A solderless integrated motor and blender

Abstract

The application discloses a solderless connection integrated motor and a blender, which comprises a circuit board and a motor body, the motor body comprises a motor shell and an end cover assembly; the end cover assembly comprises an end cover, an EMC element and a flexible connecting body, the end cover is installed on the motor shell, and the EMC element is arranged outside the end cover; the flexible connecting body is inserted into the end cover and fixes an A-end pin of the EMC element on the end cover; the circuit board is inserted on the end cover, and the A-end pin of the EMC element is in conductive connection with the circuit board through the flexible connecting body; a B-end pin of the EMC element penetrates through the end cover and extends downwards and is in conductive connection with the motor shell. The solderless connection integrated motor and the blender are simple in assembly, low in cost and suitable for automatic production.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and more specifically to an integrated motor and mixer with weldless connection. Background Technology

[0002] Handheld blenders are not only versatile but also compact, making them ideal for modern kitchens. The motor is the core component of a blender; however, current motors on the market use carbon brush brackets and bearing supports to fix the rotor, and contain internal capacitors and inductors connected to the carbon brushes by solder, resulting in low assembly efficiency. Furthermore, high-power motors are prone to exceeding EMC limits due to temperature rise in their components, necessitating increased coil turns and the use of high-performance magnets to improve overall motor performance and reduce temperature rise, as well as soldering to the PCB board.

[0003] For example, in the motor disclosed in Chinese patent number CN102593997A, the terminals are welded to the conductive contacts of the circuit board. Due to the small internal space of the carbon brush bracket, assembly is difficult, and welding processes are required in production, which increases labor and time costs. The assembly process is complex and cannot be automated, making it difficult to meet the cost and safety requirements of high-power motors. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, this utility model provides an integrated motor and mixer with no welded connection, which is simple to assemble, low in cost, and suitable for automated production.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: an integrated motor without solder joints, including a circuit board and a motor body. The motor body includes a motor housing and an end cover assembly. The end cover assembly includes an end cover, an EMC component, and a flexible connector. The end cover is installed on the motor housing, and the EMC component is located outside the end cover. The flexible connector is inserted into the end cover and fixes the A-end pin of the EMC component to the end cover. The circuit board is inserted into the end cover, and the A-end pin of the EMC component is electrically connected to the circuit board through the flexible connector. The B-end pin of the EMC component extends downward through the end cover and is electrically connected to the motor housing.

[0006] This technical solution provides a solderless integrated motor. By placing the EMC component outside the end cover, away from the heat source, it can reduce capacitor temperature rise and thus solve the problem of excessive EMC component temperature rise. Moreover, the EMC component is electrically connected to the circuit board through a flexible connector, eliminating the need for soldering, reducing assembly steps, and solving the problem of complex assembly. At the same time, it eliminates the built-in capacitors and inductors of existing motors, integrating the carbon brush bracket and bearing fixing bracket into a single end cover. The circuit board can be directly inserted into the end cover, making assembly more convenient. This simplifies the assembly process and enables the motor to be assembled using automated equipment, thereby improving production efficiency and reducing production costs.

[0007] In a preferred embodiment, there are several EMC components and several flexible connectors. Several flexible connectors fix several EMC components on the end cap, and several EMC components are electrically connected to the bottom two ends of the circuit board through several flexible connectors.

[0008] This technology incorporates several EMC components, which are connected to both ends of the bottom of the circuit board to ensure the safe operation of the motor.

[0009] In a preferred embodiment, the EMC component includes a first EMC component and a second EMC component. The first EMC component is connected between the live wire and the ground wire of the motor body, and the second EMC component is connected between the neutral wire and the ground wire of the motor body to ensure the safe operation of the motor and meet the safety requirements of the motor.

[0010] In a preferred embodiment, the lower part of the flexible connector is provided with a buckle, and the end cap is provided with a slot. The lower part of the flexible connector is inserted into the slot, and the A-end pin of the EMC component is pressed against the bottom of the slot. The buckle engages with the slot to securely mount the EMC component on the end cap. In this technology, the flexible connector is provided with a buckle, which can be engaged with the slot on the end cap, thereby better securing the flexible connector and the EMC component.

[0011] In a preferred embodiment, the flexible connector is a conductor, which ensures a flexible connection between the circuit board and the EMC components and enables the circuit board and the EMC components to achieve a conductive connection.

[0012] In a preferred technical solution, the end cap is made of plastic, which has low manufacturing cost, is easy to use, and helps reduce motor costs.

[0013] In a preferred technical solution, the motor housing is made of metal, such as cast iron, cast aluminum, aluminum alloy, stainless steel, etc., which provides a stable, robust, and durable structure.

