Injector and vehicle

Abstract

The present application relates to an ejector and a vehicle. It includes a shell extending in a first direction, a connecting assembly connected to the shell, an air intake assembly, and an ejection assembly connected to the shell by means of the connecting assembly. The shell has an air intake channel, and the air intake channel penetrates the shell in the first direction; the connecting assembly and the shell are surrounded to form an installation space, and the installation space is connected to the air intake channel; the air intake assembly includes a sealing seat and a moving part arranged in the installation space, and the moving part is arranged between the sealing seat and the shell; the ejection assembly includes an air outlet channel, and the air outlet channel is connected to the installation space; the moving part includes a first position and a second position, and the first position is closer to the air intake channel than the second position; when the moving part is in the first position, the air intake channel and the air outlet channel are isolated; when the moving part is in the second position, the air intake channel and the air outlet channel are connected. The present application realizes the opening and closing control of the second channel by the reciprocating movement of the moving part to control the on-off of the gas path, and has a simple structure and low manufacturing difficulty.

Description

Technical Field

[0001] The present application relates to the technical field of automobile power devices, and in particular to an injector and a vehicle. Background Art

[0002] The emission pollution of traditional fuel vehicles is the main source of urban pollution. Using clean fuel vehicles to replace traditional fuel vehicles is one of the important means to reduce urban pollution. In-cylinder gas direct injection vehicles are one of the clean fuel vehicles. Compared with traditional fuel vehicles, the emission pollution is greatly reduced.

[0003] The gas direct injection injector is a key component of the gas direct injection vehicle power unit. It injects gas fuel directly into the combustion chamber while the vehicle is running, and during the injection process, it controls the injection timing and injection metering of the fuel injection and assists in mixing the gas fuel with the air.

[0004] However, the traditional gas cylinder direct injection injector has a complex structure and high technical difficulty. Summary of the invention

[0005] Based on this, it is necessary to provide an injector and a vehicle to address the problems of complex structure and high technical difficulty of traditional gas cylinder direct injection injectors.

[0006] In a first aspect, the present application provides an ejector, which adopts the following technical solution:

[0007] An injector comprises a shell, a connecting assembly, an air intake assembly and an air injection assembly, wherein the shell is extended and arranged along a first direction, an air intake passage is provided in the shell, and the air intake passage penetrates the shell along the first direction; the connecting assembly is connected to the shell, and the connecting assembly and the shell are surrounded to form an installation space, and the installation space is connected to the air intake passage; the air intake assembly comprises a sealing seat and a moving part arranged in the installation space, and the moving part is arranged between the sealing seat and the shell; the air injection assembly is connected to the shell by means of the connecting assembly, and the air injection assembly comprises an air outlet passage, and the air outlet passage is connected to the installation space; wherein the moving part comprises a first position and a second position, and the first position is farther away from the air intake passage than the second position; when the moving part is located at the first position, the moving part abuts against the sealing seat, and the air intake passage is isolated from the air outlet passage; when the moving part is located at the second position, the moving part is separated from the sealing seat, and the air intake passage is connected to the air outlet passage.

[0008] In one embodiment, the movable member has a first channel, which is connected to the air inlet channel; a second channel is defined between the side of the movable member facing away from the air inlet channel and the sealing seat and the inner wall of the installation space; when the movable member is in the first position, the second channel is isolated from the air inlet channel; when the movable member is in the second position, the second channel can be connected to the first channel; the sealing seat has a third channel, which can be connected to the second channel.

[0009] In one embodiment, the installation space includes a first accommodating groove, in the second direction, the size of the first accommodating groove is larger than the size of the air intake passage, and the second direction is perpendicular to the first direction; the air intake assembly also includes a coil portion and an elastic member, the elastic member is arranged in the first accommodating groove, the elastic member abuts between the groove wall of the first accommodating groove and the movable member, the elastic member is configured to be able to retract along the first direction, and the coil portion is sleeved on the outside of the movable member.

