CN205160271U - Vibration damper and air conditioner motor support - Google Patents

Abstract

The utility model relates to a vibration damper and air conditioner motor support relates to damping technical field. The main technical scheme adopted is as follows: a vibration damping device comprises a first fixing piece, a second fixing piece and an elastic piece. Wherein, the one end and the first mounting of elastic component are connected, and the other end is connected with the second mounting. The first fixing piece and the second fixing piece are used for being fixed on the vibration source; the elastic piece is used for being sleeved on the vibration source. When the vibration source vibrates, the forced vibration of the elastic part and the vibration of the vibration source generate phase difference, and the damping effect is generated on the vibration of the vibration source. An air conditioner motor support includes air conditioner motor support body and above-mentioned vibration damper. The utility model discloses mainly used weakens the vibration of vibration source, and can avoid the drawback that "buffering formula" damping structure and rigid damping piece damping structure exist.

Description

A vibration damping device and an air conditioner motor support

technical field

The utility model relates to the technical field of vibration reduction, in particular to a vibration reduction device and an air conditioner motor bracket.

Background technique

At present, due to the vibration of the fan, the motor support of the large cooling capacity side air multi-connected air conditioner has several relatively stable vibration frequencies. These vibration frequencies have the hidden danger of resonance with the natural frequency of the motor support. Once the motor support vibrates severely , It is easy to cause deformation and shaking of the bracket, resulting in motor vibration and unbalanced fan vibration. In severe cases, it will cause collision between the fan blade and the guide ring, which will increase the noise of the fan system and affect its sound quality.

At present, there is no effective vibration reduction method for the air conditioner motor support. The vibration reduction method used in other occasions is mainly "buffer type" vibration reduction; that is, the "buffering" effect of elastic objects is used to offset the vibration of objects, such as spring vibration reduction, gas vibration reduction and rubber vibration reduction, etc. However, the inventor of the utility model found that the "buffering" vibration reduction method has the following disadvantages:

First, there is no place to install a "buffer" vibration reduction mechanism for a mechanism whose bottom needs to be directly fixed on the chassis, such as the air conditioner motor bracket;

Second, the "buffering" vibration damping has a unidirectionality, that is, it acts as a resistance when it is pressed, and acts as a buffer, and when it leaves, it will exert a driving force, which is harmful to the vibration damping.

In addition, there is currently a rigid damping block vibration reduction method. Although the rigid damping block can achieve a good vibration reduction effect, when it is rigidly connected to the structure to be damped, it will cause the rigid damping block and the structure to be damped. There is a stable natural frequency, so that there is a hidden danger of resonance between the rigid damping block and the damped structure as a whole with other vibrating components.

Utility model content

In view of this, the utility model provides a vibration damping device and an air conditioner motor bracket, the main purpose of which is to reduce the vibration of the vibration source.

In order to achieve the above object, the utility model mainly provides the following technical solutions:

On the one hand, an embodiment of the present invention provides a vibration damping device, comprising:

first fixture;

second fixture;

an elastic member, one end of the elastic member is connected to the first fixing member, and the other end is connected to the second fixing member;

Wherein, the first fixing piece and the second fixing piece are used to be fixed on the vibration source; the elastic piece is used to be set on the vibration source;

When the vibration source vibrates, the forced vibration of the elastic member generates a phase difference with the vibration of the vibration source, thereby producing a damping effect on the vibration of the vibration source.

The purpose of the utility model and the solution to its technical problems can also be further realized by adopting the following technical measures.

Preferably, the elastic member is a spring.

Preferably, both the first fixing piece and the second fixing piece are insertion blocks, one end of the insertion block is fixed to the elastic member, and the other end is used to be inserted into an insertion hole provided on the vibration source.

Preferably, both the first fixing member and the second fixing member are fixing blocks, and the fixing blocks are fixed on the vibration source by fasteners.

Preferably, the fixing positions of the first fixing member and the vibration source, and the fixing positions of the second fixing member and the vibration source are axisymmetric or centrosymmetric.

Preferably, the first fixing part, the elastic part and the second fixing part are of an integrated structure.

Preferably, there is a gap between the elastic member and the vibration source.

On the other hand, an embodiment of the present utility model provides an air conditioner motor bracket, and the air conditioner motor bracket includes:

Air conditioner motor bracket body;

A vibration damping device as described in any one of the above;

Wherein, the first fixing part and the second fixing part are respectively fixed on the air conditioner motor support body; the elastic part is sleeved on the air conditioner motor support body.

