Motor frame assembly

Abstract

The utility model provides a motor frame assembly, which comprises a swing frame, the swing frame is integrated and comprises a fixed part, a swing part and two elastic sheets, the fixed part, the swing part and the two elastic sheets are mutually connected, the two elastic sheets are respectively arranged on the left side and the right side of the swing frame, the fixed part and the swing part are spaced up and down, and the fixed part is arranged below the swing part. The elastic piece is arranged between the fixed part and the swing part, and the upper end and the lower end of the elastic piece are embedded in the swing part and the fixed part respectively and fixedly connected with the swing part and the fixed part; the swing part is used for installing moving parts such as a driving rod, the fixed part is used for installing the stator assembly, the stator assembly is located in the middle of the swing frame, and the elastic piece is used for achieving relative swing of the swing part and the fixed part; the elastic sheet is directly and fixedly connected after being embedded into the swing part and the fixed part, so that integrated production of the swing frame is realized, the swing frame does not need to be assembled in the subsequent production process of the motor, and only simple assembly and finally fastening through screws are needed, and the assembly operation is greatly simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and particularly relates to a motor frame assembly. Background Art

[0002] In electric personal care devices such as shavers and hair clippers, the blades need to move reciprocally, so a reciprocating motor is required. After the motor is powered on, the coil assembly generates a magnetic field and continuously changes the direction of the magnetic field, thereby driving a swing seat with the ability to return to the original position to swing. The swing seat drives the blade to move through a drive rod. A magnet is provided in the swing seat, and the magnetic field switches between the positive and negative directions in sequence. When under the action of the positive magnetic field, the swing seat swings in one direction. When the positive magnetic field ends and changes to the negative magnetic field, the swing seat immediately returns to the original position and continues to swing in the opposite direction. When it switches to the positive magnetic field again, the swing seat swings in the first direction again, and swings reciprocally continuously to complete the work.

[0003] The existing motors of this type are small in volume but have a large number of parts. Generally, they include a swing seat for installing the drive rod, a fixed seat for installing the coil assembly, an outer bracket assembly for binding the swing seat, the fixed seat, and the coil assembly, and several elastic pieces. The elastic pieces need to be connected by screws, and the elastic pieces also need to be connected to the fixed seat and the swing seat respectively by screws. The outer bracket assembly has multiple parts, and the outer bracket assembly itself also needs to be connected by screws and also needs to be connected to the fixed seat. The assembly operation is very cumbersome and complex. Coupled with the small volume of the parts, the assembly difficulty is further increased. Summary of the Invention

[0004] In order to solve the above technical problems, the utility model provides a motor frame assembly, which includes a swing frame. The swing frame is integrally formed and includes a fixed part, a swing part, and two elastic pieces that are connected to each other. The two elastic pieces are respectively located on the left and right sides of the swing frame. The fixed part and the swing part are spaced up and down, and the fixed part is located below the swing part. The elastic pieces are arranged between the fixed part and the swing part, and the upper and lower ends of the elastic pieces are respectively embedded in the swing part and the fixed part and are fixedly connected to the swing part and the fixed part. The swing part is used for installing moving parts such as a drive rod, the fixed part is used for installing a stator assembly, and the stator assembly will be located in the middle part of the swing frame. The elastic pieces are used to realize the relative swing between the swing part and the fixed part. Regarding the swing frame as a whole, after the elastic pieces are embedded in the swing part and the fixed part, they are directly fixedly connected to realize the integrated production of the swing frame. In the subsequent production process of the motor, there is no need to assemble the swing frame anymore. Only simple assembly and then fastening with screws are required, which greatly simplifies the assembly operation, makes the assembly production more convenient and simple, and has higher efficiency.

[0005] The technical solution of the utility model is realized as follows:

[0006] A motor frame assembly includes a swing frame. The swing frame includes a fixed part, a spring piece, and a swing part. There is one such spring piece on each of the left and right sides of the swing frame. The fixed part and the swing part are arranged at an upper and lower interval, and the fixed part is located below the swing part. The spring piece is arranged between the fixed part and the swing part. The upper end of the spring piece is embedded in the swing part and fixedly connected to the swing part, and the lower end of the spring piece is embedded in the fixed part and fixedly connected to the fixed part. The spring piece is configured to achieve the relative swing between the swing part and the fixed part.

