CN203838225U - Current detection and communication apparatus for thermo-magnetic circuit breaker - Google Patents
Current detection and communication apparatus for thermo-magnetic circuit breaker Download PDFInfo
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- CN203838225U CN203838225U CN201420236550.9U CN201420236550U CN203838225U CN 203838225 U CN203838225 U CN 203838225U CN 201420236550 U CN201420236550 U CN 201420236550U CN 203838225 U CN203838225 U CN 203838225U
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- current
- isolating switch
- thermomagnetic type
- communication device
- circuit board
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Abstract
The utility model discloses a current detection and communication apparatus for a thermo-magnetic circuit breaker. The current detection and communication apparatus is composed of a pedestal, a cover, current transformers and a circuit board. The cover is mounted on the pedestal. Multiple current transformers corresponding to outlet terminals of the thermo-magnetic circuit breaker are installed in installation hole locations of the pedestal. A conductive plate is fixed to a magnetic ring center through hole of each current transformer. One end of each conductive plate is connected with one outlet terminal of the thermo-magnetic circuit breaker. An insulating layer for preventing the each conductive plate from a short circuit is disposed on a magnetic ring of each current transformer. A circuit board is further installed in the pedestal. The circuit board is connected with the multiple current transformers through wires. A communication interface through which connection with an external communication circuit can be realized is disposed on the circuit board. The current detection and communication apparatus for the thermo-magnetic circuit breaker has a simple structural layout and good reliability, can realize standardization, and meanwhile realizes live detection and communication functions with smaller size and reduced cost.
Description
Technical field
The utility model relates to the device on a kind of isolating switch, more particularly, relates to current detecting and communication device that a kind of Thermomagnetic type isolating switch is used.
Background technology
The intellectuality of isolating switch can communication be one of most important developing direction of current circuit breaker, the circuit breaker of electronic type carries out unified monitoring and management owing to can detecting the current value in loop and current value being sent to host computer from communication interface, significantly promoted the intelligent level of distribution system, greatly facilitated the power energy monitoring and controlling of each branch road of distribution and management, so be more and more subject to user's attention and like, but electronic type product is compared traditional Thermomagnetic type circuit breaker and is also existed some problems and hidden danger, current transformer on electronic breaker product and the built-in volume of circuit are all larger in the market, and structure, function is complicated, compare traditional Thermomagnetic type circuit breaker significantly cost and the volume of improving product, because current transformer needs the magnetic saturation intensity (BH curve does not distort) that circuit is carried out to spontaneous power supply and guarantee iron core simultaneously, realize quite difficulty of current transformer Miniaturization Design, the meeting of miniaturization simultaneously causes the remarkable lifting of Electric Circuit Electromagnetic Compatibility problem and insulation protection problem, product reliability significantly reduces.
Summary of the invention
The purpose of this utility model aims to provide current detecting and the communication device that a kind of Thermomagnetic type isolating switch is used, this Thermomagnetic type breaking current detection and communication device topology layout are simple, and good reliability, can realize standardization, realize the more belt current of small size simultaneously and detect and communication function, reduced cost.
For achieving the above object, current detecting and communication device that a kind of Thermomagnetic type isolating switch of the utility model is used, is characterized in that: described current detecting and communication device are comprised of housing, current transformer and circuit board; Housing is comprised of base and cover, internal linear display at housing is provided with a plurality of current transformers corresponding with the outlet terminal of Thermomagnetic type isolating switch, the magnet ring central through hole place of described current transformer is fixed with current-carrying plate, one end of current-carrying plate can connect with Thermomagnetic type circuit breaker outlet terminal, on the magnet ring of current transformer, be provided with the insulation course preventing with current-carrying plate short circuit, circuit board is also installed in housing, circuit board is connected with a plurality of current transformers respectively by wire, is provided with the communication interface that can connect with external communication circuit on circuit board; The outside dimension of described current transformer is 22-25mm, and rated operational current is 125A, and the 5-10 that maximum operating currenbt is rated operational current doubly.
Further, the end face being connected with Thermomagnetic type isolating switch on pedestal is interval with a plurality of convex tendon I corresponding with mounting groove Thermomagnetic type breaker outgoing line end phase partition.
