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PTC (Positive Temperature Coefficient) water heater for floor cleaning machine

A technology for floor cleaning machines and water heaters, applied to water heaters, fluid heaters, machine parts, etc., can solve problems such as difficult to guarantee safety, bursting of the heater body, and harshness, so as to avoid electric shock accidents and avoid The effect of excessive temperature rise and safety protection

Inactive Publication Date: 2015-03-11
CHANGSHU LINZHI ELECTRIC HEATING DEVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] But above-mentioned CN103743088A still has the following shortcoming: one, safety is difficult to guarantee, because, if the operator (comprising the tester when product is tested) neglects in time to open the water tank (also can be called water pipe) on the floor cleaning machine and The valve on the pipeline connected to the heater body (i.e. water valve), the liquid heating chamber is in an anhydrous state, so when the PTC heating element is heated, the temperature of the water originally stored in the liquid heating chamber rises sharply until the heating Second, due to the lack of effective grounding protection measures, once there is leakage or similar situations, it is easy to endanger the personal safety of users
In particular, foreign countries have extremely strict safety standards (safety standards) for such products, and the export volume of my country's floor cleaning machines continues to grow. Therefore, if it is not compensated, it will undoubtedly become a barrier that affects my country's floor cleaning machines from entering the international market.
[0008] Theoretically speaking, setting the temperature control element and the grounding part on the heater body can solve the above-mentioned technical problems. Due to the constraints of its own structure, it is often impossible to reliably and permanently locate the temperature control element and the grounding element on the heater body

Method used

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  • PTC (Positive Temperature Coefficient) water heater for floor cleaning machine
  • PTC (Positive Temperature Coefficient) water heater for floor cleaning machine
  • PTC (Positive Temperature Coefficient) water heater for floor cleaning machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] See figure 1 , in the figure 1 A heater body 1 belonging to the structural system of the PTC water heater for the floor cleaning machine of the present invention is provided in the present invention, and a heater body 1 is formed in the center of the length direction of the heater body 1 from the left end of the heater body 1 to the right end. A liquid heating chamber 11, at the left end of the heater body 1 and at a position corresponding to the left mouth of the liquid heating chamber 11, preferably a left sealing cover 12 is fixed by welding, and at the right end of the heater body 1 and at a position corresponding to The position of the right mouth of the liquid heating chamber 11 is preferably fixed by welding with a right sealing cover 13, and a PTC heating element installation chamber isolated (separated) from the liquid heating chamber 11 is formed at the lower part of the heater body 1 in the length direction 14; a PTC heating element 2, the PTC heating elemen...

Embodiment 2

[0038] See figure 2 , due to the figure 2 position relative to figure 1 Turned over 180°, so the PTC heating element installation cavity 14 is at the upper part of the heater body 1, and the PTC heating element installation cavity 14 is at the lower part of the heater body 1, but it is actually the same as figure 1 identical. In this embodiment 2, the aforementioned liquid contact joint 4 is fixed on the left end rear side of the heater body 1, and the left end rear side defined here is based on figure 1 For the position status shown. In addition, in the second embodiment, the cross-sectional shape of the aforementioned groove 141 is changed to a C-shape (or U-shape), and the electrical insulating film 24 is changed to a polyimide film. All the other are the same as the description to embodiment 1.

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Abstract

The invention discloses a PTC (Positive Temperature Coefficient) water heater for a floor cleaning machine, and belongs to the technical field of liquid heating devices. The PTC water heater for the floor cleaning machine comprises a heater body, a PTC heating element, a liquid inlet connector and a liquid outlet connector, wherein a liquid heating cavity is formed in the center of the heater body; a left sealing cover is fixed to the left end of the heater body; a right sealing cover is fixed to the right end of the heater body; a PTC heating element mounting cavity is formed in the lower part of the heater body; the PTC heating element is arranged in the PTC heating element mounting cavity; the liquid inlet connector is fixed to the right sealing cover and is communicated with the liquid heating cavity; the liquid outlet connector is fixed to the left sealing cover or the rear side of the left end of the heater body and is communicated with the liquid heating cavity. The PTC water heater for the floor cleaning machine has the characteristics that an auxiliary element mounting cavity is formed in the upper part of the heater body and is isolated from the liquid heating cavity; a grounding guide piece and a temperature sensing element are arranged in the auxiliary element mounting cavity; the temperature sensing element is electrically connected with the PTC heating piece and is connected with a power circuit; the situations of excessive temperature rise of the liquid heating cavity and even heater body burst caused by misoperation are avoided, and electric shock accidents caused by electric leakage are avoided.

Description

technical field [0001] The invention belongs to the technical field of liquid heating devices, and in particular relates to a PTC water heater for a floor cleaning machine. Background technique [0002] The floors mentioned above include concrete floors, painted floors, marble floors, floors with various types of carpets, floors with ceramic floor tiles, floors with wooden floors, and so on. The floor cleaning machines mentioned above are more and more widely used in homes and public places. The public places mentioned here are hotels, restaurants, various clubs, exercise venues, airports, stations, squares, shopping malls and Cultural and entertainment venues, etc. [0003] In order to effectively remove all kinds of dirt stubbornly attached to the floor, it is usually necessary to wet the floor when the floor cleaning machine cleans the floor. Therefore, the floor cleaning machine is generally equipped with a water tank and a water heater, which are heated by water. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H1/12F24H9/00F24H9/20F24H9/18A47L11/40
Inventor 黄明峰
Owner CHANGSHU LINZHI ELECTRIC HEATING DEVICE