Direct-current (DC) motor with alarm device
A technology of alarm device and DC motor, applied in electromechanical devices, DC commutator, electrical components, etc., can solve problems such as spark generation, difficulty in effective monitoring, and motor burnout.
Inactive Publication Date: 2012-08-01
CHANGZHOU YUCHENG YAKE MOTOR
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Problems solved by technology
[0002] At present, the battery-powered DC motors all adopt a brush structure. During the brush wear process, the spring contacts the commutator plate in time. The wear degree of the brush needs to be observed manually, that is, the motor must be stopped and disassembled for observation at intervals. If the brush is worn to a certain extent, it must be replaced with a new one. If it is not replaced in time, sparks will be generated due to too small spring pressure and the brush is too short, and the motor will be burned. In addition, when the electric vehicle is running, due to The temperature of the motor cannot be monitored, it is difficult to monitor effectively, and it is easy to burn the motor due to the high temperature of the motor
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[0013] The present invention is described in further detail below in conjunction with the embodiment that accompanying drawing provides.
[0014] see figure 1 As shown, a DC motor with an alarm device, a front end cover 1, a rear end cover 2, an armature assembly 3, a stator assembly 4 and a brush assembly 5, the stator assembly 4 includes a casing 4-1 and a coil 4-2, the coil 4-2 is fixedly connected to the inner wall of the casing 4-1, the front end cover 1 and the rear end cover 2 are respectively connected to the two ends of the stator assembly 4, the armature assembly 3 is located in the stator assembly 4, and the two ends are respectively connected to the front end cover 1 is connected to the rear end cover 2, the brush assembly 5 is fixedly connected to the rear end cover 2, and also has a brush wear alarm device 6 and a coil temperature alarm device 7, and the brush wear alarm device 6 includes a brush alarm 6-1 and the insulated wire 6-2, the brush alarm 6-1 is elect...
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The invention discloses a direct-current (DC) motor with an alarm device, which comprises a front end cap, a rear end cap, an armature component, a stator component and an electric brush component. The stator component comprises an outer shell and a coil, the coil is fixedly connected to an inner wall of the outer shell, the front housing and the rear housing are respectively connected with two ends of the stator component, the armature component is arranged in the stator component, two ends of armature component are respectively connected with the front housing and the rear housing, and the electric brush component is fixedly connected with the rear end cap. The DC motor with the alarm device is characterized by further comprising a brush wear alarm device and a coil temperature alarm device. The brush wear alarm device comprises a brush alarm and an insulated wire, the brush alarm and the insulated wire are electrically connected, and two ends of the insulated wire extend into the electric brush component and are fixedly connected with the electric brush. The coil temperature alarm device comprises a coil alarm and a thermosensitive element, and the thermosensitive element is fixedly connected with the coil and electrically connected with the coil alarm. The service life of the motor can be prolonged, and the accidental burning-out probability of the motor can be reduced.
Description
technical field [0001] The invention relates to a DC motor, in particular to a DC motor with an alarm device for an electric vehicle. Background technique [0002] At present, the battery-powered DC motors all adopt a brush structure. During the brush wear process, the spring contacts the commutator plate in time. The wear degree of the brush needs to be observed manually, that is, the motor must be stopped and disassembled for observation at intervals. If the brush is worn to a certain extent, it must be replaced with a new one. If it is not replaced in time, sparks will be generated due to too small spring pressure and the brush is too short, and the motor will be burned. In addition, when the electric vehicle is running, due to The temperature of the motor cannot be monitored, it is difficult to monitor effectively, and it is easy to burn the motor due to the high temperature of the motor. Contents of the invention [0003] The object of the present invention is to pro...
Claims
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Inventor 蒋志龙荆振东孙洪发
Owner CHANGZHOU YUCHENG YAKE MOTOR