Generator

Abstract

The utility model discloses a generator, which comprises a shell, a power device and a controller are arranged in the shell, the power device comprises an air filter air inlet and a pull disc air inlet, and a main air inlet corresponding to the pull disc air inlet and an auxiliary air inlet corresponding to the air filter air inlet are arranged on the shell. The controller is arranged at the main air inlet and provided with a heat dissipation part used for limiting airflow at the main air inlet to flow towards the air filter air inlet. The scheme solves the problem of insufficient power of the generator.

Description

Technical Field

[0001] The utility model relates to a generator. Background Art

[0002] The generator housing has components such as the engine, air filter, and controller installed inside. The engine generates a lot of heat when it is working, and the controller also generates a lot of heat when it is working. Therefore, an air inlet needs to be set on the housing to introduce cold air from the outside to cool the engine and controller. The engine is mainly cooled by inhaling air through the pull-plate air inlet. When the air filter is working, it also needs to inhale air through the air filter inlet and filter it before supplying it to the engine, so the air filter is generally set next to the air inlet to facilitate the intake of air. In actual installation, since the air filter needs to supply air to the engine in a timely manner, it is far away from the air inlet, and the installation position of the controller is close to the air inlet. It was found during the use of the generator that the generator is prone to insufficient power.

[0003] Chinese patent document CN203925812U discloses a silent generator, including an engine-generator unit, the engine-generator unit and the air filter arranged thereon are placed in a chassis with an air inlet and an air outlet, and the difference is that: an air inlet device is connected to the air inlet of the air filter, and the air inlet end of the air inlet device is arranged adjacent to the inner side of the air inlet of the generator chassis, so that the external cold air from the air inlet directly enters the air filter through the air inlet device. When the generator is working, due to the action of the cooling fan in the chassis, the external cold air will enter the chassis from outside the chassis through the chassis air inlet; at the same time, since the air filter also needs to inhale air, and the air inlet end of the air inlet device connected to the air filter air inlet is arranged adjacent to the inner side of the air inlet, the aforementioned cold air will enter the air inlet end of the air inlet device directly under the suction action of the air filter, and pass through the air inlet device and finally enter the air filter air inlet and enter the air filter. The purpose of the utility model to directly introduce external cold air into the air filter is achieved.

[0004] Although the above-mentioned prior art solves the problem of insufficient generator power to a certain extent, the addition of an air intake device increases both the material cost of the generator and the difficulty of assembling the generator. Utility Model Content

[0005] The purpose of the utility model is to provide an optional generator which can solve the problem of insufficient generator power and has a utility model concept different from the prior art.

[0006] In order to achieve the above-mentioned purpose, the basic scheme of the utility model provides a generator, including a shell, wherein a power device and a controller are arranged inside the shell, the power device includes an air filter inlet and a pull-plate air inlet, the shell is provided with a main air inlet corresponding to the pull-plate air inlet and an auxiliary air inlet corresponding to the air filter inlet, the controller is arranged at the main air inlet, and the controller is provided with a heat dissipation part for limiting the airflow at the main air inlet to flow toward the air filter inlet.

[0007] The beneficial effect of this basic solution is that: by adopting such a setting, the controller dissipates heat through the heat dissipation part, while limiting the airflow of the main air inlet to flow toward the air filter inlet, so that the air filter inlet mainly draws air from the auxiliary air inlet, thereby achieving cooling of the controller while greatly reducing the air filter's intake of hot air, thereby increasing the power of the generator.

[0008] Preferably, the heat dissipation unit includes a plurality of heat sinks, the heat sinks are arranged toward the main air inlet, and guide grooves are formed between adjacent heat sinks to guide the airflow away from the air filter inlet. With such an arrangement, the guide grooves formed by the heat sinks are used to limit the airflow from flowing toward the air filter, which is beneficial to further improve the heat dissipation effect of the controller and further improve the power of the generator.

[0009] Preferably, a bracket for supporting the controller is provided inside the housing, and the bracket is provided with a main vent directly opposite to the main air inlet and an auxiliary vent directly opposite to the auxiliary air inlet. With such a setting, through the cooperation between the controller and the main vent, the airflow resistance at the main vent is larger, while the airflow resistance at the auxiliary vent is smaller, so that part of the air entering from the main air inlet will flow toward the auxiliary vent, and after the airflow passes through the auxiliary vent, part of it will flow toward the pull-plate air inlet (the negative pressure of the pull-plate air inlet is generally greater than the negative pressure of the air filter inlet), thereby helping to reduce the airflow at the main vent to flow toward the air filter inlet, which is beneficial to further improve the power of the generator. At the same time, the part between the auxiliary vent and the main vent on the bracket will form a structure that blocks the airflow from passing through the main vent to flow toward the air filter inlet, which is beneficial to further avoid the phenomenon of power reduction caused by excessively high air filter intake temperature.

