Temperature control system of electromagnetic lock
A technology of temperature control system and electromagnetic lock, which is applied in the direction of temperature control, control/regulation system, non-electric variable control, etc., which can solve the problem of excessive temperature of electromagnet, loss of electromagnetic characteristics, and inability of electromagnet cooling measures to fully meet the electromagnetic requirements. Iron temperature requirements and other issues, to achieve the effect of reducing eddy current loss and hysteresis loss
Inactive Publication Date: 2019-03-15
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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Problems solved by technology
[0004] However, conventional electromagnet cooling measures cannot fully meet the temperature requirements of the electromagnet.
The actual use shows that the electromagnet with the original technology will still have the phenomenon that the temperature of the electromagnet is too high, resulting in the transformation of the ferromagnetic substance into a weak magnetic substance and the loss of electromagnetic properties.
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[0017] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...
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The invention discloses a temperature control system of an electromagnetic lock. The temperature control system of the electromagnetic lock comprises a power supply (1), a rectifier (11), a filter (12) and an inverter (13), wherein the input end of the rectifier (11) is connected with the output end of the power supply (1); the input end of the filter (12) is connected with the output end of the rectifier (11), the input end of the inverter (13) is connected with the output end of the filter (12), and the output end of the inverter (13) is connected with the output end of the filter (12). According to the temperature control system of the electromagnetic lock, based on frequency adjustment, by adjusting the alternating current frequency and keeping the specific value between the output voltage and the output frequency of the inverter constant, the alternating current frequency is reduced under the circumstance of not influencing electromagnetic attraction, so that iron core hysteresisloss and eddy-current loss of an electromagnet are reduced, the temperature of the iron core of the electromagnet is adjusted to not exceed the curie point, and function loss of the electromagnet is avoided due to too high temperature of the iron core.
Description
technical field [0001] The invention relates to the technical field of electromagnet temperature adjustment systems, in particular to an electromagnetic lock temperature control system. Background technique [0002] In the prior art, electromagnets are often used in automatic control as independent components or main parts of electromagnetic components, which requires high reliability of electromagnets. In actual work, the temperature of the electromagnet often rises and exceeds the Curie point due to long-term energization, so that the magnetic domain structure is destroyed due to thermal motion, thereby losing electromagnetic properties and affecting the function of the electromagnet. [0003] At present, electromagnetic components commonly use iron cores made of laminated electrical steel sheets with a thickness of 0.15 to 0.5 mm. Insulating paint is also applied between two adjacent sheets, and 4% silicon is added to the electrical steel sheet material to improve The re...
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IPC IPC(8): G05D23/20
CPCG05D23/20
Inventor 姜哲吕其明秦浩
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA