Noise reduction structure of automobile front cover supporting rod motor

Abstract

The utility model discloses a noise reduction structure of an automobile front cover supporting rod motor, belongs to the technical field of automobile noise reduction parts, and aims to provide a supporting rod motor noise reduction structure which still has good quietness even if an automobile front cover is opened, the noise reduction structure comprises a first shell, a second shell and a hinge shaft, and a first sound insulation cover is arranged on the inner wall of the first shell; a first sound insulation cover is arranged on the inner wall of the first shell, a second sound insulation cover is arranged on the inner wall of the second shell, the first sound insulation cover and the second sound insulation cover jointly wrap the automobile front cover supporting rod motor, one side of the first shell and one side of the second shell are rotationally connected through a hinge shaft, and the other side of the first shell and the other side of the second shell are limited through a connecting piece; the first shell comprises a first cylinder barrel cover and a first motor cover which are integrated, and an inner cavity of the first cylinder barrel cover is communicated with an inner cavity of the first motor cover. According to the invention, the shell structure similar to the stay bar motor in shape is designed, and the sound insulation cover is arranged in the shell structure to wrap the outer side of the stay bar motor, so that the vibration of the stay bar motor is prevented from spreading outwards, and the noise is effectively reduced.

Description

Technical Field

[0001] This application relates to the field of automotive noise reduction components technology, and in particular to a noise reduction structure for an automotive hood strut motor. Background Technology

[0002] Most existing cars are equipped with electric switching mechanisms. For example, the opening and closing of the car hood no longer requires manual operation, but is completed automatically by a strut motor. When the strut motor of the car hood is working, the rotation of the motor rotor and the movement of the motor driving the telescopic rod assembly will cause vibration and noise, which will disrupt the quietness. Although sound insulation cotton is installed inside the car hood, the sound insulation effect will be significantly reduced after the car hood is opened. Utility Model Content

[0003] The purpose of this application is to provide a strut motor noise reduction structure that maintains good quietness even when the car hood is open.

[0004] To achieve the above objectives, this application provides a noise reduction structure for a car hood strut motor: including a first housing, a second housing, and a hinge shaft. The inner wall of the first housing is provided with a first sound insulation cover, and the inner wall of the second housing is provided with a second sound insulation cover. The first and second sound insulation covers are adapted to jointly enclose the car hood strut motor. One side of the first housing and the second housing are adapted to be rotatably connected by the hinge shaft, and the other side of the first housing and the second housing are adapted to be limited by a connecting member to ensure the stability of the hood noise reduction structure installed outside the strut motor.

[0005] As a preferred embodiment, the first housing includes an integral first cylinder cover and a first motor cover, the inner cavities of the first cylinder cover and the first motor cover being connected; the second housing includes an integral second cylinder cover and a second motor cover, the inner cavities of the second cylinder cover and the second motor cover being connected; the structures of the first housing and the second housing are mirror images of each other, and can form a structure similar in shape to the strut motor.

[0006] As a preferred embodiment, the first cylinder cover has a first hinge sleeve on the side facing away from the first motor cover; the second cylinder cover has a second hinge sleeve on the side facing away from the second motor cover; the hinge shaft includes a cylindrical insertion rod, and the first hinge sleeve and the second hinge sleeve are spaced apart and aligned, suitable for the insertion rod to pass through, so that the first housing and the second housing mutually restrict each other's degrees of freedom.

[0007] As a preferred embodiment, both ends of the plug rod are located outside the first and second hinge sleeves and are fixedly connected with limit rings to prevent the plug rod from falling off.

[0008] As a preferred embodiment, the first cylinder cover has a first upper connecting plate on the side facing away from the first hinge sleeve, and the first motor cover has a first lower connecting plate on the side facing away from the first cylinder cover; the second cylinder cover has a second upper connecting plate on the side facing away from the second hinge sleeve, and the second motor cover has a second lower connecting plate on the side facing away from the second cylinder cover; the first upper connecting plate and the second upper connecting plate are aligned and constrained together by one of the connecting members, and the first lower connecting plate and the second lower connecting plate are aligned and constrained together by another connecting member, ensuring that the cover noise reduction structure is in a stable closed state.

[0009] As a preferred embodiment, the connector includes a bolt and a nut, wherein the bolt is adapted to pass through the first upper connecting plate and the second upper connecting plate and then screw into the nut; the bolt is also adapted to pass through the first lower connecting plate and the second lower connecting plate and then screw into the nut, which provides high stability and is relatively convenient for assembly and disassembly.

