CN203800383U - Line measurement and control device for low voltage power distribution cabinet - Google Patents
Line measurement and control device for low voltage power distribution cabinet Download PDFInfo
- Publication number
- CN203800383U CN203800383U CN201420245545.4U CN201420245545U CN203800383U CN 203800383 U CN203800383 U CN 203800383U CN 201420245545 U CN201420245545 U CN 201420245545U CN 203800383 U CN203800383 U CN 203800383U
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- projection
- guide rail
- distribution cabinet
- control device
- rail holder
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Abstract
The utility model discloses a line measurement and control device for a low voltage power distribution cabinet. The line measurement and control device comprises a device body and a three-phase current transformer, wherein a back end of the device body is fixedly provided with a wiring terminal bar, output wire end of the three-phase current transformer are in signal connection with corresponding current input ends on the wiring terminal bar. The line measurement and control device is characterized by further comprising a wiring terminal bar fixing member which is in the arched structure integrally, two ends of the wiring terminal bar fixing member are connection portions, the connection portions are fixedly connected with the device body through bolts, a central portion of the wiring terminal bar fixing member is fixedly provided with bosses extending along a direction of each wiring terminal, top portions of the bosses are provided with C-shaped holding members which have elastic performance and are conductive, the C-shaped holding members are used for holding and fixing the corresponding output wire ends, and opening ends of the C-shaped holding members press against conductive sheets of the wiring terminals. The line measurement and control device makes connection of the output wire ends of the transformer be more convenient, and thereby mounting efficiency of the low voltage power distribution cabinet is improved.
Description
Technical field
The utility model belongs to electric equipment field, is specifically related to a kind of circuit measure and control device of low-voltage distribution cabinet.
Background technology
The Main Function of switch cubicle (switchgear) is in the process of the generating of electric power system, transmission of electricity, distribution and electric energy conversion; carry out folding, control and protection power consumption equipment, it is applicable to the various different occasions such as power plant, transformer station, industrial enterprise and residential quarters.In switch cubicle, be typically provided with circuit breaker (or isolating switch or on-load switch), operating mechanism, instrument transformer and various protective devices etc.At present, have for the sorting technique of switch cubicle a variety of, as being divided into withdraw-type switch cabinet and fixed switching cabinet by circuit breaker mounting means; According to the difference of cabinet body structure, can be divided into metal closed switch cabinet and metal enclosed armoured switch cabinet; Can be divided into again high-tension switch cabinet, Medium Voltage Switchgear and low-voltage distribution cabinet etc. according to electric pressure difference.
Wherein, low-voltage distribution cabinet is used for exchanging 50Hz, the distribution system of rated voltage 380v as power, the electric energy conversion of illumination and distribution and the use of control.Meanwhile, also because of low-voltage distribution cabinet, to have breaking capacity strong, and dynamic thermal stability is good, and electric scheme is flexible, and the advantage of combined and instant, therefore be widely adopted in various power supply occasions.Low-voltage distribution cashier's office in a shop can wiring measure and control device on secondary chamber's door-plate, and measure and control device of the prior art, based on microprocessor technology, adopts Modular electrical line structure; Wherein, carried out the Monitoring and Controlling function of circuit by microprocessor, and coordinate with contactor, soft starter, breaker of plastic casing and provide control, protection, monitoring and bus communication for low-voltage circuit loop.Meanwhile, low-voltage distribution cashier's office in a shop adopts after circuit measure and control device, can simplify the difficulty of primary system wiring, also can avoid the faults such as three characteristics of the middle term current imbalance, overvoltage/undervoltage or electric leakage and the production accident that causes.
At present, in prior art, notification number is CN 203326716 U(day for announcing 2013.12.4) disclose a kind of this device of low-voltage distribution measuring and controlling protective device and comprised measure and control device, described measure and control device is provided with one group of voltage input end, one group of current input terminal, two groups of control output ends, the voltage of described voltage input end input is between 100V～380V, described every group of control output end is provided with two groups of apolegamy outlets, and described measure and control device is provided with RS485 communication port; Described RS485 communication port adopts MODBUS-RTU agreement, and this communication port can all can transmit for various data messages on communication line; On described measure and control device, be also provided with remote control output port, described remote control output port by distant close outlet and distant point of outlet form.Above-mentioned low-voltage distribution monitoring and protection dress can be realized measurement, supervision, protection and the function of communicating by letter.
