Vibration reduction component, heat management assembly and vehicle

Abstract

The utility model discloses a vibration reduction component, a heat management assembly and a vehicle. And a flow channel is arranged in the elastic shell. The damping fluid is arranged in the flow channel and fills at least part of the space of the flow channel. According to the vibration reduction component, the heat management assembly and the vehicle, low-frequency large-amplitude vibration, high-frequency small-amplitude vibration and multiple vibration working conditions of transition between the low-frequency large-amplitude vibration and the high-frequency small-amplitude vibration can be weakened at the same time, and the running stability of the vehicle is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle vibration reduction, in particular to a vibration reduction component, a thermal management assembly and a vehicle. Background Art

[0002] When the vehicle is working, it will generate variable frequency vibration with a frequency of 0Hz to 100Hz. When it generates low-frequency vibration, the amplitude is mainly large; when it generates high-frequency vibration, the amplitude is mainly small. Therefore, it is necessary to set up vibration damping parts to reduce the vibration of the vehicle, so as to ensure the stability of vehicle operation.

[0003] In the related art, due to the uniqueness of the vibration reduction effect of the vibration reduction component's own material, vibration reduction can only be performed for a single operating frequency band in low-frequency vibration or high-frequency vibration. Specifically, vibration reduction components using high-damping materials can effectively reduce large-amplitude deformations in low-frequency situations, but in high-frequency vibrations, they cannot recover their deformations in time after being compressed, and dynamic hardening will occur (after hardening, it is similar to the rigid connection effect), that is, vibration reduction components made of high-damping materials will lose the ability to absorb and weaken vibrations. Vibration reduction components using high-elastic materials can weaken the generation and transmission of vibrations in high-frequency situations, but they cannot effectively reduce the deformation energy of low-frequency and large-amplitude vibrations, and their effect in reducing low-frequency and large-amplitude vibrations is relatively poor. Utility Model Content

[0004] The main purpose of the utility model is to provide a vibration reduction component, a thermal management assembly and a vehicle, aiming to solve the technical problem that the vibration reduction component can only effectively reduce vibration under a single working condition.

[0005] To achieve the above-mentioned purpose, the first embodiment of the utility model provides a vibration reduction component, and the vibration reduction component includes:

[0006] An elastic shell, wherein a flow channel is provided in the elastic shell;

[0007] The damping fluid is disposed in the flow channel and fills at least a portion of the space in the flow channel.

[0008] In some embodiments, the elastic shell includes an elastic body, and the resilience e of the material of the elastic body satisfies: 60%≤e≤80%;

[0009] or;

[0010] The elastic shell comprises an elastic body, and the resilience e of the material of the elastic body satisfies: 60%≤e≤70%.

[0011] In some embodiments, the damping fluid is made of a polymer material.

[0012] In some embodiments, the viscosity μ of the damping fluid satisfies: 10000 mPa·s≤μ≤25000 mPa·s;

[0013] or;

[0014] The viscosity μ of the damping fluid satisfies: 20000 mPa·s≤μ≤25000 mPa·s.

[0015] In some embodiments, the volume V1 of the damping fluid and the volume V2 of the flow channel satisfy: 70%≤V1 / V2≤90%;

[0016] or;

[0017] The volume V1 of the damping fluid and the volume V2 of the flow channel satisfy: 80%≤V1 / V2≤85%.

[0018] In some embodiments, the volume V2 of the flow channel and the volume V3 of the elastic shell satisfy: 10%≤V2 / V3≤50%;

[0019] or;

[0020] The volume V2 of the flow channel and the volume V3 of the elastic shell satisfy: 50%≤V2 / V3≤90%.

[0021] In some embodiments, the vibration-damping component is suitable for connecting a first component; or the vibration-damping component is suitable for connecting a second component; or the vibration-damping component is suitable for connecting a first component and a second component;

[0022] The elastic shell is provided with a through hole penetrating along a first direction, and the first connecting member of the first component is connected to the elastic shell through the through hole;

[0023] The outer periphery of the elastic housing is provided with an annular groove, the second component comprises a second connecting member having a connecting hole, and the annular groove is embedded in the connecting hole of the second connecting member to achieve the connection between the vibration-damping component and the second component;

[0024] The elastic shell comprises a first end portion, a middle portion and a second end portion sequentially distributed along the first direction, one end of the middle portion is connected to the first end portion, the other end of the middle portion is connected to the second end portion, and the annular groove is provided in the middle portion;

[0025] The first end portion, the middle portion, and the second end portion are all provided with the flow channel, and the flow channel in the first end portion, the flow channel in the middle portion, and the flow channel in the second end portion are all provided with the damping fluid and are in communication with each other;

[0026] The flow channel includes a spiral section flow channel arranged in a spiral shape; along the axial direction of the elastic shell, the distance between the spiral section flow channel close to the first end of the elastic shell and the axis is D1, and the distance between the spiral section flow channel close to the second end of the elastic shell and the axis is D2, satisfying: D1≤D2.

[0027] In some embodiments, the maximum dimension of the elastic shell along the first direction is L1, the minimum distance between the wall of the first end facing away from the second end and the annular groove is L2, and the minimum distance between the wall of the second end facing away from the first end and the annular groove is L3; wherein, 2 / 5≤L2 / L1≤3 / 5, 2 / 5≤L3 / L1≤3 / 5, (L3+L2) / L1≤4 / 5.

[0028] In some embodiments, the total volume of the damping fluid is V1, the volume of the damping fluid in the first end is V4, and the volume of the damping fluid in the second end is V5; wherein, 2 / 5≤V4 / V1≤3 / 5, 2 / 5≤V5 / V1≤3 / 5, (V5+V4) / V1≤4 / 5.

[0029] In some embodiments, the flow channel also includes a straight section flow channel connected to the spiral section flow channel, the spiral section flow channel includes an upper end with a higher vertical height and a lower end with a lower vertical height, one end of the straight section flow channel is connected to the lower end, and the other end extends upward, and the vertical height of the upper end of the straight section flow channel is higher than the vertical height of the upper end of the spiral section flow channel.

