Motor dual-output structure and motor product

Abstract

The utility model relates to the technical field of motor products, in particular to a motor double-output structure and a motor product, which comprise a fixed support arranged at the top of a motor, an inner gear ring fixed at the top of the fixed support, a transmission mechanism arranged in the inner gear ring and a coupler arranged in the middle of the top of the inner gear ring, an output shaft of the motor upwards penetrates through the fixing support and is in transmission connection with the coupler through a transmission mechanism. The coupler comprises an inner coupler body and an outer coupler body arranged on the outer side of the inner coupler body in a sleeving mode. According to the double-output structure of the motor, higher rotating speed can be transmitted through the inner coupling fixed at the top of the output shaft of the motor, and the rotating speed can be reduced and the torque can be amplified and output through the outer coupling in speed reduction transmission connection with the planetary gear, so that one motor can output two different rotating speeds, different functions can be realized, and the double-output structure of the motor is suitable for popularization and application. The structure is simple and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of motor products, and in particular to a motor dual-output structure and motor products. Background Art

[0002] In recent years, with the continuous development of the home appliance industry, small appliances have become an indispensable part of people's lives. Some common small appliances include juicers, food processors, blenders, and wall breakers, all of which use vertically placed motors to stir or break food in containers.

[0003] Currently, there are motors on the market with and without reduction gearboxes. When the motors without reduction gearboxes rotate at low speeds, there will be problems such as insufficient output torque and severe heat generation. When the motors with reduction gearboxes rotate at high speeds, there will be abnormal noise.

[0004] Chinese utility model patent application number 201911095314.3 discloses a high- and low-speed dual-output motor and its food processor, comprising a DC motor, a reduction output mechanism, and a reduction switching assembly. An inner coupling is mounted on the top of the output shaft; the reduction output mechanism comprises a lower sun gear, a lower planetary gear set, an upper sun gear, an upper planetary gear set, and an outer coupling; the reduction switching assembly comprises a reduction sleeve, on which a transmission wedge is mounted; the DC motor has two different speed outputs: high and low. The high-speed output is directly output to the inner coupling through the output shaft, while the low-speed output is output through the reduction output mechanism, allowing the DC motor to maintain sufficient torque. Although the motor in this patent can achieve high- and low-speed dual output, it uses two sets of planetary gear sets, resulting in a complex structure and high cost. Summary of the Invention

[0005] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a motor dual-output structure and motor products.

[0006] The purpose of the utility model is achieved through the following technical solutions: a motor dual-output structure, comprising a fixed bracket installed on the top of the motor, an inner gear ring fixed on the top of the fixed bracket, a transmission mechanism installed inside the inner gear ring, and a coupling installed in the middle of the top of the inner gear ring. The output shaft of the motor passes through the fixed bracket upward and is connected to the coupling through the transmission mechanism. The coupling comprises an inner coupling and an outer coupling sleeved on the outside of the inner coupling. The top of the output shaft of the motor is fixedly connected to the inner coupling. A circular groove is opened in the middle of the fixed bracket. A turntable is rotatably connected in the circular groove. The turntable and the outer coupling are fixedly connected by multiple mounting columns. There are also multiple rotating shafts evenly distributed between the turntable and the outer coupling. The transmission mechanism comprises a sun gear sleeved on the output shaft of the motor and multiple planetary gears sleeved on each rotating shaft respectively. The inner sides of the multiple planetary gears are respectively meshed with the sun gear, and the outer sides of the multiple planetary gears are respectively meshed with the inner side of the inner gear ring.

[0007] Furthermore, a mounting cap is fixed inside the inner coupling, an inner side of the mounting cap is provided with an internal thread, an outer thread is provided on the top of the output shaft of the motor, and the top of the output shaft of the motor is screwed into the mounting cap.

[0008] Furthermore, the mounting posts include a plurality of first mounting posts in a circular array at the bottom of the outer coupling and a plurality of second mounting posts in a circular array at the top of the turntable, and the first mounting posts are fixedly connected to the second mounting posts by screws.

[0009] Furthermore, the bottom annular array of the external coupling has multiple first rotation grooves, and the top of the turntable is provided with a second rotation groove corresponding to the position of each first rotation groove. The tops of multiple rotating shafts are rotatably connected to the corresponding first rotation grooves, and the bottoms of multiple rotating shafts are rotatably connected to the corresponding second rotation grooves.

