CN2141927Y

CN2141927Y - Error prevention alarm device for high- and low-tension switch cabinet

Info

Publication number: CN2141927Y
Application number: CN 92244984
Authority: CN
Inventors: 万家年
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-12-19
Filing date: 1992-12-19
Publication date: 1993-09-08
Anticipated expiration: 2002-12-19

Abstract

The utility model discloses a pyroelectric infrared alarm apparatus, particularly an error prevention alarm device for high-and low-tension switch cabinet, which is characterized in that the device make use of the pyroelectric infrared language alarm device of the non-Fresnel optical system. Simultaneously, the outer housing of the device is provided with a wire connecting terminal. By utilizing the auxiliary contact of the control switch in the switch cabinet, an auxiliary relay and the switch in a matching amplifier to realize the conjoint control of different curing language circuits, the speaker can send alarms which can tell the operation state of the switch cabinet and raise safety awareness toward the person approaching to the cabinet or the operator with the hand stretching out. Therefore, the utility model is a material guarantee for the prevention of 'three errors'.

Description

Error prevention alarm device for high- and low-tension switch cabinet

The utility model relates to a kind of warning device, more particularly relates to a kind of thermal release electric infra-red ray warning device, can be installed on the various device, and especially high and low voltage switch prevents unendorsed operation cashier's office in a shop.

Existing pyroelectricity alarm mainly is made up of Fresnel optical system, Thermoelectric Infrared Sensor, adapter amplifier and buzzer.Usually it is believed that does not have to bring into play not come out once the characteristics of overlapping suitable Fresnel optical system Thermoelectric Infrared Sensor, that is does not have practical value, and its reason is: 1, detection range is too near, has only about 1 meter; 2, horizontal subtended angle is little, if do not consider scattering, the infrared ray that is received almost is parallel light beam; 3, can not only survey the human body target that moves.Therefore, the manufacturers that produce the thermal release electric infra-red ray alarm all propagate as the advantage of own product with extensive angle, long distance, a human body target that detection is moved.But above-mentioned under certain conditions advantage then becomes shortcoming.Such as, high and low voltage electric distribution in the power distribution room is loaded onto existing thermal release electric infra-red ray alarm cashier's office in a shop and is prevented that unendorsed misoperation from then can't reach designer's purpose of design, because in the general power distribution room all is that many cupboards are installed concentratedly together, tour or mirror protect personnel and in a single day enter power distribution room, all cupboards all sound, no matter how you regulate sensitivity, also can't reach to stretch out one's hand and operate or undue close which cabinet, the sub sound that just gives a warning of which cabinet, tell the operating state of this cupboard of operator, perhaps warn him to take care.A kind of " the novel passive type Chinese security alarm device " of " CYBERSPACE " 1992 the 5th phases the 7th page of disclosure also can't satisfy many cabinets and install concentratedly, the requirement that divides cabinet to report to the police.

In view of the above-mentioned deficiency of existing in prior technology, the utility model discloses a kind of low-angle, closely and can send the safety alarm of alarm call, is intended to satisfy many cabinets and installs concentratedly, the needs that divide cabinet to report to the police.

The utility model realizes that the feature of the technical solution of above-mentioned purpose is thermal release electric infra-red ray sensor, adapter amplifier, language circuit and loud speaker to be set constitute in the shell that is provided with exploration hole and binding post.Described Thermoelectric Infrared Sensor is delivered to the language circuit to the human body infrared signal that detects by exploration hole again through the coupling processing and amplifying, and the operating state of master switch just can be introduced by the binding post on the shell and deliver to the language circuit again in the high-low voltage electric power distribution cabinet simultaneously.The working state signal that master switch is different and the synergy of human body infrared signal, can make different language circuit workings, tell the operator operating state of master switch by loud speaker, prevent operator's misoperation under unendorsed situation, perhaps warn him not close excessively.

The utility model has been cast out the employed Fresnel optical system of traditional thermal release electric infra-red ray alarm, on shell, be provided with simultaneously binding post, in the working state signal introducing machine of master switch in the high and low voltage switch cabinet, have only the operator to stretch out one's hand and operate or undue close which cabinet, which cabinet is just told the operator with the operating state of master switch in this cupboard like clockwork, can prevent that the operator from not obtaining that misoperation or mistakenly entering into charged body isolation strip take place under the situation that the relevant personnel allow.Therefore, birth of the present utility model can prevent the generation of " three mistake " accident effectively, for distribution, carry out safety precaution work with electric unit reliable material guarantee is provided.

Below in conjunction with accompanying drawing and possible embodiments the utility model is explained in further detail, the technique effect that makes the public further understand above-mentioned purpose of the present utility model and can reach, but the utility model is not limited by the examples.

Description of drawings

Fig. 1 is the structural representation of a kind of specific embodiments of the utility model.

Fig. 2 is that the A of Fig. 1 is to view.

Fig. 3 is that the B of Fig. 1 is to view.

Fig. 4 is the schematic block circuit diagram of following embodiment 1.

Fig. 5 is the schematic block circuit diagram of following embodiment 2.

Fig. 6 is a kind of concrete user mode schematic diagram of the present utility model.