[0030] In some embodiments, the damping fluid fills the spiral section flow channel and fills part of the space of the straight section flow channel, and the highest point of the damping fluid in the straight section flow channel is higher than the highest point of the damping fluid in the spiral section flow channel.

[0031] A second aspect of the present invention provides a thermal management assembly for a vehicle, wherein the thermal management assembly includes the vibration reduction component as described in the above embodiment.

[0032] A third aspect of the present invention provides a vehicle, comprising the thermal management assembly as described in the above embodiment.

[0033] Compared with the prior art, the beneficial effects of the utility model are:

[0034] In the technical solution of the utility model, the vibration reduction component includes an elastic shell and a damping fluid. The elastic shell can be connected to the first component and the second component of the vehicle respectively. A flow channel is provided in the elastic shell, and the damping fluid can be provided in the flow channel and fill part of the space of the flow channel. Compared with the prior art vibration reduction components that can only weaken low-frequency large-amplitude vibrations or high-frequency small-amplitude vibrations, when the vibration reduction component of this solution responds to low-frequency large-amplitude vibrations (below 30Hz), the damping fluid will be forced to flow in the flow channel of the elastic shell under the action of large-amplitude reciprocating motion. At that time, the friction between the fluid and the flow channel wall generates heat, and part of the kinetic energy of the vibration deformation can be converted into heat energy, thereby achieving the first vibration reduction. When the vibration frequency increases (30Hz-50Hz), the deformation of the elastic shell increases, causing the flow channel inside it to be compressed, thereby slowing down the flow of the damping fluid. At this time, the damping performance of the damping fluid itself can be used to reduce vibration, thereby achieving the second vibration reduction. When the vibration frequency rises to a high frequency state (50Hz-100Hz), the damping fluid hardens due to compression dynamics, and its performance in reducing vibration transmission decreases. However, at this time, the elastic shell can be relied on to effectively weaken and block the vibration, achieving the third level of vibration reduction. In summary, the vibration reduction component of this solution can simultaneously weaken low-frequency large-amplitude vibration, high-frequency small-amplitude vibration, and various vibration conditions in transition between the two, ensuring the stability of vehicle operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0036] Figure 1 It is a schematic diagram of a vibration reduction component in an embodiment of the utility model; wherein a single flow channel is shown and the entire elastic shell is an elastic body;

[0037] Figure 2 It is a schematic diagram of a vibration reduction component in an embodiment of the utility model, wherein two flow channels are shown;

[0038] Figure 3 It is a schematic diagram of a vibration reduction component in an embodiment of the utility model; wherein a part of the elastic shell is an elastic body, and another part of the elastic shell is a hard shell;

[0039] Figure 4 It is a structural schematic diagram of a vibration reduction component in an embodiment of the utility model;

[0040] Figure 5 It is a cross-sectional view of a vibration reduction component in an embodiment of the utility model; wherein the flow channel is arranged spirally around the through hole;

[0041] Figure 6 It is a schematic diagram of the connection between the vibration-damping component and the first component and the second component in one embodiment of the utility model;

[0042] Figure 7 It is a partial cross-sectional view of the connection between the shock absorbing component and the first component and the second component of an embodiment of the utility model; wherein the fastener is provided with a through hole and a connecting hole, and is connected to the first connecting member;

[0043] Figure 8 Schematic diagram of a vibration reduction component in an embodiment of the utility model; wherein the average distance between the first section and the axis is smaller than the average distance between the second section and the axis;

[0044] Fig. 9 It is a schematic diagram of a vibration reduction component according to an embodiment of the utility model; wherein the upper end of the spiral section flow channel along the first direction flow channel is lower than the upper end of the straight section flow channel.

[0045] Description of Figure Numbers:

[0046] Vibration-damping component 10;

[0047] Elastic housing 100; flow channel 110; first section 111; second section 112; spiral flow channel 113; upper end 1131; lower end 1132; straight flow channel 114; elastic body 120; through hole 130; axis 131;

[0048] Annular groove 140; first end portion 150; middle portion 160; second end portion 170;

[0049] Damping fluid 200;

[0050] A first connecting member 300;

[0051] Second connecting member 400; connecting hole 410;

[0052] Hard shell 500;

[0053] Fastener 600;

[0054] A first component 201; a second component 202;

[0055] The first direction X.

[0056] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0058] In the related art, due to the uniqueness of the vibration reduction effect of the vibration reduction component's own material, vibration reduction can only be performed for a single operating frequency band in low-frequency vibration or high-frequency vibration. Specifically, vibration reduction components using high-damping materials can effectively reduce large-amplitude deformations in low-frequency situations, but in high-frequency vibrations, they cannot recover their deformations in time after being compressed, and dynamic hardening will occur (after hardening, it is similar to the rigid connection effect), that is, vibration reduction components made of high-damping materials will lose the ability to absorb and weaken vibrations. Vibration reduction components using high-elastic materials can weaken the generation and transmission of vibrations in high-frequency situations, but they cannot effectively reduce the deformation energy of low-frequency and large-amplitude vibrations, and their effect in reducing low-frequency and large-amplitude vibrations is relatively poor.

[0059] In view of this, the first embodiment of the utility model provides a vibration reduction component 10, which is used in a vehicle. The vibration reduction component 10 can effectively reduce the vibration of the vehicle under various working conditions and ensure the stability of the vehicle operation. It can be understood that the vehicle can be a hybrid vehicle, a fuel-powered vehicle, a pure electric vehicle or a rail transit vehicle.

[0060] The vehicle includes a first component 201 and a second component 202. It should be noted that the first component 201 and the second component 202 can be any two components on the vehicle that can vibrate. Specifically, in some embodiments, the first component 201 can be a water pump and the second component 202 can be a motor. In other embodiments, the first component 201 can be a motor and the second component 202 can be a water pump. The specific instructions of the first component 201 and the second component 202 can be determined according to actual conditions. Some embodiments of the present application are described by taking the first component 201 as a water pump and the second component 202 as a motor as an example.

