Electric water boiler control device

Abstract

The application provides an electric water boiler control device, and relates to the technical field of equipment management. The electric water boiler control device comprises a power supply, a control mechanism and an electric water boiler connected in sequence. The control mechanism comprises a first circuit breaker connected with the power supply, a time control switch connected with an output end of the first circuit breaker, an alternating current contactor connected with a zero line end of the time control switch, and the alternating current contactor connected with the electric water boiler. The time control switch is used for closing a contact point when a current time is in a preset time period, controlling the alternating current contactor to be closed, and making the electric water boiler work under power. In this way, the problem that a traditional electric water boiler cannot be flexibly controlled to be opened and closed according to a user's work period, resulting in energy waste, can be solved.

Description

Technical Field

[0001] This utility model relates to the field of equipment management technology, and more specifically, to a control device for an electric water heater. Background Technology

[0002] With the popularization of public service facilities, electric water heaters have been widely used in public places such as schools, hospitals, and office buildings. Currently, most electric water heaters on the market are manually controlled. In factory operations, to ensure efficiency, electric water heaters are usually kept on during the day. After get off work, workers may forget to turn them off, leaving them running overnight and wasting energy.

[0003] Therefore, existing electric water heaters have the problem of not being able to automatically control their opening and closing based on the user's work schedule. Utility Model Content

[0004] In view of this, the purpose of this application is to provide an electric water heater control device that can improve the problem that traditional electric water heaters cannot flexibly control the opening and closing according to the user's working period, resulting in energy waste.

[0005] To achieve the above technical objectives, the technical solution adopted in this application is as follows:

[0006] This application provides a control device for an electric water heater, comprising a power supply, a control mechanism, and an electric water heater connected in sequence. The control mechanism includes:

[0007] A first circuit breaker connected to the power supply, the output terminal of the first circuit breaker is connected to a time switch, the neutral terminal of the time switch is connected to an AC contactor, and the AC contactor is connected to an electric water heater.

[0008] The time control switch is used to close the contact when the current time is within a preset time period, thereby controlling the AC contactor to close so that the electric water heater can be powered on and operated.

[0009] In this technical solution, the automatic on / off management of the electric water heater during preset time periods is achieved through the coordinated control of a time-controlled switch and an AC contactor, effectively avoiding power loss during unnecessary periods. Simultaneously, a circuit breaker is used to construct the basic protection architecture, improving the system's operational reliability. The structure is simple and highly practical.

[0010] As an optional implementation, the control mechanism further includes a second circuit breaker;

[0011] The input terminals of the second circuit breaker are connected to the power supply and the first circuit breaker, respectively, and the output terminal of the second circuit breaker is connected to the AC contactor.

[0012] In this technical solution, a dual-circuit protection mechanism is formed by adding a second circuit breaker, which provides a backup protection path when the main circuit breaker fails, significantly enhancing the overload resistance and fault tolerance of the circuit system.

[0013] As an optional implementation, the control mechanism is mounted on a guide rail mounting bracket, which is provided with a snap-fit ​​interface and wiring terminals.

[0014] In this technical solution, the standardized design of the guide rail mounting bracket, combined with the snap-fit ​​interface, enables the modular assembly of the control mechanism. The integrated layout of the wiring terminals can improve the installation efficiency of various electrical components of the control mechanism, while reducing the wiring error rate.

[0015] As an optional implementation, the terminal block is a spring-pressed terminal block, and a transparent window of insulating material is provided on the outside of the terminal block.

[0016] In this technical solution, the spring-loaded terminals secure the connecting cables of various electrical components in the control mechanism through elastic pressure. Compared with the traditional screw fixing method, this helps reduce contact resistance. In addition, the transparent window design facilitates quick visual inspection of the wiring status, improving maintenance convenience. The structure is simple and highly practical.

[0017] As an optional implementation, an arc-extinguishing cover is integrated on the main contact point of the AC contactor, and the arc-extinguishing cover is integrally formed with the housing of the AC contactor.

[0018] In this technical solution, the integrated arc-extinguishing shroud structure suppresses the electric arc generated when the contacts are broken, shortens the duration of the arc, reduces the risk of fire, and extends the service life of the contactor.