Further, be interval with a plurality of convex tendon II corresponding with mounting groove Thermomagnetic type breaker outgoing line end phase partition covering the end face being connected with Thermomagnetic type isolating switch.
Further, the end face being connected with Thermomagnetic type isolating switch on base and cover is interval with respectively a plurality of convex tendon I and the convex tendon II corresponding with mounting groove Thermomagnetic type breaker outgoing line end phase partition, and on described pedestal, convex tendon I is corresponding with the position that covers convex tendon II.
Further, described circuit board is vertically placed in pedestal.
Further, the core material of described current transformer adopts ultracrystallite material or permalloy material.
In technique scheme, after traditional Thermomagnetic type isolating switch, be connected in series this current detecting and communication device, current transformer in this device will be powered to built-in circuit, and provide the current analog signal of major loop, after processing by circuit computing, can the current value of major loop be sent in outside data sink in real time by the communication interface on device, different with traditional electronic breaker is, the defencive function of circuit self is realized by Thermomagnetic type isolating switch, and current detecting and communication device are to realize accurate detection and the high power that low power number determines under current conditions to count the fuzzy detection under rated current, do not need to repeat to realize the defencive function of circuit, therefore in the delay protection maximal value 10In or 12In that require at power distribution circuit, do not need to consider the saturation problem of current transformer core, it is the distortion problem of magnetic induction density curve (BH curve), therefore current transformer need not too much consider that magnetic saturation problem limits the volume of iron core, by removing circuit, the output of magnetic flow convertor is required to (12V) simultaneously, can reduce in circuit power consumption at least 60% situation, can guarantee the normal power supply of current transformer to circuit board.The utlity model has following beneficial effect: the first,, can realize the normalizing operation of current detecting and communication device, realize the more belt current of small size simultaneously and detect and communication function; Second, by using the materials such as siliconized plate, ultracrystallite or permalloy of high permeability as the iron core of current transformer, can significantly reduce compared with electronic breaker the volume of current transformer, saved cost, good reliability, simultaneously can realize whole current detecting and communication device, and even with the significantly minimizing of the Thermomagnetic type isolating switch overall volume of this kind of communication device, integral installation size can be much smaller than existing electronic breaker product; The 3rd, circuit board is vertically placed in the pedestal of current detecting and communication device, significantly reduces isolating switch or communication device at the length dimension of line extreme direction, assembles simplyr, has reduced assembly space simultaneously.
Accompanying drawing explanation
The above and other feature of the present utility model, character and advantage are by by becoming more obvious below in conjunction with accompanying drawing to the description of embodiment, and in the accompanying drawings, identical Reference numeral represents identical feature all the time, wherein:
Fig. 1 shows current detecting that a kind of Thermomagnetic type isolating switch of the utility model uses and the perspective view of communication device;
Fig. 2 shows the back side perspective view of Fig. 1;
Fig. 3 shows current detecting that a kind of Thermomagnetic type isolating switch of the utility model uses and the vertical view of communication device;
Fig. 4 shows current detecting that a kind of Thermomagnetic type isolating switch of the utility model uses and the inner structure schematic diagram of communication device;
Fig. 5 shows the assembly structure schematic diagram of current transformer in current detecting that a kind of Thermomagnetic type isolating switch of the utility model uses and communication device;
Fig. 6 shows current detecting and the communication device that a kind of Thermomagnetic type isolating switch of the utility model uses and is arranged on the structural representation on traditional Thermomagnetic type isolating switch.
Embodiment
Current detecting and the communication device a kind of Thermomagnetic type isolating switch of the utility model used below in conjunction with accompanying drawing are further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.Current detecting of the present utility model and communication device can be built-in and external, and embodiment of the present utility model is external structure.
From Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, the current detecting that a kind of Thermomagnetic type isolating switch of the present embodiment is used and communication device are comprised of pedestal 1, lid 2, current transformer 3 and circuit board 4; Lid 2 is arranged on the top of pedestal 1, match with pedestal 1, in the present embodiment, at pedestal 1, be interval with respectively a plurality of convex tendon I 9 and convex tendon II 10 with the end face being connected with Thermomagnetic type isolating switch 11 on lid 2, pedestal 1 and lid 2 insert in the mounting groove of Thermomagnetic type breaker outgoing line end phase partition by convex tendon I 9 and convex tendon II 10 respectively, on pedestal 1, convex tendon I 9 is corresponding with the position of convex tendon II 10 on lid 2, convex tendon I 8 and the convex tendon II 9 of pedestal 1 and lid 2, provide phase partition on Thermomagnetic type isolating switch 1 to carry out the function of phase insulation.A plurality of current transformers 3 corresponding with the outlet terminal 6 of Thermomagnetic type isolating switch are installed in the mounting hole site of pedestal 1, the magnet ring central through hole place of described current transformer 3 is fixed with current-carrying plate 5, one end of current-carrying plate 5 can connect with the outlet terminal 6 of Thermomagnetic type isolating switch, the other end is contour in fixing rear maintenance and Thermomagnetic type isolating switch 11, does not change connected mode and the size of original Thermomagnetic type circuit breaker outlet terminal.On the magnet ring of current transformer 3, be provided with the insulation course preventing with current-carrying plate 5 short circuits, the magnet ring that has guaranteed current transformer 3 not can with current-carrying plate 5 short circuits, on the magnet ring of current transformer 3, wind the line and draw two lead-in wires, when the circuit on circuit board 7 is powered, providing the signal-powered road of real-time parameter of main circuit current to carry out being output into current digital signal after signal conversion.Circuit board 7 is also installed in pedestal 1, in the present embodiment, circuit board 7 is vertically placed in pedestal 1, circuit board 7 is connected with a plurality of current transformers 3 respectively by wire, in addition, circuit board 7 can be connected with the lead-in wire of current transformer 3 by the mode of inserting terminal or directly welding, is provided with the communication interface 8 that can connect with external communication circuit on circuit board 7.By communication interface 8, can connect with external communication circuit, transmit real-time main circuit current parameter.In the present embodiment, circuit board 7 is vertically placed in pedestal 3, can significantly reduce isolating switch or communication device at the length dimension of line extreme direction, has reduced interference.
In the present embodiment, the core material of current transformer 3 adopts the high permeability materials such as ultracrystallite material or permalloy material to make, the present embodiment is to adopt permalloy material to make, the volume of current transformer is applicable to 25mm one pole width Thermomagnetic type isolating switch, its outside dimension is 22-25mm, rated operational current is 125A, and the 5-10 that maximum operating currenbt is rated operational current doubly.Also can adopt in addition siliconized plate or permalloy material.The core material of current transformer 3 adopts high permeability materials to make, dwindled small product size, improved mutual inductor output electric energy, can guarantee that circuit normally works, simultaneously because communication detection function is separated with defencive function, therefore it is significantly saturated only to require iron core can not occur under major loop 3-5 rated current doubly, as simultaneously effective in detected with defencive function, make circuit carry out the calculating of normal electrical flow valuve and output (by the requirement of GB14048.2 product GB to main circuit current, circuit breaker time-delay current maximal value is 10-12 rated current doubly, therefore it is significantly saturated that the current transformer core of electronic breaker requires can not occur under major loop 10-12 rated current doubly, remarkable saturated meeting causes sample rate current wave form distortion and cannot calculate current value), therefore transformer iron core and overall dimensions can significantly reduce.
In the above-described embodiments, after traditional Thermomagnetic type isolating switch, be connected in series this current detecting and communication device, current transformer 3 in this current detecting and communication device is powered the circuit on the circuit board to built-in 7, and provide the current analog signal of major loop, after processing by circuit computing, can the current value of major loop be sent in outside data sink in real time by the communication interface 8 on current detecting and communication device, the present embodiment can reduce in circuit power consumption at least 60% situation, guarantee that the circuit on 3 pairs of circuit boards 7 of current transformer carries out normal power supply.The present embodiment topology layout is simple, good reliability, can realize standardized, for current detecting and the communication device of Thermomagnetic type isolating switch, realized defencive function separated with communication detection function, the belt current of simultaneously realizing small size more detects and communication function.
