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Engine-driven generator

An engine-driven and generator technology, applied in engine components, engine cooling, machine/engine, etc., can solve the problems of high cost, complex box-shaped casing structure, and high consumption of materials, achieving short axial distance and saving Axial space, the effect of saving height space

Inactive Publication Date: 2012-07-18
CHONGQING RATO POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the composition of the box-shaped shell is relatively complicated, and more materials are consumed and the cost is high.

Method used

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Embodiment Construction

[0035] Next, when describing the embodiment of the present invention with reference to the accompanying drawings, the direction in which the handle 7 pulls the engine-driven generator 10 is taken as the front.

[0036] Such as figure 1 , image 3 As shown, the engine-driven generator 10 has: a frame 3 forming a supporting frame of the engine-driven generator 10; an engine 1 and a generator 2 coaxially driven by the engine 1, both elastically supported on the frame 3 The generator 2 is connected with a motor fan 22; the fuel tank 19 provides fuel for the engine 1; the electrical unit 9 controls the current output, and in an embodiment, the electrical unit 9 refers to the inverter (of course, except Inverter, also can comprise other electrical components); Control unit 5, it is installed in the space between two inclined sections 312b, 312b above frame 3 (referring to Figure 4 ), used to control the operation of the engine-driven generator 10; the cooling shell 4, used to gui...

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Abstract

The invention provides an engine-driven generator, which is simple in structure, low in manufacturing cost, and capable of effectively solving the problem of radiation of an electrical unit and assisting in implementation of radiation of a silencer. The engine-driven generator comprises a generator, an engine, a motor fan, a frame, the electrical unit and a cooling shell arranged on the frame to form a first air passage, and the electrical unit and the generator are cooled by means of operation of the motor fan. The cooling shell comprises a cylindrical front shell, an end cover covering the front shell, a circular cylindrical rear shell, a first air outlet and a partition, wherein the front shell is provided with a front space for containing the electrical unit, the end cover is provided with a cooling air inlet, the circular cylindrical rear shell is integrally connected with the front shell and provided with a rear space for containing the generator and the motor fan, the first air outlet is formed by a gap between a rear-end opening of the rear shell and the generator, the partition is integrally arranged between the front space and the rear space, and the front space and the rear space are communicated with each other through a round transitional air port on the partition.

Description

technical field [0001] The invention relates to a frame type variable frequency generator driven by an engine, in particular to the cooling technology of the generator and the electric unit (such as an inverter). Background technique [0002] The engine-driven variable frequency generator has many advantages compared with the engine-driven traditional generator, but due to the addition of electrical components such as inverters that control current output, the heat dissipation of these electrical components must be considered during design. Otherwise, these electrical components The generator may not work properly due to overheating. In order to solve the heat dissipation problem of electrical components such as inverters, the Chinese patent with the authorized announcement number CN201225193Y discloses an engine-driven generator with variable frequency output. To cool the inverter, there is no special cooling air duct, and its cooling effect is limited. The Chinese patent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B63/04F01P5/02H02K9/14
Inventor 周华闵绍明华祥顺
Owner CHONGQING RATO POWER
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