Transmission system for ice maker and ice maker

Abstract

The utility model discloses a transmission system for an ice maker and the ice maker, the ice maker adopts the transmission system, and the transmission system comprises a power input mechanism, a primary transmission mechanism, a secondary transmission mechanism and a power output mechanism; the primary transmission mechanism comprises a worm gear and a worm, and one end of the worm is connected with the power input mechanism; the secondary transmission mechanism comprises a sun gear, a planet carrier, a plurality of planet gears and an outer fixed inner gear ring; the sun gear is connected with the primary transmission mechanism and is driven by the worm gear to rotate; the sun gear is coaxially sleeved with the outer fixing inner gear ring, and the planetary gear is arranged between the sun gear and the outer fixing inner gear ring and meshed with the sun gear and the outer fixing inner gear ring. The planet carrier is connected with and drives the planet gear; the power output mechanism comprises a rotary output shaft fixedly connected with the planet carrier. According to the transmission system for the ice maker, the structure that the worm gear, the worm and the planetary gear are combined is adopted, and the transmission system for the ice maker, which is low in noise, small in size and large and balanced in power output, is obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of ice making machines, in particular to a transmission system for ice making machines and an ice making machine. Background Art

[0002] As people's living standards improve, the types of household appliances are also increasing. In recent years, household ice makers have become a new favorite in people's vision and families. This device can make ice cubes in a short time, providing users with a convenient and fast way to obtain fresh ice cubes, especially suitable for situations where cold drinks are urgently needed or when making cold drinks.

[0003] At the same time, using a household ice maker to make ice cubes at home not only helps to strictly control the water quality and ensure the sanitary conditions of the ice, but also users can choose different molds according to their needs to prepare ice cubes of various shapes and types. In general, household ice makers provide people with a convenient, fast and personalized ice-making solution, becoming one of the indispensable small appliances for modern families.

[0004] However, in the prior art, household ice makers are relatively large in size and occupy more household space. Usually, space and power supplies need to be reserved during furniture decoration, or they need to be embedded in a cabinet, which has a certain impact on the popularity of household ice makers.

[0005] In order to solve the above problems, it is necessary to provide a smaller household ice maker. It is hoped that it can be like small household appliances such as wall breakers, rice cookers, and pressure cookers, with low working noise, small size, and light weight. It can be placed in any position for easy storage, and there is no need to reserve installation space and power supply during home decoration, thereby improving its adaptability.

[0006] The ice maker in the prior art is mainly composed of a water tank, an ice storage area, a refrigeration system, a power transmission system and other structures. However, through research, it is found that the power transmission system of the ice maker in the prior art is large in size and has high working noise, which limits people's requirements for miniaturization and low noise of the ice maker. Therefore, it is necessary to seek an innovative design of the transmission system for the ice maker to meet people's demand for a small, low-noise household ice maker. Utility Model Content

[0007] In order to overcome at least one of the defects of the prior art described above, one of the purposes of the present invention is to provide a transmission system for an ice maker, which has the characteristics of low noise, small size, large and balanced power output.

[0008] In order to overcome at least one of the defects of the above-mentioned prior art, the second purpose of the present utility model is to provide an ice maker, which adopts the above-mentioned transmission system for ice maker. When the ice maker is working, the noise is low, the volume is small, the power output is large and balanced, and the ice making effect is good.

