Carbon rod assembly, fuel system and vehicle

Abstract

The utility model discloses a carbon rod assembly, a fuel system and a vehicle. The carbon rod assembly is applied to the fuel oil system, the fuel oil system comprises a carbon tank, the carbon rod assembly comprises a shell, a carbon rod and a buffer assembly, a containing space is formed in the shell, and a gas inlet communicating with the containing space and the carbon tank is formed in the shell so as to receive gas to be adsorbed from the carbon tank; the carbon rod is arranged in the accommodating space and is used for carrying out adsorption treatment on the to-be-adsorbed gas; the buffer assembly is arranged between the carbon rod and the shell. By means of the implementation mode, the carbon rod assembly is installed in the fuel oil system through the shell, gas to be adsorbed in the carbon canister is received through the gas inlet in the shell and adsorbed, no pipeline needs to be additionally arranged, the space is saved, the carbon rod and the shell are buffered through the buffering assembly, and the service life of the carbon rod assembly is prolonged. The risk that the carbon rod is damaged due to the fact that the carbon rod collides with the shell accidentally is relieved, and the reliability of the carbon rod assembly is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fuel systems, in particular to a carbon rod assembly, a fuel system and a vehicle. BACKGROUND

[0002] With the gradual improvement of people's environmental protection awareness, the state environmental protection policy is also tightened. In 2016, the Ministry of Environmental Protection and the General Administration of Quality Supervision jointly issued the compulsory standard of GB 18352.6-2016 Light-duty Vehicle Emission Limit Values and Measurement Methods (China Phase VI), and the requirement for hydrocarbon emissions is becoming more and more stringent. Under the environment of gradually tightening of national phase VI emission regulations and fuel consumption, more and more hybrid vehicle models have emerged.

[0003] At present, the carbon rod is often connected with other components in series in the fuel system through a pipeline, which requires a larger arrangement space and has a higher cost. In addition, the installation mode of the carbon rod is relatively single, and is easy to collide with other components and be damaged. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the present application is to provide a carbon rod assembly, a fuel system and a vehicle, which aims to solve the above technical problems existing in the prior art.

[0005] To solve the above problems, the present application provides a carbon rod assembly, which is applied to a fuel system. The fuel system comprises a carbon tank, and the carbon rod assembly comprises a shell, a carbon rod and a buffer assembly. The shell forms a containing space. The shell is provided with an air inlet which communicates the containing space and the carbon tank, so as to receive the gas to be adsorbed from the carbon tank. The carbon rod is arranged in the containing space and is used for adsorbing the gas to be adsorbed. The buffer assembly is arranged between the carbon rod and the shell.

[0006] In some embodiments, the buffer assembly is arranged to allow the gas to pass through, and the buffer assembly covers the outer surface of the carbon rod.

[0007] In some embodiments, the buffer assembly comprises a buffer part and a buffer sleeve. The buffer sleeve is provided with an opening, the buffer sleeve is sleeved on the carbon rod through the opening, and the buffer part is arranged at the opening and seals the opening.

[0008] In some embodiments, the carbon rod assembly further comprises a dust filter. The shell is further provided with a connecting port which communicates the containing space and the dust filter. The dust filter is connected with the shell through the connecting port, and the containing space is communicated with the external environment through the dust filter.

[0009] In some embodiments, the connecting port is located on the side of the carbon rod away from the air inlet.

[0010] In some embodiments, the carbon rod assembly further comprises a control valve. The control valve is arranged on the shell, and the control valve is arranged to be in communication or cut off the connecting port.

[0011] In some embodiments, the connecting port is provided with a first clamping part, the dust filter is provided with a second clamping part, and the first clamping part and the second clamping part are clamped and matched to detachably connect the dust filter with the connecting port.

[0012] In some embodiments, the carbon rod assembly further comprises a first fixing part protrudingly arranged on the shell and extending towards the dust filter, and the dust filter comprises a second fixing part, and the first fixing part is fixedly connected with the second fixing part.

[0013] To solve the above problems, the present application provides a fuel system, which comprises a carbon canister and the above-mentioned carbon rod assembly, and the carbon rod assembly is connected to the carbon canister.

[0014] To solve the above problems, the present application provides a vehicle, which comprises the above-mentioned fuel system.

