CN105606860A - Converter without interruption of power supply during plugging of electric energy meter and meter holder with converter - Google Patents
Converter without interruption of power supply during plugging of electric energy meter and meter holder with converter Download PDFInfo
- Publication number
- CN105606860A CN105606860A CN201510780445.0A CN201510780445A CN105606860A CN 105606860 A CN105606860 A CN 105606860A CN 201510780445 A CN201510780445 A CN 201510780445A CN 105606860 A CN105606860 A CN 105606860A
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- converter
- electric energy
- energy meter
- change
- over switch
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Abstract
The invention discloses a converter without interruption of power supply during plugging of an electric energy meter and a meter holder with the converter. The converter comprises a converter body, the converter body comprises a casing and a changeover switch in rotation connection with the casing, the changeover switch is provided with a metal contact for connecting plugging terminals, and the changeover switch rotates the linked metal contact to be connected with or separated from the plugging terminals. The meter holder is not powered off when the electric energy meter is plugged due to the fact that the converter body has two state changing manners; generally, power is supplied to residents normally and the electric energy meter is installed, the electric energy meter needs to be connected to meter electric energy, the converter body is adjusted to a disconnected state, namely, the metal contact is separated from the plugging terminals, and current flows through the electric energy meter; and power supply is not interrupted when the electric energy meter is replaced or maintained by working staff, continuous power supply of residents is ensured, and operation is extremely convenient.
Description
Technical field
The present invention relates to a kind of electric energy meter mounting structure, more particularly, it relates to a kind of the plug converter of not power-off of electric energy meter and the table holder with this converter.
Background technology
In existing batch meter, electric energy meter is in the time of maintenance or replacing, often need to pull down electric energy meter, now inevitably to give user's power-off, just can restore electricity in maintenance or after changing electric energy meter, the demand of now household electricity is huge, can have a strong impact on like this daily life, even bring massive losses also can to country or individual in power-off at crucial moment.
To this, patent documentation CN203433022U discloses a kind of connection box of electric energy meter end external member, comprise base, and be arranged on this base and with connection box of electric energy meter end two hot terminal and two zero line binding posts one to one, described base front surface is separately installed with the live wire input terminal being electrically connected with feeder ear live wire, as the live wire outlet terminal of electricity consumption end live wire incoming end, and as the zero line outlet terminal of electricity consumption end zero line incoming end, hot terminal corresponding to electric energy meter live wire end of incoming cables is electrically connected with feeder ear live wire, hot terminal corresponding to electric energy meter live wire leading-out terminal is electrically connected with live wire outlet terminal, zero line binding post corresponding to electric energy meter zero line leading-out terminal is electrically connected with zero line outlet terminal, described base front surface is provided with the support that can move freely along through-bore axis by least two limiting plates with holes, on this support, be separately installed with to rise to move with one and be connected with live wire outlet terminal or the live wire connection copper sheet disconnecting and the zero line connection copper sheet that is connected with leading outlet terminal or disconnects for controlling zero line input terminal with control live wire input terminal, described base front surface is provided with for aforementioned each terminal, copper sheet and support are closed in to inner upper cover. repair and change electric energy meter by adopting connection box of electric energy meter end external member in above-mentioned patent documentation can realize continuous electric-examination, the inconvenience bringing when effectively avoiding maintenance and changing electric energy meter, but although structure in above-mentioned patent documentation has good result of use, but still Shortcomings: structure relative complex, required amount of parts is more, and cost is high.
For the problems referred to above, the Chinese patent that application number is 201520400156.9 discloses a kind of table holder that can realize the not power-off of plug electric energy meter, which is provided with the limit base of pluggable terminals and spacing fixing pluggable terminals; On limit base, form slot with pluggable terminals correspondence position, in slot, be fitted with plugging member, the conductive component that is suitable for conducting homophase two pluggable terminals is housed on plugging member; Conductive component is set on plugging member, after plugging member inserts slot, by homophase two pluggable terminals conductings, (one is input terminal to conductive component, one is lead-out terminal, input terminal and lead-out terminal are connected to form path through conductive component), thereby can power continuously can guarantee dismounting electric energy meter time, after electric energy meter is loaded onto, extract plugging member and can cut off path herein, make electric current through electric energy meter.
