Vibration reduction connection structure, engine system and motor vehicle

Abstract

The utility model relates to a vibration reduction connecting structure, an engine system and a motor vehicle. The vibration reduction connecting structure is used for installing an ECU module of an engine on a cylinder body of the engine and comprises a hollow damping piece made of an elastic material and a hollow supporting piece made of a rigid material, the damping piece is intended to be installed on the ECU module and comprises a first part and a second part which are detachable, and the supporting piece is made of a rigid material. The first component and the second component are configured to be engaged with each other so as to form a hollow engagement section; the supporting piece at least penetrates through the meshing part section so as to prevent the first component and the second component from being disengaged due to elastic deformation. According to the vibration reduction connecting structure, the problem that vibration reduction fails due to the fact that the vibration reduction connecting structure falls off from the ECU module in the transportation process can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts, and in particular to a vibration-damping connection structure for connecting an ECU (electronic controller unit) module of an engine to an engine cylinder block, and an engine system and a motor vehicle comprising the vibration-damping connection structure. Background Art

[0002] The ECU module of the engine can be used to control the operation of the engine and collect the working status of the engine. In practice, the ECU module of the engine is generally fixed directly to the cylinder block of the engine by bolts. However, in addition to the vibration generated by the vehicle during operation, the engine will also have its own vibration during operation. These vibrations will be transmitted to the ECU module of the engine, causing the ECU module to be damaged due to long-term high-intensity vibration. Therefore, a vibration reduction structure is usually set at the connection between the ECU module and the cylinder block of the engine to minimize the vibration that the ECU module may suffer.

[0003] A shock absorber is known to be arranged between an ECU module of an engine and an engine block. This shock absorber includes two annular rubber damping members and a sleeve. The two annular rubber damping members are inserted into a cylindrical mounting portion of the engine ECU module and abut against the cylindrical mounting portion with their outer periphery to perform vibration reduction. The sleeve is inserted into the rubber damping members and is used to receive bolts intended to fix the ECU module to the engine block. Such a shock absorber is usually pre-assembled on the ECU module of the engine and transported to the engine installation site together with the ECU module. However, for this known shock absorber, since there is no obstruction to the sleeve, there is a problem that the sleeve and thus the entire shock absorber may fall from the cylindrical mounting portion of the ECU module during the transportation and / or installation of the ECU module. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above problems and / or other problems existing in the prior art.

[0005] To achieve the above-mentioned purpose, according to one aspect of the utility model, a vibration-damping connection structure for mounting an ECU module of an engine on a cylinder block of the engine is provided. The vibration-damping connection structure comprises a hollow damping member made of an elastic material and a hollow supporting member made of a rigid material; the damping member is intended to be mounted on the ECU module and comprises a detachable first component and a second component, the first component and the second component being configured to bite together to form a hollow biting section; the supporting member at least passes through the biting section to prevent the first component and the second component from being disengaged due to elastic deformation.

[0006] According to one embodiment of the utility model, the first component includes a first supporting segment and a first biting segment connected to each other, the second component includes a second supporting segment and a second biting segment connected to each other, and the outer circumferential surface of the first biting segment and the inner circumferential surface of the second biting segment are provided with matching biting structures.

[0007] According to one embodiment of the present invention, the outer circumferential surface of the first engaging segment is provided with a plurality of teeth, and the inner circumferential surface of the second engaging segment is provided with a plurality of grooves that can be correspondingly engaged with the plurality of teeth.

[0008] According to an embodiment of the present invention, each tooth portion includes a first tooth surface and a second tooth surface forming an angle, wherein the first tooth surface extends outward in a radial direction of the first component, and the second tooth surface extends inward in an axial direction of the first component and obliquely relative to the axial direction.

[0009] According to an embodiment of the present invention, the included angle between the first tooth surface and the second tooth surface is between 15° and 60°.

[0010] According to one embodiment of the utility model, the first support segment has a truncated cone cross-sectional shape, and the outer diameter of the portion of the first support segment adjacent to the first bite segment is larger than the outer diameter of the first bite segment; the second support segment has a truncated cone cross-sectional shape, and the outer diameter of the portion of the second support segment adjacent to the second bite segment is larger than the outer diameter of the second bite segment

[0011] According to one embodiment of the utility model, the top of the support member has a flange extending radially outward, and the top of the first support section is provided with a step portion for accommodating the flange in a sunken manner.