Preferably, when the first fixing piece and the second fixing piece are inserting blocks, the air conditioner motor bracket body is respectively provided with insertion holes at positions fixed to the first fixing piece and the second fixing piece;

The insertion block is adapted to the insertion hole, so as to realize the fixed connection between the first fixing piece, the second fixing piece and the air conditioner motor support body.

With the above technical solution, the vibration damping device and the air conditioner motor bracket body of the present invention have at least the following beneficial effects:

1. The vibration damping device provided by the embodiment of the utility model is designed by utilizing the hysteresis principle of the elastic part when it is forced to vibrate. Vibration in the vibration direction can act as a hindrance, thereby reducing the vibration source and avoiding the harmful driving force when the existing "buffering" vibration-absorbing elastic object recovers.

2. The vibration damping device provided by the embodiment of the utility model is also designed using the principle of interference. When the object and other vibration sources resonate, the vibration damping device of the embodiment of the utility model can destroy the original design frequency of the object and avoid Resonant frequency, in order to protect the device.

3. The vibration damping device provided by the embodiment of the utility model adopts the method of external elastic parts to the vibration source for vibration damping, which does not require the vibration source to have a section, so that the overall structure of the vibration source and the vibration damping device is more stable.

4. The vibration damping device provided by the embodiments of the present invention can be applied to many machine parts, so that the machine parts can avoid the resonance point, thereby reducing the amount of redesign and the design period of the machine parts.

5. The damping device provided by the embodiment of the utility model adopts an elastic member with disturbance properties as damping, it is not rigidly connected with the vibration source, and does not have a stable natural frequency, so the whole formed after being connected with the vibration source is not stable. It will resonate with other vibrating parts to protect the vibration source.

6. The air conditioner motor bracket provided by the embodiment of the utility model includes the air conditioner motor bracket body and the vibration damping device. By fixing the two ends of the elastic parts of the vibration damper on the air conditioner motor bracket body, the vibration of the air conditioner motor bracket body can be weakened. , it can also prevent the air conditioner motor bracket body from resonating with the air conditioner motor, so that the stability of the air conditioner motor bracket provided by the embodiment of the present invention is good.

The above description is only an overview of the technical solution of the utility model. In order to understand the technical means of the utility model more clearly and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with accompanying drawings. rear.

Description of drawings

Fig. 1 is the application schematic diagram of a kind of damping device provided by the embodiment of the present invention;

Fig. 2 is the application schematic diagram of another kind of damping device provided by the embodiment of the present invention;

Fig. 3 is an application schematic diagram of another vibration damping device provided by the embodiment of the present invention;

Fig. 4 is an application schematic diagram of another vibration damping device provided by the embodiment of the present invention;

Fig. 5 is a side view of part A in Fig. 4 .

detailed description

In order to further explain the technical means and effects of the utility model to achieve the intended purpose of the utility model, the specific implementation, structure, features and effects of the utility model application are described in detail below in conjunction with the accompanying drawings and preferred embodiments. The description is as follows. In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

Example 1

On the one hand, this embodiment provides a vibration damping device for damping the vibration of a vibration source. As shown in FIGS. 1 to 4 , the vibration damping device includes a first fixing part 11 , a second fixing part 12 and an elastic part 13 . Wherein, one end of the elastic member 13 is connected to the first fixing member 11 , and the other end is connected to the second fixing member 12 .

Wherein, the first fixing member 11 and the second fixing member 12 in this embodiment are used for fixing on the vibration source 2 . The elastic member 13 is used to fit on the vibration source 2 . When the vibration source 2 vibrates, the forced vibration of the elastic member 13 and the vibration of the vibration source produce a certain phase difference, so that the elastic member 13 produces a damping effect on the vibration of the vibration source 2, thereby weakening the vibration of the vibration source, and making the vibration source have Unstable vibration frequency.

Compared with the prior art, first, the damping device provided in this embodiment is designed using the hysteresis principle of the elastic member 13 when it is forced to vibrate. By fixing the two ends of the elastic member 13 with the vibration source 2, the The elastic member 13 can hinder the vibration of the vibration source in both vibration directions, so as to weaken the vibration source and avoid the harmful driving force when the existing "buffering" vibration-damping elastic body recovers. Second, the damping device provided in this embodiment is also designed using the principle of interference. When the object and other vibration sources resonate, the vibration damping device in this embodiment can destroy the original design frequency of the object and avoid the resonance frequency. In order to achieve the role of device protection. Thirdly, the vibration damping device provided in this embodiment adopts the method of external elastic member 13, which does not need to have a section, so the structure is more stable. Fourth, the vibration damping device of this embodiment can be applied to many machine parts, so that the machine parts can avoid the resonance point, thereby reducing the amount of redesign and the design period of the machine parts.