Although by optimization rational in infrastructure, reduced the use of parts, when concrete operations in such scheme, plugging member need to be taken out repeatedly, install, plug each time electric energy meter and repeat once this operation, occupation mode is more loaded down with trivial details, also may have the situation of omitting plugging member for operating personnel.
Summary of the invention
The deficiency existing for prior art, the object of the present invention is to provide a kind of converter and table holder thereof of not power-off of plug electric energy meter easy to use.
For achieving the above object, the invention provides following technical scheme: a kind of converter that plugs not power-off of electric energy meter, it is characterized in that: comprise converter body, the change-over switch that described converter body comprises housing and is rotationally connected with it, described change-over switch is provided with the Metal Contact sheet for conducting pluggable terminals, and change-over switch rotates interlock Metal Contact sheet and pluggable terminals clutch.
Pass through technique scheme, in the time of plug electric energy meter, can hold in the palm not power-off by realization table, it realizes the constantly principle of electricity is that converter body has two state conversion regimes, when resident's normal power supply electric energy meter installs in the ordinary course of things, electric energy meter need to be connected the effect that realizes metering electric energy, now converter body is adjusted to off-state, namely Metal Contact sheet is separated with pluggable terminals, realize electric current and flow through from electric energy meter; In another situation, electric energy meter need to be changed or keep in repair, now inevitably need to take off electric energy meter, but taking off before electric energy meter first by change-over switch Metal Contact sheet and pluggable terminals conducting, now be equivalent to electric energy meter by short circuit, whether electric energy meter takes off does not affect normal power supply, when having avoided staff to change or having keeped in repair electric energy meter, cause power supply to stop, ensure resident living continued power, install after electric energy meter in next time, change-over switch is adjusted to open position, realize the metering of electric energy meter, it is extremely convenient to operate.
The present invention is further set to: described Metal Contact sheet is plugged on change-over switch, and described housing is provided with the accommodating groove for holding Metal Contact sheet, rotates change-over switch and drives Metal Contact sheet to rotate and regain in housing.
Pass through technique scheme, operation change-over switch is realized the rotation of Metal Contact sheet, namely realize the clutch of Metal Contact sheet and pluggable terminals, and Metal Contact sheet can also be regained in the accommodating groove of housing by rotating, reach the effect of connecting and disconnecting of the circuit, be convenient to take out converter simultaneously and realize installation replacing.
The present invention is further set to: described converter body also comprises the position-limit mechanism of restriction change-over switch activity.
Pass through technique scheme, realized the maintenance of converter body state by position-limit mechanism, namely in the time of Metal Contact sheet and pluggable terminals conducting, position-limit mechanism can be kept conducting, when operation change-over switch arrives the state of another converter body, Metal Contact sheet and pluggable terminals disconnect, position-limit mechanism keeps its disconnection, therefore realized the stability of its structure, avoid pluggable terminals under non-artificial condition, to pass through the unexpected conducting of converter body or disconnection, ensured that electric energy meter variable is accurate
The present invention is further set to: described change-over switch comprises salient angle, change-over switch drives salient angle to rotate, described position-limit mechanism comprises pushing block, pushing block is provided with projection, described projection and housing both sides inwall form respectively buckling groove, described salient angle is connected in buckling groove, and described position-limit mechanism also comprises that promoting pushing block makes salient angle be connected in the elastic component in buckling groove.
Pass through technique scheme, can be understood as the locus conversion of the salient angle that the state conversion of converter body corresponds to, also be conducting and the off-state that corresponds to Metal Contact sheet, projection and housing both sides inwall have formed buckling groove so, buckling groove make salient angle clamping and hold mode constant, the elastic potential of elastic component storage is connected in salient angle in buckling groove all the time, and under the unexpected condition such as non-artificial operation, state does not change.
The present invention is further set to: described pushing block is provided with the holddown groove for elastic component plug-in mounting.
Pass through technique scheme, conflict and be arranged on the other end and converter body inwall conflict or fixing in holddown groove in elastic component one end, holddown groove has avoided elastic component position to be offset, and small side-play amount accumulation may cause elastic component to eject converter body after long-time use, make overall structure unstable, therefore holddown groove has been realized the stable of elastic component installation site.
The present invention is further set to: described change-over switch is provided with the operating groove for driving its rotation.