[0012] According to an embodiment of the present utility model, the vibration-damping connection structure further comprises a cylindrical mounting portion provided on the ECU module, the cylindrical mounting portion being configured to receive the engaging section in an interference fit manner and having a notch.

[0013] According to another aspect of the present invention, an engine system is provided. The engine system includes an engine and an ECU module. The ECU module is connected to a cylinder block of the engine via the vibration-damping connection structure as described above.

[0014] According to another aspect of the utility model, a motor vehicle is provided. The motor vehicle comprises the vibration-damping connection structure or the engine system as described above.

[0015] The vibration-damping connection structure of the utility model sets the damping member into a detachable first component and a second component, which are assembled in a bite-engagement manner to form a bite section, and the first component and the second component are initially prevented from being disengaged by the formation of the bite section. Moreover, by at least passing the support member through the bite section, at least one of the first component and the second component is prevented from elastically deforming, and the first component and the second component are further prevented from being disengaged. Therefore, the problem of the vibration-damping connection structure falling off the ECU module during transportation is effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The features and advantages of the present invention will be clearly understood through the detailed description provided below with reference to the accompanying drawings. It should be understood that the following drawings are merely schematic and not necessarily drawn to scale, and thus cannot be regarded as limiting the present invention, wherein:

[0017] Figure 1 A stereoscopic view showing a vibration-damping connection structure according to an embodiment of the utility model installed on an ECU module of an engine.

[0018] Figure 2 Show Figure 1 A three-dimensional diagram of the vibration-damping connection structure.

[0019] Figure 3 Show Figure 2 Exploded view of the vibration damping connection structure in .

[0020] Figure 4 Show Figure 3 A cross-sectional view along the central axis of the decomposed vibration-damping connection structure.

[0021] Description of reference numerals:

[0022] 1. ECU module; 2. Damping member; 21. First component; 211. First supporting section; 212. First engaging section; 213. Tooth portion; 2131. First tooth surface; 2132. Second tooth surface; 214. Step portion; 22. Second component; 221. Second supporting section; 222. Second engaging section; 223. Groove portion; 2231. First groove surface; 2232. Second groove surface; 4. Engaging section; 3. Support member; 31. Flanging; 5. Cylindrical mounting portion; 51. Notch; H. Assembly direction of first component; L. Assembly direction of second component; α. Angle. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described below with reference to the accompanying drawings. In the following description, many specific details are set forth so that those skilled in the art can more fully understand and implement the present invention. However, it is obvious to those skilled in the art that the implementation of the present invention may not have some of these specific details. In addition, it should be understood that the present invention is not limited to the specific embodiments described. On the contrary, any combination of the features and elements described below may be considered to implement the present invention, regardless of whether they relate to different embodiments. Therefore, the following aspects, features, embodiments and advantages are for illustrative purposes only and should not be regarded as elements or limitations of the claims unless clearly stated in the claims.

[0024] In the following, terms such as "first", "second", etc. are used to describe the elements of the present application. These terms are only used to distinguish the various elements, and are not used to limit the nature, order or number of these elements. The terms "including" and "having" are used to express an open-ended inclusive meaning, and mean that there may be additional elements / components in addition to the listed elements / components.

[0025] like Figure 1 As shown, the utility model provides a vibration-damping connection structure, which is used to install the ECU module 1 of the engine on the cylinder block (not shown) of the engine. To this end, a number of mounting points (not shown) can be arranged at intervals on the ECU module 1, and these mounting points can be arranged at equal intervals along the edge of the ECU module 1, and can be holes directly opened on the ECU module 1 (hereinafter referred to as "cylindrical mounting parts"). The vibration-damping connection structure of the utility model can be arranged at various mounting points on the ECU module 1, especially pre-arranged in various cylindrical mounting parts before the ECU module 1 is transported to the engine installation site.

[0026] The vibration reduction connection structure of the utility model may include a damping member 2 and a supporting member 3. The damping member 2 may be made of elastic material and is used to directly contact the ECU module 1, especially inserted into the cylindrical mounting portion of the ECU module 1 and its outer peripheral surface abuts against the inner peripheral surface of the cylindrical mounting portion, such as Figure 1 The support member 3 can receive fasteners, such as bolts, for mounting the ECU module 1 on the engine block, and can be placed in the damping member 2 or at least surrounded by the damping member 2 at the position where the vibration-damping connection structure contacts the ECU module 1. As a result, the vibration originally transmitted from the engine to the ECU module 1 via fasteners such as bolts is now isolated or greatly slowed down by the damping member 2.

