Compressor assembly and air conditioner

Abstract

The present invention provides a compressor assembly and an air conditioner, the compressor assembly comprising: a first compressor and a second compressor, the first compressor comprising a first housing (1) and a first motor, the second compressor comprising a second housing (2) and a second motor, the first motor being arranged inside the first housing (1), the second motor being arranged inside the second housing (2), and the first housing (1) and the second housing (2) being connected directly and / or indirectly, and the rotation direction of the first motor is the same as the rotation direction of the second motor. The present invention can make the radial and tangential vibrations generated by the two compressors in opposite directions (opposite amplitude directions), thereby effectively offsetting their respective vibrations and effectively playing a vibration reduction role on the compressor body; and by arranging a liquid distributor and fixing it to the ribs, the liquid distributor can also play a vibration reduction role.

Description

Technical Field

[0001] The invention belongs to the technical field of compressors, and in particular relates to a compressor assembly and an air conditioner. Background Art

[0002] Existing compressors are frequently complained about vibration problems, and large vibrations of the compressors lead to pipeline strain problems. From a vibration perspective, the vibration of a single compressor can be divided into three directions (whirling vibration, radial vibration, and axial vibration). This is because at a certain moment or at a certain phase angle of the rotor, the resultant moment of the compressor in all directions is not zero, causing vibration. This vibration is periodic. The existing patent CN108999783A uses two compressors, and their mounting feet are arranged separately, but it can only solve the problem of distributor vibration, and cannot completely reduce the vibration of the compressor body; and it requires a larger installation space.

[0003] Since the compressor in the prior art has large vibrations, which may lead to pipeline strain problems, and the existing vibration reduction structure requires a large installation space and has poor vibration reduction performance on the compressor body and other technical problems, the present invention studies and designs a compressor assembly and an air conditioner. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect of large vibration of the compressor in the prior art, thereby providing a compressor assembly and an air conditioner.

[0005] The present invention provides a compressor assembly, comprising:

[0006] A first compressor and a second compressor, the first compressor includes a first shell and a first motor, the second compressor includes a second shell and a second motor, the first motor is arranged inside the first shell, the second motor is arranged inside the second shell, and the first shell and the second shell are connected directly and / or indirectly, and the rotation direction of the first motor is the same as the rotation direction of the second motor.

[0007] Preferably,

[0008] The first shell and the second shell have the same structure, and / or the first motor and the second motor have the same structure.

[0009] Preferably,

[0010] The first shell and the second shell are fitted and fixedly connected; and / or, the first compressor and the second compressor are both rotor compressors.

[0011] Preferably,

[0012] It also includes a first rib, a portion of which is fixedly connected to the first shell and another portion is fixedly connected to the second shell; and / or, it also includes a second rib, a portion of which is fixedly connected to the first shell and another portion is fixedly connected to the second shell.

[0013] Preferably,

[0014] It also includes a first liquid distributor, which is also fixedly connected to the first rib and communicates with the interior of the first compressor;

[0015] And / or, it also includes a second liquid distributor, which is also fixedly connected to the second rib and communicates with the interior of the second compressor.

[0016] Preferably,

[0017] The first rib is made of metal material, and / or the second rib is made of metal material.

[0018] Preferably,

[0019] The first shell is a cylindrical structure, and the portion where the first rib matches the first shell is an arc segment; and / or the second shell is a cylindrical structure, and the portion where the first rib matches the second shell is also an arc segment.

[0020] Preferably,

[0021] The first shell has a cylindrical structure, and the portion where the second rib matches the first shell is an arc segment; and / or the second shell has a cylindrical structure, and the portion where the second rib matches the second shell is also an arc segment.

[0022] Preferably,

[0023] The first liquid distributor has a cylindrical structure, and the portion where the first rib connects to the first liquid distributor is also an arc segment, and the arc segment where the first rib connects to the first liquid distributor is located between the first shell and the second shell; and / or, the second liquid distributor has a cylindrical structure, and the portion where the second rib connects to the second liquid distributor is also an arc segment, and the arc segment where the second rib connects to the second liquid distributor is located between the first shell and the second shell.

