram.The heat that shunt produces can dispel the heat from connection terminal.Certainly, accommodating separate cavities also can be arranged on base.Base is provided with semicircle logical wire casing, cover plate is also provided with semicircle logical wire casing and first circular logical wire casing of corresponding base, every two semicircles are led to wire casing and are formed the through hole accessing electric apparatus chamber for shunt wire, certainly can overlap an O-ring seal on shunt wire, can ensure like this to wear the tightness of wire through hole place.Like this arrange ensure wire and shunt reliably spacing, wire difficult drop-off in work.Described terminal box 2 is provided with and the counter 24 of cap by press fit, and the design of counter makes there is record when opening cap at every turn, avoids non-working person's maloperation to open, and avoids phenomenon of sneaking current.The invention has the beneficial effects as follows, devise a kind of ammeter housing, shunt is loaded in terminal box together with connection terminal, the electronic component of shunt and ammeter is separated, components and parts in the heat damages ammeter avoiding shunt place to produce, also avoid electronic component to be subject to power frequency magnetic field interference simultaneously, affect measurement accuracy.It is simple that the present invention also has structure, processing, easy to assembly, and perfect heat-dissipating, accuracy of measurement is high, and wiring is reliable, and power consumption is few, the advantages such as failure rate is low.
Described shunt 3 is connected with terminal block 6, and described terminal block 6 is connected with connection terminal 4.Described connection terminal 4 comprises the first terminal 41, second terminal 42, the 3rd terminal 43 and the 4th terminal 44, described terminal block 6 comprises distinguishes corresponding the first terminal block 61, second terminal block 62, the 3rd terminal block 63 and the 4th terminal block 64 with the first terminal 41, second terminal 42, the 3rd terminal 43, the 4th terminal 44, the first described terminal block 61 is connected by shunt 3 with the 4th terminal block 64, and the second described terminal block 62 is connected with the 3rd terminal block 63.The first terminal 41 is live wire inlet wire, and the 4th terminal 44 is live wire outlet, and the second terminal 42 is zero line inlet wire, and the 3rd terminal 43 is zero line outlet.Live wire inlet wire is connected by shunt with live wire outlet.Described shunt adopts copper-manganese material to make.The second described terminal block 62 is connected by vertical wiring board 65 with the 3rd terminal block 63, described vertical wiring board 65 is provided with wiring hole 651, described terminal box 2 is provided with the wire hole 23 corresponding with wiring hole 651, and the level height of described wiring hole 651 is higher than the level height of the 4th terminal block 64.The second described terminal block 62, vertical wiring board 65, the 3rd terminal block 63 are integral type structure, and described vertical wiring board 65 is that this integral structure bending is formed.Described shunt directly welds with the first terminal block and the 4th terminal block, decrease middle fixing link, reduce energy consumption, and the heat that shunt produces can not enter electric apparatus chamber, heat can distribute from connection terminal, and such structure makes each terminal block easy-to-connect, avoids electric current that shunt produces to interfere electronic component in electric apparatus chamber, make systematic survey more accurate, make Product processing convenient and reliable simultaneously.
Described base 21 is provided with convex tendon 211, and described connection terminal 4 and shunt 3 are all located on convex tendon 211, forms heat dissipation cavity 212 between described shunt 3 and base 21.The heat dissipation cavity being arranged so that connection terminal, producing the gas circulation being convenient to gas circulation between shunt and base of convex tendon, is convenient to product heat radiation.This heat dissipation cavity is connected with connection terminal, and the hole of connection terminal point of incoming cables also may be used for heat radiation.The air hole 223 that described cover plate 22 is provided with venting cavity 222 and is connected with venting cavity 222, described venting cavity 222 is connected with accommodating separate cavities 221 by heat dissipation cavity 212.Such structure is convenient to the heat radiation of product, and cover plate also can arrange convex tendon.Can not only heat dissipation channel be formed like this, and can better carry out spacing to shunt.
Described base 21 and cover plate 22 phase clamping or be threaded.Such structure is convenient to the connection of product.
Embodiment two: referring to accompanying drawing 1,6,7, described connection terminal 4 comprises the first terminal 41, second terminal 42, the 3rd terminal 43 and the 4th terminal 44, described terminal block 6 comprises distinguishes corresponding the first terminal block 61, second terminal block 62, the 3rd terminal block 63 and the 4th terminal block 64 with the first terminal 41, second terminal 42, the 3rd terminal 43, the 4th terminal 44, the first described terminal block 61 is connected by shunt 3 with the second terminal block 62, and the 3rd described terminal block 63 is connected with the 4th terminal block 64.The 3rd described terminal block 63 is connected by horizontal terminal block 66 with the 4th terminal block 64, and the 3rd described terminal block 63, horizontal terminal block 66, the 4th terminal block 64 are integral type structure, which is provided with the wire inserting electric apparatus chamber.Such structure makes each terminal block easy-to-connect, shortens the distance of current return, reduces energy consumption, makes systematic survey more accurate simultaneously.The first terminal 41 is live wire inlet wire, and the second terminal 42 is live wire outlet, and the 3rd terminal 43 is zero line inlet wire, and the 4th terminal 44 is zero line outlet.Live wire inlet wire is connected by shunt with live wire outlet.Described shunt adopts copper-manganese material to make.Described shunt directly welds with the first terminal block and the second terminal block.Which reduce middle fixing link, reduce energy consumption, and the heat that shunt produces can not enter electric apparatus chamber, heat can distribute from connection terminal, such structure makes each terminal block easy-to-connect, avoid electric current that shunt produces to interfere electronic component in electric apparatus chamber, make systematic survey more accurate, make Product processing convenient and reliable simultaneously.The key distinction of embodiment one and embodiment two is that the mode of connection between terminal is distinguished.