[0061] Reference Figure 6 and Figure 7, the specific setting position of the vibration-damping component 10 on the vehicle is introduced below. The vibration-damping component 10 can be connected between the first component 201 and the second component 202. Specifically, in some embodiments, the first component 201 and the second component 202 are not directly connected, and are only connected through the vibration-damping component 10. In other embodiments, the first component 201 and the second component 202 are not directly connected, but are indirectly connected through the vibration-damping component 10 and other components (such as bolts, which can be set to an incompletely tightened state to limit the maximum travel range of vibration). In other embodiments, the first component 201 and the second component 202 are partially directly connected, and partially indirectly connected through the vibration-damping component 10. The specific setting of the vibration-damping component 10 can be determined according to actual conditions. Some embodiments of the present application are described by taking the example that the first component 201 and the second component 202 are partially directly connected and partially indirectly connected through the vibration-damping component 10.

[0062] Refer to the following Figures 1 to 9 The vibration reduction component 10 according to the embodiment of the present application is introduced. Specifically, the vibration reduction component 10 includes an elastic shell 100 and a damping fluid 200 .

[0063] The elastic housing 100 can effectively reduce high-frequency vibrations (50Hz-100Hz). The specific settings of the elastic housing 100 are described below. The elastic housing 100 can be connected to the first component 201 and the second component 202 respectively. Specifically, the elastic housing 100 can be connected between the first component 201 and the second component 202. In some embodiments, the first component 201 and the second component 202 are not directly connected, but connected through the elastic housing 100. In other embodiments, the first component 201 and the second component 202 are not directly connected, but indirectly connected through the elastic housing 100 and other components (such as bolts, which can be set to an incompletely tightened state to limit the maximum travel range of vibration). In other embodiments, the first component 201 and the second component 202 are partially directly connected, and partially indirectly connected through the elastic housing 100. Some embodiments of the present application are described by taking the first component 201 and the second component 202 as an example of partial direct connection and partial indirect connection through the elastic housing 100.

[0064] It should be noted that the outer contour of the elastic housing 100 can be cylindrical, spherical, conical or square, etc. The shape of the elastic housing 100 can be determined according to the actual situation. Figure 4 In some embodiments of the present application, the elastic housing 100 is described as a cylindrical shape. The elastic housing 100 is configured to reduce the vibration transmission between the first component 201 and the second component 202 through elastic deformation, thereby ensuring the stability of vehicle operation.

[0065] A flow channel 110 is provided in the elastic housing 100. Figure 1 In some embodiments, the flow channel 110 in the elastic housing 100 may be provided as a single one. Specifically, the profile of the flow channel 110 may be spiral, cubic, annular, conical or cylindrical. Figure 5 and Figure 7 In some embodiments of the present application, the flow channel 110 is described as a spiral shape. Figure 2 In other embodiments, the flow channel 110 in the elastic housing 100 may also be provided in plurality, that is, the number of the flow channels 110 may be provided in 2, 3 or 4, etc. The shapes and arrangements of the flow channels 110 may be the same or different. Some embodiments of the present application are described by taking a single flow channel 110 as an example.

[0066] The damping fluid 200 may be disposed in the flow channel 110 and fill a portion of the flow channel 110. It is understood that in order for the damping fluid 200 to flow in the flow channel 110, the spatial volume of the damping fluid 200 should be smaller than the spatial volume of the flow channel 110, and the damping fluid 200 can effectively reduce low-frequency large-amplitude vibrations.

[0067] In the technical solution of the utility model, the vibration reduction component 10 includes an elastic shell 100 and a damping fluid 200. The elastic shell 100 can be connected to the first component 201 and the second component 202 of the vehicle respectively. A flow channel 110 is provided in the elastic shell 100, and the damping fluid 200 can be arranged in the flow channel 110 and fill part of the space of the flow channel 110. Compared with the vibration reduction components of the prior art that can only weaken low-frequency large-amplitude vibrations or high-frequency small-amplitude vibrations, when the vibration reduction component 10 of this solution responds to low-frequency large-amplitude vibrations (below 30Hz), the damping fluid 200 will be forced to flow in the flow channel 110 of the elastic shell 100 under the action of large-amplitude reciprocating motion. At that time, the friction between the fluid and the wall of the flow channel 110 generates heat, which can convert part of the kinetic energy of the vibration deformation into heat energy, thereby achieving the first vibration reduction. When the vibration frequency increases (30Hz-50Hz), the deformation of the elastic shell 100 increases, causing its inner flow channel 110 to be compressed, thereby slowing down the flow of the damping fluid 200. At this time, the damping performance of the damping fluid 200 itself can be used to reduce vibration, thereby achieving the second level of vibration reduction. When the vibration frequency rises to a high frequency state (50Hz-100Hz), the damping fluid 200 hardens due to compression dynamics, and its performance in reducing vibration transmission decreases. However, at this time, the elastic shell 100 can be relied on to effectively weaken and block vibration, thereby achieving the third level of vibration reduction. In summary, the vibration reduction component 10 of this solution can simultaneously weaken low-frequency large-amplitude vibrations, high-frequency small-amplitude vibrations, and various vibration conditions in transition between the two, thereby ensuring the stability of vehicle operation.

[0068] The elastic parameter setting of the elastic housing 100 is described below. The elastic housing 100 includes an elastic body 120, and the elastic body 120 can weaken high-frequency small-amplitude vibrations through elastic deformation. Figure 1 In some embodiments, the entire elastic shell 100 is the elastic body 120. Figure 3 In other embodiments, a part of the elastic shell 100 is the elastic body 120, and another part can be a hard shell 500 composed of a hard material. Specifically, in some embodiments, the elastic shell 100 includes a first connecting portion and a second connecting portion, the first connecting portion is used to connect the first component 201, and the second connecting portion is used to connect the second component 202, wherein the first connecting portion and the second connecting portion can be composed of a hard material, and the other parts can be composed of an elastic material. Some embodiments of the present application are described by taking the entire elastic shell 100 as an example.

