WO2021049676A1

WO2021049676A1 - Impeller driving device and beverage storage device having same

Info

Publication number: WO2021049676A1
Application number: PCT/KR2019/011659
Authority: WO
Inventors: 최현락
Original assignee: 농업회사법인 주식회사 주원 에프앤비
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2021-03-18

Abstract

Provided, according to one embodiment of the present invention, is an impeller driving device for rotating an impeller disposed in a beverage receptacle, the impeller driving device comprising: an impeller support part installed on the bottom surface of a receptacle and supporting an impeller; a drive motor disposed below the impeller support part; and a shaft connection member disposed between the impeller support part and the drive motor, wherein the impeller support part has an upper rotating shaft and a lower rotating shaft protruding in the upper and lower directions, respectively, wherein the upper rotating shaft is coupled to the impeller, thereby rotating the impeller, and the lower rotating shaft is indirectly connected to a drive shaft of the drive motor through the shaft connection member.

Description

Impeller driving device and beverage storage device having the same

The present invention relates to a beverage storage device, and more particularly, to an impeller driving device for driving an impeller disposed in a container of the beverage storage device and a beverage storage device including the same.

In general, a beverage storage device for refrigerating or warming beverages includes components such as a container for accommodating beverages and cooling means and/or heating means for maintaining the beverage at a predetermined temperature. In some cases, the inside of the container contains an impeller that is circulated to allow the beverage ingredients to mix well.

Conventional beverage storage devices having an impeller are often directly coupled to a drive shaft of a drive motor driving the impeller and a rotation shaft of the impeller. In addition, a bearing is interposed between the impeller rotation shaft and the bottom surface of the container, so that the impeller rotation shaft is rotatably coupled to the bottom surface of the container.

However, in such a conventional configuration, when the drive shaft shakes due to vibration of the drive motor, it affects the impeller rotation shaft coupled to the drive shaft, and thus the bearing or the oil seal around the bearing is damaged. There was a need to improve the quality.

[Prior technical literature]

[Patent Literature]

Patent Document 1: Korean Patent Application Publication No. 2016-0147082 (published on December 22, 2016)

Patent Document 2: Korean Utility Model Registration No. 20-0417629 (announced on June 1, 2006)

An object of the present invention is to solve the above conventional problem, and according to an embodiment, an object of the present invention is to provide a configuration for improving the durability of a beverage storage device by preventing abrasion of a bearing supporting a rotating shaft of an impeller or damage to an oil seal. .

According to an embodiment of the present invention, there is provided an impeller driving device for rotating an impeller disposed in a beverage container, comprising: an impeller support part installed on a bottom surface of the container and supporting the impeller; A driving motor disposed under the impeller support; And a shaft connecting member disposed between the impeller support part and the driving motor, wherein the impeller support part has an upper and a lower rotation shaft protruding in an upper and a lower direction, respectively, wherein the upper rotation shaft is coupled to the impeller to provide an impeller. And the lower rotation shaft is indirectly connected to the drive shaft of the drive motor through the shaft connection member.

According to an embodiment of the present invention, the drive shaft of the drive motor and the rotation shaft of the impeller are indirectly coupled through the shaft connection member and a space is formed in the shaft connection member, so that the drive shaft is shaken due to vibration of the drive motor, and thus the drive shaft. Even if an offset occurs due to the misalignment of the rotation axis of the impeller and the impeller, the gap in the spaced space can absorb the offset, so the rotation axis of the impeller can be firmly coupled to the impeller support and rotate. Can be prevented.

In addition, according to an embodiment of the present invention, since the blade portion of the impeller is fastened by simply fitting the rotation shaft of the impeller support unit, the impeller can be easily replaced and the impeller support unit or the driving motor can be prevented from being damaged due to the impeller. It works.