Preferably, the elastic member 13 in this embodiment is a spring. When the vibration damping device is in use, the spring is directly set on the vibration source 2 , and the two ends of the spring are respectively fixed on the vibration source 2 through the first fixing part 11 and the second fixing part 12 .

Preferably, when the vibration damping device in this embodiment is installed, the deformation direction of the elastic member 13 is consistent with the vibration direction of the vibration source 2 .

Preferably, the elastic member 13 , the first fixing member 11 and the second fixing member 12 in this embodiment are designed in one piece.

Example 2

Preferably, this embodiment provides a vibration damping device. Compared with Embodiment 1, as shown in Figure 1 and Figure 2, the structures of the first fixing member 11 and the second fixing member 12 in this embodiment are consistent Both are set to insert blocks. The vibration source 2 is provided with an insertion hole adapted to the insertion block. One end of the insertion block is fixed to the end of the elastic member 13, and the other end is inserted into the insertion hole provided on the vibration source 2, thereby realizing the fixing of the first fixing member 11, the second fixing member 12 and the vibration source 2.

In FIG. 1 and FIG. 2 , the fixing positions of the first fixing member 11 and the vibration source 2 in FIG. 1 , and the fixing positions of the second fixing member 12 and the vibration source 2 are axisymmetric. In FIG. 2 , the fixing positions of the first fixing member 11 and the vibration source 2 , and the fixing positions of the second fixing member 12 and the vibration source 2 are center-symmetrical.

Example 3

Preferably, this embodiment provides a vibration damping device. Compared with Embodiment 1, as shown in FIG. 3, FIG. 4 and FIG. 5, the first fixing member 11 and the second fixing member 12 in this embodiment The structure is the same, and they are all set as fixed blocks. The fixed block is fixed on the vibration source 2 through the connecting structure.

Preferably, the connection structure may be fasteners such as bolts, screws and pins.

In FIG. 3 and FIG. 4 , the fixing positions of the first fixing member 11 and the vibration source 2 in FIG. 3 , and the fixing positions of the second fixing member 12 and the vibration source 2 are axisymmetric. In FIG. 4 , the fixing positions of the first fixing member 11 and the vibration source 2 , and the fixing positions of the second fixing member 12 and the vibration source 2 are center-symmetrical.

Example 4

On the other hand, this embodiment provides a vibration reduction method for reducing the vibration of a vibration source and avoiding resonance between the vibration source and other vibration sources. Specifically, the vibration reduction method includes the following steps:

1. A vibration damping device is provided, which comprises an elastic member.

Preferably, the damping device in this step is the damping device described in any one of the above-mentioned embodiments.

2. Set the elastic piece on the vibration source, and fix the two ends of the elastic piece with the vibration source.

In this step, the fitting method of the elastic member is shown in FIG. 1 , the two ends of the elastic member 13 are fixed to the vibration source 2 , and the middle part of the elastic member 13 is placed on the vibration source 2 . And ensure that the deformation direction of the elastic member 13 is consistent with the vibration direction of the vibration source 2 . Preferably, when the elastic member is fitted on the vibration source 2 , there is a gap between the elastic member 13 and the vibration source 2 .

3. When the vibration source vibrates, there will be a phase difference between the vibration of the elastic member and the vibration of the vibration source, which will have a damping effect on the vibration of the vibration source, so that the vibration of the vibration source will be weakened while vibrating at an unstable frequency.

The vibration damping method provided in this embodiment is designed using the hysteresis principle of the elastic element when it is forced to vibrate. By fixing the two ends of the elastic element to the vibration source, the elastic element will have a positive impact on the two vibration directions of the vibration source. Vibration can play a blocking role, so as to reduce the vibration and avoid the harmful driving force when the existing "buffering" vibration-absorbing elastic object recovers.

In addition, the vibration damping method of this embodiment can also be used to prevent the vibration source from resonating with other vibration sources. It is only necessary to use the vibration damping method of this embodiment to reduce the vibration of the vibration source and make it vibrate at an unstable frequency. This vibration source resonates with other vibration sources.

Example 5

On the other hand, this embodiment provides an air conditioner motor bracket. The air conditioner motor bracket includes an air conditioner motor bracket body and a vibration damping device. The vibration damping device is used to weaken the vibration of the air conditioner motor support body and prevent the air conditioner motor support body from resonating with the air conditioner motor.