Separately exist, notification number is CN 202737576 U(day for announcing 2013.2.13) a kind of intelligent measuring and control device for low-voltage network disclosed, described intelligent measuring and control device comprises power supply unit, signal gathering unit, remote measurement and control unit, data analysis processing unit, man-machine interaction unit and communication management unit, wherein, data analysis processing unit is connected with signal gathering unit, remote measurement and control unit, man-machine interaction unit and communication management unit respectively.Described device detects the parameter of low-voltage network, carries out Treatment Analysis by data analysis processing unit, understands the real-time running state of distribution and result is uploaded to host computer, realizes the intellectuality control of low-voltage network.The intelligent measuring and control device of above-mentioned low-voltage network can be raised labour efficiency, and has reduced the maintenance cost of Distribution Network Equipment, has realized and modernization automatic distribution network network compatibility, has improved power supply quality and the stability of low-voltage network.
Though above-mentioned prior art has disclosed main composition and the circuit structure unit thereof of the circuit measure and control device of existing low-voltage distribution cabinet, and the useful technique effect obtaining.But applicant has found that by long-term use the circuit measure and control device of existing low-voltage distribution cabinet has following weak point: in the process of low-voltage distribution cabinet wiring measure and control device, (as shown in Figure 3) on the measure and control device of prior art center line road and the binding post of the connecting terminal block that is connected of instrument transformer (voltage transformer is or/and current transformer) (thering is the insulating spacer 11 of prevention short circuit between binding post) need each phase output line terminal 5 of instrument transformer three-phase be pressed solidly on the conducting strip 12 of binding post by turning the compressing tablet 7 being socketed on bolt 6 and bolt, this operation is very loaded down with trivial details, especially in the time that low-voltage distribution cabinet is the multiaspect being set up in parallel, further affect the lifting of installation effectiveness.
To sum up, coupling together of the circuit measure and control device of the low-voltage distribution cabinet of prior art and each phase output terminal of instrument transformer is comparatively loaded down with trivial details, has limited the lifting of low-voltage distribution cabinet installation effectiveness.
Utility model content
For above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is: how to provide a kind of can making to couple together the circuit measure and control device of low-voltage distribution cabinet more easily with instrument transformer output line terminal.Thereby improve low-voltage distribution cabinet installation effectiveness.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme:
A circuit measure and control device for low-voltage distribution cabinet, comprises device body and a threephase current transformer of overall rectangular body structure; Described device body entirety is embedded on secondary chamber's door-plate of low-voltage distribution cabinet; Described threephase current transformer is fixedly installed on the chamber, primary circuit of low-voltage distribution cabinet; Described device body front end is provided with display floater and action button, and the rear end of described device body is fixedly installed connecting terminal block; Described threephase current transformer output line terminal connects with current input terminal signal corresponding on described connecting terminal block; It is characterized in that: also comprise that entirety is arc connecting terminal block fixture, the two ends of described connecting terminal block fixture are connecting portion, and described connecting portion is fixedly connected with described device body by bolt; On the middle part of described connecting terminal block fixture, be fixedly installed the boss extending toward each binding post direction, the top of described boss is also provided with the C clamp gripping member that has elasticity and can conduct electricity, this C clamp gripping member for clamping live corresponding output line terminal, and the openend of this C clamp gripping member is connected on the conducting strip of binding post.
The circuit measure and control device of low-voltage distribution cabinet of the present utility model, when use, runs through respectively through hole corresponding on threephase current transformer by each phase circuit of primary circuit, thereby can record the current value of the each phase in primary circuit; And each voltage input end on connecting terminal block is respectively connected accordingly with primary circuit respectively, thereby records each phase voltage value of primary circuit; The output line terminal of above-mentioned threephase current transformer, and the line end that each voltage input end on the each and connecting terminal block of primary circuit is connected is referred to as output line terminal.In the time that output line terminal is connected with binding post correspondingly on device body, first can be fast by the C clamp gripping member on connecting terminal block fixture clamping live corresponding output line terminal, subsequently connecting terminal block fixture is fixed on device body, now the openend of this C clamp gripping member is connected on the conducting strip of binding post, because C clamp gripping member can be conducted electricity, historical facts or anecdotes has showed output line terminal can record parameters of electric power with being electrically connected also of conducting strip of binding post.Visible, when the circuit measure and control device of low-voltage distribution cabinet of the present utility model is connected with output line terminal, the not only convenient and swift reliability that also has concurrently, can help to improve the installation effectiveness of low-voltage distribution cabinet.