Every technician's notice: although the present invention describes according to above-mentioned embodiment, invention thought of the present invention is not limited in this invention, and the repacking of any utilization inventive concept, all will include in this patent scope of patent protection.
Claims (10)
1. an ammeter housing, comprise accommodating housing (1), described accommodating housing (1) comprises wire connection cavity (11) and the electric apparatus chamber (12) for holding electronic element, it is characterized in that: in described wire connection cavity (11), be provided with terminal box (2), shunt (3) is provided with in described terminal box (2), multiple connection terminal (4) and multiple function terminal (5), the rear of connection terminal (4) is located at by described shunt (3), described shunt (3) is provided with through the wire (31) of terminal box (2) for being connected with electric apparatus chamber (12) interior electronic component, described terminal box (2) comprises base (21) and cover plate (22), described shunt (3) is located on base (21), described base (21) and cover plate (22) coordinate formation by shunt (3) and the separated accommodating separate cavities (221) of electric apparatus chamber (12).
2. ammeter housing according to claim 1, it is characterized in that described shunt (3) is connected with terminal block (6), described terminal block (6) is connected with connection terminal (4).
3. ammeter housing according to claim 2, it is characterized in that described connection terminal (4) comprises the first terminal (41), second terminal (42), 3rd terminal (43) and the 4th terminal (44), described terminal block (6) comprises and the first terminal (41), second terminal (42), 3rd terminal (43), the first terminal block (61) that 4th terminal (44) is corresponding respectively, second terminal block (62), 3rd terminal block (63) and the 4th terminal block (64), described the first terminal block (61) is connected by shunt (3) with the 4th terminal block (64), described the second terminal block (62) is connected with the 3rd terminal block (63).
4. ammeter housing according to claim 3, it is characterized in that described the second terminal block (62) is connected by vertical wiring board (65) with the 3rd terminal block (63), described vertical wiring board (65) is provided with wiring hole (651), described terminal box (2) is provided with the wire hole (23) corresponding with wiring hole (651), and the level height of described wiring hole (651) is higher than the level height of the 4th terminal block (64).
5. ammeter housing according to claim 4, is characterized in that described the second terminal block (62), vertical wiring board (65), the 3rd terminal block (63) is integral type structure, and described vertical wiring board (65) is that this integral structure bending is formed.
6. ammeter housing according to claim 2, it is characterized in that described connection terminal (4) comprises the first terminal (41), second terminal (42), 3rd terminal (43) and the 4th terminal (44), described terminal block (6) comprises and the first terminal (41), second terminal (42), 3rd terminal (43), the first terminal block (61) that 4th terminal (44) is corresponding respectively, second terminal block (62), 3rd terminal block (63) and the 4th terminal block (64), described the first terminal block (61) is connected by shunt (3) with the second terminal block (62), the 3rd described terminal block (63) is connected with the 4th terminal block (64).
7. ammeter housing according to claim 6, it is characterized in that the 3rd described terminal block (63) is connected by horizontal terminal block (66) with the 4th terminal block (64), the 3rd described terminal block (63), horizontal terminal block (66), the 4th terminal block (64) are integral type structure.
8. ammeter housing according to claim 1, it is characterized in that described base (21) is provided with convex tendon (211), described connection terminal (4) and shunt (3) are all located on convex tendon (211), form heat dissipation cavity (212) between described shunt (3) and base (21).
9. ammeter housing according to claim 8, it is characterized in that the air hole (223) that described cover plate (22) is provided with venting cavity (222) and is connected with venting cavity (222), described venting cavity (222) is connected with accommodating separate cavities (221) by heat dissipation cavity (212).
10. an ammeter, is characterized in that: comprise electronic component, cap and ammeter housing according to claim 1, described electronic component is located in electric apparatus chamber (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510247742.9A CN104833831A (en) | 2015-05-15 | 2015-05-15 | Ammeter housing and ammeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510247742.9A CN104833831A (en) | 2015-05-15 | 2015-05-15 | Ammeter housing and ammeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104833831A true CN104833831A (en) | 2015-08-12 |
Family
ID=53811842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510247742.9A Pending CN104833831A (en) | 2015-05-15 | 2015-05-15 | Ammeter housing and ammeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104833831A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108415291A (en) * | 2018-05-30 | 2018-08-17 | 珠海格力电器股份有限公司 | Electric control box |
| CN116647984A (en) * | 2023-06-10 | 2023-08-25 | 江苏斯菲尔电气股份有限公司 | Shunt installation equipment |
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| CN103913612A (en) * | 2014-04-03 | 2014-07-09 | 安徽永安电子科技有限公司 | Terminal base for electric meter |
| CN204575710U (en) * | 2015-05-15 | 2015-08-19 | 温州万星电气有限公司 | A kind of ammeter housing and ammeter |
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2859545Y (en) * | 2005-12-31 | 2007-01-17 | 华立仪表集团股份有限公司 | Electric energy meter with inverting seat |
| CN201126443Y (en) * | 2007-12-10 | 2008-10-01 | 深圳市科陆电子科技股份有限公司 | Connection terminal kit of electric energy meter |
| WO2011083223A1 (en) * | 2009-12-22 | 2011-07-14 | Itron France | Phase current measurement module for an electrical counter, provided with a current cut-off function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108415291A (en) * | 2018-05-30 | 2018-08-17 | 珠海格力电器股份有限公司 | Electric control box |
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| CN116647984A (en) * | 2023-06-10 | 2023-08-25 | 江苏斯菲尔电气股份有限公司 | Shunt installation equipment |
| CN116647984B (en) * | 2023-06-10 | 2024-05-28 | 江苏斯菲尔电气股份有限公司 | Shunt installation equipment |
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Application publication date: 20150812 |
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