Driving structure of ice maker

Abstract

An ice maker driving structure comprises a motor, a transmission gear set, an output end and an evaporator roller, the evaporator roller comprises a left end portion (1), a right end portion (2) and a roller portion (3), the left end portion (1) is provided with a left bearing (4), the right end portion (2) is provided with a right bearing (5), and the roller portion (3) is rotatably supported on the left bearing (4) and the right bearing (5) through the two end portions. One of the two ends is provided with the output end in the circumferential direction, an input gear (6) is arranged at one end, a shell of the transmission gear set is provided with an exposed end on one side of the input gear (6) so as to expose an output gear (7), and the motor, the transmission gear set, the output gear (7) and the input gear (6) are sequentially transmitted so as to drive the roller part (3) to rotate; the ice maker driving structure is beneficial to reducing the size, and meanwhile, is beneficial to keeping the evaporator roller to continuously rotate when the ice-making blades scrape an ice layer.

Description

TECHNICAL FIELD

[0001] The utility model relates to ice maker technical field, concretely relates to an ice maker drive structure. BACKGROUND

[0002] In the electromechanical product, the motor drives the gear box as the power source is the main structure, and in the household electrical appliances, especially the small household electrical appliances, the structure volume of the power source has higher requirement. One of the ice maker for making the ice is provided with the evaporator roller, when working, the evaporator roller needs to be driven to rotate, and the evaporimeter roller is provided with the ice making blade in the circumferential direction, and the working principle of making the ice is that the evaporimeter roller rotates through the liquid, the liquid is affected by the low temperature of the outer circumferential surface of the evaporimeter roller, and gradually condenses an ice layer on the outer circumferential surface of the evaporimeter roller, when the ice layer reaches a certain thickness, the outer circumferential surface of the ice layer will be in contact with the ice making blade, and the ice making blade is scraped to obtain the ice, and when scraping, the evaporimeter roller will be subjected to the greater resistance of the ice making blade, therefore, how to keep the evaporimeter roller continuously rotating is also the problem to be solved by the ice maker drive structure. SUMMARY

[0003] The utility model wants to solve the technical problem that an ice maker drive structure is provided, which is beneficial to reducing the volume and keeping the evaporimeter roller continuously rotating when the ice making blade scrapes the ice layer.

[0004] The technical solution of the utility model is as follows: an ice maker drive structure, comprising a motor, a transmission gear set, an output end and an evaporimeter roller, the evaporimeter roller comprises a left end, a right end and a roller part fixed between the two ends, the left end is provided with a left bearing, the right end is provided with a right bearing, the roller part is rotatably supported on the left bearing and the right bearing through the two ends, the output end is arranged on the circumferential direction of one of the two ends, and the one end is provided with an input gear meshing with the output end, the housing of the transmission gear set is provided with an exposed end on the side of the input gear, the exposed end exposes the output gear of the transmission gear set as the output end, and the motor, the transmission gear set, the output gear and the input gear are sequentially driven to drive the roller part to rotate.

[0005] After the above structure is adopted, the utility model has the following advantages:

[0006] Since the housing of the transmission gear set is provided with the exposed end on the side of the input gear, the exposed end exposes the output gear of the transmission gear set as the output end, and the motor, the transmission gear set, the output gear and the input gear are sequentially driven to drive the roller part to rotate, so that the structure is simplified to reduce the volume.

[0007] Meanwhile, the left end is provided with a left bearing, and the right end is provided with a right bearing, the drum part is rotatably supported on the left bearing and the right bearing through the two ends, one of the two ends is provided with the output end in the circumferential direction, and the one end is provided with an input gear engaged with the output end, and the output gear of the output end is engaged with the input gear, thus the left bearing and the right bearing provide stable and reliable rotatable support for the evaporator drum, and the engagement transmission force between the input gear and the output gear is mainly borne, thereby facilitating the continuous rotation of the evaporator drum when the ice-making blade scrapes the ice layer.

[0008] In summary, the present disclosure is advantageous in reducing the volume and facilitating the continuous rotation of the evaporator drum when the ice-making blade scrapes the ice layer.