1 is a perspective view schematically showing a beverage storage device according to an embodiment of the present invention;

2 is an exploded perspective view of an impeller and an impeller driving device of a beverage storage device according to an embodiment;

3 is a perspective view of a shaft connecting member according to an embodiment, and

4 and 5 are cross-sectional views of some components of an impeller driving apparatus according to an embodiment.

[Explanation of code]

10: main body 20: container

30: impeller 40: drive motor

50: coupling member 60: shaft connection member

70: impeller support

The above objects, other objects, features, and advantages of the present invention will be easily understood through the following preferred embodiments related to the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content may be thorough and complete, and the spirit of the present invention may be sufficiently conveyed to those skilled in the art.

In the present specification, when a component is referred to as being on another component, it means that it may be formed directly on the other component or that a third component may be interposed therebetween. In addition, in the drawings, the thickness of the components is exaggerated for effective description of the technical content.

In the present specification, when terms such as first and second are used to describe components, these components should not be limited by these terms. These terms are only used to distinguish one element from another element. The embodiments described and illustrated herein also include complementary embodiments thereof.

In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used in the specification, "comprise" and/or "comprising" does not exclude the presence or addition of one or more other components.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the specific embodiments below, a number of specific contents have been prepared to explain the invention in more detail and to aid understanding. However, a reader who has knowledge in this field enough to understand the present invention can recognize that it can be used without these various specific contents. In some cases, it is mentioned in advance that parts that are commonly known in describing the invention and are not largely related to the invention are not described in order to avoid confusion in describing the invention.

1 is a perspective view schematically showing a beverage storage device according to an embodiment of the present invention.

Referring to the drawings, a beverage storage device 100 according to an embodiment includes a body 10 and a container 20 supported by the body 10 and containing a beverage. An impeller 30 for stirring a beverage is disposed inside the container 20.

The main body 10 may include a top plate 11 supporting the container 20, and therein, a heating unit and a cooling unit for heating or cooling the beverage in the container 20, and driving the impeller 30 Various components, such as an impeller driving device for, may be disposed. In the illustrated embodiment, the main body 10 has a hexahedral shape, but the shape or material of the main body 10 is not limited.

In the illustrated embodiment, the container 20 is disposed and supported on the upper plate 11 of the main body 10. The container 20 may have a cylindrical shape or a jar shape having an open top and a flat bottom surface, but may have various shapes according to specific embodiments.

In one embodiment, the impeller 30 is disposed on the bottom surface of the container 20. As will be described later with reference to FIG. 2, the impeller 30 is fitted and coupled to the rotating shaft of the impeller support 70 installed on the bottom surface of the container 20, and the driving motor 40 is disposed under the impeller support 70 do. As the drive shaft of the drive motor 40 and the rotation shaft of the impeller support 70 are coupled, the impeller 30 is rotated by the drive motor 40.

Meanwhile, the main body 10 may include a panel unit 15 for receiving a user input for controlling and operating a device and displaying a manufacturing state or storage state of a beverage to the user. In one embodiment, the panel unit 15 may include one or more switches, buttons, and/or displays. In the illustrated embodiment, the panel portion 15 is disposed on the side of the body 10, but in an alternative embodiment it may be installed at any position of the body 10.

2 is an exploded perspective view schematically showing an impeller 30 and an impeller driving device rotating the impeller 30 according to an embodiment.

In one embodiment, the impeller driving device may include a drive motor 40, an impeller support part 70, a spacer 50 and a shaft connection member 60 disposed between the drive motor and the impeller support part.

The impeller support 70 is disposed above the drive motor 40. In one embodiment, the upper part of the impeller support 70 is fixed to the bottom surface of the container 20. The impeller support 70 includes a rotation shaft 80 in the center. In the illustrated embodiment, the rotation shaft 80 may include an upper rotation shaft 81 and a lower rotation shaft 83 protruding in the upper and lower directions of the impeller support 70, respectively. The upper rotation shaft 81 and the lower rotation shaft 83 may be integrally formed or may be formed separately and then combined. In one embodiment, a bearing (not shown) is interposed between the rotating shaft 80 and the inner surface of the impeller support 70. For example, the upper rotation shaft 81 and the lower rotation shaft 82 may be rotatably coupled to the impeller support 70 through bearings, respectively.

