Urea tank assembly for vehicle and vehicle

Abstract

The utility model discloses a urea tank assembly for a vehicle and the vehicle, the urea tank assembly comprises a urea tank shell, a containing cavity suitable for containing a urea solution is formed in the urea tank shell, a mounting groove is formed in the bottom of the urea tank shell, and the mounting groove penetrates through the bottom of the urea tank shell; at least part of the heating device is arranged in the mounting groove, a heating end is formed on the side, facing the containing cavity, of the heating device, and the heating end selectively heats the urea solution in the containing cavity. According to the urea tank assembly for the vehicle, the heating device is integrated on the urea tank shell, and the occupied space is reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular, to a urea tank assembly for a vehicle and a vehicle Background Art

[0002] In the related art, the freezing point of the urea aqueous solution is -11°C. When the vehicle operates in an area below -11°C, the urea aqueous solution in the urea tank has a risk of freezing. Furthermore, the urea injection system cannot work properly, and the vehicle SCR system does not inject the urea aqueous solution, resulting in the problem that the vehicle exhaust exceeds the standard and the vehicle is torque-limited. Therefore, the urea tank for storing the urea aqueous solution on the vehicle needs to be designed with a thermal management system to ensure the normal use of the urea aqueous solution in cold regions of the vehicle.

[0003] The energy source of the existing urea tank thermal management system is the high-temperature coolant of the engine. The on-off mode of the energy supply of the urea tank is executed by a solenoid valve controlled by the ECU. The urea tank is generally arranged on the vehicle frame. An inlet and an outlet for supplying energy to the urea tank need to be reserved on the engine body, and water pipes are designed to be connected to the inlet and the outlet on the urea tank to achieve the energy transmission work.

[0004] However, the urea tank assembly is arranged in the middle of the vehicle frame and the engine is arranged at the front end of the vehicle frame. The two use a pipeline design method to transmit energy, which has problems of difficult pipeline layout and large space occupation. Utility Model Content

[0005] The present application aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the present application is to provide a urea tank assembly, which integrates a heating device on the urea tank housing, reducing the occupied space.

[0006] The present application also provides a vehicle having the above urea tank assembly.

[0007] The urea tank assembly for a vehicle according to an embodiment of the present application includes: a urea tank housing, an accommodation cavity adapted to accommodate a urea solution is formed in the urea tank housing, an installation groove is formed at the bottom of the urea tank housing, and the installation groove penetrates through the bottom of the urea tank housing; a heating device, at least a part of the heating device is disposed in the installation groove, a heating end is formed on a side of the heating device facing the accommodation cavity, and the heating end can selectively heat the urea solution in the accommodation cavity.

[0008] According to the urea tank assembly for a vehicle according to an embodiment of the present application, the urea tank assembly has a urea tank housing and a heating device. The urea tank housing can be used to store urea solution. The heating device can be disposed at the bottom of the urea tank housing, and the heating device can heat the urea solution inside the urea tank housing to prevent the urea solution from freezing at low temperatures. By integrating the heating device at the bottom of the urea tank housing, the pipeline structure in the prior art can be omitted. The heating device can directly heat the urea solution, improving the heating efficiency, reducing the occupied space of the heating device, achieving an integrated design of the urea tank assembly, and improving the reliability of the urea tank assembly.

[0009] In some embodiments of the present application, the heating device includes: a base, the base is located at the bottom of the urea tank housing and is connected to the urea tank housing; a fixing seat, the fixing seat is disposed on a side of the base facing the accommodation cavity and is received in the installation groove, and a heating end is formed on a side of the fixing seat facing the accommodation cavity.

[0010] In some embodiments of the present application, at least a part of the fixing seat extends into the accommodation cavity.

[0011] In some embodiments of the present application, a heating element is disposed on a side of the fixing seat facing the accommodation cavity. The heating element is configured as a heating end and can selectively heat the urea solution in the accommodation cavity.

[0012] In some embodiments of the present application, a plurality of the heating elements are configured. The plurality of heating elements are spaced apart in the radial direction of the fixing seat, and each heating element extends along the circumferential direction of the fixing seat.

[0013] In some embodiments of the present application, the heating element is configured as a thermal induction coil.

[0014] In some embodiments of the present application, a convex portion extending toward the base and abutting against the base is formed at the bottom of the urea tank housing. A first mounting hole is formed on the convex portion, and a second mounting hole is formed on the base and is disposed opposite to the first mounting hole. The urea tank assembly further includes a fastener, and the fastener passes through the second mounting hole and cooperates with the first mounting hole.

[0015] In some embodiments of the present application, a stepped surface is further formed on the convex portion. The urea tank assembly further includes a sealing member, and the sealing member is disposed between the stepped surface and the base and is respectively attached to the stepped surface and the base.

