CN205610194U - Self -reset overvoltage and undervoltage protector - Google Patents

Abstract

The utility model discloses a self -reset overvoltage and undervoltage protector, including the shell, be equipped with working circuit board in the shell, working circuit board links has treater, relay, pilot lamp and control switch, working circuit board include a main circuit board and a circuit board, main circuit board and a circuit board electricity even, the relay is located on the main circuit board, the pilot lamp sets firmly prop up on the circuit board, the shell is equipped with the holding the first mounting hole of pilot lamp, a circuit board is fixed the shell inner wall, the equipment is convenient, reduces the damage to the pilot lamp, and the research and development that reduce the like product drop into.

Description

A kind of Self-recover overvoltage-undervoltage protector

[technical field]

This utility model relates to a kind of Self-recover overvoltage-undervoltage protector.

[background technology]

Self-recover overvoltage-undervoltage protector is a kind of common protection type electrical equipment in Circuits System, its core For relay and processor, processor controls relay by gathering the information of voltage in circuit, works as power supply When overvoltage, under-voltage occurs in circuit, Self-recover overvoltage-undervoltage protector can cut off circuit safely, it is to avoid different Often voltage sends into the generation that terminal appliance causes the accident, and when voltage recovers normal value, protector will be when regulation Interior automatic processing circuit, it is ensured that terminal appliance is properly functioning in the case of unmanned, traditional self-resetting type Overvoltage protector is provided with the display lamp of instruction on shell, by the installation environment shadow of self-resetting type overvoltage protector Ringing, display lamp is all located at the end face of self-resetting type overvoltage protector to facilitate user to see, but this design There is also drawback, owing to self-resetting type overvoltage protector is all flat design, its built-in circuit board is vertically placed type , it is vertically arranged with end face, display lamp is usually light emitting diode, and its welding pin needs to roll over Curved just can make display lamp towards end face design, not only complex process, assemble loaded down with trivial details, and easily be damaged to instruction Lamp.

[utility model content]

Problem to be solved in the utility model is just to provide a kind of Self-recover overvoltage-undervoltage protector, easy to assembly, Reduce the damage to display lamp, reduce the Innovation Input of like product.

For solving above-mentioned technical problem, this utility model adopts the following technical scheme that

A kind of Self-recover overvoltage-undervoltage protector, including shell, is provided with operating circuit plate, operating circuit in shell Plate is connected with processor, relay, display lamp and control switch, and described operating circuit plate includes main circuit board With a circuit board, main circuit board is electrically connected with a circuit board, and described relay is located on main circuit board, described finger Showing that lamp is installed on described circuit board, described shell is provided with accommodating described display lamp the first installing hole, an electricity Road plate is fixed on described outer casing inner wall.

Preferably, described first installing hole is located at the roof of shell, and described circuit board is pressed close in housing top Side, described main circuit board is vertically located at below housing top.

Preferably, described shell is provided with the accommodating described switch groove controlling switch, and described control switch is for thin Membrane switch, described circuit board is provided with background light in the lower section of thin film switch.

Preferably, described background light is fixedly arranged on described circuit board, and described switch groove is provided with accommodating described Second installing hole of background light.

Preferably, described circuit board is provided with via between background light and display lamp, and securing member passes via Fix with shell.

Preferably, described circuit board shape is elongated, and width is 3mm～15cm.

Preferably, described circuit board is oblique and set towards the projection of housing top.

Preferably, described display lamp, background light, via are on the same line.

Preferably, in described shell, it is provided with two slots, wherein a front side wall pressing close to shell, another Pressing close to the rear wall of shell, described main circuit board is inserted in a slot.

The beneficial effects of the utility model: Self-recover overvoltage-undervoltage protector in this utility model, operating circuit plate Including main circuit board and a circuit board, main circuit board and a circuit board split design, wherein set on main circuit board Put some big electronic components, such as relay, electric capacity etc., and on a circuit board, display lamp is set, an electricity Road plate is directly anchored on described outer casing inner wall, and a circuit board and main circuit board directly can carry out electricity by wire Even, after being so designed that, the welding pin of display lamp, without carrying out bending, decreases the damage to display lamp, Additionally it is also convenient for the electronic component layout of main circuit board, it is not necessary in view of where arranging display lamp Ensure that display lamp is tried one's best shell, facilitate interior layout, and assemble and be also convenient for, simultaneously as Circuit board is individually to be fixed on shell, makes this part become a modular entirety, and user is permissible Change the main circuit board of different size relay, i.e. like product the most flexibly and only need more change owner electricity Road plate, circuit board, shell all without redesigning, changing, decrease the mould to like product Deng Innovation Input, reduce cost.