[0009] The technical solution adopted by the utility model to solve the problem is:

[0010] A transmission system for an ice maker, comprising a power input mechanism, a primary transmission mechanism, a secondary transmission mechanism and a power output mechanism;

[0011] The primary transmission mechanism includes a worm and a worm wheel meshing with the worm; one end of the worm is connected to the power input mechanism and is driven to rotate by the power input mechanism;

[0012] The secondary transmission mechanism comprises a sun gear, a planet carrier, a plurality of planetary gears and an external fixed inner gear ring; the sun gear is connected to the primary transmission mechanism and driven to rotate by the worm gear; the external fixed inner gear ring is coaxially sleeved on the outside of the sun gear, a plurality of planetary gears are evenly arranged on the outside of the sun gear and meshed with the sun gear respectively, the planetary gears are arranged between the sun gear and the external fixed inner gear ring and meshed with the external fixed inner gear ring respectively; the planet carrier is connected to the planetary gears and driven to rotate by the planetary gears;

[0013] The power output mechanism comprises a rotation output shaft, which is coaxially arranged with the sun gear and fixedly connected with the planet carrier.

[0014] In this solution, by adopting a structure combining a worm gear and a planetary gear, a transmission system for an ice-making machine with low noise, small size, large power output and balance is obtained.

[0015] Further, the sun gear includes a first sun gear and a second sun gear, the planet carrier includes a first planet carrier and a second planet carrier, and the planet gear includes a first planet gear and a second planet gear; the first planet gear and the second planet gear are both meshed with the outer fixed inner gear ring;

[0016] The first sun gear is coaxially fixed to the worm gear, the first planet carrier is connected to the first planet gear, and the first planet gear is arranged outside the first sun gear and meshes with the first sun gear;

[0017] The second sun gear is coaxially arranged with the first sun gear and fixedly connected to the first planet carrier, and is driven to rotate by the first planet carrier; the second planet gear is arranged outside the second sun gear and meshes with the second sun gear; the second planet carrier is connected to the second planet gear and is driven to rotate by the second planet gear;

[0018] The rotation output shaft is coaxially fixed to the second planet carrier.

[0019] Furthermore, the first planetary carrier includes a first carrier plate and a first connecting shaft, the number of the first connecting shafts matches the number of the first planetary gears, one end of the first connecting shaft is connected to the first carrier plate, and the other end is connected to the first planetary gear.

[0020] Furthermore, a first connecting hole is provided on the first frame plate, the inner diameter of the first connecting hole is adapted to the outer diameter of the first connecting shaft, the connecting end of the first connecting shaft and the first frame plate is inserted into the first connecting hole and fixedly connected, the connecting end of the first connecting shaft and the first planetary gear is inserted into the axle hole of the first planetary gear and connected, and the first planetary gear rotates around the first connecting shaft.

[0021] Furthermore, the second planetary carrier includes a second frame plate and a second connecting shaft, the number of the second connecting shafts is consistent with the number of the second planetary gears, one end of the second connecting shaft is connected to the second frame plate, and the other end is connected to the second planetary gear, and the rotating output shaft is fixed to the second frame plate and is coaxial with the second planetary carrier.

[0022] Furthermore, a second connecting hole is provided on the second frame plate, the inner diameter of the second connecting hole is adapted to the outer diameter of the second connecting shaft, the connecting end of the second connecting shaft and the second frame plate is inserted into the second connecting hole and fixedly connected, the connecting end of the second connecting shaft and the second planetary gear is inserted into the axle hole of the second planetary gear and connected, and the second planetary gear rotates around the second connecting shaft.

[0023] Furthermore, it also includes a shell, which is covered outside the secondary transmission mechanism and includes a sleeve and a front end face. The sleeve is sleeved outside the secondary transmission mechanism and the external fixed inner gear ring is fixed on the inner wall of the sleeve, and the rotating output shaft extends from the front end face.

[0024] Furthermore, internal teeth are formed on the inner wall of the sleeve to form the external fixed internal gear ring.

[0025] Furthermore, the power input mechanism includes a motor, and the output shaft of the motor is connected to one end of the worm to drive the worm to rotate.

[0026] Furthermore, the motor is a brushless motor.

[0027] An ice-making machine comprises the aforementioned transmission system for the ice-making machine.

