Leak-proof water heater

Abstract

The utility model provides a leakproof water heater which comprises a shell and a heating plate set, a heating cavity is formed in the shell, the heating plate set is fixedly arranged in the heating cavity, a first opening, a second opening and a third opening are formed in the shell, and a leakage alarm assembly is fixedly connected to the third opening. The leakage alarm assembly comprises a fixed partition plate and a second sliding plate, the fixed partition plate is fixedly connected to the balance pipe and divides the balance pipe into a second cavity and a third cavity, and the second sliding plate is slidably connected into the third cavity. According to the scheme, the balance pipe which can be mutually balanced with the pressure in the heating cavity is arranged on the shell, so that a second contact switch on a second sliding plate in the balance pipe is in contact with a first contact switch on a fixed partition plate when the pressure reduction duration in the heating cavity exceeds a threshold value; therefore, the first contact switch sends a leakage signal to the console when the pressure reduction duration exceeds the threshold value, and the purpose of preventing leakage alarm caused by mistaken touch is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water heater equipment, and particularly relates to a leak-proof water heater. Background Technique

[0002] The leak-proof water heater is mainly designed to solve the water leakage problem existing in the traditional water heater during use. This problem may lead to waste of water resources and even may cause safety accidents. Therefore, the design of the leak-proof water heater aims to monitor and eliminate water leakage in real time to ensure the safety and stability of hot water supply.

[0003] The traditional water heater uses a sensor to measure the pressure of the inner cavity wall of the water heater to prevent water leakage. However, when the water heater is in use or being heated, the pressure on the inner cavity wall will change. Therefore, using a sensor to measure the cavity wall pressure may trigger a false alarm. Thus, a leak-proof water heater that is not prone to false alarms is needed. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a leak-proof water heater, which solves the problems raised in the above background technique.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model is realized through the following technical solutions: A leak-proof water heater, comprising a housing, a balance pipe and a heating plate group. A heating cavity is provided in the housing, and the heating plate group is fixedly arranged in the heating cavity. It is characterized in that: the housing is provided with a first opening, a second opening and a third opening. A leakage alarm component is fixedly connected to the third opening. The leakage alarm component comprises a fixed partition plate and a second sliding plate. The fixed partition plate is fixedly connected to the balance pipe. The fixed partition plate divides the balance pipe into a second cavity and a third cavity. The second sliding plate is slidably connected in the third cavity. A first contact switch is fixedly arranged on one end face of the fixed partition plate close to the second sliding plate. A second contact switch is fixedly arranged on one end face of the second sliding plate close to the fixed partition plate. The first contact switch is electrically connected to the second contact switch.

[0008] Preferably, the leakage alarm component further comprises a limit ring and a first sliding plate. The limit ring is fixedly connected to one end of the second cavity close to the heating cavity. The first sliding plate is slidably connected in the second cavity. A throttling channel is provided on the fixed partition plate.

[0009] Preferably, the second cavity is filled with damping oil, and the third cavity is filled with argon.

[0010] Preferably, a control console is fixedly connected to the outer shell. The control console is electrically connected to the first contact switch and the second contact switch, and the control console is electrically connected to the heating plate group.

[0011] Preferably, the radius of the inner circular surface of the limiting ring is smaller than the radius of the outer circular surface of the first sliding plate.

[0012] Preferably, a water inlet pipe is fixedly connected to the first opening, and a water outlet pipe is fixedly connected to the second opening.

[0013] (III) Beneficial effects

[0014] The utility model provides a water heater with leak prevention, having the following beneficial effects:

[0015] 1. In this solution, by setting a balance pipe on the outer shell that can balance with the pressure in the heating cavity, when the pressure reduction time in the heating cavity exceeds the threshold, the second sliding plate in the balance pipe contacts the first contact switch on the fixed partition, so that the first contact switch sends a leakage signal to the control console when the pressure reduction time exceeds the threshold, achieving the purpose of preventing false touch of the leakage alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front view structural schematic diagram of the utility model;

[0017] Figure 2 is the sectional structural schematic diagram of the utility model;

[0018] Figure 3 is Figure 2 the structural schematic diagram of A in

[0019] In the figure: 11, outer shell; 12, heating cavity; 13, heating plate group; 14, control console; 15, first opening; 16, second opening; 17, third opening; 18, water inlet pipe; 19, water outlet pipe; 20, balance pipe; 21, fixed partition; 22, second cavity; 23, third cavity; 24, limiting ring; 25, first sliding plate; 26, second sliding plate; 27, throttling channel; 28, first contact switch; 29, second contact switch. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] An embodiment of the utility model provides a water heater with leak prevention, as Figures 1 - 3As shown, it includes a housing 11, a heating chamber 12, a heating plate group 13, a control console 14, a first opening 15, a second opening 16, a third opening 17, a water inlet pipe 18, a water outlet pipe 19, a balance pipe 20, a fixed partition 21, a second cavity 22, a third cavity 23, a limiting ring 24, a first sliding plate 25, a second sliding plate 26, a throttling channel 27, a first contact switch 28, and a second contact switch 29.

