CN220475554U - Heat abstractor for be used for generator - Google Patents

Abstract

The utility model discloses a heat dissipating device for a generator, which structurally comprises a frame, an inverter and a starter, wherein the inverter is arranged above the frame, the starter is arranged below the frame, the inverter is provided with a heat dissipating surface, and heat dissipating ribs are arranged on the heat dissipating surface; the starter is provided with an impeller, the starter is also provided with a first air outlet and a second air outlet, the first air outlet and the second air outlet are opposite to the radiating surface, and the first air outlet and the second air outlet are provided with air guide covers. Through setting up the dc-to-ac converter in the top of starter for the cooling surface covers directly over the starter, and the cold wind that impeller rotation produced in the starter directly blows the cooling surface of dc-to-ac converter under the control guide of wind scooper, and covers each region of cooling surface along the heat dissipation muscle of dc-to-ac converter, makes the whole heat dissipation region of dc-to-ac converter all obtain abundant and even cooling, has improved the utilization ratio of cooling wind by a wide margin, has promoted heat abstractor's cooling effect in the generator.

Description

Heat abstractor for be used for generator

Technical Field

The utility model belongs to the technical field of heat dissipation of generators, and particularly relates to a heat dissipation device for a generator.

Background

In recent years, along with the continuous breakthrough of the technology, the cost of the inverter is continuously reduced, so that the open frame type generator set with the same power can be equal to the conventional common generator set in cost, but the open frame type generator set has obvious advantages in the aspects of whole machine volume, weight and the like. Therefore, the market share of the open-frame variable frequency generator is greatly increased.

The inverter is a converter for converting high-frequency alternating current energy into constant-frequency constant-voltage or frequency-modulation voltage-regulation alternating current. The inverter generates a lot of heat when operating, but the core components in the inverter cannot operate at a temperature exceeding 85 ℃. If this temperature is exceeded, the inverter may be stopped and the service life of the inverter may even be affected. Therefore, it is a very important issue how to ensure that the operating temperature of the inverter in the generator set is lower than 85 ℃. The current method for solving the problem mainly comprises the following working principles of: and an opening is formed in the starter, part of impeller wind is guided to blow to the radiating surface, and cooling wind is guided to pass through a heating point of the inverter through the wind scooper and the radiating ribs in the process, so that heat is taken away, and the effect of cooling the inverter is achieved.

The prior art chinese patent CN204783258U discloses a generator, the structure of which comprises: an open frame; an engine and generator unit supported on the frame; the oil tank is arranged on the frame and is positioned above the engine and the generator unit; an inverter and a control panel arranged on the frame; the engine and generator unit is provided with a wind scooper; the method is characterized in that: an air outlet is arranged on the air guide cover, and the inverter is arranged in the following way: the cooling air blown out from the air outlet can just cool the radiating surface of the inverter.

However, the heat dissipation device in such a generator has two drawbacks: 1. the inverter is arranged along the tangential direction of the wind scooper, and the heating point of the inverter is far away from the air outlet of the wind scooper, so that the heat dissipation effect is poor; 2. the heat dissipation device has only a single air outlet, but the distribution of the heating points of the inverter with high power and double-voltage output is relatively scattered, so that the single air outlet is difficult to completely consider, and the heat dissipation effect is poor.

Therefore, how to improve the heat dissipation effect of the heat dissipation device in the generator is a problem to be solved by those skilled in the art.

Disclosure of Invention

The utility model aims to provide a heat dissipation device for a generator, which solves the problem of poor heat dissipation effect of the existing heat dissipation device for the generator. In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the heat dissipation device for the generator comprises a frame, an inverter and a starter, wherein the inverter is arranged at the upper position of the frame, the starter is arranged at the lower position of the frame, the inverter is provided with a heat dissipation surface, and heat dissipation ribs are arranged on the heat dissipation surface; the starter is provided with an impeller, the starter is also provided with a first air outlet and a second air outlet, the first air outlet and the second air outlet are corresponding to the radiating surface, and the first air outlet and the second air outlet are provided with air guide covers.

Further preferably, a filter screen is arranged at the first air outlet and/or a filter screen is arranged at the second air outlet.

Further preferably, the shape of the wind scooper is set to be a straight cylinder shape or an open shape.

Further preferably, the starter is further provided with a third air outlet and a fourth air outlet.

Compared with the prior art, the utility model has the following beneficial effects: through setting up the dc-to-ac converter in the top of starter for the radiating surface covers directly over the starter for the cold wind that impeller rotation produced in the starter directly blows the radiating surface of dc-to-ac converter under the control guide of wind scooper, and cover each region of radiating surface along the radiating rib of dc-to-ac converter, make the whole heating surface of dc-to-ac converter can both be abundant and even cooling, improved the utilization ratio of cooling wind by a wide margin, and then promoted the cooling effect of heat abstractor in the generator.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the air outlet of the present utility model;

fig. 3 is a schematic structural diagram of an inverter according to the present utility model.

Reference numerals: 100. a frame; 200. an inverter; 201. a heat radiating surface; 202. a heat dissipation rib; 300. a starter; 301. an impeller; 302. a first air outlet; 303. a second air outlet; 304. a first filter screen; 305. a second filter screen; 401. a first air guide cover; 402. and the second wind scooper.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, unless otherwise specified and defined, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly through intermediaries, as would be understood by those skilled in the art, in view of the specific meaning of the terms described above.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1, the utility model discloses a heat dissipating device for a generator, which structurally comprises a frame 100, an inverter 200 and a starter 300, wherein the inverter 200 is arranged at the upper position of the frame 100, the starter 300 is arranged at the lower position of the frame 100, the inverter 200 is provided with a heat dissipating surface 201, and the heat dissipating surface 201 is provided with heat dissipating ribs 202; the starter 300 is provided with an impeller 301, the starter 300 is also provided with a first air outlet 302 and a second air outlet 303, the first air outlet 302 and the second air outlet 303 are corresponding to the radiating surface 201, the first air outlet 302 is provided with a first air guide cover 401, and the second air outlet 303 is provided with a second air guide cover 402.