[0015] Compared with the prior art, the carbon rod assembly provided by the present application is applied to a fuel system, the fuel system comprises a carbon canister, the carbon rod assembly comprises a shell, a carbon rod and a buffer assembly, the shell forms an accommodation space, the shell is provided with an air inlet communicating with the accommodation space and the carbon canister to receive the to-be-adsorbed gas from the carbon canister, the carbon rod is arranged in the accommodation space and is used for adsorbing the to-be-adsorbed gas, and the buffer assembly is arranged between the carbon rod and the shell. Through the above-mentioned implementation, the carbon rod assembly is installed in the fuel system through the shell, and the to-be-adsorbed gas in the carbon canister is received through the air inlet on the shell and is adsorbed, without the need of additionally arranging a pipeline, space is saved, and the carbon rod and the shell are buffered through the buffer assembly, the risk of damage of the carbon rod caused by accidental collision between the carbon rod and the shell is alleviated, and the reliability of the carbon rod assembly is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is a structural schematic diagram of a vehicle according to one or more embodiments of the present application;

[0018] Figure 2 is a structural schematic diagram of a fuel system according to one or more embodiments of the present application;

[0019] Figure 3 is a first perspective view of a carbon rod assembly according to one or more embodiments of the present application;

[0020] Figure 4is a second perspective view of a carbon rod assembly according to one or more embodiments of the present application;

[0021] Figure 5 is a perspective view of a carbon rod assembly according to Figure 4 is a cross-sectional view of the carbon rod assembly shown in FIG. 1 along the A-A direction;

[0022] Figure 6 is a perspective view of a carbon rod assembly according to Figure 4 is a cross-sectional view of the carbon rod assembly shown in FIG. 1 along the B-B direction;

[0023] Figure 7 is a perspective view of a carbon rod assembly according to Figure 4 is a cross-sectional view of the carbon rod assembly shown in FIG. 1 along the C-C direction.

[0024] Reference signs: vehicle 1; fuel system 2; carbon rod assembly 100; carbon canister 200; housing 10; accommodating space 11; air inlet 12; connecting port 13; first clamping portion 131; carbon rod 20; buffer assembly 30; buffer portion 31; buffer sleeve 32; opening 321; dust filter 40; second clamping portion 41; second fixing portion 42; control valve 50; first fixing portion 60. DETAILED DESCRIPTION

[0025] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments of the present application, and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0027] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0028] Reference to“an embodiment” herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase“in an embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that any of the embodiments described herein can be incorporated into any other embodiment.

[0029] In the description of the embodiments of the application, the term“and / or” only means an association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character“ / ” herein generally means that the front and rear associated objects have an“or” relationship.

[0030] In the description of the embodiments of the application, the term“a plurality of” refers to two or more (including two), and similarly, “a plurality of groups” refers to two or more groups (including two groups), and “a plurality of pieces” refers to two or more pieces (including two pieces).

[0031] In the description of the embodiments of the application, the technical terms“center”,“longitudinal”,“transverse”,“length”,“width”,“thickness”,“upper”,“lower”,“front”,“rear”,“left”,“right”,“vertical”,“horizontal”,“top”,“bottom”,“inner”,“outer”,“clockwise”,“counterclockwise”,“axial”,“radial”,“circumferential” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the application.

[0032] In the description of the embodiments of the application, unless otherwise explicitly specified and limited, the technical terms“mounting”,“connection”,“connection”,“fixing” and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the application can be understood according to the specific circumstances.

[0033] With the gradual improvement of people's environmental protection consciousness, the state environmental protection policy is also tightened. In 2016, the Ministry of Environmental Protection and the General Administration of Quality Supervision jointly issued the mandatory standard of“GB 18352.6-2016 Light-duty Vehicle Emission Limit Values and Measurement Methods (China Phase VI)”, and the requirement of hydrocarbon emission is becoming more and more strict. Under the environment of gradually tightening of national phase VI emission regulations and fuel consumption, more and more hybrid models have emerged.

[0034] At present, the carbon rod is often connected with other components in series in the fuel system through a pipeline, which requires a larger arrangement space, is higher in cost, and the installation mode of the carbon rod is single, which is easy to collide with other components and be damaged.

[0035] Please refer to Figure 1 , Figure 1 is a structural schematic diagram of a vehicle according to one or more embodiments of the present application.

[0036] The present application provides a vehicle, which can be a fuel automobile, a gas automobile or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile or a range extended automobile. The vehicle can be a front drive vehicle or a four-wheel drive vehicle. The vehicle includes a fuel system, which can be used to control fuel evaporation during vehicle stopping or running.