As improvement, on a side of described threephase current transformer, there is the clamping mechanism for being detachably fixedly connected with guide rail; Described clamping mechanism is included in the first guide rail holder and the second guide rail holder that on this side, length direction is oppositely arranged, wherein, on described the first guide rail holder, there is the first projection toward the second guide rail holder direction horizontal expansion with the upper end of closing on side of described the second guide rail holder, between described the first projection and this side, form the first jaws; Described the second guide rail holder comprises a slotting firmware that can be parallel to this side and slidably reciprocate with respect to described the first guide rail holder and the chute for described slotting firmware is slidably reciprocated; Described slotting firmware has the hollow bulb of cuboid structure, in described hollow bulb, has been provided with a pair of splay bar shaped elastic arm that is along this side length direction, on the adjacent medial surface of a pair of bar shaped elastic arm, has leg-of-mutton recess; Also be included in the projection being fixed on this side and between a pair of bar shaped elastic arm, the both sides of closing on a pair of bar shaped elastic arm in described projection have the triangle tip corresponding with described recess; The end face upper end of closing on described the first guide rail holder on described slotting firmware has the second projection toward the first guide rail holder direction horizontal expansion; Promote described slotting firmware toward described the first guide rail holder direction, can make the triangle tip of a pair of bar shaped elastic arm recess and described projection carry out being concavo-convexly connected and carrying out spacing to inserting firmware under the effect of a pair of bar shaped elastic arm elastic force, now, the second projection on described slotting firmware stretch out described chute outer and and this side between form the second jaws; Between described the first jaws and the second jaws, state guide rail for clamping residence.
After enforcement such scheme, can take the installation exercise of pipeline system, first arrange a staff guide rail to be constantly fixed on to the chamber, primary circuit of each low-voltage distribution cabinet, simultaneously, arrange another one staff to connect instrument transformer output line segment to connecting terminal block, can make clamping residence between the first jaws and the second jaws state guide rail by promoting to insert firmware subsequently, can greatly improve low-voltage distribution cabinet installation effectiveness.Simultaneously, in the time that needs are changed or are overhauled this threephase current transformer, only need oppositely pull slotting firmware to make most advanced and sophisticated disengaging of triangle of a pair of bar shaped elastic arm recess and projection, and second projection of inserting firmware is fallen between chute, this threephase current transformer can be taken off from guide rail, thereby can carry out quick-replaceable or maintenance to it.
As improvement, on described slotting firmware, also there is away from one end of described the second projection the limiting section that past chute direction is extended, on described chute, also there is the corresponding breach of described limiting section; Promote described slotting firmware toward described the first guide rail holder direction, and while making the triangle tip of a pair of bar shaped elastic arm breach and described projection carry out concavo-convex being connected, described limiting section falls into spacing to described slotting firmware of described breach realization.
Implement after such scheme, can avoid promoting to insert firmware to the first guide rail holder direction time, make the triangle tip of a pair of bar shaped elastic arm recess and projection fail to form concavo-convex being connected, the fixed effect of appearance is owed firmly, even because of the excessive situation that firmware damages that causes inserting of exerting oneself.Therefore can help instruction to promote whether to put in place, and play a protective role to inserting firmware.
As improvement, described hollow bulb closes on and on the inwall of described the second projection, has the projection just described projection direction being extended, in described projection just to thering is the recessed groove of suitable projection length direction on the side of described projection; Described in when pulling described slotting firmware away from described the first guide rail holder direction and make the second projection on described slotting firmware fall between chute, projection falls into and in described groove, realizes spacing to described slotting firmware away from one end of described the second projection.
Implement after such scheme, can avoid because exerting oneself when excessive toward pulling away from described the first guide rail holder direction, cause inserting the situation of firmware and guide rail disengaging, and then be to have influence on follow-up installment work again.Therefore be provided with above-mentioned projection on hollow bulb, and be provided with in projection after the groove corresponding with projection, can realize toward pulling away from described the first guide rail holder direction and insert the spacing of firmware, ensure carrying out smoothly of subsequent installation work.
The circuit measure and control device of low-voltage distribution cabinet of the present utility model can make with instrument transformer output line terminal couple together more convenient, thereby improve low-voltage distribution cabinet installation effectiveness.
Brief description of the drawings
Fig. 1 is the perspective view of the circuit measure and control device of low-voltage distribution cabinet of the present utility model.
Fig. 2 is that the circuit measure and control device of low-voltage distribution cabinet of the present utility model is overlooked the structural representation of direction.