[0009] In some embodiments, the output gear is located at the outer end of the one end, and the bearing of the one end is arranged between the drum part and the output gear.

[0010] In some embodiments, the left end is provided with a left extension between the left bearing and the left end face of the drum part, and the right end is provided with a right extension between the right bearing and the left end face of the drum part.

[0011] In some embodiments, the transmission gear set comprises a driving gear, the output gear, and intermediate gears between the driving gear and the output gear, the driving gear is coaxially arranged on the rotating shaft of the motor, the rotating shaft of the motor, the shafts of the intermediate gears of the transmission gear set, and the shaft of the output gear are all distributed in the transverse direction and arranged in parallel, and the gears of the transmission gear set are sequentially engaged to form a flat distribution.

[0012] In some embodiments, the left housing and the right housing are both arranged in the transverse direction from the side of the motor to the side of the output end, the inner cavity formed by the left housing and the right housing is arranged with the gears, the left housing or the right housing is integrally provided with a vertical part, the motor is arranged on and supported by the vertical part, the vertical part is provided with an axial through hole, the axial through hole is arranged with a bearing, the rotating shaft of the motor is connected with the bearing, and the rotating shaft is supported and positioned by the bearing.

[0013] In some embodiments, the motor is an outer rotor motor, the outer rotor motor comprises an outer rotor and a stator, the stator is sleeved and fixed on the vertical part, the outer rotor is rotatably sleeved and matched on the stator, and the upper end of the outer rotor is connected with the rotating shaft, and the outer rotor drives the rotating shaft to rotate.

[0014] In some embodiments, the vertical part is provided with vertical protruding ribs along the circumference thereof, the stator inner circumference is provided with vertical grooves for insertion fitting with the vertical protruding ribs, the vertical part is provided with a supporting surface for mounting the circuit board at the lower end of the vertical protruding ribs, a positioning structure is arranged between the vertical part and the stator, the positioning structure positions the height of the stator fitted on the vertical part so that an installation interval is formed between the lower end surface of the stator and the supporting surface, and the circuit board is mounted in the installation interval.

[0015] In some embodiments, a plurality of vertical protruding ribs are provided along the circumference of the vertical part, and at least one vertical protruding rib is provided in a trapezoidal shape with a narrow upper end and a wide lower end, the vertical protruding rib in the trapezoidal shape positions the height of the stator so that an installation interval is formed between the lower end surface of the stator and the supporting surface.

[0016] In some embodiments, a plurality of vertical protruding ribs are provided along the circumference of the vertical part, and at least one vertical protruding rib is provided with a guide portion extending upward to the upper end of the vertical part, the guide portion is used for insertion fitting of the vertical groove.

[0017] In some embodiments, the upper end of the guide portion is provided with a relief slope. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a top view schematic diagram of a driving structure of an ice maker.

[0019] Figure 2 It is a perspective view schematic diagram of a driving structure of an ice maker from a left side view (without drawing left bearing and right bearing).

[0020] Figure 3 It is a perspective view schematic diagram of a driving structure of an ice maker from a right side view (without drawing left bearing and right bearing).

[0021] Figure 4 It is an assembly schematic diagram between an outer rotor motor and a vertical part.

[0022] Figure 5 It is a perspective view schematic diagram of a transmission gear set.

[0023] As shown in the drawings of the utility model: 1 - left end part, 2 - right end part, 3 - roller part, 4 - left bearing, 5 - right bearing, 6 - input gear, 7 - output gear, 8 - left extension section, 9 - right extension section, 10 - intermediate gear, 11 - rotating shaft, 12 - left shell, 13 - right shell, 14 - vertical part, 15 - first bearing, 16 - second bearing, 17 - outer rotor, 18 - stator, 19 - vertical protruding rib, 20 - vertical groove, 21 - supporting surface, 22 - circuit board, 23 - trapezoidal shape, 24 - relief slope, 25 - guide portion, 26 - connecting seat. DETAILED DESCRIPTION

[0024] In order to better understand the present application, various aspects of the present application will be described in greater detail below with reference to the drawings. It should be understood that these detailed description is merely a description of exemplary embodiments of the present application and is in no way intended to limit the scope of the present application.