[0037] In combination with Figure 2 , Figure 2 is a structural schematic diagram of a fuel system according to one or more embodiments of the present application.

[0038] To solve the above problems, the present application provides a fuel system, which includes a carbon canister and a carbon rod assembly. The carbon rod assembly is connected to the carbon canister. The carbon canister can be used to capture and store fuel vapor to prevent environmental pollution caused by fuel vapor entering the external environment. At least part of the carbon-hydrogen molecules in the fuel vapor enter the carbon canister and are desorbed and stored after entering the carbon canister. It can be understood that the carbon canister may not be able to completely adsorb the fuel vapor, and the carbon rod assembly is used to connect with the carbon canister and receive the adsorption gas in the carbon canister, wherein the adsorption gas refers to the fuel vapor that has been desorbed once by the carbon canister.

[0039] In combination with Figures 3-7 , Figure 3 is a first perspective view of a carbon rod assembly according to one or more embodiments of the present application; Figure 4 is a second perspective view of a carbon rod assembly according to one or more embodiments of the present application; Figure 5 is a cross-sectional view of the carbon rod assembly along the A-A direction according to Figure 4 ; Figure 6 is a cross-sectional view of the carbon rod assembly along the B-B direction according to Figure 4 ; Figure 7 is a cross-sectional view of the carbon rod assembly along the C-C direction according to Figure 4 .

[0040] To solve the above problems, the application provides a carbon rod assembly 100, which is applied to a fuel system 2, the fuel system 2 comprises a carbon canister 200, the carbon rod assembly 100 comprises a shell 10, a carbon rod 20 and a buffer assembly 30, the shell 10 is formed with a containing space 11, the shell 10 is provided with an air inlet 12 which is communicated with the containing space 11 and the carbon canister 200, so as to receive the to-be-adsorbed gas from the carbon canister 200; the carbon rod 20 is arranged in the containing space 11, and the carbon rod 20 is used for adsorbing and treating the to-be-adsorbed gas; and the buffer assembly 30 is arranged between the carbon rod 20 and the shell 10.

[0041] The shell 10 is formed with a receiving space 11 to accommodate the carbon rod 20 and the buffer assembly 30 and other components by the receiving space 11 and provide support and protection. The carbon rod 20 is used for adsorption treatment of the gas to be adsorbed, which can refer to the carbon rod 20 capturing and storing the hydrocarbon gas in the gas to be adsorbed. The carbon rod 20 can be a honeycomb columnar carbon, including but not limited to, and the like. When the carbon rod 20 is a honeycomb columnar carbon, the diameter of the carbon rod 20 can be greater than or equal to 25 mm and less than or equal to 40 mm. For example, the radial dimension of the carbon rod 20 can be between 25 mm and 30 mm, or between 30 mm and 35 mm, or between 35 mm and 40 mm, and the like. Specifically, the radial dimension of the carbon rod 20 can be 25 mm, 28 mm, 30 mm, 33 mm, 35 mm, or 40 mm, and the like. Optionally, the radial dimension of the carbon rod 20 is 30 mm or 35 mm. The axial dimension of the carbon rod 20 can be greater than or equal to 70 mm and less than or equal to 110 mm. For example, the axial dimension of the carbon rod 20 can be between 70 mm and 80 mm, or between 80 mm and 90 mm, or between 90 mm and 110 mm. Specifically, the axial dimension of the carbon rod 20 can be 70 mm, 80 mm, 90 mm, 100 mm, 105 mm, 110 mm, and the like. Optionally, the axial dimension of the carbon rod 20 can be 80 mm or 100 mm. The receiving space 11 is connected with the carbon canister 200 through the gas inlet 12 on the shell 10 to receive the gas to be adsorbed in the carbon canister 200 through the gas inlet 12. It should be noted that the receiving space 11 can be directly connected with the carbon canister 200 through the gas inlet 12, or indirectly connected with the carbon canister 200 through a pipeline or the like. Optionally, the gas inlet 12 can be connected with the carbon canister 200 by quick insertion or bamboo joint crimping, and the like. The carbon rod 20 can be directly carried on the shell 10. For example, the shell 10 can be formed with a support which is integrally formed with the shell 10, so that the shell 10 directly carries the carbon rod 20 through the support, improving the integration of the carbon rod assembly 100. The buffer assembly 30 is arranged between the carbon rod 20 and the shell 10, so that the carbon rod 20 can be buffered. The buffer assembly 30 has a certain elasticity and flexibility. It should be noted that during the movement of the vehicle 1, the carbon rod 20 can displace a certain amount relative to the shell 10. The buffer assembly 30 is arranged between the carbon rod 20 and the shell 10, thereby reducing the direct collision between the carbon rod 20 and the shell 10, protecting the carbon rod 20 and improving the reliability of the carbon rod assembly 100.