The frame 100 is a frame for installing a generator set, and the inverter 200 is installed above the frame 100. The starter 300 is correspondingly disposed under the rack 100 such that the inverter 200 is located at a position directly above the starter 300. The inverter 200 is provided with a heat radiating surface 201 to radiate heat generated when the inverter 200 operates in a heat exchange mode. Radiating ribs 202 are distributed on the radiating surface 201 to increase the contact area between the radiating surface 201 and the outside air, so as to improve the radiating effect of the radiating surface 201. The radiating surface 201 of the inverter 200 is arranged on the frame of the open-frame generator set downwards. The starter 300 is provided with an impeller 301, the impeller 301 and the generator rotate coaxially, and cold air is generated when the impeller 301 starts to rotate, so that the starter is a cold air source of the heat dissipation device. The starter 300 is provided with a first air outlet 302 and a second air outlet 303, and the first air outlet 302 and the second air outlet 303 are rectangular, and the first air outlet 302 and the second air outlet 303 are opposite to the heat dissipation surface 201. The first air outlet 302 is provided with a first air guiding cover 401 for controlling the direction of cold air flowing out of the first air outlet 202, and the second air guiding cover 402 is provided with a second air outlet 303 for controlling the direction of cold air flowing out of the second air outlet 303. When the cold air generated by the rotation of the impeller 301 flows to the first air outlet 302 and the second air outlet 303, and the first air guide cover 401 and the second air guide cover 402 control the air direction of the cold air, the cold air is guided to be directly blown onto the heat dissipation surface 201, and covers each area of the heat dissipation surface 201 along the heat dissipation ribs 202 arranged on the heat dissipation surface 201, so that the whole heat dissipation surface 201 of the inverter 200 can be sufficiently and uniformly cooled, the utilization rate of the cooling air is greatly improved, and the cooling effect of the heat dissipation device in the generator is further improved.

Further preferably, in other embodiments of the present application, the first filter 304 may be optionally disposed at the first air outlet 302, and/or the second filter 305 may be disposed at the second air outlet 303. The first filter screen 304 and the second filter screen 305 are specifically configured as steel wire mesh, and since the opening directions of the first air outlet 302 and the second air outlet 303 of the starter 300 are all upward, foreign matters such as fallen leaves may fall to the air outlet during the use of the generator. Therefore, the steel wire mesh is arranged at the air outlet of the starter 300, so that foreign matters can be prevented from falling into the starter 300 from the air outlet in the use process of the generator, the impeller 301 is prevented from being blocked by the falling foreign matters, and the use safety of the heat dissipation device is improved.

Further preferably, in other embodiments of the present application, the first wind scooper 401 is configured to be straight or open, and the second wind scooper 402 is configured to be straight or open. The cold air generated by the impeller 301 is in the tangential direction of the blades thereof, so that the cold air flowing out from the air outlets at different positions of the starter 300 has different wind directions. When the air flowing out of the air outlet arranged by the starter 300 is upward along the air outlet, the air guide cover can be arranged to be open, and the open air guide cover can enable cold air to directly blow the radiating surface 201 with a larger area; when the flowing out direction in the air outlet is other directions, the air guide cover is arranged to be in a straight groove shape, and the air guide cover in the straight groove shape can gather and guide cold air to be directly blown to the radiating surface 201 upwards, so that the radiating effect of the radiating device is improved.

Further preferably, in other embodiments of the present application, the starter 300 is further provided with a third air outlet and a fourth air outlet. The cold air is divided into two parts under the guidance of the starter 300, the first part controls the direction of the cold air along the first air outlet 302 and the second air outlet 303 by the first air guide cover 401 and the second air guide cover 402, guides the cold air to be directly blown onto the radiating surface 201 of the inverter 200, covers each area of the radiating surface 201 along the radiating ribs 202 arranged at the radiating surface 201, and takes away the heat generated by the inverter 200 in the working process; the second part blows to other components of the engine unit, such as a box body or a cylinder head of the engine, along the third air outlet and the fourth air outlet so as to take away the high temperature of the surfaces of the components of the engine when the engine works, and the working stability of the generator unit is ensured.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (5)

1. A heat sink for a generator, comprising a frame (100), an inverter (200) and a starter (300), characterized in that: the inverter (200) is arranged at the upper position of the frame (100), the starter (300) is arranged at the lower position of the frame (100), the inverter (200) is provided with a radiating surface (201), and radiating ribs (202) are arranged on the radiating surface (201); be provided with impeller (301) in starter (300), still be provided with first air outlet (302) and second air outlet (303) on starter (300), first air outlet (302) and second air outlet (303) are corresponding with cooling surface (201), and first air outlet (302) department is provided with first wind scooper (401), and second air outlet (303) department is provided with second wind scooper (402).

2. A heat sink for a generator according to claim 1, wherein: the first air outlet (302) is provided with a first filter screen (304), and/or the second air outlet (303) is provided with a second filter screen (305).

3. A heat sink for a generator according to claim 1 or 2, characterized in that: the first wind scooper (401) is arranged in a straight cylinder or an open shape, and the second wind scooper (402) is arranged in a straight cylinder or an open shape.

4. A heat sink for a generator according to claim 1 or 2, characterized in that: the starter (300) is also provided with a third air outlet and a fourth air outlet.

5. A heat sink for a generator according to claim 3, wherein: the starter (300) is also provided with a third air outlet and a fourth air outlet.