Gas nozzle and engine
By introducing a multi-coil electromagnetic control system and a temperature control switch into the gas nozzle, the problem of ice blockage in low-temperature environments was solved, enabling rapid start-up of the gas nozzle and reliable engine operation.
Patent Information
- Application Number
- CN202423194655.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-24
AI Technical Summary
In low temperature environments, the gas nozzle is prone to ice blockage, making it difficult to open and affecting engine starting.
A gas nozzle design is adopted, including a housing, a coil assembly, a fixed iron core, and a moving iron core. The movement of the moving iron core is controlled by an electromagnetic field. The multi-coil structure enhances the magnetic force in low-temperature environments to break through ice blockages. The design uses a temperature control switch to automatically adjust the coil connection to ensure that the nozzle works normally at different temperatures.
This technology enables rapid start-up of the gas nozzle in low-temperature environments, eliminating the need for manual heating and improving the reliability and convenience of engine starting.
Smart Images
Figure CN223469346U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of engine, concretely relates to a gas nozzle and engine. BACKGROUND
[0002] The gas nozzle is the core component of the engine, and its main function is to spray gas into the combustion chamber. The performance of the gas nozzle has a crucial influence on the engine. In a low-temperature environment, the nozzle is prone to ice blockage, which will cause the nozzle to be difficult to open, thereby affecting the operation of the engine.
[0003] When the user encounters this problem, the user usually needs to use hot water to heat the nozzle before starting the engine, and the ice in the nozzle is melted. This method brings great inconvenience to the user and seriously affects the promotion of gas vehicles in cold regions.
[0004] Therefore, a gas nozzle and engine capable of being quickly started in a low-temperature environment are further proposed to solve the above problems. SUMMARY
[0005] The utility model aims at at least solve the problem that the gas nozzle is difficult to open due to ice blockage. The purpose is realized by the following technical scheme:
[0006] The first aspect of the utility model proposes a gas nozzle, comprising:
[0007] The shell has an air inlet and an air outlet, and the inside of the shell is provided with a coil assembly, a fixed iron core and a movable iron core. The coil assembly includes a first coil and a second coil, and the first coil and the second coil are arranged along the axial direction of the shell. The first coil is used for electrically connected with a driving circuit, and the second coil is selectively electrically connected with the driving circuit or disconnected. The fixed iron core and the movable iron core are arranged in the annular space of the coil assembly. One end of the fixed iron core is communicated with the air inlet, and the other end is communicated with the movable iron core. The movable iron core is located between the fixed iron core and the air outlet.
[0008] When the coil assembly is disconnected, the movable iron core can move away from the fixed iron core and block the air outlet. When the coil assembly is connected, the movable iron core can move towards the fixed iron core, so that the air outlet is opened.
[0009] By using the gas nozzle in the technical solution, at the time of starting, gas enters the inside of the shell from the gas inlet of the shell and is sprayed from the gas outlet. At a temperature condition where icing does not occur, the driving circuit and the first coil are in conductive connection, the first coil is electrified to generate an electromagnetic field, so that the moving iron core approaches the fixed iron core, thereby the gas outlet is opened, and gas can be sprayed from the gas outlet. When the external environment temperature is low and icing risk exists, the driving circuit drives the first coil and the second coil to be in conductive connection, because the second coil is added, the number of turns of the electrified coil is equivalent to being increased, thereby the magnetic flux in the middle part of the coil assembly is increased, the magnetic force between the fixed iron core and the moving iron core is increased, so that the blockage of ice stubble can be broken through, and the gas nozzle is smoothly opened. Therefore, the gas nozzle provided by the technical solution can effectively solve the problem of difficulty in opening the gas outlet caused by the blockage of ice stubble.
[0010] In addition, the gas nozzle of the utility model further has the following additional technical features:
[0011] In some embodiments of the utility model, a cold start switch is arranged between the second coil and the first coil, the second coil and the first coil are in conductive connection when the cold start switch is closed, and the cold start switch is configured to be closed or opened according to the external environment temperature.
[0012] In some embodiments of the utility model, the cold start switch is a temperature control switch.
[0013] In some embodiments of the utility model, the first coil is connected with a wiring terminal, and the wiring terminal is used to be connected with the driving circuit.
