Special-shaped integrated passenger car national six urea box

Abstract

The utility model discloses a special-shaped integrated passenger car national six urea box, which relates to the technical field of automobile parts and comprises a box body, the box body is of a blow-molded hollow structure, a urea pump is integrally arranged on the top surface of the box body, and a waterproof vent valve is integrally arranged on the bottom surface of the box body; a first notch is formed in the left end of the front side face of the box body, and a first connecting frame is arranged at the first notch. A second notch is formed in the rear end of the left side face of the box body, and a second connecting frame is arranged at the second notch. Inclined parts are arranged on the second notch and the rear side surface of the box body; a third notch is formed in the rear end of the right side face of the box body, and a third connecting frame is arranged at the third notch. The rear side face of the box body inclines rightwards, and an air vent welding connector and a filling port welding connector are integrally arranged on the rear side face of the box body.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a special-shaped integrated passenger car National VI urea tank. Background Art

[0002] Environmental protection departments have proposed to further reduce nitrogen oxide pollutants emitted by diesel engines, and engine manufacturers have begun to use SCR technology (selective catalytic reduction technology) to meet the requirements of environmental protection departments. Diesel engine exhaust treatment fluid (commonly known as automotive urea, automotive urea, and automotive environmental urea in China) is a consumable that must be used in SCR technology.

[0003] At present, due to the promulgation and implementation of the National VI emission standards in various countries, the original National IV and National V urea tanks can no longer meet the upcoming emission standards. The urea tank assembly currently on the market can generally only be installed with a split sensor, which has a complex production process, occupies a large space, and has a high cost.

[0004] In summary, the existing technology still lacks effective solutions to meet the National VI emission standards, lightweight and integrated urea tanks, reduce overall structure and save materials.

[0005] In order to solve the above problems, the Chinese patent document "An integrated passenger car National VI urea tank" (patent application number: 202320580362.7) discloses an integrated passenger car National VI urea tank, which integrates the urea pump with the urea tank body by welding, so that the urea tank has the characteristics of small size, easy installation, meeting the National VI emission requirements, and high impact strength and toughness strength.

[0006] However, in the above technical solution, the urea tank body is approximately in the shape of a rectangular parallelepiped, and the urea filling port joint and the urea vent joint interfere with the vehicle body. Utility Model Content

[0007] In view of the defects existing in the prior art, the purpose of the utility model is to provide a special-shaped integrated passenger car National VI urea tank, which avoids interference with the vehicle body by designing the tank body in a special shape.

[0008] To achieve the above purpose, the technical solution adopted by the utility model is: a special-shaped integrated passenger car National VI urea tank, including a tank body, the tank body is a blow-molded hollow structure, the top surface of the tank body is integrated with a urea pump, and the bottom surface of the tank body is integrated with a waterproof ventilation valve; a first notch is provided at the left end of the front side surface of the tank body, and a first connecting frame is provided at the first notch; a second notch is provided at the rear end of the left side surface of the tank body, and a second connecting frame is provided at the second notch; the second notch and the rear side surface of the tank body are provided with an inclined portion; a third notch is provided at the rear end of the right side surface of the tank body, and a third connecting frame is provided at the third notch; the rear side surface of the tank body is inclined to the right, and the rear side surface of the tank body is integrated with a vent welding joint and a filling port welding joint.

[0009] A further improvement is that the first connecting frame and the second connecting frame are arranged opposite to each other in the longitudinal direction, and the second connecting frame and the third connecting frame are arranged opposite to each other in the transverse direction.

[0010] A further improvement is that the first connecting frame is provided with a first oblong mounting hole, the second connecting frame is provided with a second oblong mounting hole, the third connecting frame is provided with a third circular mounting hole, and a bushing is provided in each mounting hole.

[0011] A further improvement is that three fixing bolts are integrated on the top surface of the box body, and the three fixing bolts are arranged around the urea pump for connecting and fixing the protective cover.

[0012] A further improvement is that a first groove is provided on the left side surface of the box body at the position of the inclined portion.

[0013] A further improvement is that a pipe clamp is integrated on the top surface of the box body near the rear end.