[0014] A mixer includes an integral motor with a weldless connection as described in any of the above technical solutions.

[0015] The mixer in this technology uses the aforementioned integrated motor, which is simple to assemble, can improve production efficiency, reduce production costs, and is suitable for automated production.

[0016] In a preferred embodiment, the mixer further includes a speed control knob, a transmission gear, a decorative ring, a rear shell, and a front shell. An integrated motor is housed within the shell formed by the rear and front shells. The speed control knob is located on the top of the shell and connected to a circuit board at its bottom via the transmission gear. The decorative ring is positioned between the speed control knob and the shell. The aforementioned mixer features a simple structure, convenient operation, and low production cost.

[0017] As can be seen from the above technical solution, compared with the prior art, the beneficial effects of this utility model are as follows: The integrated motor with a weldless connection provided by this utility model can reduce the temperature rise of the capacitor by placing the EMC component outside the end cover and away from the heat source, thereby solving the problem of excessive temperature rise of the EMC component; moreover, the EMC component is electrically connected to the circuit board through a flexible connector, eliminating the need for welding, reducing assembly steps, and solving the problem of complex assembly; at the same time, the existing built-in capacitor and inductor of the motor are eliminated, and the carbon brush bracket and bearing fixing bracket are integrated into an integrated end cover, and the circuit board can be directly inserted into the end cover, making assembly more convenient, simplifying the process and technology in the assembly process, and enabling the assembly of the motor through automated equipment, thereby improving production efficiency and reducing production costs.

[0018] A mixer using the aforementioned integrated motor is simple to assemble, can improve production efficiency, reduce production costs, and is suitable for automated production.

[0019] In addition, other advantages of this invention will be set forth in the description which follows, in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is an exploded structural diagram of the end cap assembly of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of the end cap assembly of this utility model;

[0023] Figure 3 This is an exploded structural diagram of the motor body of this utility model;

[0024] Figure 4 This is a schematic diagram of the overall structure of the motor body of this utility model;

[0025] Figure 5 This is an exploded view of the integrated motor of this utility model;

[0026] Figure 6 This is a schematic diagram of the overall structure of the integrated motor of this utility model;

[0027] Figure 7 This is a side view of the integrated motor of this utility model;

[0028] Figure 8 This is a circuit diagram showing the connection of the EMC components of this utility model;

[0029] Figure 9 This is an exploded structural diagram of the mixer of this utility model;

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Speed ​​control knob; 2. Transmission gear; 3. Decorative ring; 4. Rear shell; 5. Front shell; 6. Integrated motor; 7. Circuit board; 8. Motor body; 81. Motor housing; 82. Rotor; 83. End cover assembly; 831. End cover; 832. Bearing; 833. EMC component; 834. Flexible connector. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] In the description of this utility model, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means several or more.

[0034] Reference Figure 1-9 This invention describes a weldless integrated motor 6 and a mixer according to an embodiment of the present invention, the mixer being a handheld mixer.

[0035] In one embodiment, such as Figure 1-7 As shown, an integrated motor 6 without solder joints includes a circuit board 7 and a motor body 8. The motor body 8 includes a motor housing 81 and an end cap assembly 83.

[0036] The end cap assembly 83 includes an end cap 831, an EMC element 833, and a flexible connector 834. The end cap 831 is mounted on the motor housing 81, and the EMC element 833 is located on the outside of the end cap 831.

[0037] The flexible connector 834 is inserted into the end cover 831 and fixes the A-end pin of the EMC component 833 onto the end cover 831; the circuit board 7 is inserted into the end cover 831, and the A-end pin of the EMC component 833 is electrically connected to the circuit board 7 through the flexible connector 834; the B-end pin of the EMC component 833 extends downward through the end cover 831 and is electrically connected to the motor housing 81.

[0038] The circuit board 7 can be a PCB (Printed Circuit Board) for controlling the motor body 8. The flexible connector 834 can be made of a flexible conductive material, serving as a conductive connection between the A-end pin of the EMC component 833 and the circuit board 7. EMC (Electromagnetic Compatibility) refers to the ability of electronic equipment or systems to operate normally in a specific electromagnetic environment without interfering with or being interfered with by other equipment or systems. The EMC component 833 is an electromagnetic compatibility component, an electronic component used to solve electromagnetic interference emission and electromagnetic susceptibility problems. Here, the EMC component 833 can be a safety capacitor, such as a Y capacitor. The motor housing 81 contains a rotor 82, which is mounted inside the motor housing 81 via a bearing 832. The bearing 832 can be located at the bottom of the end cover 831 and connected to the shaft of the rotor 82.

