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Melt-point type thermal protector (Fuse) introduction: |
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Fuse is a non-resetting sensitive device for thermal
protector, which is used to prevent domestic electric appliances
and industrial equipments from overheating. When the temperature
nearby rises to an irregular extent, the fuse learns outside
temperature and cuts the circuit. The sealed structure makes
sure that the molten system is stable and believable, and frees
from the influence of the atrocious circumstances such as
humidity and etc. |
| Working principle |
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The two down-lead of the fuse is connected by a segment of
easily-melt metal thread, which is covered by the special
colophony. The electric current flows from one down-lead to the
other. Under the assist of the special colophony and the effect
of tensile force of the melt metal surface, the molten substance
shrinks to two little beads each on the down-lead, when the
temperature nearby arises to its action extent. Thus the circuit
is cut forever.
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normal condition
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working condition
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| Characteristics |
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• to be sensitive to the outside temperature
• the action temperature is exact and stable
• tiny size, sealed structure
• the performance is believable and awarded by many security
standard certificates
(TÜV、CCC VDE)
• to apply the strict quality control in the whole manufacturing
process.(certificated by
the
ISO9002 Quality System)
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| Usage (the electric appliance that need
the protect when overheating) |
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• wire-loop products (power supplier, transformer, power
adapter, and charger)
• domestic electric appliance (washing machine, fanner, dryer,
lighting appliance and
game machine)
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| The molten substance (fuse) introduction
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The molten substance of Brand Huasheng is a non-resetting
protective device, which is used to preventing various electric
and heating appliance, dynamoelectric tools and industrial
equipments from overheating. When the working temperature
exceeds the rated value, the molten substance could cut the
circuit rapidly and avoid the damage caused by overheating.
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| Working principle: |
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The effective touch-off device of the molten substance is a
non-electric heat sensor, which has a unique structure. In the
normal operating temperature, the down-lead is touching the
shell in the help of the solid heat sensor withstanding the
spring, thus the circuit is connected (see graph 1). When a
particular temperature is reached, the little heat sensor is
melted and the looses spring push the touching piece off the
down-lead, thus the circuit is disconnected (see graph 2). Once
the molten substance cuts a circuit, the circuit will keep
disconnected until the new one take the place. In the process of
replacing the molten substance, the wrong circuit should be
corrected, thus the circuit could startup again.
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|
normal condition
|
|
working condition
 |
|
| Characteristics: |
|
• tiny size, metal shell
• high precision, non-resetting
• the performance is believable and awarded by many security
standard certificates
(TÜV、CCC VDE)
• to apply the strict quality control in the whole manufacturing
process.(certificated by
the
ISO9002 Quality System) |
| usage (the electric appliance that need the
protect when overheating) |
|
• various horsepower electric appliance (such as fanner,
ventilator, smoke extractor,
air-conditioner, refrigerator, washing
machine, cleaner, juice extractor and blower and
etc.)
• various dynamoelectric tools and electric and heating
appliance (such as electric
cooker, curium and stove,
micro-wave oven, water heater, electric iron, electric
radiator and etc.)
• domestic electric appliance (copycat, computer, dryer,
lighting appliance and game
machine
and etc.)
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