[0010] As a preferred embodiment, the upper end of the first cylinder cover is provided with a first upper through hole, and the upper end of the second cylinder cover is provided with a second upper through hole. The first upper through hole is adapted to be aligned with the second upper through hole to form a circular hole. The lower end of the first cylinder cover is provided with a first lower through hole, and the lower end of the second cylinder cover is provided with a second lower through hole. The first lower through hole is adapted to be aligned with the second lower through hole to form a circular hole, allowing the end of the strut motor to pass through and connect with other components of the vehicle.

[0011] As a preferred embodiment, the first and second soundproof covers have the same structure and are mirror images of each other. Both include an integral cylinder soundproof cotton and a motor soundproof cotton. The cylinder soundproof cotton has an upper half hole at the top and a lower half hole at the bottom. The two upper half holes are adapted to be aligned to form a circular hole, and the two lower half holes are adapted to be aligned to form a circular hole. This is also to facilitate the passage of the end of the strut motor without interfering with the end of the strut motor.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] (1) By designing a housing structure similar in shape to the strut motor and setting a soundproof cover inside the housing structure to wrap the outside of the strut motor, the vibration of the strut motor is prevented from propagating outward, thereby effectively reducing noise;

[0014] (2) By setting a hinge structure between the two housings, the two housings can rotate relative to each other, so that the noise reduction structure can be opened and closed stably, reducing the difficulty of installation, alignment and angle adjustment, and facilitating disassembly and assembly operations. Attached Figure Description

[0015] Figure 1 This is a first three-dimensional schematic diagram of the overall structure of the noise reduction structure of the motor of the car's front hood strut.

[0016] Figure 2 This is a second three-dimensional schematic diagram of the overall structure of the noise reduction structure of the motor of the car's front hood support rod.

[0017] Figure 3 A three-dimensional structural diagram of the first soundproof cover of the noise reduction structure of the motor of the car hood strut, arranged inside the first housing.

[0018] Figure 4 This is a three-dimensional structural diagram of the first housing of the noise reduction structure for the motor of the car's front hood strut.

[0019] Figure 5 A three-dimensional structural diagram of the second soundproof cover, which is configured inside the second housing, for the noise reduction structure of the motor of the car's front hood strut.

[0020] Figure 6 This is a three-dimensional structural diagram of the second housing of the noise reduction structure of the motor of the car's front hood strut.

[0021] Figure 7 This is a first three-dimensional structural diagram of the sound insulation cover for the noise reduction structure of the motor of the car's front hood strut.

[0022] Figure 8 This is a schematic diagram of the second three-dimensional structure of the soundproof cover for the noise reduction structure of the motor of the car's front hood strut.

[0023] In the diagram: 1. First housing; 101. First cylinder cover; 102. First motor cover; 103. First upper through hole; 104. First lower through hole; 105. First hinge sleeve; 106. First upper connecting plate; 107. First lower connecting plate; 2. Second housing; 201. Second cylinder cover; 202. Second motor cover; 203. Second upper through hole; 204. Second lower through hole; 205. Second hinge sleeve; 206. Second upper connecting plate; 207. Second lower connecting plate; 3. First soundproof cover; 4. Second soundproof cover; 341. Cylinder soundproofing cotton; 342. Motor soundproofing cotton; 343. Upper half hole; 344. Lower half hole; 5. Connector; 501. Bolt; 502. Nut; 6. Hinge shaft; 601. Insert rod; 602. Limiting ring. Detailed Implementation

[0024] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. They should not be construed as limiting the specific protection scope of this application.

[0026] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0028] like Figure 1-8 The noise reduction structure of the car hood strut motor shown includes a first housing 1, a second housing 2, and a hinge shaft 6. The first housing 1 and second housing 2 are typically made of plastic, while the hinge shaft 6 is typically made of a corrosion-resistant alloy material. The first housing 1 includes an integral first cylinder head cover 101 and a first motor cover 102. Both the first cylinder head cover 101 and the first motor cover 102 are half of a hollow cylinder. The planar sides of the first cylinder head cover 101 and the first motor cover 102 are flush. The inner surfaces of the first cylinder head cover 101 and the first motor cover 102... The cavities are connected, and the inner cavity is also connected to the planar side. Since the structures of the first housing 1 and the second housing 2 are mirror images of each other, they have the same structure. The second housing 2 also includes an integral second cylinder cover 201 and a second motor cover 202. The second cylinder cover 201 and the second motor cover 202 are also semi-cylindrical and their planar sides are flush. The inner cavities of the second cylinder cover 201 and the second motor cover 202 are connected, and their inner cavities are also connected to the planar side. When the planar sides of the first housing 1 and the second housing 2 are aligned, a cavity that can accommodate the car hood support rod can be formed.