[0016] In some embodiments of the present application, the first mounting holes are configured as a plurality of circumferentially spaced-apart ones, the second mounting holes are configured as a plurality of ones, and the plurality of second mounting holes are respectively arranged in one-to-one correspondence with the plurality of first mounting holes, and the fasteners are configured as a plurality of ones, and each fastener cooperates with its corresponding first mounting hole and second mounting hole.

[0017] The vehicle according to the embodiment of the present application will be briefly described below.

[0018] The vehicle according to the embodiment of the present application is provided with the urea tank assembly of the above embodiment. Since the vehicle according to the embodiment of the present application is provided with the urea tank assembly of the above embodiment, therefore, the urea tank assembly of this vehicle can omit the pipeline structure in the prior art by integrating the heating device at the bottom of the urea tank housing. The heating device can directly heat the urea solution, improving the heating efficiency, reducing the occupied space of the heating device, realizing the integrated design of the urea tank assembly, and improving the reliability of the urea tank assembly.

[0019] The additional aspects and advantages of the present application will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0021] Figure 1 is a partial cross-sectional schematic view of a urea tank assembly according to an embodiment of the present application;

[0022] Figure 2 is Figure 1 a partial structural schematic view of the urea tank housing in ;

[0023] Figure 3 is Figure 1 a structural schematic view of the heating device in ;

[0024] Figure 4 is Figure 3 a cross-sectional schematic view of the heating element in.

[0025] REFERENCE SIGNS:

[0026] 10. Urea tank assembly;

[0027] 11. Urea tank housing; 111. Accommodation cavity; 112. Installation groove;

[0028] 113. Protrusion; 1131. First mounting hole; 114. Step surface;

[0029] 12. Heating device; 121. Base; 1211. Second mounting hole; 122. Fixed seat;

[0030] 123. Heating element; 1231. Inductive resistor; 1232. Protective housing; 13. Sealing member. Detailed implementation manners

[0031] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0032] Reference will be made below to Figures 1-4 Describe a urea tank assembly 10 for a vehicle according to an embodiment of the present application. The urea tank assembly 10 includes a urea tank housing 11 and a heating device 12. A receiving cavity 111 adapted to receive urea solution is formed in the urea tank housing 11. An installation groove 112 is formed at the bottom of the urea tank housing 11. The installation groove 112 penetrates through the bottom of the urea tank housing 11. At least a part of the heating device 12 is disposed in the installation groove 112. A heating end is formed on a side of the heating device 12 facing the receiving cavity 111. The heating end can selectively heat the urea solution in the receiving cavity 111.

[0033] Currently, the energy source of the urea tank thermal management system is the high-temperature coolant of the engine. The on-off mode of the urea tank energy supply is executed by an electromagnetic valve controlled by the ECU. The urea tank is generally arranged on the vehicle frame. An inlet and an outlet for supplying energy to the urea tank need to be reserved on the engine body, and water pipes are designed to be connected to the inlet and the outlet on the urea tank to achieve the energy transmission work. However, the urea tank assembly is arranged in the middle of the vehicle frame and the engine is arranged at the front end of the vehicle frame. The two adopt a pipeline design method to transmit energy, which has problems such as large pipeline layout difficulty and large occupied space.

[0034] Such as Figure 1 and Figure 2As shown in the figure, specifically, the urea tank assembly 10 includes a urea tank housing 11 and a heating device 12. An accommodation cavity 111 is formed inside the urea tank housing 11, and the accommodation cavity 111 can be used to accommodate urea solution. An installation groove 112 is formed at the bottom of the urea tank housing 11, and the installation groove 112 can penetrate through the bottom of the urea tank housing 11. It can be understood that the installation groove 112 can be arranged to penetrate in the thickness direction. A part of the heating device 12 can be arranged in the installation groove 112, and the heating device 12 can cooperate with the installation groove 112 to seal the bottom of the accommodation cavity 111, preventing the urea solution in the accommodation cavity 111 from leaking from the bottom of the urea tank housing. Optionally, the heating device 12 and the installation groove 112 can be detachably connected by screws or bolts, or the heating device 12 and the installation groove 112 can be detachably connected by snap connection or plug connection, or the heating device 12 and the installation groove 112 are directly welded and fixed through the contact surface.

[0035] Furthermore, a heating end is formed on the side of the heating device 12 facing the accommodation cavity 111, and the heating end can heat the urea solution in the accommodation cavity 111. When the temperature of the urea tank is relatively low, the heating device 12 starts to work, and the heating end transfers heat to the urea solution in the accommodation cavity 111, thereby preventing the urea from freezing easily. Therefore, installing the heating device 12 in the installation groove 112 can reduce the occupied space of the heating device 12 and facilitate the arrangement of other components in the vehicle. In the prior art, engine coolant is used for heating. When the vehicle is cold-started in a cold region, the engine warms up slowly and cannot quickly provide energy to the urea solution. Using the heating device 12 can also achieve rapid heating of the urea solution and improve the heating efficiency.

