Alarm device and alarm system based on relay reaction power supply flash outage

Abstract

The utility model provides an alarm device based on relay reaction power supply flash outage, comprising a sampling circuit, the sampling circuit comprises an intermediate relay KA1, a first breaker QF1 and a second breaker QF1, the intermediate relay KA1 is respectively connected in series with the first breaker QF1 and the second breaker QF1 to form a first loop, and the first loop is externally connected with a sampling power supply; the intermediate circuit comprises an intermediate relay KA11 and a fault indicating lamp, and the intermediate relay KA11 and the normally closed switch of the intermediate relay KA1 are connected in series to form a second loop; and the alarm circuit comprises an alarm and an intermediate relay KA11 normally open switch, the intermediate relay KA11 normally open switch and the alarm are connected in series to form a third loop, and the third loop is externally connected with an independent power supply UPS. According to the utility model, the high-voltage power supply flash condition can be efficiently detected in real time, and the technical effect of protecting medical equipment or other electric equipment is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of high - voltage power supply flash - off, and particularly relates to an alarm device and an alarm system for power supply flash - off and power failure based on relay reaction. Background Technique

[0002] Due to the fluctuation of power quality, there will occasionally be a situation where the voltage of the external power supply line transiently or temporarily drops and then returns to normal within a short time. This situation will cause some medical equipment or other electrical equipment to stop working (such as the contactor coil voltage is insufficient to maintain self - holding, the circuit breaker under - voltage tripping action). Since the voltage drop time is very short, the power consumption of ordinary lighting and power equipment is hardly affected and it is very difficult to detect. However, some medical equipment such as magnetic resonance auxiliary cooling equipment will cause quench if it loses power for a long time, and in severe cases, it will lead to equipment scrapping, causing huge economic losses. Facing this problem, the current solution is to, after receiving the power outage repair information, first eliminate the faults of the electrical equipment itself, then comprehensively compare the affected areas, and then inquire about the power supply situation of the line from the power supply company to judge whether there is an external power fluctuation. The lack of an active alarm device leads to a lag in response time. Obviously, this judgment process is time - consuming and laborious, and the efficiency is extremely low.

[0003] Therefore, how to provide an alarm device for high - voltage power supply flash - off and power failure to efficiently and real - time detect the situation of high - voltage power supply flash - off and protect medical equipment or other electrical equipment is a technical problem that those skilled in the art urgently need to solve. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an alarm device for power supply flash - off and power failure based on relay reaction to solve at least one of the above - mentioned technical problems.

[0005] To solve the above technical problems, the present utility model provides an alarm device based on relay reaction power supply flash interruption power failure. The alarm device includes: a sampling circuit, the sampling circuit includes an intermediate relay KA1, a first circuit breaker QF1, and a second circuit breaker QF1. The intermediate relay KA1 is respectively connected in series with the first circuit breaker QF1 and the second circuit breaker QF1 to form a first loop. The first loop is externally connected to a sampling power supply. The intermediate relay KA1 has a normally closed switch of the intermediate relay KA1; an intermediate circuit, the intermediate circuit includes an intermediate relay KA11 and a fault indicator light. The intermediate relay KA11 is connected in series with the normally closed switch of the intermediate relay KA1 to form a second loop. The second loop is externally connected to an independent power supply UPS. The intermediate relay KA11 has a normally open switch of the intermediate relay KA11. The normally open switch of the intermediate relay KA11 is connected in parallel with the normally closed switch of the intermediate relay KA1. The intermediate relay KA11 is connected in parallel with the fault indicator light HY1; an alarm circuit, the alarm circuit includes an alarm and the normally open switch of the intermediate relay KA11. The normally open switch of the intermediate relay KA11 is connected in series with the alarm to form a third loop. The third loop is externally connected to an independent power supply UPS.

[0006] Optionally, the sampling circuit further includes a power indicator light, and the power indicator light is connected in parallel with the intermediate relay KA1.

[0007] Optionally, the intermediate circuit further includes a first reset knob, and the first reset knob is connected in series with the normally closed switch of the intermediate relay KA1.

[0008] Optionally, the alarm circuit further includes a second reset knob, and the second reset knob is connected in series with the normally open switch of the intermediate relay KA11.

[0009] Optionally, the normally closed switch of the intermediate relay KA1 is located between the first reset knob and the intermediate relay KA11.

