CN106766036B

CN106766036B - Air conditioning unit

Info

Publication number: CN106766036B
Application number: CN201611196482.8A
Authority: CN
Inventors: 邹先平; 周孝华; 卓明胜
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2016-12-22
Filing date: 2016-12-22
Publication date: 2022-07-12
Anticipated expiration: 2036-12-22
Also published as: CN106766036A

Abstract

The invention provides an air conditioning unit which comprises a cooperative fixing structure, wherein the cooperative fixing structure is used for mutually fixing a plurality of parts, the cooperative fixing structure comprises a plurality of fixing parts, the fixing parts are in rigid connection, each part is matched with one fixing part in the fixing parts, and the parts are fixed relative to each other through the cooperative fixing structure. The cooperative fixing structure can cooperatively and fixedly connect a plurality of parts together through the plurality of fixing parts, so that the parts can be mutually constrained, the vibration or swing of a single part can be effectively inhibited, and the vibration of the whole system can be reduced.

Description

Air conditioning unit

Technical Field

The invention relates to the technical field of air conditioners, in particular to an air conditioning unit.

Background

Vibration damping of air conditioning units has been appreciated by those skilled in the art. Except for the compressor, a four-way valve in the air conditioning unit is often a main vibration source, if the four-way valve is not fixed firmly enough, vibration or swing is easily generated in the reversing process, and because the four-way valve is a hub connected with a pipeline, the vibration or swing of the four-way valve can cause the vibration of a unit copper pipe, the four-way valve needs to be effectively fixed.

Some large commercial air conditioning units often have a plurality of systems and a plurality of four-way valves, for example, as shown in fig. 1, these four-way valves 2 are usually suspended in the middle of the bottom layer of the unit, and are suspended and fixed only by the bottom support structure 1, and no wall surface around can be used as a support structure, which results in the unreliable fixation of these four-way valves, and therefore it is very easy to swing and vibrate, thus bringing about a great influence on the vibration of the copper pipes of the unit.

Therefore, finding a proper fixing scheme for a plurality of four-way valves in the air conditioning unit is one of the technical problems to be solved urgently in the field.

Disclosure of Invention

In view of the above-described situation, a primary object of the present invention is to provide an air conditioning unit that can effectively solve the problem of fixing a plurality of four-way valves without using a wall surface as a support structure around the air conditioning unit.

The above purpose is realized by the following technical scheme:

an air conditioning unit comprises a cooperative fixing structure, wherein the cooperative fixing structure is used for mutually fixing a plurality of parts in the air conditioning unit, the parts are four-way valves, the cooperative fixing structure comprises a plurality of fixing parts, the fixing parts are in rigid connection, each of the parts is matched with one of the fixing parts, and the parts are fixed relative to each other through the cooperative fixing structure;

the plurality of fixing parts comprise a plurality of clamping components which comprise a first component and a second component, wherein in an assembling state, a clamping space is formed between the first component and the second component so as to clamp the parts to be fixed;

the first member is formed as an elongated member, the second member is provided at a position near an end of the first member, and the holding space is formed at a position near an end of the first member;

the first members are more than three, the first members are arranged in an end-to-end mode, the ends of the two first members at the end-to-end position are close to each other, the second member is arranged at the end-to-end position of the first members, so that a clamping space is formed between the second member and the mutually close ends of the two first members to clamp the parts to be fixed, three clamping contact points exist in the clamping space, and a closed frame structure is formed after the first members and the second members are assembled;

the first member comprises a body part and bent parts positioned at two ends of the body part, and the second member comprises a first arm and a second arm which are at an angle with each other; in an assembled state, the two adjacent first members are arranged in a mode that bent parts are butted, and the first arm and the second arm of the second member are respectively fixed to the body parts of the two adjacent first members so as to form the clamping space between the second member and the two butted bent parts;

the cooperative securing structure further comprises a plurality of fasteners by which the second member is secured to the two first members, respectively; at least one of the first member and the second member includes an elongated aperture through which the fastener passes.

Preferably, the angle between the first and second arms of the second member is equal to the angle formed by two of the first members when they are arranged.

Preferably, the clamping member is a plastic member.

The cooperative fixing structure can cooperatively and fixedly connect a plurality of parts together through the plurality of fixing parts, so that the parts can be mutually constrained, the vibration or swing of a single part can be effectively inhibited, and the vibration of the whole system can be reduced. In particular, the cooperative fixing structure of the invention can be used for fixing a plurality of four-way valves in an air conditioning unit, so that under the condition that the periphery of the plurality of four-way valves is lack of installation wall surfaces as a supporting structure, the synchronous fixing of the plurality of four-way valves can be conveniently realized, the vibration of the four-way valves can be reduced, and the vibration of the pipeline of the whole air conditioning unit system can be further reduced.

