CN116221065A

CN116221065A - Compressor power component and compressor with same

Info

Publication number: CN116221065A
Application number: CN202310507460.2A
Authority: CN
Inventors: 李日环; 陈海燕; 铁鹏; 程哲; 巩香红; 方涛; 乔扬; 顾正阳; 刘雅丽
Original assignee: Runa Smart Equipment Co Ltd
Current assignee: Runa Smart Equipment Co Ltd
Priority date: 2023-05-08
Filing date: 2023-05-08
Publication date: 2023-06-06
Anticipated expiration: 2043-05-08
Also published as: CN116221065B

Abstract

The invention discloses a compressor power assembly and a compressor with the same, wherein the compressor power assembly comprises: a housing; the coil assembly comprises a plurality of sub-coils, and the plurality of sub-coils are arranged at intervals along the axial direction of the shell; a permanent magnet, one of the coil block and the permanent magnet being provided in the housing and the other being provided in the housing so as to be movable in an axial direction of the housing, the coil block having a protruding portion that protrudes from the permanent magnet in the axial direction of the housing and a superposed portion that is superposed with the permanent magnet in the axial direction of the housing; an energy cutoff mechanism for controlling the cutoff of the sub-coil energy of the extension. The compressor power assembly provided by the embodiment of the invention has the advantages of high operation efficiency and the like.

Description

Compressor power component and compressor with same

Technical Field

The invention relates to the technical field of compression equipment, in particular to a compressor power assembly and a compressor with the compressor power assembly.

Background

The overlapping part of the coil and the permanent magnet of the linear compressor in the axial direction forms the effective length of a coil winding, and the effective length is positively correlated with the driving force of the compressor.

In the related art, in order to ensure the driving force, a power assembly of a compressor such as a linear compressor needs to ensure that a coil has a sufficient axial length, and when current flows through a coil winding, the coil winding generates heat due to the resistance of the coil winding itself to cause loss, so that the heat of the power assembly of the compressor affects the operation efficiency.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a compressor power assembly which has the advantages of high operation efficiency and the like.

The invention further provides a compressor with the compressor power assembly.

To achieve the above object, an embodiment according to a first aspect of the present invention proposes a compressor power assembly comprising: a housing; the coil assembly comprises a plurality of sub-coils, and the plurality of sub-coils are arranged at intervals along the axial direction of the shell; a permanent magnet, one of the coil block and the permanent magnet being provided in the housing and the other being provided in the housing so as to be movable in an axial direction of the housing, the coil block having a protruding portion that protrudes from the permanent magnet in the axial direction of the housing and a superposed portion that is superposed with the permanent magnet in the axial direction of the housing; an energy cutoff mechanism for controlling the cutoff of the sub-coil energy of the extension.

The compressor power assembly provided by the embodiment of the invention has the advantages of high operation efficiency and the like.

In addition, the compressor power assembly according to the above embodiment of the present invention may further have the following additional technical features:

according to one embodiment of the invention, the energy shut-off mechanism comprises a relative position detection device mounted inside the housing for detecting the relative position of the coil assembly and the permanent magnet and controlling the de-energizing of the sub-coils of the extension.

According to one embodiment of the invention, the coil assembly has a first end and a second end in the housing axial direction, the coil assembly and the permanent magnet have a first relative position in which at least one of the sub-coils adjacent to the first end protrudes out of the permanent magnet in the housing axial direction, and a second relative position in which at least one of the sub-coils adjacent to the second end protrudes out of the permanent magnet in the housing axial direction.

According to one embodiment of the present invention, the relative position detecting device includes a controller, a first hall sensor and a second hall sensor, the first hall sensor is disposed between two adjacent sub-coils, the second hall sensor is disposed between two adjacent sub-coils, the first hall sensor is closer to the first end than the second hall sensor, the first hall sensor and the second hall sensor are electrically connected to the controller, and the controller is electrically connected to the corresponding sub-coils, and the sub-coils between the first hall sensor and the first end are deenergized when the first hall sensor protrudes out of the permanent magnet in the axial direction of the housing; the sub-coil between the second hall sensor and the second end is de-energized when the second hall sensor protrudes out of the permanent magnet in the housing axial direction.

