Electric supporting rod motor end spring top cover with vibration isolation function and electric supporting rod comprising same

Abstract

The utility model relates to the technical field of automobile parts, in particular to an electric supporting rod motor end spring top cover with a vibration isolation function and an electric supporting rod comprising the same. The motor end spring top cover comprises a top cover body which is provided with a first connecting end connected with a first connecting object and a second connecting end connected with a second connecting object; the buffer part is arranged on the second connecting end; wherein the buffer piece is made of a damping material; when the first connecting object vibrates, at least one part of external force generated by the first connecting object is transmitted to the buffer piece from the second connecting end; and when the second connecting object vibrates, at least one part of external force generated by the second connecting object is transmitted to the second connecting end through the buffer piece. Through the arrangement of the buffer piece, when the first connecting object and / or the second connecting object vibrates, the vibration can be absorbed under the action of the buffer piece, the vibration isolation effect is achieved, and then abnormal sound is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, and more specifically, to an electric strut motor end spring top cover with vibration isolation and an electric strut comprising the same. Background Art

[0002] An electric tailgate strut is a device installed on the tailgate, primarily used to support and control its opening and closing. It primarily consists of a strut, a hydraulic cylinder (or pneumatic cylinder), an electric motor, and a controller. The electric strut operates based on a hydraulic or pneumatic system driven by an electric motor. When the driver presses the switch, the motor, via a signal from the controller, activates the hydraulic or pneumatic cylinder, which then transfers liquid or gas to the strut, causing it to extend or retract. The strut then transmits force to support or control the movement of the tailgate, thereby opening or closing it.

[0003] The current design of the electric tailgate strut on the market is that the motor spring cover is connected to the spring at one end and the actuator assembly motor housing at the other end. Therefore, during the opening and closing process of the tailgate, the mechanical energy of the spring's tension and compression deformation will be accompanied by vibration when converted. At the same time, there is also vibration from the motor. After a long time, these vibration sources will cause the entire electric strut to make abnormal noises, which in turn causes poor NVH levels of the entire vehicle. Utility Model Content

[0004] The main purpose of the utility model is to provide an electric strut motor end spring top cover with vibration isolation and an electric strut comprising the same, so as to solve the technical problems mentioned in the background technology.

[0005] In order to solve the above technical problems, on the one hand, the utility model proposes an electric strut motor end spring top cover with vibration isolation, comprising:

[0006] A top cover body having a first connecting end connected to the first connecting object and a second connecting end connected to the second connecting object;

[0007] and a buffer member, disposed on the second connecting end;

[0008] The buffer is made of vibration-damping material; when the first connection object vibrates, at least a part of the external force generated by it is transmitted to the buffer via the second connection end; and when the second connection object vibrates, at least a part of the external force generated by it is transmitted to the second connection end via the buffer.

[0009] In the above technical solution, further, the buffer component is a sheath structure, and is sleeved on the second connecting end.

[0010] In any of the above technical solutions, further, it also includes: a first limiting portion, which is arranged between the buffer component and the second connecting end, and is used to limit the mutual rotation between the two.

[0011] In any of the above technical solutions, further, the first limiting portion includes: a first clamping block and a first clamping slot matched with the first clamping block;

[0012] The first card block is arranged on the inner wall of the buffer, and the first card slot is arranged on the outer wall of the second connecting end; or the first card block is arranged on the outer wall of the second connecting end, and the first card slot is arranged on the inner wall of the buffer.

[0013] In any of the above technical solutions, further, it also includes: a second limiting portion, which is arranged between the buffer component and the second connecting object, and is used to limit the mutual rotation between the two.

[0014] In any of the above technical solutions, further, the second limiting portion includes: a second clamping block and a second clamping slot matched with the second clamping block;

[0015] The second clamping block is arranged on the outer wall of the buffer, and the second clamping slot is arranged on the second connecting object; or the second clamping block is arranged on the second connecting object, and the second clamping slot is arranged on the outer wall of the buffer.

[0016] In any of the above technical solutions, further, the buffer is made of rubber material.

[0017] On the other hand, an electric strut is also proposed, comprising: a housing, an actuator assembly disposed in the housing, and a strut assembly connected to an output end of the actuator assembly; it also includes a spring top cover with vibration isolation at the motor end of the electric strut as described in any of the above technical solutions;

[0018] Wherein, the electric strut motor end spring top cover with vibration isolation is arranged at the connection between the actuator assembly and the strut assembly;

[0019] A first connecting end of the top cover body is connected to a spring on the support rod assembly, and the other end is connected to the shell.