[0010] In one of the embodiments, the shell has a second accommodating groove extending along the first direction, and the movable member is movably arranged in the second accommodating groove along the first direction; the air intake assembly also includes a protrusion and a deformation member arranged on the side of the movable member close to the elastic member, the protrusion and the deformation member are respectively connected to the movable member, and in the first direction, the deformation member protrudes toward the elastic member beyond the protrusion, and the deformation members are configured to be able to retract and retract along the first direction.

[0011] In one embodiment, the jet assembly includes a valve body and a needle valve extending along the first direction, the air outlet channel penetrates the valve body along the first direction, and the needle valve is movably arranged in the air outlet channel along the first direction.

[0012] In one embodiment, the jet assembly further includes a guide member disposed in the air outlet channel, the guide member including a guide channel and at least one flow channel, the guide channel and all the flow channels respectively penetrate the guide member along the first direction, and the guide channel and the flow channel are spaced apart in the second direction, and the needle valve can pass through the guide member through the guide channel.

[0013] In one embodiment, the needle valve has a first end and a second end arranged relatively along the first direction, and the second end is closer to the shell than the first end; the injection assembly also includes a sealing member arranged at the first end, and the size of the sealing member in the second direction gradually decreases from the first end to the second end; when the moving member is located at the first position, the sealing member seals the air outlet channel; when the moving member is located at the second position, the sealing member makes the air outlet channel conductive.

[0014] In one of the embodiments, a mounting groove is provided at one end of the valve body close to the second end, and in the second direction, the size of the mounting groove is larger than the size of the air outlet channel; the jet assembly also includes a reset member, a fixing seat and a locking member arranged in the mounting groove, the fixing seat is fixed to the needle valve by means of the locking member, the reset member, the fixing seat and the locking member are respectively and sequentially sleeved on the second end along the first direction, the reset member abuts between the groove wall of the mounting groove and the fixing seat, and the reset member is configured to be able to extend and retract along the first direction.

[0015] In one embodiment, the connecting assembly includes a connecting member and a fastener, the connecting member is arranged between the valve body and the shell, the two ends of the connecting member in the first direction are respectively abutted against the valve body and the shell, the fastener is sleeved on the valve body, the connecting member and the coil part along the first direction, the fastener is connected to the shell, and the installation space is defined between the connecting member, the fastener and the shell.

[0016] In a second aspect, the present application provides a vehicle, which adopts the following technical solution:

[0017] A vehicle comprises the above-mentioned injector.

[0018] The ejector reciprocates between the sealing seat and the housing along the first direction through the moving part to control the opening and closing of the second channel, thereby achieving the purpose of controlling the on-off of the gas path in the housing. The overall structure is simple and the manufacturing difficulty is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a cross-sectional view of the injector of the present application.

[0020] Figure 2 Schematic diagram of a gas flow channel in one embodiment of the present application.

[0021] Figure 3 It is a cross-sectional view of an air intake assembly in one embodiment of the present application.

[0022] Figure 4 It is a cross-sectional view of a valve body in one embodiment of the present application.

[0023] Figure 5 Schematic diagram of a needle valve in one embodiment of the present application.

[0024] Figure 6 It is a schematic diagram of a fixing base in one embodiment of the present application.

[0025] Notes on the attached drawings:

[0026] 1. Shell; 11. Air inlet passage; 12. First receiving groove; 13. Second receiving groove; 3. Connecting assembly; 31. Connecting member; 32. Fastener; 4. Air inlet assembly; 41. Sealing seat; 411. Third passage; 42. Moving member; 421. First passage; 4211. First vent hole; 4212. Second vent hole; 43. Elastic member; 44. Protrusion; 45. Deformable member; 46. Sealing filling member; 47. Protrusion Ring; 48, adjustment gasket; 49, coil part; 5, jet assembly; 51, valve body; 511, air outlet channel; 512, second abutment surface; 513, mounting groove; 52, needle valve; 53, guide member; 531, guide channel; 532, flow channel; 54, sealing member; 541, first abutment surface; 55, reset member; 56, fixing seat; 561, through hole; 57, locking member; 58, stepped shaft; 6, second channel. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0029] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0031] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method. The "first direction" may be the axial direction of the shell, and the "second direction" may be the radial direction of the shell.

