Urea tank anti-wave board and urea tank

Abstract

The utility model provides a urea tank anti-wave plate and a urea tank, wherein the urea tank anti-wave plate comprises a anti-wave plate body and a recoil pad, the anti-wave plate body is used to be arranged in the urea tank, a plurality of first leakage holes are provided on the anti-wave plate body, one side of the recoil pad is connected to the side of the anti-wave plate body, a plurality of recoil ribs are provided on the other side of the recoil pad, one end of the recoil rib is connected to the recoil pad, the other end of the recoil rib is bent downwardly relative to the recoil pad and extends, a recoil groove with an opening facing downward is formed between the recoil rib and the recoil pad, and a plurality of second leakage holes corresponding to and connected to the first leakage holes are also provided on the recoil pad. The urea tank anti-wave plate of the utility model has the characteristics of strong noise reduction performance and can improve people's driving experience.

Description

Technical Field

[0001] The utility model relates to the technical field of urea boxes, in particular to a urea box anti-wave plate and a urea box. Background Art

[0002] Blow molding, also known as blow molding, hollow blow molding, etc., is a method of using gas pressure to blow up the hot melt parison in a closed mold to form a hollow product. The mold used for blow molding only has a female mold (concave mold), and the product cannot form a complex structure inside. Compared with injection molding, the equipment cost is lower and the adaptability is stronger. Especially in recent years, with the rapid development of automobile technology, the number of blow-molded parts for automobiles has continued to increase. For example, polyethylene resin is used to blow various parts, such as seat backs, urea tanks, fuel tanks, tailgate spoilers, washing pots, etc.

[0003] As people's awareness of caring for the links increases, corresponding regulations are upgraded, and more and more cars use SCR systems, urea tanks have become necessary accessories. However, with the improvement of the compactness of parts layout, people's higher and higher requirements for driving experience and the limitations of blow molding process (hollow), more and more urea tanks with wave protection and noise reduction are needed. Figure 1 The figure shows the hollow cavity of the blow-molded urea tank 300 on the market. When the vehicle starts, accelerates or stops suddenly, the urea solution will slosh in the urea tank, causing noise pollution and affecting the driving experience. At present, although there are some wave-breaking boards arranged in the hollow cavity of the blow-molded urea tank 300 and used for noise reduction, the wave-breaking board only adopts a structure combining a plate and rubber, and its noise reduction performance is low, resulting in a poor driving experience. Specifically, Figure 2 As shown in the figure, the curve is the sound pressure level curve obtained by detecting the receiving point during the sloshing of the urea solution in the existing blow-molded urea tank 300 with a wave-breaking plate. From the detection results in the figure, it can be seen that within the range of 20Hz-2000Hz, the maximum sound pressure level received by the far-field receiving point is located at the point in the up direction, and its value is 55.6dB, which is greater than 55dB. Therefore, the noise is relatively large, which seriously affects people's driving experience.

[0004] Therefore, it is necessary to provide a urea tank wave-breaking plate with strong noise reduction performance to improve people's driving experience, and to provide a urea tank with the urea tank wave-breaking plate. Utility Model Content

[0005] The first purpose of the utility model is to provide a urea tank wave-breaking plate with strong noise reduction performance to improve people's driving experience.

[0006] A second object of the utility model is to provide a urea tank having a urea tank wave-breaking plate with strong noise reduction performance to improve people's driving experience.

[0007] To achieve the above-mentioned first purpose, the utility model provides a urea tank wave-breaking plate, comprising a wave-breaking plate body and a recoil pad, the wave-breaking plate body being used to be arranged in the urea tank, the wave-breaking plate body being provided with a plurality of first leakage holes, one side of the recoil pad being connected to the side of the wave-breaking plate body, the other side of the recoil pad being provided with a plurality of recoil ribs, one end of the recoil rib being connected to the recoil pad, the other end of the recoil rib being bent and extended downward relative to the recoil pad, a recoil groove with an opening facing downward being formed between the recoil rib and the recoil pad, and the recoil pad being further provided with a plurality of second leakage holes corresponding to and connected to the first leakage holes one by one.

