Urea tank assembly structure and vehicle

Abstract

This application relates to a urea tank assembly structure and a vehicle. The urea tank assembly structure includes: a urea tank assembly for connecting to an engine wiring harness via a connector; a urea pump, with a first end connected to the urea tank assembly via a first water passage, a second end connected to the urea tank assembly via a first urea pipeline, and a third end connected to a nozzle via a second urea pipeline; a water valve, with a first end connected to a fourth end of the urea pump via a second water passage; and a second end of the water valve for connecting to the engine wiring harness. The connector, urea pump, and water valve are all located on one side of the urea tank assembly. Using the urea tank assembly structure provided in this application can effectively reduce assembly complexity and significantly improve production efficiency.

Description

Technical Field

[0001] This application relates to the field of urea tank assembly technology, and in particular to a urea tank assembly structure and vehicle. Background Technology

[0002] With the implementation of the "Emission Limits and Measurement Methods for Pollutants from Light-Duty Vehicles (China VI)" (GB 18352.6—2016) and the "Emission Limits and Measurement Methods for Pollutants from Heavy-Duty Diesel Vehicles (China VI)" (hereinafter referred to as China VI), the urea system used to meet the China VI emission standards has become increasingly complex. The higher the integration of the urea system and the more pipelines it has, the more difficult it is to manage, making the design of the urea tank assembly structure increasingly important.

[0003] In traditional technology, the urea tank assembly wiring harness in the urea tank assembly structure starts from the urea supply module end and passes through the back of the urea tank assembly, the chassis, and the engine. The wiring harness is often 3-4 meters long. Under limited production time, the overall wiring of the urea tank assembly structure is complicated, resulting in low assembly efficiency. Summary of the Invention

[0004] Therefore, it is necessary to provide a urea tank assembly structure and vehicle that features simple wiring and high assembly efficiency to address the aforementioned technical problems.

[0005] In a first aspect, this application provides a urea tank assembly structure, which adopts the following technical solution:

[0006] A urea tank assembly structure, comprising:

[0007] Urea tank assembly, used to connect to the engine wiring harness via a connector;

[0008] The urea pump has a first end connected to the urea tank assembly via a first water passage, a second end connected to the urea tank assembly via a first urea pipeline, and a third end connected to the nozzle via a second urea pipeline.

[0009] The water valve has its first end connected to the fourth end of the urea pump via a second water passage; the second end of the water valve is used to connect to the engine wiring harness.

[0010] The connector, urea pump, and water valve are all located on one side of the urea tank assembly.

[0011] In one embodiment, the urea tank assembly in the provided urea tank assembly structure includes:

[0012] Tank body;

[0013] The supply module is connected to the tank. The supply module is connected to the first end of the urea pump through the first water channel and to the second end of the urea pump through the first urea pipeline.

[0014] In one embodiment, the top side of the urea tank in the provided urea tank assembly structure is provided with a groove, and the urea tank assembly also includes a vent pipe, which is embedded in the groove.

[0015] In one embodiment, the provided urea tank assembly structure further includes: a bracket assembly disposed on the outside of the urea tank assembly, wherein a slot is provided in the bracket assembly, and the slot engages with the first urea pipeline and the first water pipeline.

[0016] In one embodiment, the support assembly in the provided urea tank assembly structure includes:

[0017] The welding bracket, along with the joint, urea pump, and water valve, is located on the same side of the urea tank assembly, with slots facing each other on the inner side of the welding bracket.

[0018] The hoops are connected to the welded brackets and are encircled on the outside of the urea tank assembly;

[0019] The bracket back plate is connected to the welded bracket and is located at the bottom of the urea tank assembly.

[0020] In one embodiment, the bracket assembly in the provided urea tank assembly structure further includes: a pump bracket disposed at the bottom of the welded bracket; the pump bracket is screwed to the urea pump.

[0021] In one embodiment, the bracket assembly in the provided urea tank assembly structure further includes: a valve bracket connected to the pump bracket; and the valve bracket screwed to the water valve.

[0022] In one embodiment, the provided urea tank assembly structure further includes cable ties for positioning the first water passage, the second water passage, the first urea pipeline, and the second urea pipeline.

[0023] In one embodiment, the provided urea tank assembly structure further includes: a platform plate connected to a welding bracket; and a treadmill ladder screwed to the platform plate.

[0024] Secondly, this application provides a vehicle including the urea tank assembly structure as described in the first aspect.