Drawings

Preferred embodiments of the cooperative securing structure according to the present invention will be described below with reference to the accompanying drawings. In the figure:

FIG. 1 is a schematic diagram of a plurality of four-way valves in an air conditioning unit according to the prior art;

FIG. 2 is a schematic view of a cooperative securing structure of a preferred embodiment of the present invention in securing a plurality of four-way valves as shown in FIG. 1;

FIG. 3 is a schematic view of an assembled state of a cooperative securing structure of a preferred embodiment of the present invention;

FIG. 4 is a schematic view of an assembled state of a cooperative securing structure in accordance with another preferred embodiment of the present invention;

FIG. 5 is a schematic exterior view of a first member of the embodiment of FIG. 3;

FIG. 6 is a schematic exterior view of a second member of the embodiment of FIG. 3;

FIG. 7 is a side view of the second member of FIG. 6;

FIG. 8 is a schematic top view of the embodiment of FIG. 3;

FIG. 9A is an enlarged partial view of a state of area A of FIG. 8, showing a minimum grip size;

FIG. 9B is an enlarged partial view of another state of area A in FIG. 8, showing a maximum grip size;

FIG. 10 is a graph showing a simulation of the amount of vibration of the four-way valve when the fixing method of FIG. 1 is employed;

fig. 11 is a diagram showing a simulation of the amount of vibration of the four-way valve when the fixing method of fig. 2 is employed.

Detailed Description

According to the first aspect of the invention, a cooperative fixing structure is provided for fixing the multiple four-way valves in a large commercial air conditioning unit. The cooperative fixing structure can fixedly connect a plurality of four-way valves together, but the application of the cooperative fixing structure is not limited to fixedly connecting a plurality of four-way valves in an air conditioning unit, and the cooperative fixing structure can be used for fixedly connecting a plurality of parts without connection relation with each other in other occasions.

The components having no connection relation with each other means that the components do not need to be connected to each other when performing their respective functions, for example, as in the case of the four-way valves mentioned above, which belong to different systems and are independent in function.

Specifically, as shown in fig. 2, the cooperative fixing structure 3 of the present invention includes a plurality of fixing portions, the fixing portions are rigidly connected to each other, each of the plurality of components (such as the four-way valve 2) is respectively matched with one of the fixing portions, and the plurality of components are fixed to each other by the cooperative fixing structure.

Due to the rigid connection between the fixing parts, when each part is fixed between the corresponding fixing parts, the cooperative fixing among the parts is realized, and any part cannot freely change the spatial position, such as deflection or displacement, but is always limited by other parts.

Therefore, the cooperative fixing structure of the invention utilizes the plurality of fixing parts to cooperatively and fixedly connect the plurality of parts together, so that the parts can be mutually constrained, thereby effectively inhibiting the vibration or swing of a single part and further reducing the vibration of the whole system.

When the cooperative fixing structure of the present invention is used for fixing the four-way valves, for example, as shown in fig. 2, the head connection pipes of the respective four-way valves 2 are respectively fixed by the fixing portions, so that the respective four-way valves 2 are firmly fixed together with the bottom support structures 1 of the respective four-way valves 2, thereby greatly reducing vibration or swing of the respective four-way valves 2.

Preferably, the fixing portion in the present invention may include a plurality of clamping members, and each of the parts to be fixed (e.g., the four-way valve 2) may be clamped by two or more clamping members. Through setting up the clamping member, can guarantee to fix firm reliable to the position error between each spare part is adapted to easily, reduces assembly stress.

In particular, in order to achieve a rigid connection between a plurality of fixed parts, a number of different ways may be taken:

for example, at least one clamping member may be shared between two or more fixing portions. That is, the respective clamping members simultaneously serve to form two or more fixing portions, clamping two or more parts, thereby maintaining relative fixation between the two or more parts. This is easier to achieve if the clamping member has a suitable length, for example, both ends of the clamping member can be used to form two fastening portions, respectively, for clamping two components.

For another example, the clamping members of the two fixing portions are independent of each other, but may be fixedly connected together by a respective one of the clamping members, or by a separate intermediate member, thereby achieving a similar effect to the aforementioned manner of sharing a single clamping member.

Preferably, as shown in fig. 3 and 4, the plurality of clamping members may include a first member 31 (or 31 ') and a second member 32 (or 32'), wherein, in an assembled state, a clamping space is formed between the first member 31 (or 31 ') and the second member 32 (or 32') to clamp the parts to be fixed. That is, each fixing portion may employ a first member having the same or similar specification and a second member having the same or similar specification, thereby simplifying the assembly process.

Preferably, the first member 31 (or 31 ') is formed as an elongated member, and the second member 32 (or 32') is disposed at a position near the end of the first member 31 (or 31 '), so that the clamping space is formed at a position near the end of the first member 31 (or 31').

