Safety protection switch device of electric water heater

Abstract

The utility model belongs to the technical field of electrical safety of household appliances, and discloses an electric water heater safety protection switch device which comprises a power supply control device used for disconnecting or connecting electrical connection between an electric water heater and a power supply. The system further comprises a door opening trigger device used for monitoring the bathroom environment in real time, the door opening trigger device is connected with the power supply control device through wireless communication, the door opening trigger device comprises a first shell, the top face of the first shell is in threaded connection with an outer cover, the front side face of the first shell is in threaded connection with a second shell, and the outer cover is in threaded connection with the second shell. A swing rod is rotationally connected to the right side face of the second shell, and a rolling wheel is rotationally mounted and connected to the right side face of the swing rod. According to the water storage type electric water heater, the power supply control device and the door opening trigger device are matched for use, the bathroom environment can be monitored in real time, the working state of the electric water heater can be effectively controlled, the use safety of the water storage type electric water heater is improved, a user is prevented from getting an electric shock due to negligence, and it is ensured that the user can normally and safely use the water heater.

Description

Technical Field

[0001] The utility model relates to the technical field of household electrical appliance safety, in particular to a safety protection switch device for an electric water heater. Background Art

[0002] With the continuous progress of society and the improvement of people's quality of life, electric water heaters, as an indispensable bathing equipment in modern family life, are receiving more and more attention from consumers for their selection and safety. In particular, storage-type electric water heaters have gradually become the mainstream choice in the market due to their significant advantages such as convenient installation, simple use, large water output, stable water temperature and reliable quality.

[0003] However, the working principle of a storage electric water heater is to heat the water in the inner tank through an electric heater, and the water in the inner tank will directly contact the human body during the bathing process. Since water is a conductor of electricity, once the electrical appliance has problems such as leakage or short circuit, it may cause the risk of electric shock, posing a serious threat to the user's life safety.

[0004] To this end, the utility model provides a safety protection switch device for an electric water heater. Utility Model Content

[0005] In view of the above-mentioned problems existing in the existing technology, the purpose of the utility model is to: be able to monitor the bathroom environment in real time and effectively control the working state of the electric water heater, improve the safety of the use of the storage electric water heater, prevent the user from getting an electric shock due to negligence, and ensure that the user can use the water heater normally and safely.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] An electric water heater safety protection switch device comprises a power supply control device for disconnecting or closing the electrical connection between the electric water heater and the power supply;

[0008] It also includes a door opening trigger device for real-time monitoring of the bathroom environment, the door opening trigger device is connected to the power control device through wireless communication, the door opening trigger device includes a first shell, the top surface of the first shell is screwed with an outer cover, the front side surface of the first shell is screwed with a second shell, the right side surface of the second shell is rotatably connected to a swing rod, and the right side surface of the swing rod is rotatably installed with a rolling wheel.

[0009] As a further preferred technical solution of the utility model, the first shell is provided with a mounting plate portion, and the mounting plate portion is a rounded rectangle as a whole. A mounting hole is provided at each of the four corners of the mounting plate portion. An opening cavity is provided on the central top surface of the mounting plate portion. The outer contour of the opening cavity is also a rounded rectangle. First screw holes are provided at the four corners of the inner wall of the opening cavity. The top surface of the opening cavity is covered with an outer cover, and the opening cavity is screwed to the outer cover through the first screw holes.

[0010] As a further preferred technical solution of the utility model, a first connecting part is provided on the rear side of the opening cavity, the first connecting part is a semicircular rectangle, a second screw hole is provided in the center of the first connecting part, and a plastic plug is plugged in the second screw hole, and a second connecting part is provided on the front side of the opening cavity, the second connecting part is a rounded rectangle, third screw holes are provided in the four corners of the second connecting part, the first shell is screwed to the second shell through the third screw hole, a through hole is provided in the center of the second connecting part, and an internal push rod is provided in the through hole of the second connecting part.

[0011] As a further preferred technical solution of the utility model, a switch trigger component is built into the open cavity, and the switch trigger component includes a wiring seat mechanism, a first isolation plate, a wireless communication PCB board and a second isolation plate. A fourth screw hole and a grounding through hole are opened at the bottom of the open cavity, and the first shell is screwed to the wiring seat mechanism through the fourth screw hole. The first isolation plate is placed on the top surface of the wiring seat mechanism, the wireless communication PCB board is placed on the top surface of the first isolation plate, and the second isolation plate is placed on the top surface of the wireless communication PCB board.

