Sound absorption and insulation module for reducing tire noise and operation equipment thereof

Abstract

The present invention provides a sound-absorbing and sound-insulating module configured to reduce noise radiated from a tire, and an operating apparatus therefor. The sound absorption and insulation module is formed by integrally combining a box body outer plate, a sound insulation sheet, a sound absorption material and a gasket component. The sound absorption and insulation module is used for reducing noise radiated from the tire and noise generated in the rolling braking process.

Description

Technical Field

[0001] The present invention relates to a sound absorbing and sound insulating module configured to reduce noise radiated from a tire, and to an operating device thereof. More particularly, the present invention relates to a sound absorbing and sound insulating module configured to reduce noise generated from a tire during rolling braking, and to an operating device thereof. Background Art

[0002] A roll-and-brake test system, which is one of the known vehicle test systems, is used to provide quality assurance for vehicles in an online process.

[0003] The rolling brake test system can test vehicle tolerances, assembly performance, acceleration performance and braking performance by achieving driving conditions similar to those that occur on the road.

[0004] When the vehicle to be tested enters the rolling brake test system, the tires of the vehicle to be tested are placed on the rollers of the test system. After that, the tester rides on the vehicle to be tested and performs acceleration, natural deceleration, neutral gear, braking and stopping operations in sequence to conduct the test.

[0005] Meanwhile, when the rolling brake test is performed, the tire will generate a lot of radiated noise. Here, the radiated noise is caused by the rotation of the roller and the tire. Therefore, in order to prevent the radiated noise of the tire from escaping, a soundproof room is installed to perform the rolling brake process in it.

[0006] However, the disadvantage is that the investment cost of installing a soundproof room is too high. In particular, the health of workers in the soundproof room may also be threatened, so the work efficiency in the soundproof room is poor.

[0007] The information disclosed in this background section is only used to enhance the understanding of the general background of the invention. The background section should not be regarded as an admission or any form of suggestion that the information constitutes relevant technology already known to a person of ordinary skill in the art. Summary of the invention

[0008] Therefore, the present invention is made in view of the above problems. An object of the present invention is to provide a sound absorbing and sound insulating module, which is constructed to reduce the noise radiated and generated by the tire in the rolling braking process by covering only a part of the vehicle in the form of a chamber. In this chamber, a tire is mounted on this part, and the vehicle enters the rolling brake test system. The present invention also provides its operating equipment. According to the present invention, since a soundproof chamber is not installed, not only the cost can be reduced, but also the scale of the work process can be reduced. In particular, since the operator does not need to perform the test in the soundproof chamber, the health of the operator will not be threatened and the work efficiency can be improved.

[0009] According to one aspect of the present invention, the above and other objects can be achieved by providing a sound absorbing and sound insulating module, which is configured to reduce the noise radiated from the tire. The sound absorbing and sound insulating module includes a box outer panel, which is configured to form the outer shape of the sound absorbing and sound insulating module and the skeleton of the sound absorbing and sound insulating module. The module also includes a sound insulation sheet connected to the inner surface of the box outer panel. The module also includes a sound absorbing material connected to the inner surface of the sound insulation sheet.

[0010] The outer panel of the box can be made of aluminum to prevent noise from escaping to the outside of the sound-absorbing and sound-insulating modules.

[0011] The sound insulation sheet may be made of a thermoplastic material to prevent noise from escaping to the outside thereof.

[0012] The sound absorbing material can be made of polyurethane material to absorb and reduce noise.

[0013] The sound absorbing material may have protrusions formed over the entire area thereof and configured to enhance the sound absorbing effect.

[0014] Sound insulation sheets and sound absorbing materials can have a buffering function to improve the sound absorption and sound insulation effects.

[0015] When the tire is inserted into the inner space of the sound absorbing material and rotates therein, noise is generated from the tire. The noise can be absorbed and reduced once when passing through the sound absorbing material. The noise can be reduced twice when passing through the sound insulation sheet and the outer panel of the box.

[0016] The sound absorbing and sound insulating module may further include a handle coupled to the outer panel of the box.