[0025] The aforementioned urea tank assembly structure and vehicle, wherein the urea tank assembly structure includes: a urea tank assembly for connecting to the engine wiring harness via a connector; a urea pump, the first end of which is connected to the urea tank assembly via a first water passage, the second end of which is connected to the urea tank assembly via a first urea line, and the third end of which is connected to the nozzle via a second urea line; a water valve, the first end of which is connected to the fourth end of the urea pump via a second water passage; and the second end of which is used to connect to the engine wiring harness; wherein the connector, urea pump, and water valve are all located on one side of the urea tank assembly. In this way, the connector, urea pump, and water valve are all located on one side of the urea tank assembly. This allows the first water passage, second water passage, first urea pipeline, second urea pipeline, and third urea pipeline to be uniformly assembled during the urea tank assembly structure generation process. During the vehicle assembly process, after the urea tank assembly structure is fixed, the engine wiring harness is connected to the connector, water valve, and urea pump respectively. Assembly can be completed by simple plug-in connection, which can effectively reduce assembly complexity and fully improve production efficiency. Attached Figure Description

[0026] Figure 1 This is an isometric view of the urea tank assembly structure in one embodiment;

[0027] Figure 2 This is a front view of the urea tank assembly structure in one embodiment;

[0028] Figure 3 This is a top view of the urea tank assembly structure in one embodiment;

[0029] Figure 4 This is a side view of the urea tank assembly structure in one embodiment;

[0030] Figure 5 This is a schematic diagram of the pipeline structure in one embodiment;

[0031] Figure 6 This is an isometric view of the urea tank assembly in one embodiment;

[0032] Figure 7 This is a schematic diagram of the support assembly in one embodiment;

[0033] Figure 8 This is a schematic diagram of the structure of the urea pump and pump bracket in one embodiment;

[0034] Figure 9 This is a schematic diagram of the valve support and water valve in one embodiment;

[0035] Figure 10 This is a schematic diagram of the structure of the bicycle ladder and platform plate in one embodiment;

[0036] Attached image annotations:

[0037] 1. Urea tank assembly; 11. Tank body; 12. Supply module; 13. Vent pipe; 14. Urea filling port cap; 15. Drain plug; 31. Water outlet pipe; 4. Urea pump; 5. Water valve; 61. First water passage; 62. First urea pipeline; 63. Second urea pipeline; 64. Second water passage; 65. Third urea pipeline; 7. Cable tie; 8. Bracket assembly; 81. Slot; 82. Welded bracket; 83. Hoop; 84. Bracket back plate; 85. Back plate gasket; 86. Hoop gasket; 87. Pump bracket; 88. Valve bracket; 89. Fastening bolts; 91. Platform plate; 92. Step ladder. Detailed Implementation

[0038] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0039] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0040] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0044] The following is in conjunction with the appendix Figure 1-10 The embodiments of this application will be described in further detail.

[0045] Figure 1 An isometric view of a urea tank assembly structure according to an embodiment of this application is shown; Figures 2 to 4 Three views of a urea tank assembly structure according to an embodiment of this application are shown; Figure 5 A schematic diagram of a pipeline structure according to one embodiment of this application is shown. See also... Figures 1 to 5An embodiment of this application provides a urea tank assembly structure including: a urea tank assembly 1 for connecting to an engine wiring harness via a connector; a urea pump 4, the first end of which is connected to the urea tank assembly 1 via a first water passage 61, the second end of which is connected to the urea tank assembly 1 via a first urea pipe 62, and the third end of which is connected to a nozzle via a second urea pipe 63; a water valve 5, the first end of which is connected to the fourth end of the urea pump 4 via a second water passage 64; and the second end of which is used to connect to the engine wiring harness; wherein the connector, the urea pump 4, and the water valve 5 are all located on one side of the urea tank assembly 1.

[0046] The urea tank assembly 1 is used to hold and circulate urea solution, which is typically AdBlue or DEF (Diesel Exhaust Fluid). The urea solution in the urea tank assembly 1 flows through the first urea line 62 into the urea pump 4. After the pressure is regulated by the urea pump 4, it is sprayed out from the nozzle through the second urea line 63. The remaining urea solution flows back into the urea tank assembly 1 through the third urea line 65.

