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Drinking machine using safety voltage control

A technology of safety voltage and water dispenser, which is applied in the field of water dispenser, can solve the problems of electrical circuit board fire, poor electrical safety, pass rate, etc., and achieve high electrical safety, good electrical safety performance, and the effect of suppressing sparks

Inactive Publication Date: 2008-04-30
NINGBO ZHENHAI HUATAI ELECTRIC APPLIANCE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, all products have a pass rate problem. Even for the best products, the pass rate can only be close to 100%, but cannot really reach 100%. This is well known
Therefore, in actual products, cases of accidents due to poor electrical safety also appear from time to time
For example: in the place where there are flammable and explosive gases, the sparks generated when the electrical switch of the water dispenser is closed or disconnected may cause a fire; the sparks generated by the exposed conductive part of the thermostat joint may cause Plastic parts catch fire; electrical circuit boards have also been reported to fire due to electrical leakage

Method used

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  • Drinking machine using safety voltage control
  • Drinking machine using safety voltage control
  • Drinking machine using safety voltage control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: As shown in Fig. 1, Fig. 2 and Fig. 3, a hot pot (2) is provided on the water dispenser, an electric heating tube (1) is arranged in the hot pot (2), and an upper side wall of the hot pot (2) is provided with With thermostat T 1 and thermal protector T 2 , the top of the water dispenser is provided with an electrical circuit board (3) and a heating switch K; the electrical circuit board (3) is provided with a power indicator light, a heating indicator light and a heat preservation indicator light to indicate the running state of the water dispenser; Also be provided with relay J in board (3) 1 , step-down capacitors and resistors and other electrical components; the working voltage of the power indicator light, heating indicator light, heat preservation indicator light and relay wire package is a safe voltage, which is obtained from the phase line (N line) of the power grid after being stepped down by a capacitor ; Electric heating tubes (1), relay J 1 ...

Embodiment 2

[0034] Embodiment two: in conjunction with Fig. 4, Fig. 5 and shown in Fig. 6, be provided with hot pot (2) on the water dispenser, be provided with electric heating tube (1) in the hot pot (2), the upper side wall of hot pot (2) is provided with With thermostat T 1 and thermal protector T 2 , the upper part of the water dispenser is provided with an upper electric circuit board (4) and a heating switch K, and the bottom of the hot tank (2) is provided with a lower electric circuit board (5); the electric main circuit is sequentially connected with electric heaters from the phase line to the neutral line. Tube (1), relay J 2 The normally open contact and thermal protector T 2 ; Electric circuit board (4) is provided with electrical components such as power supply indicator light, heat preservation indicator light, heating indicator light, and the working voltage of all electrical components in the upper electric circuit board (4) is safe voltage. Therefore, the upper electr...

Embodiment 3

[0036] Embodiment three: in conjunction with Fig. 7, Fig. 8 and shown in Fig. 9, be provided with hot pot (2) on the water dispenser, be provided with electric heating pipe (1) in the hot pot (2), the upper side wall of hot pot (2) is provided with With thermostat T 1 and thermal protector T 2 , the top of the water dispenser is provided with an electrical circuit board (6) and a heating switch K. On the electrical main circuit, relays J are connected in series from the phase line to the neutral line of the power grid. 3 The normally open contact, electric heating tube (1) and overheating protector T 2 .

[0037] The electrical circuit board (6) is provided with a transformer B, a power indicator light, a heating indicator light, a heat preservation indicator light and a relay J 3 , each indicator light is used to indicate the running status of the water dispenser. In the electrical circuit board (6), there are only the primary of transformer B and relay J 3 The normally...

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PUM

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Abstract

Disclosed is a drinking machine controlled by safety voltages, wherein the working voltages of electric elements as a heating switch, a relay solenoid and an indicating lamp in the electrical control system of the drinking machine are all safety voltages, the safety voltages are obtained via the reduction of municipal power-network voltage, and an electric heating element, a relay contact point and an over heat protector or a thermoregulator are arranged on a major loop. Compared with the prior art, the invention has the distinctive advantages that the electric safety performance and the spark-proof performance are both excellent.

Description

Technical field [0001] The invention relates to the technical field of water dispensers, in particular to a water dispenser controlled by a safe voltage. Background technique [0002] Now, water dispenser has been a kind of very common product that uses. The general water dispenser has a heating function, which can heat the drinking water to near boiling to meet the needs of users. [0003] The power supply voltage of the water dispenser electrical control system of known technology generally all adopts municipal power grid voltage (such as 220V, 110V etc.). For water dispensers that are of good quality in design, manufacture, transport and installation, there are usually no electrical safety issues. However, all products have a pass rate problem. Even for the best products, the pass rate can only be close to 100%, but cannot really reach 100%. This is well known. Therefore, in actual products, cases of accidents due to poor electrical safety also appear from time to time...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47J31/00A47J31/58
Inventor 汪孟金黄樟焱
Owner NINGBO ZHENHAI HUATAI ELECTRIC APPLIANCE FACTORY