The upper rotation shaft 81 may be coupled to the impeller 30 to rotate the impeller 30. The lower rotation shaft 83 is connected to the drive shaft 41 of the drive motor 40. In a preferred embodiment, the lower rotation shaft 83 is indirectly connected to the drive shaft 41 of the drive motor through the shaft connection member 60.

The drive motor 40 is disposed inside the main body 10 and includes a drive shaft 41 that rotates by electricity. The driving motor 40 is disposed below the impeller support 70. In the illustrated exemplary embodiment, the driving motor 40 is disposed to be spaced apart from the impeller support 70 by a spacer 50 by a predetermined distance.

The spacer 50 is disposed between the impeller support 70 and the drive motor 40 to couple the impeller support 70 and the drive motor 40, but the lower rotation shaft 83 of the impeller support and the drive shaft 41 of the drive motor ) Between them by a predetermined distance.

The spacer 50 is a cylindrical member having a space 51 therein, and the upper end is coupled with the impeller support 70 and the lower end is coupled with the driving motor 40. In the illustrated embodiment, the upper end of the spacer 50 is coupled with the impeller support 70 by, for example, a screwing method, and a flange having a through hole 53 is formed at the lower end of the spacer 50 to drive the motor 40 ) Can be coupled by a through-hole 43 protruding from the top side of the bolt coupling method. However, such a coupling structure is exemplary and may be coupled to the impeller support 70 and the driving motor 40 by various known coupling methods according to specific embodiments.

The shaft connecting member 60 is disposed in the inner space 51 of the spacer 50 and connects the impeller support 70 and the driving motor 40. In this regard, Figure 3 is a perspective view of a shaft connection member according to an embodiment, Figure 3 (a) is a perspective view of the shaft connection member 60, and Figure 3 (b) is a cross-sectional perspective view. As shown in Fig. 3, the shaft connecting member 60 is a cylindrical member having a through hole 61 in the vertical direction. In the through hole 61, a protrusion 63 protruding in the inner direction of the through hole 61 is formed in a region excluding the upper and lower ends of the shaft connecting member 60. Therefore, the horizontal cross section of the through hole 61 at the upper and lower ends of the shaft connection member 60 is circular, but in the region between the upper and lower parts (hereinafter referred to as “middle part”), the through hole 63 The horizontal cross section of (61) has a shape other than a circle (for example, a polygon, etc.).

For example, referring to Figures 2 to 4, the drive shaft 41 of the drive motor 40 is a cross-sectional shape that meshes with the cross-sectional shape of the lower end 411 having a circular cross-section and the middle portion of the shaft connecting member 60 It is composed of an upper end portion 412 having a, and the shaft connection member 60 can be rotated integrally by the rotation of the drive shaft 41. Similarly, the lower rotational shaft 83 of the impeller support 70 has an upper end 831 having a circular cross-section and a lower end 832 having a cross-sectional shape that meshes with the cross-sectional shape of the intermediate portion of the shaft connection member 60. It is configured and the lower rotation shaft 83 may rotate integrally with the shaft connection member 60 by rotation of the shaft connection member 60. Therefore, with this configuration, the lower rotation shaft 83 of the impeller support 70 and the drive shaft 41 of the driving motor 40 are engaged with each other at the upper and lower portions of the through hole 61, and thus, the rotation of the drive shaft 41 The shaft connection member 60 and the lower rotation shaft 83 may rotate integrally.

In this case, in a preferred embodiment, it is preferable that a spaced space of a predetermined distance is formed between the driving shaft 41 of the driving motor and the inner surface of the through hole 61 of the shaft connecting member 60. For example, as shown in FIG. 4, a space S1 exists between the protrusion 63 inside the shaft connection member 60 and the upper end 412 of the drive shaft 41. In this separation space (S1), only the drive shaft 41 is not relatively rotated with respect to the shaft connection member 60 (that is, the drive shaft 41 does not rotate in vain), and the shaft connection member 60 and the drive shaft 41 are integrally formed. It is desirable to have a play within the range of rotation.

