Ceramic tube instant heater for direct drinking machine

Abstract

The utility model discloses a ceramic tube instant heater for a direct drinking machine, which comprises a heater shell, one end of the heater shell is provided with a water inlet, the other end of the heater shell is provided with a water outlet, a ceramic heating tube is movably mounted in the heater shell, and the ceramic heating tube is provided with a water inlet and a water outlet. A steam polymerization buffer area is arranged at the position, close to the water outlet, between the ceramic heating pipe and the interior of the heater shell. Through cooperation of the ceramic heating pipe and the steam polymerization buffer area, when the device is used, the situation that when water boils, due to polymerization of a large amount of steam, the surface of the ceramic heating pipe is free of water, the temperature difference of the ceramic heating pipe is too large, and the service life of the ceramic heating pipe is shortened or the ceramic heating pipe is cracked and fails can be prevented through the steam polymerization buffer area; and the water temperature at the water inlet and the water temperature at the water outlet can be monitored through the water inlet temperature sensor and the water outlet temperature sensor correspondingly, and the stability and safety of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heaters, in particular to a ceramic tube instant heater for a direct drinking machine. Background Art

[0002] As the name suggests, a direct drinking water machine is a device that purifies water so that it can be drunk directly. It is a type of home appliance that uses multi-stage purification to make the tap water in the home drinkable.

[0003] The water inside the direct drinking machine usually needs to be heated, and a heater is needed to heat it.

[0004] The heater of the existing direct drinking machine may be damaged due to dry burning when the water is cut off or the cavity is empty. When the water boils, there is no water on the surface of the heating tube, which reduces the life of the heating tube. Therefore, it does not meet the existing needs. We have proposed a ceramic tube instant heating heater for direct drinking machines. Utility Model Content

[0005] The purpose of the present utility model is to provide a ceramic tube instant heater for a direct drinking machine, so as to solve the problems that the heater of the direct drinking machine proposed in the above background technology may be damaged due to dry burning when the flow is cut off or the cavity is empty, and the surface of the heating tube is dry when the water boils, thereby reducing the service life of the heating tube.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a ceramic tube instant heating heater for a direct drinking machine, comprising a heater shell, one end of the heater shell is provided with a water inlet, the other end of the heater shell is provided with a water outlet, a ceramic heating tube is movably installed inside the heater shell, and a steam polymerization buffer zone is provided between the ceramic heating tube and the inside of the heater shell near the water outlet.

[0007] Preferably, a water inlet temperature sensor is provided on the surface of the water inlet, a water outlet temperature sensor is provided on the surface of the water outlet, and an anti-dry-burning temperature sensor is provided on the surface of the heater housing near the water inlet.

[0008] Preferably, a stainless steel pressing plate is movably mounted on one end of the heater housing near the water inlet, a stainless steel pressing plate is mounted on the outer surface of the heater housing by screws, a temperature control switch is provided at the center of the stainless steel pressing plate, a connection wire is provided on the surface of the temperature control switch, a connection wire is provided on the surface of the ceramic heating tube, and the temperature control switch and the connection wire on the surface of the ceramic heating tube are connected in series.

[0009] Preferably, mounting clips are movably mounted on the outer surfaces of the water inlet temperature sensor and the water outlet temperature sensor.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. The utility model cooperates with the ceramic heating tube and the steam polymerization buffer zone so that when the device is in use, the steam polymerization buffer zone can prevent the surface of the ceramic heating tube from being dry due to the polymerization of a large amount of steam when the water boils, causing the temperature difference of the ceramic heating tube to be too large, thereby reducing the service life of the ceramic heating tube or causing cracking and failure;

[0012] 2. The utility model cooperates with the water inlet temperature sensor, the water outlet temperature sensor and the anti-dry-burn temperature sensor so that when the device is in use, the water temperature at the water inlet and the water outlet can be monitored respectively by the water inlet temperature sensor and the water outlet temperature sensor, thereby improving the stability and safety of the device. In addition, the anti-dry-burn temperature sensor can be arranged at the edge of the ceramic heating tube closer to the water inlet. When the heater is working normally, the temperature value fed back by the anti-dry-burn temperature sensor will be much lower than the temperature value of the water outlet temperature sensor. Once the flow is cut off or the cavity occurs, the temperature value fed back by the anti-dry-burn temperature sensor will rise sharply or even exceed the temperature value of the water temperature sensor. At this time, outsiders can notice it immediately and cut off the heating power supply through the main control circuit to achieve the anti-dry-burn function.