By technique scheme, when use, can facilitate rotation by straight screwdriver, the active force while having saved operation uses external tool simultaneously, has avoided direct contact converter body, uses safer.
The present invention is further set to: described Metal Contact sheet end is provided with the flange for contacting pluggable terminals.
Pass through technique scheme, the sidewall of flange and pluggable terminals have larger contact area, therefore current-carrying area is large when current lead-through, conducting effect is better, and the power supply of realization is more stable, on the other hand, because the contact-making surface of flange is longer, while rotating Metal Contact sheet, the contact-making surface of flange and pluggable terminals progressively dwindles, and it is less that the electric arc producing in open procedure is resolved in further namely realization, and the damage causing for limit base internal structure is less.
The present invention is further set to: described converter body is provided with for the hinged hinged groove of change-over switch, and the corresponding hinged groove of described Metal Contact sheet place is provided with hinged projection.
Pass through technique scheme, when operation change-over switch rotates, change-over switch drives Metal Contact sheet to rotate, while rotation for further guarantee, structure is stable, be provided with hinged projection and hinged groove, by both cooperations, in the time that change-over switch rotates, hinged groove prevents that Metal Contact sheet is outwards offset, and Metal Contact sheet is to be inserted on change-over switch, the position of change-over switch is limited simultaneously so, therefore after repeatedly rotating change-over switch, still ensures invariant position, has realized good structural stability.
The present invention is further set to: in described converter body, be provided with for the spacing snap ring of change-over switch.
By technique scheme, snap ring wraps up change-over switch, and the swing of change-over switch is restricted so, has dwindled the scope of activities of change-over switch, has improved its shock resistance, has higher structural stability.
With a table holder for the arbitrary described converter of claim 1-9, comprise limit base, with hinged the renovating of limit base, described housing outer wall is provided with fixture block, described limit base is provided with the draw-in groove fastening for fixture block.
By technique scheme, move and renovate the covering that realizes limit base, there is the effect of dustproof and waterproof, avoid internal circuit short circuit to burn, safer on the other hand, avoid layman's maloperation directly to touch pluggable terminals; By fixture block and draw-in groove, facilitate the installation of converter body in limit base, without extra parts, directly calibrating position inserts converter body, has saved built-up time, has realized higher operating efficiency.
Brief description of the drawings
Fig. 1 is the integral vertical stereogram of the embodiment of the present invention;
Fig. 2 is limit base and the converter body three-dimensional view of the embodiment of the present invention;
Fig. 3 is the converter body three-dimensional view of the embodiment of the present invention;
Fig. 4 is the converter body explosive view of the embodiment of the present invention;
Fig. 5 is the converter body explosive view of the embodiment of the present invention.
Reference numeral: 1, pluggable terminals; 2, limit base; 3, converter body; 31, Metal Contact sheet; 311, flange; 312, hinged projection; 32, change-over switch; 321, salient angle; 322, operating groove; 33, position-limit mechanism; 331, pushing block; 3311, holddown groove; 3312, projection; 332, elastic component; 34, fixture block; 35, hinged groove; 36, snap ring; 37, housing; 371, buckling groove; 372, accommodating groove; 4, renovate.
Detailed description of the invention
Referring to figs. 1 through Fig. 5, the embodiment of the present invention is described further.
A kind ofly plug the converter of not power-off of electric energy meter and the table holder with this converter, comprise converter body 3, the change-over switch 32 that converter body 3 comprises housing 37 and is rotationally connected with it, change-over switch 32 is provided with the Metal Contact sheet 31 for conducting pluggable terminals 1, and change-over switch 32 rotates interlock Metal Contact sheet 31 and pluggable terminals 1 clutch; In the time of plug electric energy meter, can hold in the palm not power-off by realization table, it realizes the constantly principle of electricity is that converter body 3 has two state conversion regimes, when resident's normal power supply electric energy meter installs in the ordinary course of things, electric energy meter need to be connected the effect that realizes metering electric energy, now converter body 3 is adjusted to off-state, namely Metal Contact sheet 31 is separated with pluggable terminals 1, circuit disconnects, and realizes electric current and flows through from electric energy meter; In another situation, electric energy meter need to be changed or keep in repair, now inevitably need to take off electric energy meter, but taking off before electric energy meter first by change-over switch 32 Metal Contact sheet 31 and pluggable terminals 1 conducting, now be equivalent to electric energy meter by short circuit, whether electric energy meter takes off does not affect normal power supply, when having avoided staff to change or having keeped in repair electric energy meter, cause power supply to stop, ensure resident living continued power, install after electric energy meter in next time, change-over switch 32 is adjusted to open position, realize the metering of electric energy meter, it is extremely convenient to operate.