[0025] As shown in Figures 1 to 5 , a kind of ice maker driving structure is disclosed, including motor, transmission gear set, output end and evaporator drum, evaporator drum includes left end 1, right end 2 and the drum portion 3 fixed between the two end portions, left end 1 is installed with left bearing 4, right end 2 is installed with right bearing 5, the drum portion 3 is rotatably supported on left bearing 4 and right bearing 5 by the two end portions, the output end is arranged in the circumferential direction of one of the two end portions, and the input gear 6 is arranged at the one end portion and engaged with the output end, the housing of transmission gear set is arranged to expose end on the side of input gear 6, which exposes the output gear 7 of transmission gear set as output end, motor, transmission gear set, output gear 7, input gear 6 are sequentially driven to drive the drum portion 3 to rotate.

[0026] The left bearing 4 and the right bearing 5 are used to be installed on the bearing seat of the ice maker, so that the evaporator drum is installed in the ice maker through the left bearing 4 and the right bearing 5, and the transmission gear set can be fixedly installed on the ice maker by bolts, so as to ensure the position stability between the output gear 7 and the input gear 6, and facilitate good engagement for transmission.

[0027] In some embodiments, the left end 1 and the right end 2 are both cylindrical tubes, and the drum portion 3 is also a cylindrical tube, and the left end 1 and the right end 2 are fixed on the left and right sides of the drum portion 3 respectively, and can be fixed by welding.

[0028] In some embodiments, as shown in Figure 1 , 2 , the output gear 7 is located at the outer end of the one end portion, and the bearing block of the one end portion is installed between the drum portion 3 and the output gear 7. In this example, the output gear 7 is located at the outer end of the right end 2, and the drum portion 3, the right bearing 5 and the output gear 7 are sequentially arranged along the axial direction from left to right, so that the right bearing 5 is blocked between the drum portion 3 and the output gear 7. In this way, after the right bearing 5 is installed on the bearing seat of the ice maker, a separation effect can be further formed to reduce the conduction of low temperature on the drum portion 3 to the output gear 7 and the input gear 6, thereby facilitating the mutual engagement of the output gear 7 and the input gear 6.

[0029] In some embodiments, as shown in Figure 1 , 2As shown, the left end portion 1 has a left extension section 8 located between the left bearing 4 and the left end face of the roller portion 3, and the right end portion 2 has a right extension section 9 located between the right bearing 5 and the left end face of the roller portion 3. By providing the left extension section 8 to lengthen the left end portion 1 and the right extension section 9 to lengthen the right end portion 2, the installation position of the right bearing 5 can be further away from the roller portion 3, thus reducing mutual interference.

[0030] In some embodiments, such as Figure 1 , 2 As shown in Figures 3 and 5, the transmission gear set includes a driving gear, an output gear 7, and an intermediate gear 10 between the driving gear and the output gear 7. The driving gear is coaxially mounted on the motor shaft 11. The shafts of the motor shaft 11, the intermediate gears 10 of the transmission gear set, and the output gear 7 are all distributed laterally and arranged in parallel. The gears of the transmission gear set mesh sequentially to form a flat distribution. This flat distribution helps to reduce the volume along the axial direction of the roller section 3. In addition, the motor can be positioned away from the roller section 3 to reduce mutual interference.

[0031] In this example, the drive gear is integrally mounted on the rotating shaft 11, so that the drive gear does not need to be assembled with the rotating shaft 11, but the drive gear is obtained by machining the rotating shaft 11.