[0012] As a further preferred technical solution of the utility model, the terminal block mechanism includes a terminal block and a terminal block cover, an elastic trigger component is arranged on the front side of the terminal block, the elastic trigger component abuts against the rear end of the internal push rod, and a plurality of groups of terminal blocks are arranged on the rear side of the terminal block, a first metal contact sheet and a second metal contact sheet are respectively connected to the bottom of the plurality of groups of terminal blocks, and the terminal block cover is buckled on the top surface of the terminal block.

[0013] As a further preferred technical solution of the utility model, the outer contours of the first isolation plate and the second isolation plate are octagonal, and each side of the first isolation plate and the second isolation plate abuts against the inside of the opening cavity;

[0014] The wireless communication PCB board is provided with a wireless communication circuit, the wireless communication circuit is powered by a button battery, and an LED lamp is provided on the bottom surface of the PCB board.

[0015] As a further preferred technical solution of the utility model, the second shell is a rectangular body, and the four corners of the front side of the second shell are provided with fifth screw holes. The second shell is screwed to the first shell through the fifth screw holes. The rear side of the second shell is provided with a circular hole for placing the internal push rod, and the right side of the second shell is provided with an insertion hole. A rotating shaft is inserted into the insertion hole of the second shell, the rotating shaft is in contact with the internal push rod, and the right end of the rotating shaft is connected to the swing rod.

[0016] As a further preferred technical solution of the utility model, the swing lever is provided with a rod body, a first connecting part and a second connecting part, the first connecting part is connected to the second connecting part, the top surface and the right side surface of the first connecting part are both provided with a through hole, the swing lever is connected to the rotating shaft through the right side surface through hole of the first connecting part, the top surface through hole of the first connecting part is fixed to the rotating shaft by a pin shaft, the right side surface of the second connecting part is also provided with a through hole, and the second connecting part is hinged to the rolling wheel through its right side surface through hole.

[0017] As a further preferred technical solution of the present invention, the first shell, the outer cover, the second shell, the swing rod and the rolling wheel are all made of a hard waterproof material in one piece.

[0018] As a further preferred technical solution of the utility model, the power control device is provided with a waterproof sealed switch box, the waterproof sealed switch box has a built-in power control circuit board, the waterproof sealed switch box has an outlet port and an inlet port, and waterproof connectors are installed at the outlet port and the inlet port of the waterproof sealed switch box. The power control circuit board is electrically connected to the live wire, the neutral wire and the ground wire through the waterproof connector of the outlet port or the inlet port, the live wire, the neutral wire and the ground wire of the inlet port are electrically connected to the power supply, and the live wire, the neutral wire and the ground wire of the outlet port are electrically connected to the electric water heater.

[0019] As described above, the utility model provides an electric water heater safety protection switch device, which has the following beneficial effects:

[0020] The utility model utilizes the above-mentioned electric water heater safety protection switch device, and through the coordinated use of a power control device and a door opening trigger device, it can monitor the bathroom environment in real time and effectively control the working state of the electric water heater, thereby improving the safety of the use of the storage type electric water heater, preventing users from getting electric shocks due to negligence, and ensuring that users can use the water heater normally and safely.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 This is a schematic diagram of the structure of a door opening trigger device of a safety protection switch device for an electric water heater applied for by the utility model;

[0024] Figure 2 A top view of a door opening trigger device of a safety protection switch device for an electric water heater applied for by the utility model;

[0025] Figure 3 for Figure 2 Sectional view along AA direction;

[0026] Figure 4 for Figure 2 Cross-sectional view along the BB direction;

[0027] Figure 5 A schematic diagram of the wiring socket structure of a safety protection switch device for an electric water heater applied for by the utility model;

[0028] Figure 6 A schematic diagram of the structure of a wiring socket mechanism (without a wiring socket cover) of a safety protection switch device for an electric water heater applied for by the utility model;

[0029] Figure 7 This is a schematic structural diagram of a power supply control device for an electric water heater safety protection switch device applied for by the utility model.