[0010] Furthermore, an annular protrusion is fixed to the outer side wall of the bottom of the external coupling, and the outer side of the annular protrusion abuts against the top inner edge of the inner gear ring.

[0011] Furthermore, an annular brim is protruding outward from the bottom outer edge of the annular protrusion, and the annular brim abuts against the top inner side wall of the inner gear ring. A first gasket is sandwiched between the annular brim and the top inner side wall of the inner gear ring.

[0012] Furthermore, a second gasket is provided at the connection between the inner side of the bottom of the turntable and the circular groove.

[0013] Another object of the present invention is achieved through the following technical solution: a motor product, which includes the motor dual-output structure described above.

[0014] The beneficial effects of the present invention are as follows: the dual-output structure of the motor of the present invention can transmit a higher speed through the inner coupling fixed on the top of the output shaft of the motor, and the outer coupling connected by a planetary gear reduction transmission can reduce the speed and amplify the torque output, thereby realizing one motor outputting two different speeds, realizing different functions, having a simple structure and being easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the present utility model.

[0016] Figure 2 It is a top view of the present utility model.

[0017] Figure 3 It is a three-dimensional exploded view of the present utility model.

[0018] Figure 4 It is a cross-sectional view of the present utility model.

[0019] Figure 5 It is a three-dimensional diagram of the transmission mechanism and coupling of the present utility model.

[0020] Figure 6 It is a three-dimensional exploded view of the transmission mechanism and coupling of the utility model.

[0021] Figure 7 It is a three-dimensional diagram of the fixing bracket of the utility model.

[0022] Figure 8 It is a three-dimensional diagram of the external coupling of the present utility model.

[0023] The figures are marked as follows: motor 1, output shaft 11, external thread 111, fixed bracket 2, water receiving trough 21, circular groove 22, water flow channel 23, downpipe 24, inner ring gear 3, first annular side wall 31, first annular groove 32, first notch 33, annular boss 34, second annular side wall 35, second annular groove 36, second notch 37, annular protrusion 38, transmission mechanism 4, sun gear 41, planetary gear 42, coupling 5, inner coupling 51, mounting cap 511, outer coupling 52, first mounting column 521, first rotating groove 522, annular protrusion 523, annular brim 524, first gasket 525, turntable 53, second mounting column 531, second rotating groove 532, second gasket 533, mounting column 54, screw 541, rotating shaft 55, rain cover 6, cylindrical portion 61, annular rain shield 62. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of those skilled in the art, the following embodiments and accompanying drawings are provided. Figure 1-8To further illustrate the present invention, the contents mentioned in the implementation manner are not intended to limit the present invention.

[0025] See Figure 1-8 A motor dual-output structure includes a fixed bracket 2 mounted on the top of the motor 1, an inner gear ring 3 fixed to the top of the fixed bracket 2, a transmission mechanism 4 mounted inside the inner gear ring 3, and a coupling 5 mounted in the middle of the top of the inner gear ring 3. The output shaft of the motor 1 passes through the fixed bracket 2 upward and is connected to the coupling 5 through the transmission mechanism 4. The coupling 5 includes an inner coupling 51 and an outer coupling 52 sleeved on the outside of the inner coupling 51. The top of the output shaft 11 of the motor 1 is fixedly connected to the inner coupling 51. The middle part of the fixed bracket 2 is provided with a A circular groove 22, in which a turntable 53 is rotatably connected, the turntable 53 and the outer coupling 52 are fixedly connected by multiple mounting columns 54, and multiple rotating shafts 55 are evenly distributed between the turntable 53 and the outer coupling 52. The transmission mechanism 4 includes a sun gear 41 sleeved on the output shaft 11 of the motor 1 and multiple planetary gears 42 respectively sleeved on each rotating shaft 55, the inner sides of the multiple planetary gears 42 are respectively engaged with the sun gear 41, and the outer sides of the multiple planetary gears 42 are respectively engaged with the inner side of the inner ring gear 3.

[0026] The dual-output structure of the motor of the present invention can transmit a higher speed through the inner coupling 51 fixed on the top of the output shaft 11 of the motor 1. The outer coupling 52 connected by the planetary gear 42 can reduce the speed and amplify the torque output, thereby realizing one motor 1 to output two different speeds and realize different functions. It has a simple structure and is easy to use.