[0069] The following introduces the selection range of the specific elastic parameters of the elastic body 120. In some embodiments, the resilience e of the material of the elastic body 120 satisfies: 60% ≤ e ≤ 80%. It should be noted that the resilience e of the elastic shell 100 can be obtained by testing according to the relevant standards of GB / T1681. Exemplarily, the resilience e of the material of the elastic body 120 is 60%, 63%, 67%, 70%, 75%, 78% or 80%, etc. When the resilience of the material of the elastic body 120 is small, its vibration reduction effect is poor; when the elasticity of the material of the elastic body 120 is too large, it cannot effectively support its inner flow channel 110 to ensure structural strength, and it is easy to cause the flow channel 110 to tear and cause the damping fluid 200 to leak. This solution can ensure the vibration reduction effect of the vibration reduction component 10 and enable its inner flow channel 110 to have sufficient structural strength by making the resilience of the material of the elastic body 120 meet a specific numerical range.

[0070] In other embodiments, the resilience e of the material of the elastic body 120 satisfies: 60%≤e≤70%. For example, the resilience e of the material of the elastic body 120 is 60%, 63%, 66%, 68% or 70%. In this solution, the elastic body 120 with a resilience e of 60% to 70% is selected. Compared with the elastic body 120 with a resilience e of 60% to 80%, the elasticity of the elastic body 120 is smaller, that is, the cost of the vibration reduction component 10 is reduced while ensuring the vibration reduction effect and the structural strength of the flow channel 110.

[0071] It should be noted that the main material of the elastic shell 100 can be a mixed rubber of natural rubber NR, styrene-butadiene rubber SBR, butadiene rubber BR, ethylene-propylene-diene rubber EPDM, etc., and the specific material selection can be determined according to the actual situation. In addition, the elastic shell 100 can be formed by injection or molding. The flow channel 110 in the elastic shell 100 can be made by a water-soluble core method, a metal wire flow channel 110 model, or other molding methods of the built-in flow channel 110.

[0072] The following is an introduction to the material selection of the damping fluid 200. Specifically, the material of the damping fluid 200 can be a polymer material. Usually, the relative molecular mass of low molecular weight materials is less than 1000. The following definition of "polymer material" is as follows: 4 ~10 6 Materials that can be made from polymers are called polymer materials.

[0073] This solution uses a damping fluid 200 formed of a polymer material, which has a better vibration reduction effect when the vibration condition is low-frequency and large-amplitude vibration. Since polymer materials are prone to dynamic hardening, the vibration reduction advantage of the elastic shell 100 under high-frequency and small-amplitude vibration can be fully utilized to ensure the overall vibration reduction effect of the vibration reduction component 10. It should be noted that the loss factor of the damping fluid 200 can be greater than 0.3 (1Hz / 23°C).

[0074] It should be noted that the material of the damping fluid 200 can be pure silicone gel, a compound mixture of silicone gel and other damping polymer materials (such as liquid butyl rubber, liquid nitrile rubber, liquid EPDM rubber, etc. or inorganic materials), etc. The specific setting depends on the actual situation.

[0075] The following describes the selection of viscosity parameters of the damping fluid 200. In some embodiments, the viscosity μ of the damping fluid 200 satisfies: 10000 mPa·s≤μ≤25000 mPa·s. Exemplarily, the viscosity μ of the damping fluid 200 can be 10000 mPa·s, 13400 mPa·s, 17000 mPa·s, 19500 mPa·s, 21000 mPa·s, 23456 mPa·s or 25000 mPa·s, etc. It should be noted that the viscosity of the damping fluid 200 mentioned above refers to the viscosity of the damping fluid 200 at 40°C. The present solution uses the damping fluid 200 in the above-mentioned viscosity range, which can make the damping fluid 200 fully generate heat by friction with the flow channel wall, convert part of the deformation kinetic energy into thermal energy, and enhance the vibration reduction effect of the vibration reduction component 10.

[0076] In other embodiments, the viscosity μ of the damping fluid 200 satisfies: 20000 mPa·s≤μ≤25000 mPa·s. Exemplarily, the viscosity μ of the damping fluid 200 may be 20000 mPa·s, 20500 mPa·s, 22000 mPa·s, 23500 mPa·s, 24000 mPa·s or 25000 mPa·s, etc. It can be understood that the above viscosity is also the viscosity of the damping fluid 200 at 40°C. The present solution selects the damping fluid 200 in the above viscosity range, which can reduce the cost of the damping fluid 200 while ensuring the vibration reduction effect.

[0077] The filling ratio of the damping fluid 200 in the flow channel 110 is introduced below. In some embodiments, the volume V1 of the damping fluid 200 and the volume V2 of the flow channel 110 satisfy: 70%≤V1 / V2≤90%. Exemplarily, V1 / V2 can be 70%, 75%, 78%, 80%, 85%, 87% or 90%, etc. In this solution, the volume of the damping fluid 200 and the volume of the flow channel 110 are in a specific ratio. On the one hand, the damping fluid 200 can flow fully in the flow channel 110 to fully reduce vibration. On the other hand, when the damping fluid 200 is dynamically hardened, the redundant space of the flow channel 110 can increase the elastic deformation space of the elastic shell 100, thereby ensuring the vibration reduction effect of the vibration reduction component 10.

[0078] In other embodiments, the volume V1 of the damping fluid 200 and the volume V2 of the flow channel 110 satisfy: 80%≤V1 / V2≤85%. For example, V1 / V2 may be 80%, 82%, 84% or 85%, etc. In this solution, the damping fluid 200 and the flow channel 110 adopt the above volume ratio, which can further ensure the vibration reduction effect of the vibration reduction component 10.