[0039] Specifically, the lower part of the flexible connector 834 presses on the A-end pin of the EMC component 833, which on the one hand fixes the EMC component 833 to the end cover 831, and on the other hand contacts the A-end pin of the EMC component 833 to conduct electricity; since the upper part of the flexible connector 834 contacts the circuit board 7 inserted on the end cover 831, the A-end pin of the EMC component 833 can be electrically connected to the circuit board 7 through the flexible connector 834.

[0040] In a specific implementation, as one approach, the circuit board 7 can be inserted into a slot on the end cover 831, and the flexible connector 834 can be inserted in front of or behind the slot so that the upper part of the flexible connector 834 is in contact with the circuit board 7, thereby making the A-end pin of the EMC component 833 connected to the circuit board 7.

[0041] When assembling the aforementioned integrated motor 6, as follows Figure 1-2 As shown, firstly, the bearing 832 is installed into the end cover 831, and then the A-end pin of the EMC component 833 is fixed to the end cover 831 by inserting the flexible connector 834, thus completing the assembly of the end cover assembly 83; then, as... Figure 3-4As shown, the rotor 82 is installed into the motor housing 81, and the end cover assembly 83 is installed on the upper end of the motor housing 81 by automated equipment. At this time, the B-end pin of the EMC component 833 is pressed into the motor housing 81 and connected to the motor housing 81, forming the motor body 8; as shown Figure 5-7 As shown, the circuit board 7 is inserted into the end cover 831 and made to contact the flexible connector 834. At this time, the A-end pin of the EMC component 833 is connected to the circuit board 7, forming an integrated motor 6.

[0042] In this embodiment, there are several EMC components 833 and several flexible connectors 834. Several flexible connectors 834 fix several EMC components 833 on the end cover 831, and several EMC components 833 are electrically connected to the bottom two ends of the circuit board 7 through several flexible connectors 834.

[0043] Specifically, the bottom ends of the circuit board 7 are provided with downward protruding mounting corners. Several mounting corners are inserted into the end cover 831 and contact several flexible connectors 834 respectively, so as to realize the conductive connection with several EMC components 833.

[0044] The above embodiment uses several EMC components 833 to connect to the bottom two ends of the circuit board 7 respectively, which can ensure the safe operation of the motor.

[0045] In this embodiment, as Figure 8 As shown, the motor body 8 is motor M1, which is connected to the live wire, neutral wire, and ground wire. The EMC component 833 includes a first EMC component and a second EMC component. The first EMC component is connected between the live wire and ground wire of the motor body 8, and the second EMC component is connected between the neutral wire and ground wire of the motor body 8, ensuring the motor's operational safety and meeting safety regulations. In a specific implementation, the first EMC component is a Y capacitor C1, and the second EMC component is a Y capacitor C2.

[0046] In this embodiment, the lower part of the flexible connector 834 is provided with a buckle, and the end cover 831 is provided with a slot; the lower part of the flexible connector 834 is inserted into the slot, and the A-end pin of the EMC component 833 is pressed against the bottom of the slot, and the buckle engages with the slot, so that the EMC component 833 is fixedly installed on the end cover 831.

[0047] When the lower part of the flexible connector 834 is inserted into the slot, the buckle at the lower part will lock into the slot, making it difficult to pull out the flexible connector 834. In other words, the flexible connector 834 is fixed in the slot. At this time, the lower part of the flexible connector 834 presses the A-end pin of the EMC component 833 to the bottom of the slot, so that the EMC component 833 can be fixedly installed on the end cover 831, achieving a better fixing effect.

[0048] Specifically, the flexible connector 834 presses the A-end pin of the EMC component 833 against the bottom of the slot, which can fix the EMC component 833 onto the end cover 831; at the same time, the flexible connector 834 presses the A-end pin of the EMC component 833, thereby making it conductive with the A-end pin of the EMC component 833.

[0049] In this embodiment, the flexible connector 834 is a conductor, which ensures a flexible connection between the circuit board 7 and the EMC component 833, and because it is conductive, it enables the circuit board 7 and the EMC component 833 to achieve a conductive connection. The flexible connector 834 can be made of any conductive and bendable metal material; preferably, the flexible connector 834 is a copper sheet.

[0050] In this embodiment, the end cap 831 is made of plastic, which has low manufacturing cost, is easy to use, and helps reduce motor costs.

[0051] In this embodiment, the motor housing 81 is made of metal, such as cast iron, cast aluminum, aluminum alloy, stainless steel, etc., which provides a stable, robust, and durable structure. Preferably, the motor housing 81 is an iron cylinder.