[0014] In some embodiments of the utility model, a connecting part is arranged on the shell, the wiring terminal is arranged in the connecting part, and the connecting part is used to be connected with external components.
[0015] In some embodiments of the utility model, the fixed iron core and the moving iron core are connected through a spring, and the moving iron core can move away from the fixed iron core under the action of the restoring force of the spring when the coil assembly is de-energized.
[0016] In some embodiments of the utility model, one end of the moving iron core away from the fixed iron core is provided with a sealing lip, the sealing lip is provided with a first gas outlet hole, the first gas outlet hole is communicated with the gas outlet, and a sealing gasket is arranged between the sealing lip and the moving iron core, and the sealing gasket is used to seal the first gas outlet hole.
[0017] In some embodiments of the utility model, the sealing gasket is provided with a second air outlet hole communicated with the air inlet, when the moving iron core is away from the sealing gasket, the second air outlet hole and the first air outlet hole are communicated, when the moving iron core is pressed on the sealing gasket, the sealing gasket blocks the first air outlet hole.
[0018] In some embodiments of the utility model, the sealing lip comprises a lip main body and a plurality of concentric annular protrusions arranged on the lip main body, the top of the annular protrusion is used for sealing contact with the sealing gasket, and the first air outlet hole is arranged on the lip main body and located between two adjacent annular protrusions.
[0019] The utility model also provides an engine, which comprises the combustion chamber in the above-mentioned embodiments and the gas nozzle in the above-mentioned technical scheme, and the gas nozzle is used for spraying gas into the interior of the combustion chamber. BRIEF DESCRIPTION OF DRAWINGS
[0020] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The detailed description is made with reference to the accompanying drawings.
[0021] Figure 1 A partial structure sectional view of the gas nozzle according to the embodiments of the utility model is schematically shown;
[0022] Figure 2 A partial structure view of the gas nozzle according to the embodiments of the utility model is schematically shown;
[0023] Figure 3 A structure view of the shell according to the embodiments of the utility model is schematically shown.
[0024] The reference signs in the drawings represent the following:
[0025] 100, shell; 101, air inlet; 102, air outlet; 110, upper shell; 120, valve seat; 130, connecting part; 200, coil assembly; 210, first coil; 220, second coil; 230, cold start switch; 300, fixed iron core; 400, moving iron core; 500, spring; 600, sealing lip; 610, lip main body; 611, first air outlet hole; 620, annular protrusion; 700, sealing gasket; 701, second air outlet hole; 800, jet orifice plate. DETAILED DESCRIPTION
[0026] Example embodiments of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings. While example embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.
[0027] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order dependent step. It is also to be understood that additional or alternative steps can be employed.
[0028] Although the terms first, second, third, and the like can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first", "second", and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
[0029] Spatially relative terms, such as "inner", "outer", "inward", "outward", "lower", "bottom", "top", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Spatially relative terms can be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
[0030] Figure 1A partial structure sectional view of a gas nozzle according to the embodiment of the present application is schematically shown. Figure 1 The utility model provides a kind of gas nozzle, including shell 100, shell 100 has air inlet 101 and gas outlet 102, the inside of shell 100 is provided with coil assembly 200, fixed iron core 300 and moving iron core 400, coil assembly 200 includes first coil 210 and second coil 220, first coil 210 and second coil 220 are along the axial setting of shell 100, first coil 210 is used to be electrically connected with drive circuit, second coil 220 is set to selectively with drive circuit electrically connected or power-off setting, fixed iron core 300 and moving iron core 400 are arranged in the annular space of coil assembly 200, one end of fixed iron core 300 and air inlet 101 communication, the other end and moving iron core 400 communication, moving iron core 400 is located between fixed iron core 300 and gas outlet 102;When coil assembly 200 power-off, moving iron core 400 can be away from fixed iron core 300 and block up gas outlet 102;When coil assembly 200 power-on, moving iron core 400 can be moved to the direction close to fixed iron core 300, so that gas outlet 102 opens.
