Juicer having improved motor cooling structure

Abstract

The present invention presents a juicer having an improved motor cooling structure, the juicer comprising: a motor main body including a driving motor, which rotates by means of the application of current and transmits power, and a cooling fan, which is connected to a rotary shaft of the driving motor so as to rotate; a speed reducer which is coupled to the motor main body and which has, therein, a reduction gear that decelerates rotational force generated by a motor in order to transmit same to an output shaft; and a juicer housing for accommodating the motor main body and the speed reducer therein, wherein an air vent section is provided between the speed reducer and the motor main body so that an additional air flow path is ensured.

Description

A juicer with an improved motor cooling structure

[0001] The present invention relates to a juicer having an improved motor cooling structure.

[0002] Conventional drive motors for juicers generate high temperatures in the motor body when driven, which can cause damage to motor parts and energy loss due to heat generation when used for long periods of time.

[0003] Additionally, the motor lifespan is shortened due to the decrease in magnetic force inside the motor, which causes limitations in operating for a short operating time.

[0004] Therefore, in order to forcibly cool the heat generated from the motor when the motor is driven, a cooling fan that rotates by being coupled to the motor's rotational axis is installed, and the cooling fan has a plurality of fan blade members formed radially on a circular plate whose rotational center is fixed to the rotational axis.

[0005] However, conventional cooling fans have a problem in that the cooling effect is reduced because the fan blades are not formed uniformly or the structure of the fan blades is not designed to efficiently form a large wind pressure.

[0006] Additionally, there was a problem of reduced cooling effect due to the lack of an air flow structure to efficiently reduce heat between the motor and the reducer.

[0007] Related prior art documents include Republic of Korea Public Utility Model No. 20-2022-0001522 (June 27, 2022) and Republic of Korea Registered Patent No. 10-1516977 (May 4, 2015).

[0008] The purpose of the present invention to solve the above-described problems is to provide a compressor having an improved motor cooling structure in which a disk-shaped fan blade member of a motor cooling fan extends to a rotational axis of a center of rotation, and a gap between the fan blade members is formed radially with a gradually inclined curve around the rotational axis, thereby increasing wind pressure and air directionality.

[0009] In addition, an object of the present invention is to provide a compressor having an improved motor cooling structure that can improve the cooling effect by providing an additional air vent section between the reducer and the motor body to secure an additional air flow.

[0010] In order to achieve the above-described object, a juicer having an improved motor cooling structure according to one aspect of the present invention comprises: a motor body having a driving motor that rotates and transmits power by application of current and a cooling fan that is connected to a rotational shaft of the driving motor and rotates; a reducer that is coupled to the motor body and has a reduction gear inside for reducing the rotational force generated by the motor and transmitting it to an output shaft; and a juicer housing that accommodates the motor body and the reducer inside, wherein an air vent section is provided between the reducer and the motor body to secure an additional air flow path.

[0011] In addition, in a juicer having an improved motor cooling structure according to one aspect of the present invention, the juicer housing includes a housing body, a lower housing, and an upper housing; an air vent is provided on a side of the housing body, and an auxiliary air vent is further included between the lower housings; and the auxiliary air vent is positioned adjacent to the upper housing.

[0012] In addition, in a raw material machine having an improved motor cooling structure according to one aspect of the present invention, the bottom of the reducer includes a receiving portion in which a bearing is received; and the periphery of the receiving portion is formed by reducing the thickness, so that a space is provided between the motor housing and the reducer cover, thereby providing an air vent section.

[0013] In addition, in a raw material machine having an improved motor cooling structure according to one aspect of the present invention, the cooling fan is composed of a first cooling fan positioned at the bottom of the motor and a second cooling fan positioned at the top of the motor; and the first cooling fan and the second cooling fan are characterized in that they have the same size and shape.

[0014] In addition, in a juicer having an improved motor cooling structure according to one aspect of the present invention, the motor cooling fan is characterized in that a fan blade member in the shape of a disk extends to a rotational axis of the center of rotation, and a gap between the fan blade members is formed radially with a gradually inclined curved surface centered on the rotational axis, thereby increasing wind pressure and air directionality.

[0015] In addition, a juicer having an improved motor cooling structure according to one aspect of the present invention is characterized in that the lower housing of the juicer is provided with an intake port on the lower side; and a side wall is not provided on the bottom surface of the lower housing, so that a flow path flowing into the intake port is formed.

[0016] According to the present invention, the fan blade member of the motor cooling fan in the shape of a disk extends to the rotation axis of the center of rotation, and the gap between the fan blade members is formed radially with a gradually inclined curve around the rotation axis, thereby increasing wind pressure and air directionality, thereby increasing the rated use time of the original juicer through an improved cooling effect, and has the effect of strengthening the durability of the parts.