[0024] Preferably,

[0025] It also includes a third liquid distributor, which is fixedly connected to the first rib and / or the second rib, and is communicated with the interior of the first compressor, and is also communicated with the interior of the second compressor.

[0026] The present invention also provides an air conditioner, comprising the compressor assembly as described in any of the preceding items.

[0027] A compressor assembly and an air conditioner provided by the present invention have the following beneficial effects:

[0028] The present invention connects the shells of two compressors directly and / or indirectly, and the rotation directions of the motors of the two compressors are the same, so that the radial and tangential vibrations generated by the two compressors are opposite in direction (opposite in amplitude direction), thereby effectively offsetting the vibrations of the two compressors, and effectively playing a vibration reduction role on the compressor body; and by providing more than one liquid distributor and fixing them to the ribs, it can also play a vibration reduction role and effect on the liquid distributor. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a top view of the structure of the first compressor assembly in the prior art;

[0030] Figure 2 This is a top view of the second compressor assembly in the prior art.

[0031] Figure 3 It is a schematic diagram of the top structure of the compressor assembly of the present invention.

[0032] The reference numerals in the figure are as follows:

[0033] 1. First shell; 2. Second shell; 3. First rib; 4. Second rib; 5. First dispenser; 6. Second dispenser. DETAILED DESCRIPTION

[0034] like Figure 3 As shown, the present invention provides a compressor assembly, which includes:

[0035] A first compressor and a second compressor, the first compressor includes a first shell 1 and a first motor, the second compressor includes a second shell 2 and a second motor, the first motor is arranged inside the first shell 1, the second motor is arranged inside the second shell 2, and the first shell 1 and the second shell 2 are connected directly and / or indirectly, and the rotation direction of the first motor is the same as the rotation direction of the second motor.

[0036] The present invention connects the shells of two compressors directly and / or indirectly, and the rotation directions of the motors of the two compressors are the same, so that the radial and tangential vibrations generated by the two compressors are opposite in direction (opposite in amplitude direction), thereby effectively offsetting the vibrations of the two compressors, and effectively playing a vibration reduction role on the compressor body. The present invention has a simple structure, strong versatility, and occupies a small space.

[0037] The vibration of the shell and the liquid distributor of a compressor can be divided into cyclotron, radial and axial vibration. Two identical compressors are connected together to exchange heat in the same system, but they can reduce vibration (cyclotron and radial vibration) with each other. The axial directions of the two compressors are parallel, and the bodies are placed close to each other. Two identical metal strips are used for welding connection. Each compressor only needs to arrange two legs. The shell and liquid distributor of the first compressor, and the shell and liquid distributor of the second compressor are respectively welded together with two symmetrical strips, which are symmetrical from front to back and from left to right. The strip is in the shape of an inner concave arc, so that the space of the liquid distributor is compact after welding. The two compressors are of the same scheme and size inside and outside, with the same motor direction and the same motor parameters. The terminals of the two compressors must be connected in parallel with wires to ensure that they are driven by the same power supply at the same time. When vibration occurs, because the phase angles of the vibrations of the two compressors are the same and the amplitude directions are opposite, the vibration is reduced. Theoretically, the vibration is reduced to 0, and the rigid body modal fixed frequency of the compressor and the liquid distributor is relatively high, which is not easy to resonate with the pipeline. The vibration of the compressor is extremely small, so the pipeline vibration of the air conditioning system is small.

[0038] Preferably,

[0039] The first housing 1 and the second housing 2 have the same structure (including shape, size, etc.), and / or the first motor and the second motor have the same structure and parameters (including shape, size, etc.). This is the preferred relationship between the housings and motors of the first and second compressors of the present invention, that is, it is best to select housings with exactly the same structure and motors with exactly the same structure, so that the amplitude effects (including radial and tangential) generated by each other are the same in magnitude and opposite in direction, which can completely offset the vibration and reduce it to 0, and the vibration reduction effect is the best.

[0040] Preferably,

[0041] The first shell 1 and the second shell 2 are fitted and fixed (preferably welded); and / or, the first compressor and the second compressor are both rotary compressors. This is a preferred direct connection structure between the two shells of the present invention. By fitting the two together and fixing them, see Figure 3 , which can make the two compressors offset or reduce their opposite amplitudes at the jointed part, effectively utilizing the existing structure to reduce the vibration of the two compressors, and the preferred structural form is that both compressors are rotor compressors (rotary compressors).