[0008] Compared with the prior art, the urea tank anti-wave plate of the utility model is provided with a recoil pad on the anti-wave plate body, a recoil rib on the recoil pad, and a recoil groove with an opening facing downward is formed between the recoil rib and the recoil pad. Therefore, when the anti-wave plate body is fixedly connected to the urea tank, if the vehicle starts, accelerates or stops suddenly, the urea solution in the urea tank will flow backward or forward. At this time, the urea solution will be blocked by the urea tank anti-wave plate, and a small amount of urea solution can flow backward or forward through the first leakage hole of the anti-wave plate body and the second leakage hole of the recoil pad. However, the momentum of the urea solution flow is reduced, and the momentum when it hits the inner side wall of the urea tank is also reduced, so the impact of the urea solution in the urea tank can be reduced and the noise can be reduced. At the same time, the recoil groove recoils and releases the urea solution in the urea tank, which can greatly reduce the amplitude of the urea solution when it swings up and down, greatly enhancing the noise reduction performance of the urea tank anti-wave plate, and avoiding the urea solution from swinging too much in the urea tank to cause a large noise. Therefore, the urea tank wave-breaking plate of the utility model has the characteristics of strong noise reduction performance and can improve people's driving experience.

[0009] Preferably, the wave-breaking board body is an injection-molded structure.

[0010] Preferably, a first connecting member is integrally formed on the wave-breaking board body, and the first connecting member is embedded in the wave-breaking board body, and the first connecting member is used for fixed connection with the urea tank.

[0011] Preferably, the wave-breaking board body has a lifting ear portion, and the first connecting member is embedded in the lifting ear portion.

[0012] Preferably, a plurality of the lifting ears are respectively located on different sides of the wave-breaking board body.

[0013] Preferably, the recoil pad is connected to the wave-breaking board body by an undercut.

[0014] Preferably, the recoil ribs are arranged on the recoil pad along a transverse direction thereof, and a plurality of the recoil ribs are arranged on the recoil pad at intervals along a vertical direction of the recoil pad.

[0015] To achieve the above-mentioned second purpose, the utility model provides a urea tank, including a urea tank body and the above-mentioned urea tank anti-wave plate, wherein the urea tank body is provided with a accommodating space for accommodating urea solution, and the anti-wave plate body is arranged in the accommodating space along the height direction of the urea tank body and connected to the urea tank body.

[0016] Compared with the prior art, the urea tank of the utility model is provided with a urea tank anti-wave plate, and the urea tank anti-wave plate is provided with a recoil pad on the anti-wave plate body, and a recoil rib is provided on the recoil pad, and a recoil groove with an opening facing downward is formed between the recoil rib and the recoil pad. Therefore, when the anti-wave plate body is fixedly connected to the accommodating space of the urea tank body, if the vehicle is started, accelerated or stopped suddenly, the urea solution in the accommodating space of the urea tank body will flow to the rear or front. At this time, the urea solution will be blocked by the urea tank anti-wave plate, and a small amount of urea solution can be discharged through the anti-wave plate. The first leakage hole of the plate body and the second leakage hole of the recoil pad flow toward the rear or the front, but the momentum of the urea solution flow is reduced, and its momentum when it hits the inner side wall of the urea tank is also reduced, so the impact of the urea solution in the urea tank can be reduced and the noise can be reduced. At the same time, the recoil groove recoils and releases the urea solution in the urea tank, which can greatly reduce the amplitude of the urea solution when it swings up and down, greatly enhancing the noise reduction performance of the urea tank anti-wave plate, avoiding the urea solution from swinging too much in the urea tank and causing a large noise, thereby improving people's driving experience.

[0017] Preferably, the urea tank further comprises a second connecting piece, a mounting hole is provided on the urea tank body, and the second connecting piece passes through the mounting hole and is connected to the urea tank anti-wave board to fix the anti-wave board body.

[0018] Preferably, the urea tank further includes a sealing member, which is disposed at the location of the mounting hole and seals between the second connecting member and the urea tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a half-section diagram of an existing blow-molded urea tank.

