Thermal switch
A technology of thermal control switch and self-switching, which is applied in the direction of thermal switch, electric switch, thermal switch parts, etc., and can solve the problems of short circuit of current limiting resistor, failure of thermal control switch non-recovery type, inability to play current limiting and other problems , to achieve the effect of reducing power loss, efficient function, and quick recovery
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Embodiment 1
[0081] figure 1 It is a side sectional view of the thermal switch of Example 1. At once figure 1 In the illustrated thermal switch 10 , the thermal switch main body 1 is assembled into a box-shaped rectangular parallelepiped insulating frame 2 that is open on one side (the right side in the drawing).
[0082] Furthermore, the thermal switch main body 1 is sealed in the housing 2 by the sealing member 5, and the first terminal 3 and the second terminal 4 are terminals for connecting to external connection wires 41 and 42, respectively.
[0083] figure 2 is to remove figure 1 The frame body 2 and the sealing member 5 are disassembled to show the perspective view of the structure of the thermal switch main body 1 . use figure 1 and figure 2 Describe the structure of the thermal switch of this example.
[0084] Such as figure 1 and figure 2 As shown, the thermal switch main body 1 is composed of a fixed conductor 6 , an insulator 7 , a movable plate 8 , a bimetallic st...
Embodiment 2
[0160] Figure 6 It is an exploded perspective view showing the structure of the thermal switch of Example 2. In addition, in Figure 6 in, for with figure 2 The same structure or function part, added with the figure 2 The minimum number of labels required in the same description is indicated.
[0161] Figure 6 thermal switch 37 shown with figure 2 The difference is that there is no such as figure 2 The movable plate 8 is divided into a narrow part and a wide part like the thermal switch 10 shown, but is one piece.
[0162] Even in the shape of the movable plate as described above, the resistance can be increased by selecting its material as a low-conductivity material, so that it can be used as a resistive movable plate, that is, a heating resistor. The current to be processed can be set in the same manner as in the case of the first embodiment.
[0163] In addition, the movable plate may be a normal movable plate, and additional resistors may be incorporated in ...
Embodiment 3
[0165] Figure 7 It is an exploded perspective view showing the structure of the thermal switch of Example 3. In addition, in Figure 7 in, for with figure 2 The same structure or function part, added with the figure 2 The minimum number of labels required in the same description is indicated.
[0166]In the thermal switch 38 of this example, removed figure 2 or Figure 6 Movable plate 8, bimetal 9 has three modes of the effect of movable plate, the effect of resistor, the effect of double resistance concurrently. That is, the thermal protector 38 of this example is an example of a structure in which a current directly flows through the bimetal 9 .
[0167] The bimetal 9 of this example has a fixing portion 40 having a hole 39 fitted to the support 13 in the insulator 7 .
[0168] In addition, this bimetal 9 has: the second terminal 4, which is formed on the fixed part 40, for external connection; The position where the fixed contact 12 of the conductor 6 is opposit...
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