WO2023272877A1 - 一种网格状油箱 - Google Patents

一种网格状油箱 Download PDF

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Publication number
WO2023272877A1
WO2023272877A1 PCT/CN2021/111082 CN2021111082W WO2023272877A1 WO 2023272877 A1 WO2023272877 A1 WO 2023272877A1 CN 2021111082 W CN2021111082 W CN 2021111082W WO 2023272877 A1 WO2023272877 A1 WO 2023272877A1
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WO
WIPO (PCT)
Prior art keywords
grid
cavity
fuel tank
fuel
shell
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Application number
PCT/CN2021/111082
Other languages
English (en)
French (fr)
Inventor
朱庆凯
Original Assignee
统亚(山东)汽车科技集团有限公司
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Filing date
Publication date
Application filed by 统亚(山东)汽车科技集团有限公司 filed Critical 统亚(山东)汽车科技集团有限公司
Priority to US17/759,810 priority Critical patent/US20240181869A1/en
Priority to EP21916640.2A priority patent/EP4137342A4/en
Priority to JP2022547716A priority patent/JP2023535100A/ja
Publication of WO2023272877A1 publication Critical patent/WO2023272877A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/04—Tank inlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/077—Fuel tanks with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03328—Arrangements or special measures related to fuel tanks or fuel handling
    • B60K2015/0344—Arrangements or special measures related to fuel tanks or fuel handling comprising baffles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/077—Fuel tanks with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation
    • B60K2015/0775—Fuel tanks with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation for reducing movement or slash noise of fuel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/077—Fuel tanks with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation
    • B60K2015/0777—Fuel tanks with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation in-tank reservoirs or baffles integrally manufactured with the fuel Tank

Definitions

  • the application relates to a grid-shaped fuel tank, which belongs to the field of auto parts.
  • the fuel tank is an important safety and regulatory part in automobile parts, and its structure optimization and performance improvement have become a problem that major automobile manufacturers are competing to discuss and solve.
  • a partition is usually installed inside the fuel tank.
  • the partition is usually welded to the wall of the fuel tank, and the middle part is opened to pass through the oil.
  • this welding structure is easy to make the partition and the tank body Stress concentration in the welding seam of the car body, the fuel surge will cause cracks at the welding position of the partition and the box body during the running process of the car body, and the anti-surge phenomenon is not ideal.
  • the present application proposes a grid-shaped fuel tank.
  • the grid-shaped fuel tank divides the middle of the cavity into several grid cavities, so that the side walls of each grid cavity share the impact of fuel flow, so there is no need to design a separate anti-surge partition, and it can Significantly reduce the surge phenomenon of fuel; in addition, the grid ribs can increase the overall rigidity of the fuel tank, preventing the box from being deformed or cracked when it is impacted by an external force; in addition, by setting the bottom of the first grid cavity group
  • the fuel ports are connected to each other to form a fuel tank, so that the fuel flows in the area of the lower casing, thereby greatly reducing the impact force of the fuel flow and weakening the "surge" phenomenon of the fuel.
  • a grid-shaped fuel tank which includes: a fuel tank housing that encloses a cavity including a fuel chamber, and the fuel tank housing includes an upper upper housing area, a central mid-hull region and a lower lower-hull region;
  • a middle grid rib structure is set in the cavity corresponding to the middle shell height area, and the middle grid rib structure divides the middle part of the cavity into several middle grid cavities, and the middle grid cavities are separated by There is no communication in the radial direction, and the bottom end of the first middle grid cavity group included in the middle grid cavity is provided with an oil opening to communicate with each other to form the fuel cavity.
  • an inlet is provided at the top of at least one of the first middle grid chambers in the first middle grid chamber group, and the inlet is connected to the oil inlet provided on the fuel tank housing, and the first middle grid chamber Openings are set at the bottom ends of the fuel tanks to communicate with each other to form the fuel chamber;
  • the middle grid rib structure is arranged and connected by several middle partitions to form a grid shape, and the first middle grid cavity group is a sealed channel-like structure with openings at both ends.
  • a lower grid rib structure corresponding to the lower casing area is also provided in the cavity, and the lower grid rib structure is abutted and sealed with the middle grid rib structure;
  • the lower grid rib structure divides the lower part of the cavity into several lower grid cavities, and the lower grid cavities include a first lower grid cavity group paired with the first middle grid cavity group , the first middle mesh chamber in the first middle mesh chamber group communicates with the first lower mesh chamber in the first lower mesh chamber group through an oil port;
  • the oil flow ports provided by the lower grid ribs between the first lower grid cavities are in communication, and the first middle grid cavity group and the first lower grid cavity group form a fuel cavity.
  • the lower housing area includes a side wall and a bottom wall, and the oil flow port extends upward from a connection between the lower grid rib and the bottom wall.
  • the cross-sectional shape of the middle grid cavity is selected from at least one of triangle, quadrangle, circle, pentagon, hexagon and polygon.
  • the fuel tank is a cube
  • the central grid ribs include several intermediate partitions extending axially along the fuel tank
  • the cross section of the central grid cavity is a right-angled quadrilateral.
  • the fuel tank shell is integrally formed by blow molding/rotomolding, or formed by welding.
  • an integrated fuel tank which includes the grid-shaped fuel tank described in any one of the above, and the middle grid cavity also includes a second grid cavity group, and the first The middle grid chamber group and the second middle grid chamber group are not connected to each other, and the middle grid chambers in the second middle grid chamber group are connected to each other to form a urea chamber.
  • the bottom ends of the second middle grid chambers in the second middle grid chamber group are sealed, and the side walls of the second middle grid chambers communicate with each other to form the urea chamber.
  • the second middle grid cavity is integrally formed by injection molding.
  • the grid-shaped fuel tank provided by this application divides the middle part of the cavity into several grid cavities by setting the grid rib structure.
  • the grid cavities are not connected in the radial direction, and each grid cavity Fuel is filled inside, so that the side walls of each medium grid cavity share the impact of fuel flow, so there is no need to design a separate anti-surge partition, and the surge phenomenon of fuel can be significantly reduced; in addition, the medium grid
  • the ribs can increase the overall rigidity of the fuel tank and prevent the tank from being deformed or cracked when it is impacted by an external force; in addition, since the fuel impact frequency is the highest and the area with the greatest impact force is mainly concentrated in the middle of the fuel tank when the car is running, so through the
  • the bottom end of the first middle grid cavity group is provided with an oil port to communicate with each other to form a fuel tank, so that the fuel flows in the lower shell area, thereby greatly reducing the impact of fuel flow and weakening the "surge" phenomenon of fuel .
  • an inlet is provided at the top of at least one of the first middle grid cavities, and the inlet is connected to the oil inlet provided by the tank shell, and the first Openings are provided at the bottom of the middle grid chamber, so that after the fuel enters at least one first middle grid chamber through the oil inlet, it flows into other first middle grid chambers through the opening at the bottom of the first middle grid chamber, thereby
  • the fuel level in each first middle grid cavity is the same, that is, the fuel impact force on the side wall of each first middle grid cavity is uniform, so as to further prevent the deformation or cracking of the fuel tank caused by uneven gravity .
  • the grid-shaped fuel tank provided by this application further reduces the fuel impact force on the shell corresponding to the lower shell area of the fuel tank by setting the lower grid rib structure in the lower shell area, and improves the fuel tank lower shell.
  • the strength of the shell corresponding to the body area can be prevented from deformation; by connecting the oil flow ports provided by the lower grid ribs between the first lower grid cavities, the fuel can flow in the lower shell area, which can not only realize the The flow between each first lower grid cavity, and then realize the flow of fuel in each first middle grid cavity, and can reduce the fuel impact force on the middle partition to prevent the fuel tank from being damaged due to excessive impact force Deformation or cracking occurs.
  • the cross-section of the grid cavity is set to be a right-angled quadrilateral, thereby further improving the structural stability of the grid cavity, increasing the strength of the fuel tank, and preventing deformation of the fuel tank.
  • the integrated fuel tank provided by this application realizes the integrated setting of the fuel chamber and the urea chamber by setting the second middle mesh chamber group, and the second middle mesh chamber group is not connected to the first middle mesh chamber group , reducing the volume of the integrated fuel tank, reducing the combined weight of the two, making the vehicle lighter; in addition, by setting the fuel chamber and the urea chamber together, the heat in the fuel chamber can heat the urea chamber to achieve heat
  • the reuse of the urea solution avoids the crystallization of the urea solution in the urea chamber.
  • the first middle grid cavity group and the second middle grid cavity group are realized by setting the bottom end seal of the second middle grid cavity group in the second middle grid cavity group They are not connected to each other, and can make the fuel flow and communicate under the second middle grid cavity group, reducing the flow resistance of the fuel.