[0036] In short, the urea tank assembly 10 of the embodiment of the present application has a urea tank housing 11 and a heating device 12. The urea tank housing 11 can be used to store urea solution. The heating device 12 can be arranged at the bottom of the urea tank housing 11, and the heating device 12 can heat the urea solution inside the urea tank housing 11 to prevent the urea solution from freezing at low temperatures. By integrating the heating device 12 at the bottom of the urea tank housing 11, the pipeline structure in the prior art can be omitted. The heating device 12 can directly heat the urea solution, improving the heating efficiency, reducing the occupied space of the heating device 12, realizing the integrated design of the urea tank assembly 10, and improving the reliability of the urea tank assembly 10.

[0037] Such as Figure 3As shown, in some embodiments of the present application, the heating device 12 includes a base 121 and a fixing seat 122. The base 121 can be located at the bottom of the urea tank housing 11, and the base 121 can be connected to the urea tank housing 11. Optionally, a detachable connection can be formed between the base 121 and the urea tank housing 11 through screws or bolts, or a detachable connection can be formed between the base 121 and the urea tank housing 11 through snap connection or plug connection, or the base 121 and the urea tank housing 11 can be fixedly welded through a contact surface. The fixing seat 122 can be arranged on the side of the base 121 facing the accommodating cavity 111, and the fixing seat 122 can be received in the installation groove 112. Among them, a heating end for heating the urea solution can be formed on the side of the fixing seat 122 facing the accommodating cavity 111. Further, at least a part of the fixing seat 122 can extend into the accommodating cavity 111, so that the heating end can be fully in contact with the urea solution, improving the heating efficiency.

[0038] As Figure 4 shown, in some embodiments of the present application, a heating element 123 is arranged on the side of the fixing seat 122 facing the accommodating cavity 111. The heating element 123 can be configured as a heating end. One end of the heating element 123 is connected to the positive pole of the battery, and the heating element 123 can selectively heat the urea solution in the accommodating cavity 111. Specifically, the heating element 123 can be configured as multiple ones. The multiple heating elements 123 are arranged to extend in the circumferential direction of the fixing seat 122, and the multiple heating elements 123 can be arranged at intervals in the circumferential direction outward, that is, the multiple heating elements 123 can be arranged at intervals in the radial direction of the fixing seat 122. The heating element 123 can be configured as a ring shape. In a specific implementation, the heating element 123 can be configured as a thermal induction coil. The heating element 123 can include an induction resistor 1231 and a protective housing 1232. The induction resistor 1231 can generate heat after being powered on, and the protective housing 1232 can cover the outer periphery of the induction resistor 1231 to prevent the induction resistor 1231 from being worn or corroded, improving the service life of the heating element 123.

[0039] As Figure 2As shown, in some embodiments of the present application, a convex portion 113 is formed at the bottom of the urea tank housing 11. The convex portion 113 can extend towards the base 121, and the free end of the convex portion 113 can abut against the base 121. Among them, a first mounting hole 1131 can be formed on the convex portion 113, and a second mounting hole 1211 can be formed on the base 121. The second mounting hole 1211 can be correspondingly arranged with the first mounting hole 1131. The urea tank assembly 10 further includes a fastener. The fastener can pass through the second mounting hole 1211 and cooperate with the first mounting hole 1131. Among them, a first thread portion can be formed on the outer peripheral wall of the fastener, and a second thread portion that is threadedly engaged with the first thread portion can be formed on the inner peripheral wall of the first mounting hole 1131. By passing the fastener through the second mounting hole 1211 and cooperating with the first mounting hole 1131, the heating device 12 can be fixedly connected to the urea tank housing 11.

[0040] Furthermore, the first mounting holes 1131 are configured to be multiple and spaced circumferentially. The second mounting holes 1211 are configured to be multiple and the multiple second mounting holes 1211 are respectively arranged in one-to-one correspondence with the multiple first mounting holes 1131. The fasteners are configured to be multiple, and each fastener cooperates with its corresponding first mounting hole 1131 and second mounting hole 1211. Using multiple first mounting holes 1131 and multiple second mounting holes 1211 can improve the fitting strength between the heating device 12 and the urea tank housing 11.