[0010] Optionally, the normally open switch of the intermediate relay KA11 is located between the second reset knob and the alarm.

[0011] Optionally, the model of the intermediate relay KA1 is RXM4LB2P7.

[0012] Optionally, the model of the intermediate relay KA11 is RXM4LB2P7.

[0013] Optionally, the alarm is an audible and visual alarm.

[0014] Optionally, there are six sampling circuits as described in the above embodiments. The first loop in each sampling circuit is externally connected to a sampling power supply respectively;

[0015] The first intermediate circuit, the first intermediate circuit includes an intermediate relay KA11(5) and a fault indicator light HY1(7), the intermediate relay KA11(5) is connected in series with the normally closed switch (6) of the intermediate relay KA1 in the first sampling circuit to form a second loop, the second loop is externally connected to an independent power supply UPS, the intermediate relay KA11(5) has a normally open switch of the first intermediate relay KA11 and a normally open switch of the second intermediate relay KA11, the normally open switch of the first intermediate relay KA11 is connected in parallel with the normally closed switch (6) of the intermediate relay KA1, and the intermediate relay KA11(5) is connected in parallel with the fault indicator light HY1(7);

[0016] The second intermediate circuit, the second intermediate circuit includes an intermediate relay KA12 and a fault indicator light HY2, the intermediate relay KA12 is connected in series with the normally closed switch of the intermediate relay KA2 in the second sampling circuit to form a first branch of the second loop, the intermediate relay KA12 has a normally open switch of the first intermediate relay KA12 and a normally open switch of the second intermediate relay KA12, the normally open switch of the first intermediate relay KA12 is connected in parallel with the normally closed switch of the intermediate relay KA2, and the intermediate relay KA12 is connected in parallel with the fault indicator light HY2;

[0017] The third intermediate circuit, the third intermediate circuit includes an intermediate relay KA13 and a fault indicator light HY3, the intermediate relay KA13 is connected in series with the normally closed switch of the intermediate relay KA3 in the third sampling circuit to form a second branch of the second loop, the intermediate relay KA13 has a normally open switch of the first intermediate relay KA13 and a normally open switch of the second intermediate relay KA13, the normally open switch of the first intermediate relay KA13 is connected in parallel with the normally closed switch of the intermediate relay KA3, and the intermediate relay KA13 is connected in parallel with the fault indicator light HY3;

[0018] The fourth intermediate circuit, the fourth intermediate circuit includes an intermediate relay KA14 and a fault indicator light HY4, the intermediate relay KA14 is connected in series with the normally closed switch of the intermediate relay KA4 in the fourth sampling circuit to form a third branch of the second loop, the intermediate relay KA14 has a normally open switch of the first intermediate relay KA14 and a normally open switch of the second intermediate relay KA14, the normally open switch of the first intermediate relay KA14 is connected in parallel with the normally closed switch of the intermediate relay KA4, and the intermediate relay KA14 is connected in parallel with the fault indicator light HY4;

[0019] The fifth intermediate circuit, the fifth intermediate circuit includes an intermediate relay KA15 and a fault indicator light HY5, the intermediate relay KA15 is connected in series with the normally closed switch of the intermediate relay KA5 in the fifth sampling circuit to form the second loop branch four, the intermediate relay KA15 has a first normally open switch of the intermediate relay KA15 and a second normally open switch of the intermediate relay KA15, the first normally open switch of the intermediate relay KA15 is connected in parallel with the normally closed switch of the intermediate relay KA5, and the intermediate relay KA15 is connected in parallel with the fault indicator light HY5;

[0020] The sixth intermediate circuit, the sixth intermediate circuit includes an intermediate relay KA9 and a fault indicator light HY6, the intermediate relay KA9 is connected in series with the normally closed switch of the intermediate relay KA6 in the sixth sampling circuit to form the second loop branch five, the intermediate relay KA9 has a first normally open switch of the intermediate relay KA9 and a second normally open switch of the intermediate relay KA9, the first normally open switch of the intermediate relay KA9 is connected in parallel with the normally closed switch of the intermediate relay KA6, and the intermediate relay KA9 is connected in parallel with the fault indicator light HY6;

[0021] The first alarm circuit, the first alarm circuit includes an alarm (9) and a reset knob (11), the second normally open switch of the intermediate relay KA11, the alarm (9) and the reset knob (11) are connected in series to form the third loop, and the third loop is externally connected to an independent power supply UPS.

