A generator

Abstract

The utility model discloses a generator, including the casing, the casing is provided with the air inlet, the inside of casing is located the air inlet and is provided with the control unit, the inside of casing is provided with the engine, the outside of engine is connected with the starting motor, the starting motor and control unit between electric connection have the relay, the relay and starting motor split type setting. This scheme has solved the problem that the starting motor is easy to appear the work abnormity because of the relay failure in prior art.

Description

Technical Field

[0001] This utility model relates to generators. Background Technology

[0002] A generator is a device that uses an engine to drive a power generation unit to produce electrical energy. When starting a generator, the engine must first be started. To make starting the engine simple and quick, a starter motor is used to drive the engine and eventually start it. In practice, the generator uses a control unit to control the starter motor via relays.

[0003] Chinese patent document CN219159086U discloses an electric starter gasoline generator, including a starter motor assembly and a generator. The generator includes a crankcase, a crankcase cover, a vent shroud, and a rotor gear. The starter motor assembly is located outside the crankcase and includes a drive motor, a one-way switch, a relay, and a mounting bracket. The mounting bracket includes a cylindrical housing with an open left port and a closed right port. A first lug for connecting to the drive motor is provided at the left port of the housing. A second lug for connecting to the relay is connected above the first lug. Two third lugs for connecting to the crankcase cover are provided to the right of the second lug. The first and second third lugs are respectively connected to the upper and lower sides of the housing. An arc-shaped notch is provided on the edge of the crankcase cover, and a cover is provided near the arc-shaped notch on the edge of the air guide shroud. The housing is fitted into the arc-shaped notch, and its right end face cooperates with the cover to form a closed connection. A fan-shaped notch is provided on the right end of the housing facing the rotor gear. The one-way valve is fixed in the inner cavity of the housing by a bearing. The left end gear of the one-way valve meshes with the output gear of the drive motor, and the right end gear of the one-way valve is exposed through the fan-shaped notch for meshing with the rotor gear. The first lug is fixedly connected to the drive motor, the second lug is fixedly connected to the relay, and the third lug is fixedly connected to the crankcase cover by bolts.

[0004] In this prior art, the relay and drive motor are connected as a whole by a mounting bracket and are set close to the engine. Therefore, when the generator structure is relatively compact, the relay is easily affected by the heat of the engine and may fail, affecting the normal operation of the generator. Utility Model Content

[0005] The purpose of this invention is to provide a generator to solve the problem that starting the motor is prone to malfunction due to relay failure in the prior art.

[0006] To achieve the above objectives, the basic solution of this utility model provides a generator, including a housing, an air inlet, a control unit located inside the housing at the air inlet, an engine inside the housing, a starter motor connected to the outside of the engine, a relay electrically connected between the starter motor and the control unit, and the relay and the starter motor being separately configured.

[0007] The beneficial effects of this basic solution are as follows: by separating the relay from the starter motor, the relay is kept away from the engine, thereby reducing the impact of engine heat on the relay. This reduces the phenomenon of the starter motor failing to work properly due to overheating of the relay, and improves the reliability of the generator.

[0008] Preferably, the relay is located on the side of the housing where the air inlet is located. This arrangement utilizes the relatively lower temperature on the side of the housing where the air inlet is located, allowing for better heat dissipation of the relay. This reduces the likelihood of relay malfunction due to overheating and improves the operational stability of the generator.

[0009] Preferably, the relay is located below the control unit. This arrangement utilizes the principle that heated air is relatively light, causing the heated air to rise rapidly, thus improving the relay's heat dissipation and consequently enhancing the generator's operational stability.

[0010] Preferably, the relay is located on the side of the control unit closer to the engine. This arrangement allows for smooth routing of the wires connecting the relay to both the control unit and the starter motor, facilitating assembly and maintenance, and reducing wiring costs.

[0011] Preferably, the control unit includes a vertically arranged heat sink, which is positioned directly opposite the air inlet. This arrangement allows the airflow entering the housing from the air inlet to be guided vertically by the heat sink, thus improving the heat dissipation of the relay and enhancing the generator's operational stability.