[0042] Through the above embodiments, the carbon rod assembly 100 is installed in the fuel system 2 through the shell 10, and receives and adsorbs the gas to be adsorbed in the carbon canister 200 through the air inlet 12 on the shell 10, without the need for additional pipelines, saving space, and the carbon rod 20 and the shell 10 are buffered through the buffer assembly 30, which alleviates the risk of damage to the carbon rod 20 caused by accidental collision between the carbon rod 20 and the shell 10, and improves the reliability of the carbon rod assembly 100.

[0043] In some embodiments, the buffer assembly 30 is provided to allow gas to pass through, and the buffer assembly 30 covers the outer surface of the carbon rod 20. It can be understood that the buffer assembly 30 covers the outer surface of the carbon rod 20, further reducing the risk of direct collision between the carbon rod 20 and the shell 10 when the carbon rod 20 is displaced, and improving the reliability of the carbon rod assembly 100. At the same time, the buffer assembly 30 is provided to allow gas to pass through, thereby facilitating the contact of the gas to be adsorbed with the carbon rod 20 through the buffer assembly 30, and leaving the carbon rod 20 after being adsorbed by the carbon rod 20. Exemplarily, the buffer assembly 30 can include but is not limited to a buffer sponge and the like, and in some application scenarios, the buffer sponge can also be an activated carbon sponge, thereby cooperating with the carbon rod 20 to further improve the adsorption effect of the carbon rod assembly 100 on the gas to be adsorbed. Therefore, by providing the buffer assembly 30 to allow gas to pass through, and covering the outer surface of the carbon rod 20 with the buffer assembly 30, the safety of the carbon rod 20 and the reliability of the carbon rod assembly 100 are further improved.

[0044] In some embodiments, the buffer assembly 30 includes a buffer portion 31 and a buffer sleeve 32, the buffer sleeve 32 is provided with an opening 321, the buffer sleeve 32 is sleeved on the carbon rod 20 through the opening 321, and the buffer portion 31 is arranged at the opening 321 and seals the opening 321. The buffer sleeve 32 is sleeved on the carbon rod 20 through the opening 321, improving the installation convenience of the buffer assembly 30, and the buffer portion 31 is arranged at the opening 321 and seals the opening 321, facilitating the cooperation of the buffer sleeve 32 to improve the buffering effect on the carbon rod 20. The number of buffer portions 31 can be one or more, and in some application scenarios, the buffer sleeve 32 is provided with openings 321 at both ends, and the number of buffer portions 31 can be two, and two buffer portions 31 are respectively arranged corresponding to one opening 321 and respectively seal the corresponding opening 321. As an example, the buffer sleeve 32 and the buffer portion 31 can cooperate to form a buffer space, so that the carbon rod 20 is accommodated in the buffer space. Therefore, the buffer assembly 30 is provided as a detachably connected buffer sleeve 32 and buffer portion 31, which enhances the buffering effect and improves the installation convenience of the buffer assembly 30, facilitating the installation and replacement of the buffer assembly 30.

[0045] In some embodiments, the charcoal rod assembly 100 further comprises a dust filter 40, the housing 10 is further provided with a connecting port 13 which communicates the accommodating space 11 and the dust filter 40, and the dust filter 40 is connected to the housing 10 through the connecting port 13, and the accommodating space 11 communicates with the external environment through the dust filter 40. The dust filter 40 can be used to block impurities such as dust particles in the gas, thereby reducing the risk of dust in the external environment entering the accommodating space 11 and causing the fuel system 2 to malfunction. The dust filter 40 can be an integrated dust filter 40, which can include filter paper to filter the gas, and can further include an air inlet and a dust outlet which communicate with the external environment, the air inlet being used to guide external gas into the dust filter 40, and the dust outlet being used to discharge dust and impurities filtered by the dust filter 40. Thus, the safety of the fuel system 2 is improved by the dust filter 40, and the dust filter 40 is directly connected to the housing 10 through the connecting port 13, without the need to set up a pipeline independent of the dust filter 40 and the housing 10, thereby improving the integration of the charcoal rod assembly 100 and saving the installation space of the charcoal rod assembly 100.