[0029] The upper end of the first cylinder cover 101 has a first upper through hole 103, and the upper end of the second cylinder cover 201 has a second upper through hole 203. The first upper through hole 103 can be aligned with the second upper through hole 203 to form a circular hole for the upper end of the front cover support rod motor to pass through. The lower end of the first cylinder cover 101 has a first lower through hole 104, and the lower end of the second cylinder cover 201 has a second lower through hole 204. The first lower through hole 104 can be aligned with the second lower through hole 204 to form a circular hole for the lower end of the front cover support rod motor to pass through. The inner wall of the first housing 1 is provided with a first soundproof cover 3, and the inner wall of the second housing 2 is provided with a second soundproof cover 4. The first soundproof cover 3 and the second soundproof cover 4 have the same structure and are mirror images of each other. The first soundproof cover 3 and the second soundproof cover 4 are used to jointly enclose the first housing 1. Outside the hood support motor, to prevent the noise generated by the hood support motor from spreading outward, the first soundproof cover 3 and the second soundproof cover 4 both include an integral cylinder soundproof cotton 341 and a motor soundproof cotton 342. Both the cylinder soundproof cotton 341 and the motor soundproof cotton 342 are hollow semi-cylindrical. The planar sides of the cylinder soundproof cotton 341 and the motor soundproof cotton 342 are aligned, and the inner cavities of the cylinder soundproof cotton 341 and the motor soundproof cotton 342 are connected to the planar sides. The cylinder soundproof cotton 341 has an upper half hole 343 at the upper end and a lower half hole 344 at the lower end. The two upper half holes 343 are suitable for alignment to form a round hole, which is also for the upper end of the hood support motor to pass through. The two lower half holes 344 are suitable for alignment to form a round hole, which is also for the lower end of the hood support motor to pass through.

[0030] The first housing 1 and the second housing 2 are rotatably connected by a hinge shaft 6. The side of the first cylinder cover 101 facing away from the first motor cover 102 has a first hinge sleeve 105, and the side of the second cylinder cover 201 facing away from the second motor cover 202 has a second hinge sleeve 205. The hinge shaft 6 includes a cylindrical insertion rod 601. The insertion rod 601 is relatively slender. When the first hinge sleeve 105 and the second hinge sleeve 205 are arranged at intervals and the shaft holes are aligned, the insertion rod 601 can pass through to form a rotating pair. Both ends of the insertion rod 601 are located outside the first hinge sleeve 105 and the second hinge sleeve 205, and are fixedly connected to a limiting ring 602. The limiting ring 602 can be stamped integrally with the insertion rod 601 to prevent the insertion rod 601 from detaching from the hinge sleeve.

[0031] The other side of the first housing 1 and the second housing 2 can be limited by the connecting member 5. The first cylinder cover 101 has a first upper connecting plate 106 near the upper end on the side facing away from the first hinge sleeve 105, and the first motor cover 102 has a first lower connecting plate 107 near the lower end on the side facing away from the first cylinder cover 101. Correspondingly, the second cylinder cover 201 has a second upper connecting plate 206 near the upper end on the side facing away from the second hinge sleeve 205, and the second motor cover 202 has a second lower connecting plate 207 near the lower end on the side facing away from the second cylinder cover 201. The first upper connecting plate 106 will be aligned with the second upper connecting plate 206 and constrained together by a connecting member 5. The first lower connecting plate 107 will be aligned with the second lower connecting plate 207 and constrained together by another connecting member 5.

[0032] The connector 5 includes a bolt 501 and a nut 502 that cooperate with each other. The bolt 501 can pass through the first upper connecting plate 106 and the second upper connecting plate 206 and then screw on the nut 502. The bolt 501 can also pass through the first lower connecting plate 107 and the second lower connecting plate 207 and then screw on the nut 502. Under normal circumstances, using two sets of connectors 5 can well maintain the closed state of the noise reduction structure.