[0020] Beneficial effect: Compared with the existing technology, in order to avoid abnormal noise from the top cover body, a buffer is provided. When the first connecting object and / or the second connecting object vibrates, the vibration will be absorbed by the buffer, which plays a role in vibration isolation and thus avoids abnormal noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a structural diagram of the top cover of the utility model;

[0023] Figure 2 This is a schematic diagram of the explosion structure of the top cover of the utility model;

[0024] Figure 3 It is a structural diagram of the actuator assembly and housing of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the utility model in which the top cover is installed on the shell.

[0026] The following are the descriptions of the reference numerals:

[0027] 1. Top cover body; 11. First connection end; 12. Second connection end; 2. Buffer; 3. First limiting portion; 31. First slot; 4. Second limiting portion; 41. Second blocking block; 42. Second slot; 10. Housing; 101. Chamber; 20. Actuator assembly. DETAILED DESCRIPTION

[0028] Below, example embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a portion of the embodiments of the present application, not all of the embodiments of the present application. It should be understood that the present application is not limited to the example embodiments described herein. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0029] It should be noted that, as shown in this application and the claims, unless the context clearly indicates an exception, the words "a," "an," "an," and / or "the" do not refer to the singular and may include the plural. Generally speaking, the terms "comprise" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements.

[0030] If the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their 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 such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] The electric strut is mainly composed of a strut assembly and an actuator assembly for controlling the extension or retraction of the strut assembly. The motor end spring cover is an end cover structure installed at the connection between the strut assembly and the actuator assembly. On the one hand, it is used to protect the connection between the two, and on the other hand, it is also used to fix the spring on the strut assembly. During the opening and closing process of the tailgate, the actuator assembly will generate a certain amount of vibration when it is running, and the spring will also be accompanied by some vibration when it is stretched or compressed. These vibrations will cause abnormal noises to occur in the motor end spring cover. To this end, the utility model proposes an electric strut motor end spring cover and an electric strut with vibration isolation.

[0034] The electric strut motor end spring top cover and the electric strut with vibration isolation of the present application are described in detail through the following embodiments.

[0035] Example 1:

[0036] like Figures 1-4 As shown, in this embodiment, an electric strut motor end spring cover with vibration isolation includes: a cover body 1 having a first connecting end 11 connected to a first connecting object and a second connecting end 12 connected to a second connecting object; and a buffer member 2, disposed on the second connecting end 12;

[0037] In which, the buffer 2 is made of vibration-damping material; when the first connection object vibrates, at least a part of the external force generated by it is transmitted to the buffer 2 by the second connection end 12; and when the second connection object vibrates, at least a part of the external force generated by it is transmitted to the second connection end 12 by the buffer 2.

[0038] In order to avoid abnormal noise from the top cover body 1, a buffer member 2 is provided. When the first connection object and / or the second connection object vibrates, the vibration will be absorbed by the buffer member 2, which plays a role in vibration isolation and thus avoids abnormal noise.

[0039] It should be noted that the vibration reduction effect can be improved by increasing the contact area between the buffer member 2 and the second connection object. To this end, the buffer member 2 can be configured as a sheath structure and sleeved on the second connection end 12, so that when the second connection end 12 of the top cover body 1 is installed on the second connection object, the second connection end 12 does not directly contact the second connection object. In this way, the vibration generated by the first connection object and the second connection object will first act on the buffer member 2, and will be mostly or completely absorbed by the buffer member 2. The remaining small part will then act on the second connection object and the second connection end 12, thereby achieving a vibration isolation effect.

[0040] It should be noted that the first connection object may be a spring on the strut assembly, and the second connection object may be the housing 10 on the actuator assembly 20 .

[0041] It should be noted that the buffer member 2 is made of rubber material.

[0042] Example 2:

[0043] This embodiment is a further improvement based on the first embodiment.

[0044] like Figure 2 As shown, in this embodiment, since the buffer 2 is mounted on the second connecting end 12, in order to prevent the two from rotating relative to each other, it also includes: a first limiting portion 3, which is arranged between the buffer 2 and the second connecting end 12 to limit the mutual rotation between the two.

[0045] Specifically, the first limiting portion 3 includes: a first clamping block (not shown in the figure) and a first clamping slot 31 matched with the first clamping block;

[0046] The first card block is arranged on the inner wall of the buffer 2, and the first card slot 31 is arranged on the outer wall of the second connection end 12; or the first card block is arranged on the outer wall of the second connection end 12, and the first card slot 31 is arranged on the inner wall of the buffer 2.

[0047] By adopting a snap-fitting method, the connection between the buffer component 2 and the second connecting end 12 can be achieved by utilizing the mutual cooperation between the first snap-fitting block and the first snap-fitting groove 31 .