[0019] As an optional implementation, the guide rail mounting bracket is equipped with an openable transparent protective cover made of insulating material, and the openable transparent protective cover is fixedly connected to the guide rail mounting bracket by magnetic fasteners.

[0020] In this technical solution, the magnetically connected transparent protective cover, while ensuring insulation protection, enables a convenient "open-cover inspection" maintenance mode, preventing dust, moisture, and other contaminants from entering the circuit system. It has a simple structure and strong practicality.

[0021] As an optional implementation, an LED indicator is also provided between the first circuit breaker and the second circuit breaker.

[0022] In this technical solution, the introduction of LED indicator lights forms a visual monitoring scheme. The changes in light color reflect the operating status of the circuit breaker in real time, intuitively displaying the energization status of the control circuit, facilitating rapid fault diagnosis. The structure is simple and highly practical.

[0023] As an optional implementation, the control mechanism further includes a solid-state relay, a backup power supply, and an alarm; the solid-state relay is connected between the first circuit breaker and the time-controlled switch, the alarm is connected to the solid-state relay, and the backup power supply is connected to the alarm.

[0024] In this technical solution, when the main control circuit of the electric water heater fails, a solid-state relay connects the alarm and the backup power supply, providing a protection path for the operation of the electric water heater and ensuring the reliability of the control device. Simultaneously, when the main control circuit fails, the alarm promptly issues a warning message to remind the user to inspect and repair the main control circuit of the electric water heater.

[0025] The utility model employing the above technical solution has the following advantages:

[0026] The technical solution provided in this application achieves automatic on / off management of the electric water heater during preset time periods through the coordinated control of a time-controlled switch and an AC contactor. This effectively avoids energy loss during unnecessary periods. Simultaneously, a circuit breaker is used to construct the basic protection architecture, improving the system's operational reliability. This addresses the problem of traditional electric water heaters being unable to flexibly control on / off operation according to user work periods, leading to energy waste. Attached Figure Description

[0027] This application can be further illustrated by the non-limiting embodiments given in the accompanying drawings. It should be understood that the following drawings only illustrate some embodiments of this application and should not be considered as limiting the scope. For those skilled in the art, other related drawings can be obtained from these drawings without any inventive effort.

[0028] Figure 1 This is one of the structural schematic diagrams of the electric water heater control device provided in the embodiments of this application.

[0029] Figure 2 This is a second schematic diagram of the structure of the electric water heater control device provided in the embodiments of this application.

[0030] Icons: 110 - Power supply; 120 - Control mechanism; 130 - Electric water heater; 121 - First circuit breaker; 122 - Time control switch; 123 - AC contactor; 124 - Solid state relay; 125 - Alarm; 126 - Backup power supply. Detailed Implementation

[0031] The present application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. In the description of this application, terms such as "first" and "second" are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] Please refer to Figure 1 This application provides a control device for an electric water heater. The control device may include a power supply 110, a control mechanism 120, and an electric water heater 130 connected in sequence. The control mechanism 120 may include a first circuit breaker 121 connected to the power supply 110. The output terminal of the first circuit breaker 121 is connected to a time-controlled switch 122. The neutral wire terminal of the time-controlled switch 122 is connected to an AC contactor 123, which is connected to the electric water heater 130. The time-controlled switch 122 is used to close its contacts when the current time is within a preset time period, controlling the AC contactor 123 to close, thereby energizing the electric water heater 130.

[0033] Thus, through the coordinated control of the time switch 122 and the AC contactor 123, the automatic on / off management of the electric water heater 130 during preset time periods is achieved, effectively avoiding power loss during unnecessary periods. At the same time, the use of circuit breakers to construct the basic protection architecture improves the reliability of system operation. The structure is simple and highly practical.

[0034] In this embodiment, the control mechanism 120 also includes a second circuit breaker. The input terminal of the second circuit breaker is connected to the power supply 110 and the first circuit breaker 121, respectively, and the output terminal of the second circuit breaker is connected to the AC contactor 123. An LED indicator is also provided between the first circuit breaker 121 and the second circuit breaker. Thus, by adding a second circuit breaker, a dual-circuit protection mechanism is formed, providing a backup protection path when the main circuit breaker fails, significantly enhancing the overload resistance and fault tolerance of the circuit system. At the same time, the introduction of the LED indicator forms a visual monitoring scheme, reflecting the circuit breaker's operating status in real time through changes in light color, intuitively displaying the energization status of the control circuit, facilitating rapid fault diagnosis.