[0027] In this embodiment, a mounting cap 511 is fixed inside the inner coupling 51. An internal thread (not shown) is formed on the inner side of the mounting cap 511. An external thread 111 is formed on the top of the output shaft 11 of the motor 1. The top of the output shaft 11 of the motor 1 is screwed into the mounting cap 511. The above structure facilitates the installation and fixation of the inner coupling 51.

[0028] In this embodiment, the mounting posts 54 include a plurality of first mounting posts 521 arranged in an annular array at the bottom of the outer coupling 52 and a plurality of second mounting posts 531 arranged in an annular array at the top of the turntable 53. The first mounting posts 521 and the second mounting posts 531 are fixedly connected by screws 541. Three mounting posts 42 are used in this embodiment. This arrangement facilitates assembly of the outer coupling 52 and the turntable 53 to form a planetary gear carrier.

[0029] In this embodiment, the outer coupling 52 has a plurality of first rotation slots 522 in a circular array at the bottom. A second rotation slot 532 is defined at the top of the turntable 53, corresponding to each first rotation slot 522. The tops of the plurality of rotation shafts 55 are rotationally connected to the corresponding first rotation slots 522, while the bottoms of the plurality of rotation shafts 55 are rotationally connected to the corresponding second rotation slots 532. This embodiment employs three rotation shafts 55, and accordingly, three planetary gears 42. This structural arrangement facilitates the rotation of the planetary gears 42, thereby driving the rotation of the planetary gear carrier formed by the outer coupling 52 and the turntable 53. The outer coupling 52 reduces the rotational speed and amplifies the torque output.

[0030] In this embodiment, an annular projection 523 is fixed to the bottom outer wall of the outer coupling 52, and the outer side of the annular projection 523 abuts against the top inner edge of the inner gear ring 3. The provision of the annular projection 523 facilitates the assembly of the outer coupling 52 and the inner gear ring 3.

[0031] In this embodiment, an annular brim 524 is provided on the bottom outer edge of the annular projection 523. The annular brim 524 abuts against the top inner sidewall of the inner gear ring 3. A first gasket 525 is sandwiched between the annular brim 524 and the top inner sidewall of the inner gear ring 3. The provision of the first gasket 525 facilitates the rotation of the outer coupling 52.

[0032] In this embodiment, a second gasket 533 is provided at the connection between the inner side of the bottom of the rotating disk 53 and the circular groove 22. The above-mentioned structure facilitates the rotation of the rotating disk 53.

[0033] When the motor 1 is placed vertically, in order to improve the waterproof effect of the motor 1, a water receiving groove 21 is provided on one side of the fixed bracket 2, and a first annular side wall 31 is protruding upward on the top outer edge of the inner ring 3. A first annular groove 32 for storing water is formed between the first annular side wall 31 and the outer wall of the coupling 5. A first notch 33 is provided on the first annular side wall 31 at a position corresponding to the water receiving groove 21, and a water flow channel 23 connected to the water receiving groove 21 is provided on the circular groove 22 at a position corresponding to the water receiving groove 21. By arranging a water receiving groove 21 on one side of the fixed bracket 2, a first annular groove 32 with a first notch 33 is adopted on the top of the inner ring 3, and external water stains flow into the water receiving groove 21 from the first notch 33 through the first annular groove 32. By opening a water flow channel 23 in the circular groove 22 in the middle of the fixed bracket 2, the water stains in the middle circulate internally through the circular groove 22 and flow into the water receiving groove 21 from the water flow channel 23, thereby achieving a waterproof effect. The structure is simple and easy to use. It is suitable for single-output or dual-output motors and can be widely used in vertical motor products such as juicers, food processors, blenders and wall breakers.

[0034] A hollow annular boss 34 is fixed to the outer edge of the bottom of the inner gear ring 3. The bottom of the annular boss 34 is fixed to the top of the fixed bracket 2. A second annular sidewall 35 protrudes upward from the outer edge of the top of the annular boss 34. A second annular groove 36 for storing water is formed between the second annular sidewall 35 and the outer wall of the inner gear ring 3. A second notch 37 is formed in the second annular sidewall 35 at a position corresponding to the water receiving trough 21. Specifically, the annular boss 34 is integrally formed with the inner gear ring 3. By adopting the second annular groove 36 and the second notch 37, external water stains can also flow into the water receiving trough 21 through the second annular groove and the second notch 37, thereby enhancing the waterproof effect.

