CN209015378U

CN209015378U - A kind of control detection warning circuit suitable for small-power electricity consumption

Info

Publication number: CN209015378U
Application number: CN201821351890.0U
Authority: CN
Inventors: 姜捷
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-08-22
Filing date: 2018-08-22
Publication date: 2019-06-21
Anticipated expiration: 2028-08-22

Abstract

The utility model discloses a kind of controls suitable for small-power electricity consumption to detect warning circuit; including leakage protection circuit, current-limiting circuit and warning circuit; the utility model has the beneficial effects that there is earth leakage protective, power limit, self- recoverage and overpower to use electric appliance warning function each branch circuit.

Description

A kind of control detection warning circuit suitable for small-power electricity consumption

Technical field

The utility model belongs to distribution technique field, and in particular to a kind of control detection alarm suitable for small-power electricity consumption Circuit.

Background technique

As power technology deepens continuously our life, people increasingly be unable to do without AC power source, in certain use In electric field scape, power supply general power is limited, such as dormitory, lodging personnel belong to public expense electricity consumption, is not suitable for installation electrical energy measurement Utensil had not only needed to provide the electric energy of certain power to each room, but also has needed to limit the general power in each room, in order to solve Place personnel's Misuse high-power electric appliance problem, it is therefore desirable to provide overpower using warning function, circuit overpower uses limit System uses power, removes circuit self-recovering function after overpower electric appliance, and existing distribution technique scheme does not have function described above Energy.

Utility model content

In order to realize that above-mentioned distributing function, the utility model provide a kind of control detection alarm suitable for small-power electricity consumption Circuit, to solve the problems, such as the limitation of the overpower in small-power electricity consumption scene, alarm and self- recoverage.

To achieve the above object, the utility model uses following technical scheme:

A kind of control detection warning circuit suitable for small-power electricity consumption, including leakage protection circuit, current-limiting circuit and report The current limiting element of alert circuit, the current-limiting circuit uses self- recoverage element；Leakage protection circuit provides creepage protection function, avoids The electric shock to user of service of leaking electricity injures, and current-limiting circuit provides overpower limitation function, and warning circuit provides overpower by cable Alert function.

Further, the earth leakage protective device selects the product of People Electrical Appliances Group Co., Ltd., model: DZ47LE- 63, number of poles: 2P, arc quenching method: magnetic blast breaker, rated current: 6A ~ 63A is selected according to actual needs.

Further, the current limiting element of the current-limiting circuit uses self- recoverage element.

Further, the self- recoverage element use incandescent lamp, national standard power bracket 15W ~ 1000W of incandescent lamp, It can choose single light bulb current limliting according to the size of actual branch electricity consumption distribution power, it is in parallel also to can choose multiple light bulbs, and one As in the case of, the power of current limiting element is 6 times of branch's electricity consumption distribution power.

Further, the power of the current limiting element is according to the electrical design power selection for distributing branch.

Further, the current-limiting circuit and the warning circuit are in parallel.

Further, the warning circuit and electricity consumption end type of attachment have 3 kinds, are respectively as follows: the warning circuit and electricity consumption End series connection；The warning circuit and electricity consumption end are in parallel；The warning circuit has 2, respectively with electricity consumption end series connection and in parallel.

Further, the current-limiting circuit is made of current limiting element, and the current limiting element has reverse current property, i.e., just Common electric load current limiting element pressure drop is very low, and overpower load electricity consumption current limiting element resistance increases rapidly.The current limiting element makes With incandescent bulb.

In foregoing circuit, AC power source connects earth leakage protective device first, and in case of the accident of electric leakage, earth leakage protective device is dynamic Make, cuts off the power；Normal electricity consumption power rating, incandescent lamp are in cold conditions, resistance very little, about the 10% of hot resistance, current limliting Voltage drop very little on element, the voltage very little at the both ends of alarm, alarm do not work, if electricity consumption personnel's overpower uses Electric appliance, voltage drop increases on incandescent lamp, and electric current increases therewith, and filament becomes hot from cold conditions, and resistance sharply increases, voltage drop with Increase, and this circulation rapidly accumulation complete, alarm both end voltage raising reach alarm work voltage after, sending sound Light alarm, the voltage at electricity consumption end becomes smaller at this time, is not able to satisfy loaded work piece needs；If user of service pulls up load, electricity consumption electricity Stream becomes zero, and incandescent lamp filament temperature gradually decreases, and when being reduced under a temperature, reuses in rated operating range Load, so that it may which normal use is equivalent to the technical program in this way and is provided with self-recovering function.

The beneficial effects of the utility model are: entire circuit has creepage protection function, electric leakage accident, which occurs, to be cut off Power supply；Have overpower using power limit each branch circuit, remove overpower electric appliance self- recoverage and overpower use Electric appliance warning function.

Detailed description of the invention

Fig. 1 is a kind of block diagram of the control detection warning circuit suitable for small-power electricity consumption of the utility model；

Fig. 2 is a kind of circuit diagram one of the control detection warning circuit suitable for small-power electricity consumption of the utility model；

Fig. 3 is a kind of circuit diagram two of the control detection warning circuit suitable for small-power electricity consumption of the utility model；

In figure, R1, current limiting element 1；R2, current limiting element 2；Rn, current limiting element n；B1, alarm 1；B2, alarm 2；Bn, Alarm n；C1, power-off alarm 1；C2, power-off alarm 2；Cn, power-off alarm n.

Specific embodiment

The utility model is described with reference to the accompanying drawing, as shown in Figure 1, a kind of control suitable for small-power electricity consumption Warning circuit is detected, including earth leakage protective device, current-limiting circuit and warning circuit, the earth leakage protective device are connected to electric power incoming line End, every other circuit element are connected to behind earth leakage protective device.

As shown in Fig. 2, one end of phase line output connection alternating current ammeter, the other end of alternating current ammeter connect subsequent point Branch circuit, all branch circuits are connected in parallel, each branch circuit phase line connection current limit circuit and warning circuit, current-limiting circuit It is connected in parallel with warning circuit.

Wherein, socket 1, socket 2 ... ..., socket n setting can be set in each electricity consumption end, each room as needed Several sockets, to meet electricity consumption needs, for each socket, the overpower that this programme provides difference uses limitation function.

As shown in figure 3, one end of phase line output connection alternating current ammeter, the other end of alternating current ammeter connect subsequent point Branch circuit, all branch circuits are connected in parallel, each branch circuit phase line connection current limit circuit and warning circuit, current-limiting circuit It is connected in parallel with warning circuit, in addition increases connection power-off alarm, power-off alarm and branch circuit are in parallel.

The power-off alarm uses brand T-GUAN, model: TGDD-002, power-off triggering alarm.

Wherein, socket 1, socket 2 ... ..., socket n setting can be set in each electricity consumption end, each room as needed Several sockets, to meet electricity consumption needs, for each socket, this programme provides overpower and uses limitation function.

Claims

1. a kind of control suitable for small-power electricity consumption detects warning circuit, including leakage protection circuit, it is characterised in that: also wrap Current-limiting circuit and warning circuit are included, the current-limiting circuit and electricity consumption end are connected in series, and the current-limiting circuit is made of current limiting element, The current limiting element is according to the electrical design power selection of distribution branch, and the current limiting element is with reverse current property, i.e., just Common electric load current limiting element pressure drop is very low, and overpower load electricity consumption current limiting element resistance increases rapidly, and the current limiting element makes With incandescent bulb, the current-limiting circuit and the warning circuit are in parallel.