CN105703328B - A kind of Self-recover overvoltage-undervoltage protector and method of work - Google Patents
A kind of Self-recover overvoltage-undervoltage protector and method of work Download PDFInfo
- Publication number
- CN105703328B CN105703328B CN201610130804.2A CN201610130804A CN105703328B CN 105703328 B CN105703328 B CN 105703328B CN 201610130804 A CN201610130804 A CN 201610130804A CN 105703328 B CN105703328 B CN 105703328B
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- China
- Prior art keywords
- circuit board
- self
- shell
- branch circuit
- indicator light
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
- H02H3/207—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage also responsive to under-voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
Abstract
The invention discloses a kind of Self-recover overvoltage-undervoltage protectors, including shell, operating circuit plate is equipped in shell, operating circuit plate is connected with processor, relay, indicator light and control switch, the operating circuit plate includes main circuit board and branch circuit board, main circuit board is electrically connected with branch circuit board, the relay is set on main circuit board, the indicator light is installed on the branch circuit board, the shell, which is equipped with, houses first mounting hole of indicator light, branch circuit board is fixed on the outer casing inner wall, the invention also discloses the method for works of the Self-recover overvoltage-undervoltage protector, it is the advantage of the invention is that easy to assembly, reduce the damage to indicator light, reduce the Innovation Input of similar product.
Description
【Technical field】
The present invention relates to a kind of Self-recover overvoltage-undervoltage protector and method of works.
【Background technology】
Self-recover overvoltage-undervoltage protector is a kind of common protection type electric appliance in circuit system, and core is relay
Device and processor, processor control relay by acquiring the current or voltage information in circuit, when supply line occurred
When voltage, under-voltage, Self-recover overvoltage-undervoltage protector can safely cut off circuit, and abnormal voltage is avoided to be sent into terminal appliance and is caused
The generation of accident, when voltage restores normal value, protector will automatic processing circuit at the appointed time, it is ensured that terminal appliance is in nothing
Normal operation in the case of people is on duty, traditional self-resetting type overvoltage protector is equipped with the indicator light of instruction on the shell, by runback
The installation environment of formula overvoltage protector influences, and indicator light is all set on the top surface of self-resetting type overvoltage protector to facilitate user that can see
Arrive, but this design is there is also drawback, since self-resetting type overvoltage protector is all flat design, built in circuit board be perpendicular
Formula is put, is vertically arranged with top surface, indicator light is usually light emitting diode, and welding pin needs progress bending that can just make
Indicator light is designed towards top surface, not only complex process, and assembling is cumbersome, and is easily damaged to indicator light.
【Invention content】
Problem to be solved by this invention is just to provide a kind of Self-recover overvoltage-undervoltage protector, easy to assembly, reduces to referring to
Show the damage of lamp, reduce the Innovation Input of similar product.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of Self-recover overvoltage-undervoltage protector including shell, is equipped with operating circuit plate, operating circuit plate is connected with place in shell
It manages device, relay, indicator light and control switch, the operating circuit plate and includes main circuit board and branch circuit board, main circuit board
It is electrically connected with branch circuit board, the relay is set on main circuit board, and the indicator light is installed on the branch circuit board, described outer
Shell, which is equipped with, houses first mounting hole of indicator light, and branch circuit board is fixed on the outer casing inner wall.
Preferably, first mounting hole is set on the roof of shell, and the branch circuit board is described close to housing top inside
Main circuit board is vertically set below housing top.
Preferably, the shell is equipped with the switch slot of the accommodating control switch, and the control switch is thin film switch,
The branch circuit board is equipped with background light in the lower section of thin film switch.
Preferably, the background light is fixedly arranged on the branch circuit board, and the switch slot, which is equipped with, houses the background light
The second mounting hole.
Preferably, the branch circuit board is equipped with via between background light and indicator light, and fastener passes through via and shell
It is fixed.