Fig. 3 is that the circuit measure and control device upper connecting terminal of prior art mesolow power distribution cabinet is arranged the structural representation being connected with output line terminal.
Fig. 4 is that the circuit measure and control device upper connecting terminal of low-voltage distribution cabinet of the present utility model is arranged the structural representation being connected with output line terminal.
Fig. 5 be in Fig. 2 threephase current transformer A to view.
Fig. 6 is the end view of inserting firmware in Fig. 5.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
When concrete enforcement: as shown in Figures 1 to 6, a kind of circuit measure and control device of low-voltage distribution cabinet, comprises device body 1 and a threephase current transformer 2 of overall rectangular body structure; Described device body 1 entirety is embedded in secondary chamber's door-plate (not shown) of low-voltage distribution cabinet; Described threephase current transformer 2 is fixedly installed on the chamber, primary circuit of low-voltage distribution cabinet; Described device body 1 front end is provided with display floater and action button, and the rear end of described device body 1 is fixedly installed connecting terminal block; Described threephase current transformer 2 output line terminal connect with current input terminal signal corresponding on described connecting terminal block; Also comprise that entirety is arc connecting terminal block fixture 4, the two ends of described connecting terminal block fixture 4 are connecting portion, and described connecting portion is fixedly connected with described device body 1 by bolt; On the middle part of described connecting terminal block fixture 4, be fixedly installed the boss 41 extending toward each binding post direction, the top of described boss 41 is also provided with the C clamp gripping member 43 that has elasticity and can conduct electricity, this C clamp gripping member 43 for clamping live corresponding output line terminal, and the openend of this C clamp gripping member 43 is connected on the conducting strip 12 of binding post.
When concrete enforcement, described boss 41 can, by for elastic caoutchouc makes, like this, when can playing insulating effect, provide the openend of elastic force to C clamp gripping member 43, thereby makes the more reliable butt power transmission of conducting strip 12 of itself and binding post.Described threephase current transformer 2 can adopt three single-phase current transformers, or adopts a Combined three phase current transformer 2.
When concrete enforcement, described threephase current transformer 2 can be the Combined three phase current transformer 2 of cuboid structure, and on Combined three phase current transformer 2, has the through hole that runs through respectively and can record this phase current values for the each phase circuit 3 in primary circuit.Adopt after Combined three phase current transformer 2, can reduce the installation workload of current transformer, improve installation effectiveness.Meanwhile, between described Combined three phase current transformer 2 and device body 1, carry out signal connection by twisted-pair feeder 8, the two ends of twisted-pair feeder 8 add joint, and on Combined three phase current transformer 2, be arranged at the corresponding accessory power outlet of this joint, on device body 1, arrange and the corresponding input socket of this joint, thereby can more rapidly threephase current transformer 2 be connected with device body 1 signal.
On a side of described threephase current transformer 2, there is the clamping mechanism for being detachably fixedly connected with guide rail; Described clamping mechanism is included in the first guide rail holder 21 and the second guide rail holder that on this side, length direction is oppositely arranged, wherein, on described the first guide rail holder 21, there is the first projection 211 toward the second guide rail holder direction horizontal expansion with the upper end of closing on side of described the second guide rail holder, between described the first projection 211 and this side, form the first jaws; Described the second guide rail holder comprises a slotting firmware 23 that can be parallel to this side and slidably reciprocate with respect to described the first guide rail holder 21 and the chute 22 for described slotting firmware 23 is slidably reciprocated; Described slotting firmware 23 has the hollow bulb of cuboid structure, in described hollow bulb, has been provided with a pair of splay bar shaped elastic arm 232 that is along this side length direction, on the adjacent medial surface of a pair of bar shaped elastic arm 232, has leg-of-mutton recess; Also be included in the projection 24 being fixed on this side and between a pair of bar shaped elastic arm 232, the both sides of closing on a pair of bar shaped elastic arm 232 in described projection 24 have the triangle tip corresponding with described recess; The end face upper end of closing on described the first guide rail holder 21 on described slotting firmware 23 has the second projection 233 toward the first guide rail holder 21 direction horizontal expansions; Promote described slotting firmware 23 toward described the first guide rail holder 21 directions, can make the triangle tip of a pair of bar shaped elastic arm 232 recesses and described projection 24 carry out being concavo-convexly connected and carrying out spacing to inserting firmware 23 under the effect of a pair of bar shaped elastic arm 232 elastic force, now, the second projection 233 on described slotting firmware 23 stretch out described chute 22 outer and and this side between form the second jaws; Between described the first jaws and the second jaws, state guide rail 9 for clamping residence.