By forming the clamping space at the end position of the elongated first member, a rigid connection between the adjacent fixing portions can be easily achieved with the first member.

Preferably, there are a plurality (e.g. three or more), such as four as shown in the figures, the plurality of first members are arranged in an end-to-end manner, the second members are arranged at the end-to-end of the first members, and the first members and the second members are assembled to form a closed frame structure.

Obviously, the closed frame structure has better effect on improving the fixed connection strength of each part.

However, when the arrangement of the plurality of components is not suitable for the closed frame structure, the components can be fixed to the remote supporting wall surface by means of an additional member (such as the first member), so that the fixing reliability is enhanced.

Specifically, as shown in fig. 3 and 4, the cooperative fixing structure provided by the present invention includes a plurality of first members 31 (or 31 ') and a plurality of second members 32 (or 32 '), wherein, in an assembled state, in order to form one clamping portion thereof, two of the first members 31 (or 31 ') may be angularly arranged, and ends of the two first members 31 (or 31 ') are close to each other, and the second members 32 (or 32 ') are fixed to the two first members 31 (or 31 ') near the ends of the two first members 31 (or 31 ') close to each other, such that the clamping spaces are formed between the second members 32 (or 32 ') and the ends of the two first members 31 (or 31 ') close to each other, to clamp the parts to be fixed.

Preferably, in the embodiment shown in fig. 3, the first member 31 includes a body portion 312 and bent portions 311 at two ends of the body portion 312, such as an arch structure as shown in the figure, and particularly see fig. 5; the second member 32 includes a first arm 321 and a second arm 322 that are angled with respect to each other, such as a right angle frame structure as shown, and as can be seen in particular in fig. 6. In the assembled state, the two adjacent first members 31 are arranged with one of the bent portions 311 butted therebetween, and the first arm 321 and the second arm 322 of the second member 32 are respectively fixed to the body portions 312 of the two adjacent first members 31, so that the clamping space is formed between the second member 32 and the two butted bent portions 311.

In this embodiment, the second member 32 is located outside the frame structure formed by the plurality of first members 31, or the second member 32 is located outside the included angle between two adjacent first members 31, and both arms of the second member and the bent portions of the two first members participate in the clamping process.

Preferably, in the embodiment shown in fig. 4, the second member 32 'comprises a first arm 321' and a second arm 322 'angled with respect to each other, and an intermediate portion 323' connected between the first arm 321 'and the second arm 322', for example in an arcuate configuration as shown. The first member 31' may then comprise only a body portion, such as a straight bar structure as shown. In the assembled state, an angle is formed between the mutually adjacent end portions of the two adjacent first members 31 ', and the first arm 321 ' and the second arm 322 ' of the second member 32 ' are respectively fixed to the two adjacent first members 31 ' so as to form the clamping space between the middle portion 323 ' of the second member 32 and the respective end portions of the two first members 31 '.

In this embodiment, the second member 32 'is located inside the frame structure formed by the plurality of first members 31', or the second member 32 'is located inside the angle between two adjacent first members 31', and the middle portion of the second member, and the end portions of the two first members participate in the clamping process.

As shown in fig. 3 and 4, in the two embodiments, there are three clamping contact points in each clamping space, that is, a three-point contact type clamping structure is formed by using the principle of three-surface clamping, so that the clamping is more reliable and stable.

Meanwhile, a triangular structure is formed between the first member and the second member locally, so that the firmness of the cooperative fixing structure can be ensured by utilizing the triangular stability principle.

In particular, in the illustrated embodiment, when four components are fixedly connected, the cooperative fastening structure of the present invention may form an octagonal structure, which can effectively avoid the swing instability of a quadrilateral.

Preferably, in the embodiment of fig. 3 and 4, the angle between the first arm 321, 321 'and the second arm 322, 322' of the second member 32, 32 'is equal to the angle formed by the body part after the two first members 31, 31' are arranged, so that after the clamping and fixing are completed, the first member can form a good fit with the first arm and the second arm of the second member, and further, the clamping is ensured to be reliable and stable.

In order to fix the first member and the second member, fastening structures, such as a snap structure, which are engaged with each other, may be provided on the first member and the second member, respectively, for example, integrally.

Preferably, the cooperative fastening structure of the present invention may further include a plurality of fasteners, and the second members 32, 32 'are respectively fastened to two adjacent first members 31, 31' by the fasteners. For example, as shown in fig. 3 and 4, the fastener may include a bolt 33 and a nut 34, so that a stable and firm fastening action may be formed between the first member and the second member.

Preferably, at least one of the first member 31, 31 'and the second member 32, 32' comprises an elongated hole through which the fastener passes. As shown, for example, in fig. 3-4, 5-6, each arm of the second member 32, 32' is provided with an elongated aperture. It is easily conceivable that the elongated hole may also be provided on the first member 31, 31'. The presence of the elongated holes allows the relative position between the first 31, 31 'and second 32, 32' members to be easily adjusted to facilitate the clamping of different sized components.