In the exemplary embodiment of FIG. 4, the separation space S1 may be formed by making the diameter of the upper end 412 of the drive shaft 41 smaller than the diameter of the lower end 832 of the lower rotation shaft 83. Alternatively, the diameter of the upper end 412 of the drive shaft 41 and the lower end 832 of the lower rotation shaft 83 are the same, but the diameter of the protrusion 63 adjacent to the upper end 412 of the drive shaft 41 is increased to space a space apart. (S1) can also be formed.

On the other hand, in another alternative embodiment, it may be configured such that a spaced space is formed between the lower rotation shaft 83 of the impeller support 70 and the inner surface of the through hole 61 of the shaft connection member 60. That is, there is no space between the protrusion 63 of the connecting member 60 and the upper end 412 of the drive shaft 41 and are closely coupled, and the protrusion 63 inside the connecting member 60 and the lower end of the lower rotation shaft 83 It can also be configured to create a space between (832). In this case, the spaced apart from the shaft connection member 60 does not rotate relatively only the shaft connection member 60 relative to the lower rotation shaft 832 (that is, only the shaft connection member 60 is not idle) and the shaft connection member 60 and the lower rotation shaft ( It is desirable to have a play within the range in which 832) rotates integrally.

Referring back to FIG. 2, the impeller 30 according to an embodiment may include a first blade part 31 and a second blade part 32. The first blade part 31 and the second blade part 32 are disposed substantially at right angles to each other in the container 20 and are coupled to the upper rotation shaft 81 of the impeller support part 70.

In the illustrated embodiment, the first blade part 31 may be composed of a through hole 311 through which the upper rotation shaft 81 can be inserted, and one or more blades extending in a radial direction from the through

hole

311, and 2 The blade part 32 may also be composed of a through hole 321 through which the upper rotation shaft 81 can be inserted, and one or more blades extending in a radial direction from the through hole 321.

5 is a cross-sectional view of some components of the impeller driving apparatus according to an embodiment, and shows a coupling structure between the upper rotation shaft 81 of the impeller support 70 and the impeller 30.

2 and 5, the cross-section of the upper end portion 811 of the upper rotation shaft 81 has a circular shape, and the cross-section of the lower end portion 812 has a rectangular shape. The through hole 311 of the first blade part 31 of the impeller 30 and the through hole 321 of the second blade part 32 correspond to the square cross-sectional shape of the lower end 812 of the upper rotation shaft 81. Each has a rectangular cross section. Accordingly, as shown, the impeller 30 may be coupled to the upper rotation shaft 81 by sequentially fitting the first blade part 31 and the second blade part 32 to the upper rotation shaft 81. At this time, as shown in Fig. 5, a space S2 is formed between the inner side of each of the first through hole 311 and the second through hole 321 and the lower end 812 of the upper rotation shaft 81 have. In a preferred embodiment, this separation space (S2) does not rotate relatively only the upper rotation shaft 81 for each of the first and second blade parts 31 and 32 (that is, the upper rotation shaft 81 does not rotate. It is preferable to have a clearance within a range in which the first and

second blade portions

31 and 32 and the upper rotation shaft 81 are integrally rotated.

On the other hand, in the illustrated embodiment, the cross section of the upper portion 811 of the upper rotation shaft 81 is shown to have a circular shape and the cross section of the lower portion 812 is a quadrangle, but in an alternative embodiment, the cross section of the lower portion 812 It has a shape, and the first and second through

holes

311 and 321 may also be configured to have a polygonal shape corresponding to the cross-sectional shape of the lower end 812.