  • Fig. 1 is a three-dimensional schematic diagram of a grid-shaped fuel tank involved in Embodiments 1 and 2 of the present application;
  • Figure 2 is a schematic front view of the grid-shaped fuel tank involved in Embodiments 1 and 2 of the present application;
  • Fig. 3 is a sectional view of grid-shaped fuel tank A-A involved in Embodiments 1 and 2 of the present application;
  • Fig. 4 is a schematic diagram of the grid-shaped fuel tank upper casing involved in Embodiments 1 and 2 of the present application;
  • Fig. 5 is a schematic diagram of the housing in the grid-shaped fuel tank involved in Embodiments 1 and 2 of the present application;
  • Fig. 6 is a top view of the housing in the grid-shaped fuel tank involved in Embodiments 1 and 2 of the present application;
  • Fig. 7 is a cross-sectional view of grid-shaped fuel tank B-B involved in Embodiments 1 and 2 of the present application;
  • Fig. 8 is a C-C cross-sectional view of the grid-shaped fuel tank involved in Embodiments 1 and 2 of the present application;
  • Fig. 9 is a schematic diagram of the combination of the grid-shaped fuel tank lower casing and the middle casing involved in Embodiments 1 and 2 of the present application;
  • Fig. 10 is a schematic diagram of the grid-shaped fuel tank upper casing involved in Embodiments 1 and 2 of the present application;
  • Fig. 11 is a front sectional view of a grid-shaped fuel tank involved in Embodiment 3 of the present application;
  • Fig. 12 is an enlarged view of part A in Fig. 11;
  • Fig. 13 is a schematic diagram of the housing in the grid-shaped fuel tank involved in Embodiment 3 of the present application;
  • Fig. 14 is a top view of the housing in the grid-like fuel tank involved in Embodiment 3 of the present application;
  • Figure 15 is a D-D cross-sectional view of the grid-shaped fuel tank involved in Embodiment 3 of the present application.
  • Fig. 16 is an E-E cross-sectional view of the grid-shaped fuel tank involved in Embodiment 3 of the present application.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as “first” or “second” may explicitly or implicitly include one or more of these features.
  • “plurality” means two or more, unless otherwise specifically defined.
  • a first feature being "on” or “under” a second feature may mean that the first and second features are in direct contact, or that the first and second features are indirect through an intermediary. touch.
  • descriptions referring to the terms “one embodiment”, “some embodiments”, “example”, “specific examples”, or “some examples” mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present application.
  • the schematic representations of the above terms are not necessarily directed to the same embodiment or example.
  • the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
  • the grid-shaped fuel tank of the present application can be used only as a fuel tank, or can be used as an integrated fuel tank and urea tank, or the fuel tank can be integrated with other functional cavities.
  • Gridded fuel tanks may be used, but not limited to, as fuel storage components for motor vehicles.
  • the drawings in the following embodiments use the integrated fuel tank and the urea tank as examples to illustrate the structure of the grid-shaped fuel tank, but are not limited to the integrated fuel tank and the urea tank.
  • the integrated fuel tank and the urea tank that is, the grid-shaped fuel tank, include a fuel tank housing with a urea chamber and a fuel chamber inside the fuel tank housing, and the fuel tank housing is provided with a urea feeding port 15 and an oil inlet 12,
  • the grid-shaped fuel tank also includes a urea sensor 58 and a urea pump respectively connected to the urea chamber, and a fuel oil level sensor and a fuel pump respectively connected to the fuel chamber.
  • the fuel is not limited to gasoline, diesel, and the like.
  • Embodiment 1 of the present application discloses a grid-shaped fuel tank, which includes: a fuel tank housing, which encloses a cavity including a fuel chamber, and the fuel tank housing includes an upper upper shell The body area, the middle shell area in the middle and the lower shell area in the lower part; the middle grid rib 32 structure is set in the cavity corresponding to the height area of the middle shell 31, and the middle grid rib 32 structure divides the middle part of the cavity into several middle grids
  • the grid chambers and the middle grid chambers are not connected in the radial direction, and the bottom ends of the first middle grid chamber group included in the middle grid chambers are provided with oil ports to communicate with each other to form fuel chambers.
  • the middle part of the cavity is divided into several middle grid cavities by setting the middle grid rib 32 structure, and the middle grid cavities are not connected in the radial direction, and each first middle grid cavity in the first middle grid cavity group 33 is filled with fuel, so that the side walls of each grid cavity share the impact of fuel flow, so there is no need to design a separate anti-surge partition, and the surge phenomenon of fuel can be significantly reduced; in addition, the grid The grid ribs 32 can increase the overall rigidity of the fuel tank and prevent the tank from being deformed or cracked when it is impacted by an external force; in addition, because the area with the highest frequency of fuel impacts and the greatest impact force is mainly concentrated in the middle of the fuel tank when the car is running, therefore Fuel ports are set at the bottom of the first grid cavity group to communicate with each other to form a fuel tank, so that fuel flows in the lower shell area, thereby greatly reducing the impact of fuel flow and weakening the "surge" of fuel "Phenomenon.
  • the ratio of the heights of the upper casing region, the middle casing region and the lower casing region is (0.8-1.2):(4-6):(0.8-1.2).
  • the ratio of the heights of the upper casing region, the middle casing region and the lower casing region is 1:5:1.
  • the fuel tank shell can be processed by any processing method, for example, it can be integrally formed by blow molding, or it can be formed by welding a plurality of shells respectively after injection molding.
  • the fuel tank casing processed by any processing method includes the upper upper casing region, the middle middle casing region and the lower lower casing region.
  • the first medium-grid cavity group is integrally formed by injection molding.
  • the fuel tank casing includes an upper casing 11, a middle casing 31 and a lower casing 51, and the upper casing 11, the middle casing 31 and the lower casing 51 are respectively welded to form a cavity including a fuel cavity .
  • the fuel tank casing is formed by welding after injection molding.
  • the wall thickness of the casing is uniform and the mechanical strength is high, but also the three casings of the upper casing 11, the middle casing 31 and the lower casing 51 are respectively welded, and the welding
  • the stress is dispersed at the upper and lower ends of the shell, on the one hand, the stress concentration of the welding part of the shell is reduced, and the cracking of the welded part is avoided; , to avoid setting the welding seam in the middle part of the shell, which not only improves the overall strength of the shell, but also avoids the cracking of the welded part of the shell due to impact force, and improves the service life of the fuel tank.
  • the upper case 11 forms an upper case area
  • the middle case 31 forms a middle case area
  • the lower case 51 forms a lower case area.
  • the height of the middle housing 31 accounts for more than 1/3 of the total height of the housing.
  • the welds between the middle shell 31 and the upper shell 11, and the welds between the middle shell 31 and the lower shell 51 are arranged on the shell.
  • the upper and lower ends of the shell keep the weld away from the area where the shell is subjected to the greatest impact force, so that the welding stress is dispersed on the upper and lower ends of the shell, and the cracking caused by the stress concentration at the welded seam is avoided.
  • the ratio of the heights of the upper case 11, the middle case 31 and the lower case 51 is (0.8-1.2):(4-6):(0.8-1.2); more preferably, the upper case 11, the middle case
  • the height ratio of the housing 31 and the lower housing 51 is 1:5:1, and the heights of the upper housing and the lower housing are both 50-80 mm.
  • the upper shell 11 , the middle shell 31 and the lower shell 51 are respectively injection molded and then thermally welded.
  • the wall thickness uniformity of the upper shell 11, the middle shell 31, and the lower shell 51 are respectively improved, and their mechanical strength is improved. Further prolong the service life of the fuel tank.
  • the thickness of the upper shell 11 and the lower shell 51 is greater than that of the middle shell 31 , so that the width of the welding surface of the upper shell 11 and the lower shell 51 is greater than the width of the welding surface of the middle shell 31 .
  • the welding surface width of the upper casing 11 is greater than the welding surface width of the middle casing 31, thereby increasing the distance between the upper casing 11 and the middle casing 31. Welding area, so that the welding surface of the middle casing 31 and the welding surface of the upper casing 11 are completely welded together to prevent leakage of welding between the middle casing 31 and the lower casing 51.
  • the upper casing 11 is thickened It is also possible to improve the bearing capacity of the upper case 11 and prevent the upper case 11 from being deformed due to carrying electrical components;
  • the width is greater than the width of the welding surface of the middle casing 31, which increases the welding area between the lower casing 51 and the middle casing 31, and improves the welding strength between the lower casing 51 and the middle casing 31.
  • the lower casing 51 is located at the bottom of the housing, so the thickening of the bottom of the lower housing 51 can improve the load-bearing capacity of the lower housing 51 and prevent the deformation of the lower housing 51; the thickness of the housing 31 in the setting is smaller than that of the upper housing 11 and the lower housing The thickness of 51 can also reduce the weight of the shell and make the vehicle lighter.
  • the thickness of the upper case 11 and the lower case 51 are the same, and the thickness of the middle case 31 is the target thickness value of the case. This arrangement is beneficial to improve the integrity of the housing.
  • the thickness of the middle casing 31 is not more than 4mm, and the thickness of the upper casing 11 and the lower casing 51 is not less than 5mm; preferably, the thickness of the middle casing 31 is 4mm, and the thickness of the upper casing 11 and the lower casing 51 The thickness is 5mm.