[0031] By using the gas nozzle in the present technical solution, when starting, gas enters the inside of shell 100 from air inlet 101 of shell 100 and is sprayed from gas outlet 102. Under the temperature condition that icing does not occur, drive circuit and first coil 210 are electrically connected, first coil 210 is powered on to generate electromagnetic field, so that moving iron core 400 is close to fixed iron core 300, so that gas outlet 102 is opened, and gas can be sprayed from gas outlet 102. When the external environment temperature is low and there is a risk of icing, drive circuit drives first coil 210 and second coil 220 to be electrically connected. Since second coil 220 is added, the number of turns of the powered coil is equivalent to being increased, so that the magnetic flux in the middle part of coil assembly 200 is increased, and the magnetic force between fixed iron core 300 and moving iron core 400 is increased, so that the blockage of ice stubble can be broken through, so that the gas nozzle is successfully opened. Therefore, the gas nozzle provided by the present technical solution can effectively solve the problem of difficulty in opening gas outlet 102 due to the blockage of ice stubble.
[0032] Optionally, the drive circuit includes a power supply and a switch, the power supply is used to power coil assembly 200, and the switch is used to control the on-off of the circuit.
[0033] Further, a cold start switch 230 is arranged between second coil 220 and first coil 210, second coil 220 and first coil 210 are electrically connected when cold start switch 230 is closed, and cold start switch 230 is configured to be closed or opened according to the external environment temperature.
[0034] It can be understood that in the case that the external environment temperature does not cause icing phenomenon, the driving circuit and the first coil 210 are connected when starting the gas nozzle, the first coil 210 generates electromagnetic force after being powered on, the moving iron core 400 is attracted to move away from the static iron core, and the gas flows out of the gas outlet 102 after the moving iron core 400 moves away from the gas outlet 102. When the external environment temperature is low and easy to cause icing phenomenon, the cold start switch 230 connects the first coil 210 and the second coil 220, at this time, when the gas nozzle is started, the first coil 210 and the second coil 220 are connected with the driving circuit, and because the number of turns of the coil is increased, a greater electromagnetic force is generated, so that the moving iron core 400 obtains greater power, and the moving iron core 400 can more easily move to the static iron core 300. Exemplarily, when the external environment temperature is greater than zero, the cold start switch 230 is in an open state, and the electromagnetic force is generated by the first coil 210; when the external environment temperature is less than zero, the cold start switch 230 is closed, and the electromagnetic force is generated by the first coil 210 and the second coil 220.
[0035] Further, the cold start switch 230 is a temperature control switch.
[0036] The temperature control switch is a temperature control element that controls the on-off of the circuit by sensing temperature changes. It usually uses a bimetallic strip as a temperature sensing element, which will deform due to thermal expansion and contraction when the temperature reaches a set value, thereby triggering the on-off action of the circuit. The second coil 220 and the driving circuit can be conveniently controlled by the temperature control switch, without the need for manual operation, and the temperature control switch is sensitive and can accurately respond to changes in the external environment.
[0037] Further, the first coil 210 is connected with a terminal, and the terminal is used to connect with the driving circuit.
[0038] The terminal is provided with two, and the two terminals are connected with the positive and negative poles of the coil assembly 200, respectively. Optionally, the winding of the coil uses single-strand silk or multi-strand silk, and the lead-out wires of the winding are welded to the two terminals, respectively.
[0039] Further, the static iron core 300 and the moving iron core 400 are connected through a spring 500, and when the coil assembly 200 is powered off, the moving iron core 400 can move away from the static iron core 300 under the action of the restoring force of the spring 500.
[0040] When the coil assembly 200 is powered on by the driving circuit, the moving iron core 400 is attracted, moves to the top in the direction of the compression spring 500, the fixed iron core 300 contacts the fixed iron core 300, and the attraction process is realized. When the coil assembly 200 is powered off by the driving circuit, the moving iron core 400 moves to the bottom in the direction of the gas outlet 102 under the action of the restoring force of the spring 500, the moving iron core 400 blocks the gas outlet 102, and the closing process of the gas nozzle is realized.
[0041] Further, Figure 2 The partial structure diagram of the gas nozzle according to the embodiment of the utility model is schematically shown. Referring to Figure 2 The end of the moving iron core 400 away from the fixed iron core 300 is provided with a sealing lip 600, the sealing lip 600 is provided with a first gas outlet hole 611, the first gas outlet hole 611 and the gas outlet 102 are communicated, and the sealing gasket 700 is arranged between the sealing lip 600 and the moving iron core 400, and the sealing gasket 700 is used for sealing the first gas outlet hole 611.
