CN201757300U

CN201757300U - High-power lamp with self-locking function in case of power-off

Info

Publication number: CN201757300U
Application number: CN2010202429979U
Authority: CN
Inventors: 朱兆根; 洪伟
Original assignee: HUIZHOU CHANGXIANG STAR ELECTRONICS CO Ltd
Current assignee: HUIZHOU CHANGXIANG STAR ELECTRONICS CO Ltd
Priority date: 2010-06-30
Filing date: 2010-06-30
Publication date: 2011-03-09
Anticipated expiration: 2020-06-30

Abstract

The utility model discloses a high-power lamp with a self-locking function in case of power-off. The high-power lamp can keep the off state when the circuit which is off before is on again. The normally open switch button (SB) on a self-locking socket must be switched on to make the lighting assembly of the lamp work again. In this way, the power supply is saved and the normal service life of the high-power lamp is prolonged. The high-power lamp with a self-locking function in case of power-off in the utility model is innovative in that the mature relay and switch button elements are adopted; the circuit structure is innovatively designed; and the self-locking function of the lamp in case of power-off is achieved. The added circuit module is small in volume, simple in structure and convenient in making. Furthermore, the utility model which has a low price is easy for large-scale mass production.

Description

Large-power lamp cuts off self-lock

Technical field

The utility model relates to the lighting technology, specifically is meant a kind of large-power lamp that has the function that cuts off self-lock.

Background technology

Light fixture in the market can only be realized simple illumination functions mostly.It is generally at the direct extracting power supply cord of light fixture, or by a power supply adaptor extracting power supply cord, then directly inserts civil power.

When unexpected generation power outage, if the attaching plug of light fixture still is connected in civil power, then power suddenly when circuit, and the light fixture work of will switching on again.If this moment on-the-spot unmanned, management and control, and don't need throw light on the time, will waste power supply greatly.Especially large-power lamp such as street lamp if its power supply waste rate of long-term work is particularly outstanding, also is unfavorable for prolonging the normal service life of large-power lamp.

The utility model content

In order to overcome above-mentioned existing in prior technology shortcoming with not enough, the utility model proposes a kind of large-power lamp that has the function that cuts off self-lock, when sending a telegram here again after the down circuitry, the off-position that still can keep light fixture, must start often driving button (SB) and just can make the work of switching on again of lamp lighting assembly in the self-locking socket, save power supply, prolong normal service life of large-power lamp with this.

For reaching above-mentioned purpose, the utility model adopts following technical scheme to realize: the large-power lamp that cuts off self-lock, lamp interior are provided with the module and that cuts off self-lock and often drive button (SB); The described module that cuts off self-lock is provided with secondary linked switch (KM1-KM2), and when being in "on" position, can produce magnetic and make the secondary linked switch be in the AC electromagnetic coil of closure state (KM), described secondary linked switch (KM1-KM2) comprises branch switch (KM1) and branch switch (KM2); Wherein, described branch switch (KM1) series connection is controlled the break-make of live wire with this on the live wire of lamp lighting assembly power line; Described often opening formed series arm with AC electromagnetic coil (KM) after button (SB) is in parallel with branch switch (KM2), and this series arm is connected between the live wire and zero line of lamp lighting assembly power line.

The described button (SB) of often opening is not with the button switch for there being lock, the button of automatic disconnection behind the moment connection circuit when also being a kind of the click, and it is formed in parallel by a current-limiting resistance and a normally opened contact switch (K).

The described module that cuts off self-lock is preferably alternating current electromagnetic relay, this alternating current electromagnetic relay is provided with AC electromagnetic coil and a pair of interlock normally opened contact, wherein AC electromagnetic coil is as AC electromagnetic coil (KM), and described a pair of interlock normally opened contact is promptly as secondary linked switch (KM1-KM2).

The cut off self-lock operation principle of large-power lamp of the utility model is as follows:

1, after the outage, secondary linked switch (KM1-KM2) loses magnetism under AC electromagnetic coil (KM) spring action wherein by automatic disconnection because of AC electromagnetic coil (KM), at this moment, lamp lighting assembly and AC electromagnetic coil (KM) all are in off state; When powering once more, AC electromagnetic coil (KM) still opens circuit, can't adhesive secondary linked switch (KM1-KM2), so secondary linked switch (KM1-KM2), comprise that branch switch (KM1) and branch switch (KM2) all are in off state, owing to branch switch (KM1) is connected on the lamp lighting assembly power line live wire, so the lamp lighting assembly also opens circuit, so just can realize the auto-lock function after large-power lamp cuts off the power supply, thereby reach energy-conservation, purpose of safety;

2, when pressing when often driving button (SB), then AC electromagnetic coil (KM) energising produces magnetic with all adhesives of secondary linked switch (KM1-KM2); Unclamp and often drive button (SB), because (KM2) adhesive and with often to drive button (SB) in parallel, so AC electromagnetic coil (KM) is still connected work, secondary linked switch (KM1-KM2) just can not disconnect because of the disconnection of often driving button (SB); Lamp lighting assembly release this moment and energising operate as normal.

The utility model has the following advantages and beneficial effect compared to existing technology:

The utility model large-power lamp that cuts off self-lock, by management and control to the back light fixture light fixture state that cuts off the power supply, when sending a telegram here again after the down circuitry, the off-position that still can keep light fixture, must start often driving button (SB) and just can make the work of switching on again of lamp lighting assembly in the self-locking socket, save power supply, prolong normal service life of large-power lamp with this.

