Temperature controller with temperature control and protection function
A protection function, thermostat technology, applied in the direction of thermal switch components, etc., can solve the problems of high precision, reduced product life, product failure, etc., to achieve the effect of protecting the thermostat and external equipment
Inactive Publication Date: 2009-01-14
朱英年
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Problems solved by technology
The other is to use a closed double ceramic rod double disc thermostat. This kind of thermostat superimposes the above two parallel thermostats, and uses double ceramic rods to control the two thermostats respectively, because the two Each magnetic rod needs to be in contact with different bimetallic strips, and one of the bimetallic strips has a central hole, which makes the precision of the product unable to be high, which in turn reduces the product life.
[0003] On the other hand, in order to improve the sensitivity of temperature detection, the existing single bimetal temperature control thermostat often adopts a bald end cover, so that the bimetal directly contacts the heating body, and the temperature is more sensitive. The metal sheet is directly exposed to the air, which is easy to cause damage to the bimetal sheet. Once the temperature-sensitive bimetal sheet is damaged, it will cause product failure
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[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0022] Embodiment, see Fig. 1~Fig. 4:
[0023] The invention relates to a C-007S temperature controller of the KSD301 series, which can be applied to boilers, water heaters, microwave ovens, disinfection cabinets, dry closets, coffee pots, induction cookers, water dispensers, electric kettles, ovens, refrigerators, Air conditioning, aerospace and other temperature control and protection equipment or instruments.
[0024] This embodiment is a thermostat with temperature control and protection functions. The thermostat includes a housing 1, an upper cover 2 is arranged above the housing 1, and a temperature-sensitive stainless steel end cover 3 is arranged below the housing 1. The end cover 3 has an opening 31. In order to be more sensitive to temperature, open-ended end caps are generally used for thermostats that require sensitive temperature...
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The invention provides a temperature controller which has the a temperature control function and a protection function, comprising a shell, an end cover which is arranged below the shell and forms a chamber with the shell, a first dual-metal sheet which is arranged inside the chamber, a contact pair which is electrically connected with two terminals which are exposed out of the shell respectively, and a driving part which leads the contact pair to be closed or opened under the action of the first dual-metal sheet; the temperature controller of the invention is characterized in that the chamber formed by the end cover and the shell is also internally provided with a second dual-metal sheet which is arranged between the first dual-metal sheet and the driving part. Compared with the prior art, the temperature controller is provided with two dual-metal sheets; when the first dual-metal sheet fails to work when the malfunction occurs, the second dual-metal sheet can generate sudden jumping when the limit temperature is exceeded, thus shutting down the circuit in time and having the effect of protecting the temperature controller and the external equipment.
Description
technical field [0001] The invention relates to a temperature controller, in particular to a temperature controller with dual functions of temperature control and protection. Background technique [0002] At present, in thermostat products, if two functions of temperature control and overheating protection are to be realized at the same time, one is to use two independent thermostats connected in series to the circuit to realize them separately, and the other is a bimetal The temperature control thermostat of the chip can control the thermostat to work within the normal temperature range; the other is a protection thermostat with a manual reset device, when the temperature exceeds the normal operating temperature, and the first temperature control temperature When the controller fails again, cut off the power supply through the protection thermostat until the fault is eliminated. In actual use, the production cost of using two thermostats is relatively high, and the install...
Claims
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IPC IPC(8): H01H37/52H01H37/64
Inventor 朱英年
Owner 朱英年