On described slotting firmware 23, also there is away from one end of described the second projection 233 limiting section 231 that past chute 22 directions are extended, on described chute 22, also there is the corresponding breach of described limiting section 231; Promote described slotting firmware 23 toward described the first guide rail holder 21 directions, and the triangle tip that makes a pair of bar shaped elastic arm 232 breach and described projection 24 is while carrying out concavo-convex being connected, described limiting section 231 falls into described breach and realizes spacing to described slotting firmware 23.Like this, just can help instruction to promote whether to put in place, and play a protective role to inserting firmware 23.
Described hollow bulb closes on and on the inwall of described the second projection 233, has the projection 234 just described projection 24 directions being extended, in described projection 24 just to thering is the recessed groove of suitable projection 234 length directions on the side of described projection 234; Described in when pulling described slotting firmware 23 away from described the first guide rail holder 21 directions and make the second projection 233 on described slotting firmware 23 fall between chute 22, projection 234 falls into and in described groove, realizes spacing to described slotting firmware 23 away from one end of described the second projection 233.Like this, just can avoid because of toward pulling and exert oneself when excessive away from described the first guide rail holder 21 directions, cause inserting the situation that firmware 23 and guide rail depart from, and then for having influence on follow-up installment work again.Therefore be provided with above-mentioned projection 234 on hollow bulb, and be provided with in projection 24 after the groove corresponding with projection 234, can realize toward pulling away from described the first guide rail holder 21 directions and insert the spacing of firmware 23, ensure carrying out smoothly of subsequent installation work.
The circuit measure and control device of the low-voltage distribution cabinet that above-mentioned embodiment relates to, when use, runs through respectively through hole corresponding on threephase current transformer 2 by each phase circuit of primary circuit, thereby can record the current value of the each phase in primary circuit; And each voltage input end on connecting terminal block is respectively connected accordingly with primary circuit respectively, thereby records each phase voltage value of primary circuit; The output line terminal of above-mentioned threephase current transformer 2, and the line end that each voltage input end on the each and connecting terminal block of primary circuit is connected is referred to as output line terminal.In the time that output line terminal is connected with binding post correspondingly on device body 1, first can be fast by the C clamp gripping member 43 on connecting terminal block fixture 4 clamping live corresponding output line terminal, subsequently connecting terminal block fixture 4 is fixed on device body 1, now the openend of this C clamp gripping member 43 is connected on the conducting strip 12 of binding post, because C clamp gripping member 43 can be conducted electricity, historical facts or anecdotes has showed output line terminal can record parameters of electric power with being electrically connected also of conducting strip 12 of binding post.Visible, when the circuit measure and control device of low-voltage distribution cabinet of the present utility model is connected with output line terminal, the not only convenient and swift reliability that also has concurrently, can help to improve the installation effectiveness of low-voltage distribution cabinet.
Wherein, the current transformer of the circuit measure and control device of the low-voltage distribution cabinet that this embodiment relates to can be taked the installation exercise of pipeline system, first arrange a staff guide rail to be constantly fixed on to the chamber, primary circuit of each low-voltage distribution cabinet, simultaneously, arrange another one staff to connect instrument transformer output line segment to connecting terminal block, can make clamping residence between the first jaws and the second jaws state guide rail by promoting to insert firmware 23 subsequently, can greatly improve low-voltage distribution cabinet installation effectiveness.Simultaneously, in the time that needs are changed or are overhauled this threephase current transformer 2, only need oppositely pull slotting firmware 23 to make most advanced and sophisticated disengaging of triangle of a pair of bar shaped elastic arm 232 recesses and projection 24, and second projection 233 of inserting firmware 23 is fallen between chute 22, this threephase current transformer 2 can be taken off from guide rail, thereby can carry out quick-replaceable or maintenance to it.
By reference to the accompanying drawings execution mode of the present utility model is explained in detail above, above-mentioned execution mode is preferred forms of the present utility model, but the utility model is not limited to above-mentioned execution mode.In the ken that one skilled in the relevant art possesses, in all the utility model structures, be equal to replacement and all can be considered infringement of the present utility model.