[0035] As an optional implementation method, please refer to Figure 2Alternatively, the dual-circuit protection path can be achieved by sequentially connecting a solid-state relay 124, an alarm 125, and a backup power supply 126 between the first circuit breaker 121 and the time control switch 122. In this way, when the main control circuit of the electric water heater 130 fails, the solid-state relay 124 connects the alarm 125 and the backup power supply 126, providing a protection path for the operation of the electric water heater 130 and ensuring the reliability of the electric water heater control device. Simultaneously, when the main control circuit fails, the alarm 125 promptly issues a warning message to remind the user to inspect and repair the main control circuit of the electric water heater 130.

[0036] In this embodiment, the control mechanism 120 is mounted on a guide rail mounting bracket, which is equipped with a snap-fit ​​interface and wiring terminals. The wiring terminals are spring-loaded terminals, and a transparent window made of insulating material is provided on the outside of the terminals. An arc-extinguishing cover is integrated into the main contact point of the AC contactor 123, and the arc-extinguishing cover is integrally formed with the housing of the AC contactor 123. Thus, the guide rail mounting bracket improves installation efficiency and reduces wiring error rates; the transparent spring-loaded terminals reduce contact resistance and facilitate quick visual inspection of wiring status; and the arc-extinguishing cover shortens the duration of the electric arc, thereby reducing the risk of fire.

[0037] In this embodiment, an openable transparent protective cover made of insulating material is installed on the guide rail mounting bracket, and the openable transparent protective cover is fixedly connected to the guide rail mounting bracket by magnetic fasteners. Thus, the magnetically connected transparent protective cover, while ensuring insulation protection, enables a convenient "open-cover inspection" maintenance mode, preventing dust, moisture, and other contaminants from entering the circuit system. The structure is simple and highly practical.

[0038] The above are merely embodiments of this application and are not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A control device for an electric water heater, comprising a power supply, a control mechanism, and an electric water heater connected in sequence, characterized in that, The control mechanism includes: A first circuit breaker connected to the power supply, the output terminal of the first circuit breaker is connected to a time switch, the neutral terminal of the time switch is connected to an AC contactor, and the AC contactor is connected to an electric water heater. The time control switch is used for: When the current time is within a preset time period, the contact is closed to control the AC contactor to close, so that the electric water heater can be powered on and work.

2. The electric water heater control device according to claim 1, characterized in that, The control mechanism also includes a second circuit breaker; The input terminals of the second circuit breaker are connected to the power supply and the first circuit breaker, respectively, and the output terminal of the second circuit breaker is connected to the AC contactor.

3. The electric water heater control device according to claim 1, characterized in that, The control mechanism is mounted on a guide rail mounting bracket, which is equipped with a snap-fit ​​interface and wiring terminals.

4. The electric water heater control device according to claim 3, characterized in that, The terminal block is a spring-pressed terminal block, and a transparent window made of insulating material is provided on the outside of the terminal block.

5. The electric water heater control device according to claim 1, characterized in that, An arc-extinguishing cover is integrated on the main contact point of the AC contactor, and the arc-extinguishing cover is integrally formed with the housing of the AC contactor.

6. The electric water heater control device according to claim 3, characterized in that, The guide rail mounting bracket is equipped with an openable transparent protective cover made of insulating material, and the openable transparent protective cover is fixedly connected to the guide rail mounting bracket by magnetic buckles.

7. The electric water heater control device according to claim 2, characterized in that, An LED indicator light is also provided between the first circuit breaker and the second circuit breaker.

8. The electric water heater control device according to claim 1, characterized in that, The control mechanism also includes solid-state relays, backup power supplies, and alarms; The solid-state relay is connected between the first circuit breaker and the time control switch, the alarm is connected to the solid-state relay, and the backup power supply is connected to the alarm.

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