Preferably, the branch circuit board shape is elongated, and width is 3mm~15cm.
Preferably, the projection of the branch circuit board towards housing top is set in oblique.
Preferably, the indicator light, background light, via be on the same line.
Preferably, two slots are equipped in the shell, wherein a front side wall close to shell, another close to shell
Rear wall, the main circuit board is inserted in a slot.
Beneficial effects of the present invention：Self-recover overvoltage-undervoltage protector in the present invention, operating circuit plate include main circuit board and
Branch circuit board, main circuit board and branch circuit board split design, the electronic component for wherein setting some big on main circuit board, such as after
Electric appliance, capacitance etc., and indicator light is set on branch circuit board, branch circuit board is directly anchored on the outer casing inner wall, branch circuit board
It can be directly electrically connected with main circuit board by conducting wire, after being so designed that, the welding pin of indicator light need not carry out bending, reduce
In addition damage to indicator light has been also convenient for the electronic component layout of main circuit board, without considering where setting
Indicator light ensures indicator light as possible close to shell, facilitates interior layout, and assembling is also convenient for, simultaneously as branch circuit
Plate be it is independent fixed on the shell, this part is made to have become as a modular entirety, user can be clever according to actual needs
The main circuit board living for replacing different size relay, i.e. similar product only need to change main circuit board, and branch circuit board, shell are equal
Without redesigning, replacing, reduce to Innovation Inputs such as the molds of product, reduce cost.
In addition, the invention also discloses the method for work of the Self-recover overvoltage-undervoltage protector, step is as follows：
A, signal acquisition：Acquire the voltage value in circuit；
B, data processing：
Measuring and calculating processing is carried out according to collected voltage value, step is as follows：
Average value mu, average value are the DC component acquired in signal：
In formula：μ is average value, and N is each cycle sampling number, and Xi is the voltage value of each cycle acquisition；
Standard deviation sigma, standard deviation are the AC compounent acquired in signal, based on average value mu, utilize the calculating of the standard deviation
Formula calculates standard deviation, and the calculation formula of standard deviation is as follows：
In formula：σ is standard deviation, and N is each cycle sampling number, and Xi is the voltage value of each cycle acquisition, and μ is average value；
During frequency analysis, 2 can be samplednPoint, does Fast Fourier Transform (FFT)；
C：Data correction；
D：Status information is shown on indicator light by data analysis after the completion of analysis, and transmits a signal to processor, place
The driving relay power-off of reason device works on.
The present invention these features and advantages will be detailed in following specific embodiment, attached drawing exposure.
【Description of the drawings】
The present invention is described further below in conjunction with the accompanying drawings：
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the schematic cross-sectional view of the present invention；
Fig. 3 is the elevational schematic view that upper casing installs after branch circuit board in the present invention；
Fig. 4 does not install the schematic diagram before branch circuit board for upper casing in the present invention；
Fig. 5 is the structure diagram of branch circuit board in the present invention；
Fig. 6 is the elevational schematic view of upper casing in the present invention；
Schematic diagram when Fig. 7 is Data correction.
【Specific embodiment】
With reference to Fig. 1~6, the present embodiment is a kind of Self-recover overvoltage-undervoltage protector, including shell 1, the global shape of shell 1
It substantially in " convex " shape, is described below for convenience, by taking Fig. 1 as an example, the upper surface for defining shell 1 is top surface, and lower face is bottom surface, is used
It is respectively left side and right side in the both sides of wiring, it is front side wall and rear wall to be left two smooth surfaces, outer described in the present embodiment
Shell 1 includes upper casing 11 and lower casing 12, and the outer wall of the lower casing 12 is equipped with locating slot 121, and locating slot 121 is respectively provided at lower casing 12
On front side wall and rear wall, the shape of locating slot 121 is trapezoidal, and upper casing 11 outer wall is equipped with to be determined with 121 matching of locating slot
Position flange 111, the shape of locating flange 111 is also trapezoidal, and upper casing 11 and lower casing 12 pass through locating flange 111 and locating slot 121
Realize positioning assembling, shell 1 is respectively arranged on the left side and the right side wiring hole 10.