[0022] The second alarm circuit, the second alarm circuit is provided with the second normally open switch of the intermediate relay KA12, and the second normally open switch of the intermediate relay KA12 is connected in parallel with the second normally open switch of the intermediate relay KA11.

[0023] The third alarm circuit, the third alarm circuit is provided with the second normally open switch of the intermediate relay KA13, and the second normally open switch of the intermediate relay KA13 is connected in parallel with the second normally open switch of the intermediate relay KA12.

[0024] The fourth alarm circuit, the fourth alarm circuit is provided with the second normally open switch of the intermediate relay KA14, and the second normally open switch of the intermediate relay KA14 is connected in parallel with the normally open switch of the intermediate relay KA13.

[0025] The fifth alarm circuit, the fifth alarm circuit is provided with the second normally open switch of the intermediate relay KA15, and the second normally open switch of the intermediate relay KA15 is connected in parallel with the normally open switch of the intermediate relay KA14.

[0026] The sixth alarm circuit, in which a normally open switch of a second intermediate relay KA9 is provided in the fourth alarm circuit, and the normally open switch of the second intermediate relay KA9 is connected in parallel with the normally open switch of the intermediate relay KA15.

[0027] Advantageous effects:

[0028] The alarm device based on relay reaction to power supply flash interruption provided by the present application, by setting a sampling circuit, an intermediate circuit and an alarm circuit, enables the circuit to perform fault indication warning of the intermediate circuit and sound and light alarm response of the alarm circuit when the sampling power supply has transient or temporary voltage loss until someone resets; by connecting the intermediate relay KA11 in series with the normally closed switch of the intermediate relay KA1 to form a second loop, the power-on situation of the intermediate relay KA11 is controlled by the normally closed switch of the intermediate relay KA1. When the normally closed switch of the intermediate relay KA1 is closed, the intermediate relay KA11 is powered on. When the normally closed switch of the intermediate relay KA1 is opened, the intermediate relay KA11 loses power. The second loop is externally connected to an independent power supply UPS. The intermediate relay KA11 has a normally open switch of the intermediate relay KA11, so that the intermediate relay KA11 controls the opening or closing of the normally open switch of the intermediate relay KA11. When the intermediate relay KA11 is powered on, the normally open switch of the intermediate relay KA11 is closed. When the intermediate relay KA11 loses power, the normally open switch of the intermediate relay KA11 is opened. The normally open switch of the intermediate relay KA11 is connected in parallel with the normally closed switch of the intermediate relay KA1. The intermediate relay KA11 is connected in parallel with the fault indicator light, so that when the normally open switch of the intermediate relay KA11 is closed, the fault indicator light is lit. When the normally open point of the intermediate relay KA11 is opened, the fault indicator light goes out; in the alarm circuit, the normally open switch of the intermediate relay KA11 is connected in series with the alarm to form a third loop. The third loop is externally connected to an independent power supply UPS, so that when the normally open switch of the intermediate relay KA11 is closed, the alarm responds and starts to alarm. The utility model can realize efficient and real-time detection of the situation of high-voltage power supply flash interruption, and achieve the technical effect of protecting medical equipment or other electrical equipment.

[0029] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, the following specifically illustrates the specific embodiments of the present invention. Description of the drawings

[0030] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0031] Figure 1 Schematic diagram of the alarm device provided by the embodiment of the present application;

[0032] Figure 2 Schematic diagram of the alarm system provided by the embodiment of the present application;

[0033] Figure 3 Partial schematic diagram of multiple sampling circuits in the alarm system provided by the embodiment of the present application;

[0034] Figure 4 Partial schematic diagram of multiple intermediate circuits in the alarm system provided by the embodiment of the present application;

[0035] Figure 5 Partial schematic diagram of multiple alarm circuits in the alarm system provided by the embodiment of the present application;

[0036] Reference numerals:

[0037] 1 - Intermediate relay KA1;

[0038] 2 - Power indicator HR1;

[0039] 3 - Circuit breaker QF1;

[0040] 31 - First circuit breaker;

[0041] 32 - Second circuit breaker;

[0042] 4 - Circuit breaker QF10;

[0043] 5 - Intermediate relay KA11;

