Spring compression mechanism for speed regulation module of fan
A fan speed control module, spring compression technology, applied in emergency protection devices, electrical components, circuits, etc., can solve problems such as reduced reliability, easy damage to pressed parts, poor anti-interference ability, etc., to improve functional safety. resistance, avoid compression failure, and increase the effect of contact area
Inactive Publication Date: 2015-06-10
SHANGHAI KRAH SEUFFER ELECTRONICS CO LTD
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- Application Information
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Problems solved by technology
[0004] The temperature fuse of the existing fan speed regulation module usually adopts a cantilever structure (such as figure 1 and 2 As shown), the conventional cantilever beam structure has a fixed end and a free end. The free end deforms and compresses the workpiece. When the compression reed is deformed by external force interference, the thermal fuse will move horizontally, making the compression invalid. At the same time, the pressure reed and the fuse are in line contact, which greatly reduces the reliability, so there are defects such as large bending moment, poor anti-interference ability and easy damage to the pressed parts.
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[0025] Such as image 3 As shown, a spring compression mechanism for the fan speed regulation module, the fan speed regulation module includes a thermal fuse 2 and a base 5, and the spring compression mechanism closely fits the thermal fuse 2 on the base 5 , the spring compression mechanism includes a spring pressing piece 1, a fastening screw 3 and a position stopper 4, one end of the spring pressing piece 1 is loaded into the position stopper 4, and the other end is connected with the fastening screw 3, and the middle circle The arc section is attached to the thermal fuse 2, and the contact arc surface of the spring pressure piece 1 and the thermal fuse 2 is deformed by tightening the fastening screw 3, thereby compressing the thermal fuse 2.
[0026] The spring pressing piece 1 includes two fixed ends and a middle stress deformation area, the two fixed ends are respectively connected with the fastening screw 3 and the position stopper 4, and the middle stress deformation ar...
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Abstract
The invention relates to a spring compression mechanism for a speed regulation module of a fan. The speed regulation module of the fan comprises a temperature fuse (2) and a base (5), wherein the spring compression mechanism is used for closely adhering the temperature fuse (2) to the base (5) and comprises a spring pressing piece (1), a fastening screw (3) and a position baffle (4), wherein one end of the spring pressing piece (1) is installed into the position baffle (4), and the other end of the spring pressing piece (1) is connected with the fastening screw (3); a middle arc section is adhered to the temperature fuse (2), and a contact cambered surface between the spring pressing piece (1) and the temperature fuse (2) is deformed by the fastening screw (3), so as to press the temperature fuse (2). Compared with the prior art, the spring compression mechanism provided by the invention has the advantages of being good in mechanical property, good in fatigue resistance, high in safety performance and the like.
Description
technical field [0001] The invention relates to a spring pressing mechanism, in particular to a spring pressing mechanism used for a fan speed regulating module. Background technique [0002] The automotive fan speed control module is an electronic component powered by a battery. It changes the voltage at both ends of the fan motor according to the signal from the air conditioner controller, thereby realizing the stepless speed regulation of the fan. The speed control module mainly includes vertical structural and horizontal structural types. [0003] The existing fan speed control module usually consists of a plastic base that meets the requirements of flame retardancy (the socket sheath is integrated on the plastic base), a PCB with pins, a thermal fuse (MTS), a compression reed, a power transistor / MOSFET tube and a Suitable aluminum radiator composition. The radiator part is installed in the volute of the fan to use the air flow of the fan to dissipate heat. In addition...
Claims
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Login to View More IPC IPC(8): H01H85/20
CPCH01H85/205
Inventor 王超李燕
Owner SHANGHAI KRAH SEUFFER ELECTRONICS CO LTD