Operating circuit plate is equipped in shell 1, operating circuit plate is connected with processor, relay 21, indicator light 22 and control and opens
23 are closed, the operating circuit plate includes main circuit board 201 and branch circuit board 202, and main circuit board 201 is logical with branch circuit board 202
It crosses conducting wire 29 to be electrically connected, in the present embodiment, relay 21, processor, safety capacitance 24, electrolysis is fixed on main circuit board 201
Capacitance 25 is connected with terminal plate 26 by conducting wire on main circuit board 201, terminal screw 27 is screwed on terminal plate, is maximally utilized
The inner space of shell 1, the main circuit board 201 are vertically set below 1 roof of shell.Indicator light 22 is two level in the present embodiment
Luminous tube, diode luminescence pipe are welded on the branch circuit board 202, and the roof of the upper casing 11, which is equipped with, houses the indicator light 22
The first mounting hole 112, during assembling, branch circuit board 202 be welded with the one of indicator light 22 facing towards upper casing 11 roof, indicator light
In 22 the first mounting holes 112 of insertion, branch circuit board 202 is right in order to increase by the first mounting hole 112 close to 11 roof of upper casing and fixation
The positioning of indicator light 22, the hole wall of the first mounting hole 112 extends the bottom wall of upper casing down in the present embodiment, to increase indicator light
22 and first mounting hole 112 contact area, after being so designed that, the welding pin of indicator light 22 need not carry out bending, reduce
In addition damage to indicator light 22 has been also convenient for the electronic component layout of main circuit board 201, without considering where setting
Indicator light 22 is put to ensure that indicator light 22 close to 11 roof of upper casing, facilitates interior layout, and assembling is also convenient for as possible.
Simultaneously as branch circuit board 202 is individually fixed on shell 1, have become this part modular for one
Whole, user can flexibly replace the main circuit board of different size relay according to actual needs, i.e. similar product only needs to change
Main circuit board 201, branch circuit board 202, shell 1 without redesigning, replacing, reduce to mold of similar product etc.
Innovation Input reduces cost, for the starting point, in the present embodiment, two slots 122 is equipped in the lower casing 12, wherein one
Item is inserted a slot close to the front side wall of lower casing 12, another rear wall close to lower casing 12, the main circuit board 201
In 122, the main circuit board 201 of different size can be inserted in one of slot 122, while with the master of specification according to actual needs
Circuit board 201 can select front to be inserted into still reverse side insertion in two slots 122, not affect product work, very clever
It is living free, but traditional protector cannot accomplish in this way, because traditional indicator light 22 is to be directly welded at main circuit board 201
On, the bending direction of pin, the welding position of indicator light 22 all strongly limit the installation degree of freedom of main circuit board 201, no
Facilitate layout, it is very low to space utilization rate.
In order to maximally utilize the position advantage of branch circuit board 202, the roof of the upper casing 11, which is equipped with, houses the control
23 switch slot 113 is switched, switch slot 113 is square groove in the present embodiment, and the control switch 23 is thin film switch, switchs slot
113 are equipped with and facilitate conducting wire or cable-through hole 114 that conveyor passes through, the branch circuit board 202 are set below thin film switch
Have powerful connections lamp 25, and background light source, user-friendly control switch 23 can be provided for thin film switch using background light 25, and passes
The Self-recover overvoltage-undervoltage protector of system is generally not provided with background light 25 since the background light 25 of setting bending-like is complex, and
The present invention can smoothly solve the problems, such as this due to being provided with branch circuit board 202.