According to one embodiment of the invention, the first hall sensor is arranged between two of the sub-coils adjacent to the first end, and the second hall sensor is arranged between two of the sub-coils adjacent to the second end.

According to one embodiment of the present invention, the first hall sensor is plural and provided between each adjacent two of the plural sub-coils adjacent to the first end, the second hall sensor is plural and provided between each adjacent two of the plural sub-coils adjacent to the second end, the sub-coil extending in the housing axial direction between the first hall sensor and the first end of the permanent magnet is deenergized; the sub-coil extending axially from the housing between the second hall sensor and the second end of the permanent magnet is de-energized.

According to one embodiment of the present invention, the coil assembly includes an insulating frame in which a plurality of the sub-coils are arranged at intervals in the axial direction of the housing, each adjacent two of the sub-coils being spaced apart by an insulating spacer.

According to one embodiment of the invention, the first hall sensor and the second hall sensor are provided on the insulating spacer.

According to one embodiment of the invention, the insulating frame is open towards one side of the permanent magnet.

According to one embodiment of the invention, the length of the coil assembly in the housing axial direction is greater than the length of the permanent magnet in the housing axial direction.

An embodiment according to a second aspect of the invention proposes a compressor comprising a compressor power assembly according to an embodiment of the first aspect of the invention.

According to the compressor disclosed by the embodiment of the invention, the compressor power assembly disclosed by the embodiment of the first aspect of the invention has the advantages of high operation efficiency and the like.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a partial structural schematic view of a compressor according to an embodiment of the present invention.

Fig. 2 is a sectional view of a compressor according to an embodiment of the present invention.

Fig. 3 is a sectional view of a compressor according to another embodiment of the present invention.

Fig. 4 is a partial cross-sectional view of a compressor power assembly according to another embodiment of the present invention.

Fig. 5 is a partial cross-sectional view of a compressor power assembly according to another embodiment of the present invention.

Fig. 6 is a schematic circuit diagram of a compressor power assembly according to an embodiment of the present invention.

Fig. 7 is a flowchart of a control method of a compressor power pack according to an embodiment of the present invention.

Reference numerals: the compressor 1, the housing 10, the coil assembly 20, the sub-coil 21, the insulating frame 22, the insulating spacer 23, the permanent magnet 30, the hall sensor 40, the first hall sensor 41, the second hall sensor 42, the micro control unit 43, the control circuit 44, the piston 50, the plate spring 60, the yoke 70, the cylinder 80, and the compressor power assembly 100.

Detailed Description

The present application is made based on the discovery and recognition by the inventors of the following facts and problems:

In particular, in the related art linear compressor, in order to secure the driving force, the axial length of the coil is made larger than that of the permanent magnet, so that the coil inevitably protrudes from the permanent magnet in the axial direction, and the portion protruding from the permanent magnet is of an ineffective length, which cannot contribute to the improvement of the driving force and causes the loss of the power components of the compressor in terms of electric resistance.

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

A compressor power assembly 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1 to 7, a compressor power assembly 100 according to an embodiment of the present invention includes a housing 10, a coil assembly 20, a permanent magnet 30, and an energy cutoff mechanism.

The coil assembly 20 includes a plurality of sub-coils 21, and the plurality of sub-coils 21 are disposed at intervals along the axial direction of the housing 10. One of the coil assembly 20 and the permanent magnet 30 is provided in the housing 10 and the other is provided in the housing 10 so as to be movable in the axial direction of the housing 10, and the coil assembly 20 has a protruding portion protruding from the permanent magnet 30 in the axial direction of the housing 10 and an overlapping portion overlapping with the permanent magnet 30 in the axial direction of the housing 10. The energy cutoff mechanism is used to control the power down of the extended sub-coil 21.

Specifically, the energy shut-off mechanism includes a relative position detecting device mounted inside the housing 10 for detecting the relative position of the coil assembly 20 and the permanent magnet 30 and controlling the sub-coils 21 of the extension to be deenergized.

Specifically, the coils 21 of the overlap remain energized during operation of the compressor power assembly 100.

It will be appreciated by those skilled in the art that during the relative movement of the coil assembly 20 and the permanent magnet 30, the position of the extension and overlap on the coil assembly 20 is varied, while the relative position detecting means always de-energizes the sub-coil 21 of the portion of the coil assembly 20 extending beyond the permanent magnet 30.