[0017] The sound absorbing and sound insulating module may further include a cushion member coupled along an edge of one side surface of the box outer panel. The cushion member may be configured to prevent noise generated from the tire from leaking to the outside of the cushion member by contacting the vehicle body around the tire.

[0018] The sound-absorbing and sound-insulating module can be integrally formed by a box outer panel, a sound-insulating sheet, a sound-absorbing material and a cushioning member. The sound-absorbing and sound-insulating module can cover all tires of a vehicle entering a rolling braking process in a one-to-one manner to reduce the noise generated when the tires rotate.

[0019] According to another aspect of the present invention, there is provided an operating device for a sound absorbing and sound insulating module, which is configured to reduce noise radiated from a tire. The operating device includes a cylinder module connected to the sound absorbing and sound insulating module. The cylinder module is configured to move the sound absorbing and sound insulating module toward the side of a vehicle entering a rolling braking process during operation of the cylinder module. The operating device also includes a base connected to the cylinder module. The operating device also includes a guide connected to the base and formed to extend in the front-rear direction of the vehicle to guide the movement of the base. The operating device also includes a motor configured to provide power for moving the base.

[0020] The sound absorbing and sound insulating module may have a hinge connected thereto so as to be rotatable relative to the cylinder module.

[0021] When the vehicle to be tested enters the rolling braking process, the sound absorbing and sound insulating module can be in a backward movement state to enable the vehicle to enter the test position. After the vehicle fully enters the test position and the tire is on the roller, the sound absorbing and sound insulating module can move forward through the operation of the cylinder module and cover the tire while contacting the body around the tire.

[0022] The cylinder module may include a first cylinder fixed to the base. The cylinder module may also include a second cylinder connected to the first rod of the first cylinder and configured to move in the longitudinal direction of the first cylinder when the first cylinder is operated. The second cylinder may have a second rod connected to a head, and the head has a function of reducing noise. When the second cylinder is operated, the head may contact one side of a tire located on a roller in a rolling braking process.

[0023] When the tire rotates and moves to one side of the roller and the other side of the roller, the head moves with the tire in a state of contact with the tire to reduce noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other objects, features and other advantages of the present invention will be more clearly understood through the following detailed description taken in conjunction with the accompanying drawings, in which:

[0025] Figure 1 is a schematic diagram of a sound-absorbing and sound-insulating module according to the present invention;

[0026] Figure 2 for Figure 1 A front view of

[0027] Figure 3 Show Figure 2 A schematic diagram of a state in which the cushion member is removed;

[0028] Figure 4 A schematic diagram showing protrusions formed on a sound absorbing material; and

[0029] Figure 5-Figure 10 It is a schematic diagram of an operating device of a sound-absorbing and sound-insulating module according to the present invention. DETAILED DESCRIPTION

[0030] Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numerals will be used throughout the drawings to refer to the same or like components, and their redundant description will be omitted.

[0031] The suffixes "module", "unit" and "part" of the components used in the following description are only for the convenience of preparing this specification. Therefore, the suffixes themselves do not have distinguishing meanings or functions.

[0032] In describing the embodiments disclosed herein, if it is determined that the detailed description of the related well-known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

[0033] In addition, it should be understood that the drawings are only used to facilitate the description of the embodiments of the present invention. Therefore, the technical ideas disclosed in the present invention are not limited by the drawings. In addition, it should be noted that the drawings include all modifications, equivalents and alternatives that fall within the spirit and technical scope of the present invention.

[0034] Meanwhile, in the present invention, terms such as "first" and / or "second" may be used to describe various components, but the components are not limited by such terms. These terms are only used to distinguish one component from other components.

[0035] When a component is referred to as being “connected” or “joined” to another component, the component may be directly connected or joined to the other component, but it should be understood that other components may exist in between.

[0036] On the other hand, when one component is referred to as being “directly connected to” or “directly in contact with” another component, it should be understood that there are no other components therebetween.

[0037] In the present specification, expressions in the singular also include the plural meaning unless the context clearly dictates otherwise.