  • At least one of the welding surface at the lower end of the upper casing 11 and the upper welding surface of the middle casing 31 corresponding to the lower welding surface of the upper casing 11 is provided with a welding consumable boss ring, which is added by hot melting. Wide formed weld face.
  • a welding consumable boss ring which is added by hot melting. Wide formed weld face.
  • At least one of the upper welding surface of the lower casing 51 and the lower welding surface of the middle casing 31 corresponding to the upper welding surface of the lower casing 51 is provided with a welding material boss ring to widen and form the welding surface.
  • the welding material boss ring is heated and melted during welding so as to widen the formed welding surface,
  • the welding surface at the lower end of the middle casing 31 forms an outward flanging structure to further improve the welding strength between the lower casing 51 and the middle casing 31 .
  • the welding surface at the lower end of the upper casing 11, the upper welding surface of the middle casing 31, the lower welding surface of the middle casing 31, and the upper welding surface of the lower casing 51 are all provided with welding boss rings, and each welding boss ring Each includes a plurality of welding bosses.
  • the top of at least one first middle grid chamber 33 in the first middle grid chamber group is provided with an inlet, and the inlet is connected with the oil inlet 12 provided by the fuel tank housing, and the first middle grid chamber 33
  • the openings at the bottom are connected to each other to form fuel chambers; the middle grid ribs 32 are arranged and connected to form a grid shape, and the first middle grid chamber group is a sealed channel structure with openings at both ends.
  • the top of at least one of the first middle mesh chambers 33 in the first middle mesh chamber 33 is provided with an inlet, the inlet is connected with the oil inlet 12 provided by the fuel tank housing, and the bottom end of the first middle mesh chamber 33 is provided with Openings, so that after the fuel enters at least one first middle grid cavity 33 through the oil inlet 12, it flows into other first middle grid cavities 33 through the opening at the bottom of the first middle grid cavity 33, thereby realizing the
  • the fuel level in one of the grid chambers 33 is the same, that is, the sidewalls of each of the first grid chambers 33 receive a uniform fuel impact force, thereby further preventing deformation or cracking of the fuel tank due to uneven stress.
  • inlets are provided at the top of each first grid cavity 33 , and one of the inlets is connected to the oil inlet 12 provided on the fuel tank shell.
  • the top of each first middle grid cavity 33 is provided with an inlet, so that the top of each first middle grid cavity 33 communicates, thereby realizing the circulation of fuel oil above the first middle grid cavity 33.
  • the oil vapor phase generated by the fuel oil provides flow channels.
  • the oil inlet 12 is provided with a one-way valve.
  • a lower grid rib 52 structure corresponding to the lower shell area is also provided in the cavity, and the lower grid rib 52 structure is matched and sealed with the middle grid rib 32 structure; the lower grid rib 52 structure connects the cavity
  • the lower part of the body is divided into several lower grid cavities, the lower grid cavity includes the first lower grid cavity 54 groups combined with the first middle grid cavity group, the first middle grid in the first middle grid cavity group
  • the grid cavity 33 communicates with the first lower grid cavity 54 in the first lower grid cavity 54 group through the oil port; the oil flow port 53 provided by the lower grid rib 52 between the first lower grid cavity 54 communicates,
  • the first middle mesh chamber group and the first lower mesh chamber group 54 form a fuel chamber.
  • the lower grid rib 52 structure By arranging the lower grid rib 52 structure in the lower shell area, the fuel impact force on the shell corresponding to the lower shell area of the fuel tank is further reduced, and the strength of the shell corresponding to the lower shell area of the fuel tank is improved, preventing its Deformation phenomenon occurs; by connecting the oil flow ports 53 provided by the lower grid ribs 52 between the first lower grid cavities 54, the fuel oil flows in the lower housing area, not only can the fuel flow in each first lower grid The flow between the cavities 54, thereby realizing the fuel flow in each first middle grid cavity 33, can reduce the impact force of the fuel on the middle partition, and prevent the fuel tank from being deformed or cracked due to excessive impact force.
  • the lower casing 51 and the lower grid ribs 52 are injection molded at one time.
  • the thickness of the lower grid ribs 52 is guaranteed to be uniform, and the connection strength between the lower housing 51 and the lower grid ribs 52 can be improved, and the strength of the box can be improved. Mechanical strength.
  • the lower housing area includes side walls and a bottom wall, and the oil flow port 53 extends upward from the connection between the lower grid ribs 52 and the bottom wall. This arrangement can ensure the smooth flow of fuel from the oil flow port 53 .
  • the structure of the lower grid rib 52 is composed of several lower partitions arranged and connected to form a grid shape.
  • One end of the first lower grid cavity 54 is opened to communicate with the first middle grid cavity 33, and the other end is connected to the lower shell area. connected to the bottom wall.
  • the lower casing 51 below one of the first middle grid chambers 33 is provided with a boss, and the boss is installed with a fuel drain bolt 56 as a fuel drain port.
  • the upper casing 11 above one of the first middle grid chambers 33 is provided with a boss, and the boss is used for installing a fuel sensor.
  • this embodiment does not limit the shape of the oil flow port 53, for example, it can be circular, triangular, quadrangular, polygonal, etc., wherein the polygonal shape can be pentagonal, hexagonal, heptagonal, or octagonal etc.; as long as the fuel flow can be achieved.
  • the shape of the oil flow port 53 is a rectangle.
  • the cross-sectional shape of the middle grid cavity is selected from at least one of circle, triangle, quadrilateral and polygon.
  • the polygon may be a pentagon, a hexagon, a heptagon, an octagon, or the like.
  • the fuel tank is a cube
  • the middle grid rib 32 includes several middle partitions extending axially of the fuel tank
  • the cross section of the middle grid cavity is a right-angled quadrilateral.
  • the medium grid cavity formed by the first medium grid cavity group and the second medium grid cavity group has a matrix structure, and the number of rows and columns of the matrix structure are both odd numbers, and the two parts of the urea tank and the fuel tank assembly
  • the center lines all pass through the inside of the first middle grid cavity 33 or the second middle grid cavity 34, thereby avoiding the stress concentration in the middle at the middle grid rib 32, further dispersing the stress, and the number of rows and the number of columns of the matrix structure are the same. It is an odd number, which helps to release the mold evenly, so that the warping deformation of the middle grid cavity is uniform, and the molding accuracy of the product is improved.
  • the matrix structure is a 3 ⁇ 5 matrix or a 5 ⁇ 7 matrix.
  • the area of the oil flow port 53 there is no limitation on the area of the oil flow port 53, as long as the fuel flow can be realized.
  • the height of the oil flow port 53 is the same as the height of the lower casing area, and the ratio of the width to the side length of the first lower grid cavity 54 is 0.25-0.35:1, preferably 0.3:1. More preferably, the oil flow The width of the mouth is 30mm.
  • the fuel tank shell is integrally formed by blow molding/rotomolding, or formed by welding.
  • the fuel tank housing is hot melt welded after injection molding of the upper housing 11 , the middle housing 31 and the lower housing 51 respectively.
  • the upper grid rib 13 that is set in the upper housing area and the middle grid rib 32 is arranged oppositely, the upper grid rib 13 is welded with the middle grid rib 32, the upper grid rib 13 and the lower grid rib 52 The thickness is greater than the thickness of the grid rib 32 .
  • the impact force of fuel oil received by the upper casing 11 of the fuel tank is reduced, and the strength of the upper casing 11 of the fuel tank is improved to prevent it from being deformed; by setting the upper grid ribs 13 and the thickness of the lower grid rib 52 is greater than the thickness of the middle grid rib 32, so that the welding surface width of the upper grid rib 13 and the lower grid rib 52 is greater than the welding surface width of the middle housing 31, thereby increasing the connection between the upper housing 11 and The welding area between the middle casing 31, the lower casing 51 and the middle casing 31 improves the welding strength between the upper casing 11 and the middle casing 31, and the lower casing 51 and the middle casing 31.
  • the load-bearing capacity of the lower grid ribs 52 and the lower grid ribs 52 improves the supporting force of the lower grid ribs 52 to the lower housing 51 and the supporting force of the upper grid ribs 13 to the upper housing 11, further preventing the lower housing 51 and the The upper shell 11 is deformed; in addition, the thickness of the grid rib 32 in the setting is smaller than the thickness of the upper grid rib 13 and the lower grid rib 52, which can reduce the weight of the shell and make the shell lighter.
  • the thickness of the middle grid rib 32 is not greater than 4mm, and the thickness of the upper grid rib 13 and the lower grid rib 52 is not less than 5mm; more preferably, the thickness of the middle grid rib 32 is 4mm, and the upper grid rib 13 and the lower grid rib The thickness of the grid ribs 52 is 5 mm.
  • the upper casing 11 includes side walls and a top wall, and the upper grid ribs 13 are provided with oil and gas through holes 14, and the oil and gas through holes 14 extend downward from the connection between the upper grid ribs 13 and the top wall.