Metal Contact sheet 31 is plugged on change-over switch 32, and described housing 37 is provided with the accommodating groove 372 for holding Metal Contact sheet 31, rotates the change-over switch 32 Metal Contact sheet 31 that links and rotates and regain in housing 37; Operation change-over switch 32 has been realized the rotation of Metal Contact sheet 31, namely realize the clutch of Metal Contact sheet 31 with pluggable terminals 1, and Metal Contact sheet 31 can also be regained in the accommodating groove 372 of housing 37 by rotating, reach the effect of connecting and disconnecting of the circuit, after regaining, be convenient to take out converter body 3 simultaneously and realize installation replacing.
Preferably, converter body 3 also comprises the position-limit mechanism 33 of restriction change-over switch 32 activities; Realized the maintenance of converter body 3 states by position-limit mechanism 33, namely in the time of Metal Contact sheet 31 and pluggable terminals 1 conducting, position-limit mechanism 33 can be kept conducting, when operation change-over switch 32 arrives the state of another converter body 3, Metal Contact sheet 31 disconnects with pluggable terminals 1, position-limit mechanism 33 keeps its disconnection, therefore realized the stability of its structure, avoid pluggable terminals 1 under non-artificial condition, to pass through the unexpected conducting of converter body 3 or disconnection, ensured that electric energy meter variable is accurate.
As shown in Figure 3, change-over switch 32 comprises salient angle 321, change-over switch 32 drives salient angle 321 to rotate, described position-limit mechanism 33 comprises pushing block 331, pushing block 331 is provided with projection 3312, projection 3312 forms respectively buckling groove 371 with housing 37 both sides inwalls, and salient angle 321 is connected in buckling groove 371, and position-limit mechanism 33 also comprises that promoting pushing block 331 makes salient angle 321 be connected in the elastic component 332 in buckling groove 371; Can be understood as the locus conversion of the salient angle 321 that the state conversion of converter body 3 corresponds to, also be conducting and the off-state that corresponds to Metal Contact sheet 31 and pluggable terminals 1, projection 3312 has formed buckling groove 371 with housing 37 both sides inwalls so, buckling groove 371 make salient angle 321 clampings and hold mode constant, the elastic potential that elastic component 332 is stored is connected in salient angle 321 in buckling groove 371 all the time, under the unexpected condition such as non-artificial operation, state does not change, and has therefore realized the stability of total.
As shown in Figure 4, pushing block 331 is provided with the holddown groove 3311 for elastic component 332 plug-in mountings, and elastic component 332 is preferably simple and practical spring; By such setting, conflict and be arranged on the interior other end of holddown groove 3311 and converter body 3 inwalls conflicts or fixing in spring one end, holddown groove 3311 has avoided the position of spring to be offset, and small side-play amount accumulation may cause spring to eject converter body 3 after long-time use, make overall structure unstable, therefore holddown groove 3311 has been realized the stable of elastic component 332 installation sites.
Preferably, change-over switch 32 is provided with the operating groove 322 for driving its rotation; By such setting, when use, can facilitate rotation by straight screwdriver, straight screwdriver update groove 322 is driven and is rotated, or also use other board update grooves 322 to realize to rotate can, the active force while having saved operation; Use external tool simultaneously, avoided direct contact converter body 3, use safer.
Preferably, Metal Contact sheet 31 ends are provided with the flange 311 for contacting pluggable terminals 1; By such setting, the sidewall of flange 311 and pluggable terminals 1 have larger contact area, therefore current-carrying area is large when current lead-through, conducting effect is better, and the power supply of realization is more stable, on the other hand, because the contact-making surface of flange 311 is longer, while rotating Metal Contact sheet 31, flange 311 progressively dwindles with the contact-making surface of pluggable terminals 1, and it is less that the electric arc producing in open procedure is resolved in further namely realization, and the damage causing for limit base 2 internal structures is less; As shown in Figure 4, flange 311 contrary towards arranging, namely in the time rotating, two side flangings 311 can be regained in converter body 3 simultaneously.