[0044] 6 - Normally closed switch of intermediate relay KA1;

[0045] 7 - Fault indicator HY1;

[0046] 8 - Circuit breaker QF10;

[0047] 9 - Acousto-optic alarm;

[0048] 10 - First reset knob;

[0049] 11 - Second reset knob; Detailed implementation manners

[0050] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0051] In the present invention, unless otherwise clearly defined and limited, terms such as "connection" should be understood in a broad sense. For example, it can be a connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0052] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0053] Embodiment 1

[0054] Please refer to Figure 1 , this embodiment provides an alarm device based on relay reaction power supply flash-off power failure. The alarm device includes: a sampling circuit, the sampling circuit includes an intermediate relay KA1, a first circuit breaker QF1, and a second circuit breaker QF1. The intermediate relay KA1 is respectively connected in series with the first circuit breaker QF1 and the second circuit breaker QF1 to form a first loop. The first loop is externally connected to a sampling power supply, and the intermediate relay KA1 has a normally closed switch of the intermediate relay KA1; an intermediate circuit, the intermediate circuit includes an intermediate relay KA11 and a fault indicator light HY1. The intermediate relay KA11 is connected in series with the normally closed switch of the intermediate relay KA1 to form a second loop. The second loop is externally connected to an independent power supply UPS. The intermediate relay KA11 has a normally open switch of the intermediate relay KA11. The normally open switch of the intermediate relay KA11 is connected in parallel with the normally closed switch of the intermediate relay KA1. The intermediate relay KA11 is connected in parallel with the fault indicator light HY1; an alarm circuit, the alarm circuit includes an alarm and the normally open switch of the intermediate relay KA11. The normally open switch of the intermediate relay KA11 is connected in series with the alarm to form a third loop. The third loop is externally connected to an independent power supply UPS.

[0055] Specifically, by setting up a sampling circuit, an intermediate circuit, and an alarm circuit, the circuit can give a fault indication warning for the intermediate circuit and an audible and visual alarm response for the alarm circuit when a transient or momentary voltage loss occurs in the sampling power supply until someone resets it; a second loop is formed by connecting the normally closed switch of the intermediate relay KA11 in series with the normally closed switch of the intermediate relay KA1, so that the energization of the intermediate relay KA11 is controlled by the normally closed switch of the intermediate relay KA1. When the normally closed switch of the intermediate relay KA1 is closed, the intermediate relay KA11 is energized. When the normally closed switch of the intermediate relay KA1 is opened, the intermediate relay KA11 loses power. The second loop is externally connected to an independent power supply UPS. The intermediate relay KA11 has a normally open switch of the intermediate relay KA11, so that the intermediate relay KA11 controls the opening or closing of the normally open switch of the intermediate relay KA11. When the intermediate relay KA11 is energized, the normally open switch of the intermediate relay KA11 is closed. When the intermediate relay KA11 loses power, the normally open switch of the intermediate relay KA11 is opened. The normally open switch of the intermediate relay KA11 is connected in parallel with the normally closed switch of the intermediate relay KA1, and the intermediate relay KA11 is connected in parallel with the fault indicator light, so that when the normally open switch of the intermediate relay KA11 is closed, the fault indicator light is lit. When the normally open point of the intermediate relay KA11 is opened, the fault indicator light goes out; in the alarm circuit, the normally open switch of the intermediate relay KA11 is connected in series with the alarm to form a third loop. The third loop is externally connected to an independent power supply UPS, so that when the normally open switch of the intermediate relay KA11 is closed, the alarm responds and starts to alarm. The utility model can achieve efficient and real-time detection of the flash interruption of high-voltage power supply, and achieve the technical effect of protecting medical equipment or other electrical equipment.

[0056] As a feasible implementation manner, the sampling circuit further includes a power indicator light, and the power indicator light is connected in parallel with the intermediate relay KA1.

[0057] Specifically, installing the power indicator light in this application can play a role in prompting that the circuit enters the working state and the voltage is normal.

[0058] As a feasible implementation manner, the intermediate circuit further includes a first reset knob, and the first reset knob is connected in series with the normally closed switch of the intermediate relay KA1.

[0059] Specifically, installing the first reset knob in this application can achieve that when the staff discovers the alarm warning situation, the circuit can be reset through the reset knob to restore the normally closed switch of the intermediate relay KA1 to be closed and the normally open switch of the first intermediate relay KA11 to be opened, and the fault indicator light HY1 goes out.