  • an upper channel can be provided for fuel oil, and in addition, a channel can also be provided for the flow of oil-gas.
  • the upper casing 11 and the upper grid ribs 13 are injection molded at one time.
  • the thickness of the lower grid ribs 52 is guaranteed to be uniform, and the connection strength between the upper shell 11 and the upper grid ribs 13 can be improved, and the mechanical strength of the box body can be improved.
  • the welding surface at the lower end of the middle grid rib 32 and/or the upper welding surface of the lower grid rib 52 is provided with a welding material boss ring, and the welding surface formed by hot melting is widened.
  • the welding material boss ring is heated and melted during welding to widen the formed welding surface, further Improve the welding strength between the middle grid rib 32 and the lower grid rib 52.
  • the upper welding surface of the middle grid rib 32 and/or the lower welding surface of the upper grid rib 13 is provided with a welding material boss ring, and the welding surface formed by hot melting is widened.
  • the welding material boss ring is heated and melted to widen the formed welding surface during welding, further improving the middle The welding strength between the grid rib 32 and the upper grid rib 13.
  • Embodiment 2 of the present application provides an integrated fuel tank, which includes the grid-shaped fuel tank in Embodiment 1, and the middle grid chamber also includes a second middle grid chamber group, the first The middle mesh chamber group and the second middle mesh chamber group are not connected to each other, and the middle mesh chambers in the second middle mesh chamber group are connected to each other to form a urea chamber.
  • the integrated setting of the fuel chamber and the urea chamber is realized, which reduces the volume of the integrated fuel tank and saves energy.
  • the combined weight of the two makes the vehicle lighter; in addition, by integrating the fuel chamber and the urea chamber, the heat of the fuel chamber can heat the urea chamber, realize the reuse of heat, and avoid the crystallization of urea liquid in the urea chamber .
  • the middle grid ribs 32 in the second middle grid chamber group are provided with urea flow ports 37, so that the urea liquid in each second middle grid chamber 34 communicates with each other.
  • this embodiment does not limit the shape of the urea flow port 37, for example, it can be circular, triangular, quadrangular, polygonal, etc., wherein the polygonal shape can be pentagonal, hexagonal, heptagonal, or octagonal. etc.; as long as the circulation of urea can be realized, the urea flow port 37 is rectangular in this embodiment.
  • this embodiment does not limit the position of the urea flow port 37, for example, it can be arranged at the lower or middle part of the middle grid rib 32 in the second middle grid cavity group, preferably at the lower part.
  • this embodiment does not limit the arrangement of the first medium-grid cavity group and the second medium-grid cavity group, as long as the first medium-grid cavity group and the second medium-grid cavity group can achieve Not connected to each other.
  • the second middle grid cavity 34 in the second middle grid cavity group is arranged symmetrically, preferably, the second middle grid cavity 34 is arranged diagonally to ensure that the gravity is evenly distributed, and further prevent the box body from being subjected to force. The phenomenon of deformation occurs due to unevenness, and the setting method is convenient for processing, and the wall thickness is uniform.
  • an inlet is provided at the top of at least one second middle grid chamber 34 in the second middle grid chamber group, and the inlet is communicated with the urea feeding port 15 provided on the fuel tank shell, so as to replenish urea into the urea chamber.
  • the urea feeding port 15 is provided with a one-way valve.
  • the bottom ends of the second middle grid chambers 34 in the second middle grid chamber group are sealed, and the side walls of the second middle grid chambers 34 communicate with each other to form a urea chamber.
  • connection surface between the bottom wall of the second middle grid chamber 34 and the middle casing 31 and/or the connection surface between the bottom wall of the second middle grid chamber 34 and the middle grid rib 32 are higher than the middle.
  • the bottom wall of the second middle grid cavity 34 is integrally formed with the middle grid ribs 32 by injection molding. This setting method can prevent the interpenetration of urea liquid and fuel oil, prevent the fuel oil from penetrating into the urea chamber through the weld to pollute the urea liquid, and prevent the urea liquid from penetrating into the fuel chamber to cause damage to the engine.
  • the second middle mesh cavity 34 is integrally formed by injection molding.
  • the wall thickness of the middle grid ribs 32 of the second middle grid cavity 34 is guaranteed to be uniform, and the strength of the second middle grid cavity 34 is improved.
  • the upper housing 11 is provided with a groove for installing the urea sensor 58 so that the top of the urea sensor 58 does not exceed the top of the groove, which is beneficial to protect the urea sensor 58 and increase the volume of the tank.
  • the difference between embodiment 3 and embodiment 2 is that the bottom wall of one of the second middle mesh chambers 34 sinks into the lower mesh chamber to form a sinking chamber 35, which sinks
  • the cavity 35 and the second middle mesh cavity 34 above it are used for installing the urea sensor 58
  • the bottom wall of the sinking cavity 35 is provided with a urea sewage outlet
  • the urea sewage outlet is equipped with a urea sewage bolt 57 .
  • the side wall of the sinking cavity 35 can be the lower grid rib 52, or can be integrally formed with the middle grid rib 32 by injection molding, and the bottom wall of the sinking cavity 35 can be the lower shell 51, or can be formed integrally with the middle grid rib 32 by injection molding.
  • the middle grid rib 32 is integrally formed.
  • the side wall and the bottom wall of the sinking chamber 35 are formed integrally with the center grid rib 32 by injection molding.
  • An annular boss 36 is provided at the opening of the sinking chamber 35 , and the sinking chamber 35 is connected to the side wall of the middle shell 31 and/or the middle grid rib 32 through the ring boss 36 .
  • This setting method can ensure that the connection between the sinking cavity 35 and the middle shell 31 and/or the middle grid rib 32 is far away from the weld seam, further avoiding interpenetration of urea liquid and fuel oil from the weld seam.
  • the sinking cavity 35 is located on the diagonal of the second middle grid cavity group, which further ensures that the gravity distribution of the box is even.
  • the lower grid cavity includes a second lower grid cavity 55 group paired with the second middle grid cavity group, except for the second lower grid cavity corresponding to the sinking cavity 35 in the second lower grid cavity 55 group Except for the chamber 55 , the rest of the second lower grid chambers 55 are in communication with the first lower grid chambers 54 , so that fuel can flow between the second lower grid chambers 55 and the first lower grid chambers 54 .
  • the integrated fuel tank and urea tank are manufactured by respectively injecting the upper shell 11, the middle shell 31, and the lower shell 51, and then welding the upper shell 11, the middle shell 31, and the lower shell 51 in sequence .
  • the material of the integrated fuel tank and the urea tank can be any material that meets the strength requirements and oil resistance, such as resin, specifically such as impermeable polyamide material, polyethylene, polystyrene and the like.
  • This embodiment provides a manufacturing process for manufacturing a grid-shaped fuel tank or an integrated fuel tank, wherein the grid-shaped fuel tank or an integrated fuel tank is the grid-shaped fuel tank in Embodiment 1 or the integrated fuel tank in Embodiment 2
  • the fuel tank, the manufacturing process includes the following steps:
  • the raw materials are melted, and the raw materials including nylon and polyethylene can be added with auxiliary additives such as compatibilizers, toughening agents and antioxidants.
  • auxiliary additives such as compatibilizers, toughening agents and antioxidants.
  • the compatibilizer can be grafted with maleic anhydride, and the toughening agent can be POE.
  • the upper shell 11, the middle shell 31 and the lower shell 51 are produced by injection molding.
  • the injection molding adopts a high-precision servo injection molding machine. According to the melting point of the material, the injection pressure, injection speed and molding temperature are controlled, and the injection pressure is ⁇ 90MPa.
  • the molding temperature is greater than the melting point of the raw material and less than 280°C, the holding time is greater than 5s, and the cooling time is greater than 30s.
  • the upper shell 11, the middle shell 31 and the lower shell 51 are connected by welding to make it a shell.
  • the welding adopts infrared welding, and the heat fusion depth is not less than 0.8mm.
  • the temperature is not lower than 270°C, the melting time is not less than 50s, and the curing time is not less than 20s.
  • the shell material selected in this embodiment can ensure that the upper shell 11, the middle shell 31 and the lower shell 51 have excellent mechanical properties, heat resistance and wear resistance, and excellent low temperature impact resistance, ensuring that the product is Collisions in cold areas will not cause leakage; and through injection molding and welding processes, the upper shell 11, the middle shell 31, the lower shell 51, the upper grid ribs 13, the middle grid ribs 32 and the lower grid ribs 52 The thickness is uniform, and the connection strength at the welding seam is high, and the upper shell 11, the middle shell 31 and the lower shell 51 with strong deformation resistance are manufactured.