[0032] Specifically, in this example, such as Figures 1 to 5 As shown, the transmission gear set also includes a left housing 12 and a right housing 13. Both the left housing 12 and the right housing 13 are arranged laterally from the motor side to the output end side. The gears are installed in the inner cavity formed by the upper and lower assembly of the left housing 12 and the right housing 13. The left housing 12 or the right housing 13 is integrally provided with a vertical part 14. The motor is mounted on the vertical part 14 and supported by the vertical part 14. The vertical part 14 is provided with an axial through hole. The axial through hole is used to install a first bearing 15 and a second bearing 16. The motor shaft 11 is connected to the first bearing 15 and the second bearing 16. The shaft 11 is supported and positioned by the first bearing 15 and the second bearing 16. This better ensures the parallelism of the motor shaft 11 and the coaxially arranged drive gear relative to the next stage gear. In other words, by adopting the technical solution of this disclosure, it is beneficial to avoid the skewing of the motor shaft 11 and the coaxially arranged drive gear during mass production. Therefore, it is beneficial to ensure that the drive gear driven by the motor shaft 11 maintains good meshing with the next stage gear. At the same time, due to the function of the vertical part 14 and the bearing, the assembly difficulty is also reduced, that is, the process of repeated correction and locking to avoid the skewing in the prior art is eliminated, which is beneficial to the convenience of assembly.

[0033] Furthermore, such as Figure 4As shown, the motor adopts an outer rotor motor, which comprises an outer rotor 17 and a stator 18. The stator 18 is fixedly sleeved on the vertical part 14, and the outer rotor 17 is rotatably sleeved on the stator 18. The upper end of the outer rotor 17 is connected with the rotating shaft 11, and the outer rotor 17 drives the rotating shaft 11 to rotate. In this way, the structure is more compact.

[0034] Further, as shown in Figure 4 the vertical part 14 is provided with vertical protruding ribs 19 along the circumference thereof. The inner circumference of the stator 18 is provided with vertical grooves 20 which are insertedly fitted with the vertical protruding ribs 19. The vertical part 14 is provided with a support surface 21 at the lower end of the vertical protruding ribs 19 for mounting a circuit board 22. A positioning structure is provided between the vertical part 14 and the stator 18 for positioning the height of the stator 18 sleeved on the vertical part 14 so as to form a mounting interval between the lower end surface of the stator 18 and the support surface 21, and the circuit board 22 is mounted in the mounting interval. In this way, the circuit board 22 is more conveniently mounted, and the circuit board 22 located in the mounting interval is also provided with certain protection.

[0035] As shown in Figure 4 the support surface 21 is further provided with a connecting seat 26. When the circuit board 22 is mounted on the support surface 21, the circuit board 22 and the connecting seat 26 can be fixed to each other by screws. The number of the connecting seat 26 is one or more.

[0036] In addition, as shown in Figure 4 the vertical part 14 is provided with a plurality of vertical protruding ribs 19 along the circumference thereof, and at least one of the vertical protruding ribs 19 is provided as a trapezoid 23 which is narrow at the upper end and wide at the lower end. The vertical protruding rib 19 of the trapezoid 23 positions the height of the stator 18 so as to form a mounting interval between the lower end surface of the stator 18 and the support surface 21. In this way, the structure is simple and the positioning is convenient.

[0037] In addition, as shown in Figure 4 the vertical part 14 is provided with a plurality of vertical protruding ribs 19 along the circumference thereof, and at least one of the vertical protruding ribs 19 is provided with a guide portion 25 which extends upwardly to the upper end of the vertical part 14. The guide portion 25 is used for the insertion fitting of the vertical groove 20. In this way, in the case of a plurality of vertical protruding ribs 19, the guide portion 25 is first insertedly fitted with the vertical groove 20, and then the other vertical protruding ribs 19 correspond to the approximate positions of the other vertical grooves 20, so that the stator 18 is conveniently and quickly mounted on the vertical part 14.

[0038] Further, as shown in Figure 4 the upper end of the guide portion 25 is provided with a clearance inclined surface 24. In this way, the upper end surface of the guide portion 25 is prevented from colliding with the lower end of the stator 18 during the mounting, so as to avoid assembly problems, i.e. it is beneficial to more easily mount the stator 18 by the fitting of the vertical groove 20 and the guide portion 25.

[0039] The above only is the embodiment of the utility model for example, therefore, the equivalent change or modification of the structure, feature and principle of the utility model patent protection scope is included in the utility model patent protection scope.