[0042] Optionally, the sealing gasket 700 can be a rubber gasket, the rubber gasket has good elasticity and wear resistance, and can effectively guarantee the sealing property and the service life of the gas nozzle. Understandably, when the moving iron core 400 is pressed on the sealing gasket 700 under the action of the restoring force of the spring 500, the first gas outlet hole 611 is blocked, and the gas cannot flow out of the gas outlet 102; when the moving iron core 400 leaves the sealing gasket 700 under the action of the electromagnetic force, a gap is generated between the sealing gasket 700 and the sealing lip 600, so that the gas can enter the gap and flow out through the first gas outlet hole 611 and the gas outlet 102.
[0043] Further, the sealing gasket 700 is provided with a second gas outlet hole 701 communicated with the gas inlet 101, the second gas outlet hole 701 and the first gas outlet hole 611 are communicated when the moving iron core 400 leaves the sealing gasket 700, and the sealing gasket 700 blocks the first gas outlet hole 611 when the moving iron core 400 is pressed on the sealing gasket 700. Understandably, the fixed iron core 300 and the moving iron core 400 are hollow inside, so that the second gas outlet hole 701 can be communicated with the gas inlet 101.
[0044] Optionally, the second gas outlet hole 701 is located at the center position of the sealing gasket 700, and the first gas outlet hole 611 is arranged away from the second gas outlet hole 701, so that the gas cannot flow out through the first gas outlet hole 611 when the sealing gasket 700 is pressed by the moving iron core 400.
[0045] Further, continuing to refer to Figure 2The sealing lip 600 comprises a lip body 610 and a plurality of concentric annular protrusions 620 arranged on the lip body 610, the top of the annular protrusions 620 is used for sealing contact with the sealing gasket 700, and the first air outlet hole 611 is arranged on the lip body 610 and located between two adjacent annular protrusions 620.
[0046] In the embodiment, the number of the annular protrusions 620 is three, and in other embodiments, the number of the annular protrusions 620 can also be two, four or five, etc., which is arranged according to the use requirement. It can be understood that the first air outlet hole 611 is located between two adjacent annular protrusions 620, so that the first air outlet hole 611 can be effectively blocked when the sealing gasket 700 is pressed on the sealing lip 600. Optionally, the outer diameter of the annular protrusion 620 gradually decreases from the bottom to the top, so as to ensure that the top of the annular protrusion 620 and the sealing gasket 700 can be in good contact, thereby ensuring good sealing effect. Optionally, from the center to the edge direction of the sealing lip 600, the outer diameter of the annular protrusion 620 gradually increases, and the interval between adjacent annular protrusions 620 gradually increases. By adopting this structure, on the one hand, the sealing performance can be effectively guaranteed, and on the other hand, the uniformity of air outlet can be improved. Optionally, in order to further improve the uniformity of air outlet, the diameter of the first air outlet hole 611 can be arranged in the form of gradually increasing from the center to the edge direction of the sealing lip 600.
[0047] Figure 3 The structure schematic diagram of the shell 100 according to the embodiment of the utility model is schematically shown. Referring to Figure 3 The shell 100 is provided with a connecting part 130, the wiring terminal is arranged in the connecting part 130, and the connecting part 130 is used for connecting with external components.
[0048] Optionally, the connecting mode of the connecting part 130 and the external components can be plug-in. When assembling, the wiring terminal is connected with the driving circuit first, and then the connecting part 130 is connected with the external components in a plug-in mode, so that the connection is convenient and reliable. Optionally, the connecting mode between the wiring terminal and the driving circuit can be welding.
[0049] Further, the shell 100 comprises an upper shell 110 and a valve seat 120, and the upper shell 110 is connected with the valve seat 120. The air inlet 101 is located at the top of the upper shell 110, the air outlet 102 is located at the bottom of the valve seat 120, and the connecting part 130 is arranged on the upper shell 110. The coil assembly 200 and the fixed iron core 300 are arranged inside the upper shell 110, and the movable iron core 400 can move along the axial direction of the valve seat 120.