According to the compressor power assembly 100 of the embodiment of the invention, the coil assembly 20 comprises the plurality of sub-coils 21, so that the plurality of sub-coils 21 can be independently powered, and the energy cutting mechanism is used for cutting off the power of the sub-coils 21 of the extending part, so that the operation efficiency of the compressor power assembly 100 is prevented from being influenced by the self-resistance heating loss of the sub-coils 21 of the extending part which cannot provide assistance to the driving force, and compared with the mode of directly shortening the axial length of the coil winding, the influence on the effective length of the coil assembly 20 can be reduced, and the driving force of the compressor power assembly 100 is ensured.

Further, by making the energy shut-off mechanism include a relative position detecting means mounted inside the housing 10 for detecting the relative position of the coil assembly 20 and the permanent magnet 30 and controlling the sub-coils 21 of the extension to be deenergized. Through setting up relative position detection device, can utilize relative position detection device to detect the relative position of coil pack 20 and permanent magnet 30, judge the position change of extension and coincidence portion, thereby the sub-coil 21 outage of extension is accurate, avoid the sub-coil 21 of extension that can not provide the help for the drive power to influence the operating efficiency of compressor power pack 100 because of self resistance loss that generates heat, compare the mode of directly shortening coil winding's axial length moreover, can reduce the influence to coil pack 20 effective length, guarantee the drive power of compressor power pack 100.

It should be understood here that the "extended portion sub-coil 21" may be the sub-coil 21 located entirely in the extended portion, or may be the sub-coil 21 located at least partially in the extended portion. Powering down only the sub-coil 21 entirely located at the protruding portion can facilitate securing the effective length of the coil assembly 20, facilitating securing the driving force; powering down at least a portion of the sub-coils 21 located in the extension portion may facilitate reducing resistive losses and improving the operating efficiency of the compressor power assembly 100.

Therefore, the compressor power assembly 100 according to the embodiment of the present invention has advantages of high operation efficiency, etc.

In some embodiments of the present invention, as shown in fig. 1 to 7, a compressor power assembly 100 according to an embodiment of the present invention includes a housing 10, a coil assembly 20, a permanent magnet 30, and a relative position detecting device.

Specifically, as shown in fig. 1 to 5, the coil assembly 20 has a first end and a second end in the axial direction of the housing 10, the coil assembly 20 and the permanent magnet 30 have a first relative position (as shown in fig. 4) in which at least one sub-coil 21 adjacent to the first end protrudes from the permanent magnet 30 in the axial direction of the housing 10, and a second relative position (as shown in fig. 5) in which at least one sub-coil 21 adjacent to the second end protrudes from the permanent magnet 30 in the axial direction of the housing 10. Specifically, the relative position detecting means de-energizes only the sub-coil 21 that is entirely located at the protruding portion. In this way, at least one sub-coil 21 extends out of the permanent magnet 30 at the first relative position and the second relative position, so that resistance loss is reduced and operation efficiency of the compressor power assembly 100 is improved while driving force of the compressor power assembly 100 is ensured.

More specifically, as shown in fig. 4 and 5, the relative position detecting device includes a controller and a plurality of hall sensors 40, the hall sensors 40 including a first hall sensor 41 and a second hall sensor 42, the first hall sensor 41 being disposed between adjacent two sub-coils 21, the second hall sensor 42 being disposed between adjacent two sub-coils 21, the first hall sensor 41 being closer to a first end than the second hall sensor 42, the first hall sensor 41 and the second hall sensor 42 being electrically connected to the controller, and the controller being electrically connected to the corresponding sub-coils 21, the sub-coils 21 between the first hall sensor 41 and the first end being deenergized when the first hall sensor 41 extends out of the permanent magnet 30 in the axial direction of the housing 10; the sub-coil 21 between the second hall sensor 42 and the second end is deenergized when the second hall sensor 42 protrudes out of the permanent magnet 30 in the axial direction of the housing 10. As will be understood by those skilled in the art, the hall sensor 40 outputs different level signals when it coincides with the permanent magnet 30 and when it protrudes from the permanent magnet 30, specifically, as shown in fig. 7, the hall sensor 40 outputs a higher level signal when it coincides with the permanent magnet 30 and outputs a lower level signal when it protrudes from the permanent magnet 30, and it can be determined whether the hall sensor 40 protrudes from the permanent magnet 30 by detecting a change in the level signal. This can facilitate detection and judgment of the sub-coil 21 extending from the permanent magnet 30, and facilitate power-off of the sub-coil 21 extending from the permanent magnet 30.