[0012] This utility model has the following beneficial effects: Compared to existing technologies, this solution features a separate relay and starter motor design, placing the relay away from the engine. This reduces the impact of engine heat on the relay, especially when the relay is positioned on the air intake side of the housing. The resulting heat load on the relay is even weaker, significantly reducing the likelihood of overheating and affecting the normal operation of the starter motor, thus improving generator stability. The relay's proximity to the control unit allows for a substantial reduction in the length of the wiring harness connecting the relay and control unit. While the length of the wire connecting the relay and starter motor increases, the wiring harness between the relay and control unit consists of multiple wires, whereas the wire between the relay and starter motor is a single wire. Therefore, the overall length of the wire connected to the relay is reduced, saving on wiring costs and simplifying wiring layout, thus reducing assembly difficulty. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of an embodiment of a generator according to the present invention. Detailed Implementation

[0014] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: housing 1, engine 2, starter motor 3, control unit 4, air intake 5, relay 6, and heat sink 7.

[0015] The basic implementation examples are as follows: Figure 1 As shown: A generator includes a housing 1 with an air inlet 5, allowing outside air to enter the housing 1. A control unit 4 is located inside the housing 1 at the air inlet 5. The control unit 4 includes vertically arranged heat sinks 7, which are positioned directly opposite the air inlet 5, allowing the control unit 4 to dissipate heat and preventing overheating of its electronic components.

[0016] An engine 2 is housed inside the housing 1, and a starter motor 3 is connected to the outside of the engine 2. A relay 6 is electrically connected between the starter motor 3 and the control unit 4, and the control unit 4 controls the operation of the starter motor 3 through the relay 6. The relay 6 is electrically connected to the control unit 4 through a wiring harness, and to the starter motor 3 through a wire.

[0017] The relay 6 and the starter motor 3 are separately arranged, thus keeping the relay 6 away from the starter motor 3 and, consequently, away from the engine 2, reducing the impact of heat from the engine 2 on the relay 6. In this embodiment, the relay 6 is located on the side of the housing 1 where the air intake 5 is located, allowing the airflow at the air intake 5 to dissipate heat from the relay 6. More preferably, the relay 6 is located below the control unit 4, which further reduces the impact of heat on the relay 6. The relay 6 is located on the side of the control unit 4 closer to the engine 2, making the arrangement of the wiring harness connecting the relay 6 and the control unit 4, as well as the wires connecting the relay 6 and the starter motor 3, more convenient, reducing interference from other components, and facilitating assembly and other operations.

[0018] This design places relay 6 away from engine 2, reducing the impact of engine heat on relay 6. This is especially true when relay 6 is positioned on the side of the housing 1 near the air intake 5, where the heat load on relay 6 is even weaker. This significantly reduces the likelihood of relay 6 overheating and affecting the normal operation of starter motor 3, thus improving generator stability. Placing relay 6 close to control unit 4 allows for a substantial reduction in the length of the wiring harness connecting relay 6 and control unit 4. Although the length of the wire connecting relay 6 and starter motor 3 increases, the wiring harness between relay 6 and control unit 4 consists of multiple wires, while the wire between relay 6 and starter motor 3 is a single wire. Therefore, the overall length of the wire connected to relay 6 is reduced, saving on wiring costs and simplifying wiring layout, thus reducing assembly difficulty.

[0019] The above description is merely an embodiment of this utility model, and common knowledge such as specific structures and characteristics of the solution is not described in detail here. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model, and these should also be considered within the protection scope of this utility model. These modifications and improvements will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A generator, comprising a housing, wherein the housing is provided with an air inlet, a control unit is disposed inside the housing at the air inlet, an engine is disposed inside the housing, a starter motor is connected to the outside of the engine, and a relay is electrically connected between the starter motor and the control unit, characterized in that: The relay and the starter motor are separate components.

2. A generator according to claim 1, characterized in that: The relay is located on the side of the housing where the air inlet is located.

3. A generator according to claim 2, characterized in that: The relay is located on the lower side of the control unit.

4. A generator according to claim 3, characterized in that: The relay is located on the side of the control unit closer to the engine.

5. A generator according to claim 4, characterized in that: The control unit includes a vertically arranged heat sink, which is positioned directly opposite the air inlet.

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