[0033] Working principle: In the initial state, the first housing 1 and the second housing 2 can rotate relative to each other under the constraint of the hinge shaft 6. In use, the first housing 1 and the second housing 2 are moved away from each other, and the noise reduction structure is in the open state. It is fastened to the outside of the car hood strut motor, so that the large telescopic rod cylinder of the strut motor is located between the two cylinder covers. Adjust the angle of the noise reduction structure so that the protruding drive part on the side of the strut motor is located between the two motor covers, so that the two housings are brought closer to each other until the first connecting plate is aligned with the second connecting plate. Then, bolts 501 and nuts 502 can be used to fix it. Since the sound insulation covers inside the first housing 1 and the second housing 2 are made of sound-absorbing cotton material, after being tightly wrapped around the strut motor, they can absorb the vibration of the strut motor, thereby reducing the outward transmission of noise and achieving a good noise reduction effect.

[0034] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A noise reduction structure for a car hood strut motor, characterized in that, include: The first housing (1) has a first soundproof cover (3) on its inner wall. The second housing (2) has a second soundproof cover (4) on its inner wall. The first soundproof cover (3) and the second soundproof cover (4) are adapted to jointly wrap around the motor of the car front hood support rod. The hinge shaft (6) is used to rotatably connect one side of the first housing (1) and the second housing (2), and the other side of the first housing (1) and the second housing (2) is used to limit the movement by the connector (5).

2. The noise reduction structure of the automotive hood support rod motor as described in claim 1, characterized in that: The first housing (1) includes an integral first cylinder cover (101) and a first motor cover (102), and the inner cavities of the first cylinder cover (101) and the first motor cover (102) are connected; the second housing (2) includes an integral second cylinder cover (201) and a second motor cover (202), and the inner cavities of the second cylinder cover (201) and the second motor cover (202) are connected; the structures of the first housing (1) and the second housing (2) are mirror images of each other.

3. The noise reduction structure for the automotive hood support motor as described in claim 2, characterized in that: The first cylinder cover (101) has a first hinge sleeve (105) on the side facing away from the first motor cover (102); the second cylinder cover (201) has a second hinge sleeve (205) on the side facing away from the second motor cover (202); the hinge shaft (6) includes a cylindrical plug rod (601), and the first hinge sleeve (105) and the second hinge sleeve (205) are spaced apart and aligned, suitable for the plug rod (601) to pass through.

4. The noise reduction structure of the automotive hood support rod motor as described in claim 3, characterized in that: Both ends of the plug rod (601) are located outside the first hinge sleeve (105) and the second hinge sleeve (205), and are fixedly connected to the limit ring (602).

5. The noise reduction structure of the automotive hood support rod motor as described in claim 4, characterized in that: The first cylinder cover (101) has a first upper connecting plate (106) on the side facing away from the first hinge sleeve (105), and the first motor cover (102) has a first lower connecting plate (107) on the side facing away from the first cylinder cover (101); the second cylinder cover (201) has a second upper connecting plate (206) on the side facing away from the second hinge sleeve (205), and the second motor cover (202) has a second lower connecting plate (207) on the side facing away from the second cylinder cover (201); the first upper connecting plate (106) and the second upper connecting plate (206) are aligned and constrained together by one of the connecting members (5), and the first lower connecting plate (107) and the second lower connecting plate (207) are aligned and constrained together by another connecting member (5).

6. The noise reduction structure for the automotive hood strut motor as described in claim 5, characterized in that: The connector (5) includes a bolt (501) and a nut (502), the bolt (501) being adapted to pass through the first upper connecting plate (106) and the second upper connecting plate (206) and then be screwed into the nut (502); the bolt (501) being adapted to pass through the first lower connecting plate (107) and the second lower connecting plate (207) and then be screwed into the nut (502).

7. The noise reduction structure for the automotive hood strut motor as described in any one of claims 2 to 6, characterized in that: The first cylinder cover (101) has a first upper through hole (103) at its upper end, and the second cylinder cover (201) has a second upper through hole (203) at its upper end. The first upper through hole (103) is adapted to be aligned with the second upper through hole (203) to form a circular hole. The first cylinder cover (101) has a first lower through hole (104) at its lower end, and the second cylinder cover (201) has a second lower through hole (204) at its lower end. The first lower through hole (104) is adapted to be aligned with the second lower through hole (204) to form a circular hole.

8. The noise reduction structure of the automotive hood strut motor as described in claim 7, characterized in that: The first soundproof cover (3) and the second soundproof cover (4) have the same structure and are mirror images of each other. Both include an integral cylinder soundproof cotton (341) and motor soundproof cotton (342). The cylinder soundproof cotton (341) has an upper half hole (343) at the upper end and a lower half hole (344) at the lower end. The two upper half holes (343) are adapted to be aligned to form a round hole, and the two lower half holes (344) are adapted to be aligned to form a round hole.

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