[0017] In addition, according to the present invention, by providing an additional air vent section between the reducer and the motor body, an additional air flow path is secured, thereby improving cooling efficiency without increasing the size of the motor of the original juicer, thereby reducing costs.

[0018] Figure 1 is a drawing showing a raw material processor having an improved motor cooling structure according to the present invention.

[0019] Fig. 2 is a drawing showing the internal structure of the original juicer excluding the body housing in Fig. 1.

[0020] FIGS. 3 to 5 are drawings showing a motor body and a reducer in a juicer having an improved motor cooling structure according to the present invention.

[0021] FIG. 6 and FIG. 7 are drawings showing the structure of the motor body in a juicer having an improved motor cooling structure according to the present invention.

[0022] FIGS. 8 and 9 are drawings showing a cooling fan in a raw material processor having an improved motor cooling structure according to the present invention.

[0023] Figures 10 to 13 are drawings showing the structure of a reducer in a raw material machine having an improved motor cooling structure according to the present invention.

[0024] Fig. 14 is a drawing showing a state in which an air flow path is formed in a raw material machine having an improved motor cooling structure according to the present invention.

[0025] FIG. 15 is a drawing showing a bottom housing in a raw material machine having an improved motor cooling structure according to the present invention.

[0026] Fig. 16 is a drawing showing an air flow path of a raw material generator having an improved motor cooling structure according to the present invention.

[0027] The purpose and technical configuration of the present invention and the resulting operation and effects will be more clearly understood through a detailed description based on the drawings attached to the specification of the present invention.

[0028] The terminology used herein is merely used to describe specific embodiments and is not intended to limit the present invention. For example, terms such as "consist of" or "include" used herein should not necessarily be construed to include all of the various components or various steps described in the invention, but should be construed to mean that some of the components or some steps may not be included, or that additional components or steps may be included. Furthermore, the singular expression "a" or "an" as used herein includes the plural expression unless the context clearly dictates otherwise.

[0029] Hereinafter, the present invention will be described in detail by describing preferred embodiments thereof with reference to the attached drawings. The embodiments described below are provided to facilitate the technical concept of the present invention for those skilled in the art to understand, and should not be construed as limiting the present invention. It should be understood that the embodiments of the present invention will have various applications to those skilled in the art.

[0030] Referring to FIGS. 1 to 7, a juicer having an improved motor cooling structure according to the present invention includes a juicer body (10) and a juicer housing (15) that accommodates a motor body (100) and a reducer (150) therein.

[0031] The motor body (100) is provided with a driving motor (135) that rotates and transmits power by applying current, and a cooling fan (110, 120) that is connected to the rotation shaft (130) of the driving motor (135) and rotates.

[0032] In addition, the reducer (150) is provided by being coupled to the motor body (100) and may have a reduction gear provided therein to reduce the rotational force generated from the drive motor (135) and transmit it to the output shaft.

[0033] In addition, the original housing includes a housing body (15), a lower housing (19), and an upper housing (18), and an air vent (11) is provided on the side of the housing body (15), and an auxiliary air vent (12) may be further included between the lower housings.

[0034] At this time, the auxiliary air vent (12) is positioned adjacent to the upper housing (18) to allow air for cooling to flow in smoothly.

[0035] In addition, the positioning adjacent to the upper housing (18) can improve cooling efficiency by facilitating air circulation through air convection.

[0036] In addition, referring to FIGS. 8 and 9, a cooling fan (110, 120) that is coupled to the motor rotation shaft (130) and rotates to forcibly cool the heat generated from the drive motor (135) is provided, and may be composed of a first cooling fan (110) positioned below the drive motor (135) and a second cooling fan (120) positioned above the drive motor (135).

[0037] Additionally, the size and shape of the first cooling fan (110) and the second cooling fan (120) can be formed to be the same.

[0038] In the past, the sizes of the cooling fans provided on the upper and lower sides of the drive motor were different, so the upper cooling fan and the lower cooling fan had to be manufactured and assembled separately. However, in the present invention, the sizes and shapes are formed to be the same, so that manufacturing and assembly can be made easy.

[0039] In addition, the sizes of the lower housing (101) and the upper housing (102) of the motor body (100) are formed to be the same or similar, so that an air flow can be secured by securing the internal space of the lower housing (101), and the size of the cooling fan can be expanded, so that the same cooling fan can be assembled without distinction between the lower and upper sides of the driving motor.

[0040] In addition, in the original device having an improved motor cooling structure according to the present invention, a cooling fan (110) is formed with a plurality of fan blade members (112) radially on a rotating plate (115) in the shape of a disk with a center of rotation (111) fixed to a rotation shaft (130).