In order to preferably position branch circuit board 202, the background light 25 is fixedly arranged on the branch circuit board 202, described to open
It closes slot 113 and is equipped with the second mounting hole 115 for housing the background light 25, after assembling, background light 25 is embedded in the second mounting hole 115
Interior, indicator light 22 is embedded in the positioning method of the first mounting hole 112 before cooperation, and two anchor points position branch circuit board completely
202 so that branch circuit board 202 does not rotate, while branch circuit board 202 is equipped with via between background light 25 and indicator light 22
26, the fasteners such as screw are fixed across via 26 with 1 inner wall of shell, so as to be completely fixed branch circuit board 202.
In order to reduce material cost, more wiring spaces are vacateed, 202 shape of branch circuit board is elongated, width
For 3mm~15cm, material saves very much, it might even be possible to carry out blanking forming, and strip using the leftover pieces of main circuit board 201
After branch circuit board 202 is fixed, it there remains many spaces and come out, facilitate cabling, the branch circuit board 202 is towards 1 roof of shell
Projection is in oblique and set, and from figure, the oblique direction of optimization is along the diagonal of 11 roof of upper casing, in this way after design
The space of 202 both sides of branch circuit board is relatively uniform, and main circuit board 201 is positive to be placed or place anyway, from branch circuit board
202 to be connected to the conducting wire 29 of main circuit board 201 its cabling scenario all unaffected.It processes for convenience simultaneously, the indicator light
22nd, on the same line, assembling is also more convenient for background light 25, via 26.
In the present embodiment, the bottom of the lower casing 12 is equipped with the mounting groove 123 of front and rear perforation, the protection of this Self-recover overvoltage-undervoltage
Device is installed to by mounting groove 123 on the installation guide rail of strip, and installation guide rail is not shown, and traditional self-resetting type is excessively deficient
When pressing protector installation, then installation guide rail is fixed, to prevent from owing fitted to mounting groove 123 with fasteners such as screws
Protector is pressed to be detached from installation guide rail, the present embodiment is improved fixed form, is set in the wherein one side wall of the mounting groove 123
There is stop block 124, another side wall is equipped with movable latch 125, and installation guide rail is equipped with supplying stop block 124 and movable latch
The jack of 125 insertions, stop block 124 are equipped with inclined-plane, and the insertion end of movable latch 125 also is provided with inclined-plane, stop block 124 it is oblique
Face is parallel with the inclined-plane of movable latch 125, and the inclined-plane in stop block 124 is to facilitate to tilt Self-recover overvoltage-undervoltage protector one end
In embedded installation guide rail, the inclined-plane of movable latch 125 is that the insertion end of movable latch carries when being and being inserted into jack for movable latch 125
For guiding role, the concrete structure of the movable latch 125 in the present embodiment as shown in fig. 6, including intermediate support portion 1251 and
The elastic portion 1252 of 1251 both sides of support portion is located at, each elastic portion 1252 is extended with wedge angle flange 1253, lower casing 12 toward side
Bottom be equipped with for the wedge angle groove 126 that limits the wedge angle flange.