Fig. 6 shows current detecting and the communication device that a kind of Thermomagnetic type isolating switch of the utility model uses and is arranged on the structural representation on traditional Thermomagnetic type isolating switch.In Fig. 6, current detecting and communication device are to be placed in Thermomagnetic type isolating switch 11, current detecting and communication device are to insert in the mounting groove of Thermomagnetic type isolating switch 11 leading-out terminal phase partitions by the convex tendon I 9 on its pedestal 1 and lid 2 and convex tendon II 10, and the convex tendon I 9 on pedestal 1 and lid 2 and convex tendon II 10 match with the mounting groove of Thermomagnetic type isolating switch 11 leading-out terminal phase partitions.In addition, current detecting and communication device also can be built in Thermomagnetic type isolating switch 11.
Above-described embodiment is to provide to being familiar with person in the art and realizes or use of the present utility model; those skilled in the art can be in the situation that not departing from the utility model thought; above-described embodiment is made to various modifications and variation; thereby protection domain of the present utility model is not to be limit by above-described embodiment, and it should be the maximum magnitude that meets the character of innovation that claim mentions.
Claims (6)
1. Thermomagnetic type isolating switch is used current detecting and a communication device, is characterized in that: described current detecting and communication device are comprised of housing, current transformer and circuit board; Housing is comprised of base and cover, internal linear display at housing is provided with a plurality of current transformers corresponding with the outlet terminal of Thermomagnetic type isolating switch, the magnet ring central through hole place of described current transformer is fixed with current-carrying plate, one end of current-carrying plate can connect with Thermomagnetic type circuit breaker outlet terminal, on the magnet ring of current transformer, be provided with the insulation course preventing with current-carrying plate short circuit, circuit board is also installed in housing, circuit board is connected with a plurality of current transformers respectively by wire, is provided with the communication interface that can connect with external communication circuit on circuit board; The outside dimension of described current transformer is 22-25mm, and rated operational current is 125A, and the 5-10 that maximum operating currenbt is rated operational current doubly.
2. a kind of Thermomagnetic type isolating switch according to claim 1 is used current detecting and communication device, is characterized in that: the end face being connected with Thermomagnetic type isolating switch on pedestal is interval with a plurality of convex tendon I corresponding with mounting groove Thermomagnetic type breaker outgoing line end phase partition.
3. a kind of Thermomagnetic type isolating switch according to claim 1 is used current detecting and communication device, is characterized in that: be interval with a plurality of convex tendon II corresponding with mounting groove Thermomagnetic type breaker outgoing line end phase partition covering the end face being connected with Thermomagnetic type isolating switch.
4. a kind of Thermomagnetic type isolating switch according to claim 1 is used current detecting and communication device, it is characterized in that: the end face being connected with Thermomagnetic type isolating switch on base and cover is interval with respectively a plurality of convex tendon I and the convex tendon II corresponding with mounting groove Thermomagnetic type breaker outgoing line end phase partition, and on described pedestal, convex tendon I is corresponding with the position that covers convex tendon II.
5. a kind of Thermomagnetic type isolating switch according to claim 1 is used current detecting and communication device, is characterized in that: described circuit board is vertically placed in pedestal.
6. a kind of Thermomagnetic type isolating switch according to claim 1 is used current detecting and communication device, is characterized in that: the core material of described current transformer adopts ultracrystallite material or permalloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420236550.9U CN203838225U (en) | 2014-05-09 | 2014-05-09 | Current detection and communication apparatus for thermo-magnetic circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420236550.9U CN203838225U (en) | 2014-05-09 | 2014-05-09 | Current detection and communication apparatus for thermo-magnetic circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203838225U true CN203838225U (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420236550.9U Expired - Fee Related CN203838225U (en) | 2014-05-09 | 2014-05-09 | Current detection and communication apparatus for thermo-magnetic circuit breaker |
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| Country | Link |
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| CN (1) | CN203838225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995170A (en) * | 2014-05-09 | 2014-08-20 | 安庆天瑞新材料科技股份有限公司 | Current detection and communication device for thermomagnetic breaker |
-
2014
- 2014-05-09 CN CN201420236550.9U patent/CN203838225U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995170A (en) * | 2014-05-09 | 2014-08-20 | 安庆天瑞新材料科技股份有限公司 | Current detection and communication device for thermomagnetic breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140917 Termination date: 20160509 |