[0042] Preferably,

[0043] It also includes a first rib 3, a portion of which is fixedly connected (preferably welded) to the first shell 1, and another portion of which is fixedly connected (preferably welded) to the second shell 2; and / or, it also includes a second rib 4, a portion of which is fixedly connected (preferably welded) to the first shell 1, and another portion of which is fixedly connected (preferably welded) to the second shell 2. By providing the first rib and the second rib, an indirect connection can be formed between the first and second shells, so that the ribs can achieve the effect of mutually reducing the vibration of the two compressors.

[0044] The two compressors are symmetrically welded together using long brackets. Since the motors are exactly the same, have the same direction of rotation, and are started at the same time, the motor rotors have the same rotation angle at any time, that is, the same phase angle, so the vibration values ​​of the two compressors are basically the same. However, after being connected together in this way, their amplitude directions are always opposite, so the vibrations are offset. (Including tangential and radial vibrations, excluding axial vibrations of the compressor)

[0045] Preferably,

[0046] It also includes a first liquid distributor 5, which is also fixedly connected to the first rib 3 and communicates with the interior of the first compressor;

[0047] And / or, it further includes a second liquid distributor 6, which is also fixedly connected to the second rib 4, and the second liquid distributor 6 is communicated with the interior of the second compressor.

[0048] The present invention also sets up a first and a second liquid distributor, and fixes them respectively to the first and second ribs, and can also achieve a vibration reduction effect on the two liquid distributors through two rotating first and second compressors. Because the directions of the amplitudes of the two compressors acting on the two liquid distributors are also opposite, this means can also achieve a vibration reduction effect on the liquid distributors.

[0049] Preferably,

[0050] The first rib 3 is made of metal, and / or the second rib 4 is made of metal. These are the preferred materials for the two ribs of the present invention. The metal ribs can achieve the functions of connection and vibration transmission, thereby achieving the effect of vibration reduction.

[0051] Preferably,

[0052] The first shell 1 is a cylindrical structure, and the first rib 3 and the first shell 1 are matched and connected to each other in an arc segment; and / or the second shell 2 is a cylindrical structure, and the first rib 3 and the second shell 2 are matched and connected to each other in an arc segment. This is the preferred shape and structural form of the two shells of the present invention. The arc segment and the ribs and the matched and connected parts are also set as arc segments, which can make the two connected to form a tight connection, increase the connection area, and thus improve the vibration reduction effect.

[0053] Preferably,

[0054] The first shell 1 is a cylindrical structure, and the part where the second rib 4 matches and connects with the first shell 1 is an arc segment; and / or the second shell 2 is a cylindrical structure, and the part where the second rib 4 matches and connects with the second shell 2 is also an arc segment. This is the preferred shape and structural form of the two shells of the present invention. The arc segment and the part where the rib matches and connects with the first shell 1 are also arc segments, which can make the two closely connected, increase the connection area, and thus improve the vibration reduction effect.

[0055] Preferably,

[0056] The first liquid distributor 5 is a cylindrical structure, and the part where the first rib 3 connects with the first liquid distributor 5 is also an arc segment, and the arc segment where the first rib connects with the first liquid distributor is located between the first shell and the second shell; and / or, the second liquid distributor 6 is a cylindrical structure, and the part where the second rib 4 matches with the second liquid distributor 6 is also an arc segment, and the arc segment where the second rib connects with the second liquid distributor is located between the first shell and the second shell. This is the preferred structural form and preferred setting position of the liquid distributor of the present invention, that is, the liquid distributor is set at a position between the two shells, which can use the opposite amplitudes of the two compressors to offset the amplitude of the liquid distributor, that is, reduce vibration, thereby improving the vibration reduction effect, and the first rib and the first liquid distributor The part that connects is concave in the direction between the first and second shells enables the liquid distributor to be set at the rib concave position, thereby effectively saving and utilizing space, so that the volume is reduced or will not be further increased.