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Abstract

本申请公开了一种网格状油箱，属于汽车零部件领域。该网格状油箱包括：油箱壳体，所述油箱壳体围成包括燃油腔的腔体，所述油箱壳体包括上部的上壳体区域、中部的中壳体区域和下部的下壳体区域；所述腔体内对应所述中壳体高度区域设置中网格筋结构，所述中网格筋结构将所述腔体中部分隔成若干个中网格腔，所述中网格腔之间在径向上不连通，所述中网格腔包括的第一中网格腔组的底端设置通油口以相互连通形成所述燃油腔。该网格状油箱无需单独设计防浪涌隔板，且能够显著降低燃油的浪涌现象；此外，可以防止箱体受到冲击外力时出现变形或开裂现象；另外，燃油在下壳体区域内流动，从而大大减小了燃油流动的冲击力，减弱了燃油的"浪涌"现象。

Description

一种网格状油箱 技术领域
本申请涉及一种网格状油箱，属于汽车零部件领域。
背景技术
随着汽车工业的快速发展和汽车环保要求的提高，燃油箱作为汽车部件中重要的安全件和法规件，对其进行结构优化和性能提高成为各大汽车制造商竞相探讨和解决的问题。
在车辆行驶过程中，遇到路面颠簸或启停、拐弯时，其燃油箱内部的燃油会发生晃动而前涌或后涌，从而对燃油箱箱体产生冲击，导致燃油箱出现变形或者使油箱焊接部位出现开裂现象而漏油，影响行车安全；此外，燃油的浪涌还会导致整个车辆重心偏移，直接影响行车安全，甚至出现油料的外溢现象；且燃油涌浪拍打油箱内壁从而产生一定的噪音，严重的降低了人们的驾驶体验。
目前，为了减少燃油箱内部燃油的冲击力，通常在油箱内部设置隔板，现有技术通常将隔板与油箱壁焊接，中部开孔过油，然而这种焊接结构容易使隔板与箱体的焊缝应力集中，车体在行进过程中，燃油的浪涌会导致隔板与箱体的焊接位置开裂，防浪涌现象不理想。
发明内容
为了解决上述问题，本申请提出了一种网格状油箱。该网格状油箱通过将腔体中部分隔成若干个中网格腔，从而使每个中网格腔的侧壁共同分担燃油流动的冲击力，因此无需单独设计防浪涌隔板，且能够显著降低燃油的浪涌现象；此外，中网格筋可以增加了油箱的整体刚性，防止箱体受到冲击外 力时出现变形或开裂现象；另外，通过在第一中网格腔组的底端设置通油口以互相连通形成燃油箱，使燃油在下壳体区域内流动，从而大大减小了燃油流动的冲击力，减弱了燃油的“浪涌”现象。
根据本申请的一个方面，提供了一种网格状油箱，其包括：油箱壳体，所述油箱壳体围成包括燃油腔的腔体，所述油箱壳体包括上部的上壳体区域、中部的中壳体区域和下部的下壳体区域；
所述腔体内对应所述中壳体高度区域设置中网格筋结构，所述中网格筋结构将所述腔体中部分隔成若干个中网格腔，所述中网格腔之间在径向上不连通，所述中网格腔包括的第一中网格腔组的底端设置通油口以相互连通形成所述燃油腔。
可选地，所述第一中网格腔组中的至少一个第一中网格腔的顶端设置入口，所述入口与所述油箱壳体设置的进油口连接，第一中网格腔的底端设置开口相互连通形成所述燃油腔；
所述中网格筋结构由若干个中隔板排列连接形成网格状，所述第一中网格腔组为两端开口的密封通道状结构。
可选地，所述腔体内还设置与所述下壳体区域对应的下网格筋结构，所述下网格筋结构与所述中网格筋结构对合密封连接；
所述下网格筋结构将所述腔体的下部分隔成若干个下网格腔，所述下网格腔包括与所述第一中网格腔组对合的第一下网格腔组，所述第一中网格腔组中的第一中网格腔通过通油口与所述第一下网格腔组中的第一下网格腔连通；
所述第一下网格腔之间的下网格筋设置的油流动口连通，所述第一中网格腔组和所述第一下网格腔组形成燃油腔。
可选地，所述下壳体区域包括侧壁和底壁，所述油流动口自所述下网格筋与所述底壁连接处向上延伸。
可选地，所述中网格腔的横截面形状选自三角形、四边形、圆形、五边形、六边形和多边形中的至少一种。
可选地，所述油箱为立方体，所述中网格筋包括沿所述油箱轴向延伸的若干个中隔板，所述中网格腔的横截面为直角四边形。
可选地，所述油箱壳体为吹塑/滚塑一体成形，或焊接形成。
根据本申请的另一个方面，提供了一种集成式油箱，其包括上述任一项所述的网格状油箱，所述中网格腔还包括第二中网格腔组，所述第一中网格腔组和第二中网格腔组相互之间不连通，所述第二中网格腔组中的中网格腔之间相互连通形成尿素腔。
可选地，所述第二中网格腔组中的第二中网格腔的底端密封，所述第二中网格腔的侧壁之间相互连通形成所述尿素腔。
可选地，所述第二中网格腔为注塑一体成形。
本申请能产生的有益效果包括但不限于：
1.本申请所提供的网格状油箱，通过设置中网格筋结构将腔体中部分隔成若干个中网格腔，中网格腔之间在径向上不连通，每个中网格腔内均装有燃油，从而使每个中网格腔的侧壁共同分担燃油流动的冲击力，因此无需单独设计防浪涌隔板，且能够显著降低燃油的浪涌现象；此外，中网格筋可以增加了油箱的整体刚性，防止箱体受到冲击外力时出现变形或开裂现象；此外，由于汽车在行驶过程中，燃油冲击频次最高、冲击力最大的区域主要集中在油箱中部，因此通过在第一中网格腔组的底端设置通油口以互相连通形成燃油箱，使燃油在下壳体区域内流动，从而大大减小了燃油流动的冲击力，减弱了燃油的“浪涌”现象。
2.本申请所提供的网格状油箱，通过使第一中网格腔中的至少一个第一中网格腔的顶端设置入口，入口与油箱壳体设置的进油口连接，且第一中网格腔的底端设置开口，从而使燃油经进油口进入至少一个第一中网格腔后， 通过第一中网格腔底端的开口流至其他第一中网格腔内，从而实现每个第一中网格腔内的燃油液面相同，即每个第一中网格腔的侧壁承受的燃油冲击力均匀，从而进一步防止油箱因引力不均匀而导致的变形或开裂现象。
3.本申请所提供的网格状油箱，通过在下壳体区域内设置下网格筋结构，进一步减小了油箱下壳体区域对应的壳体受到的燃油冲击力，且提高了油箱下壳体区域对应的壳体的强度，防止其出现变形现象；通过使第一下网格腔之间的下网格筋设置的油流动口连通，使燃油在下壳体区域内流动，不仅可以实现燃油在每个第一下网格腔之间的流动，进而实现燃油在每个第一中网格腔内的流动，而且可以减少中隔板受到的燃油冲击力，防止油箱因冲击力过大而出现变形或开裂现象。
4.本申请所提供的网格状油箱，通过设置中网格腔的横截面为直角四边形，从而进一步提高中网格腔的结构稳定性，增加油箱的强度，防止油箱出现变形现象。
5.本申请所提供的集成式油箱，通过设置第二中网格腔组，且第二中网格腔组与第一中网格腔组不连通，从而实现燃油腔和尿素腔的一体设置，减小了集成式油箱的体积，减轻了二者的重量综合，使得车辆更加轻量化；；此外，通过将燃油腔和尿素腔一体设置，使燃油腔的热量对尿素腔内加热，实现热量的再利用，避免尿素腔内的尿素液结晶。
6.本申请所提供的集成式油箱，通过设置第二中网格腔组中的第二中网格腔的底端密封，从而实现第一中网格腔组和第二中网格腔组之间的互不连通，且能够使燃油在第二中网格腔组下方流动连通，减少燃油的流动阻力。
附图说明
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的 不当限定。在附图中：
图1为本申请实施例1及2涉及的网格状油箱立体示意图；
图2为本申请实施例1及2涉及的网格状油箱正视示意图；
图3为本申请实施例1及2涉及的网格状油箱A-A剖视图；
图4为本申请实施例1及2涉及的网格状油箱上壳体示意图；
图5为本申请实施例1及2涉及的网格状油箱中壳体示意图；
图6为本申请实施例1及2涉及的网格状油箱中壳体俯视图；
图7为本申请实施例1及2涉及的网格状油箱B-B剖视图；
图8为本申请实施例1及2涉及的网格状油箱C-C剖视图；
图9为本申请实施例1及2涉及的网格状油箱下壳体与中壳体组合后的示意图；
图10为本申请实施例1及2涉及的网格状油箱上壳体示意图；
图11为本申请实施例3涉及的网格状油箱正剖面图；
图12为图11中A部放大图；
图13为本申请实施例3涉及的网格状油箱中壳体示意图；
图14为本申请实施例3涉及的网格状油箱中壳体俯视图；
图15为本申请实施例3涉及的网格状油箱D-D剖视图；
图16为本申请实施例3涉及的网格状油箱E-E剖视图。
部件和附图标记列表：