[0033] The following is combined with Figure 1-6 The embodiments of the present application are described in further detail.

[0034] See also Figure 1 and Figure 2, an injector, specifically a gas direct injection injector in the embodiment of the present application, is used in a hydrogen engine to provide hydrogen supply to the engine.

[0035] The injector comprises a housing 1, a coil portion 49, a connecting assembly 3, an air intake assembly 4 and an air injection assembly 5. The air injection assembly 5, the air intake assembly 4 and the housing 1 are arranged in sequence along a first direction.

[0036] The connection assembly 3 includes a connection member 31 and a fastener 32. The connection member 31 adopts an annular structure and is sleeved on the housing 1. The fastener 32 adopts a barrel structure and is sleeved on the connection member 31. The fastener 32 and the housing 1 can be fixed by welding. The fastener 32, the connection member 31 and the housing 1 enclose an installation space for the air intake assembly 4 and the jet assembly 5. Among them, the air intake assembly 4 is located on the side of the connection member 31 close to the housing 1, and the jet assembly 5 is located on the side of the connection member 31 away from the housing 1.

[0037] The shell 1 has an air inlet passage 11 therein, and the air inlet passage 11 penetrates the shell 1 along a first direction. The air inlet passage 11 has an air inlet end and an air outlet end relatively arranged along the first direction. During operation of the injector, the gas enters the injector from the air inlet end. The gas in the embodiment of the present application is preferably hydrogen.

[0038] See also Figure 1 and Figure 2 Specifically, the air intake assembly 4 includes a sealing seat 41, a moving member 42, a coil portion 49 and an elastic member 43 arranged in sequence in the installation space along the first direction. Among them, the coil portion 49 is sleeved on the housing 1, and one end of the connecting member 31 abuts against the coil portion 49 to complete the position limitation of the coil portion 49 in the first direction, so that the coil portion 49 will not move abnormally when the injector is working. The moving member 42 is a common armature, and the coil portion 49 in the embodiment of the present application is a common excitation coil, which generates magnetism after power is turned on.

[0039] When the coil part 49 is not energized, the movable member 42 is pressed against the sealing seat 41 by the elastic member 43; when the coil part 49 is energized, magnetism is generated, and the movable member 42 moves toward the air intake end under the adsorption of the coil part 49. During the operation of the ejector, the movable member 42 can reciprocate along the first direction under the joint action of the elastic member 43 and the coil part 49.

[0040] The elastic member 43 in the embodiment of the present application may be a spring. One end of the housing 1 is provided with a first receiving groove 12 for placing the elastic member 43. The first receiving groove 12 extends along the first direction and is connected to the outlet end of the air inlet channel 11. In the present application, the radial dimension of the first receiving groove 12 is greater than the radial dimension of the air inlet channel 11, that is, the connection between the first receiving groove 12 and the air inlet channel 11 forms a "step-like" structure. One end of the elastic member 43 abuts against the groove wall of the first receiving groove 12, and the other end abuts against the moving member 42.

[0041] In addition, a second receiving groove 13 is provided in the shell body 1 at one end of the first receiving groove 12 away from the air intake passage 11, and the movable member 42 is movably installed in the second receiving groove 13 along the first direction. The second receiving groove 13 extends along the first direction and is connected to the end of the first receiving groove 12 away from the air intake passage 11. In the present application, the radial dimension of the second receiving groove 13 is greater than the radial dimension of the first receiving groove 12, and the connection between the second receiving groove 13 and the first receiving groove 12 also forms a "step-like" structure. When the coil part 49 is energized, the movable member 42 moves toward the air intake end under the adsorption action of the coil part 49 until it hits the groove wall of the second receiving groove 13 and abuts against the groove wall of the second receiving groove 13.

