Generator

Abstract

The utility model discloses a generator which comprises an engine, a spark plug and an inductive switch, the spark plug is installed on the engine, the inductive switch is installed in a power supply circuit of the spark plug, when the temperature of the engine is too high, the inductive switch cuts off power supply of the spark plug, and the generator flames out; when the engine temperature is normal, the inductive switch controls the spark plug to be powered on. Power supply of the spark plug can be cut off at high temperature, automatic flameout operation of the generator is achieved, the problem that the generator is damaged due to high temperature can be avoided, and when the temperature of the generator falls back to normal temperature, the inductive switch controls the spark plug to be powered on, and the generator is in a normal working state. The problem that the generator is damaged due to high temperature can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to a generator, in particular to a generator which automatically shuts down at high temperature. Background Art

[0002] The car generator is the main power source of the car. Its function is to supply power to all electrical devices (except the starter) and charge the battery when the engine is running normally. The spark plug is an important component of the gasoline engine ignition system. It can introduce high voltage electricity into the combustion chamber and make it jump over the electrode gap to generate sparks, thereby igniting the combustible mixture in the cylinder. During the use of the generator, since many internal parts will generate heat, the internal temperature of the generator will gradually increase, resulting in a high temperature environment, which will affect the use of internal parts and even cause them to burn out.

[0003] Chinese patent document CN220748441U discloses a high-voltage ignition device capable of automatic voltage division and temperature reduction, comprising a generator battery, an automatic switching device, a distributor, a high-voltage package, and a spark plug; the automatic switching device comprises a voltage-limiting resistor, a parallel control switch, and a signal identification transmitter, the signal identification transmitter is electrically connected to a temperature sensor, the signal identification transmitter is electrically connected to the parallel control switch, the voltage-limiting resistor is electrically connected to the generator battery, the voltage-limiting resistor is electrically connected to the distributor, the distributor is electrically connected to the high-voltage package, the high-voltage package is electrically connected to the spark plug, and the parallel control switch is connected in parallel to the voltage-limiting resistor. The utility model senses the water temperature through a temperature sensor and transmits the information to the signal identification transmitter. When the water temperature is higher than the set value, the signal identification transmitter sends a closing signal to disconnect the parallel control switch, so that the current can only flow through the voltage-limiting resistor, thereby achieving voltage division, thereby reducing the ignition voltage, and avoiding excessive water temperature by reducing the voltage, thereby ensuring normal operation. In the prior art, the automatic switching device is set to divide the voltage at high temperature to reduce the ignition voltage and ensure the normal operation of the generator. However, in the prior art, although the temperature can be lowered after the voltage is divided at high temperature, the components will still be damaged because the generator is always in operation. Utility Model Content

[0004] The utility model is to solve the technical problem of high temperature damage of the generator in the prior art, and provides a generator, comprising an engine, a spark plug and an induction switch, wherein the spark plug is installed on the engine, and the induction switch is installed in the power supply circuit of the spark plug, wherein: when the engine temperature is too high, the induction switch cuts off the power supply of the spark plug and the generator is shut down; when the engine temperature is normal, the induction switch switches the spark plug to be energized.

[0005] In the prior art, although the ignition voltage can be reduced due to the voltage division method, the generator is always in operation because the spark plug is still performing the ignition operation, so the generator will still be in high temperature, resulting in damage to the internal parts of the generator. In this solution, when the temperature is high, the induction switch controls the spark plug to cut off the power, so the spark plug will no longer perform the ignition operation, the generator will shut down and no longer run, which can avoid the problem of damage to the generator due to high temperature, and when the temperature of the generator drops back to normal temperature, the induction switch controls the spark plug to be energized, so the spark plug can work normally again, that is, in this solution, the generator will automatically shut down when the temperature is high, and when the temperature of the generator is normal, it is in a state where it can work normally, so it can effectively avoid the problem of damage to the generator due to high temperature.

[0006] Preferably, the induction switch is a temperature-controlled induction switch. When the engine temperature is too high, the induction switch is in an open state, and the power supply circuit of the spark plug is disconnected. When the engine temperature is normal, the induction switch is in a closed state, and the power supply circuit of the spark plug is connected. In this solution, the temperature-controlled induction switch is selected as the induction switch for controlling the on and off of the spark plug. The on and off state of the spark plug can be switched directly by sensing the internal temperature of the generator, and the generator can be shut down more quickly. By executing the generator shutoff operation in a timely manner, the problem of damage to the generator due to high temperature can be more effectively avoided.

[0007] Preferably, the induction switch is a temperature switch in a normally closed state.

[0008] Preferably, the induction switch is provided with an elastic sheet, which triggers the induction switch to change from a closed state to an open state when the temperature is too high, and triggers the induction switch to change back to a closed state when the temperature is normal.

[0009] Preferably, the elastic sheet is a bimetallic sheet.