Specifically, the damping device includes a first fixing part, a second fixing part and an elastic part. Wherein, one end of the elastic member is connected with the first fixing member, and the other end is connected with the second fixing member. The elastic part is sleeved on the air conditioner support body, and the first fixing part and the second fixing part are respectively fixed on the air conditioner motor support body.

When the body of the air conditioner motor bracket vibrates under the action of the fan, because the two ends of the elastic part in the vibration damping device are fixed to the body of the air conditioner motor bracket, the elastic part is forced to vibrate. Due to the properties of the elastic part itself, the elastic part is forced to vibrate There is a hysteresis in the vibration, and there is a phase difference with the vibration of the air conditioner motor support body, thereby hindering the vibration of the air conditioner motor support body in both vibration directions, achieving the purpose of weakening the vibration of the air conditioner motor support body, and making the air conditioner motor The bracket body vibrates at an unstable frequency, which avoids resonance between the air conditioner motor bracket and the air conditioner motor.

Since the vibration damping device provided by this embodiment can hinder the vibration of the air conditioner motor support body in both vibration directions, it avoids the harmful thrust of the existing "buffering" vibration damping elastic body when it recovers. In addition, the damping device provided in this embodiment uses an elastic member with disturbance properties as a damper, which is not rigidly connected with the air conditioner motor bracket body, and does not have a stable natural frequency, so that the connected whole will not vibrate with other The components generate resonance to achieve the function of protecting the air conditioner motor bracket body.

Preferably, the damping device is the damping device described in any one of Embodiments 1-3. Moreover, when the first fixing piece and the second fixing piece of the vibration damping device in this embodiment are insertion blocks, the air conditioner motor support body is respectively provided with insertion holes at the positions fixed with the first fixing piece and the second fixing piece; The insertion block is adapted to the insertion hole, so as to realize the fixed connection between the first fixing piece, the second fixing piece and the air conditioner motor support body.

In summary, the vibration damping device, vibration damping method and air conditioner motor bracket provided by the embodiments of the present invention use the hysteresis of the forced vibration of the elastic member, a certain phase difference with the vibration source connected to it, and a principle similar to interference to weaken The vibration of the vibration source avoids the hidden dangers or disadvantages of the existing "buffer type" vibration damping elastic objects and rigid damping blocks.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model are all valid. Still belong to the scope of the technical solution of the utility model.

Claims (9)

1. a vibration absorber, is characterized in that, comprising:

First fixture;

Second fixture;

Elastic component, one end of described elastic component is connected with described first fixture, and the other end is connected with described second fixture;

Wherein, described first fixture, the second fixture are for being fixed on vibration source; Described elastic component is for being sleeved on described vibration source;

When vibration source vibrates, the forced vibration of described elastic component and the vibration of vibration source produce phase difference, and produce damping action to the vibration of vibration source.

2. vibration absorber according to claim 1, is characterized in that, described elastic component is spring.

3. vibration absorber according to claim 1, is characterized in that, described first fixture, the second fixture are insertion block, and one end and the described elastic component of described insertion block are fixed, and the other end is for inserting inserting in the hole that vibration source is offered.

4. vibration absorber according to claim 1, is characterized in that, described first fixture, the second fixture are fixed block, and described fixed block is fixed on described vibration source by securing member.

5. vibration absorber according to claim 1, is characterized in that, the fixed position of the fixed position of described first fixture and vibration source, the second fixture and vibration source is axial symmetry relation or Central Symmetry relation.

6. vibration absorber according to claim 1, is characterized in that, described first fixture, elastic component and the second fixture are integral type structure.

7. vibration absorber according to claim 1, is characterized in that, there is gap between described elastic component and vibration source.

8. an air conditioner motor support, is characterized in that, described air conditioner motor support comprises:

Air conditioner motor rack body;

Vibration absorber as described in any one of claim 1-7;

Wherein, described first fixture, the second fixture are separately fixed on described air conditioner motor rack body; Described elastic component is sleeved on described air conditioner motor rack body.

9. air conditioner motor support according to claim 8, it is characterized in that, when described first fixture, the second fixture are for inserting block, described air conditioner motor rack body is respectively arranged with patchhole in the position fixing with the first fixture, the second fixture;

Described insertion block and patchhole suitable, to realize the first fixture, the second fixture is fixedly connected with air conditioner motor rack body.