Novel glow plug

Abstract

The utility model discloses a novel glow plug applied to the field of electric heating devices, which comprises an insulating sleeve shell, the top of the inner wall of the insulating sleeve shell is in threaded connection with an upper sealing assembly, the bottom of the inner wall of the insulating sleeve shell is in threaded connection with a lower sealing assembly, and a heating wire is mounted at the center of the lower sealing assembly. An electric control assembly is connected between the upper sealing assembly and the lower sealing assembly, and one end of the electric control assembly penetrates through the lower sealing assembly and is connected with the electric heating wire. Fuel oil can be preheated through the arranged electric heating wire, current flowing to the electric heating wire can be automatically cut off through the time delay relay after the fuel oil is heated for a period of time, fuel oil overheating and energy waste are avoided, the temperature of the electric heating wire can be monitored through the arranged temperature sensor, and when the temperature of the electric heating wire is too high, the electric heating wire is turned off. The temperature sensor cuts off current flowing to the electric heating wire through the time delay relay, the current is cut off in time to avoid overheating of the electric heating wire, and the interior of the insulating sleeve shell is sealed through the upper sealing assembly and the lower sealing assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heating devices, in particular to a novel glow plug. Background Art

[0002] A glow plug, also known as a preheating plug, is an electric heating device that provides heat energy to improve starting performance when a diesel engine is cold during severe cold weather. It requires the ability to quickly heat up and maintain a high temperature over time. By heating with an electric current, the glow plug can heat the surrounding air or fuel to a higher temperature, thereby improving fuel ignition performance, making the fuel easier to burn, and increasing starting reliability and efficiency.

[0003] Common glow plugs are generally not equipped with built-in delay relays, making it difficult to automatically turn off the glow plugs after heating for a certain period of time. If the operator forgets to turn off the glow plugs, the long-term heating of the glow plugs may easily cause the fuel to overheat and waste energy. Therefore, a new type of glow plug is needed to solve the above problems. Utility Model Content

[0004] The purpose of the present utility model is to provide a new type of electric glow plug to solve the problem raised in the above background technology: common electric glow plugs are generally not provided with a built-in delay relay, which makes it difficult to automatically turn off the electric glow plug after heating for a certain period of time. If the operator forgets to turn off the electric glow plug, the long-term heating of the electric glow plug may easily cause the fuel to overheat and waste energy.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a novel electric glow plug, comprising an insulating shell, wherein the top of the inner wall of the insulating shell is threadedly connected to an upper closing component, the bottom of the inner wall of the insulating shell is threadedly connected to a lower closing component, a heating wire is installed at the center of the lower closing component, an electric control component is connected between the upper closing component and the lower closing component, one end of the electric control component passes through the lower closing component and is connected to the heating wire.

[0006] Preferably, the upper closing component includes a wiring nut, an upper sealing screw is fixedly provided on the lower surface of the wiring nut, the upper sealing screw is threadedly connected to the top of the inner wall of the insulating shell, and an upper sealing gasket is sleeved between the upper sealing screw and the wiring nut.

[0007] Preferably, the lower sealing component includes an insulating pad, a lower sealing screw is fixedly provided on the bottom of the outer side of the insulating pad, the lower sealing screw is threadedly connected to the bottom of the inner wall of the insulating shell, and a lower sealing gasket is sleeved between the lower sealing screw and the insulating pad.

[0008] Preferably, the electric control assembly includes a central guide rod, one end of which passes through the upper sealing screw ring and is connected to the wiring nut.

[0009] Preferably, a time delay relay is installed at the other end of the central guide rod, one end of the time delay relay is connected to the heating wire through the connecting guide rod, and a temperature sensor is installed on the upper surface of the thermal insulation pad.

[0010] Preferably, the detection end of the temperature sensor passes through the thermal insulation pad and contacts the heating wire, and one end of the temperature sensor is connected to the time delay relay. The purpose of this setting is: the fuel can be preheated by the heating wire, and the current flowing to the heating wire can be automatically disconnected by the time delay relay after the fuel is heated for a period of time, thereby avoiding fuel overheating and energy waste, and the temperature of the heating wire can be monitored by the temperature sensor. When the temperature of the heating wire is too high, the temperature sensor disconnects the current flowing to the heating wire through the time delay relay, and the current is cut off in time to avoid overheating of the heating wire.

[0011] The technical effects and advantages of this utility model are:

[0012] (1) This device can preheat the fuel oil by means of a heating wire, and can automatically cut off the current flowing to the heating wire through a time delay relay after the fuel oil has been heated for a period of time, thereby avoiding overheating of the fuel oil and waste of energy. In addition, the temperature of the heating wire can be monitored by means of a temperature sensor. When the temperature of the heating wire is too high, the temperature sensor cuts off the current flowing to the heating wire through a time delay relay, thereby timely cutting off the current and avoiding overheating of the heating wire. This solves the problem that common glow plugs are generally not provided with a built-in time delay relay, making it difficult to automatically turn off the glow plugs after heating for a certain period of time. If the operator forgets to turn off the glow plugs, the long-term heating of the glow plugs may easily cause the fuel oil to overheat and waste energy.

[0013] (2) The device seals the interior of the insulating casing by providing an upper sealing component and a lower sealing component to prevent fuel from flowing into the insulating casing. The upper sealing gasket and the lower sealing gasket can facilitate the disassembly and assembly of the upper sealing component and the lower sealing component with the insulating casing, and facilitate the removal of the electronic control component for inspection and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the connection structure between the upper closing component and the lower closing component in the utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the upper closed component and the electronic control component in the utility model.