[0050] Further, the bottom of the sealing lip 600 is provided with a spray hole plate 800. The spray hole plate 800 is provided with a through hole corresponding to the first air outlet hole 611. The spray hole plate 800 plays a supporting role for the sealing lip 600.
[0051] The technical scheme further provides an engine comprising a combustion chamber and the gas nozzle.
[0052] By using the engine in the technical scheme, only the first coil 210 and the driving circuit are connected under the temperature condition that the gas nozzle does not freeze, and energy consumption is reduced. In the case that the external environment temperature is low, the first coil 210 and the second coil 220 in the coil assembly 200 are both in communication with the driving circuit, so that a larger magnetic flux can be generated, the moving iron core 400 obtains more power, can resist the block of the ice stub, and moves to the direction of the fixed iron core 300, so as to open the gas outlet 102, so that the gas can smoothly enter the inside of the combustion chamber. Therefore, the engine provided by the technical scheme can be started smoothly in the low temperature environment.
[0053] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A gas burner, characterized in that The application relates to a shell (100) with an air inlet (101) and an air outlet (102), wherein the inside of the shell (100) is provided with a coil assembly (200), a fixed iron core (300) and a movable iron core (400), the coil assembly (200) comprises a first coil (210) and a second coil (220), the first coil (210) and the second coil (220) are arranged along the axial direction of the shell (100), the first coil (210) is used for electrically connecting with a driving circuit, the second coil (220) is arranged to be selectively electrically connected with the driving circuit or disconnected, the fixed iron core (300) and the movable iron core (400) are arranged in the annular space of the coil assembly (200), one end of the fixed iron core (300) is communicated with the air inlet (101), the other end is communicated with the movable iron core (400), and the movable iron core (400) is located between the fixed iron core (300) and the air outlet (102). When the coil assembly (200) is disconnected, the movable iron core (400) can move away from the fixed iron core (300) and block the air outlet (102); when the coil assembly (200) is connected, the movable iron core (400) can move towards the fixed iron core (300) and open the air outlet (102).
2. Gas burner according to claim 1, characterized in that A cold start switch (230) is arranged between the second coil (220) and the first coil (210), the second coil (220) and the first coil (210) are electrically connected when the cold start switch (230) is closed, and the cold start switch (230) is configured to be closed or disconnected according to the external environment temperature.
3. Gas burner according to claim 2, characterized in that The cold start switch (230) is a temperature control switch.
4. The gas injector of claim 1, wherein, The first coil (210) is connected with a wiring terminal, and the wiring terminal is used for connecting with the driving circuit.
5. The gas jet of claim 4, wherein A connecting part (130) is arranged on the shell (100), the wiring terminal is arranged in the connecting part (130), and the connecting part (130) is used for connecting with external components.
6. Gas burner according to any one of claims 1-5, characterized in that The fixed iron core (300) and the movable iron core (400) are connected through a spring (500), and the movable iron core (400) can move away from the fixed iron core (300) under the restoring force of the spring (500) when the coil assembly (200) is disconnected.
7. Gas burner according to any one of claims 1-5, characterized in that One end of the movable iron core (400) away from the fixed iron core (300) is provided with a sealing lip (600), the sealing lip (600) is provided with a first air outlet hole (611), the first air outlet hole (611) is communicated with the air outlet (102), a sealing gasket (700) is arranged between the sealing lip (600) and the movable iron core (400), and the sealing gasket (700) is used for sealing the first air outlet hole (611).
8. Gas burner according to claim 7, characterized in that A second air outlet hole (701) is arranged on the sealing gasket (700) and communicates with the air inlet (101). When the moving iron core (400) is away from the sealing gasket (700), the second air outlet hole (701) communicates with the first air outlet hole (611). When the moving iron core (400) is pressed on the sealing gasket (700), the sealing gasket (700) blocks the first air outlet hole (611).
9. The gas jet of claim 8, wherein, The sealing lip (600) comprises a lip body (610) and a plurality of concentric annular protrusions (620) arranged on the lip body (610). The top of the annular protrusion (620) is used for sealing contact with the sealing gasket (700). The first air outlet hole (611) is arranged on the lip body (610) and located between two adjacent annular protrusions (620).
10. An engine characterized by, A gas nozzle according to any one of claims 1-9 for injecting gas into the interior of a combustion chamber.