[0027] refer to Figure 2As shown, the damping member 2 may be cylindrical as a whole and may be hollow to receive the support member 3. The damping member 2 may include a detachable first component 21 and a second component 22, which may be respectively detachable from the axial direction ( Figure 1 The two sides of the damping member 2 (in the up and down direction) are inserted into the cylindrical mounting portion and are engaged with each other in the cylindrical mounting portion to form a hollow engagement section 4. To this end, the engagement section 4 of the damping member 2 can be advantageously configured to have a profile and size that matches the cylindrical mounting portion.

[0028] The support member 3 may be cylindrical as a whole and may be hollow for receiving fasteners such as bolts. The support member 3 may be made of a rigid material and configured to at least pass through the bite section 4 of the damping member 2, thereby preventing elastic deformation of at least one of the first component 21 and the second component 22 from occurring from the inside and then preventing the two components from being disengaged or separated.

[0029] Here, advantageously, the outer diameter of the support member 3 may be substantially equal to the diameter of the hollow inner cavity of the damping member 2, and the axial length of the support member 3 may be substantially equal to or slightly less than the axial length of the damping member 2. In this way, the support member 3 may completely abut against the inner peripheral wall of the damping member 2 (specifically, the first component 21 thereof) and keep the first component 21 always in a bite state with the second component 22, thereby preventing the first component 21 from being elastically deformed inward and separated from the second component 22.

[0030] Preferably, the support member 3 can be assembled in the damping member 2 in an interference fit manner. In this case, the outer diameter of the support member 3 can be larger than the diameter of the hollow inner cavity of the damping member 2, specifically larger than the inner diameter of the first component 21, so that the first component 21 expands slightly toward the periphery and remains in contact with the second component 22.

[0031] In the embodiment shown in the drawings, the first component 21 and the second component 22 are both hollow and partially overlap in the axial direction after being engaged, and in the overlapping portion (corresponding to the engaging section 4), the outermost diameter of the first component 21 is substantially equal to the innermost diameter of the second component 22. After the support member 3 completely passes through the inner circumference of the first component 21, it also partially abuts against the inner circumference of the second component 22, thereby simultaneously supporting the second component 22. When the support member 3 passes through the first component 21 and the second component 22 in an interference fit manner, it can cause both the first component 21 and the second component 22 to expand slightly toward the outer circumference.

[0032] As an example, the damping member 2 can be made of rubber, such as EPDM (ethylene propylene diene monomer rubber), AEM (ethylene-acrylic acid rubber) or one of synthetic rubbers, preferably EPDM. The damping member 2 thus made has excellent oxidation resistance, ozone resistance and corrosion resistance. When the engine is usually running at high temperature, it can also absorb a large amount of fillers and oil without much effect on its elastic properties. EPDM also has beneficial water vapor resistance, superheated water resistance and electrical properties. The support member 3 can be made of a metal material selected from iron, copper, stainless steel or alloy steel, and the surface is treated with anti-corrosion, so as to further increase the support strength of the damping member 2.

[0033] like Figure 3 and Figure 4 As shown, the first component 21 may be an integral component made by, for example, injection molding, glue injection, etc., and may include a first support segment 211 and a first bite segment 212 that are formed integrally. The outer diameter of the first support segment 211 may be greater than the outer diameter of the first bite segment 212 at least at the portion adjacent to the first bite segment 212, so that it can be stuck on the axial edge of the cylindrical mounting portion of the ECU module 1 and thereby retain the first component 21 in the cylindrical mounting portion in the axial direction. In particular, the outer diameter of the first support segment 211 may gradually increase in the direction axially approaching the first bite segment 212, thereby making the first support segment 211 have a truncated cone cross-sectional shape. The first bite segment 212 may have an overall cylindrical structure, and its outer diameter may be smaller than the minimum outer diameter of the first support segment 211 (for example, the outer diameter of the axial end of the first support segment 211 away from the first bite segment 212).