[0041] As Figure 1 and Figure 2 As shown, in some embodiments of the present application, a stepped surface 114 is further formed on the convex portion 113. The urea tank assembly 10 further includes a seal 13. The seal 13 is disposed between the stepped surface 114 and the base 121, and the seal 13 can be respectively attached to the stepped surface 114 and the base 121, ensuring the sealing performance and durability between the heating device 12 and the urea tank housing 11. A temperature sensor can also be provided on the base 121. The temperature sensor can detect the temperature of the urea solution. The heating module can perform on-off control through the PWM signal output by the ECU. When the temperature of the urea tank assembly 10 is less than 11 °C, the thawing mode is triggered and the heating device 12 starts to work. When the set thawing time arrives, an attempt is made to build pressure in the urea injection system. If the pressure building is successful, the system exits the thawing mode and enters the heat preservation mode. If the pressure building is unsuccessful, heating will continue; when the temperature of the urea tank assembly 10 is greater than 5 °C, the heating module stops working.

[0042] The vehicle of the embodiment of the present application will be briefly described below.

[0043] The vehicle according to the embodiment of the present application is provided with the urea tank assembly 10 of the above embodiment. Since the vehicle according to the embodiment of the present application is provided with the urea tank assembly 10 of the above embodiment, therefore, the urea tank assembly 10 of this vehicle can omit the pipeline structure in the prior art by integrating the heating device 12 at the bottom of the urea tank housing 11. The heating device 12 can directly heat the urea solution, improving the heating efficiency, reducing the occupied space of the heating device 12, realizing the integrated design of the urea tank assembly 10, and improving the reliability of the urea tank assembly 10.

[0044] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0045] In the description of the present application, the "first feature" and "second feature" may include one or more of such features.

[0046] In the description of the present application, the meaning of "a plurality" is two or more.

[0047] In the description of the present application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0048] In the description of the present application, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature.

[0049] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms 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] Although embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. A urea tank assembly for a vehicle, characterized in that, Comprising: A urea tank housing (11), within which an accommodation chamber (111) suitable for accommodating urea solution is formed. An installation groove (112) is formed at the bottom of the urea tank housing (11), and the installation groove (112) penetrates through the bottom of the urea tank housing (11). A heating device (12), at least part of which is disposed within the installation groove (112). A heating end is formed on the side of the heating device (12) facing the accommodation chamber (111), and the heating end selectively heats the urea solution within the accommodation chamber (111).

2. The urea tank assembly for a vehicle according to claim 1, characterized in that, The heating device (12) includes: A base (121), which is located at the bottom of the urea tank housing (11) and is connected to the urea tank housing (11). A fixing seat (122), which is disposed on the side of the base (121) facing the accommodation chamber (111) and is received within the installation groove (112). A heating end is formed on the side of the fixing seat (122) facing the accommodation chamber (111).

3. The urea tank assembly for a vehicle according to claim 2, characterized in that, At least part of the fixing seat (122) extends into the accommodation chamber (111).

4. The urea tank assembly for a vehicle according to claim 3, characterized in that, A heating element (123) is disposed on the side of the fixing seat (122) facing the accommodation chamber (111). The heating element (123) is configured as the heating end and selectively heats the urea solution within the accommodation chamber (111).

5. The urea tank assembly for a vehicle according to claim 4, characterized in that, A plurality of the heating elements (123) are configured. The plurality of heating elements (123) are arranged at intervals in the radial direction of the fixing seat (122), and each heating element (123) extends along the circumferential direction of the fixing seat (122).

6. The urea tank assembly for a vehicle according to claim 4, wherein, The heating element (123) is configured as a thermal induction coil.

7. The urea tank assembly for a vehicle according to claim 2, wherein, A convex portion (113) extending towards the base (121) and abutting against the base (121) is formed at the bottom of the urea tank housing (11). A first mounting hole (1131) is formed on the convex portion (113). A second mounting hole (1211) is formed on the base (121) and is disposed opposite to the first mounting hole (1131). The urea tank assembly further includes a fastener, and the fastener passes through the second mounting hole (1211) and cooperates with the first mounting hole (1131).

8. The urea tank assembly for a vehicle according to claim 7, characterized in that, A stepped surface (114) is further formed on the convex portion (113). The urea tank assembly further includes a seal (13), and the seal (13) is disposed between the stepped surface (114) and the base (121) and is respectively in contact with the stepped surface (114) and the base (121).

9. The urea tank assembly for a vehicle according to claim 7, characterized in that, The first mounting holes (1131) are configured as a plurality of holes spaced circumferentially. The second mounting holes (1211) are configured as a plurality of holes, and the plurality of second mounting holes (1211) are respectively arranged in one-to-one correspondence with the plurality of first mounting holes (1131). The fasteners are configured as a plurality, and each fastener cooperates with its corresponding first mounting hole (1131) and second mounting hole (1211).

10. A vehicle, characterized in that, Comprising a urea tank assembly for a vehicle as described in any one of claims 1-9.

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