[0038] It should be understood that expressions such as "comprise" and "have" in the present invention are intended to indicate the existence of the indicated features, quantities, steps, operations, components, parts or their combinations. However, these expressions do not exclude the existence or addition of one or more features, quantities, steps, operations, components, parts or their combinations.

[0039] In addition, the unit or control unit included in the names of motor control unit (MCU), hybrid control unit (HCU), etc. is a term widely used in the naming of control devices (controllers) that control specific functions of the vehicle, and does not mean a general functional unit.

[0040] To control various functions, the controller may include a communication device configured to communicate with other controllers or sensors, a memory configured to store an operating system, logic commands, and input / output information, and one or more processors configured to perform determinations, calculations, etc. required to control the corresponding functions. When a component, device, element, etc. of the present invention is described as having a purpose or performing an operation, function, etc., the component, device, element, etc. should be considered herein to be "configured to" meet the purpose or perform the operation or function. Each of the components, devices, elements, etc. may separately embody or include a processor and a memory, such as a non-transitory computer readable medium, as part of the device.

[0041] Hereinafter, a sound absorbing and sound insulating module configured to reduce noise radiated from a tire and an operating device thereof according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0042] like Figure 1-Figure 4 As shown, the sound absorbing and sound insulating module 1 according to the present invention is installed in a rolling brake test system, which is one of the vehicle test systems. The sound absorbing and sound insulating module 1 functions to reduce the noise radiated and generated from the tires during the rolling brake process by covering the tires of the vehicle at the test position.

[0043] In other words, as shown in the figure, according to the present invention, the sound absorbing and sound insulating module 1 is configured to reduce the noise radiated from the tire. The sound absorbing and sound insulating module 1 includes a box outer panel 10, which forms the outer shape of the sound absorbing and sound insulating module 1 and forms the skeleton of the sound absorbing and sound insulating module 1. The sound absorbing and sound insulating module 1 also includes a sound insulation sheet 20 coupled to the inner surface of the box outer panel 10. The sound absorbing and sound insulating module 1 also includes a sound absorbing material 30 coupled to the inner surface of the sound insulation sheet 20.

[0044] The outer panel 10 of the box body is made of aluminum and has a cross-sectional thickness of 3 mm. In addition, the outer panel 10 of the box body is not only used to maintain the outer framework of the sound-absorbing and sound-insulating module 1, but also used to prevent noise from escaping to the outside thereof.

[0045] The soundproof sheet 20 is coupled to the inner side of the box outer panel 10, is made of polyvinyl chloride (PVC) thermoplastic material, and has a cross-sectional thickness of 3 mm. Like the box outer panel 10, the soundproof sheet 20 serves as a soundproof member configured to prevent noise from escaping to the outside.

[0046] The sound absorbing material 30 is coupled to the inner side of the soundproof sheet 20 and is made of polyurethane. In addition, the cross-sectional thickness of the sound absorbing material 30 is 75 mm, and it is used to absorb and reduce noise.

[0047] The sound absorbing material 30 may have a structure in which the protrusions 31 are formed on the entire area of ​​the sound absorbing material 30 to improve the sound absorbing effect.

[0048] The protrusion 31 may be formed in various shapes, such as a circular arc protrusion shape or a triangular protrusion shape.

[0049] In addition, the sound insulating sheet 20 and the sound absorbing material 30 according to the present invention may have a buffering function to improve the sound absorbing and sound insulating effects, but are not limited thereto.

[0050] In the embodiment according to the present invention, when the rolling braking process is performed, the tire of the vehicle to be tested is covered with the sound absorbing and sound insulating module 1, and the tire is inserted into the inner space of the sound absorbing material 30 and positioned. Therefore, when the radiated noise is generated due to the rotation of the tire, the noise is absorbed by the sound absorbing material 30 and the primary noise is reduced. Then, the noise is reduced secondarily when passing through the sound insulating sheet 20 and the outer panel 10 of the box. Therefore, the noise radiated from the tire can be greatly reduced.