Claims (4)
1. a circuit measure and control device for low-voltage distribution cabinet, comprises device body and a threephase current transformer of overall rectangular body structure; Described device body entirety is embedded on secondary chamber's door-plate of low-voltage distribution cabinet; Described threephase current transformer is fixedly installed on the chamber, primary circuit of low-voltage distribution cabinet; Described device body front end is provided with display floater and action button, and the rear end of described device body is fixedly installed connecting terminal block; Described threephase current transformer output line terminal connects with current input terminal signal corresponding on described connecting terminal block; It is characterized in that: also comprise that entirety is arc connecting terminal block fixture, the two ends of described connecting terminal block fixture are connecting portion, and described connecting portion is fixedly connected with described device body by bolt; On the middle part of described connecting terminal block fixture, be fixedly installed the boss extending toward each binding post direction, the top of described boss is also provided with the C clamp gripping member that has elasticity and can conduct electricity, this C clamp gripping member for clamping live corresponding output line terminal, and the openend of this C clamp gripping member is connected on the conducting strip of binding post.
2. the circuit measure and control device of low-voltage distribution cabinet according to claim 1, is characterized in that: on a side of described threephase current transformer, have the clamping mechanism for being detachably fixedly connected with guide rail; Described clamping mechanism is included in the first guide rail holder and the second guide rail holder that on this side, length direction is oppositely arranged, wherein, on described the first guide rail holder, there is the first projection toward the second guide rail holder direction horizontal expansion with the upper end of closing on side of described the second guide rail holder, between described the first projection and this side, form the first jaws; Described the second guide rail holder comprises a slotting firmware that can be parallel to this side and slidably reciprocate with respect to described the first guide rail holder and the chute for described slotting firmware is slidably reciprocated; Described slotting firmware has the hollow bulb of cuboid structure, in described hollow bulb, has been provided with a pair of splay bar shaped elastic arm that is along this side length direction, on the adjacent medial surface of a pair of bar shaped elastic arm, has leg-of-mutton recess; Also be included in the projection being fixed on this side and between a pair of bar shaped elastic arm, the both sides of closing on a pair of bar shaped elastic arm in described projection have the triangle tip corresponding with described recess; The end face upper end of closing on described the first guide rail holder on described slotting firmware has the second projection toward the first guide rail holder direction horizontal expansion; Promote described slotting firmware toward described the first guide rail holder direction, can make the triangle tip of a pair of bar shaped elastic arm recess and described projection carry out being concavo-convexly connected and carrying out spacing to inserting firmware under the effect of a pair of bar shaped elastic arm elastic force, now, the second projection on described slotting firmware stretch out described chute outer and and this side between form the second jaws; Between described the first jaws and the second jaws, state guide rail for clamping residence.
3. the circuit measure and control device of low-voltage distribution cabinet according to claim 2, is characterized in that: on described slotting firmware, also have away from one end of described the second projection the limiting section that past chute direction is extended, also have the corresponding breach of described limiting section on described chute; Promote described slotting firmware toward described the first guide rail holder direction, and while making the triangle tip of a pair of bar shaped elastic arm breach and described projection carry out concavo-convex being connected, described limiting section falls into spacing to described slotting firmware of described breach realization.
4. according to the circuit measure and control device of the low-voltage distribution cabinet described in claim 2 or 3, it is characterized in that: described hollow bulb closes on and on the inwall of described the second projection, has the projection just described projection direction being extended, in described projection just to thering is the recessed groove of suitable projection length direction on the side of described projection; Described in when pulling described slotting firmware away from described the first guide rail holder direction and make the second projection on described slotting firmware fall between chute, projection falls into and in described groove, realizes spacing to described slotting firmware away from one end of described the second projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420245545.4U CN203800383U (en) | 2014-05-14 | 2014-05-14 | Line measurement and control device for low voltage power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420245545.4U CN203800383U (en) | 2014-05-14 | 2014-05-14 | Line measurement and control device for low voltage power distribution cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN203800383U true CN203800383U (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420245545.4U Expired - Fee Related CN203800383U (en) | 2014-05-14 | 2014-05-14 | Line measurement and control device for low voltage power distribution cabinet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108010810A (en) * | 2017-12-28 | 2018-05-08 | 高锦 | A kind of miniature circuit breaker |
| CN108010809A (en) * | 2017-12-28 | 2018-05-08 | 高锦 | The plug-in type miniature circuit breaker of lifting switch module and base linking intensity |
-
2014
- 2014-05-14 CN CN201420245545.4U patent/CN203800383U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108010810A (en) * | 2017-12-28 | 2018-05-08 | 高锦 | A kind of miniature circuit breaker |
| CN108010809A (en) * | 2017-12-28 | 2018-05-08 | 高锦 | The plug-in type miniature circuit breaker of lifting switch module and base linking intensity |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20180514 |