[0035] An annular protrusion 38 is protruded upwardly from the inner edge of the top of the inner gear ring 3. The provision of the annular protrusion 38 can reduce the flow of water stains into the inner gear ring 3.

[0036] A rain shield 6 is sleeved onto the output shaft 11 of the motor 1, corresponding to the interior of the inner ring gear 3. The rain shield 6 comprises a cylindrical portion 61 sleeved onto the output shaft 11 of the motor 1 and an annular rain shield 62 fixed to the top of the cylindrical portion 61. The top surface of the annular rain shield 62 is inclined. The rain shield 6 prevents water from flowing into the interior of the motor 1 through the gap between the output shaft 11 of the motor 1 and the fixing bracket 2.

[0037] The bottom surface of the water flow channel 23 is tilted. Specifically, the bottom surface of the water flow channel 23 is tilted from the inside to the outside and from the top to the bottom. The above structure is convenient for water stains to flow outward.

[0038] The bottom surface of the first annular groove 32 is tilted. Specifically, the bottom surface of the first annular groove 32 is tilted from inside to outside and from top to bottom. The above structure is convenient for water stains to flow outward.

[0039] The bottom of the water receiving trough 21 is connected with a downpipe 24. The downpipe 24 can be connected to a pipeline for collecting water stains.

[0040] A motor product, comprising the above-mentioned motor dual-output structure. The motor product referred to in the present invention may be a juicer, a food processor, a blender, a wall-breaking machine, etc., or other motor products having a motor.

[0041] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present invention is within the scope of protection of the present invention.

Claims

1. A motor dual-output structure, comprising a fixed bracket mounted on the top of the motor, an inner gear ring fixed to the top of the fixed bracket, a transmission mechanism mounted inside the inner gear ring, and a coupling mounted in the middle of the top of the inner gear ring. The output shaft of the motor passes upward through the fixed bracket and is connected to the coupling through the transmission mechanism. The structure is characterized by: The coupling includes an inner coupling and an outer coupling sleeved on the outside of the inner coupling. The top of the output shaft of the motor is fixedly connected to the inner coupling. A circular groove is opened in the middle of the fixed bracket. A turntable is rotatably connected in the circular groove. The turntable and the outer coupling are fixedly connected by multiple mounting columns. There are also multiple rotating shafts evenly distributed between the turntable and the outer coupling. The transmission mechanism includes a sun gear sleeved on the output shaft of the motor and multiple planetary gears sleeved on each rotating shaft respectively. The inner sides of the multiple planetary gears are respectively meshed with the sun gear, and the outer sides of the multiple planetary gears are respectively meshed with the inner sides of the inner gear ring.

2. The motor dual output structure according to claim 1, characterized in that: A mounting cap is fixed inside the inner coupling, an inner side of the mounting cap is provided with an internal thread, an outer thread is provided on the top of the output shaft of the motor, and the top of the output shaft of the motor is screwed into the mounting cap.

3. The motor dual output structure according to claim 1, characterized in that: The mounting posts include a plurality of first mounting posts arranged in an annular array at the bottom of the outer coupling and a plurality of second mounting posts arranged in an annular array at the top of the turntable. The first mounting posts are fixedly connected to the second mounting posts by screws.

4. The motor dual output structure according to claim 1, characterized in that: The bottom annular array of the external coupling has multiple first rotation grooves, and the top of the turntable is provided with a second rotation groove corresponding to each first rotation groove. The tops of the multiple rotating shafts are rotatably connected to the corresponding first rotation grooves, and the bottoms of the multiple rotating shafts are rotatably connected to the corresponding second rotation grooves.

5. The motor dual output structure according to claim 1, characterized in that: An annular protrusion is fixed to the outer side wall of the bottom of the outer coupling, and the outer side of the annular protrusion abuts against the top inner edge of the inner gear ring.

6. The motor dual output structure according to claim 1, characterized in that: An annular brim is protruding outward from the bottom outer edge of the annular protrusion, and the annular brim abuts against the top inner side wall of the inner gear ring. A first gasket is sandwiched between the annular brim and the top inner side wall of the inner gear ring.

7. The motor dual-output structure according to claim 1, characterized in that: A second gasket is provided at the connection between the inner side of the bottom of the turntable and the circular groove.

8. A motor product, characterized in that: The motor product includes the motor dual-output structure described in any one of claims 1-7.

Images