These features of the present utility model and advantage will be detailed in following detailed description of the invention, accompanying drawing Disclose.

[accompanying drawing explanation]

Below in conjunction with the accompanying drawings this utility model is described further:

Fig. 1 is structural representation of the present utility model；

Fig. 2 is sectional structure schematic diagram of the present utility model；

Fig. 3 is the elevational schematic view that in this utility model, upper casing installs after propping up circuit board；

Fig. 4 is the schematic diagram that in this utility model, upper casing does not installs before propping up circuit board；

Fig. 5 is the structural representation of a circuit board in this utility model；

Fig. 6 is the elevational schematic view of upper casing in this utility model；

Fig. 7 is schematic diagram during Data correction.

[detailed description of the invention]

With reference to Fig. 1～6, the present embodiment is a kind of Self-recover overvoltage-undervoltage protector, including shell 1, shell 1 Global shape substantially in " convex " shape, is described below for convenience, as a example by Fig. 1, and the upper end of definition shell 1 Face is end face, and lower surface is bottom surface, is respectively left side and right side, remaining two light for the both sides of wiring Face is front side wall and rear wall, and shell 1 described in the present embodiment includes upper casing 11 and lower casing 12, described lower casing The outer wall of 12 is provided with locating slot 121, and locating slot 121 is respectively provided on front side wall and the rear wall of lower casing 12, The shape of locating slot 121 is trapezoidal, and upper casing 11 outer wall is provided with the locating flange mated with locating slot 121 111, the shape of locating flange 111 is also trapezoidal, and upper casing 11 and lower casing 12 by locating flange 111 and are determined Position groove 121 realize location assemble, shell 1 be respectively arranged on the left side and the right side wiring hole 10.

Being provided with operating circuit plate in shell 1, operating circuit plate is connected with processor, relay 21, display lamp 22 With control switch 23, described operating circuit plate includes main circuit board 201 and a circuit board 202, main circuit board 201 are electrically connected by wire 29 with a circuit board 202, in the present embodiment, main circuit board 201 is fixed with and continues Electrical equipment 21, processor, safety electric capacity 24, electrochemical capacitor 25, main circuit board 201 is connected by wire and has Patch panel 26, patch panel is screwed with terminal screw 27, maximally utilizes the inner space of shell 1, described master Circuit board 201 is vertically located at below shell 1 roof.In the present embodiment, display lamp 22 is diode luminescence pipe, two Level luminous tube is welded on described circuit board 202, and the roof of described upper casing 11 is provided with accommodating described display lamp First installing hole 112 of 22, during assembling, circuit board 202 is welded with the one of display lamp 22 facing to upper casing The roof of 11, display lamp 22 embeds in the first installing hole 112, and a circuit board 202 presses close to upper casing 11 roof also Fixing, in order to increase by first installing hole 112 location to display lamp 22, the first installing hole 112 in the present embodiment Hole wall down extend the diapire of upper casing, to strengthen display lamp 22 and the contact area of the first installing hole 112, After being so designed that, the welding pin of display lamp 22, without carrying out bending, decreases the damage to display lamp 22, Additionally it is also convenient for the electronic component layout of main circuit board 201, it is not necessary in view of where arranging display lamp 22 ensure that display lamp 22 is tried one's best upper casing 11 roof, facilitate interior layout, and assemble and be also convenient for.

Simultaneously as a circuit board 202 is individually to be fixed on shell 1, this part is made to have become a mould The entirety of massing, user can change the main circuit board of different size relay, i.e. the most flexibly Like product only need to change main circuit board 201, circuit board 202, shell 1 all without redesign, Change, decrease the Innovation Input such as the mould to like product, reduce cost, for this starting point, this reality Execute in example, be provided with two slots 122, wherein a front side wall pressing close to lower casing 12 in described lower casing 12, separately Article one, pressing close to the rear wall of lower casing 12, described main circuit board 201 is inserted in a slot 122, different The main circuit board 201 of specification can be inserted in one of slot 122 according to actual needs, simultaneously with the master of a specification Circuit board 201 can select front to insert in two slots 122 or reverse side inserts, and does not affects product work Making, very flexibly freely, but traditional protector can not be accomplished so, because traditional display lamp 22 is Be directly welded on main circuit board 201, the wrap direction of its pin, display lamp 22 welding position very the biggest Limit the installation degree of freedom of main circuit board 201, it has not been convenient to layout, the lowest to space utilization rate.