[0028] In summary, the transmission system for an ice maker provided by the utility model has the following technical effects:

[0029] 1. By adopting a primary transmission mechanism with a worm gear structure, it is connected to the power input mechanism, so that the transmission mechanism and the power input mechanism are connected from a vertical connection to a horizontal connection, which compresses the overall height of the power system and reduces the volume of the transmission system. At the same time, the worm gear structure has low noise, stable transmission, and self-locking function.

[0030] 2. By adopting the two-stage transmission mechanism of planetary gears, the structure is compact, and the volume of the transmission system for the ice maker is further compressed, providing conditions for the final miniaturization of the ice maker. At the same time, by adopting the two-stage transmission mechanism of planetary gears, the output torque is large and balanced, and the vibration and noise are low during operation.

[0031] In summary, the ice making machine provided by the utility model has the following technical effects: the ice making machine is small in size, has low noise during operation, has stable output, and has good ice making effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of an embodiment of a transmission system for an ice-making machine of the utility model;

[0033] Figure 2 for Figure 1 Exploded diagram.

[0034] Figure 3 for Figure 1 sectional view of .

[0035] Figure 4 The utility model is a schematic diagram of the internal structure of a transmission system for an ice making machine.

[0036] Figure 5 The utility model is an exploded view of the internal structure of a transmission system for an ice making machine.

[0037] The meanings of the reference numerals are as follows:

[0038] 1. Power input mechanism;

[0039] 2. primary transmission mechanism; 21. worm wheel; 22. worm;

[0040] 3. Secondary transmission mechanism; 30. External fixed inner gear ring; 311. First sun gear; 312. First planetary gear; 313. First planet carrier; 3131. First frame plate; 3132. First connecting shaft; 321. Second sun gear; 322. Second planetary gear; 323. Second planet carrier; 3231. Second frame plate;

[0041] 3232, second connecting shaft; 301, sleeve; 302, front end surface;

[0042] 4. Power output mechanism; 41. Rotating output shaft. DETAILED DESCRIPTION

[0043] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0044] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0046] See also Figure 1 and Figure 2 , discloses a structural schematic diagram of an embodiment of a transmission system for an ice making machine of the utility model.

[0047] A transmission system for an ice maker comprises a power input mechanism 1, a primary transmission mechanism 2, a secondary transmission mechanism 3 and a power output mechanism 4.

[0048] The primary transmission mechanism 2 includes a worm 22 and a worm wheel 21 meshing with the worm 22. One end of the worm 22 is connected to the power input mechanism 1 and driven to rotate by the power input mechanism 1. The connection end of the worm 22 and the power input mechanism 1 can be fixed to the power input mechanism 1 by an external fixing structure, or can be integrally formed with the power input mechanism.

[0049] By adopting the worm gear structure, the original axial connection between the power input part and the transmission part is transformed into a lateral connection, which reduces the height of the connection structure between the power input part and the transmission part, providing conditions for obtaining a small-volume transmission system. At the same time, the worm gear structure has low noise and vibration, which can effectively reduce the volume of the transmission system for the ice maker.

[0050] Generally, the power input mechanism 1 includes a motor, which directly provides power to the transmission mechanism, and the output shaft of the motor is connected to one end of the worm 22 to drive the worm 22 to rotate. The output shaft of the motor is fixedly connected to the worm, which can be assisted by an external structure for fixed connection, or the motor shaft and the worm can be integrally formed. The worm is directly fixed to the motor shaft, which further simplifies the connection between the power input mechanism 1 and the primary transmission mechanism 2, reduces the volume of the connection part, and reduces the working noise.

[0051] When making ice, in order to improve ice-making efficiency, reduce ice-making costs, and reduce energy consumption during ice-making, the transmission system needs to have a higher mechanical energy conversion capacity. Here, the motor uses a brushless motor. With a brushless motor, the mechanical energy conversion rate of the motor output can be as high as 80%.