11、上壳体；12、进油口；13、上网格筋；14、油气通孔；15、尿素加料口；31、中壳体；32、中网格筋；33、第一中网格腔；34、第二中网格腔；35、下沉腔；36、环形凸台；37、尿素流动口；51、下壳体；52、下网格筋；53、油流动口；54、第一下网格腔；55、第二下网格腔；56、燃油排污螺栓；57、尿素排污螺栓；58、尿素传感器。
具体实施方式
为了更清楚的阐释本申请的整体构思，下面结合说明书附图以示例的方式进行详细说明。
为了能够更清楚地理解本申请的上述目的、特征和优点，下面结合附图和具体实施方式对本申请进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本申请，但是，本申请还可以采用其他不同于在此描述的其他方式来实施，因此，本申请的保护范围并不受下面公开的具体实施例的限制。
另外，在本申请的描述中，需要理解的是，术语“中心”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多该特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接，还可以是通信；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不是必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。
本申请的网格状油箱，可以只作为油箱，也可以作为集成式油箱和尿素箱，或油箱与其他功能性腔体集成。网格状油箱可以用于但不限于机动车的储油部件。下述实施例中的附图以集成式油箱和尿素箱为例进行说明网格状油箱的结构，但不限于集成式油箱和尿素箱。
作为一种实施方式，参考图1，集成式油箱和尿素箱即网格状油箱包括油箱壳体，油箱壳体内具有尿素腔和燃油腔，油箱壳体设置尿素加料口15和进油口12，所述网格状油箱还包括分别与尿素腔连通的尿素传感器58和尿素泵，分别和燃油腔连通的燃油油位传感器和燃油泵。燃油不限于汽油、柴油等。
实施例1
如图1-10所示，本申请的实施例1公开了一种网格状油箱，其包括：油箱壳体，油箱壳体围成包括燃油腔的腔体，油箱壳体包括上部的上壳体区域、中部的中壳体区域和下部的下壳体区域；腔体内对应中壳体31高度区域设置中网格筋32结构，中网格筋32结构将腔体中部分隔成若干个中网格腔，中网格腔之间在径向上不连通，中网格腔包括的第一中网格腔组的底端设置通油口以相互连通形成燃油腔。通过设置中网格筋32结构将腔体中部分隔成若干个中网格腔，中网格腔之间在径向上不连通，第一中网格腔组内的每个第一中网格腔33内均装有燃油，从而使每个中网格腔的侧壁共同分担燃油流动 的冲击力，因此无需单独设计防浪涌隔板，且能够显著降低燃油的浪涌现象；此外，中网格筋32可以增加了油箱的整体刚性，防止箱体受到冲击外力时出现变形或开裂现象；此外，由于汽车在行驶过程中，燃油冲击频次最高、冲击力最大的区域主要集中在油箱中部，因此通过在第一中网格腔组的底端设置通油口以互相连通形成燃油箱，使燃油在下壳体区域内流动，从而大大减小了燃油流动的冲击力，减弱了燃油的“浪涌”现象。
具体的，上壳体区域、中壳体区域和下壳体区域的高度之比为(0.8-1.2):(4-6):(0.8-1.2)。优选的，上壳体区域、中壳体区域和下壳体区域的高度之比为1:5:1。该设置方式能够保证燃油在下壳体区域流动顺畅，且能够进一步减小燃油的冲击力，大大减弱油箱所受到的冲击力，延长油箱的使用寿命。
具体的，油箱壳体可以为任意加工方式加工而成，例如可以为吹塑一体成型，也可以由多个壳体分别注塑后焊接而成。可以理解的是，任意加工方式加工而成的油箱壳体，都包括上部的上壳体区域、中部的中壳体区域和下部的下壳体区域。具体的，为了进一步提高第一中网格腔组强度，且提高中网格筋32结构的壁厚均匀性，第一中网格腔组注塑一体成型。
作为一种实施方式，油箱壳体包括上壳体11、中壳体31和下壳体51，上壳体11、中壳体31和下壳体51分别焊接，以形成包括燃油腔的腔体。该油箱壳体用注塑后焊接成型，不仅壳体的壁厚均匀、机械强度高，并且通过设置上壳体11、中壳体31和下壳体51三个壳体分别焊接的方式，将焊接的应力分散在壳体的上下两端，一方面降低了壳体的焊接部分应力集中，避免了焊接部分开裂的情况；另一方面壳体因中部区域承受液体如燃油的晃动的流动冲击力最大，避免在壳体中间部位设置焊接缝，不仅提高壳体的整体强度，并且避免了壳体焊接部分受到冲击力而开裂的情况，提高油箱的使用寿命。
具体的，上壳体11形成上壳体区域，中壳体31形成中壳体区域，下壳体51形成下壳体区域。
作为一种实施方式，中壳体31的高度占壳体总高度的大于1/3。通过设置中壳体31的高度占壳体总高度的大于1/3，从而将中壳体31与上壳体11的焊缝、中壳体31与下壳体51的焊缝设置在壳体的上下两端，使焊缝远离壳体受冲击力最大的区域，从而将焊接的应力分散在壳体的上下两端，避免焊接的焊缝处应力集中而导致的开裂现象。
优选地，上壳体11、中壳体31和下壳体51的高度之比为(0.8-1.2):(4-6):(0.8-1.2)；更优选的，上壳体11、中壳体31和下壳体51的高度之比为1:5:1，所述上壳体和所述下壳体的高度均为50-80mm。通过设置上壳体11、中壳体31和下壳体51之间的高度比，便于控制因注塑特性而发生的产品变形量，此外，由于箱体的应力主要集中在中壳体31，因此需要控制中壳体31的高度适中，保证应力分散在壳体的各个区域提高壳体的整体强度，延长油箱的使用寿命。
作为一种实施方式，上壳体11、中壳体31和下壳体51分别注塑成型后热熔焊接。通过将上壳体11、中壳体31和下壳体51分别注塑成型，从而分别提高了上壳体11、中壳体31和下壳体51的壁厚均匀性，提高了其机械强度，进一步延长了油箱的使用寿命。
作为一种实施方式，上壳体11和下壳体51的厚度大于中壳体31的厚度，以使得上壳体11和下壳体51的焊接面宽度大于中壳体31的焊接面宽度。通过设置上壳体11的厚度大于中壳体31的厚度，使上壳体11的焊接面宽度大于中壳体31的焊接面宽度，从而能够增加上壳体11和中壳体31之间的焊接面积，使中壳体31的焊接面和上壳体11的焊接面完全焊接在一起，防止中壳体31和下壳体51之间出现漏焊等现象，此外，上壳体11加厚还可以提高上壳体11的承载力，防止上壳体11因承载电器元器件而出现变形现象；通 过设置下壳体51的厚度大于中壳体31的厚度，使下壳体51的焊接面宽度大于中壳体31的焊接面宽度，增加了下壳体51和中壳体31之间的焊接面积，提高了下壳体51和中壳体31之间的焊接强度，此外，下壳体51位于壳体的底部，因此设置下壳体51底部加厚可以提高下壳体51的承重能力，防止下壳体51出现变形；设置中壳体31的厚度小于上壳体11和下壳体51的厚度，还可以减轻壳体的重量，使车辆更加轻量化。
具体的，上壳体11和下壳体51的厚度相同，中壳体31的厚度为壳体目标厚度值。该设置方式有利于提高壳体的一体性。
优选地，中壳体31厚度为不大于4mm，上壳体11和下壳体51的厚度为不小于5mm；优选地，中壳体31厚度为4mm，上壳体11和下壳体51的厚度为5mm。通过设置上壳体11、中壳体31和下壳体51的厚度可以提高中壳体31和上壳体11之间或中壳体31和下壳体51之间的焊接面积，提高壳体的焊接强度，防止焊缝处因受到冲击力而开裂，同时，防止壳体过重，使车辆更加轻量化。
作为一种实施方式，焊接前的，上壳体11下端焊接面和与上壳体11下端焊接面对应的中壳体31上端焊接面中至少一个设置焊材凸台环，以热熔加宽形成的焊接面。通过在焊接前的上壳体11下端焊接面和/或中壳体31上端焊接面上设置至少一个焊材凸台环，焊材凸台环在焊接时受热熔化从而加宽形成的焊接面，使中壳体31上端焊接面形成向外的翻边结构，进一步提高上壳体11和中壳体31之间的焊接强度。
作为一种实施方式，焊接前的，下壳体51上端焊接面和与下壳体51上端焊接面对应的中壳体31下端焊接面中至少一个设置焊材凸台环，以加宽形成的焊接面。通过在焊接前的下壳体51上端焊接面和/或中壳体31下端焊接面上设置至少一个焊材凸台环，焊材凸台环在焊接时受热熔化从而加宽形成的焊接面，使中壳体31下端焊接面形成向外的翻边结构，进一步提高下壳体 51和中壳体31之间的焊接强度。