The present embodiment specific works step is as follows：
A, signal acquisition：Acquire the voltage value in circuit；
B, data processing：
Measuring and calculating processing is carried out according to collected voltage value, step is as follows：
Average value mu, average value are the DC component acquired in signal：
In formula：μ is average value, and N is each cycle sampling number, and Xi is the voltage value of each cycle acquisition；
Standard deviation sigma, standard deviation are the AC compounent acquired in signal, based on average value mu, utilize the calculating of the standard deviation
Formula calculates standard deviation, and the calculation formula of standard deviation is as follows：
In formula：σ is standard deviation, and N is each cycle sampling number, and Xi is the voltage value of each cycle acquisition, and μ is average value；
During frequency analysis, 2 can be samplednPoint, does Fast Fourier Transform (FFT), and formula is as follows：
Forward Discrete Fourier Transform(DFT)：
Inverse Discrete Fourier Transform(IDFT)：
For voltage sampling signal, fast Fourier transform analysis is carried out, processing can obtain and network voltage fundamental frequency
Outside identical component, moreover it is possible to obtain a series of components more than network voltage fundamental frequency；
C：Data correction：Electromagnetic component that may be present can cause acquisition signal and practical believe during voltage signal acquisition
Non-linear distortion between number.In order to compensate for correct these errors for bringing of distortion, it is also necessary to be segmented with calculus concept
It is calibrated and compensated for, as shown in fig. 7, differential is to the linear description of one kind of the localized variation of function.Differential can be described approx
When the variable quantity value of function argument makees sufficiently small, how the value of function changes.For example L is non-linear letter in figure
Number, T is linear signal, but when the variable quantity △ x of x tend to 0, and it is the linear letter similar at P points that can be approximately considered at Q points
Number.Linear signal processing becomes to be relatively easy to, by linear function, to realize calibration function；
For linear signal, it is believed that be linear function：Y=kx+b, k and b are constant, and k ≠ 0；
Wherein y is measured value, and x is sampled value.External perimysium reference source is exported y1, accesses Self-recover overvoltage-undervoltage by specific implementation
Protector measures sampled value x1 at this time；External perimysium reference source exports y2, accesses Self-recover overvoltage-undervoltage protector, measures at this time
Sampled value x2.By (x1, y1), (x2, y2) can computational constant k, b, i.e. calibration parameter, finally the calibration parameters such as k, b are deposited
Storage in the processor, is called for processor；
D：Status information is shown on indicator light by data analysis after the completion of analysis, and transmits a signal to processor, place
The driving relay power-off of reason device works on.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, and is familiar with
The those skilled in the art should be understood that the present invention includes but not limited to attached drawing and interior described in specific embodiment above
Hold.The modification of any function and structure principle without departing from the present invention is intended to be included in the range of claims.
Claims (9)
1. a kind of Self-recover overvoltage-undervoltage protector including shell, is equipped with operating circuit plate, operating circuit plate is connected with processing in shell
Device, relay, indicator light and control switch, it is characterised in that：The operating circuit plate includes main circuit board and branch circuit board,
Main circuit board is electrically connected with branch circuit board, and the relay is set on main circuit board, and the indicator light is installed in the branch circuit board
On, the shell is equipped with the first mounting hole for housing the indicator light, and the branch circuit board is fixed on the outer casing inner wall, described
First mounting hole is set on the roof of shell, and the branch circuit board is equipped with two slots close on the inside of housing top in the shell,
A wherein front side wall close to shell, another rear wall close to shell, the main circuit board are inserted a slot
In.
2. a kind of Self-recover overvoltage-undervoltage protector as described in claim 1, it is characterised in that：The main circuit board is vertically set on
Below housing top.
3. a kind of Self-recover overvoltage-undervoltage protector as claimed in claim 1 or 2, it is characterised in that：The shell, which is equipped with, to be held
The switch slot of the control switch is put, the control switch is thin film switch, and the branch circuit board is set below thin film switch
Have powerful connections lamp.
4. a kind of Self-recover overvoltage-undervoltage protector as claimed in claim 3, it is characterised in that：The background light is fixedly arranged on described
On branch circuit board, the switch slot is equipped with the second mounting hole for housing the background light.
5. a kind of Self-recover overvoltage-undervoltage protector as claimed in claim 3, it is characterised in that：The branch circuit board is in background light
Via is equipped between indicator light, fastener is fixed across via with shell.
6. a kind of Self-recover overvoltage-undervoltage protector as claimed in claim 3, it is characterised in that：The branch circuit board shape is in length
Bar shaped, width are 3mm~15cm.
7. a kind of Self-recover overvoltage-undervoltage protector as claimed in claim 6, it is characterised in that：The branch circuit board is towards shell top
The projection of wall is set in oblique.
8. a kind of Self-recover overvoltage-undervoltage protector as claimed in claim 5, it is characterised in that：The indicator light, background light, mistake
Hole is on the same line.