[0048] Example 3:

[0049] This embodiment is a further improvement based on any of the above embodiments.

[0050] like Figures 1-4 As shown, in this embodiment, it also includes: a second limiting portion 4, which is arranged between the buffer component 2 and the second connection object to limit the mutual rotation between the two.

[0051] Specifically, the second limiting portion 4 includes: a second clamping block 41 and a second clamping slot 42 matched with the second clamping block 41;

[0052] The second clamping block 41 is provided on the outer wall of the buffer 2 , and the second clamping slot 42 is provided on the second connecting object; or the second clamping block 41 is provided on the second connecting object, and the second clamping slot 42 is provided on the outer wall of the buffer 2 .

[0053] Example 4:

[0054] like Figures 1-4 As shown, this embodiment provides an electric strut, comprising: a housing 10, an actuator assembly 20 disposed in the housing 10, and a strut assembly (not shown) connected to the output end of the actuator assembly 20; it also includes the electric strut motor end spring top cover with vibration isolation in any of the above embodiments;

[0055] Among them, the electric strut motor end spring top cover with vibration isolation is set at the connection between the actuator assembly 20 and the strut assembly;

[0056] The first connecting end 11 of the top cover body 1 is connected to the spring on the support rod assembly, and the other end is connected to the housing 10 .

[0057] By arranging a spring top cover of the electric strut motor end with vibration isolation on the electric strut, the entire electric strut is less likely to make abnormal noise during operation.

[0058] It should be noted that the housing 10 is assembled from two half-shells, and the second connecting end 12 of the top cover body 1 is installed in the chamber 101 formed by the two half-shells after being sleeved with the buffer member 2 .

[0059] While various embodiments of the present disclosure have been described above, the above descriptions are illustrative, non-exhaustive, and not intended to be limiting of the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to existing technologies, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An electric strut motor end spring cover with vibration isolation, characterized in that: include: A top cover body (1) having a first connection end (11) connected to a first connection object and a second connection end (12) connected to a second connection object; and a buffer member (2) disposed on the second connecting end (12); The buffer member (2) is made of a vibration-damping material; when the first connection object vibrates, at least a portion of the external force generated by the first connection object is transmitted to the buffer member (2) via the second connection end (12); and when the second connection object vibrates, at least a portion of the external force generated by the second connection object is transmitted to the second connection end (12) via the buffer member (2).

2. The electric strut motor end spring cover with vibration isolation according to claim 1, characterized in that: The buffer component (2) is a sheath structure and is sleeved on the second connecting end (12).

3. The electric strut motor end spring cover with vibration isolation as claimed in claim 2, characterized in that: Also includes: The first limiting portion (3) is provided between the buffer component (2) and the second connecting end (12) and is used to limit the mutual rotation of the two.

4. The electric strut motor end spring cover with vibration isolation as claimed in claim 3, characterized in that: The first limiting portion (3) comprises: a first clamping block and a first clamping slot (31) matched with the first clamping block; The first clamping block is arranged on the inner wall of the buffer component (2), and the first clamping slot (31) is arranged on the outer wall of the second connecting end (12); or the first clamping block is arranged on the outer wall of the second connecting end (12), and the first clamping slot (31) is arranged on the inner wall of the buffer component (2).

5. The electric strut motor end spring cover with vibration isolation as claimed in claim 2, characterized in that: Also includes: The second limiting portion (4) is provided between the buffer component (2) and the second connecting object, and is used to limit the mutual rotation of the two.

6. The electric strut motor end spring cover with vibration isolation as claimed in claim 5, characterized in that: The second limiting portion (4) comprises: a second clamping block (41) and a second clamping slot (42) matched with the second clamping block (41); The second clamping block (41) is arranged on the outer wall of the buffer component (2), and the second clamping groove (42) is arranged on the second connecting object; or the second clamping block (41) is arranged on the second connecting object, and the second clamping groove (42) is arranged on the outer wall of the buffer component (2).

7. The electric strut motor end spring cover with vibration isolation according to any one of claims 1 to 6, characterized in that: The buffer member (2) is made of rubber material.

8. An electric support rod comprising: A housing (10), an actuator assembly (20) disposed in the housing (10), and a strut assembly connected to an output end of the actuator assembly (20); characterized in that it further comprises: an electric strut motor end spring top cover with vibration isolation according to any one of claims 1 to 7; Wherein, the electric strut motor end spring top cover with vibration isolation is arranged at the connection between the actuator assembly (20) and the strut assembly; The first connecting end (11) of the top cover body (1) is connected to the spring on the support rod assembly, and the other end is connected to the housing (10).

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