[0052] In practice, bearing 832 can be an oil-impregnated bearing.

[0053] Among them, oil-impregnated bearings, also known as porous bearings, are sintered bodies made by powder metallurgy. They are inherently porous, and the number, size, shape, and distribution of pores can be adjusted more freely during the manufacturing process. Oil-impregnated bearings have the characteristics of low cost, vibration absorption, low noise, and no need to add lubricating oil for a long working time. They are particularly suitable for working environments that are not easy to lubricate or do not allow oil contamination.

[0054] In another embodiment, such as Figure 9 As shown, this utility model provides a mixer, which includes an integrated motor 6 with a weldless connection as in any of the above embodiments.

[0055] The aforementioned mixer is simple to assemble, can improve production efficiency, reduce production costs, and is suitable for automated production.

[0056] In this embodiment, the mixer also includes a speed control knob 1, a transmission gear 2, a decorative ring 3, a rear shell 4, and a front shell 5. An integrated motor 6 is located inside the shell formed by the rear shell 4 and the front shell 5. The speed control knob 1 is located on the top of the shell and its bottom is connected to the circuit board 7 through the transmission gear 2. The decorative ring 3 is located between the speed control knob 1 and the shell.

[0057] Among them, such as Figure 9 As shown, the integrated motor 66, rear shell 4, front shell 5, decorative ring 3, transmission gear 2 and speed control knob 1 are assembled together to form a mixer.

[0058] Specifically, the speed control knob 1 can adjust the speed of the motor body 8 through the transmission gear 2 and the control circuit board 7 to meet different stirring speed requirements.

[0059] The weldless integrated motor 6 and other components and operations of the mixer according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0060] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0061] In the description of this specification, references to the terms "embodiment," "specific embodiment," "example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example that is included in at least one embodiment or example of the present invention.

[0062] In this specification, the illustrative expressions of the terms used do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described may be combined with each other in any suitable manner in one or more embodiments or examples without interference or contradiction.

Claims

1. A weldless, integrated motor, characterized in that: It includes a circuit board (7) and a motor body (8), the motor body (8) including a motor housing (81) and an end cap assembly (83); The end cap assembly (83) includes an end cap (831), an EMC element (833), and a flexible connector (834). The end cap (831) is mounted on the motor housing (81), and the EMC element (833) is located outside the end cap (831). The flexible connector (834) is inserted into the end cover (831) and fixes the A-end pin of the EMC element (833) on the end cover (831); the circuit board (7) is inserted into the end cover (831), and the A-end pin of the EMC element (833) is electrically connected to the circuit board (7) through the flexible connector (834); the B-end pin of the EMC element (833) extends downward through the end cover (831) and is electrically connected to the motor housing (81).

2. The integrated motor with weldless connection according to claim 1, characterized in that: The number of EMC components (833) and flexible connectors (834) is several. Several flexible connectors (834) fix several EMC components (833) on the end cap (831), and several EMC components (833) are connected to the bottom ends of the circuit board (7) through several flexible connectors (834).

3. The integrated motor with weldless connection according to claim 2, characterized in that: The EMC component (833) includes a first EMC component and a second EMC component. The first EMC component is connected between the live wire and the ground wire of the motor body (8), and the second EMC component is connected between the neutral wire and the ground wire of the motor body (8).

4. A weldless integrated motor according to any one of claims 1 to 3, characterized in that: The lower part of the flexible connector (834) is provided with a buckle, and the end cap (831) is provided with a slot; The lower part of the flexible connector (834) is inserted into the slot, and the A-end pin of the EMC element (833) is pressed against the bottom of the slot. The buckle engages with the slot so that the EMC element (833) is fixedly mounted on the end cover (831).

5. The integrated motor with weldless connection according to claim 4, characterized in that: The flexible connector (834) is a conductor.

6. The integrated motor with weldless connection according to claim 1, characterized in that: The end cap (831) is made of plastic.

7. The integrated motor with weldless connection according to claim 1, characterized in that: The motor housing (81) is made of metal.

8. A mixer, characterized in that: Including the weldless integrated motor as described in any one of claims 1 to 7.

9. A mixer according to claim 8, characterized in that: It also includes a speed control knob (1), a transmission gear (2), a decorative ring (3), a rear shell (4), and a front shell (5). The integrated motor is located inside the housing formed by the rear shell (4) and the front shell (5). The speed control knob (1) is located on the top of the housing and its bottom is connected to the circuit board (7) through the transmission gear (2). The decorative ring (3) is located between the speed control knob (1) and the housing.

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