[0079] The following introduces the spatial ratio of the flow channel 110 and the elastic shell 100. In some embodiments, the volume V2 of the flow channel 110 and the volume V3 of the elastic shell 100 satisfy: 10% ≤ V2 / V3 ≤ 50%. Exemplarily, V2 / V3 can be 10%, 19%, 24%, 30%, 46% or 50%, etc. It should be noted that the volume of the elastic shell 100 mentioned in the embodiment of the present application is the volume of the elastic shell 100 after removing the flow channel 110. In this solution, the volume of the flow channel 110 and the volume of the elastic shell 100 are in the above ratio, which can not only ensure the vibration reduction effect of the damping fluid 200 for low-frequency large-amplitude vibrations, but also ensure the vibration reduction effect of the elastic shell 100 for high-frequency small-amplitude vibrations.

[0080] In other embodiments, the volume V2 of the flow channel 110 and the volume V3 of the elastic housing 100 satisfy: 50% ≤ V2 / V3 ≤ 90%. For example, V2 / V3 can be 50%, 55%, 66%, 72%, 80% or 90%, etc. It can be understood that the volume of the elastic housing 100 mentioned in this embodiment is also the volume of the elastic housing 100 after removing the flow channel 110. The volume of the flow channel 110 of this solution and the volume of the elastic housing 100 are in the above ratio, that is, it can effectively reduce vibration under various vibration conditions to ensure the stability of vehicle operation.

[0081] The vibration-damping components 10 of some embodiments of the present application and comparative examples were tested, and the data in the following table were obtained.

[0082]

[0083] Referring to Example 1 and Comparative Example 1, the noise of the vibration damping component 10 in Example 1 is lower than that in Comparative Example 1 under low-frequency and high-frequency vibrations; the vibration amplitude of the vibration damping component 10 in Example 1 is smaller than that in Comparative Example 1 under low-frequency vibrations; the dynamic stiffness and dynamic-static ratio of the vibration damping component 10 in Example 1 under high-frequency vibrations are lower than those in Comparative Example 1. That is, when the volume V1 of the damping fluid 200 and the volume V2 of the flow channel 100 satisfy: 70%≤V1 / V2≤90%, the vibration damping effect of the vibration damping component 10 is better.

[0084] Referring to Example 2 and Comparative Example 2, the noise of the vibration damping component 10 in Example 2 is lower than that in Comparative Example 2 under low-frequency and high-frequency vibrations; the vibration amplitude of the vibration damping component 10 in Example 2 is smaller than that in Comparative Example 2 under low-frequency vibrations; and the dynamic stiffness and dynamic-static ratio of the vibration damping component 10 in Example 2 under high-frequency vibrations are lower than those in Comparative Example 2. That is, when the viscosity μ of the damping fluid 200 satisfies: 20000 mPa·s≤μ≤25000 mPa·s, the vibration damping effect of the vibration damping component 10 is better.

[0085] Referring to Example 3 and Comparative Example 3, the noise of the vibration-damping component 10 in Example 3 is the same as that in Comparative Example 3 under low-frequency vibration, but the noise of Example 3 is significantly lower than that in Comparative Example 3 under high-frequency vibration; the vibration amplitude in Example 3 is smaller than that in Comparative Example 3 under low-frequency vibration; the dynamic stiffness and dynamic-static ratio of Example 3 under high-frequency vibration are significantly smaller than those in Comparative Example 3. That is, when the resilience e of the material of the elastic body 120 satisfies: 60%≤e≤80%, the vibration-damping component 10 has an excellent vibration-damping effect, especially a significant vibration-damping effect under high-frequency vibration.

[0086] The structural arrangement of the elastic housing 100 is described below. To facilitate description and understanding of the specific structure of the elastic housing 100, a first direction X is defined. Figure 4 The direction in is used as a reference, and the direction from bottom to top is the first direction X. In some embodiments, the elastic housing 100 is provided with a through hole 130 that is arranged along the first direction X. The shape of the through hole 130 can be set to be circular, square or polygonal, etc., and some embodiments of the present application are described by taking the through hole 130 as a circular hole as an example.

[0087] One end of the elastic housing 100 along the first direction X may be connected to the first component 201. Figure 4 The direction in is used as a reference, and the elastic housing 100 and the first component 201 can be connected along the upper end from bottom to top, or can be connected along the lower end from bottom to top. In some embodiments, the through hole 130 can be penetrated by bolts to connect the elastic housing 100 and the first component 201.

[0088] The positional relationship between the flow channel 110 and the through hole 130 of the elastic housing 100 is described below. In some embodiments, the flow channel 110 can be arranged around the through hole 130. It can be understood that the flow channel 110 can partially surround the through hole 130, or can be arranged around the through hole 130. In other embodiments, multiple flow channels 110 can be provided, and one flow channel 110 and another flow channel 110 can be arranged symmetrically about the through hole 130. Some embodiments of the present application are described by taking the flow channel 110 arranged around the through hole 130 as an example.

[0089] Reference Figure 5 and Figure 7 In some embodiments, the flow channel 110 is configured to be spirally arranged around the axis 131 of the through hole 130, that is, the flow channel 110 is arranged in a spiral shape. It can be understood that the specific pitch, lead and rotation direction of the flow channel 110 can be determined according to actual conditions. Because the damping fluid in the annular flow channel has a large radial flow space and a small vertical flow space perpendicular to the radial direction, its vertical damping effect is poor. Figure 5 Taking the orientation in as a reference, this solution sets the flow channel to a spiral shape, which can effectively improve the shock absorbing effect of the shock absorbing component along the first direction (ie, vertical direction) and ensure the stability of vehicle operation.