[0041] In addition, the cooling fan (110) has a fan blade member (112) provided on a circular plate (115) that extends to the rotation axis (130) of the rotation center (111), thereby supporting the rotation axis (130) and increasing the wind pressure to improve the cooling effect.

[0042] In addition, the fan blade member (112) extends from the rotation axis and extends in a streamlined manner to the outer surface, so that the radius where pressure is generated gradually widens, thereby increasing the wind pressure and improving the cooling effect.

[0043] That is, it can be formed into a structure in which the gap (d1) adjacent to the center of the rotation axis and the gap (d2) gradually widen toward the radial outer surface.

[0044] In addition, the cooling fan (110) has a cooling hole (113) that is connected to the driving motor (135), thereby improving the cooling effect of heat generated from the driving motor (135).

[0045] By this, the cooling fan (110) has a fan blade member (112) provided on a circular plate (115) that extends to the rotation axis (130) of the rotation center (111), and the gap between the fan blade members is formed radially with a gradually inclined curve around the rotation axis (130), thereby having the effect of increasing wind pressure and air directionality.

[0046] Referring to FIGS. 10 to 14, the reducer (150) may be combined with a bottom portion (151) and a cover portion (155), and may include, inside the bottom portion (151) and the cover portion (155), a connecting gear (145) connected to the rotational shaft (130) of the motor, a connecting shaft (140) connected and driven by the connecting gear (145), an output gear (165) driven by the connecting shaft (140), and an output shaft (160) driven by the output gear.

[0047] At this time, a part of the output shaft (160) may be accommodated within the bottom part (151) and cover part (155) of the reducer (150), and a part may be formed to protrude.

[0048] Additionally, bearings (141, 142) may be provided on the lower and upper sides of the connecting shaft (140), and bearings (161, 162) may be provided on the lower and upper sides of the output shaft (160).

[0049] The bottom part (151) of the reducer (150) may be provided with a receiving part (151a) including receiving grooves (152, 153) that can each receive lower bearings (141, 161) and an insertion hole (154) into which the rotation shaft (130) of the driving motor is inserted.

[0050] In addition, the reducer (150) of the original device having an improved motor cooling structure according to the present invention is characterized in that the bottom part (151) is formed by reducing the area around the receiving part (151a) without using a mass-produced product, so that a space is provided between the motor housing (102) and the bottom part (151) of the reducer, thereby providing an air vent section (G).

[0051] That is, the bottom part (151) and the cover part (155) each have a joining hole (154a, 155a)

[0052] Therefore, the original device (10) having an improved motor cooling structure according to the present invention has the effect of improving cooling efficiency by providing a separation section (G) between the reducer (150) and the motor body (100) to form and secure an additional air flow path.

[0053] Also, referring to FIG. 15, FIG. 15(a) is a drawing showing a conventional juicer lower housing, and FIG. 15(b) is a drawing showing an improved juicer lower housing according to the present invention.

[0054] That is, the lower housing (19) of the liquid according to the present invention is provided with a suction port (19a) on the lower side, and since no side wall is provided on the bottom surface of the lower housing (19), a flow path flowing into the suction port is formed, so that the cooling efficiency can be improved.

[0055] When a side wall is formed as in Fig. 15(a), air does not flow smoothly into the intake port, so there is not enough air for cooling.

[0056] Accordingly, as shown in Fig. 15(b), when the side wall is removed and no side wall is provided, a flow path flowing into the intake port (19a) is formed, allowing air to flow in smoothly, thereby improving cooling efficiency.

[0057] Fig. 16 is a drawing showing an air flow path of a juicer having an improved motor cooling structure according to the present invention. Air is introduced into the juicer through an air vent (11) and an inlet (19a) on the side of the juicer, circulates around the drive motor (135), cools the motor, and is discharged through the air vent (11).

[0058] In addition, the air drawn in through the air vent (11) and the intake port (19a) can circulate through the gap (G) formed between the motor housing and the reducer, thereby allowing the reducer to be cooled.

[0059] That is, the air that is drawn in through the bottom of the main body and the air vent circulates throughout the main body and is discharged through the air vent (11) formed on the side of the main body.

[0060] Here, the air flowing into the motor circulates through the main body, passes through the air passage formed through the separation section (G) between the motor and the reducer, and is discharged again through the air vent (11).

[0061] In addition, the air flowing into the original device through the auxiliary air vent (12) can flow from the top to the bottom, and the cooler air flowing in can move downward and circulate more than the warm air discharged after cooling the motor, thereby improving the cooling efficiency through the convection phenomenon.

[0062] Through this, the temperature change according to the use time of the original motor according to the existing motor cooling structure and the improved motor cooling structure is as follows, as shown in Table 1.