[0010] Preferably, the heat sink of the controller is arranged toward the bracket. With such an arrangement, it is possible to avoid excessive air flow resistance at the main ventilation hole to affect the ventilation effect.

[0011] The utility model has the following beneficial effects:

[0012] Compared with the prior art, the air intake device without the need for a separate air filter can increase the power of the generator while ensuring good heat dissipation of the controller, thereby helping to reduce costs. Through experiments, it can be seen that the use of this solution can increase the power of the generator by more than 10%. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of a generator embodiment of the utility model;

[0014] Figure 2 for Figure 1 Schematic diagram after removing the shell;

[0015] Figure 3 for Figure 1 Schematic diagram from another perspective after removing the shell. DETAILED DESCRIPTION

[0016] The following is further described in detail through specific implementation methods:

[0017] The reference numerals in the drawings of the specification include: housing 1, main air inlet 2, auxiliary air inlet 3, air filter air inlet 4, bracket 5, heat dissipation part 6, pull plate air inlet 7, and power device 8.

[0018] The embodiment is basically as shown in the attached Figure 1 , Figure 2 and Figure 3 As shown: A generator includes a shell 1, and a power device 8 and a controller are arranged inside the shell 1. The power device 8 includes an air filter air inlet 4 and a pull plate air inlet 7. The shell 1 is provided with a main air inlet 2 corresponding to the pull plate air inlet 7 and an auxiliary air inlet 3 corresponding to the air filter air inlet 4, the controller is arranged at the main air inlet 2, and the controller is provided with a heat dissipation part 6 for limiting the airflow at the main air inlet 2 to flow toward the air filter air inlet 4.

[0019] In this embodiment, the heat dissipation part 6 includes a plurality of heat dissipation fins, which are arranged toward the main air inlet 2, and guide grooves are formed between adjacent heat dissipation fins to guide the airflow away from the air filter inlet 4. In this embodiment, the guide grooves extend vertically downward.

[0020] In this embodiment, a bracket 5 for supporting the controller is provided inside the housing 1, and the bracket 5 is provided with a main ventilation hole directly opposite to the main air inlet 2 and an auxiliary ventilation hole directly opposite to the auxiliary air inlet 3. In this embodiment, the bracket 5 is plate-shaped. The heat sink of the controller is arranged toward the bracket 5. Specifically, when the controller is installed on the bracket 5, the heat dissipation portion 6 covers a large portion of the main ventilation hole from top to bottom.

[0021] By adopting this solution, the controller dissipates heat through the heat dissipation unit 6, while limiting the airflow of the main air inlet 2 from flowing toward the air filter inlet 4, so that the air filter inlet 4 mainly inhales air from the auxiliary air inlet 3; at the same time, through the cooperation between the controller and the main vents, the airflow resistance at the main vents is larger, while the airflow resistance at the auxiliary vents is smaller, so part of the air entering from the main air inlet 2 will flow toward the auxiliary vents, and after passing through the auxiliary vents, part of the air will flow toward the pull-plate air inlet 7, thereby helping to reduce the airflow at the main vents from flowing toward the air filter inlet 4. Thus, while achieving the cooling of the controller, it also greatly reduces the intake of hot air by the air filter, thereby increasing the power of the generator. It can be seen from the experiment that the use of this solution can increase the power of the generator by more than 10%.

[0022] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A generator, comprising a housing, wherein a power device and a controller are arranged inside the housing, wherein the power device comprises an air filter air inlet and a pull plate air inlet, wherein the housing is provided with a main air inlet corresponding to the pull plate air inlet and an auxiliary air inlet corresponding to the air filter air inlet, wherein: The controller is arranged at the main air inlet, and the controller is provided with a heat dissipation part for limiting the airflow at the main air inlet to flow toward the air filter inlet.

2. The generator according to claim 1, characterized in that: The heat dissipation part includes a plurality of heat dissipation fins, which are arranged toward the main air inlet, and guide grooves are formed between adjacent heat dissipation fins to guide the air flow toward a direction away from the air filter inlet.

3. The generator according to claim 2, characterized in that: A bracket for supporting the controller is arranged inside the shell, and a main ventilation hole facing the main air inlet and an auxiliary ventilation hole facing the auxiliary air inlet are arranged on the bracket.

4. The generator according to claim 3, characterized in that: The heat sink of the controller is arranged toward the bracket.

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