[0057] Preferably,

[0058] The third liquid distributor (not shown) is also included, and the third liquid distributor is fixedly connected to the first rib 3 and / or the second rib 4, and the third liquid distributor is connected to the interior of the first compressor, and the third liquid distributor is also connected to the interior of the second compressor. This is an alternative embodiment of the present invention, that is, the third liquid distributor is connected to the interior of the first and second compressors respectively, that is, the two compressors share one liquid distributor, which can save the cost of one liquid distributor, and can also reduce vibration of the third liquid distributor, thereby improving the vibration reduction effect.

[0059] The present invention also provides an air conditioner, comprising the compressor assembly described in any of the preceding items. The present invention connects the shells of two compressors together directly and / or indirectly, and the rotation directions of the motors of the two compressors are the same, so that the radial and tangential vibrations generated by the two compressors are opposite in direction (opposite in amplitude direction), thereby effectively canceling out the vibrations of the two compressors, and effectively playing a vibration reduction role on the compressor body, and the structure is simple, the versatility is strong, and the space occupied is small.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. A compressor assembly, characterized in that: include: A first compressor and a second compressor, wherein the first compressor comprises a first housing (1) and a first motor, and the second compressor comprises a second housing (2) and a second motor, the first motor being arranged inside the first housing (1), and the second motor being arranged inside the second housing (2), and the first housing (1) and the second housing (2) being directly connected, and the rotation direction of the first motor is the same as the rotation direction of the second motor, so that the radial and tangential vibrations generated by the first compressor and the second compressor are in opposite directions; the central axes of the first housing (1) and the second housing (2) are arranged in a vertical direction, the first housing (1) and the second housing (2) are fitted and fixedly connected, and the first housing (1) and the second housing (2) are connected in a horizontal direction; The compressor further comprises a first rib (3), wherein a portion of the first rib (3) is fixedly connected to the first shell (1) and another portion of the first rib (3) is fixedly connected to the second shell (2); a second rib (4), wherein a portion of the second rib (4) is fixedly connected to the first shell (1) and another portion of the second shell (2); a first liquid distributor (5), wherein the first liquid distributor (5) is also fixedly connected to the first rib (3), and the first liquid distributor (5) is in communication with the interior of the first compressor; and a second liquid distributor (6), wherein the second liquid distributor (6) is also fixedly connected to the second rib (4), and the second liquid distributor (6) is in communication with the interior of the second compressor; The first housing (1) and the second housing (2) have the same structure, and / or the first motor and the second motor have the same structure and parameters; The first compressor and the second compressor are both rotary compressors.

2. The compressor assembly according to claim 1, characterized in that: The first rib (3) is made of metal material, and / or the second rib (4) is made of metal material.

3. The compressor assembly according to any one of claims 1 to 2, characterized in that: The first shell (1) is a cylindrical structure, and the portion where the first rib (3) matches and connects with the first shell (1) is an arc segment; and / or the second shell (2) is a cylindrical structure, and the portion where the first rib (3) matches and connects with the second shell (2) is also an arc segment.

4. The compressor assembly according to any one of claims 1-2, characterized in that: The first shell (1) is a cylindrical structure, and the portion where the second rib (4) matches and connects with the first shell (1) is an arc segment; and / or the second shell (2) is a cylindrical structure, and the portion where the second rib (4) matches and connects with the second shell (2) is also an arc segment.

5. The compressor assembly according to claim 1, characterized in that: The first liquid distributor (5) is a cylindrical structure, and the portion where the first rib (3) connects to the first liquid distributor (5) is an arc segment, and the arc segment where the first rib connects to the first liquid distributor is located between the first shell and the second shell; and / or the second liquid distributor (6) is a cylindrical structure, and the portion where the second rib (4) matches to the second liquid distributor (6) is also an arc segment, and the arc segment where the second rib connects to the second liquid distributor is located between the first shell and the second shell.

6. The compressor assembly according to claim 1, characterized in that: It also includes a third liquid distributor, the third liquid distributor is fixedly connected to the first rib (3) and / or the second rib (4), and the third liquid distributor is connected to the interior of the first compressor, and the third liquid distributor is also connected to the interior of the second compressor.

7. An air conditioner, characterized in that: A compressor assembly comprising the compressor assembly of any one of claims 1-6.

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