[0030] Summary of reference numerals and their descriptions:

[0031] 1. Power control device; 101. Waterproof sealed switch box; 111. Outlet port; 121. Inlet port; 102. Waterproof connector; 2. Door opening trigger device; 3. First shell; 301. Mounting plate; 302. Opening cavity; 303. First connecting part; 304. Second connecting part; 4. Outer cover; 5. Second shell; 6. Swing rod; 601. Shaft; 602. First connecting part; 603. Second connecting part; 7. Rolling wheel; 8. Internal push rod; 9. Switch trigger assembly; 901. Terminal block mechanism; 911. Terminal block; 921. Terminal block cover; 931. Elastic trigger assembly; 941. Terminal block; 951. First metal contact sheet; 961. Second metal contact sheet; 902. First insulating plate; 903. Wireless communication PCB board; 904. Second insulating plate; 10. Rotating shaft. DETAILED DESCRIPTION

[0032] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0033] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in this utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that can be produced by the utility model and the purposes that can be achieved, should still fall within the scope of the technical content disclosed in this utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of this utility model. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope of the implementation of this utility model. The specific structure can be described with reference to the drawings of the patent application.

[0034] The utility model provides a safety protection switch device for electric water heaters. Figures 1 to 7 As shown, it includes a power supply control device 1 for disconnecting or closing the electrical connection between the electric water heater and the power supply;

[0035] It also includes a door opening trigger device 2 for real-time monitoring of the bathroom environment. The door opening trigger device 2 is connected to the power control device 1 through wireless communication. The door opening trigger device 2 includes a first shell 3, the top surface of the first shell 3 is screwed with an outer cover 4, the front side of the first shell 3 is screwed with a second shell 5, the right side surface of the second shell 5 is rotatably connected to a swing rod 6, and the right side surface of the swing rod 6 is rotatably installed with a rolling wheel 7.

[0036] Specifically, the specific structure of the first shell 3 is as follows. Figure 1 , Figure 2 as well as Figure 3 As shown, in the present embodiment, the first shell 3 is provided with a mounting plate portion 301, and the mounting plate portion 301 is a rounded rectangle as a whole, and a mounting hole is provided at each of the four corners of the mounting plate portion 301. An opening cavity 302 is provided on the central top surface of the mounting plate portion 301, and the outer contour of the opening cavity 302 is also a rounded rectangle. First screw holes are provided at the four corners of the inner wall of the opening cavity 302, and the top surface of the opening cavity 302 is covered with an outer cover 4, and the opening cavity 302 is screwed to the outer cover 4 through the first screw holes.

[0037] A first connecting portion 303 is provided on the rear side of the open cavity 302, and the first connecting portion 303 is a semicircular rectangle. A second screw hole is provided in the center of the first connecting portion 303, and a plastic plug is plugged in the second screw hole. A second connecting portion 304 is provided on the front side of the open cavity 302, and the second connecting portion 304 is a rounded rectangle. Third screw holes are provided at the four corners of the second connecting portion 304, and the first shell 3 is screwed to the second shell 5 through the third screw holes. A through hole is provided in the center of the second connecting portion 304, and an internal push rod 8 is provided in the through hole of the second connecting portion 304.

[0038] The open cavity 302 has a built-in switch trigger component 9, and the switch trigger component 9 includes a wiring seat mechanism 901, a first isolation plate 902, a wireless communication PCB board 903 and a second isolation plate 904. A fourth screw hole and a grounding through hole are provided at the bottom of the open cavity 302. The first shell 3 is screwed to the wiring seat mechanism 901 through the fourth screw hole. The first isolation plate 902 is placed on the top surface of the wiring seat mechanism 901, the wireless communication PCB board 903 is placed on the top surface of the first isolation plate 902, and the second isolation plate 904 is placed on the top surface of the wireless communication PCB board 903.

[0039] It should be noted that the first isolation plate 902 and the second isolation plate 904 are used to protect the wireless communication PCB board 903 and play the role of insulation, dustproof and waterproof.

[0040] Specifically, the specific structure of the wiring seat mechanism 901 is as follows. Figure 3 , Figure 5 as well as Figure 6 As shown, in the present embodiment, the terminal block mechanism 901 includes a terminal block 911 and a terminal block cover 921, an elastic trigger assembly 931 is arranged inside the front side of the terminal block 911, and the elastic trigger assembly 931 abuts against the rear end of the internal push rod 8, and a plurality of groups of terminal blocks 941 are arranged on the rear side of the terminal block 911, and the bottoms of the plurality of groups of terminal blocks 941 are respectively connected with a first metal contact sheet 951 and a second metal contact sheet. In the present embodiment, four groups of terminal blocks 941 are arranged, and a pair of the first metal contact sheet 951 and the second metal contact sheet are each arranged, and the terminal block cover 921 is buckled on the top surface of the terminal block 911.