[0051] Of the noise radiated and generated from the tire during rolling braking, the noise energy absorbed and insulated by the sound absorbing material 30, the sound insulating sheet 20, and the box outer panel 10 is converted into heat energy and dissipated inside. At the same time, only a portion of the remaining noise (leakage sound) that is not absorbed and insulated leaks to the outside. Therefore, the noise radiated and generated from the tire during the rolling braking process can be greatly reduced.

[0052] Therefore, the advantage of the embodiment according to the present invention is that it is not necessary to install a large and costly soundproof room at the site where the rolling braking process is performed. With this configuration, not only the cost can be reduced, but also the scale of the work process can be reduced. In particular, since the operator does not need to perform the test in the soundproof room, there is no threat to the operator's health and the work efficiency can be improved.

[0053] The sound-absorbing and sound-isolating module 1 according to the present invention may further include a plurality of handles 40 formed to protrude outwardly from the outer surface of the box outer panel 10 .

[0054] The handle 40 may be made of steel to ensure its rigidity, but is not limited thereto.

[0055] In addition, the sound absorbing and sound insulating module 1 according to the present invention may further include a pad member 50, which is connected along one side edge of the box outer panel 10 and is configured to prevent the noise generated by the tire from leaking to the outside by contacting the vehicle body (decorative part) around the tire.

[0056] The pad member 50 may be made of a rubber material or a silicone material to prevent the pad member 50 from causing damage to the vehicle body when in contact with the vehicle body and to prevent noise leakage to the outside to the maximum extent. However, the benefits of the pad member 50 are not limited thereto.

[0057] The sound absorbing and sound insulating module 1 according to the present invention is formed by integrally combining a box outer panel 10, a sound insulating sheet 20, a sound absorbing material 30, and a cushion member 50. When the vehicle enters a rolling braking process, the sound absorbing and sound insulating module 1 according to the present invention reduces the noise generated during the rotation of the tires by covering all tires of the vehicle to be tested in a one-to-one manner.

[0058] The sound-absorbing and sound-isolating module 1 according to the present invention can effectively reduce the high-frequency noise and low-frequency noise generated by the tire.

[0059] Reference below Figure 5-Figure 10 A device for operating a sound-absorbing and sound-insulating module according to the invention is described.

[0060] As shown in the figure, the operating device according to the present invention includes a cylinder module 100, which is connected to the sound absorbing and sound insulating module 1 and is configured to move the sound absorbing and sound insulating module 1 toward the side of the vehicle 60 entering the rolling braking process during its operation. The operating device also includes a base 200, which is coupled to the cylinder module 100. The operating device also includes a guide 300, which is coupled to the base 200 and is formed to extend in the front-rear direction of the vehicle 60 to guide the movement of the base 200. The operating device also includes a motor 400, which is configured to provide power for moving the base 200.

[0061] According to the present invention, the sound absorbing and sound insulating module 1 may have a hinge 500 connected thereto so as to be rotatable relative to the cylinder module 100 .

[0062] Specifically, the cylinder module 100 may be coupled to the cylinder baffle 600 , and the cylinder baffle 600 and the sound absorbing and insulating module 1 may be connected to each other using the hinge 500 .

[0063] The automation system configured to control the operation of the sound absorbing and sound insulating module 1 can be controlled in two directions. First, in the front-to-back direction, i.e., the longitudinal direction of the guide 300, in order to cope with various types of vehicles, the front-to-back movement of the sound absorbing and sound insulating module 1 can be controlled by the guide 300 to match the width of the vehicle.

[0064] In addition, the movement of the sound absorbing and sound insulating module 1 in the left-right direction (left-right movement) may be controlled by the operation of the cylinder module 100 .

[0065] In other words, when the vehicle to be tested enters the rolling braking process, Figure 5 As shown, the sound absorbing and sound insulating module 1 is in a rearward moving state, so that the vehicle can enter the test position. Figure 6As shown, when the vehicle enters the test position and the tire 61 is located on the roller 70, the sound absorbing and sound insulating module 1 moves forward (frontwards) under the action of the cylinder module 100 and contacts the vehicle body around the tire 61. In this case, the left and right movement (forward and backward movement) of the sound absorbing and sound insulating module 1 can be controlled to cover the tire 61.