[0013] 3. The utility model cooperates with the temperature control switch and the anti-dry-burning temperature sensor. By setting the temperature control switch close to the ceramic heating tube and connecting the temperature control switch in series to the connection wire of the ceramic heating tube, when the anti-dry-burning temperature sensor fails, the temperature control switch can also promptly cut off the power supply of the ceramic heating tube within the designed temperature range to ensure that serious dry-burning accidents will not occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 A top view of the entire utility model;

[0016] Figure 3 For this utility model Figure 2 Cross-sectional side view in the AA direction;

[0017] Figure 4 For this utility model Figure 2 Cross-sectional front view in the middle BB direction.

[0018] In the figure: 1. Heater housing; 2. Water inlet; 3. Water outlet; 4. Water inlet temperature sensor; 5. Water outlet temperature sensor; 6. Temperature control switch; 7. Stainless steel pressing piece; 8. Anti-dry burning temperature sensor; 9. Connecting wires; 10. Ceramic heating tube; 11. Steam polymerization buffer zone; 12. Installation card. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] See also Figures 1 to 4 The utility model provides an embodiment: a ceramic tube instant heater for a direct drinking machine, comprising a heater shell 1, one end of the heater shell 1 is provided with a water inlet 2, the other end of the heater shell 1 is provided with a water outlet 3, a ceramic heating tube 10 is movably installed inside the heater shell 1, and a steam polymerization buffer zone 11 is provided between the ceramic heating tube 10 and the inside of the heater shell 1 near the water outlet 3.

[0021] Through the cooperation between the ceramic heating tube 10 and the steam polymerization buffer zone 11, when the device is in use, the steam polymerization buffer zone 11 can prevent the surface of the ceramic heating tube 10 from being dry due to the polymerization of a large amount of steam when the water boils, causing the temperature difference of the ceramic heating tube 10 to be too large, thereby reducing the service life of the ceramic heating tube 10 or causing cracking and failure.

[0022] A water inlet temperature sensor 4 is provided on the surface of the water inlet 2 , a water outlet temperature sensor 5 is provided on the surface of the water outlet 3 , and an anti-dry-burning temperature sensor 8 is provided on the surface of the heater housing 1 near the water inlet 2 .

[0023] Through the cooperation of the water inlet temperature sensor 4, the water outlet temperature sensor 5 and the anti-dry-burning temperature sensor 8, the device can monitor the water temperature at the water inlet 2 and the water outlet 3 respectively through the water inlet temperature sensor 4 and the water outlet temperature sensor 5 when in use, thereby improving the stability and safety of the device. The anti-dry-burning temperature sensor 8 can be set at the edge of the ceramic heating tube 10 closer to the water inlet 2. When the heater is working normally, the temperature value fed back by the anti-dry-burning temperature sensor 8 will be much lower than the temperature value of the water outlet temperature sensor 5. Once a flow interruption or cavity occurs, the temperature value fed back by the anti-dry-burning temperature sensor 8 will rise sharply or even exceed the temperature value of the water temperature sensor 5. At this time, outsiders can notice it at the first time and cut off the heating power supply through the main control circuit to achieve the anti-dry-burning function.

[0024] A stainless steel pressing plate 7 is movably mounted on one end of the heater housing 1 near the water inlet 2. The stainless steel pressing plate 7 is mounted on the outer surface of the heater housing 1 by screws. A temperature control switch 6 is provided in the center of the stainless steel pressing plate 7. A connection wire 9 is provided on the surface of the temperature control switch 6. A connection wire 9 is provided on the surface of the ceramic heating tube 10. The temperature control switch 6 and the connection wire 9 on the surface of the ceramic heating tube 10 are connected in series.