[0052] The secondary transmission mechanism 3 includes a sun gear, a planet carrier, a plurality of planetary gears and an external fixed inner gear ring 30. The sun gear is connected to the primary transmission mechanism 2 and driven to rotate by the worm gear 21. The external fixed inner gear ring 30 is coaxially sleeved outside the sun gear, and a plurality of planetary gears are evenly arranged outside the sun gear and meshed with the sun gear respectively. The planetary gears are arranged between the sun gear and the external fixed inner gear ring 30 and meshed with the external fixed inner gear ring 30 respectively. The planet carrier is connected to the planetary gears and driven to rotate by the planetary gears.

[0053] The secondary transmission mechanism 3 is a planetary gear structure as a whole. The primary transmission mechanism 2 transmits power to the sun gear. The rotation of the sun gear drives the planetary gear meshing with it to rotate. At the same time, the planetary gear must revolve under the action of the external fixed inner gear ring meshing with it, that is, the planetary gear rotates to its own axis and revolves around the sun gear at the same time. The planetary gear revolves, driving the planetary carrier connected to it to rotate. The planetary carrier rotates with the axis of the sun gear as the rotation axis, and the power of the secondary transmission mechanism 3 is output to the power output mechanism 4 through the planetary carrier.

[0054] The secondary transmission mechanism 3 adopts a planetary gear structure, which is compact and further reduces the volume of the transmission system for the ice maker, providing conditions for ultimately obtaining a miniaturized ice maker. At the same time, by adopting the secondary transmission mechanism of the planetary gear, the output torque is large and balanced, and the vibration and noise are low during operation.

[0055] The power output mechanism 4 includes a rotating output shaft 41, which is coaxially arranged with the sun gear and fixedly connected with the planet carrier. The planet carrier rotates with the sun gear axis as its rotation axis, driving the rotating output shaft 41 to rotate to achieve power output. The axis of the rotating output shaft 41 is coaxial with the sun gear axle.

[0056] In this solution, by adopting a structure combining the worm wheel 21, the worm 22 and the planetary gear, a transmission system for the ice maker with low noise, small size, large power output and balance is obtained.

[0057] In order to facilitate those skilled in the art to further understand the structure of the two-stage transmission mechanism 3 and obtain a transmission system with a small volume and high torque, a specific embodiment structure of the two-stage transmission mechanism 3 is proposed below.

[0058] See also Figure 3 The sun gear includes a first sun gear 311 and a second sun gear 321 , the planet carrier includes a first planet carrier 313 and a second planet carrier 323 , and the planet gear includes a first planet gear 312 and a second planet gear 322 . The first planet gear 312 and the second planet gear 322 are both meshed with the outer fixed inner gear ring 30 .

[0059] The first sun gear 311 is coaxially fixed to the worm gear 21 , the first planet carrier 313 is connected to the first planet gear 312 , and the first planet gear 312 is disposed outside the first sun gear 311 and meshes with the first sun gear 311 .

[0060] The second sun gear 321 is coaxially arranged with the first sun gear 311 and fixedly connected with the first planet carrier 313, and is driven to rotate by the first planet carrier 313. The second planetary gear 322 is arranged outside the second sun gear 321 and meshes with the second sun gear 321. The second planetary carrier 323 is connected with the second planetary gear 322 and is driven to rotate by the second planetary gear 322. The rotation output shaft 41 is coaxially fixedly connected with the second planetary carrier 323.

[0061] In the above-mentioned two-stage transmission mechanism 3 embodiment, a two-stage planetary gear structure is used to realize power transmission and transmission, and the structure design is compact, which reduces the torque on each stage of the planetary gear assembly, and can also obtain a higher output torque. Through the design of multi-stage planetary gears, the meshing force and circumferential force on each gear during operation are reduced, and the impact and vibration on the gears are reduced, so as to obtain a low-noise and small-volume transmission system for ice making machines.

[0062] In order to further compress and reduce the volume of the transmission system while ensuring the transmission of the two-stage planetary gears in the secondary transmission mechanism 3, an embodiment structure of the first planet carrier 313 and the second planet carrier 323 is provided below.