[0041] The outer contours of the first isolation plate 902 and the second isolation plate 904 are octagonal, and each side of the first isolation plate 902 and the second isolation plate 904 abuts against the inside of the opening cavity 302;

[0042] The wireless communication PCB board 903 is provided with a wireless communication circuit, the wireless communication circuit is powered by a button battery, and an LED light is provided on the bottom surface of the PCB board.

[0043] The second shell 5 is a rectangular body, and the four corners of the front side of the second shell 5 are provided with fifth screw holes. The second shell 5 is screwed to the first shell 3 through the fifth screw holes. The rear side of the second shell 5 is provided with a circular hole for placing the internal push rod 8, and the right side of the second shell 5 is provided with an insertion hole. A rotating shaft 10 is inserted into the insertion hole of the second shell 5, and the rotating shaft 10 is in contact with the internal push rod 8. The right end of the rotating shaft 10 is connected to the swing rod 6.

[0044] The swing lever 6 is provided with a rod body 601, a first connecting part 602 and a second connecting part 603. The first connecting part 602 is connected to the second connecting part 603. A through hole is provided on the top surface and the right side surface of the first connecting part 602. The swing lever 6 is connected to the rotating shaft 10 through the through hole on the right side surface of the first connecting part 602. The through hole on the top surface of the first connecting part 602 is fixed to the rotating shaft 10 by a pin shaft. A through hole is also provided on the right side surface of the second connecting part 603. The second connecting part 603 is hinged to the rolling wheel 7 through its right side through hole.

[0045] The first shell 3, the outer cover 4, the second shell 5, the swing rod 6 and the rolling wheel 7 are all made of a hard waterproof material in one piece.

[0046] Combination Figures 1 to 7 As shown, the specific use process of this embodiment is as follows:

[0047] When the bathroom door is open, that is, no one is using the electric water heater, the door opening trigger device 2 is not triggered, the power control device 1 closes the electrical connection between the electric water heater and the point source, and the storage type electric water heater heats the water in the inner tank through the electric heater;

[0048] When the bathroom door is closed, that is, when someone is using the electric water heater in the bathroom, the bathroom door abuts against the rolling wheel 7 and causes the swing rod 6 to swing. The swing rod 6 drives the rotating shaft 10 to rotate, thereby pushing the internal push rod 8, and the internal push rod 8 further pushes the elastic trigger component 931 of the terminal block mechanism 901, triggering the wireless communication PCB board 903 to send a signal to the power control device 1 through the wireless communication connection, and the LED light on the PCB board flashes, and the power control device 1 disconnects the electrical connection between the electric water heater and the point source, and the water storage type electric water heater stops heating the water in the inner tank through the electric heater. When the electric water heater is used up, the bathroom door is opened, the door opening trigger device 2 is reset, and the power control device 1 closes the electrical connection between the electric water heater and the point source, and the water storage type electric water heater heats the water in the inner tank through the electric heater.

[0049] Specifically, the specific structure of the power supply control device 1 is as follows. Figure 7 As shown, in this embodiment, the power control device 1 is provided with a waterproof sealed switch box 101, and the waterproof sealed switch box 101 has a power control circuit board built in. The waterproof sealed switch box 101 has an outlet port 111 and an inlet port 121. Waterproof connectors 102 are installed at the outlet port 111 and the inlet port 121 of the waterproof sealed switch box 101. The power control circuit board is electrically connected to the live wire, the neutral wire and the ground wire through the waterproof connector 102 of the outlet port 111 or the inlet port 121, the live wire, the neutral wire and the ground wire of the inlet port 121 are electrically connected to the power supply, and the live wire, the neutral wire and the ground wire of the outlet port 111 are electrically connected to the electric water heater.

[0050] It should be noted that the effective transmission distance of the utility model reaches 50 meters, and its power reaches 2000w of inductive power and 4000w of resistive power. It can be applied to household electric water heaters currently on the market, and the utility model can also customize the corresponding power for individual household electric water heaters.

[0051] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A safety protection switch device for an electric water heater, characterized in that: A power control device for opening or closing the electrical connection between the electric water heater and the power supply is included; It also includes a door opening trigger device for real-time monitoring of the bathroom environment, the door opening trigger device is connected to the power control device through wireless communication, the door opening trigger device includes a first shell, the top surface of the first shell is screwed with an outer cover, the front side surface of the first shell is screwed with a second shell, the right side surface of the second shell is rotatably connected to a swing rod, and the right side surface of the swing rod is rotatably installed with a rolling wheel.