In order to maximally utilize the position advantage of a circuit board 202, the roof of described upper casing 11 is provided with accommodating institute Stating the switch groove 113 controlling switch 23, the present embodiment breaker in middle groove 113 is square groove, and described control switchs 23 is thin film switch, and switch groove 113 is provided with the cable-through hole 114 facilitating wire or transmission belt to pass, described Propping up circuit board 202 and be provided with background light 25 in the lower section of thin film switch, utilizing background light 25 can be thin film switch There is provided background light source, user-friendly control switch 23, and traditional Self-recover overvoltage-undervoltage protector due to The background light 25 arranging bending-like is complex, is typically not provided with background light 25, and is provided with a circuit board 202 After can solve this problem smoothly.

In order to preferably position a circuit board 202, described background light 25 is fixedly arranged on described circuit board 202, Described switch groove 113 is provided with the second installing hole 115 of accommodating described background light 25, after assembling, background light 25 embed in the second installing hole 115, and before cooperation, display lamp 22 embeds the location mode of the first installing hole 112, Two anchor points position prop up circuit board 202 completely so that a circuit board 202 does not rotates, and props up electricity simultaneously The securing members such as road plate 202 is provided with via 26 between background light 25 and display lamp 22, screw pass via 26 Fix with shell 1 inwall, thus be completely fixed a circuit board 202.

In order to reduce material cost, vacateing more wiring space, described circuit board 202 shape is elongated, Width is 3mm～15cm, and material saves very much, it might even be possible to use the leftover pieces of main circuit board 201 to fall Material molding, and after a circuit board 202 of strip is fixing, there remains a lot of spaces out, facilitate cabling, Described circuit board 202 is oblique and set towards the projection of shell 1 roof, from figure, and optimized oblique side To being the diagonal along upper casing 11 roof, so after design, the space of circuit board 202 both sides is the most equal Even, no matter main circuit board 201 forward is placed or anyway places, and is connected to main circuit board from a circuit board 202 Its cabling scenario of wire 29 of 201 is the most unaffected.Process for convenience, described display lamp 22, the back of the body simultaneously Scape lamp 25, via 26 on the same line, assemble the most more convenient.

In the present embodiment, the mounting groove 123 that the bottom of described lower casing 12 is through before and after being provided with, this self-resetting type mistake Pressure-failure protector is installed on the installation guide rail of strip by mounting groove 123, installs guide rail and shows the most in the drawings Go out, when traditional Self-recover overvoltage-undervoltage protector is installed, guide rail is installed and is fitted to mounting groove 123, then use spiral shell The securing members such as nail are fixed, and install guide rail to prevent overvoltage-undervoltage protector from departing from, and the present embodiment is to fixing side Formula improves, and a wherein sidewall of described mounting groove 123 is provided with stop block 124, and another sidewall is provided with Movable latch 125, installs the jack that guide rail is provided with and inserts for stop block 124 and movable latch 125, Stop block 124 is provided with inclined-plane, and the insertion end of movable latch 125 also is provided with inclined-plane, the inclined-plane of stop block 124 with The inclined-plane of movable latch 125 is parallel, and the inclined-plane in stop block 124 is convenient by Self-recover overvoltage-undervoltage protector one End tilts to embed to be installed in guide rail, for living when the inclined-plane of movable latch 125 is to insert jack for movable latch 125 The insertion end of dynamic latch provides guide effect, concrete structure such as Fig. 6 of the movable latch 125 in the present embodiment Shown in, including middle supporting part 1251 and the elastic 1252 that is located at supporting part 1251 both sides, each elasticity Portion 1252 is extended with wedge angle flange 1253 toward side, and the bottom of lower casing 12 is provided with for this wedge angle flange spacing Wedge angle groove 126.

The present embodiment specific works step is as follows:

A, signals collecting: gather the magnitude of voltage in circuit；

B, data process:

Carrying out measuring and calculating process according to the magnitude of voltage collected, step is as follows:

Average value mu, meansigma methods is to gather the DC component in signal:

$\mathrm{\μ}=\frac{1}{N}\underset{i=1}{\overset{N}{\mathrm{\Σ}}}{x}_i$

In formula: μ is meansigma methods, N is each cycle sampling number, x_iThe magnitude of voltage gathered for each cycle；

Standard deviation sigma, standard deviation is to gather the AC compounent in signal, based on average value mu, utilizes institute The computing formula stating standard deviation calculates standard deviation, and the computing formula of standard deviation is as follows:

$\mathrm{\σ}=\sqrt{\frac{1}{N}\underset{i=1}{\overset{N}{\mathrm{\Σ}}}{(x_i-\mathrm{\μ})}^2}$

In formula: σ is standard deviation, N is each cycle sampling number, x_iThe magnitude of voltage gathered for each cycle, μ For meansigma methods；