[0063] The first planet carrier 313 includes a first carrier plate 3131 and first connecting shafts 3132 . The number of the first connecting shafts 3132 matches the number of the first planetary gears 312 . One end of the first connecting shaft 3132 is connected to the first carrier plate 3131 , and the other end is connected to the first planetary gear 312 .

[0064] The first frame plate 3131 is provided with a first connection hole, and the inner diameter of the first connection hole is adapted to the outer diameter of the first connection shaft 3132. The connection end of the first connection shaft 3132 and the first frame plate 3131 penetrates into the first connection hole and is fixedly connected, and the connection end of the first connection shaft 3132 and the first planetary gear 312 penetrates into the axle hole of the first planetary gear 312 and is connected, and the first planetary gear 312 rotates around the first connection shaft 3132.

[0065] The second planetary carrier 323 includes a second frame plate 3231 and a second connecting shaft 3232. The number of the second connecting shafts 3232 matches the number of the second planetary gears 322. One end of the second connecting shaft 3232 is connected to the second frame plate 3231, and the other end is connected to the second planetary gear 322. The rotating output shaft 41 is fixedly connected to the second frame plate 3231 and is coaxial with the second planetary carrier 323.

[0066] A second connecting hole is provided on the second frame plate 3231, and the inner diameter of the second connecting hole is adapted to the outer diameter of the second connecting shaft 3232. The connecting end of the second connecting shaft 3232 and the second frame plate 3231 is inserted into the second connecting hole and fixedly connected. The connecting end of the second connecting shaft 3232 and the second planetary gear 322 is inserted into the axle hole of the second planetary gear 322 and connected. The second planetary gear 322 rotates around the second connecting shaft 3232.

[0067] The first planet carrier 313 and the second planet carrier 323 are used to install the first planetary gear 312 and the second planetary gear 322 respectively, ensuring the rotation and revolution of the first planetary gear 312 and the second planetary gear 322. At the same time, the first planet carrier 313 provides a position for the installation of the second sun gear 321. The second sun gear is installed compactly to obtain a small-volume transmission system.

[0068] In order to further reduce the volume of the transmission system and simplify the installation of the internal structure of the transmission system, the second planetary gear 322 is integrally formed with the first frame plate 3131, the first sun gear is integrally formed with the worm gear, and the rotary output shaft 41 is integrally formed with the second frame plate 3231. Alternatively, any one, two or three of the above three integrally formed structures can be selected.

[0069] In order to further reduce the noise of the transmission system, a shell for noise reduction is added to the outside of the transmission system. The shell cover is arranged outside the secondary transmission mechanism 3, and includes a sleeve 301 and a front end face 302. The sleeve 301 is sleeved outside the secondary transmission mechanism 3 and the external fixed inner gear ring 30 is fixed on the inner wall of the sleeve. The rotating output shaft 41 has a front end face 302 extending therefrom.

[0070] To further simplify the structure, internal teeth are formed on the inner wall of the sleeve 301 to form an external fixed inner gear ring 30. The external fixed inner gear ring 30 and the housing are an integrated structure, which simplifies the transmission system mechanism and the installation of the external fixed inner gear ring.

[0071] An ice-making machine comprises the aforementioned transmission system for the ice-making machine. The ice-making machine has small size, low noise during operation, stable output and good ice-making effect.