[0014] A further improvement is that: a plurality of second grooves are arranged on the top surface of the box body around the urea pump, a third groove is arranged on the right side of the top surface of the box body, a first recessed portion is arranged on the left side of the top surface of the box body, and a fourth groove is arranged at the rear end of the top surface of the box body.

[0015] A further improvement is that a fifth groove is provided at the front end of the bottom surface of the box, a second recessed portion is provided on the right side of the bottom surface of the box, a third recessed portion is provided on the left side of the bottom surface of the box, a sixth groove is provided in the middle part of the bottom surface of the box, and a seventh groove is provided at the rear end of the bottom surface of the box.

[0016] A further improvement is that a dust plug housing is provided inside the waterproof vent valve.

[0017] A further improvement is that a waterproof breathable membrane is arranged inside the waterproof vent valve.

[0018] The beneficial effects of the utility model are:

[0019] 1. In the utility model, a first notch is provided at the left end of the front side surface of the box body, and a first connecting frame is provided at the first notch; a second notch is provided at the rear end of the left side surface of the box body, and a second connecting frame is provided at the second notch; an inclined portion is provided between the second notch and the rear side surface of the box body; a third notch is provided at the rear end of the right side surface of the box body, and a third connecting frame is provided at the third notch; the rear side surface of the box body is inclined to the right, and a vent welding joint and a filling port welding joint are integrated on the rear side surface of the box body. By designing the box body with a special shape and matching the connecting frames, interference with the vehicle body can be avoided.

[0020] 2. In the utility model, the fixing screws and the pipe clamp are formed by blow molding, which is more convenient to operate than the existing welding / assembly process and the product has a smooth appearance.

[0021] 3. In the utility model, the ventilation valve, urea pump, filling port welding head and ventilation port welding head are welded by robot hot plate welding, which has high automation, high efficiency, high welding strength, good sealing and good product consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of a special-shaped integrated passenger car National VI urea tank in an embodiment of the utility model;

[0023] Figure 2 It is a three-dimensional diagram of another angle of view of the special-shaped integrated passenger car National VI urea tank in the embodiment of the utility model;

[0024] Figure 3 This is a front view of a special-shaped integrated passenger car National VI urea tank in an embodiment of the utility model;

[0025] Figure 4 It is a rear view of a special-shaped integrated passenger car National VI urea tank in an embodiment of the utility model;

[0026] Figure 5 It is a left view of a special-shaped integrated passenger car National VI urea tank in an embodiment of the utility model;

[0027] Figure 6 It is a right side view of the special-shaped integrated passenger car National VI urea tank in the embodiment of the utility model;

[0028] Figure 7 It is a top view of a special-shaped integrated passenger car National VI urea tank in an embodiment of the utility model;

[0029] Figure 8 It is a bottom view of the special-shaped integrated passenger car National VI urea tank in the embodiment of the utility model.

[0030] Reference numerals:

[0031] 1-box body; 100-front side; 101-first notch; 102-first connecting frame; 103-first mounting hole; 110-rear side; 120-left side; 121-second notch; 122-second connecting frame; 123-second mounting hole; 124-inclined portion; 125-first groove; 130-right side; 131-third notch; 132-third connecting frame; 133-third mounting hole; 140-top surface ;141-second groove;142-third groove;143-first recessed portion;144-fourth groove;150-bottom surface;151-fifth groove;152-second recessed portion;153-third recessed portion;154-sixth groove;155-seventh groove;2-urea pump;3-fixing bolt;4-pipe clamp;5-waterproof vent valve;51-dust plug shell;6-vent welding joint;7-filling port welding joint. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below. The embodiments are shown in the accompanying drawings, wherein the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions.

[0033] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.

[0035] The following is a further description of the specific implementation of the utility model in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the utility model are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the utility model, but cannot be understood as limiting the utility model.

[0036] See also Figures 1 to 8 As shown, an embodiment of the utility model provides a special-shaped integrated passenger car National VI urea tank, including a tank body 1, the tank body 1 is a blow-molded hollow structure, and a urea pump 2 is integrated on the top surface 140 of the tank body 1. The urea pump 2 is used for: 1. detecting the temperature, liquid level, and concentration information of the urea solution inside the tank body; 2. pumping urea solution to the post-processing system; 3. heating the urea solution when the urea solution is frozen.