[0060] As a feasible implementation manner, the alarm circuit further includes a second reset knob, and the second reset knob is connected in series with the normally open switch of the intermediate relay KA11.

[0061] Specifically, by installing the second reset knob in this application, when the staff discovers the alarm warning situation, the circuit can be reset through the reset knob to achieve the effect of restoring the normally open switch of the second intermediate relay KA11 to open and the sound and light alarm ER10 to go out.

[0062] As a feasible implementation manner, the normally closed switch of the intermediate relay KA1 is located between the first reset knob and the intermediate relay KA11.

[0063] Specifically, in this application, the normally closed switch of the intermediate relay KA1 is located between the first reset knob and the intermediate relay KA11, so that each branch is connected in series with the first reset knob to achieve the effect of resetting the fault indicator lights HY1, HY2, HY3, HY4, HY5, HY6 and resetting all branches.

[0064] As a feasible implementation manner, the normally open switch of the intermediate relay KA11 is located between the second reset knob and the alarm.

[0065] Specifically, in this application, the normally open switch of the intermediate relay KA11 is located between the second reset knob and the alarm. This enables each branch to be connected in series with the second reset knob to achieve the effect of resetting the sound and light alarm and resetting all branches.

[0066] As a feasible implementation manner, the model of the intermediate relay KA1 is RXM4LB2P7. The model of the intermediate relay KA11 is RXM4LB2P7.

[0067] As a feasible implementation manner, the alarm is a sound and light alarm.

[0068] Specifically, the sound and light alarm can achieve the dual warning effect of sound and light simultaneously.

[0069] Embodiment 2

[0070] Please refer to Figures 2 - 4 , on the basis of the above Embodiment 1, this Embodiment 2 further provides an alarm system based on the relay reaction to power supply flash interruption and power failure. The alarm system includes: six sampling circuits as described in Embodiment 1, and a sampling power supply is externally connected to the first loop in each sampling circuit;

[0071] The first intermediate circuit, the first intermediate circuit includes an intermediate relay KA11 and a fault indicator light HY1. The intermediate relay KA11 is connected in series with the normally closed switch of the intermediate relay KA1 in the first sampling circuit to form a second loop. The second loop is externally connected to an independent power supply UPS. The intermediate relay KA11 has a normally open switch of the first intermediate relay KA11 and a normally open switch of the second intermediate relay KA11. The normally open switch of the first intermediate relay KA11 is connected in parallel with the normally closed switch of the intermediate relay KA1. The intermediate relay KA11 is connected in parallel with the fault indicator light HY1;

[0072] The second intermediate circuit, the second intermediate circuit includes an intermediate relay KA12 and a fault indicator light HY2. The intermediate relay KA12 is connected in series with the normally closed switch of the intermediate relay KA2 in the second sampling circuit to form a first branch of the second loop. The intermediate relay KA12 has a normally open switch of the first intermediate relay KA12 and a normally open switch of the second intermediate relay KA12. The normally open switch of the first intermediate relay KA12 is connected in parallel with the normally closed switch of the intermediate relay KA2. The intermediate relay KA12 is connected in parallel with the fault indicator light HY2;

[0073] The third intermediate circuit, the third intermediate circuit includes an intermediate relay KA13 and a fault indicator light HY3. The intermediate relay KA13 is connected in series with the normally closed switch of the intermediate relay KA3 in the third sampling circuit to form a second branch of the second loop. The intermediate relay KA13 has a normally open switch of the first intermediate relay KA13 and a normally open switch of the second intermediate relay KA13. The normally open switch of the first intermediate relay KA13 is connected in parallel with the normally closed switch of the intermediate relay KA3. The intermediate relay KA13 is connected in parallel with the fault indicator light HY3;

[0074] The fourth intermediate circuit, the fourth intermediate circuit includes an intermediate relay KA14 and a fault indicator light HY4. The intermediate relay KA14 is connected in series with the normally closed switch of the intermediate relay KA4 in the fourth sampling circuit to form a third branch of the second loop. The intermediate relay KA14 has a normally open switch of the first intermediate relay KA14 and a normally open switch of the second intermediate relay KA14. The normally open switch of the first intermediate relay KA14 is connected in parallel with the normally closed switch of the intermediate relay KA4. The intermediate relay KA14 is connected in parallel with the fault indicator light HY4;