When configuring the impeller 30 and the upper rotation shaft 81 as described above, there is an advantage in that the impeller 30 can be easily replaced. That is, without using a separate fastening means such as screwing, simply insert the first and

second blade portions

31 and 32 of the impeller 30 into the upper rotation shaft 81 in order, so that the user can easily replace the impeller.

In addition, according to the above-described configuration, it is possible to prevent damage to the impeller support portion 70 or the driving motor 40 due to the impeller 30. For example, if the beverage is in a high concentration suspension with low fluidity or there are solid lumps in the beverage, the rotation of the impeller is hindered by the resistance of the suspension or solid lumps, and thus the rotation shaft 80 of the drive motor 40 or the impeller support 70 ) Can be damaged. However, according to the above embodiment of the present invention, when resistance of a certain magnitude or more is generated by the solid mass, the first and/or

second blade portions

31 and 32 of the impeller are removed from the upper rotation shaft 81, and thus the impeller 30 Due to this, damage to the impeller support 70 or the driving motor 40 can be prevented.

As described above, although the present invention has been described with reference to limited embodiments and drawings, the present invention is not limited to the above embodiments. Those of ordinary skill in the art to which the present invention pertains will understand that various modifications and variations are possible from the above-described description. Therefore, the scope of the present invention is limited to the described embodiments and should not be defined, but should be defined by the claims to be described later as well as equivalents to the claims.

Claims

An impeller driving device that rotates an impeller disposed in a beverage container,

An impeller support 70 installed on the bottom surface of the container and supporting the impeller;

A driving motor 40 disposed under the impeller support 70; And

Including; a shaft connecting member 60 disposed between the impeller support and the driving motor,

The impeller support 70 includes an upper and a lower rotation shaft protruding in the upper and lower directions, respectively, and the upper rotation shaft is coupled to the impeller to rotate the impeller, and the lower rotation shaft is driven through the shaft connecting member 60. Impeller drive device, characterized in that indirectly connected to the drive shaft of the motor.
The method of claim 1,

The shaft connection member is a cylindrical member having a through hole 61 in the vertical direction,

The shaft connection member and the lower rotation shaft are configured to rotate integrally by rotation of the drive shaft by engaging a lower rotation shaft of the impeller support part and a drive shaft of the drive motor, respectively, at the upper and lower portions of the through hole 61. Impeller drive device.
The method of claim 2,

An impeller driving device, characterized in that a space is formed between the drive shaft of the drive motor and the inner surface of the through hole of the shaft connection member.
The method of claim 3,

The impeller driving apparatus, wherein the spaced space has a clearance within a range in which only the drive shaft is not rotated relative to the shaft connection member, and the shaft connection member and the drive shaft are integrally rotated.
The method of claim 2,

An impeller driving device, characterized in that a space is formed between a lower rotation shaft of the impeller support part and an inner surface of the through hole of the shaft connection member.
The method of claim 5,

The impeller driving device, wherein the spacing space has a clearance within a range in which only the shaft connection member is not rotated relative to the lower rotation shaft, and the shaft connection member and the lower rotation shaft rotate integrally.
The method of claim 2,

An impeller driving device, characterized in that the upper and lower rotary shafts of the impeller support are integrally formed.
The method of claim 2, wherein the impeller,

A first blade portion 31 having at least one first blade and a first through hole through which the upper rotation shaft is inserted; And

And a second blade portion (32) having at least one second blade and a second through-hole through which the upper rotation shaft can be inserted.
The method of claim 8,

An impeller driving device, characterized in that a space is formed between the inner surface of each of the first and second through holes and the upper rotation shaft.
The method of claim 9,

The spacing space is characterized in that it has a clearance within a range in which only the upper rotation shaft is not relatively rotated with respect to each of the first and second blade parts, and the first and second blade parts and the upper rotation shaft are integrally rotated. Impeller drive device.
The method of claim 10,

Impeller driving apparatus, characterized in that the cross section of the upper end portion 811 of the upper rotation shaft 81 is a circular shape and the cross section of the lower end portion 812 has a polygonal shape.