Embodiment 1

With reference to Fig. 1, Thermoelectric Infrared Sensor (2), adapter amplifier (3), language circuit (4) and loud speaker (5) are set in shell (1) by technique known.See figures.1.and.2, the left and right sides that shell (1) is gone up set exploration hole (8) is provided with protruding rib (12), is beneficial to further reduce horizontal subtended angle.With reference to Fig. 1, Thermoelectric Infrared Sensor (2) is arranged on the center of exploration hole (8), and the inwall of close shell (1).

With reference to Fig. 1, exploration hole (8) is embedded with infrared ray optical filtering (6), and its effect mainly is: 1, further limit the intake of stray light, improve antijamming capability; 2, prevent that foreign matters such as dust, water from entering in the machine; 3, play protective action, protection Thermoelectric Infrared Sensor (2).

With reference to Fig. 1 and Fig. 3, the bottom of shell (1) is provided with binding post (9).Comprise three in the present embodiment in the language circuit (4) altogether and solidified language circuit I, II, III.With reference to Fig. 4, a pile crown of a unit in the trigger end of the curing language circuit I that is solidified with " have electricity Danger! Keep Away " and the binding post (9) is linked to each other, another pile crown of a unit links to each other with the positive pole of DC power supply (11); A pile crown of the b unit in the trigger end of the curing language circuit II that is solidified with " someone works, No switching on " and the binding post (9) is linked to each other, and another pile crown of b unit connects the positive pole of DC power supply (11); The trigger end of the curing language circuit III that is solidified with " taking care; operation meticulously " is linked to each other with a pile crown of d unit in the binding post (9), another pile crown of d unit links to each other with a pile crown of c unit, and another pile crown of c unit is connected with the positive pole of DC power supply (11).With reference to Fig. 4, the switch (10) in the coupling amplifying circuit (3) is connected in the electric power loop that solidifies language circuit I, II, III.

With reference to Fig. 6, the present embodiment anti-error alarm of described high and low voltage switch cabinet (13) is installed in the below of the interior master switch of power distribution cabinet (14) (16), the top of sound insulation lock handle (15), refer again to Fig. 4, neither in operation, nobody links to each other at the normally closed interlock of the auxiliary relay of maintenance again reaction cupboard in a pair of pile crown of a unit in the binding post (9) and the power distribution cabinet (14); The auxiliary normally open contact of the interior master switch of power distribution cabinet (14) (16) is linked to each other with a pair of pile crown of b unit in the terminals (9); The auxiliary normally closed interlock of the normally open contact of above-mentioned auxiliary relay in the power distribution cabinet (14) and master switch (16) is linked to each other with a pair of pile crown of the middle c of binding post (9), d Unit two respectively.So configuration, when master switch (16) and isolation switch handle (15) all close, in case there is the people to enter the isolation strip, excessive near power distribution cabinet, Thermoelectric Infrared Sensor (2) is delivered to adapter amplifier (3) with the human body signal that detects and is amplified, make switch (10) closure, connect the power supply of language circuit (4), solidify the work of language circuit I, loud speaker (5) sends the warning of " having electricity dangerous; please don't be close ", when master switch (16) and isolation switch handle (15) are all left behind, when the someone overhauls, in case have the people excessive near or stretch out one's hand operation master switch (16), solidify language circuit III and promptly work, loud speaker (5) sends the warning of " someone overhauls, No switching on "; When master switch (16) is drawn back, and isolation switch is in closing position, in case have the people excessive near or stretch out one's hand operation master switch (16) and solidify language circuit II and promptly work, loud speaker (5) sends the warning of " taking care, meticulously operation ".

Embodiment 2

With reference to Fig. 5, the switch (10) in the adapter amplifier (3) is connected on and solidifies between language circuit I, II, the positive pole III trigger end and tie-point and DC power supply (11); The a pair of pile crown of a of binding post (9), two unit of b is gone here and there respectively in the electric power loop that solidifies language circuit I, II, solidifies in the electric power loop of language circuit III after the c of binding post (9), the d units in series.

Other enforcement means of present embodiment are identical with example 1.

Claims

1, the anti-error alarm of a kind of high and low voltage switch cabinet is characterized in that being provided with that Thermoelectric Infrared Sensor (2), adapter amplifier (3), language circuit (4) and loud speaker (5) constituted in the shell (1) that is provided with exploration hole (8) and binding post (9).

2, the anti-error alarm of a kind of high and low voltage switch cabinet according to claim 1 is characterized in that shell (1) upward is provided with protruding rib (12) in the both sides of set exploration hole (8); Exploration hole (8) is embedded with infrared ray optical filtering (6).

3, the anti-error alarm of a kind of high and low voltage switch cabinet according to claim 1 and 2, a pair of pile crown string that it is characterized in that binding post (9) is between the positive pole of the trigger end of language circuit (4) and DC power supply (11); Switch (10) string in the adapter amplifier (3) is in the electric power loop of language circuit (4).

4, the anti-error alarm of a kind of high and low voltage switch cabinet according to claim 1 and 2, a pair of pile crown string that it is characterized in that binding post (9) is in the electric power loop of language circuit (4); Switch (10) in the adapter amplifier (3) is gone here and there between the positive pole of the trigger end of language circuit (4) and DC power supply (11).

5, the anti-error alarm of a kind of high and low voltage switch cabinet according to claim 1 and 2 is characterized in that comprising two butted line pile crowns at least in the upward set binding post (9) of shell (1).