As shown in Figure 5, converter body 3 is provided with for the hinged hinged groove 35 of change-over switch 32, and the corresponding hinged groove of Metal Contact sheet 31 35 places are provided with hinged projection 312; By such setting, when operation change-over switch 32 rotates, change-over switch 32 drives Metal Contact sheet 31 to rotate, while rotation for further guarantee, structure is stable, be provided with hinged projection 312 and hinged groove 35, by both cooperations, in the time that change-over switch 32 rotates, hinged groove 35 prevents that Metal Contact sheet 31 is outwards offset, and Metal Contact sheet 31 is to be inserted on change-over switch 32, the position of change-over switch 32 is limited simultaneously so, therefore still ensures invariant position repeatedly rotating after change-over switch 32, has realized good structural stability.
As shown in Figure 4, in converter body 3, be provided with for the spacing snap ring 36 of change-over switch 32; By such setting, snap ring 36 wraps up change-over switch 32, and the swing of change-over switch 32 is restricted so, has dwindled the scope of activities of change-over switch 32, has improved its shock resistance, has higher structural stability.
With a table holder of this converter body 1 embodiment, comprise limit base 2, limit base 2 is provided with hinged with it renovates 4; By such setting, move and renovate 4 coverings that realize limit base 2, there is the effect of dustproof and waterproof, avoid internal circuit short circuit to burn, safer on the other hand, avoid layman's maloperation directly to touch pluggable terminals 1. As shown in Fig. 4 to 5, converter body 3 is provided with fixture block 34, and limit base 2 is provided with the draw-in groove fastening for fixture block 34; By such setting, by fixture block 34 and draw-in groove, facilitate the installation of converter body 3 in limit base 2, without extra parts, directly calibrating position inserts converter body 3, has saved built-up time, has realized higher operating efficiency.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is also not only confined to above-described embodiment, and all technical schemes belonging under thinking of the present invention all belong to protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. one kind plugs the converter of not power-off of electric energy meter, it is characterized in that: comprise converter body, the change-over switch that described converter body comprises housing and is rotationally connected with it, described change-over switch is provided with the Metal Contact sheet for conducting pluggable terminals, and change-over switch rotates interlock Metal Contact sheet and pluggable terminals clutch.
2. a kind of converter that plugs not power-off of electric energy meter according to claim 1, it is characterized in that: described Metal Contact sheet is plugged on change-over switch, described housing is provided with the accommodating groove for holding Metal Contact sheet, rotates change-over switch and drives Metal Contact sheet to rotate and regain in housing.
3. a kind of converter that plugs not power-off of electric energy meter according to claim 1, is characterized in that: described converter body also comprises the position-limit mechanism of restriction change-over switch activity.
4. a kind of converter that plugs not power-off of electric energy meter according to claim 3, it is characterized in that: described change-over switch comprises salient angle, change-over switch drives salient angle to rotate, described position-limit mechanism comprises pushing block, pushing block is provided with projection, described projection and housing both sides inwall form respectively buckling groove, and described salient angle is connected in buckling groove, and described position-limit mechanism also comprises that promoting pushing block makes salient angle be connected in the elastic component in buckling groove.
5. a kind of converter that plugs not power-off of electric energy meter according to claim 4, is characterized in that: described pushing block is provided with the holddown groove for elastic component plug-in mounting.
6. a kind of converter that plugs not power-off of electric energy meter according to claim 1, is characterized in that: described change-over switch is provided with the operating groove for driving its rotation.
7. a kind of converter that plugs not power-off of electric energy meter according to claim 1, is characterized in that: described Metal Contact sheet end is provided with the flange for contacting pluggable terminals.
8. a kind of converter that plugs not power-off of electric energy meter according to claim 1, is characterized in that: described converter body is provided with for the hinged hinged groove of change-over switch, and the corresponding hinged groove of described Metal Contact sheet place is provided with hinged projection.
9. a kind of converter that plugs not power-off of electric energy meter according to claim 1, is characterized in that: in described converter body, be provided with for the spacing snap ring of change-over switch.