[0021] As Figures 1 - 3 shown, a heating chamber 12 is provided in the housing 11, and the heating plate group 13 is fixedly arranged in the heating chamber 12. It is characterized in that: a first opening 15, a second opening 16, and a third opening 17 are provided on the housing 11, and a leakage alarm component is fixedly connected to the third opening 17. The leakage alarm component includes a fixed partition 21 and a second sliding plate 26. The fixed partition 21 is fixedly connected to the balance pipe 20. The fixed partition 21 divides the balance pipe 20 into a second cavity 22 and a third cavity 23. The second sliding plate 26 is slidably connected in the third cavity 23. A first contact switch 28 is fixedly arranged on one end face of the fixed partition 21 close to the second sliding plate 26, and a second contact switch 29 is fixedly arranged on one end face of the second sliding plate 26 close to the fixed partition 21. The first contact switch 28 is electrically connected to the second contact switch 29.

[0022] The leakage alarm component further includes a limiting ring 24 and a first sliding plate 25. The limiting ring 24 is fixedly connected to one end of the second cavity 22 close to the heating chamber 12. The first sliding plate 25 is slidably connected in the second cavity 22. A throttling channel 27 is provided on the fixed partition 21. Damping oil is filled in the second cavity 22, and argon is filled in the third cavity 23.

[0023] The setting of the damping oil in the second cavity 22, the argon in the third cavity 23, and the throttling channel 27 ensures that when the pressure in the heating chamber 12 decreases briefly, the second contact switch 29 on the second sliding plate 26 will not contact the first contact switch 28 on the fixed partition 21. Therefore, when the heating chamber 12 changes within the normal range, the alarm will not be triggered.

[0024] A control console 14 is fixedly connected to the housing 11. The control console 14 is electrically connected to the first contact switch 28 and the second contact switch 29. The control console 14 is electrically connected to the heating plate group 13. The inner circle radius of the limiting ring 24 is smaller than the outer circle radius of the first sliding plate 25. A water inlet pipe 18 is fixedly connected to the first opening 15, and a water outlet pipe 19 is fixedly connected to the second opening 16.

[0025] When the water heater of this solution leaks, first, the pressure in the heating chamber 12 decreases. Therefore, the pressure of the liquid in the heating chamber 12 on the first sliding plate 25 decreases and is less than the elastic force of the damping oil in the second cavity 22 on the first sliding plate 25. Therefore, the first sliding plate 25 moves downward.

[0026] Then, while the first sliding plate 25 moves downward, the volume of the damping oil in the second cavity 22 gradually increases, and the thrust of the damping oil in the second cavity 22 on the second sliding plate 26 decreases. The argon gas in the third cavity 23 pushes the second sliding plate 26 downward, and the damping oil slowly flows into the second cavity 22 from the third cavity 23 through the throttling channel 27.

[0027] Finally, the second contact switch 29 on the second sliding plate 26 contacts the first contact switch 28 on the fixed partition plate 21. The first contact switch 28 sends a leakage signal to the console 14, and the console 14 issues an alarm.

[0028] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A leak-proof water heater, comprising a housing (11), a balancing pipe (20) and a heating plate group (13), wherein a heating chamber (12) is provided in the housing (11), and the heating plate group (13) is fixedly arranged in the heating chamber (12), characterized in that: The housing (11) is provided with a first opening (15), a second opening (16) and a third opening (17); the third opening (17) is fixedly connected to a leakage alarm assembly; the leakage alarm assembly comprises a fixed partition (21) and a second sliding plate (26); the fixed partition (21) is fixedly connected to the balance pipe (20); the fixed partition (21) divides the balance pipe (20) into a second cavity (22) and a third cavity (23); the second sliding plate (26) is slidably connected in the third cavity (23); a first contact switch (28) is fixedly provided on one end surface of the fixed partition (21) close to the second sliding plate (26); a second contact switch (29) is fixedly provided on one end surface of the second sliding plate (26) close to the fixed partition (21); the first contact switch (28) is electrically connected to the second contact switch (29).

2. The leak-proof water heater according to claim 1, characterized in that: The leakage alarm assembly also includes a limit ring (24) and a first sliding plate (25), wherein the limit ring (24) is fixedly connected to one end of the second cavity (22) close to the heating cavity (12), and the first sliding plate (25) is slidably connected to the second cavity (22), and a throttling channel (27) is provided on the fixed partition (21).

3. The leak-proof water heater according to claim 2, characterized in that: The second cavity (22) is filled with damping oil, and the third cavity (23) is filled with argon gas.

4. The leak-proof water heater according to claim 2, characterized in that: A control console (14) is fixedly connected to the housing (11); the control console (14) is electrically connected to the first contact switch (28) and the second contact switch (29); and the control console (14) is electrically connected to the heating plate group (13).

5. The leak-proof water heater according to claim 2, characterized in that: The radius of the inner circumference of the limiting ring (24) is smaller than the radius of the outer circumference of the first sliding plate (25).

6. The leak-proof water heater according to claim 1, characterized in that: The first opening (15) is fixedly connected to a water inlet pipe (18), and the second opening (16) is fixedly connected to a water outlet pipe (19).

Images