[0047] The engine wiring harness includes an outlet water pipe 31 and a return water pipe. The first end of the outlet water pipe 31 is connected to the connector in the urea tank assembly structure, and the second end is connected to the high-pressure end of the engine cooling water. The first end of the return water pipe is connected to the low-pressure end of the engine cooling water, and the second end of the return water pipe is connected to the second end of the water valve 5 in the urea tank assembly structure. In this way, high-temperature cooling water flows from the high-pressure end of the engine cooling water into the urea tank assembly 1 through the outlet pipe 31, then into the urea pump 4 through the first water passage 61, into the water valve 5 through the second water passage 64, and finally back to the low-pressure end of the engine cooling water through the return pipe from the water valve 5. During the process of the cooling water flowing through the urea tank assembly 1, urea pump 4 and water valve 5 in sequence, it exchanges heat with the urea solution flowing through the urea tank assembly 1, urea pump 4 and water valve 5, etc., to prevent the urea solution flowing in each component from crystallizing or freezing at low temperature, which would cause blockage of pipes and nozzles. This ensures that there is enough urea solution to supply the SCR (Selective Catalytic Reduction) system during vehicle operation to decompose nitrogen oxides in the exhaust.

[0048] In one possible implementation, the first water passage 61, the second water passage 64, the first urea pipeline 62, the second urea pipeline 63, and the third urea pipeline 65 are all made of rigid nylon molded pipes.

[0049] In one possible implementation, the urea tank assembly structure further includes: cable ties 7, which are used to position the first water passage 61, the second water passage 64, the first urea pipeline 62, and the second urea pipeline 63.

[0050] The urea tank assembly structure provided in the above embodiment includes: a urea tank assembly 1 for connecting to the engine wiring harness via a connector; a urea pump 4, the first end of which is connected to the urea tank assembly 1 via a first water passage 61, the second end of which is connected to the urea tank assembly 1 via a first urea pipe 62, and the third end of which is connected to the nozzle via a second urea pipe 63; a water valve 5, the first end of which is connected to the fourth end of the urea pump 4 via a second water passage 64; and the second end of which is used to connect to the engine wiring harness; wherein the connector, the urea pump 4, and the water valve 5 are all located on one side of the urea tank assembly 1. In this way, the connector, urea pump 4, and water valve 5 are all located on one side of the urea tank assembly 1. Thus, the first water passage 61, the second water passage 64, the first urea pipe 62, the second urea pipe 63, and the third urea pipe 65 can be uniformly assembled during the generation of the urea tank assembly structure. During the vehicle assembly process, after the urea tank assembly structure is fixed, the engine wiring harness is connected to the connector, water valve 5, and urea pump 4 respectively. Assembly can be completed by simple plug-in connection, which can effectively reduce the assembly complexity and fully improve production efficiency.

[0051] Figure 6 An isometric view of a urea tank assembly 1 according to an embodiment of this application is shown. See also... Figure 6 According to an embodiment of this application, the urea tank assembly 1 in the urea tank assembly structure includes: a tank body 11; a supply module 12 connected to the tank body 11, wherein the supply module 12 is connected to the first end of the urea pump 4 through the first water passage 61 and to the second end of the urea pump 4 through the first urea pipeline 62.

[0052] The supply module 12 includes multiple interfaces. Specifically, in conjunction with the aforementioned embodiment, the first interface of the supply module 12 is connected to the water outlet pipe 31 in the engine wiring harness, the second interface is connected to the third urea pipe 65, the third interface is connected to the first urea pipe 62, and the fourth interface is connected to the first water passage 61. The first, second, third, and fourth interfaces of the supply module 12 have the same interface direction, ensuring that the water passages and urea pipes have the same routing.

[0053] Optionally, the supply module 12 includes an electric heating element that comes into direct or indirect contact with the urea solution drawn from the tank 11 to heat the urea solution, thereby maintaining the urea solution flowing from the supply module 12 into the first urea pipeline 62 and from the third urea pipeline 65 into the supply module 12 at a suitable temperature to prevent urea from crystallizing or freezing.

[0054] Optionally, the tank 11 can be manufactured using HDPE (High Density Polyethylene) blow molding, which provides good corrosion resistance, impact resistance, and weather resistance. The bottom of the tank 11 gradually narrows to ensure that the supply module 12 can draw more urea from the tank 11, thereby increasing the effective volume of the tank 11.

[0055] In one possible implementation, the urea tank assembly 1 further includes a groove on the top side of the tank body 11, and a vent pipe 13 embedded in the groove. This allows the vent pipe 13 to be retracted into the groove, further simplifying the wiring of the urea tank assembly structure.

[0056] In one possible implementation, the urea tank assembly 1 further includes: a urea filling port cap 14, disposed on the top side of the tank body 11 relative to the groove, for filling urea solution and ensuring a seal to prevent urea contamination; and a drain plug 15, disposed at the bottom of the tank body 11, for draining the urea solution inside the tank body 11 during maintenance, cleaning or replacement of urea, to facilitate maintenance of the tank body 11.