10. with a table holder for the arbitrary described converter of claim 1-9, it is characterized in that: comprise limit base, with hinged the renovating of limit base, described housing outer wall is provided with fixture block, described limit base is provided with the draw-in groove fastening for fixture block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510780445.0A CN105606860B (en) | 2015-11-13 | 2015-11-13 | A kind of converter that plug electric energy meter does not power off and the table support with the converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510780445.0A CN105606860B (en) | 2015-11-13 | 2015-11-13 | A kind of converter that plug electric energy meter does not power off and the table support with the converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105606860A true CN105606860A (en) | 2016-05-25 |
| CN105606860B CN105606860B (en) | 2018-08-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510780445.0A Expired - Fee Related CN105606860B (en) | 2015-11-13 | 2015-11-13 | A kind of converter that plug electric energy meter does not power off and the table support with the converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105606860B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445268A (en) * | 2018-05-18 | 2018-08-24 | 上海振浩电子科技有限公司 | A kind of three-phase electric energy meter does not have a power failure more changing device |
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| JP3043753B1 (en) * | 1999-04-28 | 2000-05-22 | 株式会社きんでん | Work cover device for watt hour meter |
| CN202119897U (en) * | 2011-06-17 | 2012-01-18 | 杭州炬华科技股份有限公司 | Multistation parallel testboard used for electric energy meter |
| CN103226159A (en) * | 2013-04-01 | 2013-07-31 | 杭州驰骋凯晟科技有限公司 | Box site automatic junction device and compression joint method for single phase watt hour meter |
| CN103424588A (en) * | 2013-08-21 | 2013-12-04 | 杭州海兴电力科技股份有限公司 | Electric energy meter connection terminal kit |
| CN203707525U (en) * | 2014-03-10 | 2014-07-09 | 国家电网公司 | Short circuit apparatus for replacement of electric energy meter without power failure |
| CN104090138A (en) * | 2014-07-16 | 2014-10-08 | 国家电网公司 | Binding post enabling single-phase watt-hour meter to be replaced without power cut |
| CN203981729U (en) * | 2014-08-11 | 2014-12-03 | 温州悦动智能电器有限公司 | A kind of device of realizing the not power-off of plug electric energy meter |
| CN204666689U (en) * | 2015-06-11 | 2015-09-23 | 乐清市兆鑫电气公司 | The table holder plugging electric energy meter not power-off can be realized |
| CN205139198U (en) * | 2015-11-13 | 2016-04-06 | 乐清道和电气有限公司 | Converter that plug electric energy meter does not cut off power supply and table that has this converter hold in palm |
-
2015
- 2015-11-13 CN CN201510780445.0A patent/CN105606860B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3043753B1 (en) * | 1999-04-28 | 2000-05-22 | 株式会社きんでん | Work cover device for watt hour meter |
| CN202119897U (en) * | 2011-06-17 | 2012-01-18 | 杭州炬华科技股份有限公司 | Multistation parallel testboard used for electric energy meter |
| CN103226159A (en) * | 2013-04-01 | 2013-07-31 | 杭州驰骋凯晟科技有限公司 | Box site automatic junction device and compression joint method for single phase watt hour meter |
| CN103424588A (en) * | 2013-08-21 | 2013-12-04 | 杭州海兴电力科技股份有限公司 | Electric energy meter connection terminal kit |
| CN203707525U (en) * | 2014-03-10 | 2014-07-09 | 国家电网公司 | Short circuit apparatus for replacement of electric energy meter without power failure |
| CN104090138A (en) * | 2014-07-16 | 2014-10-08 | 国家电网公司 | Binding post enabling single-phase watt-hour meter to be replaced without power cut |
| CN203981729U (en) * | 2014-08-11 | 2014-12-03 | 温州悦动智能电器有限公司 | A kind of device of realizing the not power-off of plug electric energy meter |
| CN204666689U (en) * | 2015-06-11 | 2015-09-23 | 乐清市兆鑫电气公司 | The table holder plugging electric energy meter not power-off can be realized |
| CN205139198U (en) * | 2015-11-13 | 2016-04-06 | 乐清道和电气有限公司 | Converter that plug electric energy meter does not cut off power supply and table that has this converter hold in palm |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445268A (en) * | 2018-05-18 | 2018-08-24 | 上海振浩电子科技有限公司 | A kind of three-phase electric energy meter does not have a power failure more changing device |
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| Publication number | Publication date |
|---|---|
| CN105606860B (en) | 2018-08-14 |
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