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Controller atmospheric pressure balancing device

An atmospheric pressure and balance device technology, which is applied in engine control, electrical components, machines/engines, etc., can solve the problems of reduced electromagnetic compatibility performance of the control system, unbalanced air pressure of the controller, and blockage of accumulated water to ensure the collection of atmospheric pressure Excellent performance and electromagnetic compatibility, small external interface, and not easy to accumulate water

Active Publication Date: 2018-02-23
CHINA NORTH ENGINE INST TIANJIN
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Problems solved by technology

[0002] The circuit board of the diesel engine controller is often connected with an atmospheric pressure sensor chip. In the prior art, air holes are often opened on the controller housing, and a filter device is installed on the air hole, which solves the problem of atmospheric collection to a certain extent, but it is prone to Electromagnetic leakage, water blockage problems, resulting in the reduction of electromagnetic compatibility of the control system, and the imbalance of air pressure inside and outside the controller

Method used

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Embodiment Construction

[0019] 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.

[0020] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention Creation and simplification of description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should no...

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Abstract

The invention provides a controller atmospheric pressure balancing device which comprises a gas nozzle, a high-strength silicon rubber hose, an air joint, a vent plug, a controller cover, a controllerbody, a conductive seal ring and a circuit board. The small-diameter gas nozzle is introduced into a built-in filter device through a pipeline, the same atmospheric pressure inside and outside a controller is realized, the collection of outside atmosphere by an atmospheric pressure sensor on the circuit board in a box is facilitated, the air pressure of a position where an atmospheric pressure sensor chip on the circuit board in the controller is located is the same with outside atmospheric pressure, the outside interface of the controller atmospheric pressure balancing device is small, the possibility of stagnant water is little, electromagnetic shielding performance is not lost, and the controller atmospheric pressure collection performance and electromagnetic compatibility are ensured.

Description

technical field [0001] The invention belongs to the technical field of diesel engine control, in particular to a controller atmospheric pressure balance device. Background technique [0002] The circuit board of the diesel engine controller is often connected with an atmospheric pressure sensor chip. In the prior art, air holes are often opened on the controller housing, and a filter device is installed on the air hole, which solves the problem of atmospheric collection to a certain extent, but it is prone to Electromagnetic leakage, water blockage problems, resulting in the reduction of electromagnetic compatibility of the control system, and the imbalance of air pressure inside and outside the controller. Contents of the invention [0003] In view of this, the present invention aims to propose a controller atmospheric pressure balance device to solve the contradiction between the real-time acquisition of atmospheric pressure in the controller and the electromagnetic comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K5/06
CPCF02D2200/703H05K5/068
Inventor 郁国军褚全红孟长江傅文林闫云艳李承远王琭瑶
Owner CHINA NORTH ENGINE INST TIANJIN
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