Claims

1. A drive structure for an ice maker, comprising a motor, a transmission gear set, an output end, and an evaporator drum, characterized in that: The evaporator drum includes a left end (1), a right end (2), and a drum section (3) fixed between the two ends. A left bearing (4) is installed on the left end (1), and a right bearing (5) is installed on the right end (2). The drum section (3) is rotatably supported on the left bearing (4) and the right bearing (5) through the two ends. The output end is circumferentially arranged at one of the two ends, and an input gear (6) meshing with the output end is provided at the one end. The housing of the transmission gear set has an exposed end on the side of the input gear (6), which exposes the output gear (7) of the transmission gear set as the output end. The motor, transmission gear set, output gear (7), and input gear (6) are sequentially driven to drive the drum section (3) to rotate.

2. The ice maker drive structure according to claim 1, characterized in that: The output gear (7) is located at the outer end of one of the ends, and the bearing installed at that end is positioned between the roller (3) and the output gear (7).

3. The ice maker drive structure according to claim 1, characterized in that: The left end (1) has a left extension section (8) between the left end face of the left bearing (4) and the left end face of the roller (3), and the right end (2) has a right extension section (9) between the right bearing (5) and the left end face of the roller (3).

4. The ice maker drive structure according to claim 1, 2, or 3, characterized in that: The transmission gear set includes a drive gear and the output gear (7) and an intermediate gear (10) between the drive gear and the output gear (7). The drive gear is coaxially arranged on the motor shaft (11). The shafts of the motor shaft (11), the intermediate gears (10) of the transmission gear set, and the output gear (7) are all distributed laterally and arranged in parallel. The gears of the transmission gear set mesh in sequence to form a flat distribution.

5. The ice maker drive structure according to claim 4, characterized in that: It also includes a left housing (12) and a right housing (13). Both the left housing (12) and the right housing (13) are arranged to extend laterally from the motor side to the output end side. The gears are installed in the inner cavity formed by the left housing (12) and the right housing (13) assembled vertically. The left housing (12) or the right housing (13) is integrally provided with a vertical part (14). The motor is installed on the vertical part (14) and supported by the vertical part (14). The vertical part (14) is provided with an axial through hole. The axial through hole is installed with a bearing. The motor shaft (11) is connected to the bearing. The shaft (11) is supported and positioned by the bearing.

6. The ice maker drive structure according to claim 5, characterized in that: The motor is an external rotor motor, which includes an external rotor (17) and a stator (18). The stator (18) is fixed on the vertical part (14). The external rotor (17) is rotatably fitted on the stator (18). The upper end of the external rotor (17) is connected to the rotating shaft (11). The rotation of the external rotor (17) drives the rotating shaft (11) to rotate.

7. The ice maker drive structure according to claim 6, characterized in that: The vertical part (14) is provided with a vertical protruding rib (19) in the circumference. The stator (18) is provided with a vertical groove (20) that is inserted and matched with the vertical protruding rib (19) in the inner circumference. The vertical part (14) is provided with a support surface (21) for mounting the circuit board (22) at the lower end of the vertical protruding rib (19). A positioning structure is provided between the vertical part (14) and the stator (18). The positioning structure positions the height of the stator (18) mounted on the vertical part (14) so ​​that an installation gap is formed between the lower end surface of the stator (18) and the support surface (21). The circuit board (22) is installed in the installation gap.

8. The ice maker drive structure according to claim 7, characterized in that: Multiple vertical protruding ribs (19) are provided along the circumference of the vertical part (14), and at least one of the vertical protruding ribs (19) is set as a trapezoid (23) that is narrow at the top and wide at the bottom. The vertical protruding rib (19) of the trapezoid (23) positions the height of the stator (18) so that an installation gap is formed between the lower end face of the stator (18) and the support surface (21).

9. The ice maker drive structure according to claim 7, characterized in that: A plurality of vertical protruding ribs (19) are provided along the circumference of the vertical portion (14), and at least one of the vertical protruding ribs (19) is provided with a guide portion (25) extending upward to the upper end of the vertical portion (14), the guide portion (25) being used for insertion and engagement with the vertical groove (20).

10. The ice maker drive structure according to claim 9, characterized in that: The upper end of the guide section (25) is provided with a clearance ramp (24).

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