[0046] In some embodiments, the connecting port 13 is located on the side of the charcoal rod 20 away from the air inlet 12. It can be understood that the to-be-adsorbed gas enters the accommodating space 11 through the air inlet 12 and exits the accommodating space 11 through the connecting port 13 after being subjected to adsorption treatment, and the connecting port 13 is located on the side of the charcoal rod 20 away from the air inlet 12, which helps the connecting port 13 to be located downstream of the charcoal rod 20 in the airflow path, thereby facilitating the charcoal rod 20 to fully adsorb the to-be-adsorbed gas and reducing the risk of the to-be-adsorbed gas exiting the accommodating space 11 without being adsorbed.

[0047] In some embodiments, the charcoal rod assembly 100 further comprises a control valve 50 which is arranged on the housing 10 and is arranged to open or block the connecting port 13. The control valve 50 can be a carbon canister 200 vent solenoid (CVS), which can open or block the connecting port 13 to block the gas from entering or exiting the accommodating space 11 through the connecting port 13. It should be noted that, in the process of OBD (On-Board Diagnostics, vehicle-mounted diagnostic system) evaporation leakage diagnosis, the accommodating space 11 needs to be communicated or blocked with the external environment according to the actual situation, and the control valve 50 can open or block the connecting port 13 to cooperate with the vehicle-mounted diagnostic system to perform evaporation leakage diagnosis, thereby improving the reliability of the fuel system 2. At the same time, the control valve 50 is directly arranged on the housing 10, without the need to set up a pipeline independent of the housing 10 and the control valve 50 between the housing 10 and the control valve 50, thereby improving the integration of the charcoal rod assembly 100 and saving the installation space of the charcoal rod assembly 100.

[0048] In some embodiments, the connecting port 13 is provided with a first clamping portion 131, and the dust filter 40 is provided with a second clamping portion 41, the first clamping portion 131 and the second clamping portion 41 are clamped and matched to detachably connect the dust filter 40 with the connecting port 13. For example, the first clamping portion 131 can be a clamping hole or a clamping slot, and the second clamping portion 41 can be a clamping head, so as to facilitate quick disconnection and connection between the clamping head and the clamping hole or the clamping slot. Thus, the dust filter 40 is detachably connected with the shell 10 through the first clamping portion 131 and the second clamping portion 41, and the convenience of maintenance and replacement of the dust filter 40 is improved.

[0049] In some embodiments, the carbon rod assembly 100 further comprises a first fixing portion 60 protrudingly arranged on the shell 10 and extending towards the dust filter 40, and the dust filter 40 comprises a second fixing portion 42, and the first fixing portion 60 is fixedly connected with the second fixing portion 42. In some application scenarios, the first fixing portion 60 can be integrally formed with the shell 10. The fixed connection between the first fixing portion 60 and the second fixing portion 42 can include, but is not limited to, bolt connection and the like. Thus, the dust filter 40 is relatively fixed with the shell 10 through the first fixing portion 60 on the shell 10 and the second fixing portion 42 on the dust filter 40, the connection stability of the dust filter 40 and the shell 10 is improved, and no additional pipeline independent of the dust filter 40 and the shell 10 is needed, which further improves the integration of the carbon rod assembly 100 and saves the installation space of the carbon rod assembly 100.

[0050] In summary, the carbon rod assembly 100 provided by the present application is applied to the fuel system 2, the fuel system 2 comprises a carbon canister 200, the carbon rod assembly 100 comprises a shell 10, a carbon rod 20 and a buffer assembly 30, the shell 10 forms an accommodation space 11, the shell 10 is provided with an air inlet 12 communicating with the accommodation space 11 and the carbon canister 200 to receive the to-be-adsorbed gas from the carbon canister 200, the carbon rod 20 is arranged in the accommodation space 11 and used for adsorbing the to-be-adsorbed gas, and the buffer assembly 30 is arranged between the carbon rod 20 and the shell 10. Through the above-mentioned embodiments, the carbon rod assembly 100 is installed in the fuel system 2 through the shell 10, and the to-be-adsorbed gas in the carbon canister 200 is received through the air inlet 12 on the shell 10 and is adsorbed, no additional pipeline is needed, the space is saved, and the carbon rod 20 and the shell 10 are buffered through the buffer assembly 30, the risk of damage of the carbon rod 20 caused by accidental collision between the carbon rod 20 and the shell 10 is alleviated, and the reliability of the carbon rod assembly 100 is improved. Compared with other carbon rod assemblies, the carbon rod assembly 100 provided by the present application has higher integration and reliability.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced equivalently. Such modifications or replacements do not change the essence of the corresponding technical solutions, which should be covered in the scope of the present application. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A carbon rod assembly, characterized by, The application is applied to a fuel system, which comprises a carbon canister, and the carbon stick assembly comprises: a shell, which is formed with a receiving space, and is provided with an air inlet communicating with the receiving space and the carbon canister to receive the gas to be adsorbed from the carbon canister; a carbon stick, which is arranged in the receiving space and is used for adsorbing the gas to be adsorbed; a buffer assembly, which is arranged between the carbon stick and the shell.