[0072] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A transmission system for an ice making machine, characterized in that: It includes a power input mechanism, a primary transmission mechanism, a secondary transmission mechanism and a power output mechanism; The primary transmission mechanism includes a worm and a worm wheel meshing with the worm; one end of the worm is connected to the power input mechanism and is driven to rotate by the power input mechanism; The secondary transmission mechanism comprises a sun gear, a planet carrier, a plurality of planetary gears and an external fixed inner gear ring; the sun gear is connected to the primary transmission mechanism and driven to rotate by the worm gear; the external fixed inner gear ring is coaxially sleeved on the outside of the sun gear, a plurality of planetary gears are evenly arranged on the outside of the sun gear and meshed with the sun gear respectively, the planetary gears are arranged between the sun gear and the external fixed inner gear ring and meshed with the external fixed inner gear ring respectively; the planet carrier is connected to the planetary gears and driven to rotate by the planetary gears; The power output mechanism comprises a rotation output shaft, which is coaxially arranged with the sun gear and fixedly connected with the planet carrier.

2. The transmission system for an ice maker according to claim 1, characterized in that: The sun gear includes a first sun gear and a second sun gear, the planet carrier includes a first planet carrier and a second planet carrier, and the planet gear includes a first planet gear and a second planet gear; the first planet gear and the second planet gear are both meshed with the outer fixed inner gear ring; The first sun gear is coaxially fixed to the worm gear, the first planet carrier is connected to the first planet gear, and the first planet gear is arranged outside the first sun gear and meshes with the first sun gear; The second sun gear is coaxially arranged with the first sun gear and fixedly connected to the first planet carrier and driven to rotate by the first planet carrier, and the second planet gear is arranged outside the second sun gear and meshes with the second sun gear; The second planet carrier is connected to the second planet gear and is driven to rotate by the second planet gear; The rotation output shaft is coaxially fixed to the second planet carrier.

3. The transmission system for an ice maker according to claim 2, characterized in that: The first planet carrier includes a first carrier plate and a first connecting shaft, the number of the first connecting shafts matches the number of the first planetary gears, one end of the first connecting shaft is connected to the first carrier plate, and the other end is connected to the first planetary gear; The second planetary carrier includes a second frame plate and a second connecting shaft, the number of the second connecting shafts is consistent with the number of the second planetary gears, one end of the second connecting shaft is connected to the second frame plate, and the other end is connected to the second planetary gear, and the rotating output shaft is fixed to the second frame plate and is coaxial with the second planetary carrier.

4. The transmission system for an ice maker according to claim 3, characterized in that: A first connecting hole is provided on the first frame plate, and the inner diameter of the first connecting hole is adapted to the outer diameter of the first connecting shaft. The connecting end of the first connecting shaft and the first frame plate is inserted into the first connecting hole and fixedly connected. The connecting end of the first connecting shaft and the first planetary gear is inserted into the axle hole of the first planetary gear and connected. The first planetary gear rotates around the first connecting shaft.

5. The transmission system for an ice maker according to claim 3, characterized in that: A second connecting hole is provided on the second frame plate, and the inner diameter of the second connecting hole is adapted to the outer diameter of the second connecting shaft. The connecting end of the second connecting shaft and the second frame plate is inserted into the second connecting hole and fixedly connected. The connecting end of the second connecting shaft and the second planetary gear is inserted into the axle hole of the second planetary gear and connected. The second planetary gear rotates around the second connecting shaft.

6. The transmission system for an ice maker according to claim 1, characterized in that: It also includes a shell, which is covered outside the secondary transmission mechanism and includes a sleeve and a front end face. The sleeve is sleeved outside the secondary transmission mechanism and the external fixed inner gear ring is fixed on the inner wall of the sleeve, and the rotating output shaft extends from the front end face.

7. The transmission system for an ice maker according to claim 6, characterized in that: Internal teeth are formed on the inner wall of the sleeve to form the external fixed internal gear ring.

8. The transmission system for an ice maker according to claim 1, characterized in that: The power input mechanism includes a motor, and the output shaft of the motor is connected to one end of the worm to drive the worm to rotate.

9. The transmission system for an ice maker according to claim 8, characterized in that: The motor is a brushless motor.

10. An ice making machine, characterized in that: The invention comprises a transmission system for an ice-making machine as claimed in any one of claims 1 to 9.

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