[0057] From the perspective of the embodiments of this application, the supply module 12 is at the top of the urea tank assembly 1, the drain plug 15 is at the bottom of the urea tank assembly 1, the urea filling port cap 14 is at the front of the top of the urea tank assembly 1, and the vent pipe 13 is at the rear of the top of the urea tank assembly 1.

[0058] Figure 7 A schematic diagram of the support assembly 8 in one embodiment of this application is shown. (See also...) Figure 7 The urea tank assembly structure provided in one embodiment of this application further includes: a bracket assembly 8, which is disposed on the outside of the urea tank assembly 1. The bracket assembly 8 has a slot 81, which is engaged with the first urea pipeline 62 and the first water pipeline 61.

[0059] In one possible implementation, the support assembly 8 includes: a welded support 82, which is located on the same side of the urea tank assembly 1 as the connector, the urea pump 4 and the water valve 5, with slots 81 facing each other on the inner side of the welded support 82; a clamp 83, which is connected to the welded support 82 and is arranged around the outer side of the urea tank assembly 1; and a support back plate 84, which is connected to the welded support 82 and is located at the bottom of the urea tank assembly 1.

[0060] Optionally, the slot 81 is injection molded from POM (polyformaldehyde). The slot 81 can be interference-fitted with the first urea pipe 62 and the first water pipe 61 to ensure that the first urea pipe 62 and the first water pipe 61 can be reliably fixed in the slot 81, guide the pipe route, and play a role in straightening the pipe.

[0061] The welding bracket 82 is typically welded to the vehicle chassis or other load-bearing structure, providing the main mounting position for the urea tank assembly 1. The bracket back plate 84 connects to the welding bracket 82, serving to vertically fix the urea tank assembly 1 to the vehicle, preventing it from shaking or shifting during vehicle operation. The clamps 83 include parallel upper and lower clamps, which hug the urea tank assembly 1 from the side, providing robust lateral support. The joints of the clamps 83 are secured with fastening bolts 89 to ensure a tight fit around the urea tank assembly 1, preventing loosening during operation. Thus, in this embodiment, the bracket back plate 84, upper clamps, and lower clamps provide reliable and stable support for the urea tank assembly 1 from the bottom and sides.

[0062] Optionally, the support assembly 8 also includes: a back plate pad 85 disposed between the support back plate 84 and the urea tank assembly 1; and a clamp pad 83 disposed between the clamp 83 and the urea tank assembly 1. The back plate pad 85 and the clamp pad 83 can play a role in shock absorption and cushioning, avoiding damage or noise caused by vibration or impact.

[0063] Figure 8 A schematic diagram of the urea pump 4 and pump bracket 87 in one embodiment of this application is shown. (See also...) Figure 8 In one embodiment of this application, the bracket assembly 8 further includes a pump bracket 87, which is disposed at the bottom of the welding bracket 82; the pump bracket 87 is screwed to the urea pump 4. In this way, the urea pump 4 is disposed at the bottom rear side of the urea tank assembly 1 via the pump bracket 87, which facilitates maintenance.

[0064] Figure 9 A schematic diagram of the valve support 88 and water valve 5 in one embodiment of this application is shown. (See also...) Figure 9 In one embodiment of this application, the bracket assembly 8 further includes: a valve bracket 88 connected to the pump bracket 87; the valve bracket 88 is screwed to the water valve 5. Optionally, by adjusting the valve bracket 88, the second end of the water valve 5 and the third end of the urea pump 4, as well as the connector, are aligned and nearly on the same plane, so that the outlet water pipe 31, the return water pipe, and the second urea pipe 63 in the engine wiring harness have the same direction at the connection end, thereby reducing the molding difficulty and assembly complexity.

[0065] Figure 10 A schematic diagram of the structure of the treadmill ladder 92 and platform plate 91 in one embodiment of this application is shown. (See also...) Figure 10 The urea tank assembly structure provided in one embodiment of this application further includes: a platform plate 91, which is connected to a welding bracket 82; and a trolley ladder 92, which is screwed to the platform plate 91.

[0066] The welding bracket 82 has mounting holes, and the platform plate 91 is connected to the welding bracket 82 through the mounting holes. Optionally, the platform plate 91 is located on top of the welding bracket 82.

[0067] In this embodiment, the tank body 11 of the urea tank assembly 1 is evenly filled between the support assembly 8 and the step ladder 92, which can make full use of all the space, and the volume of the tank body 11 can reach 90L.