[0017] In the figure: 1. Insulating housing; 2. Upper closing assembly; 201. Wiring nut; 202. Upper sealing screw; 203. Upper sealing gasket; 3. Heating wire; 4. Lower closing assembly; 401. Insulating pad; 402. Lower sealing screw; 403. Lower sealing gasket; 5. Electronic control assembly; 501. Center guide rod; 502. Time delay relay; 503. Connecting guide rod; 504. Temperature sensor. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] The utility model provides Figure 1-3 A novel electric glow plug shown in the figure includes an insulating shell 1, an upper closing component 2 is threadedly connected to the top of the inner wall of the insulating shell 1, and a lower closing component 4 is threadedly connected to the bottom of the inner wall of the insulating shell 1. A heating wire 3 is installed at the center of the lower closing component 4. An electric control component 5 is connected between the upper closing component 2 and the lower closing component 4. One end of the electric control component 5 passes through the lower closing component 4 and is connected to the heating wire 3.

[0020] like Figure 1-3 The new type of electric glow plug shown in the figure has an upper closing component 2 including a wire nut 201, an upper sealing screw 202 fixedly provided on the lower surface of the wire nut 201, the upper sealing screw 202 is threadedly connected to the top of the inner wall of the insulating shell 1, and an upper sealing gasket 203 is sleeved between the upper sealing screw 202 and the wire nut 201. The lower closing component 4 includes a thermal insulation pad 401, a lower sealing screw 402 fixedly provided on the bottom outside the thermal insulation pad 401, the lower sealing screw 402 is threadedly connected to the bottom of the inner wall of the insulating shell 1, and the lower sealing screw 402 is sleeved between the thermal insulation pad 401. A lower sealing gasket 403 is sleeved in between, and the electronic control component 5 includes a central guide rod 501, one end of the central guide rod 501 passes through the upper sealing screw ring 202 and is connected to the wiring nut 201, and a time delay relay 502 is installed on the other end of the central guide rod 501, and one end of the time delay relay 502 is connected to the heating wire 3 through the connecting guide rod 503. A temperature sensor 504 is installed on the upper surface of the thermal insulation pad 401, and the detection end of the temperature sensor 504 passes through the thermal insulation pad 401 and contacts the heating wire 3, and one end of the temperature sensor 504 is connected to the time delay relay 502.

[0021] The working principle of the present invention is as follows: the fuel can be preheated by the heating wire 3, and the current flowing to the heating wire 3 can be automatically disconnected by the time delay relay 502 after the fuel is heated for a period of time, so as to avoid overheating of the fuel and waste of energy, and the temperature of the heating wire 3 can be monitored by the temperature sensor 504. When the temperature of the heating wire 3 is too high, the temperature sensor 504 disconnects the current flowing to the heating wire 3 through the time delay relay 502, and cuts off the current in time to avoid overheating of the heating wire 3. The interior of the insulating shell 1 is sealed by the upper closing component 2 and the lower closing component 4 to avoid fuel from flowing into the interior of the insulating shell 1. The upper sealing gasket 203 and the lower sealing gasket 403 can facilitate the disassembly and assembly of the upper closing component 2 and the lower closing component 4 with the insulating shell 1, and facilitate the removal of the electronic control component 5 for inspection and replacement.

[0022] In the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0023] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can all be customized according to the description and the drawings.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel glow plug, comprising an insulating housing (1), characterized in that: The top of the inner wall of the insulating shell (1) is threadedly connected to an upper closing component (2), the bottom of the inner wall of the insulating shell (1) is threadedly connected to a lower closing component (4), a heating wire (3) is installed at the center of the lower closing component (4), an electric control component (5) is connected between the upper closing component (2) and the lower closing component (4), one end of the electric control component (5) passes through the lower closing component (4) and is connected to the heating wire (3).

2. A novel glow plug according to claim 1, characterized in that: The upper sealing component (2) comprises a wiring nut (201), an upper sealing screw (202) is fixedly provided on the lower surface of the wiring nut (201), the upper sealing screw (202) is threadedly connected to the top of the inner wall of the insulating shell (1), and an upper sealing gasket (203) is sleeved between the upper sealing screw (202) and the wiring nut (201).

3. A novel glow plug according to claim 2, characterized in that: The lower sealing assembly (4) includes a heat insulating pad (401), a lower sealing screw (402) is fixedly provided at the bottom of the outer side of the heat insulating pad (401), the lower sealing screw (402) is threadedly connected to the bottom of the inner wall of the insulating casing (1), and a lower sealing gasket (403) is sleeved between the lower sealing screw (402) and the heat insulating pad (401).

4. A novel glow plug according to claim 3, characterized in that: The electric control assembly (5) comprises a central guide rod (501), one end of which passes through the upper sealing screw ring (202) and is connected to the wiring nut (201).

5. A novel glow plug according to claim 4, characterized in that: A time delay relay (502) is installed at the other end of the central guide rod (501), one end of the time delay relay (502) is connected to the heating wire (3) via a connecting guide rod (503), and a temperature sensor (504) is installed on the upper surface of the thermal insulation pad (401).

6. A novel glow plug according to claim 5, characterized in that: The detection end of the temperature sensor (504) passes through the heat insulation pad (401) and contacts the heating wire (3), and one end of the temperature sensor (504) is connected to the time delay relay (502).

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