[0037] See also Figure 3 and Figure 4 As shown, the bottom surface 150 of the box body 1 is integrated with a waterproof vent valve 5; the waterproof vent valve 5 is used for: 1. When the urea pump starts to pump liquid, the outside gas enters the urea tank through the waterproof vent valve to ensure that the air pressure in the urea tank is stable and the urea pump can smoothly extract urea; 2. The waterproof and breathable membrane in the valve body can prevent the urea solution in the box from leaking from the valve port

[0038] See also Figure 7 and Figure 8 As shown, a first notch 101 is provided at the left end of the front side 100 of the box body 1, and a first connecting frame 102 is provided at the first notch 101; a second notch 121 is provided at the rear end of the left side 120 of the box body 1, and a second connecting frame 122 is provided at the second notch 121; an inclined portion 124 is provided between the second notch 121 and the rear side 110 of the box body 1; a third notch 131 is provided at the rear end of the right side 130 of the box body 1, and a third connecting frame 132 is provided at the third notch 131; the rear side 110 of the box body 1 is tilted to the right, and a vent weld joint 6 and a filling port weld joint 7 are integrated on the rear side 110 of the box body 1. The filling port weld joint is connected to the urea filling pipe for filling urea solution; the vent weld joint is connected to the urea vent pipe for removing gas in the urea tank when filling urea solution to ensure smooth filling.

[0039] See also Figure 7 and Figure 8 As shown, the first connecting frame 102 and the second connecting frame 122 are arranged opposite to each other in the longitudinal direction, and the second connecting frame 122 and the third connecting frame 132 are arranged opposite to each other in the transverse direction. The first connecting frame 102 is provided with an oblong first mounting hole 103, the second connecting frame 122 is provided with an oblong second mounting hole 123, and the third connecting frame 132 is provided with a circular third mounting hole 133, and a bushing is provided in each mounting hole, and the bushing is used to fix the urea tank body to the whole vehicle beam, and the metal bushing strengthens the local strength.

[0040] See also Figure 7As shown, the top surface 140 of the box body 1 is integrated with three fixing bolts 3, and the three fixing bolts 3 are arranged around the urea pump 2 for connecting and fixing the protective cover. Specifically, the left side surface 120 of the box body 1 is provided with a first groove 125 at the position of the inclined portion 124. The top surface 140 of the box body 1 is integrated with a pipe clamp 4 near the rear end for fixing the vehicle body wiring harness. The top surface 140 of the box body 1 is provided with a plurality of second grooves 141 around the urea pump 2, the right side of the top surface 140 of the box body 1 is provided with a third groove 142, the left side of the top surface 140 of the box body 1 is provided with a first recessed portion 143, and the rear end of the top surface 140 of the box body 1 is provided with a fourth groove 144.

[0041] See also Figure 8 As shown, a fifth groove 151 is provided at the front end of the bottom surface 150 of the box body 1, a second recessed portion 152 is provided at the right side of the bottom surface 150 of the box body 1, a third recessed portion 153 is provided at the left side of the bottom surface 150 of the box body 1, a sixth groove 154 is provided at the middle of the bottom surface 150 of the box body 1, and a seventh groove 155 is provided at the rear end of the bottom surface 150 of the box body 1. Specifically, a dust plug housing 51 is provided in the waterproof vent valve 5 to prevent foreign dust and other impurities from entering the valve body of the waterproof vent valve, resulting in failure of the air permeability of the valve body. A waterproof breathable membrane is also provided in the waterproof vent valve 5.

[0042] The processing of the utility model is:

[0043] 1. The urea tank body is blow-molded at high temperature and high pressure. The pump protection cover fixing bolts (3), pipe clamp (1), and urea tank installation bushings (1 round and 2 oblong) are plastic-coated and integrally formed at the same time as the urea tank body is blow-molded;

[0044] 2. The blow-molded urea tank body is punched by a robot without pins (3 holes) Hole, 1 Hole, 1 The hole position accuracy can reach 0.1mm. No waste is produced during the drilling process, and the incision is flat and smooth.

[0045] 3. After the tank body is punched, two vent valves, one filling port welding part, one vent welding part, and one urea pump are welded by hot plate welding.