9. a kind of method of work of Self-recover overvoltage-undervoltage protector is protected using the Self-recover overvoltage-undervoltage of such as one of claim 1~8
Protect device, it is characterised in that：Include the following steps：
A, signal acquisition：Acquire the voltage value in circuit；
B, data processing：
Measuring and calculating processing is carried out according to collected voltage value, step is as follows：
Average value mu, average value are the DC component acquired in signal：
In formula：μ is average value, and N is each cycle sampling number, and xi is the voltage value of a collection point acquisition in a cycle；
Standard deviation sigma, standard deviation are the AC compounent acquired in signal, based on average value mu, utilize the calculation formula of the standard deviation
Standard deviation is calculated, the calculation formula of standard deviation is as follows：
In formula：σ is standard deviation, and N is each cycle sampling number, and xi is the voltage value of a collection point acquisition in a cycle, and μ is
Average value；
During frequency analysis, sampling 2nPoint, does Fast Fourier Transform (FFT)；
C：Data correction；
D：Status information is shown on indicator light by data analysis after the completion of analysis, and transmits a signal to processor, processor
The power-off of driving relay works on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610130804.2A CN105703328B (en) | 2016-03-08 | 2016-03-08 | A kind of Self-recover overvoltage-undervoltage protector and method of work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610130804.2A CN105703328B (en) | 2016-03-08 | 2016-03-08 | A kind of Self-recover overvoltage-undervoltage protector and method of work |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105703328A CN105703328A (en) | 2016-06-22 |
| CN105703328B true CN105703328B (en) | 2018-06-19 |
Family
ID=56221012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610130804.2A Active CN105703328B (en) | 2016-03-08 | 2016-03-08 | A kind of Self-recover overvoltage-undervoltage protector and method of work |
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| Country | Link |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703327B (en) * | 2016-03-08 | 2019-02-01 | 杭州鸿雁电力电气有限公司 | A kind of Self-recover overvoltage-undervoltage protector easy to assembly |
| CN106099844B (en) * | 2016-07-04 | 2019-09-06 | 厦门宏发开关设备有限公司 | A kind of easy-disassembling-assembling self-recovering type over-and under-voltage protector |
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| CN205610195U (en) * | 2016-03-08 | 2016-09-28 | 杭州鸿雁电力电气有限公司 | Assemble convenient double entry certainly and cross undervoltage protection ware |
| CN205610194U (en) * | 2016-03-08 | 2016-09-28 | 杭州鸿雁电力电气有限公司 | Self -reset overvoltage and undervoltage protector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208306A (en) * | 2011-05-31 | 2011-10-05 | 胡俊兵 | Low-voltage intelligent circuit breaker |
| CN202210499U (en) * | 2011-09-20 | 2012-05-02 | 胡俊兵 | Low voltage plastic housing intelligent breaker |
| CN203536318U (en) * | 2013-08-26 | 2014-04-09 | 江苏新晨电气有限公司 | Housing for self-reset over-voltage and under-voltage protector |
| CN204155879U (en) * | 2014-11-04 | 2015-02-11 | 大连理工常熟研究院有限公司 | A kind of control device for earth leakage protective device |
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| Publication number | Publication date |
|---|---|
| CN105703328A (en) | 2016-06-22 |
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Denomination of invention: A self compound over and under voltage protector and its working method Effective date of registration: 20201226 Granted publication date: 20180619 Pledgee: Bank of Communications Limited Hangzhou Lin'an sub branch Pledgor: HANGZHOU HONYAR ELECTRICAL Co.,Ltd. Registration number: Y2020330001099 |
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Date of cancellation: 20230620 Granted publication date: 20180619 Pledgee: Bank of Communications Limited Hangzhou Lin'an sub branch Pledgor: HANGZHOU HONYAR ELECTRICAL Co.,Ltd. Registration number: Y2020330001099 |