[0042] See also Figure 1 and Figure 3 Furthermore, in order to extend the service life of the moving part 42, the present application provides a protrusion 44 and a deformable part 45 on the side of the moving part 42 close to the elastic part 43. The protrusion 44 is integrally formed on the end surface of the moving part 42 facing the elastic part 43, and the deformable part 45 is made of a flexible material, which can be a flexible material such as silicone or rubber, which is not limited here. The deformable part 45 is bonded to the end surface of the moving part 42 facing the elastic part 43.

[0043] Among them, the protrusion 44 and the deformable member 45 are both annular structures. In the first direction, the dimension of the deformable member 45 beyond the end face of the moving member 42 is greater than the dimension of the protrusion 44 beyond the cross section of the moving member 42, that is, when the moving member 42 hits the groove wall of the second accommodating groove 13, the deformable member 45 will first hit the housing 1, and then the deformable member 45 will undergo elastic deformation to buffer a part of the impact force of the moving member 42, and then the moving member 42 continues to move, the protrusion 44 will hit the housing 1, and the moving member 42 stops moving. The protrusion 44 and the deformable member 45 are arranged on the moving member 42 to play a double buffering role, reducing the wear of the moving member 42 itself, thereby extending the service life of the moving member 42.

[0044] See also Figure 2 and Figure 3The movable member 42 has a first channel 421, and the first channel 421 is connected to the outlet end of the inlet channel 11 through the first receiving groove 12 and the second receiving groove 13. The first channel 421 specifically includes a first vent hole 4211 extending along the first direction and a second vent hole 4212 extending along the second direction. The first vent hole 4211 has a first inlet end and a first outlet end arranged relatively along the first direction, and the first inlet end penetrates the end surface of the movable member 42 toward the elastic member 43; the second vent hole 4212 penetrates the movable member 42 along the second direction and is connected to the first outlet end.

[0045] In addition, a second channel 6 is formed between the outer wall of the moving part 42, the end surface of the sealing seat 41 facing the moving part 42, and the inner wall of the connecting part 31. In the embodiment of the present application, the opening and closing state of the second channel 6 is controlled by controlling whether the coil part 49 is energized.

[0046] See also Figures 1 to 3 Specifically, when the coil portion 49 is energized (when the injector is in a working state), the movable member 42 moves toward the air inlet end under the adsorption action of the coil portion 49, and the movable member 42 is separated from the sealing seat 41. At this time, the second channel 6 is in an open state, and the second channel 6 is connected to the first channel 421 through the second air vent 4212; when the coil portion 49 is de-energized (when the injector is in a non-working state), the magnetism disappears, and the movable member 42 moves toward the sealing seat 41 under the pushing action of the elastic member 43 until it abuts against the sealing seat 41, and at this time, the second channel 6 is closed.

[0047] See also Figure 3 Furthermore, in order to enhance the air tightness between the moving member 42 and the sealing seat 41 when the injector is not in operation, a sealing filler 46 is provided at one end of the moving member 42 close to the sealing seat 41 in the embodiment of the present application, a groove for embedding the sealing filler 46 is provided on the end surface of the moving member 42 along the circumferential direction, and a convex ring 47 is integrally formed on the end surface of the sealing seat 41 facing the moving member 42. When the moving member 42 abuts against the sealing seat 41 under the push action of the elastic member 43, the sealing filler 46 also abuts against the end surface of the moving member 42, and the convex ring 47 is embedded in the sealing filler 46 to enhance the air tightness between the moving member 42 and the sealing seat 41.

[0048] See also Figure 2 and Figure 3 In addition, the sealing seat 41 adopts an annular structure, the outer ring of the sealing seat 41 abuts against the inner ring of the connecting member 31, and the inner ring of the sealing seat 41 forms a third channel 411 for gas to pass through, and the third channel 411 is connected to the second channel 6.