[0034] Furthermore, the outer peripheral surface of the first engaging segment 212 is provided with a plurality of teeth 213, and the plurality of teeth 213 are arranged along the axial direction of the first engaging segment 212. Figure 4 From the axial cross section of the first component 21 shown in FIG, each tooth portion 213 may include a first tooth surface 2131 and a second tooth surface 2132 forming an angle α. The first tooth surface 2131 extends outwardly along the radial direction of the first component 21, and the second tooth surface 2132 extends from the corresponding first tooth surface 2131 in the axial direction of the first component 21 in a direction away from the first support section 211 and extends inwardly at an angle relative to the axial direction of the first component 21. It can be understood that "outward" here refers to the radial direction of the first component 21 away from the central axis of the first component 21, and "inward" refers to the radial direction of the first component 21 close to the central axis of the first component 21.

[0035] Accordingly, continue to refer to Figure 3 and Figure 4, the second component 22 may also be an integral component and may include a second support segment 221 and a second bite segment 222 that are formed integrally. The second support segment 221 may have a similar, for example, substantially mirror-symmetrical structure to the first support segment 211, thereby also having a truncated cone cross-sectional shape. Advantageously, the outer diameter of the second support segment 221 may be greater than the outer diameter of the second bite segment 222 at least at the portion adjacent to the second bite segment 222, so as to be able to be stuck on the axial edge of the cylindrical mounting portion of the ECU module 1 and thereby retain the second component 22 in the cylindrical mounting portion in the axial direction. The second bite segment 222 may have an overall cylindrical structure, and the radial dimension of the inner circumference of the second bite segment 222 may match the radial dimension of the outer circumference of the first bite segment 212, and the radial dimension of the outer circumference of the second bite segment 222 may match the inner diameter of the cylindrical mounting portion on the ECU module 1.

[0036] Furthermore, a plurality of grooves 223 are provided in the inner circumferential surface of the second engaging segment 222, and the plurality of grooves 223 are arranged along the axial direction of the second engaging segment 222. Figure 4 From the axial cross section of the second component 22 shown in FIG, each groove portion 223 may include a first groove surface 2231 and a second groove surface 2232 forming an angle α. In this embodiment, the first groove surface 2231 extends outwardly in the radial direction of the second component 22, and the second groove surface 2232 extends from the corresponding first groove surface 2231 in the axial direction of the second component 22 toward the direction close to the second support segment 221 and extends inwardly at an angle relative to the axial direction of the second component 22. Thus, the groove portion 223 in the second bite segment 222 can be matched with the tooth portion 213 in the first bite segment 212, so that the outer circumference of the first bite segment 212 and the inner circumference of the second bite segment 222 can bite each other.

[0037] Preferably, the angle α formed by the first tooth surface 2131 and the second tooth surface 2132 of the first engaging segment 212 is between 15° and 60°, and in particular, between 40° and 45°.

[0038] In the above embodiment, when the first component 21 and the second component 22 are engaged to form the engaging section 4, the first support section 211 and the second support section 221 may be symmetrically located at both ends of the engaging section 4. The outer diameter of the portion of each of the first support section 211 and the second support section 221 adjacent to the engaging section 4 is larger than the outer diameter of the engaging section 4, so as to prevent the damping member 2 from being separated from the ECU module 1 in the axial direction when the damping member 2 is mounted on the ECU module 1.

[0039] like Figure 3 and 4As shown, the top of the support member 3 may have a flange 31 formed integrally with the support member 3 and extending radially outward. Correspondingly, the top of the first support segment 211 is provided with a step portion 214 for accommodating the flange 31. The step portion 214 enables the first support segment 211 to have two inner peripheral surfaces with larger and smaller inner diameters, and forms a drop surface formed between the two inner peripheral surfaces. As a result, the flange 31 is placed on the step portion 214 in a sunken manner, so that the top surface of the support member 3 can be kept flush with the top edge of the first support segment 211, effectively preventing the support member 3 from sliding out of the damping member 2.

[0040] like Figure 1 As shown, as a preferred embodiment, in order to facilitate the assembly of the engaging section 4 into the cylindrical mounting portion 5 in an interference fit manner, the cylindrical mounting portion 5 may have a notch 51. As a result, when the first component 21 and the second component 22 are successively inserted into the cylindrical mounting portion 5, the cylindrical mounting portion 5 may be slightly deformed in the circumferential direction due to the presence of the notch 51. This makes it possible to simply place the engaging section 4 formed by the assembled first component 21 and the second component 22 at the notch 51, and push the damping member 2 into the cylindrical mounting portion 5 by hand, so that the damping member 2 can be inserted into the cylindrical connecting portion 5. Of course, the cylindrical mounting portion 5 may also not be provided with the notch 51. In this case, the first component 21 and the second component 22 can be respectively inserted from the axial ends of the cylindrical mounting portion 5 along the notch 51. Figure 4 The damping member 2 is inserted into the cylindrical mounting portion 5 in the direction indicated by the arrows H and L to be assembled therein.