[0020] Figure 2 It is a sound pressure level curve obtained by detecting a receiving point during the sloshing process of urea solution in an existing blow-molded urea tank with a wave-breaking plate.

[0021] Figure 3 It is a half-section view of the urea tank of the utility model.

[0022] Figure 4 It is a three-dimensional structural diagram of the urea tank wave-breaking plate of the utility model.

[0023] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0024] Figure 6 It is a sound pressure level curve obtained by detecting a receiving point during the sloshing process of the urea solution in the urea tank of the utility model. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0026] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] See also Figures 2 to 4The urea tank 200 of the utility model includes a urea tank body 201 and a urea tank anti-wave plate 100. The urea tank anti-wave plate 100 includes an anti-wave plate body 1 and a recoil pad 3. The anti-wave plate body 1 is used to be arranged in the urea tank 200. A plurality of first leakage holes 11 are provided on the anti-wave plate body 1. One side of the recoil pad 3 is connected to the side of the anti-wave plate body 1. A plurality of recoil ribs 31 are provided on the other side of the recoil pad 3. One end of the recoil rib 31 is connected to the recoil pad 3. The other end of the recoil rib 31 is bent and extended downward relative to the recoil pad 3. A recoil groove 33 with an opening facing downward is formed between the recoil rib 31 and the recoil pad 3. The recoil pad 3 is also provided with a plurality of second leakage holes 32 corresponding to and connected to the first leakage holes 11. The urea tank body 201 is provided with a containing space 201 a for containing urea solution. The anti-wave board body 1 is arranged in the containing space 201 a along the height direction of the urea tank body 201 and connected to the urea tank body 201 .

[0030] If the vehicle starts, accelerates or stops suddenly, the urea solution in the accommodating space 201a of the urea tank body 201 will flow backward or forward. At this time, the urea solution will be blocked by the urea tank wave-breaking plate 100, and a small amount of urea solution can flow backward or forward through the first leakage hole 11 of the wave-breaking plate body 1 and the second leakage hole 32 of the recoil pad 3, but the momentum of the urea solution flow is reduced, and its momentum when it hits the inner side wall of the urea tank 200 is also reduced, so the impact of the urea solution in the urea tank 200 can be reduced and the noise can be reduced. At the same time, the recoil groove 33 of the recoil pad 3 recoils and releases the urea solution in the urea tank 200, which can greatly reduce the amplitude of the urea solution when it swings up and down, greatly enhancing the noise reduction performance of the urea tank wave-breaking plate 100, avoiding the urea solution from swinging too much in the urea tank 200 and causing a large noise, thereby improving people's driving experience.

[0031] like Figure 6 As shown, the curve in the figure is a sound pressure level curve obtained by detecting the receiving point during the sloshing of the urea solution in the urea tank 200 with the urea tank wave-breaking plate 100 of the utility model. From the detection results in the figure, it can be seen that within the range of 20Hz-2000Hz, the maximum sound pressure level received by the far-field receiving point is located at the point in the up direction, and its value is 20.8dB, which is much smaller than 55dB. Therefore, the urea tank wave-breaking plate 100 has a strong noise reduction performance, which improves people's driving experience.

[0032] Among them, one or both of the reinforcing ribs 13 and the guide ribs 14 can be provided on the side of the wave-breaking board body 1 away from the recoil pad 3. The reinforcing ribs 13 and the guide ribs 14 can be transverse ribs or longitudinal ribs, etc.

[0033] The recoil pad 3 may be made of soft material, such as rubber, but is not limited thereto.

[0034] See also Figure 3 In one embodiment, the wave-breaking board body 1 is an injection-molded structure, which has the characteristics of simple structure, mature manufacturing process and low cost.

[0035] See also Figure 2 and Figure 3 In one embodiment, the urea tank 200 of the utility model further includes a second connecting member 202. A mounting hole 201b is provided on the urea tank body 201. The second connecting member 202 passes through the mounting hole 201b and is connected to the urea tank anti-wave plate 100 to fix the anti-wave plate body.