[0075] The fifth intermediate circuit, the fifth intermediate circuit includes an intermediate relay KA15 and a fault indicator light HY5. The intermediate relay KA15 is connected in series with the normally closed switch of the intermediate relay KA5 in the fifth sampling circuit to form the fourth branch of the second loop. The intermediate relay KA15 has a normally open switch of the first intermediate relay KA15 and a normally open switch of the second intermediate relay KA15. The normally open switch of the first intermediate relay KA15 is connected in parallel with the normally closed switch of the intermediate relay KA5. The intermediate relay KA15 is connected in parallel with the fault indicator light HY5;

[0076] The sixth intermediate circuit, the sixth intermediate circuit includes an intermediate relay KA9 and a fault indicator light HY6. The intermediate relay KA9 is connected in series with the normally closed switch of the intermediate relay KA6 in the sixth sampling circuit to form the fifth branch of the second loop. The intermediate relay KA9 has a normally open switch of the first intermediate relay KA9 and a normally open switch of the second intermediate relay KA9. The normally open switch of the first intermediate relay KA9 is connected in parallel with the normally closed switch of the intermediate relay KA6. The intermediate relay KA9 is connected in parallel with the fault indicator light HY6;

[0077] The first alarm circuit, the first alarm circuit includes an alarm and a reset knob. The normally open switch of the second intermediate relay KA11, the alarm and the reset knob are connected in series to form the third loop. The third loop is externally connected to an independent power supply UPS.

[0078] The second alarm circuit, the normally open switch of the second intermediate relay KA12 is provided in the second alarm circuit. The normally open switch of the second intermediate relay KA12 is connected in parallel with the normally open switch of the second intermediate relay KA11.

[0079] The third alarm circuit, the normally open switch of the second intermediate relay KA13 is provided in the third alarm circuit. The normally open switch of the second intermediate relay KA13 is connected in parallel with the normally open switch of the second intermediate relay KA12.

[0080] The fourth alarm circuit, the normally open switch of the second intermediate relay KA14 is provided in the fourth alarm circuit. The normally open switch of the second intermediate relay KA14 is connected in parallel with the normally open switch of the intermediate relay KA13.

[0081] The fifth alarm circuit, the normally open switch of the second intermediate relay KA15 is provided in the fifth alarm circuit. The normally open switch of the second intermediate relay KA15 is connected in parallel with the normally open switch of the intermediate relay KA14.

[0082] The sixth alarm circuit, the fourth alarm circuit is provided with a second intermediate relay KA9 normally open switch, and the second intermediate relay KA9 normally open switch is connected in parallel with the intermediate relay KA15 normally open switch.

[0083] Specifically, in the embodiment of the utility model, a system can be formed by six sampling power supplies. When any sampling power supply has a transient or temporary voltage loss, the normally closed switch of the corresponding intermediate relay changes from an open state to a closed state, so that the intermediate relay in the corresponding intermediate circuit is energized, which controls the normally open switch of the intermediate relay in the intermediate circuit to close, and the corresponding fault indicator light is turned on. The normally open switch of the intermediate relay in the corresponding alarm circuit is closed to control the sound and light alarm to start the alarm. Since the intermediate relay in the intermediate circuit is self-holding, the normally open switch of the corresponding intermediate relay is continuously closed, the fault indicator light is continuously lit, and the sound and light alarm continues to alarm until the staff manually resets it to close the normally closed switch of the intermediate relay in the intermediate circuit and open the normally open switch of the intermediate relay.

[0084] In summary, the utility model provides an alarm device and an alarm system based on relay reaction power supply flash failure, which have the following beneficial effects:

[0085] 1. This application can simulate the working conditions of the contactor and the undervoltage release coil through the pull-in condition of the relay, thereby reflecting the impact on the terminal electrical equipment.

[0086] 2. It can alarm immediately when an abnormality occurs, shorten the reaction and judgment time, reduce the inspection scope, and solve problems encountered in work at a low cost.

[0087] 3. Most of the terminal equipment rooms are unattended, so it is often difficult to detect power outages at night or on holidays. This device is installed in a 24-hour manned distribution room. It can detect short-term interruptions in external power supply through relays and notify the power-consuming department to check the equipment as soon as possible to avoid unnecessary losses.