[0066] In addition, if Figure 6 As shown, the operation of the cylinder module 100 enables the sound absorbing and sound insulating module 1 to move forward and contact the vehicle body around the tire 61. In this case, the sound absorbing and sound insulating module 1 can be connected with the hinge 500 to cope with the shaking generated when the vehicle is running.

[0067] The cylinder module 100 according to the present invention includes a first cylinder 110 fixed to a base 200. The cylinder module 100 also includes a second cylinder 120 connected to a first rod 111 of the first cylinder 110 and configured to move in a longitudinal direction of the first cylinder 110 when the first cylinder 110 operates. Here, the second cylinder 120 has a second rod 121 connected to a head 80 (which has a noise reduction function). When the second cylinder 120 operates, the head 80 can reduce noise by contacting one side of a tire 61 located on a roller 70 in a rolling braking process.

[0068] The head 80 can be made of a material capable of absorbing or isolating noise. For example, the head 80 can be formed of a PVC thermoplastic material (such as the material of the soundproofing sheet 20) or a polyurethane material (such as the material of the sound-absorbing material 30).

[0069] exist Figure 7 In the figure, reference numeral 90 denotes a roller sleeve.

[0070] When the vehicle to be tested enters the rolling braking process, Figure 7 As shown, the sound absorbing and sound insulating module 1 and the head 80 can be in a backward movement state to enable the vehicle to enter the test position.

[0071] Afterwards, when the vehicle enters the test position and the tire 61 is located at the center of the roller 70, the operation of the first cylinder 110 causes the second cylinder 120, the sound absorbing and sound insulating module 1 and the head 80 to move forward, as shown in FIG. Figure 8 Then, the sound absorbing and sound insulating module 1 covers the tire 61, and the head 80 is in a state of contacting with one side surface of the tire 61. In this state, the noise generated when the tire 61 rotates is absorbed and isolated by the sound absorbing and sound insulating module 1 and the head 80. Therefore, the noise can be significantly reduced.

[0072] In addition, the tire 61 rotates and tire dispersion occurs. Here, when the tire 61 moves to one side of the roller 70 and the other side thereof, as shown in FIG. Fig. 9 and10 As shown, the head 80 maintains a state of contacting one side surface of the tire 61 by the operation of the second cylinder 120, and the head 80 moves together with the tire 61 in a state of contacting one side surface of the tire 61. Therefore, noise can be reduced.

[0073] As described above, in an embodiment according to the present invention, the sound-absorbing and sound-insulating module 1 is integrally composed of a box outer panel 10, a sound-insulating sheet 20, a sound-absorbing material 30, and a cushioning member 50. In addition, the sound-absorbing and sound-insulating module 1 is configured to cover the tire 61 of the vehicle 60 to be tested, and to reduce the noise radiated and generated from the tire 61 during the rolling braking process. Therefore, it has the advantage that there is no need to install a large and costly soundproof room. Through this construction, not only can the cost be reduced, but also the scale of the work process can be reduced. In particular, since the operator does not need to perform the test in the soundproof room, the health of the operator is not threatened, and the work efficiency can be improved.

[0074] As is apparent from the above description, the present invention provides a sound-absorbing and sound-insulating module which is an integral combination of a box outer panel, a sound-insulating sheet, a sound-absorbing material and a cushioning member. The sound-absorbing and sound-insulating module is configured to cover the tires of the vehicle to be tested, and to reduce the noise radiated from the tires and generated during the rolling braking process. Therefore, there is no need to install a large and costly soundproof room to reduce the noise radiated from the tires. Through this configuration, not only the cost can be reduced, but also the scale of the work process can be reduced. In particular, since the operator does not need to perform the test in the soundproof room, the health of the operator is not threatened, and the work efficiency can be improved.