[0063] Table 1

[0064]

[0065]

[0066] The temperature measurement method for this test was to measure the temperature by taking points on the motor coil, reducer, inside the body, and the ambient temperature.

[0067]

[0068] Table 2

[0069]

[0070]

[0071] In addition, when comparing the operating temperature for 30 minutes by part of the conventional motor temperature and the motor temperature of the present invention as shown in Table 2 in an embodiment of the present invention, it can be confirmed that the motor temperature of the present invention is lower overall from the motor coil, which is the highest temperature, to the ambient temperature, which is the lowest temperature as a result of the motor temperature measurement.

[0072]

[0073] Table 3

[0074]

[0075] In addition, in an embodiment of the present invention, as shown in Table 3, the operating temperature for each part of the conventional motor temperature and the self-invented motor temperature is compared for 45 to 60 minutes.

[0076] For reference, conventional motors stop operating after exceeding the maximum temperature resistance value (standard: 105 degrees) for more than 45 minutes, so any time beyond that cannot be measured.

[0077] As a result of measuring the motor temperature, it can be confirmed that the temperature value of the motor temperature of the present invention is lower overall, from the highest temperature point of the motor coil to the lowest temperature point of the ambient temperature.

[0078] Therefore, as a result of the temperature test of the motor, it was confirmed in the temperature measurement comparison test of the conventional motor and the motor of the present invention that the cooling efficiency of the motor of the present invention was improved.

[0079] Therefore, according to the present invention, the disk-shaped fan blade member of the motor cooling fan is extended to the rotation axis of the center of rotation, and the gap between the fan blade members is formed radially with a gradually inclined curve around the rotation axis, thereby increasing wind pressure and air directionality, thereby increasing the rated use time of the original juicer through an improved cooling effect, and has the effect of strengthening the durability of the parts.

[0080] In addition, according to the present invention, by providing an additional air vent section between the reducer and the motor body, an additional air flow path is secured, thereby improving cooling efficiency without increasing the size of the motor of the original juicer, thereby reducing costs.

[0081] The embodiments described above are provided to enable those skilled in the art to easily understand the technical concept of the present invention, and should not be construed as limiting the present invention thereby. It will be apparent to those skilled in the art that the embodiments of the present invention can be variously modified and altered without departing from the spirit and scope of the present invention. Accordingly, such modifications or variations should be considered to fall within the scope of the claims of the present invention.

[0082] 10: Juicer body 11: Air vent

[0083] 12: Auxiliary air vent 15: Housing body

[0084] 18: Upper housing 19: Lower housing

[0085] 100: Motor body 101: First housing

[0086] 102: Second housing 130: Rotating shaft

[0087] 135: Motor 140: Connecting shaft

[0088] 141,142, 161, 162: Bearings 145, 165: Gears

[0089] 150: Reducer 151: Bottom

[0090] 151a: Receiving section 152: Cover section

[0091] 160: Output shaft

Claims

1. A motor body having a driving motor that rotates and transmits power by the application of current and a cooling fan that is connected to the rotation shaft of the driving motor and rotates; A reducer coupled to the above motor body and having a reduction gear inside for reducing the rotational power generated from the motor and transmitting it to the output shaft; and Including a raw material housing that accommodates the above motor body and reducer inside, A distillation machine having an improved motor cooling structure, characterized in that an air vent section is provided between the reducer and the motor body to secure an additional air flow.

2. In claim 1, The above-mentioned original device housing is, It includes a housing body, a lower housing, and an upper housing; An air vent is provided on the side of the above housing body, and an auxiliary air vent is further included between the lower housing and the lower housing; A distillation unit having an improved motor cooling structure, characterized in that the auxiliary air vent is positioned adjacent to the upper housing.

3. In claim 1, The bottom of the reducer includes a receiving portion in which a bearing is received; A juicer having an improved motor cooling structure, characterized in that a space is provided between the motor housing and the reducer cover by forming the periphery of the receiving portion through reduction, thereby providing an air vent section.

4. In claim 1, The above cooling fan is composed of a first cooling fan located at the bottom of the motor and a second cooling fan located at the top of the motor; A distillation unit having an improved motor cooling structure, characterized in that the first cooling fan and the second cooling fan have the same size and shape.

5. In claim 1, A motor cooling fan is a condenser having an improved motor cooling structure, characterized in that a disc-shaped fan blade member extends to a rotational axis at the center of rotation, and a gap between the fan blade members is gradually formed radially to form an inclined surface around the rotational axis, thereby increasing wind pressure and air directionality.

6. In claim 2, The lower housing of the above-mentioned original device is provided with a suction port on the lower side; A distillation unit having an improved motor cooling structure, characterized in that a flow path flowing into the suction port is formed by not having a side wall on the bottom surface of the lower housing.

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