[0090] The flow channel 110 includes a first section 111 and a second section 112 distributed along its own extension direction. The first section 111 is located on one side of the second section 112 along the first direction X. Figure 8 As a reference, the first section 111 may be the upper flow channel 110 along the direction from bottom to top, and the second section 112 may be the lower flow channel 110 along the direction from bottom to top. It should be noted that the first section 111 may be separated from the second section 112, or may be connected to the second section 112. Figure 8 In some embodiments, the average distance between the first section 111 and the axis 131 is smaller than the average distance between the second section 112 and the axis 131, that is, when viewed along the first direction X, the surrounding area of ​​the first section 111 of the flow channel 110 is smaller than the surrounding area of ​​the second section 112 of the flow channel 110. Further, the surrounding area from the first section 111 to the second section 112 along the first direction X may vary uniformly or non-uniformly. Figure 5 In other embodiments, the average distance between the first segment 111 and the axis 131 may also be equal to the average distance between the second segment 112 and the axis 131. In other embodiments, the average distance between the first segment 111 and the axis 131 may be greater than the average distance between the second segment 112 and the axis 131. Some embodiments of the present application are described by taking the average distance between the first segment 111 and the axis 131 as equal to the average distance between the second segment 112 and the axis 131 as an example.

[0091] Reference Figure 6In some embodiments, the vibration-damping component 10 can be connected to the first component 201 and the second component 202. Specifically, the vibration-damping component 10 can be connected to the first connecting member 300 of the first component 201 and the second connecting member 400 of the second component 202. The second connecting member 400 is provided with a connecting hole 410. The elastic housing 100 is provided with a through hole 130 that is arranged to penetrate along the first direction X. The shape of the through hole 130 can be set to be circular, square or polygonal, etc., and some embodiments of the present application are described by taking the through hole 130 as a circular hole as an example.

[0092] In some embodiments, one end of the elastic housing 100 along the first direction X is suitable for connecting to the first connector 300, and the elastic housing 100 is suitable for passing through the connecting hole 410 along the first direction X and connecting to the second connector 400, which can effectively improve the stability of the connection between the elastic housing 100 and the first component 201 and the second component 202. In other embodiments, both the first connector 300 and the second connector 400 can be provided with a connecting hole 410, and the elastic housing 100 can be simultaneously provided with connecting holes 410 of the first component 201 and the second component 202. Some embodiments of the present application are described by taking the former (only the second connector 400 is provided with a connecting hole 410) as an example.

[0093] Reference Figure 4 and Figure 5 In some embodiments, the outer circumference of the elastic housing 100 is provided with an annular groove 140 arranged around the through hole 130. It should be noted that the annular groove 140 may surround a portion of the length or the entire outer circumference of the through hole 130.

[0094] The annular groove 140 is suitable for the second connecting member 400 to be embedded. It is understood that the elastic housing 100 can be elastically deformed so that the second connecting member 400 is embedded in the annular groove 140, thereby ensuring the stability of the connection between the elastic housing 100 and the second connecting member 400.

[0095] It should be noted that in some embodiments, a protrusion may be provided on the annular groove 140 and a groove may be provided on the second connecting member 400 . The protrusion passes through the groove to further improve the stability of the connection between the elastic housing 100 and the second connecting member 400 .

[0096] Reference Figure 5, the specific connection method between the elastic housing 100 and the first connecting member 300 and the second connecting member 400 of an embodiment is introduced below. The elastic housing 100 has a first end 150, a middle portion 160 and a second end 170 distributed in sequence along the first direction X. Among them, one end of the middle portion 160 along the first direction X is connected to the first end 150, and the other end of the middle portion 160 along the first direction X is connected to the second end 170. The annular groove 140 is provided in the middle portion 160 and is arranged around the through hole 130. It can be understood that the middle portion 160 can be the middle portion between the first end 150 and the second end 170, or it can be the middle portion adjacent to the first end 150 or the second end 170. It depends on the actual situation. Some embodiments of the present application are described by taking the middle portion 160 as the middle portion between the first end 150 and the second end 170 as an example.

[0097] It should be noted that a fastener 600 can be additionally provided to pass through the through hole 130, so that one end of the fastener 600 extending out of the first end 150 is connected to the first component 201, and the other end extending out of the second end 170 abuts against the side of the second end 170 facing away from the first end 150, so that the elastic shell 100 is stably connected to the first component 201 and the second component 202, thereby achieving stable vibration reduction.

[0098] Reference Figures 4 to 7 In some embodiments, the first end 150, the middle part 160 and the second end 170 of the elastic shell 100 are all provided with a flow channel 110. It should be noted that the flow channels 110 in the first end 150, the middle part 160 and the second end 170 can be the same or different. In addition, the flow channel 110 in the first end 150, the flow channel 110 in the middle part 160 and the flow channel 110 in the second end 170 are all provided with a damping fluid 200 and the flow channels 110 are connected to each other. In this solution, when the second component 202 vibrates in a direction close to the first component 201, the damping fluid 200 in the flow channels 110 of the first end 150 and the middle part 160 can effectively reduce vibration. When the second component 202 vibrates in a direction away from the first component 201, the damping fluid 200 in the flow channel 110 of the middle portion 160 and the second end portion 170 can also effectively reduce vibration. Therefore, the vibration reduction component 10 of this solution can stably reduce vibration under various working conditions to ensure the stability of vehicle operation.

[0099] In some embodiments, the elastic housing 100 can be formed by injection vulcanization of a highly elastic elastomer. The flow channel 110 in the elastic housing 100 does not need to use a preformed flow channel tube. A water-soluble core can be used to make a flow channel model, which is then placed in a mold and coated with injection rubber; or a metal wire flow channel 110 model is used, which is placed in a mold and injected with rubber and then pulled out. After the damping fluid 200 is filled, silicone sealant, epoxy resin glue, acrylate glue, etc. can be used to seal the flow channel opening.

[0100] In some embodiments, the flow channel 110 includes a spiral section flow channel 113 arranged in a spiral. Along the direction of the axis 131 of the elastic shell 100, the distance between the spiral section flow channel 113 close to the first end 150 of the elastic shell 100 and the axis 131 is D1, and the distance between the spiral section flow channel 113 close to the second end 170 of the elastic shell 100 and the axis 131 is D2. Among them, D1≤D2, it should be noted that the specific size between D1 and D2 can be determined according to actual conditions, and the above arrangement adopted in this solution can ensure the vibration reduction effect of the vibration reduction assembly 10.