[0068] See Figures 1 to 10 An embodiment of this application provides a urea tank assembly structure including:

[0069] The urea tank assembly 1 is used to connect to the engine wiring harness via a connector. The urea tank assembly 1 includes: a tank body 11; a supply module 12 connected to the tank body 11, the supply module 12 being connected to the first end of the urea pump 4 via a first water passage 61 and to the second end of the urea pump 4 via a first urea pipeline 62; a groove is provided on the top side of the tank body 11; the urea tank assembly 1 also includes: a vent pipe 13, the vent pipe 13 being embedded in the groove.

[0070] The urea pump 4 has its first end connected to the urea tank assembly 1 via a first water passage 61, its second end connected to the urea tank assembly 1 via a first urea pipeline 62, and its third end connected to the nozzle via a second urea pipeline 63.

[0071] Water valve 5, the first end of water valve 5 is connected to the fourth end of urea pump 4 through the second water passage 64; the second end of water valve 5 is used to connect to the engine wiring harness.

[0072] The connector, urea pump 4, and water valve 5 are all located on one side of the urea tank assembly 1.

[0073] A support assembly 8 is located on the outside of the urea tank assembly 1. The support assembly 8 has a slot 81 that engages with the first urea pipeline 62 and the first water pipeline 61. The support assembly 8 includes: a welded support 82, located on the same side of the urea tank assembly 1 as the connector, urea pump 4, and water valve 5, with the slot 81 facing each other on the inside of the welded support 82; a clamp 83, connected to the welded support 82 and encircling the outside of the urea tank assembly 1; and a support back plate 84, connected to the welded support 82 and located at the bottom of the urea tank assembly 1. A pump support 87 is located at the bottom of the welded support 82 and is screwed to the urea pump 4. A valve support 88 is connected to the pump support 87 and is screwed to the water valve 5.

[0074] Cable tie 7 is used to position the first water channel 61, the second water channel 64, the first urea pipeline 62, and the second urea pipeline 63.

[0075] Platform plate 91 is connected to welding bracket 82; treadmill ladder 92 is screwed to platform plate 91.

[0076] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiments or examples.

[0077] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0078] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A urea tank assembly structure, characterized in that, The urea tank assembly structure includes: Urea tank assembly, used to connect to the engine wiring harness via a connector; A urea pump, wherein the first end of the urea pump is connected to the urea tank assembly via a first water passage, the second end of the urea pump is connected to the urea tank assembly via a first urea pipeline, and the third end of the urea pump is connected to the nozzle via a second urea pipeline. A water valve, the first end of which is connected to the fourth end of the urea pump via a second water passage; the second end of which is used to connect to the engine wiring harness; the connector, the urea pump and the water valve are all located on one side of the urea tank assembly. A bracket assembly is disposed on the outside of the urea tank assembly. A slot is provided in the bracket assembly, and the slot is engaged with the first urea pipeline and the first water channel. The bracket assembly includes: a welding bracket, which is located on the same side of the urea tank assembly as the connector, the urea pump, and the water valve, with the slots facing each other on the inner side of the welding bracket; a pump bracket, located at the bottom of the welding bracket; the pump bracket being screwed to the urea pump; a valve bracket, connected to the pump bracket; and the valve bracket being screwed to the water valve. By adjusting the valve bracket, the second end of the water valve is aligned with and nearly on the same plane as the third end of the urea pump and the connector.

2. The urea tank assembly structure according to claim 1, characterized in that, The urea tank assembly includes: Tank body; The supply module is connected to the tank body. The supply module is connected to the first end of the urea pump through the first water path and to the second end of the urea pump through the first urea pipeline.

3. The urea tank assembly structure according to claim 2, characterized in that, The top side of the tank is provided with a groove, and the urea tank assembly also includes a vent pipe, which is embedded in the groove.

4. The urea tank assembly structure according to claim 1, characterized in that, The bracket assembly includes: A hoop is connected to the welding bracket and is arranged around the outside of the urea tank assembly; The bracket back plate is connected to the welded bracket and is located at the bottom of the urea tank assembly.

5. The urea tank assembly structure according to claim 1, characterized in that, The urea tank assembly structure also includes cable ties, which are used to position the first water passage, the second water passage, the first urea pipeline, and the second urea pipeline.

6. The urea tank assembly structure according to claim 4, characterized in that, The urea tank assembly structure also includes: a platform plate connected to the welding bracket; and a treadmill ladder screwed to the platform plate.

7. A vehicle, characterized in that, Includes the urea tank assembly structure as described in any one of claims 1-6.

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