Multi-stage early warning and protection system suitable for industrial and commercial energy storage cabinet

Abstract

The utility model discloses a kind of multi-stage early warning and protection system suitable for industrial and commercial energy storage cabinet, including energy storage cabinet, and energy storage cabinet is equipped with multi-stage early warning protection system, the multi-stage early warning protection system includes early warning system and protection system, the early warning system includes first normally open temperature control switch and buzzer, when the temperature in energy storage cabinet is higher than the closure temperature of first normally open temperature control switch, first normally open temperature control switch closes, and buzzer sends light flicker and alarm sound;The protection system includes second normally open temperature control switch, intermediate relay and ac circuit breaker, when the temperature in energy storage cabinet is higher than the closure temperature of second normally open temperature control switch, second normally open temperature control switch closes, makes the coil of intermediate relay energized, to make ac circuit breaker circuit break, reach the ac power supply of main circuit in energy storage cabinet is cut off.

Description

Technical Field

[0001] This patent application relates to the field of energy storage early warning and protection technology, and in particular to a multi-level early warning and protection system suitable for industrial and commercial energy storage cabinets. Background Technology

[0002] Commercial and industrial energy storage cabinets are typically outdoor units, placed for outdoor use. In the high temperatures of summer, the internal temperature of these cabinets rises sharply. Currently, over-temperature protection in commercial and industrial energy storage cabinets mainly resides within the energy storage converter. When the temperature detected by the converter exceeds a certain value, the converter reduces its power output. However, the cabinet itself lacks over-temperature warning and protection mechanisms. This means that when the cabinet temperature exceeds a certain threshold, the cabinet itself cannot issue a warning or provide protection; the entire system relies on the converter's protection. Furthermore, when electrical components inside the cabinet or the surrounding environment overheat and catch fire, the cabinet's fire suppression system cannot activate immediately to protect its own circuitry due to the lack of its own over-temperature warning and protection system. Therefore, we propose a multi-level warning and protection system suitable for commercial and industrial energy storage cabinets. Utility Model Content

[0003] In view of the shortcomings of the prior art described above, the purpose of this patent application is to provide a multi-level early warning and protection system for industrial and commercial energy storage cabinets, thereby solving the problems of the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A multi-level early warning and protection system for industrial and commercial energy storage cabinets includes an energy storage cabinet, within which a multi-level early warning and protection system is installed. The multi-level early warning and protection system includes:

[0006] The early warning system includes a first normally open temperature control switch and a buzzer. When the temperature inside the energy storage cabinet is higher than the closing temperature of the first normally open temperature control switch, the first normally open temperature control switch closes, and the buzzer emits a flashing light and an alarm sound.

[0007] The protection system includes a second normally open temperature control switch, an intermediate relay, and an AC circuit breaker. When the temperature inside the energy storage cabinet is higher than the closing temperature of the second normally open temperature control switch, the second normally open temperature control switch closes, energizing the coil of the intermediate relay, thereby causing the AC circuit breaker to trip and cut off the AC power supply to the main circuit in the energy storage cabinet.

[0008] Furthermore, one end of the first normally open temperature control switch is connected to the phase line of the 220V AC power supply inside the energy storage cabinet, and the other end is connected to one pin of the buzzer. The other pin of the buzzer is connected to the neutral line of the 220V AC power supply inside the energy storage cabinet.

[0009] Furthermore, the closing temperature of the first normally open temperature control switch is 55°C.

[0010] Furthermore, one end of the second normally open temperature control switch is connected to the phase line of the 220V AC power supply inside the energy storage cabinet, and the other end is connected to pin A of the intermediate relay. Pin B of the intermediate relay is connected to the neutral line of the 220V AC power supply inside the energy storage cabinet, pin C of the intermediate relay is connected to the phase line of the 220V AC power supply inside the energy storage cabinet, pin D of the intermediate relay is connected to terminal A1 of the trip coil of the AC circuit breaker, and terminal A2 of the trip coil of the AC circuit breaker is connected to the neutral line of the 220V AC power supply inside the energy storage cabinet.