For example, as shown in fig. 8, the cooperative securing structure fixedly connects four components (schematically represented by circles in the clamping space) together. The enlarged view of area a in fig. 8 is shown in fig. 9A, where the size (e.g., diameter) of the clamped component is the smallest in the case where both the first arm and the second arm of the second member are attached to the first member, which can be denoted as Dmin. As shown in fig. 9B, when the second member is moved relative to the first member such that the fastener contacts one end of the elongated hole, the size (e.g., diameter) of the component being clamped is at a maximum, which may be designated Dmax.

Taking the embodiment shown in fig. 8 as an example, when the cooperative fixing structure forms a square frame structure, that is, when 4 parts are fixedly connected together, the included angle a (shown in fig. 5) between the bending portion 311 of the first member 31 and the main body portion 312 is 45 °, and the length B of the bending portion 311 is preferably set to be equal to 45 °

(ii) a If the length of the elongated hole is C (shown in FIG. 7), then

(ii) a In the case where the screw length of the bolt 33 is greater than 40 mm, the diameter of the component to be clamped is in the range of 20 mm to 36 mm in the present embodiment.

Preferably, the clamping member, such as the first member and/or the second member, in the present invention may be a plastic member, preferably an ABS material. The plastic component has the characteristics of light weight, difficult surface damage of parts, larger internal damping, easy molding, low cost and the like. Each clamping member may preferably take a rectangular or square cross-sectional shape. The body portion of the first member may have an elongated shape, and the specific length thereof depends on the distance between two adjacent components to be clamped.

The cooperative fixing structure can fixedly connect a plurality of parts (such as four-way valves) together, and can realize the limitation of the translational degree of freedom and the rotational degree of freedom in a horizontal plane. When the fixing structure is used for fixing a plurality of four-way valves, the cooperative fixing structure utilizes the self-locking characteristic among the four-way valves, so that the fixing structure is not required to be arranged on a supporting wall surface, and the four-way valves are not limited by space. The cooperative fixing structure has the characteristics of simple structure, and simple and convenient production process and assembly.

On the basis of the above-described work, according to a second aspect of the present invention, there is provided an air conditioning unit, such as a large commercial air conditioning unit, comprising a plurality of four-way valves for a plurality of systems, respectively, wherein the plurality of four-way valves are fixedly connected together by the cooperative fixing structure of the present invention as described above. The air conditioning unit comprises four-way valves, for example, the four-way valves are arranged in a vertically fixed mode, and no supporting wall surface is available around the upper portion of each four-way valve. After the cooperative fixing structure is adopted, the four-way valves can be cooperatively fixed together to be connected into a whole, so that the four-way valves can be mutually restricted, the swinging and the vibration of a single four-way valve are reduced, the vibration and the displacement of a connecting pipeline are further reduced, and the service life of a unit is prolonged.

Taking the embodiment shown in fig. 3 as an example, in a specific use, two bolts 33 may be threaded through two ends of the first member 31, the inner right-angle surface of the second member 32 abuts against the four-way valve head connection pipe, and the two bolts 33 on the first member 31 are connected by nuts 34; when all the four second members 32 are installed, the four-way valves can be synchronously and cooperatively fixed.

As shown in fig. 10 and 11, when the cooperative fixing structure of the present invention is not used for fixing, the maximum value of the vibration displacement of the four-way valve reaches 0.25 mm or more (fig. 10), and when the cooperative fixing structure of the present invention is used for fixing, the maximum value of the vibration displacement of the four-way valve is reduced to 0.12 mm (fig. 11), so that the cooperative fixing structure of the present invention can reduce the vibration by 52%, thereby having great significance for improving the service life and performance of the air conditioning unit.

Those skilled in the art will readily appreciate that the above-described preferred embodiments may be freely combined, superimposed, without conflict.

It will be understood that the embodiments described above are illustrative only and not restrictive, and that various obvious and equivalent modifications and substitutions for details described herein may be made by those skilled in the art without departing from the basic principles of the invention.

Claims

1. An air conditioning unit comprises a cooperative fixing structure, wherein the cooperative fixing structure is used for mutually fixing a plurality of parts in the air conditioning unit, and the parts are four-way valves;

the plurality of fixing parts comprise a plurality of clamping components, the plurality of clamping components comprise a first component and a second component, wherein in an assembling state, a clamping space is formed between the first component and the second component so as to clamp the parts to be fixed;

2. An air conditioning assembly according to claim 1, wherein the angle between the first and second arms of the second member is equal to the angle formed by two of the first members when they are arranged.

3. Air conditioning assembly according to claim 1 or 2, wherein the clamping member is a plastic member.