During frequency analysis, 2 can be sampledⁿPoint, does fast Fourier transform, and formula is as follows:

Forward Discrete Fourier Transform (DFT):

$X_k=\underset{n=0}{\overset{N-1}{\mathrm{\Σ}}}{x}_n\·e^{-i2\mathrm{\π}kn/N}$

Inverse Discrete Fourier Transform (IDFT):

$x_n=\frac{1}{N}\underset{k=0}{\overset{N-1}{\mathrm{\Σ}}}{X}_k{e}^{i2\mathrm{\π}kn/N}$

For voltage sampling signal, carrying out fast Fourier transform analysis, process can obtain and line voltage base Outside the component that wave frequency is identical, moreover it is possible to obtain a series of component more than line voltage fundamental frequency；

C: Data correction: during voltage signal acquisition electromagnetic component that may be present can cause collection signal and Non-linear distortion between actual signal.In order to compensate and revise the error that these distortions bring, in addition it is also necessary to use Calculus concept comes sectional calibration and compensation, as it is shown in fig. 7, differential is the one of the localized variation to function Linear description.Differential can describe when the variable quantity value of function argument is made sufficiently small approx, function Value how to change.In such as figure, L is nonlinear properties, and T is linear signal, but when the variable quantity of x When △ x tends to 0, can be approximately considered at Q point is the linear signal similar at P point.Linear signal processing Become to be relatively easy to, by linear function, 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.Implement, external perimysium reference source is exported y1, access runback Formula overvoltage-undervoltage protector, now measures sampled value x1；External perimysium reference source output y2, accesses self-resetting type the most deficient Pressure protector, now measures sampled value x2.Computational constant k is got final product by (x1, y1), (x2, y2), B, i.e. calibrates parameter, and finally by k, b etc. calibrates parameter and stores within a processor, calls for processor；

D: data analysis, is shown to status information on display lamp after having analyzed, and transmits a signal to place Reason device, processor drives relay power-off or works on.

The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model is also It is not limited to this, is familiar with this those skilled in the art and should be understood that this utility model includes but not limited to accompanying drawing Content described in detailed description of the invention above.Any without departing from function of the present utility model and structural principle Amendment be intended to be included in the scope of claims.

Claims (10)

1. a Self-recover overvoltage-undervoltage protector, including shell, is provided with operating circuit plate, work electricity in shell Road plate is connected with processor, relay, display lamp and control switch, it is characterised in that: described operating circuit Plate includes main circuit board and a circuit board, and main circuit board is electrically connected with a circuit board, and main electricity is located at by described relay On the plate of road, described display lamp is installed on described circuit board, and described shell is provided with accommodating described display lamp First installing hole, described circuit board is fixed on described outer casing inner wall.

2. a kind of Self-recover overvoltage-undervoltage protector as claimed in claim 1, it is characterised in that: described first Installing hole is located at the roof of shell, and described circuit board is pressed close to inside housing top, and described main circuit board is vertical It is located at below housing top.

3. a kind of Self-recover overvoltage-undervoltage protector as claimed in claim 1 or 2, it is characterised in that: described Shell is provided with the accommodating described switch groove controlling switch, and described control switch is thin film switch, described electricity Road plate is provided with background light in the lower section of thin film switch.

4. a kind of Self-recover overvoltage-undervoltage protector as claimed in claim 3, it is characterised in that: described background Lamp is fixedly arranged on described circuit board, and described switch groove is provided with the second installing hole of accommodating described background light.

5. a kind of Self-recover overvoltage-undervoltage protector as claimed in claim 4, it is characterised in that: described electricity Road plate is provided with via between background light and display lamp, and securing member is fixed through via with shell.

6. a kind of Self-recover overvoltage-undervoltage protector as claimed in claim 3, it is characterised in that: described electricity Road plate shape is elongated, and width is 3mm～15cm.

7. a kind of Self-recover overvoltage-undervoltage protector as claimed in claim 6, it is characterised in that: described electricity Road plate is oblique and set towards the projection of housing top.

8. a kind of Self-recover overvoltage-undervoltage protector as claimed in claim 5, it is characterised in that: described instruction Lamp, background light, via are on the same line.

9. a kind of Self-recover overvoltage-undervoltage protector as claimed in claim 1, it is characterised in that: described shell Inside being provided with two slots, wherein a front side wall pressing close to shell, another presses close to the rear wall of shell, institute State main circuit board to be inserted in a slot.

10. a kind of Self-recover overvoltage-undervoltage protector as claimed in claim 1, it is characterised in that: described shell Bottom be provided with before and after the most through mounting groove, a wherein sidewall of described mounting groove is provided with stop block, another Sidewall is provided with movable latch.