[0036] See also Figure 2 and Figure 3 In one embodiment, a first connecting member 2 is integrally formed on the anti-wave board body 1 and embedded in the anti-wave board body 1. The first connecting member 2 is used to be fixedly connected to the urea tank 200. The second connecting member 202 passes through the mounting hole 201b and is connected to the first connecting member 2 to fix the anti-wave board body 1.

[0037] See also Figure 2 and Figure 3 In one embodiment, the first connecting member 2 is a nut, and the second connecting member 202 is a bolt. The bolt and the nut are connected together to fix the anti-wave board body 1 in the accommodation space 201a of the urea tank body 201. Nuts and bolts are standard parts, which have low cost, fast assembly and reliable performance. However, this is not limited to this. For example, the first connecting member 2 can be a pin, and the second connecting member 202 can be a socket member with a socket. The pin is plugged into the socket of the socket member to fix the anti-wave board body 1 in the accommodation space 201a of the urea tank body 201.

[0038] See also Figure 2 and Figure 3 The wave-breaking board body 1 has a lifting ear portion 12, and the first connecting member 2 is embedded in the lifting ear portion 12. Specifically, a plurality of lifting ear portions 12 are respectively located on different sides of the wave-breaking board body 1. In this embodiment, the number of the lifting ear portions 12 is two, and the two lifting ear portions 12 are respectively located on opposite sides of the wave-breaking board body 1, but it is not limited thereto. For example, in other embodiments, the number of the lifting ear portions 12 may also be one, three, or four, and the lifting ear portions 12 may also be located on the same side of the wave-breaking board body 1.

[0039] See also Figure 3 In this embodiment, the ear portion 12 is located at the upper portion of the anti-wave board body 1. However, this is not limited thereto. For example, the ear portion 12 may also be arranged at the side or bottom of the anti-wave board body 1.

[0040] See also Figure 3In this embodiment, the anti-wave board body 1 is a curved plate structure. However, this is not limited to this. For example, the anti-wave board body 1 can also be a straight plate structure.

[0041] See also Figures 2 to 4 The recoil pad 3 is connected to the anti-wave board body 1 by an inverted connection, which has the characteristics of simple and reliable structure and low production cost. However, this is not limited to this. For example, the recoil pad 3 and the anti-wave board body 1 can also be connected by a threaded structure. Among them, the first leakage hole 11 and the second leakage hole 32 are round holes, but this is not limited to this. For example, the first leakage hole 11 and the second leakage hole 32 can also be waist holes, rectangular holes, special-shaped holes, etc.

[0042] See also Figure 2 and Figure 3 In this embodiment, the recoil ribs 31 are arranged on the recoil pad 3 along the lateral direction, and a plurality of recoil ribs 31 are arranged on the recoil pad 3 at intervals along the vertical direction of the recoil pad 3. However, this is not limited to the above. For example, the recoil ribs 31 can also be arranged on the recoil pad 3 along the longitudinal direction. Specifically, but not limited to this.

[0043] See also Figure 2 In this embodiment, the urea tank 200 further includes a sealing member 203, which is disposed at the position of the mounting hole 201b and is sealed between the second connecting member 202 and the urea tank body 201. Specifically, the sealing member 203 is a sealing ring, which is sleeved on the second connecting member 202. When the second connecting member 202 is connected to the first connecting member 2, the second connecting member 202 presses the sealing member 203 on the urea tank body 201, and the sealing member 203 is sealed between the second connecting member 202 and the urea tank body 201. However, this is not limited to the above. For example, the sealing member 203 may also adopt a sealing sponge structure, which is fixed at the position of the mounting hole 201b of the urea tank body 201, and the second connecting member 202 is directly pressed on the sealing member 203 and connected to the first connecting member 2.