[0011] Furthermore, pins A and B of the intermediate relay are pins at both ends of the internal coil of the intermediate relay, and pins C and D of the intermediate relay are pins at both ends of the normally open contacts inside the intermediate relay.

[0012] Furthermore, the closing temperature of the second normally open temperature control switch is 65°C.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This is applicable to a multi-level early warning and protection system for industrial and commercial energy storage cabinets. When the temperature inside the energy storage cabinet reaches 55℃, the first normally open temperature control switch closes, and the buzzer emits a red flashing light and an alarm sound to alert the outside world and users; when the temperature inside the energy storage cabinet reaches 65℃, the second normally open temperature control switch closes, the intermediate relay coil is energized, and the AC circuit breaker is energized to disconnect the AC power supply to the main circuit of the energy storage cabinet, ensuring the safety of the equipment and the outside world. Attached Figure Description

[0014] Figure 1 This is a circuit diagram of the multi-level early warning and protection system of this utility model.

[0015] The reference numerals are as follows: 100 for the early warning system, 110 for the first normally open temperature control switch, 120 for the buzzer, 200 for the protection system, 210 for the second normally open temperature control switch, 220 for the intermediate relay, and 230 for the AC circuit breaker. Detailed Implementation

[0016] The following specific examples illustrate the implementation of this patent application. Those skilled in the art can easily understand other advantages and effects of this patent application from the content disclosed in this specification. This patent application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this patent application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0017] Please see Figure 1 This utility model provides a technical solution:

[0018] A multi-level early warning and protection system for industrial and commercial energy storage cabinets includes an energy storage cabinet with a multi-level early warning and protection system inside. The multi-level early warning and protection system includes an early warning system 100 and a protection system 200, both located inside the energy storage cabinet. The early warning system 100 includes a first normally open temperature control switch 110 and a buzzer 120. One end of the first normally open temperature control switch 110 is connected to the phase line of the 220V AC power supply inside the energy storage cabinet, and the other end is connected to one pin of the buzzer 120. The other pin of the buzzer 120 is connected to the neutral line of the 220V AC power supply inside the energy storage cabinet. When the temperature inside the energy storage cabinet is higher than the closing temperature of the first normally open temperature control switch 110, the first normally open temperature control switch 110 closes, and the buzzer 120 emits a flashing light and an alarm sound. Specifically, the closing temperature of the first normally open temperature control switch 110 is 55°C.

[0019] The protection system 200 includes a second normally open temperature control switch 210, an intermediate relay 220, and an AC circuit breaker 230. One end of the second normally open temperature control switch 210 is connected to the phase line of the 220V AC power supply inside the energy storage cabinet, and the other end is connected to pin A of the intermediate relay 220. Pin B of the intermediate relay 220 is connected to the neutral line of the 220V AC power supply inside the energy storage cabinet, pin C of the intermediate relay 220 is connected to the phase line of the 220V AC power supply inside the energy storage cabinet, and pin D of the intermediate relay 220 is connected to the AC... The A1 terminal of the trip coil of circuit breaker 230 is connected, and the A2 terminal of the trip coil of AC circuit breaker 230 is connected to the neutral wire of the 220V AC power supply in the energy storage cabinet. When the temperature inside the energy storage cabinet is higher than the closing temperature of the second normally open temperature control switch 210, the second normally open temperature control switch 210 closes, energizing the coil of intermediate relay 220, thereby causing AC circuit breaker 230 to open, thus cutting off the AC power supply of the main circuit in the energy storage cabinet. Specifically, the closing temperature of the second normally open temperature control switch 210 is 65℃.

[0020] In some examples, such as Figure 1 As shown, pin A of intermediate relay 220 is labeled as pin 14, pin B as pin 13, pin C as pin 12, and pin D as pin 8. When the temperature inside the energy storage cabinet is higher than 65℃, the second normally open temperature control switch 210 closes, energizing the coil of intermediate relay 220. Pins 12 and 8 change from normally open to closed, and the trip coil on AC circuit breaker 230 is energized and tripped, thereby cutting off the AC power supply to the main circuit in the energy storage cabinet.