[0046] Welding effect: welding strength ≥10.5MPa;

[0047] Leakage rate ≤10^(-4)mbar*l / s;

[0048] Cleanliness: The sum of solid impurities and soluble impurities ≤ 0.05g.

[0049] In the description of the specification, the description with reference to the terms "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model, and the schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0050] Through the description of the above structure and principle, technicians in the relevant technical field should understand that the present invention is not limited to the above-mentioned specific implementation methods. Improvements and substitutions based on the present invention using the known technology in the field all fall within the protection scope of the present invention and should be defined by the claims.

Claims

1. A special-shaped integrated passenger car National VI urea tank, comprising a tank body (1), wherein the tank body (1) is a blow-molded hollow structure, characterized in that: The top surface (140) of the box body (1) is integrated with a urea pump (2), and the bottom surface (150) of the box body (1) is integrated with a waterproof vent valve (5); a first notch (101) is provided at the left end of the front side surface (100) of the box body (1), and a first connecting frame (102) is provided at the first notch (101); a second notch (121) is provided at the rear end of the left side surface (120) of the box body (1), and a second connecting frame (102) is provided at the second notch (121). 122); the second notch (121) and the rear side surface (110) of the box body (1) are provided with an inclined portion (124); a third notch (131) is provided at the rear end of the right side surface (130) of the box body (1), and a third connecting frame (132) is provided at the third notch (131); the rear side surface (110) of the box body (1) is inclined to the right, and the rear side surface (110) of the box body (1) is integrally provided with a vent weld joint (6) and a filling port weld joint (7).

2. The special-shaped integrated passenger car National VI urea tank according to claim 1, characterized in that: The first connecting frame (102) and the second connecting frame (122) are arranged opposite to each other in the longitudinal direction, and the second connecting frame (122) and the third connecting frame (132) are arranged opposite to each other in the transverse direction.

3. The special-shaped integrated passenger car National VI urea tank according to claim 1, characterized in that: The first connecting frame (102) is provided with an oblong first mounting hole (103), the second connecting frame (122) is provided with an oblong second mounting hole (123), the third connecting frame (132) is provided with a circular third mounting hole (133), and a bushing is provided in each mounting hole.

4. The special-shaped integrated passenger car National VI urea tank according to claim 1, characterized in that: The top surface (140) of the box body (1) is integrally provided with three fixing bolts (3), and the three fixing bolts (3) are arranged around the urea pump (2) and are used for connecting and fixing the protective cover.

5. The special-shaped integrated passenger car National VI urea tank according to claim 1, characterized in that: A first groove (125) is provided on the left side surface (120) of the box body (1) at the position of the inclined portion (124).

6. The special-shaped integrated passenger car National VI urea tank according to claim 1, characterized in that: A pipe clamp (4) is integrated and arranged at a position close to the rear end of the top surface (140) of the box body (1).

7. The special-shaped integrated passenger car National VI urea tank according to claim 1, characterized in that: The top surface (140) of the box body (1) is provided with a plurality of second grooves (141) surrounding the urea pump (2), a third groove (142) is provided on the right side of the top surface (140) of the box body (1), a first recessed portion (143) is provided on the left side of the top surface (140) of the box body (1), and a fourth groove (144) is provided at the rear end of the top surface (140) of the box body (1).

8. The special-shaped integrated passenger car National VI urea tank according to claim 1, characterized in that: A fifth groove (151) is provided at the front end of the bottom surface (150) of the box body (1), a second recessed portion (152) is provided at the right side of the bottom surface (150) of the box body (1), a third recessed portion (153) is provided at the left side of the bottom surface (150) of the box body (1), a sixth groove (154) is provided at the middle of the bottom surface (150) of the box body (1), and a seventh groove (155) is provided at the rear end of the bottom surface (150) of the box body (1).

9. The special-shaped integrated passenger car National VI urea tank according to claim 1, characterized in that: A dust plug housing (51) is arranged inside the waterproof vent valve (5).

10. The special-shaped integrated passenger car National VI urea tank according to claim 1, characterized in that: A waterproof breathable membrane is arranged inside the waterproof vent valve (5).

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