[0049] See also Figure 1In addition, the air intake assembly 4 in the present application also includes an adjusting gasket 48, which also adopts an annular structure and is coaxially arranged with the sealing seat 41. The adjusting gasket 48 is located on the side of the sealing seat 41 away from the moving part 42. The end surface of the adjusting gasket 48 away from the sealing seat 41 abuts against the connecting part 31 to achieve control of the stroke of the moving part 42, thereby eliminating the processing dispersion of the moving part 42.

[0050] See also Figure 1 and Figure 2 The jet assembly 5 includes a valve body 51 and a needle valve 52 extending along a first direction. The valve body 51 is provided with an outlet channel 511 connected to the third channel 411. The outlet channel 511 extends along the first direction and penetrates the valve body 51. The needle valve 52 is movably arranged in the outlet channel 511 along the first direction. The needle valve 52 is configured to be able to reciprocate along the first direction. A gap is left between the side wall of the needle valve 52 and the inner wall of the outlet channel 511 for gas circulation.

[0051] See also Figure 1 and Figure 4 In addition, the jet assembly 5 also includes a guide member 53 arranged in the first channel 421. The guide member 53 adopts a disc-shaped structure design. The periphery of the guide member 53 is integrally formed on the inner wall of the valve body 51 (i.e., the inner wall of the air outlet channel 511). The center position of the guide member 53 is penetrated along the first direction by a guide channel 531 for the needle valve 52 to pass through and a plurality of flow channels 532 for gas to flow. The plurality of flow channels 532 are evenly distributed along the circumference of the guide channel 531.

[0052] See also Figure 1 , Figure 4 and Figure 5 The side wall of the needle valve 52 is adapted to the curvature of the inner wall of the guide channel 531. The guide channel 531 on the guide member 53 and the side wall of the needle valve 52 cooperate with each other to play a guiding role. The matching tolerance between the needle valve 52 and the guide member 53 can be determined according to actual needs to ensure that no wear occurs between the side wall of the needle valve 52 and the inner wall of the guide channel 531.

[0053] See also Figure 1 and Figure 5 The needle valve 52 is provided with a first end and a second end opposite to each other along a first direction, and the second end is closer to the intake end of the intake passage 11 than the first end.

[0054] In the embodiment of the present application, a seal 54 is integrally formed on the needle valve 52 at the first end, and the seal 54 extends out of the gas outlet channel 511. The seal 54 can block the gas outlet channel 511 during the movement of the needle valve 52, so that the gas outside the injector is not easy to enter the gas path inside the injector from the gas outlet channel 511, so as to reduce the collision between the external gas and the hydrogen input into the injector.

[0055] Specifically, the sealing member 54 in the present application adopts a conical structure, and the radial dimension of the sealing member 54 gradually decreases from the first end to the second end. The surface of the sealing member 54 facing the valve body 51 is a first abutting surface 541, and a second abutting surface 512 is formed at the port of the valve body 51 close to the first end. The first abutting surface 541 and the second abutting surface 512 are two conical surfaces that fit together, and when the first abutting surface 541 and the second abutting surface 512 are pressed against each other, the air outlet channel 511 can be blocked, so that the air outlet channel 511 is blocked.

[0056] See also Figure 1 , Figure 4 and Figure 5 In addition, a stepped shaft 58 is integrally formed at the second end of the needle valve 52. The stepped shaft 58 is coaxially arranged with the needle valve 52, and the radial dimension of the stepped shaft 58 is greater than the radial dimension of the needle valve 52. A mounting groove 513 is provided on the valve body 51 near the second end. The mounting groove 513 is coaxially arranged with the air outlet channel 511 and is interconnected. The radial dimension of the mounting groove 513 is greater than the radial dimension of the air outlet channel 511. The mounting groove 513 in the embodiment of the present application is a circular stepped groove with a "convex"-shaped cross section. The diameter of the mounting groove 513 near the first end is smaller than the diameter near the second end. A reset member 55, a fixing seat 56 and a locking member 57 are sequentially sleeved on the needle valve 52 along the first direction in the mounting groove 513.