[0041] Compared with the known vibration-damping connection structure in the prior art, for the vibration-damping connection structure of the utility model, the first component 21 and the second component 22 can be engaged together in the cylindrical mounting portion 5 to form the damping member 2, and the support member 3 can pass through the hollow damping member 2 to squeeze the engagement of the first component 21 and the second component 22, so that the teeth 213 and the grooves 223 thereof can be locked to each other one by one. Therefore, the problem of the damping member 2 falling off from the ECU module 1 is effectively prevented, and the vibration-damping effect of the damping member 2 can be advantageously enhanced.

[0042] For those skilled in the art, various modifications and variations may be made to the embodiments disclosed above without departing from the scope or spirit of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from the practice of the utility model disclosed in this specification. This specification and the examples disclosed therein should be considered to be illustrative only, and the true scope of the utility model is specified by the appended claims and their equivalents.

Claims

1. A vibration-damping connection structure for mounting an ECU module (1) of an engine on a cylinder block of the engine, the vibration-damping connection structure comprising: a damping member (2) made of elastic material and hollow, the damping member (2) being intended to be mounted on the ECU module (1); as well as A support member (3) made of a rigid material and hollow; It is characterized in that The damping member (2) comprises a detachable first component (21) and a second component (22), wherein the first component (21) and the second component (22) are configured to be engaged with each other to form a hollow engaging section (4); and The support member (3) at least passes through the engaging section (4) to prevent the first component (21) and the second component (22) from being disengaged due to elastic deformation.

2. The vibration-damping connection structure according to claim 1, characterized in that: The first component (21) comprises a first supporting section (211) and a first biting section (212) connected to each other, and the second component (22) comprises a second supporting section (221) and a second biting section (222) connected to each other, and the outer peripheral surface of the first biting section (212) and the inner peripheral surface of the second biting section (222) are provided with matching biting structures.

3. The vibration-damping connection structure according to claim 2, characterized in that: The outer circumferential surface of the first engaging segment (212) is provided with a plurality of teeth (213), and the inner circumferential surface of the second engaging segment (222) is provided with a plurality of grooves (223) capable of correspondingly engaging with the plurality of teeth (213).

4. The vibration-damping connection structure according to claim 3, characterized in that: Each of the tooth portions (213) comprises a first tooth surface (2131) and a second tooth surface (2132) forming an angle (α), wherein the first tooth surface (2131) extends outwardly in the radial direction of the first component (21), and the second tooth surface (2132) extends inwardly in the axial direction of the first component (21) and at an inclination relative to the axial direction.

5. The vibration-damping connection structure according to claim 4, characterized in that: The included angle (α) between the first tooth surface (2131) and the second tooth surface (2132) is between 15° and 60°.

6. The vibration-damping connection structure according to any one of claims 2 to 5, characterized in that: The first support segment (211) has a truncated cone-shaped cross-sectional shape, and the outer diameter of a portion of the first support segment (211) adjacent to the first engaging segment (212) is greater than the outer diameter of the first engaging segment (212); the second support segment (221) has a truncated cone-shaped cross-sectional shape, and the outer diameter of a portion of the second support segment (221) adjacent to the second engaging segment (222) is greater than the outer diameter of the second engaging segment (222).

7. The vibration-damping connection structure according to any one of claims 2 to 5, characterized in that: The top of the support member (3) has a flange (31) extending radially outward, and the top of the first support section (211) is provided with a step portion (214) for accommodating the flange (31) in a sunken manner.

8. The vibration-damping connection structure according to any one of claims 1 to 5, characterized in that: The vibration-damping connection structure further comprises a cylindrical mounting portion (5) arranged on the ECU module (1), the cylindrical mounting portion (5) being configured to receive the engaging section (4) in an interference fit manner and having a notch (51).

9. An engine system, characterized in that: The engine system comprises an engine and an ECU module (1), wherein the ECU module (1) is connected to a cylinder block of the engine via a vibration-damping connection structure according to any one of claims 1 to 8.

10. A motor vehicle, characterized in that: The motor vehicle comprises a vibration-damping connection according to any one of claims 1 to 8 or an engine system according to claim 9 .

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