Patent Application
20150181648
The present invention relates to a miniature temperature control structure for an electric heating piece which miniaturizes a size of a circuit board of a miniature temperature controller to lower production cost of the electric heating piece and to carry the electric heating piece easily.
With reference to
However, the conventional electric heating piece still has the following defects:
1. The control unit has plural adjustable buttons arranged thereon, so it has cannot be miniaturized in a small size.
2. A temperature and a heating time can only be set within a limited range, thus limiting heating temperature and time.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages.
The primary objective of the present invention is to provide a miniature temperature control structure for an electric heating piece which miniaturizes a size of a circuit board of a miniature temperature controller to lower production cost of the electric heating piece and to carry the electric heating piece easily.
To obtain the above objectives, a miniature temperature control structure for an electric heating piece provided by the present invention contains a miniature temperature controller.
The miniature temperature controller includes a circuit board on which a plurality of electronic parts are arranged, and the plurality of electronic parts at least has a microprocessor and an electrical contact portion disposed on the circuit board, the microprocessor has a thermostat program for setting a temperature value of each of a starting heating and a stopping heating based on requirement of an electric heating piece and for setting a heating time or a heating cycle time of the electric heating piece.
With reference to
The electric heating piece 10 converts an electric energy into heat energy, since it is a well-known prior art, further remarks are omitted.
The miniature temperature controller 20 includes a circuit board 21 on which a plurality of electronic parts 22 are arranged, and a length of the circuit board 21 is within 10 to 28 mm, a width of the circuit board 21 is within 6 to 20 mm. The plurality of electronic parts 22 at least has a microprocessor 23, a temperature sensing element 26, and an electrical contact portion 24 disposed on the circuit board 21; the microprocessor 23 has a thermostat program 231 for setting a temperature value of each of a starting heating and a stopping heating based on requirement of the electric heating piece 10 and for setting a heating time or a heating cycle time of the electric heating piece. The temperature sensing element 26 is provided to sense a temperature resulting from the electric heating piece 10 and to feedback a sensed temperature to the microprocessor 23. The temperature sensing element 26 is arranged on the circuit board 21 and is designed in at least two types. For example, as shown in
The adjusting device 30 includes an adjustable controller 31, a base 32, an accommodation portion 33, two guiding rods 34, a movable plate 35, and a resilient member 36.
The adjustable controller 31 is an electronic apparatus with setting functions, such as setting an on/off temperature value, a heating time, etc. The accommodation portion 33 receives the miniature temperature controller 20, and the two guiding rods 34 extend outwardly from the base 32, the movable plate 35 is slidably fitted onto the two guiding rods 34, and the resilient element 36 are defined between the movable plate 35 and the base 32 so that the movable plate 35 slides along the two guiding rods 34.
The adjusting device 30 includes a signal connecting segment 37 and a power connecting segment 38 which correspond to an upper side (or a lower side) of the electrical contact portion 24 of the miniature temperature controller 20, and the signal connecting segment 37 and the power connecting end 38 are electrically connected with the adjustable controller 31 via a signal cable 39. In this embodiment, the signal connecting segment 37 and the power connecting segment 38 are mounted on a bottom end of the movable plate 35 opposite to the electrical contact portion 24 of the miniature temperature controller 20, and the signal cable 39 extends to the adjustable controller 31 from the movable plate 35.
As desiring to reset a temperature control function set by the thermostat program 231, the adjustable controller 31 sets a value of the temperature control function (such as an on/off temperature value or the heating cycle time), and the miniature temperature controller 20 is placed in the accommodation portion 33, the movable plate 35 is pressed so that the signal connecting segment 37 and the power connecting segment 38 electrically connect with the two signal pins 241 and the two power supply pins 242, thereby resetting the temperature control function.
Referring further to
Thereby, the circuit board 21 of the miniature temperature controller 20 is miniaturized to lower production cost of the electric heating piece and to carry the electric heating piece easily.
While the preferred embodiments of the invention have been set forth for the purpose of disclosure, modifications of the disclosed embodiments of the invention as well as other embodiments thereof may occur to those skilled in the art. Accordingly, the appended claims are intended to cover all embodiments which do not depart from the spirit and scope of the invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 102147357 | Dec 2013 | TW | national |