Description of drawings

Fig. 1 is the cut off self-lock circuit theory schematic diagram of large-power lamp of the utility model;

Fig. 2 is the concrete enforcement connection layout of the embodiment 1 described large-power lamp that cuts off self-lock.

The specific embodiment

Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.

Generally speaking, as shown in Figure 1, the utility model high-power circuit principle that cuts off self-lock is as follows: lamp interior is provided with the module and that cuts off self-lock and often drives button (SB); The described module that cuts off self-lock is provided with secondary linked switch (KM1-KM2), and when being in "on" position, can produce magnetic and make the secondary linked switch be in the AC electromagnetic coil of closure state (KM), described secondary linked switch (KM1-KM2) comprises branch switch (KM1) and branch switch (KM2); Wherein, described branch switch (KM1) series connection is controlled the break-make of live wire with this on the live wire of lamp lighting assembly power line; Described often opening formed series arm with AC electromagnetic coil (KM) after button (SB) is in parallel with branch switch (KM2), and this series arm is connected between the live wire and zero line of lamp lighting assembly power line.

Adopting alternating current electromagnetic relay with the described module that cuts off self-lock below is example, and the utility model large-power lamp that cuts off self-lock is done detailed description.

Embodiment 1

As shown in Figure 2, the present embodiment large-power lamp that cuts off self-lock, its inside is provided with alternating current electromagnetic relay, does not have lock press button (SB) and light fixture.

Described alternating current electromagnetic relay inside comprises AC electromagnetic coil and a pair of interlock normally opened contact.Its inner AC electromagnetic coil can be used as AC electromagnetic coil shown in Figure 1 (KM); A pair of interlock normally opened contact promptly works as secondary linked switch (KM1-KM2) shown in Figure 1.

The button of automatic disconnection behind moment connection circuit when described nothing lock press button (SB) is a kind of the click, it is formed in parallel by a current-limiting resistance and a normally opened contact switch (K).

Fig. 2 has also provided the concrete connection layout of the electric heater that cuts off self-lock:

The JQX-13FA/2Z type alternating current electromagnetic relay rated voltage 220V that is adopted in the present embodiment, contact maximum allowed current 10A is because of normally-closed contact not effect in the present embodiment, so cast out (not indicating among the figure).Normally opened contact (KM1) series connection of alternating current electromagnetic relay is received in the live wire of lamp lighting assembly; Receive the live wire and the zero line side of lamp lighting assembly after AC electromagnetic coil (KM) series connection of normally opened contact (KM1) and relay; The terminal 1 and the terminal 5 of cut-in relay after a normally opened contact switch (K) of press button and the resistance R parallel connection, its effect is to form relation in parallel with the normally opened contact (KM2) of relay.

After down circuitry, AC relay coil (KM) loses magnetism, and interlock normally opened contact KM (KM1-KM2) is disconnected under the effect of relay contained spring, so lamp lighting assembly and AC relay coil (KM) all are in off state;

When powering once more, AC relay coil (KM) still opens circuit not can adhesive interlock normally opened contact (KM1-KM2), so interlock normally opened contact (KM1-KM2) still is in off state, because normally opened contact (KM1) is connected in the live wire loop of heater circuit, thereby the lamp lighting assembly can not switch on, thereby realized the function that cuts off self-lock.

When powering once more, the people is for clicking button (SB), and AC electromagnetic coil (KM) loop is connected, and coil produces magnetic, adhesive interlock normally opened contact (KM1-KM2).The interlock normally opened contact (KM1-KM2) of relay is in case by adhesive, and the live wire loop of socket and AC electromagnetic coil (KM) loop all are switched on, and the lamp lighting assembly is in "on" position.

The cut off self-lock innovation part of heater circuit of the utility model is: relay and shift knob element that utilization is ripe, innovative design circuit structure, the function that cuts off self-lock of having accomplished large-power lamp; The circuit module volume that adds is little, simple in structure, easy to make, the cheap large-scale mass production that is easy to of product price.

The foregoing description is the utility model preferred implementation; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.

Claims

1. large-power lamp cuts off self-lock, it is characterized in that: lamp interior is provided with the module and that cuts off self-lock and often opens the described module that cuts off self-lock of button (SB) and be provided with secondary linked switch (KM1-KM2), and when being in "on" position, can produce magnetic and make the secondary linked switch be in the AC electromagnetic coil of closure state (KM), described secondary linked switch (KM1-KM2) comprises branch switch (KM1) and branch switch (KM2); Wherein, described branch switch (KM1) series connection is on the live wire of lamp lighting assembly power line; Described often opening formed series arm with AC electromagnetic coil (KM) after button (SB) is in parallel with branch switch (KM2), and this series arm is connected between the live wire and zero line of lamp lighting assembly power line.

2. the large-power lamp that cuts off self-lock according to claim 1 is characterized in that: the described button (SB) of often opening is not for there being lock band button switch, and it is formed in parallel by a current-limiting resistance and a normally opened contact switch (K).

3. the large-power lamp that cuts off self-lock according to claim 1 and 2, it is characterized in that: the described module that cuts off self-lock is an alternating current electromagnetic relay, this alternating current electromagnetic relay is provided with AC electromagnetic coil and a pair of interlock normally opened contact, wherein AC electromagnetic coil is as AC electromagnetic coil (KM), and described a pair of interlock normally opened contact is promptly as secondary linked switch (KM1-KM2).