具体的，焊接前的上壳体11下端焊接面、中壳体31上端焊接面、中壳体31下端焊接面、下壳体51上端焊接面均设置焊接凸台环，每个焊接凸台环均包括多个焊接凸台。
作为一种实施方式，第一中网格腔组中的至少一个第一中网格腔33的顶端设置入口，入口与油箱壳体设置的进油口12连接，第一中网格腔33的底端设置开口相互连通形成燃油腔；中网格筋32结构由若干个中隔板排列连接形成网格状，第一中网格腔组为两端开口的密封通道状结构。通过使第一中网格腔33中的至少一个第一中网格腔33的顶端设置入口，入口与油箱壳体设置的进油口12连接，且第一中网格腔33的底端设置开口，从而使燃油经进油口12进入至少一个第一中网格腔33后，通过第一中网格腔33底端的开口流至其他第一中网格腔33内，从而实现每个第一中网格腔33内的燃油液面相同，即每个第一中网格腔33的侧壁承受的燃油冲击力均匀，从而进一步防止油箱因应力不均匀而导致的变形或开裂现象。
具体的，每个第一中网格腔33的顶端均设置入口，其中一个入口与油箱壳体设置的进油口12连接。通过使每个第一中网格腔33的顶端均设置入口，从而使每个第一中网格腔33的顶端连通，从而实现燃油在第一中网格腔33上方的流通，此外，为燃油产生的油气气相提供流动通道。
具体的，进油口12设置有单向阀。
作为一种实施方式，腔体内还设置与下壳体区域对应的下网格筋52结构，下网格筋52结构与中网格筋32结构对合密封连接；下网格筋52结构将腔体的下部分隔成若干个下网格腔，下网格腔包括与第一中网格腔组对合的第一下网格腔54组，第一中网格腔组中的第一中网格腔33通过通油口与第一下网格腔54组中的第一下网格腔54连通；第一下网格腔54之间的下网格筋52设置的油流动口53连通，第一中网格腔组和第一下网格腔54组形成燃油腔。 通过在下壳体区域内设置下网格筋52结构，进一步减小了油箱下壳体区域对应的壳体受到的燃油冲击力，且提高了油箱下壳体区域对应的壳体的强度，防止其出现变形现象；通过使第一下网格腔54之间的下网格筋52设置的油流动口53连通，使燃油在下壳体区域内流动，不仅可以实现燃油在每个第一下网格腔54之间的流动，进而实现燃油在每个第一中网格腔33内的流动，而且可以减少中隔板受到的燃油冲击力，防止油箱因冲击力过大而出现变形或开裂现象。
优选地，下壳体51与下网格筋52一次注塑成型。通过设置下壳体51和下网格筋52一次注塑成型，从而保证下网格筋52的厚度均匀，且能够提高下壳体51与下网格筋52之间的连接强度，提高箱体的机械强度。
作为一种实施方式，下壳体区域包括侧壁和底壁，油流动口53自下网格筋52与底壁连接处向上延伸。该设置方式可以保证燃油从油流动口53顺利流动。
具体的，下网格筋52结构由若干个下隔板排列连接形成网格状，第一下网格腔54的一端开口从而与第一中网格腔33连通，另一端与下壳体区域的底壁相连。
具体的，其中一个第一中网格腔33下方的下壳体51设置凸台，该凸台安装有燃油排污螺栓56，以作为燃油排污口。
具体的，其中一个第一中网格腔33上方的上壳体11设置凸台，该凸台用于安装燃油传感器。
具体的，本实施例对油流动口53的形状不做限制，例如可以为圆形、三角形、四边形和多边形等，其中，多边形可以为五边型、六边形、七边形、八边形等；只要能实现燃油的流动即可。本实施例中油流动口53的形状为长方形。
作为一种实施方式，中网格腔的横截面形状选自圆形、三角形、四边形 和多边形中的至少一种。其中，多边形可以为五边型、六边形、七边形、八边形等。具体的，油箱为立方体，中网格筋32包括沿油箱轴向延伸的若干个中隔板，中网格腔的横截面为直角四边形。通过设置中网格腔的横截面为直角四边形，从而进一步提高中网格腔的结构稳定性，增加油箱的强度，防止油箱出现变形现象。
具体的，第一中网格腔组和第二中网格腔组共同形成的中网格腔为矩阵结构，矩阵结构的行数和列数均为奇数，且尿素箱和油箱总成的两条中线均穿过第一中网格腔33或第二中网格腔34内部，从而避免中部的应力集中在中网格筋32处，进一步分散应力，且矩阵结构的行数和列数均为奇数，有助于脱模均匀，使中网格腔的翘曲变形量均匀一致，提高产品的成型精度。
优选的，矩阵结构为3×5矩阵或5×7矩阵。
具体的，本实施例对油流动口53的面积不做限制，只要能实现燃油的流动即可。进一步，油流动口53的高度与下壳体区域的高度相同，宽度与第一下网格腔54的边长之比为0.25～0.35：1，优选为0.3：1，更优选的，油流动口的宽度为30mm。该设置方式可以减小燃油的流动阻力，防止因阻力过大而导致下隔板出现变形现象；同时保证下网格筋52与下壳体51之间具有足够大的焊接面积，提高焊接强度。
作为一种实施方式，油箱壳体为吹塑/滚塑一体成形，或焊接形成。优选的，油箱壳体为上壳体11、中壳体31和下壳体51分别注塑成型后热熔焊接。
作为一种实施方式，上壳体区域内设置与中网格筋32对合设置的上网格筋13，上网格筋13与中网格筋32焊接，上网格筋13和下网格筋52的厚度大于中网格筋32的厚度。通过在上壳体11内设置下网格筋52，减小了油箱上壳体11受到的燃油冲击力，且提高了油箱上壳体11的强度，防止其出现变形现象；通过设置上网格筋13和下网格筋52的厚度大于中网格筋32的厚度，使上网格筋13和下网格筋52的焊接面宽度大于中壳体31的焊接面宽度， 从而增加上壳体11与中壳体31、下壳体51与中壳体31之间的焊接面积，提高上壳体11与中壳体31、下壳体51与中壳体31之间的焊接强度，此外，能够提高下网格筋52和下网格筋52的承重能力，提高下网格筋52对下壳体51的支撑力及上网格筋13对上壳体11的支撑力，进一步防止下壳体51和上壳体11变形；此外，设置中网格筋32的厚度小于上网格筋13和下网格筋52的厚度，可以减轻壳体的重量，使壳体更加轻量化。
具体的，中网格筋32的厚度不大于4mm，上网格筋13和下网格筋52的厚度不小于5mm；更优选的，中网格筋32的厚度为4mm，上网格筋13和下网格筋52的厚度均为5mm。
作为一种实施方式，上壳体11包括侧壁和顶壁，上网格筋13设置油气通孔14，油气通孔14自上网格筋13与顶壁连接处向下延伸。通过设置油气通孔14，可以保证为燃油提供上通道，此外，还可以为油气的流动提供通道。
具体的，上壳体11与上网格筋13一次注塑成型。通过设置上壳体11和上网格筋13一次注塑成型，从而保证下网格筋52的厚度均匀，且能够提高上壳体11与上网格筋13之间的连接强度，提高箱体的机械强度。
作为一种实施方式，焊接前的，中网格筋32下端焊接面和/或下网格筋52上端焊接面设置焊材凸台环，以热熔加宽形成的焊接面。通过在焊接前的中网格筋32下端焊接面和/或下网格筋52上端焊接面设置焊材凸台环，焊材凸台环在焊接时受热熔化从而加宽形成的焊接面，进一步提高中网格筋32和下网格筋52之间的焊接强度。
作为一种实施方式，焊接前的，中网格筋32上端焊接面和/或上网格筋13下端焊接面设置焊材凸台环，以热熔加宽形成的焊接面。通过在焊接前的中网格筋32上端焊接面和/或上网格筋13下端焊接面设置焊材凸台环焊材凸台环在焊接时受热熔化从而加宽形成的焊接面，进一步提高中网格筋32和上网格筋13之间的焊接强度。
实施例2
如图1-10所示，本申请的实施例2提供了一种集成式油箱，其包括实施例1中的网格状油箱，中网格腔还包括第二中网格腔组，第一中网格腔组和第二中网格腔组相互之间不连通，第二中网格腔组中的中网格腔之间相互连通形成尿素腔。通过设置第二中网格腔组，且第二中网格腔组与第一中网格腔组不连通，从而实现燃油腔和尿素腔的一体设置，减小了集成式油箱的体积，减轻了二者的重量综合，使得车辆更加轻量化；此外，通过将燃油腔和尿素腔一体设置，使燃油腔的热量对尿素腔内加热，实现热量的再利用，避免尿素腔内的尿素液结晶。
具体的，第二中网格腔组内的中网格筋32设置有尿素流动口37，以使得每个第二中网格腔34内的尿素液互相连通。具体的，本实施例对尿素流动口37的形状不做限制，例如可以为圆形、三角形、四边形和多边形等，其中，多边形可以为五边型、六边形、七边形、八边形等；只要能实现尿素的流通即可，本实施例中尿素流动口37为长方形。
具体的，本实施例对尿素流动口37的位置不做限制，例如可以设置在第二中网格腔组内的中网格筋32的下部或中部，优选为下部。