[0025] By cooperating with the temperature control switch 6 and the anti-dry-burning temperature sensor 8, by setting the temperature control switch 6 close to the ceramic heating tube 10 and connecting the temperature control switch 6 in series to the connection wire 9 of the ceramic heating tube 10, when the anti-dry-burning temperature sensor 8 fails, the temperature control switch 6 can also promptly cut off the power supply of the ceramic heating tube 10 within the designed temperature range to ensure that serious dry-burning accidents will not occur.

[0026] The outer surfaces of the water inlet temperature sensor 4 and the water outlet temperature sensor 5 are both movably mounted with mounting clamps 12 .

[0027] When the ceramic tube instant heater for a direct drinking machine is in use, the steam polymerization buffer zone 11 can prevent the surface of the ceramic heating tube 10 from being dry due to the polymerization of a large amount of steam when the water boils, causing the temperature difference of the ceramic heating tube 10 to be too large, thereby reducing the service life of the ceramic heating tube 10 or causing cracking and failure;

[0028] The water temperatures at the water inlet 2 and the water outlet 3 can be monitored respectively by the water inlet temperature sensor 4 and the water outlet temperature sensor 5, thereby improving the stability and safety of the device. The anti-dry-burning temperature sensor 8 can be arranged at the edge of the ceramic heating tube 10 closer to the water inlet 2. When the heater is operating normally, the temperature value fed back by the anti-dry-burning temperature sensor 8 will be much lower than the temperature value of the water outlet temperature sensor 5. Once a flow interruption or cavity occurs, the temperature value fed back by the anti-dry-burning temperature sensor 8 will rise sharply or even exceed the temperature value of the water temperature sensor 5. At this time, outsiders can notice it immediately and cut off the heating power supply through the main control circuit, thereby realizing the anti-dry-burning function.

[0029] By setting the temperature control switch 6 close to the ceramic heating tube 10 and connecting the temperature control switch 6 in series to the connecting wire 9 of the ceramic heating tube 10, when the anti-dry-burning temperature sensor 8 fails, the temperature control switch 6 can also cut off the power supply of the ceramic heating tube 10 in time within the designed temperature range to ensure that serious dry-burning accidents will not occur.

[0030] It will be apparent 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 characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A ceramic tube instant heater for a direct drinking machine, comprising a heater housing (1), characterized in that: A water inlet (2) is provided at one end of the heater housing (1), and a water outlet (3) is provided at the other end of the heater housing (1). A ceramic heating tube (10) is movably installed inside the heater housing (1), and a steam polymerization buffer zone (11) is provided between the ceramic heating tube (10) and the interior of the heater housing (1) near the water outlet (3).

2. The ceramic tube instant heater for a direct drinking machine according to claim 1, characterized in that: A water inlet temperature sensor (4) is provided on the surface of the water inlet (2), a water outlet temperature sensor (5) is provided on the surface of the water outlet (3), and an anti-dry-burning temperature sensor (8) is provided on the surface of the heater housing (1) near the water inlet (2).

3. The ceramic tube instant heater for a direct drinking machine according to claim 1, characterized in that: A stainless steel pressing plate (7) is movably mounted on one end of the heater housing (1) near the water inlet (2); the stainless steel pressing plate (7) is mounted on the outer surface of the heater housing (1) by screws; a temperature control switch (6) is provided at the center of the stainless steel pressing plate (7); a connection wire (9) is provided on the surface of the temperature control switch (6); a connection wire (9) is provided on the surface of the ceramic heating tube (10); and the temperature control switch (6) and the connection wire (9) on the surface of the ceramic heating tube (10) are connected in series.

4. The ceramic tube instant heater for a direct drinking machine according to claim 2, characterized in that: The outer surfaces of the water inlet temperature sensor (4) and the water outlet temperature sensor (5) are both movably mounted with mounting clips (12).

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