[0021] It should be noted that pins A and B of intermediate relay 220 are the pins at both ends of the internal coil of intermediate relay 220, and pins C and D of intermediate relay 220 are the pins at both ends of the normally open contact inside intermediate relay 220.

[0022] When the temperature inside the energy storage cabinet reaches 55℃, the first normally open temperature control switch 110 closes, and the buzzer 120 emits a flashing red light and an alarm sound to alert the outside world and users; when the temperature inside the energy storage cabinet reaches 65℃, the second normally open temperature control switch 210 closes, the coil of the intermediate relay 220 is energized, and the AC circuit breaker 230 is energized to disconnect the AC power supply to the main circuit of the energy storage cabinet, ensuring the safety of the equipment and the outside world.

[0023] In this embodiment, both the first normally open temperature control switch 110 and the second normally open temperature control switch 210 are KSD9700 model normally open temperature control switches, the only difference between them is the closing temperature. The buzzer 120 is an ND16-22FSLED model buzzer, the intermediate relay 220 is an HF18FZ / AC220-2Z232 model intermediate relay, and the AC circuit breaker 230 is a ZN63A model circuit breaker.

[0024] The above embodiments are merely illustrative of the principles and effects of this patent application and are not intended to limit this patent application. Any person skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this patent application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this patent application shall still be covered by the claims of this patent application.

Claims

1. A multi-level early warning and protection system for industrial and commercial energy storage cabinets, comprising an energy storage cabinet, wherein the energy storage cabinet is equipped with a multi-level early warning and protection system, characterized in that, The multi-level early warning and protection system includes: The warning system (100) includes a first normally open temperature control switch (110) and a buzzer (120). When the temperature inside the energy storage cabinet is higher than the closing temperature of the first normally open temperature control switch (110), the first normally open temperature control switch (110) closes, and the buzzer (120) emits a flashing light and an alarm sound. The protection system (200) includes a second normally open temperature control switch (210), an intermediate relay (220), and an AC circuit breaker (230). When the temperature inside the energy storage cabinet is higher than the closing temperature of the second normally open temperature control switch (210), the second normally open temperature control switch (210) closes, energizing the coil of the intermediate relay (220), thereby causing the AC circuit breaker (230) to trip, thus cutting off the AC power supply to the main circuit in the energy storage cabinet.

2. The multi-level early warning and protection system for industrial and commercial energy storage cabinets according to claim 1, characterized in that, One end of the first normally open temperature control switch (110) is connected to the phase line of the 220V AC power in the energy storage cabinet, and the other end is connected to one pin of the buzzer (120). The other pin of the buzzer (120) is connected to the neutral line of the 220V AC power in the energy storage cabinet.

3. The multi-level early warning and protection system for industrial and commercial energy storage cabinets according to claim 2, characterized in that, The closing temperature of the first normally open temperature control switch (110) is 55°C.

4. The multi-level early warning and protection system for industrial and commercial energy storage cabinets according to claim 1, characterized in that, One end of the second normally open temperature control switch (210) is connected to the phase line of the 220V AC power in the energy storage cabinet, and the other end is connected to pin A of the intermediate relay (220). Pin B of the intermediate relay (220) is connected to the neutral line of the 220V AC power in the energy storage cabinet. Pin C of the intermediate relay (220) is connected to the phase line of the 220V AC power in the energy storage cabinet. Pin D of the intermediate relay (220) is connected to terminal A1 of the trip coil of the AC circuit breaker (230). Terminal A2 of the trip coil of the AC circuit breaker (230) is connected to the neutral line of the 220V AC power in the energy storage cabinet.

5. The multi-level early warning and protection system for industrial and commercial energy storage cabinets according to claim 4, characterized in that, The A and B pins of the intermediate relay (220) are the pins at both ends of the internal coil of the intermediate relay (220), and the C and D pins of the intermediate relay (220) are the pins at both ends of the normally open contacts inside the intermediate relay (220).

6. The multi-level early warning and protection system for industrial and commercial energy storage cabinets according to claim 4, characterized in that, The closing temperature of the second normally open temperature control switch (210) is 65°C.

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