[0057] See also Figure 1 , Figure 5 and Figure 6 The reset member 55 may be a spring, and the reset member 55 is sleeved on the needle valve 52 and the stepped shaft 58. The fixing seat 56 is an annular structure, and the outer ring of the fixing seat 56 is adapted to fit the inner wall of the mounting groove 513. The fixing seat 56 is provided with a plurality of through holes 561 for gas circulation along the circumferential direction. The locking member 57 may be a nut, and the locking member 57 is threadedly connected to the second end of the needle valve 52.

[0058] See also Figure 1 and Figure 4 , wherein the fixing seat 56 is arranged on the side of the stepped shaft 58 close to the second end, and the locking member 57 is arranged on the side of the fixing seat 56 facing away from the stepped shaft 58. During assembly, the operator tightens the locking member 57, and the locking member 57 makes the end surface of the fixing seat 56 and the end surface of the stepped shaft 58 facing the second end abut against each other, thus completing the installation process of the fixing seat 56. One end of the reset member 55 abuts against the groove wall of the installation groove 513, and the other end abuts against the fixing seat 56. The reset member 55 uses its own elastic force to make the needle valve 52 return to its original position after moving, thus playing a reset role.

[0059] Combination Figures 1 to 6As shown, the injector includes two levels of sealing, namely, an intake seal realized by the intake assembly 4 and an air jet seal realized by the air jet assembly 5. The intake seal is realized by the contact between the sealing filler 46 and the convex ring 47 on the sealing seat 41, and the sealing filler 46 is deformed to complete the gas seal. The air jet seal is realized by the mutual abutment between the first abutting surface 541 and the second abutting surface 512.

[0060] See also Figure 1 and Figure 2 Specifically, when the injector is not in operation, the coil part 49 is not energized, the moving part 42 is pressed against the sealing seat 41 by the elastic part 43, and the sealing filler 46 is deformed to block the third channel 411, thereby completing the gas path blocking;

[0061] When the injector is in working state, the gas enters the inlet channel 11 through the inlet end, at which time the coil part 49 starts to be energized and gradually generates magnetism, and the adsorbing moving part 42 moves toward the inlet end. At this time, the sealing filler 46 is separated from the convex ring 47 on the sealing seat 41, and the third channel 411 is opened. The gas passes through the first receiving groove 12 and the first channel 421 in turn and enters the second channel 6, and then flows into the third channel 411, the installation groove 513 and the outlet channel 511 in turn through the second channel 6. Among them, in the installation groove 513, the gas is circulated by means of the through hole 561 on the fixing seat 56, and in the outlet channel 511, the gas is circulated by means of the flow channel 532 on the guide member 53.

[0062] Before the gas flows into the gas outlet channel 511, under the elastic force of the reset member 55, the first abutting surface 541 of the sealing member 54 always abuts against the second abutting surface 512 to achieve sealing. After the gas flows into the gas outlet channel 511, it acts on the first abutting surface 541 of the sealing member 54, and uses the gas pressure to push the sealing member 54 and drive the needle valve 52 to move, so that the sealing member 54 moves away from the valve body 51, and the first abutting surface 541 separates from the second abutting surface 512, completing the gas injection, thereby completing a complete cycle of gas injection.

[0063] An embodiment of the present application further provides a vehicle (not shown), which uses the above-mentioned injector.