[0088] 4. The structural principle is simple, the cost is low, and the maintenance is convenient.

[0089] Finally, it should be noted that the above embodiments are only specific embodiments of the present invention, used to illustrate the technical solutions of the present invention, rather than limiting it. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that any person skilled in the art within the technical scope disclosed by the present invention can still modify the technical solutions recorded in the foregoing embodiments, or can easily conceive of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. All should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

[0090] Although the embodiments of the present invention have been disclosed as above, it is not limited to only the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the examples shown and described herein.

Claims

1. An alarm device based on relay response power supply flash failure, characterized in that: The alarm device comprises: A sampling circuit, the sampling circuit comprising an intermediate relay KA1 (1), a first circuit breaker QF1 (31) and a second circuit breaker QF1 (32), the intermediate relay KA1 (1) being connected in series with the first circuit breaker QF1 (31) and the second circuit breaker QF1 (32) to form a first circuit, the first circuit being externally connected to a sampling power supply, the intermediate relay KA1 (1) having an intermediate relay KA1 normally closed switch (6); An intermediate circuit, the intermediate circuit comprising an intermediate relay KA11 (5) and a fault indicator light HY1 (7), the intermediate relay KA11 (5) being connected in series with the normally closed switch of the intermediate relay KA1 (1) to form a second circuit, the second circuit being externally connected to an independent power supply UPS, the intermediate relay KA11 (5) having an intermediate relay KA11 normally open switch, the intermediate relay KA11 normally open switch being connected in parallel with the intermediate relay KA1 normally closed switch (6), and the intermediate relay KA11 (5) being connected in parallel with the fault indicator light HY1 (7); An alarm circuit comprises an alarm (9) and an intermediate relay KA11 normally open switch, wherein the intermediate relay KA11 normally open switch is connected in series with the alarm (9) to form a third circuit, and the third circuit is externally connected to an independent power supply UPS.

2. The alarm device based on relay-reacted power supply flashover and power failure according to claim 1 is characterized in that: The sampling circuit further comprises a power indicator light (2), wherein the power indicator light (2) is connected in parallel with the intermediate relay KA1 (1).

3. The alarm device based on relay-reacted power supply flashover and power failure according to claim 2 is characterized in that: The intermediate circuit further comprises a first reset knob (10), wherein the first reset knob (10) is connected in series with the normally closed switch (6) of the intermediate relay KA1.

4. The alarm device based on relay-reacted power supply flashover and power failure according to claim 3 is characterized in that: The alarm circuit further comprises a second reset knob (11), wherein the second reset knob (11) is connected in series with the normally open switch of the intermediate relay KA11.

5. The alarm device based on relay-reacted power supply flashover and power failure according to claim 3 is characterized in that: The normally closed switch (6) of the intermediate relay KA1 is located between the first reset knob (10) and the intermediate relay KA11 (5).

6. The alarm device based on relay-reacted power supply flashover and power failure according to claim 4 is characterized in that: The normally open switch of the intermediate relay KA11 is located between the second reset knob (11) and the alarm (9).

7. The alarm device based on relay-reacted power supply flashover and power failure according to any one of claims 1 to 6, characterized in that: The model of the intermediate relay KA1 (1) is RXM4LB2P7.

8. The alarm device based on relay reaction power supply flash failure and power outage according to any one of claims 1 to 6, characterized in that: The model of the intermediate relay KA11 (5) is RXM4LB2P7.

9. The alarm device based on relay-reacted power supply flashover and power failure according to claim 7 is characterized in that: The alarm is an audible and visual alarm (9).