[0010] The utility model has the following beneficial effects:

[0011] 1. The utility model can cut off the power supply of the spark plug at high temperature, realize the automatic flameout operation of the generator, and can avoid the problem of damage to the generator due to high temperature. When the temperature of the generator drops back to normal temperature, the induction switch controls the spark plug to be energized, and the generator is in a state of normal operation, which can effectively avoid the problem of damage to the generator due to high temperature.

[0012] 2. The utility model selects a temperature-controlled induction switch as the induction switch for controlling the on and off of the spark plug, which can directly control the on and off of the spark plug by sensing the internal temperature of the generator, and can more quickly realize the flameout operation of the generator. By executing the flameout operation of the generator in time, it can more effectively avoid the problem of damage to the generator due to high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] The following is further described in detail through specific implementation methods:

[0015] 1. Definition

[0016] Temperature switch: A temperature switch that uses a bimetallic strip as a temperature sensing element. When the appliance is working normally, the bimetallic strip is in a free state and the contacts are in a closed / open state. When the temperature rises to the operating temperature value, the bimetallic element is heated to generate internal stress and quickly operates, opening / closing the contacts and cutting off / connecting the circuit, thereby playing a thermal protection role.

[0017] Bimetallic strip: A composite material composed of two or more metals or other materials with suitable properties. Bimetallic strip is also called thermal bimetallic strip. Due to the different thermal expansion coefficients of each component layer, when the temperature changes, the deformation of the active layer is greater than that of the passive layer, so the whole bimetallic strip will bend toward the passive layer, and the curvature of the composite material will change, resulting in deformation.

[0018] 2. The reference numerals in the drawings of the specification include: digital igniter 1, induction switch S1, high-voltage package 2, spark plug 3.

[0019] The embodiment is basically as shown in the attached Figure 1 As shown: a generator includes an engine, a spark plug 3 and an induction switch S1. The spark plug 3 is installed on the engine, the induction switch S1 is installed in the power supply circuit of the spark plug 3, and the spark plug 3 is also connected to a digital igniter 1 and a high-voltage package 2.

[0020] When the engine temperature is too high, the induction switch S1 cuts off the power supply to the spark plug 3, and the generator shuts down; when the engine temperature is normal, the induction switch S1 controls the spark plug 3 to be energized. Specifically, in this embodiment, the induction switch S1 is a temperature-controlled induction switch S1, and the temperature switch is in a normally closed state. When the engine temperature is too high, the induction switch S1 is in an open state, and the power supply circuit of the spark plug 3 is disconnected. When the engine temperature is normal, the induction switch S1 is in a closed state, and the power supply circuit of the spark plug 3 is turned on.

[0021] The induction switch S1 is provided with an elastic sheet. When the temperature is too high, the elastic sheet triggers the induction switch S1 to change from a closed state to an open state. When the temperature is normal, the elastic sheet triggers the induction switch S1 to change back to a closed state. In this embodiment, the elastic sheet is a bimetallic sheet.

[0022] The specific implementation process is as follows: In the initial state, the induction switch S1 is in the normally closed state, and the power supply circuit supplies power to the spark plug 3 normally. When in use, the digital igniter 1 gives a trigger signal, so the spark plug 3 starts to ignite and the generator works. When the internal temperature of the generator is too high, higher than the operating temperature of the elastic sheet, the elastic sheet deforms, triggering the induction switch S1 from the closed state to the open state, the power supply to the spark plug 3 is disconnected, the spark plug 3 stops the ignition operation, and the generator shuts down. After the generator shuts down, the internal temperature of the generator begins to drop. When the internal temperature drops to below the operating temperature of the elastic sheet, the elastic sheet resumes its deformation, triggering the induction switch S1 from the open state to the closed state, the power supply to the spark plug 3 returns to normal, and it can ignite normally under the triggering of the digital igniter 1.

[0023] The above is only an embodiment of the utility model. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, which will not affect the effect of the implementation of the utility model and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to explain the content of the claims.

Claims

1. A generator, comprising an engine, a spark plug and an induction switch, wherein the spark plug is mounted on the engine, and the induction switch is mounted in a power supply circuit of the spark plug, characterized in that: When the temperature of the engine is too high, the induction switch cuts off the power supply to the spark plug and the generator shuts down; when the temperature of the engine is normal, the induction switch controls the spark plug to be energized.

2. The generator according to claim 1, characterized in that: The induction switch is a temperature-controlled induction switch. When the engine temperature is too high, the induction switch is in an open state, and the power supply circuit of the spark plug is disconnected. When the engine temperature is normal, the induction switch is in a closed state, and the power supply circuit of the spark plug is connected.

3. The generator according to claim 2, characterized in that: The induction switch is a temperature switch in a normally closed state.

4. The generator according to claim 3, characterized in that: The induction switch is provided with an elastic sheet, which triggers the induction switch to change from a closed state to an open state when the temperature is too high, and triggers the induction switch to return to a closed state when the temperature is normal.

5. The generator according to claim 4, characterized in that: The elastic sheet is a bimetallic sheet.

Images