具体的，本实施例对第一中网格腔组和第二中网格腔组的排布方式不做限制，只要能实现第一中网格腔组和第二中网格腔组之间互不连通即可。优选的，第二中网格腔组中的第二中网格腔34对称设置，优选的，第二中网格腔34沿对角设置，以保证重力分布均匀，进一步防止箱体因受力不均而出现变形现象，且该设置方式便于加工，壁厚均匀。
具体的，第二中网格腔组中的至少一个第二中网格腔34的顶端设置入口，且该入口与油箱壳体设置的尿素加料口15连通，以便于向尿素腔内补充尿素。
具体的，尿素加料口15设置有单向阀。
作为一种实施方式，第二中网格腔组中的第二中网格腔34的底端密封， 第二中网格腔34的侧壁之间相互连通形成尿素腔。通过设置第二中网格腔组中的第二中网格腔34的底端密封，从而实现第一中网格腔组和第二中网格腔组之间的互不连通，且能够使燃油在第二中网格腔组下方流动连通，减少燃油的流动阻力。
作为一种实施方式，第二中网格腔34的底壁与中壳体31的连接面和/或第二中网格腔34的底壁与中网格筋32的连接面均高于中壳体31下端的焊接面和/或中网格筋32下端的焊接面。第二中网格腔34的底壁与中网格筋32注塑一体成型。该设置方式可以方式尿素液和燃油的互渗，防止燃油通过焊缝渗透至尿素腔内污染尿素液，同时防止尿素液渗透至燃油腔内对发动机产生损害。
作为一种实施方式，第二中网格腔34为注塑一体成形。通过将第二中网格腔34注塑一体成型，保证第二中网格腔34的中网格筋32壁厚均匀，提高了第二中网格腔34的强度。
具体的，上壳体11设置有凹槽，该凹槽用于安装尿素传感器58，使尿素传感器58的顶端不超过凹槽的顶端，有利于保护尿素传感器58，且增大箱体的容积。
实施例3
如图11-16所示，实施例3与实施例2的不同之处在于，其中一个第二中网格腔34的底壁下沉至下网格腔内，形成下沉腔35，下沉腔35与其上方的第二中网格腔34用于安装尿素传感器58，下沉腔35的底壁开设有尿素排污口，尿素排污口安装有尿素排污螺栓57。通过设置下沉腔35下沉至下网格腔内，不仅可以为尿素传感器58留出其所需的安装高度，而且可以增大尿素腔的容积，使下沉腔35内留有一定液位的尿素液，以保证尿素滤芯浸泡在尿素液中，防止尿素在滤芯处结晶而堵塞滤芯。
具体的，下沉腔35的侧壁可以为下网格筋52，也可以通过注塑与中网格 筋32一体成型，下沉腔35的底壁可以为下壳体51，也可以通过注塑与中网格筋32一体成型。本实施例中，下沉腔35的侧壁和底壁均是通过注塑与中网格筋32一体成型而形成的。下沉腔35的开口处设置有环形凸台36，下沉腔35通过环形凸台36与中壳体31的侧壁和/或中网格筋32相连。该设置方式可以保证下沉腔35与中壳体31和/或中网格筋32的连接处远离焊缝，进一步避免尿素液和燃油从焊缝处发生互渗。
具体的，下沉腔35位于第二中网格腔组的对角线上，进一步保证箱体的重力分布均匀。
具体的，下网格腔包括与第二中网格腔组对合的第二下网格腔55组，第二下网格腔55组中除下沉腔35所对应的第二下网格腔55以外，其余的第二下网格腔55均与第一下网格腔54组连通，以使燃油在第二下网格腔55与第一下网格腔54组之间流通。
实施例3
集成式油箱和尿素箱通过将上壳体11部分、中壳体31部分、和下壳体51部分分别注塑后，再将上壳体11、中壳体31和下壳体51依次焊接制得。其中，集成式油箱和尿素箱的材质可以为任意符合强度要求和耐油的材质，如树脂，具体的如防渗透聚酰胺材质、聚乙烯、聚苯乙烯等。
本实施例提供了一种用于制造网格状油箱或集成式油箱的制作工艺，其中，网格状油箱或集成式油箱为实施例1中的网格状油箱或实施例2中的集成式油箱，该制作工艺包括以下步骤：
(1)原料熔融，将包括尼龙和聚乙烯的原料，再可以添加辅助添加剂如相容剂、增韧剂和抗氧剂等，相容剂可以为马来酸酐接枝，增韧剂可以为POE。
(2)通过注塑的制作上壳体11、中壳体31和下壳体51，注塑采用高精度伺服注塑机，根据材料的熔点，控制注射压力、注射速度和成型温度，注射压力≤90MPa，成型温度大于原料熔点且小于280℃，保压时间大于5s，冷 却时间大于30s。
(3)焊接，将上壳体11、中壳体31和下壳体51采用焊接的方式进行连接，使之成为一个壳体，焊接采用红外焊接，热熔深度为不小于0.8mm，焊接温度为不低于270℃，热熔时间不小于50s，固化时间不小于20s。
本实施例中选择的壳体材料能够保证上壳体11、中壳体31和下壳体51具有优异的力学性能，耐热性及耐磨损性，且耐低温冲击性能优异，确保产品在寒冷地区收到碰撞，不会产生泄漏；且通过注塑和焊接工艺，使上壳体11、中壳体31、下壳体51、上网格筋13、中网格筋32及下网格筋52的厚度均匀，且焊缝处连接强度大，制造得到抗变形能力较强的上壳体11、中壳体31和下壳体51。
本说明书中的各个实施例均采用递进的方式描述，各个实施例之间相同相似的部分互相参见即可，每个实施例重点说明的都是与其他实施例的不同之处。尤其，对于系统实施例而言，由于其基本相似于方法实施例，所以描述的比较简单，相关之处参见方法实施例的部分说明即可。
以上所述仅为本申请的实施例而已，并不用于限制本申请。对于本领域技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本申请的权利要求范围之内。

Claims (10)

  1. 一种网格状油箱，其特征在于，其包括：油箱壳体，所述油箱壳体围成包括燃油腔的腔体，所述油箱壳体包括上部的上壳体区域、中部的中壳体区域和下部的下壳体区域；
    所述腔体内对应所述中壳体高度区域设置中网格筋结构，所述中网格筋结构将所述腔体中部分隔成若干个中网格腔，所述中网格腔之间在径向上不连通，所述中网格腔包括的第一中网格腔组的底端设置通油口以相互连通形成所述燃油腔。
  2. 根据权利要求1所述的网格状油箱，其特征在于，所述第一中网格腔组中的至少一个第一中网格腔的顶端设置入口，所述入口与所述油箱壳体设置的进油口连接，第一中网格腔的底端设置开口相互连通形成所述燃油腔；
    所述中网格筋结构由若干个中隔板排列连接形成网格状，所述第一中网格腔组为两端开口的密封通道状结构。
  3. 根据权利要求1或2所述的网格状油箱，其特征在于，所述腔体内还设置与所述下壳体区域对应的下网格筋结构，所述下网格筋结构与所述中网格筋结构对合密封连接；
    所述下网格筋结构将所述腔体的下部分隔成若干个下网格腔，所述下网格腔包括与所述第一中网格腔组对合的第一下网格腔组，所述第一中网格腔组中的第一中网格腔通过通油口与所述第一下网格腔组中的第一下网格腔连通；
    所述第一下网格腔之间的下网格筋设置的油流动口连通，所述第一中网格腔组和所述第一下网格腔组形成燃油腔。
  4. 根据权利要求3所述的网格状油箱，其特征在于，所述下壳体区域包括侧壁和底壁，所述油流动口自所述下网格筋与所述底壁连接处向上延伸。
  5. 根据权利要求1所述的网格状油箱，其特征在于，所述中网格腔的横截面形状选自三角形、四边形、圆形、五边形、六边形和多边形中的至少一种。
  6. 根据权利要求5所述的网格状油箱，其特征在于，所述油箱为立方体，所述中网格筋包括沿所述油箱轴向延伸的若干个中隔板，所述中网格腔的横截面为直角四边形。
  7. 根据权利要求1所述的网格状油箱，其特征在于，所述油箱壳体为吹塑/滚塑一体成形，或焊接形成。
  8. 一种集成式油箱，其特征在于，其包括权利要求1-7中任一项所述的网格状油箱，所述中网格腔还包括第二中网格腔组，所述第一中网格腔组和第二中网格腔组相互之间不连通，所述第二中网格腔组中的中网格腔之间相互连通形成尿素腔。
  9. 根据权利要求8所述的集成式油箱，其特征在于，所述第二中网格腔组中的第二中网格腔的底端密封，所述第二中网格腔的侧壁之间相互连通形成所述尿素腔。
  10. 根据权利要求9所述的集成式油箱，其特征在于，所述第二中网格腔为注塑一体成形。
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US20240181869A1 (en) 2024-06-06
CN113415151A (zh) 2021-09-21

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