[0101] Reference Figure 5 , the specific structural setting of the elastic shell 100 is introduced below. Specifically, in some embodiments, the maximum dimension of the elastic shell 100 along the first direction X is L1, that is, the thickness dimension of the elastic shell 100 along the vertical direction is L1. The minimum distance between the wall of the first end 150 away from the second end 170 and the annular groove 140 is L2. The minimum distance between the wall of the second end 170 away from the first end 150 and the annular groove 140 is L3. Among them, 2 / 5≤L2 / L1≤3 / 5, 2 / 5≤L3 / L1≤3 / 5, (L3+L2) / L1≤4 / 5. Exemplarily, L2 / L1 can be 2 / 5, 9 / 20, 1 / 2 or 3 / 5, etc.; L3 / L1 can be 2 / 5, 9 / 20, 1 / 2 or 3 / 5, etc.; (L3+L2) / L1 can be 4 / 5, 3 / 5 or 2 / 5, etc. In this solution, the elastic shell 100 adopts the above-mentioned size, that is, the annular groove 140 is arranged in the middle area between the first end 150 and the second end 170, that is, the two ends of the elastic shell 100 are symmetrically arranged about the annular groove 140. The elastic shell 100 in this solution is easy to process and can ensure the uniformity of the vibration reduction effect at both ends of the elastic shell 100.

[0102] The specific settings of the damping fluid 200 at various locations in the flow channel 110 are described below. In some embodiments, the total volume of the damping fluid 200 in the flow channel 110 is set to V1. The volume of the damping fluid 200 in the first end 150 is set to V4. The volume of the damping fluid 200 in the second end 170 is set to V5. Among them, 2 / 5≤V4 / V1≤3 / 5, 2 / 5≤V5 / V1≤3 / 5, (V5+V4) / V1≤4 / 5. Exemplarily, V4 / V1 can be 2 / 5, 9 / 20, 1 / 2 or 3 / 5, etc.; V5 / V1 can be 2 / 5, 9 / 20, 1 / 2 or 3 / 5, etc.; (V5+V4) / V1 can be 4 / 5, 3 / 5 or 2 / 5, etc. In this solution, when vibration mainly occurs at the first end 150, the damping fluid 200 in the first end 150 can fully flow to achieve shock absorption, and when vibration mainly occurs at the second end 170, the damping fluid 200 in the second end 170 can fully flow to achieve shock absorption. Since the fluid volumes at the first end 150 and the second end 170 tend to be consistent, this solution can ensure the uniformity of vibration absorption at the first end 150 and the second end 170, and improve the vibration absorption effect.

[0103] Reference Figure 6 In some embodiments, the vibration reduction component 10 can be connected to the first connecting member 300 of the first component 201 and the second connecting member 400 of the second component 202. The second connecting member 400 is provided with a connecting hole 410. The elastic housing 100 is provided with a through hole 130 that is arranged along the first direction X. One end of the elastic housing 100 along the first direction X can be connected to the first connecting member 300, and the elastic housing 100 can be provided with a connecting hole 410 along the first direction X and connected to the second connecting member 400, that is, the stability of the connection between the elastic housing 100 and the first component 201 and the second component 202 can be effectively improved.

[0104] Reference Fig. 9 In some embodiments, the flow channel 110 includes a spiral flow channel 113 and a straight flow channel 114. Fig. 9 With reference to the direction in FIG. 1 , the spiral section flow channel 113 may be the portion on the left side of the flow channel 110 , and the straight section flow channel 114 may be the portion on the right side of the flow channel 110 . The spiral section flow channel 113 may be connected to the straight section flow channel 114 .

[0105] The spiral section flow channel 113 is arranged spirally around the through hole 130 with the axis 131 of the through hole 130 as the central axis 131. The spiral section flow channel 113 includes an upper end 1131 and a lower end. Among them, the vertical height of the upper end 1131 can be higher than the vertical height of the lower end 1132. One end of the straight section flow channel 114 is connected to the lower end 1132, and the other end extends upward. It should be noted that the vertical height of the upper end of the straight section flow channel 114 is higher than the vertical height of the upper end 1131 of the spiral section flow channel 113.

[0106] Because the damping fluid 200 needs to flow fully to utilize its damping performance to reduce vibration, when the flow channel 110 is not provided with a straight section flow channel 114, that is, the fluid filling volume in the spiral section flow channel 113 is small, and the vibration reduction effect is poor. In this solution, the flow channel 110 includes the spiral section flow channel 113 and the straight section flow channel 114. When a large vibration occurs at the spiral section flow channel 113 of the elastic shell 100, the damping fluid 200 at the straight section flow channel 114 can flow to the spiral section flow channel 113, so that the damping fluid 200 at the spiral section flow channel 113 can fully participate in vibration reduction, thereby improving the vibration reduction effect.

[0107] In some embodiments, the damping fluid 200 can fill up the spiral section flow channel 113 and fill up part of the space of the straight section flow channel 114. Specifically, the highest point of the damping fluid 200 in the straight section flow channel 114 is higher than the highest point of the damping fluid 200 in the spiral section flow channel 113, that is, it can ensure that the damping fluid 200 fills up the spiral section flow channel 113, effectively increasing the spatial volume of the damping fluid 200 in the spiral section flow channel 113, and ensuring the vibration reduction effect of the spiral section flow channel 113.