10. An alarm system, characterized in that: include: Six sampling circuits as claimed in claim 1, wherein the first loop in each of the sampling circuits corresponds to an external sampling power supply; A first intermediate circuit, the first intermediate circuit comprising an intermediate relay KA11 (5) and a fault indicator light HY1 (7), the intermediate relay KA11 (5) being connected in series with the intermediate relay KA1 normally closed switch (6) in the first sampling circuit to form a second circuit, the second circuit being externally connected to an independent power supply UPS, the intermediate relay KA11 (5) comprising a first intermediate relay KA11 normally open switch and a second intermediate relay KA11 normally open switch, the first intermediate relay KA11 normally open switch being connected in parallel with the intermediate relay KA1 normally closed switch (6), the intermediate relay KA11 (5) being connected in parallel with the fault indicator light HY1 (7); A second intermediate circuit, the second intermediate circuit comprising an intermediate relay KA12 and a fault indicator light HY2, the intermediate relay KA12 is connected in series with the normally closed switch of the intermediate relay KA2 in the second sampling circuit to form a second circuit branch 1, the intermediate relay KA12 has a first intermediate relay KA12 normally open switch and a second intermediate relay KA12 normally open switch, the first intermediate relay KA12 normally open switch is connected in parallel with the normally closed switch of the intermediate relay KA2, and the intermediate relay KA12 is connected in parallel with the fault indicator light HY2; A third intermediate circuit, the third intermediate circuit comprises an intermediate relay KA13 and a fault indicator light HY3, the intermediate relay KA13 is connected in series with the normally closed switch of the intermediate relay KA3 in the third sampling circuit to form a second loop branch 2, the intermediate relay KA13 has a first intermediate relay KA13 normally open switch and a second intermediate relay KA13 normally open switch, the first intermediate relay KA13 normally open switch is connected in parallel with the normally closed switch of the intermediate relay KA3, and the intermediate relay KA13 is connected in parallel with the fault indicator light HY3; A fourth intermediate circuit, the fourth intermediate circuit comprises an intermediate relay KA14 and a fault indicator light HY4, the intermediate relay KA14 is connected in series with the normally closed switch of the intermediate relay KA4 in the fourth sampling circuit to form a second circuit branch three, the intermediate relay KA14 has a first intermediate relay KA14 normally open switch and a second intermediate relay KA14 normally open switch, the first intermediate relay KA14 normally open switch is connected in parallel with the normally closed switch of the intermediate relay KA4, and the intermediate relay KA14 is connected in parallel with the fault indicator light HY4; A fifth intermediate circuit, the fifth intermediate circuit comprising an intermediate relay KA15 and a fault indicator light HY5, the intermediate relay KA15 being connected in series with the normally closed switch of the intermediate relay KA5 in the fifth sampling circuit to form a second circuit branch four, the intermediate relay KA15 having a first intermediate relay KA15 normally open switch and a second intermediate relay KA15 normally open switch, the first intermediate relay KA15 normally open switch being connected in parallel with the normally closed switch of the intermediate relay KA5, and the intermediate relay KA15 being connected in parallel with the fault indicator light HY5; A sixth intermediate circuit, the sixth intermediate circuit comprising an intermediate relay KA9 and a fault indicator light HY6, the intermediate relay KA9 being connected in series with the normally closed switch of the intermediate relay KA6 in the sixth sampling circuit to form a second circuit branch five, the intermediate relay KA9 having a first intermediate relay KA9 normally open switch and a second intermediate relay KA9 normally open switch, the first intermediate relay KA9 normally open switch being connected in parallel with the normally closed switch of the intermediate relay KA6, and the intermediate relay KA9 being connected in parallel with the fault indicator light HY6; A first alarm circuit, the first alarm circuit comprising an alarm (9) and a reset knob (11), the second intermediate relay KA11 being a normally open switch, the alarm (9) and the reset knob (11) being connected in series to form a third circuit, the third circuit being externally connected to an independent power supply UPS; a second alarm circuit, wherein the second alarm circuit is provided with the second intermediate relay KA12 normally open switch, and the second intermediate relay KA12 normally open switch is connected in parallel with the second intermediate relay KA11 normally open switch; A third alarm circuit, wherein a second intermediate relay KA13 normally-open switch is provided in the third alarm circuit, and the second intermediate relay KA13 normally-open switch is connected in parallel with the second intermediate relay KA12 normally-open switch; A fourth alarm circuit, wherein a second intermediate relay KA14 normally open switch is provided in the fourth alarm circuit, and the second intermediate relay KA14 normally open switch is connected in parallel with the intermediate relay KA13 normally open switch; A fifth alarm circuit, wherein a second intermediate relay KA15 normally open switch is provided in the fifth alarm circuit, and the second intermediate relay KA15 normally open switch is connected in parallel with the intermediate relay KA14 normally open switch; The sixth alarm circuit, the fourth alarm circuit is provided with a second intermediate relay KA9 normally open switch, and the second intermediate relay KA9 normally open switch is connected in parallel with the intermediate relay KA15 normally open switch.

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