Oil pump with overheating protection function
A technology of overheating protection and oil pump, which is applied in the direction of pump control, liquid variable displacement machinery, machine/engine, etc., to achieve the effects of preventing structural damage, convenient installation, and easy processing
Inactive Publication Date: 2016-02-10
耐驰泵阀科技(天津)有限公司
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AI Technical Summary
Problems solved by technology
In order to prevent damage to the oil pump set caused by long-term use, the existing technology uses a relief valve or an oil pressure sensor on the pump body, but this will increase the complexity of the structure, and a more convenient method is needed for improvement
Method used
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Embodiment Construction
[0017] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0018] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0019] An oil pump with an overheating protection function, comprising an oil storage tank, an oil pump, a permanent magnet motor and a controller connected in sequence, the oil pump and the permanent magnet motor are coaxially arranged, a connecting end cover is arranged at the connection between the two, and the controller is arranged on On the connection end cover, there is an element hole on the connection end cover, and an overheating protection element with impedance is installed in the element hole, and a wiring board is arranged on the motor rear cover of the permanent magnet motor, and the power line of the permanent magnet motor passes through the wiring board It is connected i...
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The invention provides an oil pump with an overheating protection function. The oil pump comprises an oil storage tank, an oil pump body, a permanent magnet motor and a controller which are connected sequentially. The oil pump body is connected with the permanent magnet motor coaxially. The connection position of the oil pump body and the permanent magnet motor is provided with a connection end cover. The controller is arranged on the connection end cover. The connection end cover is provided with an element hole. An overheating protection element with impedance is installed in the element hole. A motor rear cover of the permanent magnet motor is provided with a connection plate. A power source line of the permanent magnet motor is in series connection with a direct current permanent magnet motor through the connection plate. The overheating protection element is in series connection with the direct current permanent magnet motor and is communicated with the controller. According to the oil pump, the connection end cover is provided with the overheating protection element, temperature detection is conducted on the position close to the oil pump, so that the work temperature of the oil pump is effectively controlled, and structure damage to an oil pump set due to overheating is prevented. The method is simple, machining is easy, and installation is convenient. A spare oil pump set can be started during overheating, so that running of a vehicle is not influenced.
Description
technical field [0001] The invention belongs to the field of electric steering oil pumps, in particular to an oil pump with an overheat protection function. Background technique [0002] Commonly used internal combustion engine-driven vehicles, the steering hydraulic oil pump is driven by a motor, the motor and the oil pump are connected through a coupling, and the electric control system controls the motor to make the oil pump output hydraulic oil to achieve the function of steering assistance. The electric steering oil pump is often in working condition during driving. Long-term use will cause fatigue of mechanical parts such as the oil pump shaft, burn out of the motor, and damage to the seal. In order to prevent damage to the oil pump set caused by long-term use, the prior art uses a relief valve or an oil pressure sensor on the pump body, but this will increase the complexity of the structure, and a more convenient method is needed for improvement. Contents of the inv...
Claims
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IPC IPC(8): F04B49/10
Inventor 林达
Owner 耐驰泵阀科技(天津)有限公司