Specifically, as shown in fig. 6, the controller includes a micro control unit 43 and a control circuit 44, and the micro control unit 43 is electrically connected to the control circuit 44 and the hall sensor 40, respectively.

Specifically, the relative position detecting device may also detect the relative position of the coil assembly 20 and the permanent magnet 30 in other forms. The relative movement position of the coil assembly 20 and the permanent magnet 30 can correspond to the sub-coil 21 protruding from the permanent magnet 30 in the axial direction, and the sub-coil 21 protruding from the permanent magnet 30 in the axial direction can be found by detecting the relative position of the coil assembly 20 and the permanent magnet 30.

In some embodiments, as shown in fig. 4 and 5, a first hall sensor 41 is provided between two sub-coils 21 adjacent to the first end, and a second hall sensor 42 is provided between two sub-coils 21 adjacent to the second end. This allows for de-energization when the nearest end sub-coil 21 is fully extended out of the permanent magnet 30.

In other embodiments, the first hall sensor 41 is plural and disposed between each adjacent two of the plurality of sub-coils 21 adjacent to the first end, the second hall sensor 42 is plural and disposed between each adjacent two of the plurality of sub-coils 21 adjacent to the second end, and the sub-coil 21 between the first hall sensor 41 extending out of the permanent magnet 30 in the axial direction of the housing 10 and the first end is deenergized; the sub-coil 21 extending in the axial direction of the housing 10 between the second hall sensor 42 of the permanent magnet 30 and the second end is deenergized. In this way, when the relative motion amplitude of the permanent magnet 30 and the coil assembly 20 changes, the power of the sub-coils 21 with different numbers can be cut off, so that more accurate dynamic control of the compressor power assembly 100 is realized. For example, when the permanent magnet 30 and the coil assembly 20 are relatively moved by a small magnitude, one sub-coil 21 and its adjacent hall sensor 40 extend out of the permanent magnet 30 each time when the first or second relative position is reached, and at this time, one sub-coil 21 extending out of the permanent magnet 30 is de-energized each time, and when the permanent magnet 30 and the coil assembly 20 are relatively moved by a large magnitude, two sub-coils 21 and their corresponding hall sensors 40 extend out of the permanent magnet 30 each time when the first or second relative position is reached, and at this time, two sub-coils 21 extending out of the permanent magnet 30 are de-energized each time.

Fig. 1-5 illustrate a compressor power assembly 100 according to some examples of the invention. As shown in fig. 1 to 5, the coil assembly 20 includes an insulating frame 22, and a plurality of sub-coils 21 are arranged in the insulating frame 22 at intervals in the axial direction of the housing 10, with each adjacent two of the sub-coils 21 being spaced apart by an insulating spacer 23. This facilitates the arrangement of the plurality of sub-coils 21 and the individual control of the on-off state of the sub-coils 21.

Specifically, as shown in fig. 4 and 5, the first hall sensor 41 and the second hall sensor 42 are provided on the insulating spacer 23. This can facilitate the installation of the hall sensor 40.

Advantageously, as shown in fig. 1-5, the insulating frame 22 is open to one side of the permanent magnet 30. This prevents the insulating frame 22 from affecting the magnetic field between the permanent magnet 30 and the coil assembly 20.

Alternatively, as shown in fig. 4 and 5, the length of the coil assembly 20 in the axial direction of the housing 10 is greater than the length of the permanent magnet 30 in the axial direction of the housing 10. This can facilitate securing the effective length of the coil assembly 20 and enhancing the driving force of the compressor power assembly 100.

The relative movement stroke of the coil assembly 20 and the permanent magnet 30 may be 15 mm.

