Heating device of anti-explosion electric hot-water bag
A technology of heating device and electric hot water bag, which is applied in ohmic resistance heating components, heating appliances for treatment, waterproof/airtight ohmic resistance, etc., which can solve the problem of hot water bag expansion and explosion, failure to measure the temperature of heat storage medium, and potential safety hazards And other issues
Active Publication Date: 2011-07-27
浙江乐雪儿家居用品有限公司
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Problems solved by technology
However, when the hot water bag is placed at an inclination, or the heat storage medium of the hot water bag leaks, at this time, the thermostat cannot touch the heat storage medium. No matter how high the temperature of the heat storage medium and the heating resistance are, the thermostat cannot measure The temperature of the heat storage medium and the heating resistor, in the case of no water or dry heating, the heating resistor will burn out the entire hot water bag, and may cause the hot water bag to expand and explode, which poses a safety hazard
Method used
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[0018] The present invention will be further described below in conjunction with accompanying drawing.
[0019] Such as figure 1 , figure 2 , image 3 As shown, a heating device for an explosion-proof electric hot water bottle includes an insulating casing 1 sealed with the outer bag body of the hot water bag. The power supply pin 2 is connected, the heating tube 4 is connected with a common thermostat 6 and a non-recoverable thermostat 7, the common thermostat 6 and the non-recoverable thermostat 7 are built in the middle part of the heating tube 4 bent, and the heating tube 4 joint and The power cord is first injected with hard plastic material 41 for insulation and sealing. After sealing, the joint of heating pipe 4 and its power cord 5 are wrapped with PVC material 42 for injection molding. The thermostat 7 is fixedly wrapped into a whole. Among them, the metal shell 8 is formed by connecting two upper and lower pieces. The lower metal shell piece is provided with a s...
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The invention discloses a heating device of an anti-explosion electric hot-water bag, which comprises an insulting shell which is arranged in a sealing way with an outer hot-water bag body, wherein a power pin and an indicator are arranged in the insulating shell; a heating tube is connected with the power pin through a power line; the heating device is characterized in that the heating tube is connected with a temperature controller; the joint of the heating tube is sealed in an insulating manner by a hard material for the first time, and the joint of the heating tube and the power line thereof are injection-molded and wrapped by a PVC (polyvinyl chloride) material again; the metal shell wraps the heating tube and the temperature controller into a whole fixedly; an insulating channel with one end surface and placed with the power line extends from the insulting shell; and the end surface of the insulating shell and the end surface of the PVC material at the joint of the heating tube are formed by high-frequency thermal bonding, so that the hot-water bag can be prevented from being burnt even if no water exists or dry burning happens; and the heating device has the characteristics of being safe and practical, compact in structure, and reasonable in arrangement.
Description
technical field [0001] The invention relates to a heating device for an electric hot water bag. Background technique [0002] The electric hot water bag usually includes a closed outer bag body, inside the bag body there is a heat storage medium and a heating device, the heating device has an insulating shell sealed with the outer bag body, the power pin and the indicator light are all arranged on the insulating shell body, and the inside of the insulating shell body The lower end of the cavity is equipped with a double thermostat and a heating resistor connected to the thermostat. The thermostat and the heating resistor are not integrated. They are connected by wires, and the heating resistor will twist and turn relative to the insulating shell. After the power supply of the hot water bag is turned on, the heating resistance heats the heat storage medium, and the thermostat measures the temperature from the heat storage medium. When the heat storage medium reaches the set ...
Claims
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IPC IPC(8): H05B3/02H05B3/04A61F7/08
Inventor 郏帅军
Owner 浙江乐雪儿家居用品有限公司