[0064] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An ejector, characterized in that: The injector comprises: A shell extending along a first direction, wherein an air inlet passage is provided in the shell, and the air inlet passage penetrates the shell along the first direction; A connecting assembly connected to the shell, wherein the connecting assembly and the shell are surrounded to form an installation space, and the installation space is connected to the air intake passage; an air intake assembly, comprising a sealing seat, a moving part and an adjusting gasket arranged in the installation space, wherein the moving part is arranged between the sealing seat and the housing, and the adjusting gasket is located on a side of the sealing seat away from the moving part and abuts between the sealing seat and the connecting assembly; and An air jet assembly connected to the housing by means of the connecting assembly, the air jet assembly comprising an air outlet passage communicating with the installation space; Wherein, the moving member includes a first position and a second position, and the first position is farther away from the air inlet passage than the second position; When the moving member is located at the first position, the moving member abuts against the sealing seat, and the air inlet channel is isolated from the air outlet channel; When the moving member is located at the second position, the moving member is separated from the sealing seat, and the air inlet channel is connected to the air outlet channel; The moving member has a first channel, the first channel is connected to the air inlet channel, a second channel is defined between the side of the moving member facing away from the air inlet channel and the sealing seat and the inner wall of the installation space, when the moving member is in the first position, the second channel is isolated from the air inlet channel, when the moving member is in the second position, the second channel can be connected to the first channel, and the sealing seat has a third channel, the third channel can be connected to the second channel; The installation space comprises a first accommodating groove, in a second direction, the size of the first accommodating groove is larger than the size of the air inlet passage, and the second direction is perpendicular to the first direction; The air intake assembly further includes a coil portion and an elastic member, wherein the elastic member is disposed in the first receiving groove, the elastic member abuts between a groove wall of the first receiving groove and the moving member, the elastic member is configured to be able to extend and retract along the first direction, and the coil portion is sleeved on the outside of the moving member; The housing has a second receiving groove extending along the first direction, and the moving member is movably disposed in the second receiving groove along the first direction; The air intake assembly also includes a protrusion and a deformable member arranged on the side of the movable member close to the elastic member, the protrusion and the deformable member are respectively connected to the movable member, in the first direction, the deformable member protrudes toward the elastic member beyond the protrusion, and the deformable member is configured to be able to extend and retract along the first direction.

2. The injector according to claim 1, characterized in that The jet assembly comprises a valve body and a needle valve which are extended along the first direction, the air outlet passage penetrates the valve body along the first direction, and the needle valve is movably arranged in the air outlet passage along the first direction.

3. The injector according to claim 2, characterized in that The jet assembly also includes a guide member arranged in the air outlet channel, the guide member includes a guide channel and at least one flow channel, the guide channel and all the flow channels respectively penetrate the guide member along the first direction, and the guide channel and the flow channel are spaced apart in the second direction, and the needle valve can pass through the guide member through the guide channel.

4. The injector according to claim 2, characterized in that The needle valve has a first end and a second end arranged opposite to each other along the first direction, and the second end is closer to the housing than the first end; The jet assembly further comprises a sealing member disposed at the first end, and a size of the sealing member in the second direction gradually decreases from the first end to the second end; When the moving member is located at the first position, the sealing member seals the air outlet passage; When the moving member is located at the second position, the sealing member enables the air outlet passage to be open.

5. The injector according to claim 4, characterized in that An installation groove is provided at one end of the valve body close to the second end, and in the second direction, the size of the installation groove is larger than the size of the air outlet channel; The jet assembly also includes a reset member, a fixing seat and a locking member arranged in the mounting groove, the fixing seat is fixed to the needle valve by means of the locking member, the reset member, the fixing seat and the locking member are respectively sleeved on the second end in sequence along the first direction, the reset member abuts between the groove wall of the mounting groove and the fixing seat, and the reset member is configured to be able to extend and retract along the first direction.

6. The injector according to claim 2, characterized in that The connecting component includes a connecting piece and a fastener, the connecting piece is arranged between the valve body and the shell, the two ends of the connecting piece in the first direction are respectively abutted against the valve body and the shell, the fastener is sleeved on the valve body, the connecting piece and the coil part along the first direction, the fastener is connected to the shell, and the installation space is defined among the connecting piece, the fastener and the shell.

7. A vehicle, characterized in that: Comprising the injector according to any one of claims 1-6.

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