Specifically, as shown in fig. 1 to 3, the compressor 1 may include a piston 50, a plate spring 60, a yoke 70, and a cylinder 80, the yoke 70 being provided in the housing 10, the cylinder 80 being provided radially inward of the yoke 70, the piston 50 being axially movably provided inward of the cylinder 80, the plate spring 60 supporting the cylinder 80 in the radial direction.

The compressor power pack 100 may be a moving coil type as shown in fig. 1 and 2, i.e., the permanent magnet 30 is provided on the yoke 70 and the coil pack 20 is connected to the piston 50.

The compressor power pack 100 may also be a moving magnet, as shown in fig. 3-5, in which the coil assembly 20 is disposed on the yoke 70 and the permanent magnet 30 is coupled to the piston 50.

The compressor 1 according to the embodiment of the present invention is described below. The compressor 1 according to the embodiment of the present invention includes the compressor power assembly 100 according to the above-described embodiment of the present invention.

The compressor 1 according to the embodiment of the present invention has advantages of high operation efficiency, etc., by using the compressor power assembly 100 according to the above-described embodiment of the present invention.

Specifically, the compressor 1 is a linear compressor.

Other constructions and operations of the compressor 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A compressor power assembly, comprising:

a housing;

the coil assembly comprises a plurality of sub-coils, and the plurality of sub-coils are arranged at intervals along the axial direction of the shell;

a permanent magnet, one of the coil block and the permanent magnet being provided in the housing and the other being provided in the housing so as to be movable in an axial direction of the housing, the coil block having a protruding portion that protrudes from the permanent magnet in the axial direction of the housing and a superposed portion that is superposed with the permanent magnet in the axial direction of the housing;

an energy cutoff mechanism for controlling the cutoff of the sub-coil energy of the extension.

2. The compressor power assembly of claim 1, wherein the energy cutoff mechanism includes a housing internally mounted relative position detection device for detecting a relative position of the coil assembly and the permanent magnet and controlling de-energization of the sub-coils of the extension.

3. The compressor power assembly of claim 2, wherein the coil assembly has a first end and a second end in the housing axial direction, the coil assembly and the permanent magnet having a first relative position in which at least one of the sub-coils adjacent the first end extends out of the permanent magnet in the housing axial direction, and a second relative position in which at least one of the sub-coils adjacent the second end extends out of the permanent magnet in the housing axial direction.

4. The compressor power pack of claim 3, wherein the relative position detecting device includes a controller, a first hall sensor and a second hall sensor, the first hall sensor is disposed between two adjacent sub-coils, the second hall sensor is disposed between two adjacent sub-coils, the first hall sensor is closer to the first end than the second hall sensor, the first hall sensor and the second hall sensor are electrically connected to the controller, and the controller is electrically connected to the corresponding sub-coils;

de-energizing the sub-coil between the first hall sensor and the first end when the first hall sensor protrudes out of the permanent magnet in the housing axial direction;

the sub-coil between the second hall sensor and the second end is de-energized when the second hall sensor protrudes out of the permanent magnet in the housing axial direction.

5. The compressor power assembly of claim 4, wherein the first hall sensor is disposed between two of the sub-coils adjacent the first end and the second hall sensor is disposed between two of the sub-coils adjacent the second end.

6. The compressor power assembly of claim 4, wherein said first hall sensor is plural and disposed between each adjacent two of said plurality of sub-coils adjacent said first end, said second hall sensor is plural and disposed between each adjacent two of said plurality of sub-coils adjacent said second end, said sub-coils extending axially of said housing between said first hall sensor and said first end of said permanent magnet are de-energized; the sub-coil extending axially from the housing between the second hall sensor and the second end of the permanent magnet is de-energized.

7. The compressor power assembly of claim 4, wherein said coil assembly includes an insulating frame, a plurality of said sub-coils being spaced apart in said insulating frame along an axial direction of said housing, each adjacent two of said sub-coils being spaced apart by an insulating spacer.

8. The compressor power assembly of claim 7, wherein the first hall sensor and the second hall sensor are provided on the insulating spacer.

9. The compressor power assembly of claim 7, wherein the insulating frame is open to one side of the permanent magnet.

10. The compressor power assembly of claim 1, wherein a length of the coil assembly in the housing axial direction is greater than a length of the permanent magnet in the housing axial direction.

11. A compressor comprising a compressor power assembly according to any one of claims 1-10.