2. The electric water heater safety protection switch device according to claim 1, characterized in that: The first shell is provided with a mounting plate portion, and the mounting plate portion is a rounded rectangle as a whole. A mounting hole is provided at each of the four corners of the mounting plate portion. An opening cavity is provided on the central top surface of the mounting plate portion. The outer contour of the opening cavity is also a rounded rectangle. First screw holes are provided at the four corners of the inner wall of the opening cavity. The top surface of the opening cavity is covered with an outer cover, and the opening cavity is screwed to the outer cover through the first screw holes.

3. The electric water heater safety protection switch device according to claim 2, characterized in that: A first connecting part is provided on the rear side of the opening cavity, the first connecting part is a semicircular rectangle, a second screw hole is provided in the center of the first connecting part, a plastic plug is plugged in the second screw hole, a second connecting part is provided on the front side of the opening cavity, the second connecting part is a rounded rectangle, third screw holes are provided at the four corners of the second connecting part, the first shell is screwed to the second shell through the third screw holes, a through hole is provided in the center of the second connecting part, and an internal push rod is provided in the through hole of the second connecting part.

4. The electric water heater safety protection switch device according to claim 3, characterized in that: The open cavity has a built-in switch trigger component, which includes a wiring seat mechanism, a first isolation plate, a wireless communication PCB board and a second isolation plate. A fourth screw hole and a grounding through hole are provided at the bottom of the open cavity. The first shell is screwed to the wiring seat mechanism through the fourth screw hole. The first isolation plate is placed on the top surface of the wiring seat mechanism, the wireless communication PCB board is placed on the top surface of the first isolation plate, and the second isolation plate is placed on the top surface of the wireless communication PCB board.

5. The electric water heater safety protection switch device according to claim 4, characterized in that: The terminal block mechanism includes a terminal block and a terminal block cover. An elastic trigger component is arranged on the front side of the terminal block, and the elastic trigger component abuts against the rear end of the internal push rod. A plurality of groups of terminal blocks are arranged on the rear side of the terminal block. The bottoms of the plurality of groups of terminal blocks are respectively connected to a first metal contact sheet and a second metal contact sheet. The terminal block cover is buckled on the top surface of the terminal block.

6. The electric water heater safety protection switch device according to claim 4, characterized in that: The outer contours of the first isolation plate and the second isolation plate are octagonal, and each side of the first isolation plate and the second isolation plate abuts against the inside of the opening cavity; The wireless communication PCB board is provided with a wireless communication circuit, the wireless communication circuit is powered by a button battery, and an LED lamp is provided on the bottom surface of the PCB board.

7. The electric water heater safety protection switch device according to claim 3, characterized in that: The second shell is a rectangular body, and the four corners of the front side of the second shell are provided with fifth screw holes. The second shell is screwed to the first shell through the fifth screw holes. The rear side of the second shell is provided with a circular hole for placing the internal push rod. The right side of the second shell is provided with an insertion hole. A rotating shaft is inserted into the insertion hole of the second shell, the rotating shaft is in contact with the internal push rod, and the right end of the rotating shaft is connected to the swing rod.

8. The electric water heater safety protection switch device according to claim 7, characterized in that: The swing lever is provided with a rod body, a first connecting part and a second connecting part. The first connecting part is connected to the second connecting part. A through hole is provided on the top surface and the right side surface of the first connecting part. The swing lever is connected to the rotating shaft through the through hole on the right side surface of the first connecting part. The top surface through hole of the first connecting part is fixed to the rotating shaft by a pin shaft. A through hole is also provided on the right side surface of the second connecting part. The second connecting part is hinged to the rolling wheel through its right side through hole.

9. An electric water heater safety protection switch device according to any one of claims 1 to 8, characterized in that: The first shell, the outer cover, the second shell, the swing rod and the rolling wheel are all made of hard waterproof material in one piece.

10. The electric water heater safety protection switch device according to claim 1, characterized in that: The power control device is provided with a waterproof sealed switch box, which has a power control circuit board built in. The waterproof sealed switch box is provided with an outlet port and an inlet port, and waterproof connectors are installed at the outlet port and the inlet port of the waterproof sealed switch box. The power control circuit board is electrically connected to the live wire, the neutral wire and the ground wire through the waterproof connector of the outlet port or the inlet port, the live wire, the neutral wire and the ground wire of the inlet port are electrically connected to the power supply, and the live wire, the neutral wire and the ground wire of the outlet port are electrically connected to the electric water heater.

Images