2. The carbon rod assembly of claim 1, wherein The buffer assembly is arranged to allow the gas to pass through, and covers the outer surface of the carbon stick.

3. The carbon rod assembly of claim 1 or 2, wherein, The buffer assembly comprises a buffer part and a buffer sleeve, the buffer sleeve is provided with an opening, the buffer sleeve is sleeved on the carbon stick through the opening, and the buffer part is arranged at the opening and seals the opening.

4. The carbon rod assembly of claim 1, wherein The carbon stick assembly further comprises a dust filter, and the shell is further provided with a connecting port communicating with the receiving space and the dust filter, the dust filter is connected with the shell through the connecting port, and the receiving space is communicated with the external environment through the dust filter.

5. The carbon rod assembly of claim 4, wherein, The connecting port is located on the side of the carbon stick away from the air inlet.

6. The carbon rod assembly of claim 5, wherein, The carbon stick assembly further comprises a control valve, which is arranged on the shell, and is arranged to open or close the connecting port.

7. The carbon rod assembly of claim 5, wherein, The connecting port is provided with a first clamping part, the dust filter is provided with a second clamping part, and the first clamping part and the second clamping part are clamped and matched to detachably connect the dust filter with the connecting port.

8. The carbon rod assembly of claim 7, wherein, The carbon stick assembly further comprises a first fixing part, which is protrudingly arranged on the shell and extends towards the dust filter, and the dust filter comprises a second fixing part, and the first fixing part is fixedly connected with the second fixing part.

9. A fuel system characterised in that, The fuel system comprises the carbon canister and the carbon stick assembly according to any one of claims 1 to 8, and the carbon stick assembly is connected with the carbon canister.

10. A vehicle characterized by comprising: The vehicle comprises the fuel system according to claim 9. The application is applied to a fuel system, which comprises a carbon canister, and the carbon stick assembly comprises: a shell, which is formed with a receiving space, and is provided with an air inlet communicating with the receiving space and the carbon canister to receive the gas to be adsorbed from the carbon canister; a carbon stick, which is arranged in the receiving space and is used for adsorbing the gas to be adsorbed; a buffer assembly, which is arranged between the carbon stick and the shell. The buffer assembly is arranged to allow the gas to pass through, and covers the outer surface of the carbon stick. The buffer assembly comprises a buffer part and a buffer sleeve, the buffer sleeve is provided with an opening, the buffer sleeve is sleeved on the carbon stick through the opening, and the buffer part is arranged at the opening and seals the opening. The carbon stick assembly further comprises a dust filter, and the shell is further provided with a connecting port communicating with the receiving space and the dust filter, the dust filter is connected with the shell through the connecting port, and the receiving space is communicated with the external environment through the dust filter. The connecting port is located on the side of the carbon stick away from the air inlet. The carbon stick assembly further comprises a control valve, which is arranged on the shell, and is arranged to open or close the connecting port. The connecting port is provided with a first clamping part, the dust filter is provided with a second clamping part, and the first clamping part and the second clamping part are clamped and matched to detachably connect the dust filter with the connecting port. The carbon stick assembly further comprises a first fixing part, which is protrudingly arranged on the shell and extends towards the dust filter, and the dust filter comprises a second fixing part, and the first fixing part is fixedly connected with the second fixing part. The fuel system comprises the carbon canister and the carbon stick assembly according to any one of claims 1 to 8, and the carbon stick assembly is connected with the carbon canister. The vehicle comprises the fuel system according to claim 9.

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