[0108] The second embodiment of the utility model proposes a thermal management assembly, which is used for a vehicle. It should be noted that the thermal management assembly of a vehicle refers to a composite mechanical part that combines a water pump and a motor. The thermal management assembly includes a vibration reduction component 10 as in the above embodiment. Compared with the prior art vibration reduction components that can only weaken low-frequency large-amplitude vibrations or high-frequency small-amplitude vibrations, the vibration reduction component 10 of this solution, when dealing with low-frequency large-amplitude vibrations (below 30Hz), the damping fluid 200 will be forced to flow in the flow channel 110 of the elastic shell 100 under the action of large-amplitude reciprocating motion. At that time, the fluid and the wall of the flow channel 110 generate heat by friction, and a part of the kinetic energy of the vibration deformation can be converted into heat energy to achieve the first vibration reduction. When the vibration frequency increases (30Hz-50Hz), the deformation of the elastic shell 100 increases, so that the flow channel 110 inside it is compressed, so that the flow of the damping fluid 200 slows down. At this time, the damping performance of the damping fluid 200 itself can be used to reduce vibration, and the second vibration reduction is achieved. When the vibration frequency rises to a high frequency state (50Hz-100Hz), the damping fluid 200 is dynamically hardened due to compression, and its performance of reducing vibration transmission decreases. However, at this time, the elastic shell 100 can be relied on to effectively weaken and block the vibration, thereby achieving the third level of vibration reduction. In summary, the vibration reduction component 10 of this solution can simultaneously weaken low-frequency large-amplitude vibration, high-frequency small-amplitude vibration, and various vibration conditions in transition between the two, thereby ensuring the stability of vehicle operation.

[0109] The third embodiment of the utility model provides a vehicle, which includes a thermal management assembly as described in the above embodiment. The vehicle of this solution is provided with a vibration reduction component 10, so that it can simultaneously weaken low-frequency large-amplitude vibration, high-frequency small-amplitude vibration and various vibration conditions in transition between the two, thereby ensuring the stability of vehicle operation.

[0110] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0111] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or", "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. 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 contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0112] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A vibration damping component, It is characterized in that The vibration reduction component comprises: An elastic shell, wherein a flow channel is provided in the elastic shell; The damping fluid is disposed in the flow channel and fills at least a portion of the space in the flow channel.

2. The vibration damping component according to claim 1, It is characterized in that The elastic shell comprises an elastic body, and the resilience e of the material of the elastic body satisfies: 60%≤e≤80%; or; The elastic shell comprises an elastic body, and the resilience e of the material of the elastic body satisfies: 60%≤e≤70%.

3. The vibration damping component according to claim 1, It is characterized in that The material of the damping fluid is a polymer material.

4. The vibration damping component according to claim 1, It is characterized in that The viscosity μ of the damping fluid satisfies: 10000 mPa·s≤μ≤25000 mPa·s; or; The viscosity μ of the damping fluid satisfies: 20000 mPa·s≤μ≤25000 mPa·s.

5. The vibration damping component according to claim 1, It is characterized in that The volume V of the damping fluid 1 The volume V of the flow channel 2 Satisfy: 70% ≤ V 1 / V 2 ≤90%; or; The volume V of the damping fluid 1 The volume V of the flow channel 2 Satisfy: 80% ≤ V 1 / V 2 ≤85%.

6. The vibration damping component according to claim 1, It is characterized in that The volume V of the flow channel 2 The volume V of the elastic shell 3 Satisfy: 10% ≤ V 2 / V 3 ≤50%; or; The volume V of the flow channel 2 The volume V of the elastic shell 3 Satisfy: 50% ≤ V 2 / V 3 ≤90%.

7. The vibration damping component according to claim 1, It is characterized in that The vibration-damping component is suitable for connecting a first component; or the vibration-damping component is suitable for connecting a second component; or the vibration-damping component is suitable for connecting a first component and a second component; The elastic shell is provided with a through hole penetrating along a first direction, and the first connecting member of the first component is connected to the elastic shell through the through hole; An annular groove is provided on the outer periphery of the elastic housing, the second component comprises a second connecting member having a connecting hole, the annular groove is embedded in the connecting hole of the second connecting member to achieve connection between the vibration-damping component and the second component; The elastic shell comprises a first end portion, a middle portion and a second end portion sequentially distributed along the first direction, one end of the middle portion is connected to the first end portion, the other end of the middle portion is connected to the second end portion, and the annular groove is provided in the middle portion; The first end portion, the middle portion, and the second end portion are all provided with the flow channel, and the flow channel in the first end portion, the flow channel in the middle portion, and the flow channel in the second end portion are all provided with the damping fluid and are in communication with each other; The flow channel includes a spiral section flow channel arranged in a spiral manner; along the axis direction of the elastic shell, the distance between the spiral section flow channel close to the first end of the elastic shell and the axis is D 1 The distance between the spiral section flow channel near the second end of the elastic shell and the axis is D 2 , satisfied: D 1 ≤D 2 .

8. The vibration damping component according to claim 7, It is characterized in that The maximum dimension of the elastic shell along the first direction is L 1 , the minimum distance between the wall of the first end facing away from the second end and the annular groove is L 2 , the minimum distance between the wall of the second end facing away from the first end and the annular groove is L 3 ; Among them, 2 / 5≤L 2 / L 1 ≤3 / 5、2 / 5≤L 3 / L 1 ≤3 / 5, (L 3 +L 2 ) / L 1 ≤4 / 5.

9. The vibration damping component according to claim 7, It is characterized in that The total volume of the damping fluid is V 1 , the volume of the damping fluid in the first end is V 4 , the volume of the damping fluid in the second end is V 5 ; Among them, 2 / 5≤V 4 / V 1 ≤3 / 5、2 / 5≤V 5 / V 1 ≤3 / 5, (V 5 +V 4 ) / V 1 ≤4 / 5.

10. The vibration damping component according to claim 7, It is characterized in that The flow channel also includes a straight section flow channel connected to the spiral section flow channel, the spiral section flow channel includes an upper end with a higher vertical height and a lower end with a lower vertical height, one end of the straight section flow channel is connected to the lower end, and the other end extends upward, and the vertical height of the upper end of the straight section flow channel is higher than the vertical height of the upper end of the spiral section flow channel.

11. The vibration damping component according to claim 10, It is characterized in that The damping fluid fully fills the spiral section flow channel and fills part of the space of the straight section flow channel, and the highest point of the damping fluid in the straight section flow channel is higher than the highest point of the damping fluid in the spiral section flow channel.

12. A thermal management assembly for a vehicle, It is characterized in that The thermal management assembly comprises the vibration reduction component according to any one of claims 1-11.

13. A vehicle, It is characterized in that Includes the thermal management assembly of claim 12.

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