[0075] The embodiments of the present invention have been disclosed for illustrative purposes and those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Claims

1. A sound absorbing and sound insulating module configured to reduce noise radiated from a tire, the sound absorbing and sound insulating module comprising: An outer panel of the box body, which is configured to form the outer shape of the sound absorbing and sound insulating module and form the skeleton of the sound absorbing and sound insulating module; A sound insulation sheet connected to the inner surface of the outer panel of the box; and A sound absorbing material is coupled to the inner surface of the sound insulating sheet.

2. The sound-absorbing and sound-insulating module according to claim 1, wherein: The outer panel of the box is made of aluminum to prevent the noise from escaping to the outside.

3. The sound-absorbing and sound-insulating module according to claim 1, wherein: The soundproof sheet is formed of a thermoplastic material to prevent the noise from escaping to the outside of the soundproof sheet.

4. The sound-absorbing and sound-insulating module according to claim 1, wherein: The sound absorbing material is formed of a polyurethane material to absorb and reduce the noise.

5. The sound-absorbing and sound-insulating module according to claim 1, wherein: The sound absorbing material has protrusions formed over an entire area of ​​the sound absorbing material and configured to improve a sound absorbing effect.

6. The sound absorbing and sound insulating module according to claim 1, wherein: The sound insulation sheet and the sound absorbing material have a buffering function to improve the sound absorption and sound insulation effects.

7. The sound-absorbing and sound-insulating module according to claim 1, wherein: When the tire is inserted into the inner space of the sound absorbing material and rotates therein, the noise is generated from the tire, wherein the noise is absorbed when passing through the sound absorbing material to be reduced once, and wherein the noise is reduced secondarily when passing through the sound insulating sheet and the outer panel of the box.

8. The sound-absorbing and sound-insulating module according to claim 1, further comprising a handle connected to the outer panel of the box.

9. The sound absorbing and sound insulating module according to claim 1, further comprising a cushion member coupled along an edge of one side of the box outer panel, the cushion member being configured to prevent noise generated from the tire from leaking to the outside of the cushion member by contacting a vehicle body around the tire.

10. The sound-absorbing and sound-insulating module according to claim 9, wherein: The sound-absorbing and sound-isolating module is formed by integrally combining the outer panel of the box, the sound-isolating sheet, the sound-absorbing material and the cushion member; and The sound-absorbing and sound-isolating modules cover all tires of a vehicle entering a rolling braking process in a one-to-one manner to reduce the noise generated when the tires rotate.

11. An operating device for a sound absorbing and sound insulating module, the sound absorbing and sound insulating module being configured to reduce noise radiated from a tire, the operating device comprising: a cylinder module connected to the sound absorbing and sound insulating module and configured to move the sound absorbing and sound insulating module toward a side of the vehicle entering a rolling braking process during operation of the cylinder module; a base coupled to the cylinder module; a guide member coupled to the base and formed to extend in the front-rear direction of the vehicle to guide movement of the base; and A motor is configured to provide power for moving the base.

12. The operating device according to claim 11, wherein: The sound absorbing and sound insulating module has a hinge connected thereto so that the sound absorbing and sound insulating module can rotate relative to the cylinder module.

13. The operating device according to claim 11, wherein: When the vehicle to be tested enters a rolling braking process, the sound absorbing and sound insulating module is in a backward movement state so that the vehicle can enter a test position; and After the vehicle completely enters the test position and the tire is located on the roller, the sound absorbing and sound insulating module moves forward under the action of the cylinder module and covers the tire while contacting the vehicle body around the tire.

14. The operating device according to claim 11, wherein: The cylinder module comprises: A first cylinder fixed to the base; and a second cylinder connected to the first rod of the first cylinder and configured to move in a longitudinal direction of the first cylinder when the first cylinder is operated, wherein the second cylinder comprises a second rod connected to a head, the head having a function of reducing the noise, and Wherein, when the second cylinder is operated, the head contacts one side of the tire located on the roller during the rolling braking process.

15. The operating device according to claim 14, wherein: When the tire is rotationally moved to one side of the roller and the other side of the roller, the head moves together with the tire in a state of being in contact with the tire to reduce the noise.

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