[0044] In summary, the urea tank 200 of the utility model is provided with a urea tank anti-wave plate 100, and the urea tank anti-wave plate 100 is provided with a recoil pad 3 on the anti-wave plate body 1, and a recoil rib 31 is provided on the recoil pad 3, and a recoil groove 33 with an opening facing downward is formed between the recoil rib 31 and the recoil pad 3. Therefore, when the anti-wave plate body 1 is fixedly connected to the accommodating space of the urea tank body 201, if the vehicle is started, accelerated or stopped suddenly, the urea solution in the accommodating space 201a of the urea tank body 201 will flow to the rear or front. At this time, the urea solution will be blocked by the urea tank anti-wave plate 100, and a small amount of urea solution can be passed through the anti-wave plate. The first leakage hole 11 of the plate body 1 and the second leakage hole 32 of the recoil pad 3 flow to the rear or front, but the momentum of the urea solution flow is reduced, and its momentum when it hits the inner side wall of the urea tank 200 is also reduced, so the impact of the urea solution in the urea tank 200 can be reduced and the noise can be reduced. At the same time, the recoil groove 33 of the recoil pad 3 recoils and releases the urea solution in the urea tank 200, which can greatly reduce the amplitude of the urea solution when it swings up and down, greatly enhancing the noise reduction performance of the urea tank wave-breaking plate 100, avoiding the urea solution from swinging too much in the urea tank 200 and causing a large noise, thereby improving people's driving experience. In addition, the wave-breaking plate body 1 of the urea tank wave-breaking plate 100 adopts an injection molding structure and is integrally formed with the first connecting member 2, so that the urea tank wave-breaking plate 100 has the characteristics of simple structure, mature and simple manufacturing process, and low manufacturing cost.

[0045] The above disclosure is only a preferred example of the present invention, which cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are all within the scope of the present invention.

Claims

1. A urea tank wave-breaking plate, characterized in that: The invention comprises a wave-breaking board body and a recoil pad, wherein the wave-breaking board body is used to be arranged in a urea tank, a plurality of first leakage holes are arranged on the wave-breaking board body, a side surface of the recoil pad is connected to the side surface of the wave-breaking board body, a plurality of recoil ribs are arranged on the other side surface of the recoil pad, one end of the recoil rib is connected to the recoil pad, the other end of the recoil rib is bent and extended downward relative to the recoil pad, a recoil groove with an opening facing downward is formed between the recoil rib and the recoil pad, and a plurality of second leakage holes corresponding to and connected to the first leakage holes are also arranged on the recoil pad.

2. The urea tank anti-wave plate according to claim 1, characterized in that: The wave-breaking board body is an injection-molded structure.

3. The urea tank anti-wave plate according to claim 1, characterized in that: A first connecting member is integrally formed on the wave-breaking board body, and the first connecting member is embedded in the wave-breaking board body, and the first connecting member is used for fixed connection with the urea tank.

4. The urea tank anti-wave plate according to claim 3, characterized in that: The wave-breaking board body has a lifting ear portion, and the first connecting member is embedded in the lifting ear portion.

5. The urea tank anti-wave plate according to claim 4, characterized in that: A plurality of the lifting ears are respectively located on different sides of the wave-breaking board body.

6. The urea tank anti-wave plate according to claim 1, characterized in that: The recoil pad is connected to the wave-breaking plate body by an undercut.

7. The urea tank anti-wave plate according to claim 1, characterized in that: The recoil ribs are arranged on the recoil pad along the transverse direction of the recoil pad, and a plurality of the recoil ribs are arranged on the recoil pad at intervals along the up-down direction of the recoil pad.

8. A urea tank, characterized in that: It comprises a urea tank body and a urea tank anti-wave plate as claimed in any one of claims 1 to 7, wherein the urea tank body is provided with an accommodating space for accommodating urea solution, and the anti-wave plate body is arranged in the accommodating space along the height direction of the urea tank body and connected to the urea tank body.

9. The urea tank according to claim 8, characterized in that: It also includes a second connecting piece. The urea tank body is provided with a mounting hole. The second connecting piece passes through the mounting hole and is connected to the urea tank anti-wave board to fix the anti-wave board body.

10. The urea tank according to claim 9, characterized in that: The utility model further comprises a sealing member, wherein the sealing member is arranged at the position of the mounting hole and is sealed between the second connecting member and the urea tank body.

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