[0007] In this solution, the swing part is used to install moving components, such as a drive rod. The fixed part is used to install the stator assembly, and the stator assembly will be located in the middle part of the swing frame. The swing part located in the upper part, the spring piece located in the left part, the fixed part located in the lower part, and the spring piece located in the right part are fixedly connected to jointly form an integrated swing frame. Regarding the swing frame as a whole, after the spring piece is embedded into the swing part and the fixed part, it is directly fixedly connected to achieve the integrated production of the swing frame. During the subsequent production process of the motor, there is no need to assemble the swing frame anymore. Only simple assembly is required and finally tightened with screws, which greatly simplifies the assembly operation, makes the assembly production more convenient and simple, and has higher efficiency. Due to the integrated structure of the swing frame in this solution, there is a huge difference in the production concept from the prior art, omitting a large number of cumbersome fastening operations on the swing frame, which greatly improves the production and assembly efficiency.

[0008] Preferably, the fixed part, the spring piece, and the swing part are integrally formed. When injecting the fixed part and the swing part, the spring piece is injected together to achieve integral forming.

[0009] Preferably, it further includes an outer frame. The outer frame is sleeved on the swing frame and connected to the fixed part. The outer frame can be connected to the fixed part by screws.

[0010] Preferably, the outer frame includes a seat part, a front blocking part, and a rear blocking part. The front blocking part and the rear blocking part are arranged at a front and rear interval, and both the front blocking part and the rear blocking part are provided on the lower surface of the seat part and extend downward. The swing frame is located between the front blocking part and the rear blocking part.

[0011] Preferably, the outer frame is integrally formed. In the case where the outer frame is integrally formed and the swing frame is also integrally formed, after the two are assembled and positioned, they can be directly tightened with screws. All the steps for assembling the outer frame itself and the fastening screws, as well as the steps for assembling the swing frame itself and the fastening screws in the prior art are omitted, greatly improving the production and assembly efficiency.

[0012] Preferably, a vertical slot is formed in the middle of the spring piece. The slot does not penetrate the upper and lower ends of the spring piece. The upper and lower ends of the spring piece can be used to connect the swing part and the fixed part. The existence of the slot is beneficial to deformation while reducing the noise generated by deformation.

[0013] Preferably, the swinging part is convexly provided with a swinging extension seat upwards, a driving rod is inserted on the swinging extension seat, and the swinging part and the swinging extension seat are integrally formed. When producing the swinging frame, the driving rod is also installed on the swinging extension seat together. Therefore, the swinging part, the swinging extension seat and the driving rod are integrally formed.

[0014] Preferably, the swinging part, the fixing part and the two elastic pieces are integrally formed. The swinging part and the fixing part are injection-molded. When they are injection-molded, both ends of the two elastic pieces are injection-molded into the swinging part and the fixing part together, so as to achieve integral forming.

[0015] The design starting point, concept and beneficial effects of the present utility model adopting the above technical solution are as follows:

[0016] In this solution, the swinging part is used to install moving components, such as the driving rod, and the fixing part is used to install the stator assembly, and the stator assembly will be located in the middle part of the swinging frame; the swinging part located in the upper part, the elastic piece located in the left part, the fixing part located in the lower part and the elastic piece located in the right part are fixedly connected to jointly form an integrated swinging frame; regarding the swinging frame as a whole, after the elastic piece is embedded into the swinging part and the fixing part, it is directly fixedly connected to realize the integrated production of the swinging frame. During the subsequent production process of the motor, there is no need to assemble the swinging frame anymore, and only simple assembly and finally fastening with screws are required, which greatly simplifies the assembly operation, makes the assembly production more convenient and simple, and has higher efficiency; due to the integrated structure of the swinging frame in this solution, there is a huge difference in the production concept from the prior art, and a large number of cumbersome fastening operations on the swinging frame are omitted, greatly improving the production and assembly efficiency.

[0017] The single-pendulum motor produced by using this motor frame assembly has the following advantages compared with the motor with a double-swinging rod structure:

[0018] The motor with a double-swinging rod structure correspondingly has two swinging seats. When the two swinging rods move, the two swinging rods move reciprocally in a staggered manner, which makes the movements of the two swinging rods restrict each other, and the power and driving force will be affected; the two groups of connecting rods between the two swinging rods in the double-swinging rod structure have mechanical friction during operation, and thus wear occurs; when the wear reaches a certain degree, the frictional force increases accordingly, which reduces the driving force given by the motor to the swinging rod, and the power consumption will increase.

[0019] The single-pendulum motor structure with a single swinging part has no connecting rod and no mechanical friction, so no wear will occur. Therefore, the power is more direct, the driving force is stronger, the power consumption is lower, and the service life of the motor will increase exponentially. Description of the Drawings

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the swinging frame in the embodiment of the present utility model;

[0021] Figure 2 This is an exploded view of the motor frame assembly of the present utility model in the embodiment;

[0022] Figure 3 This is a schematic perspective view of the motor frame assembly of the present utility model in the embodiment;

[0023] Figure 4 This is a schematic perspective view of the outer frame of the present utility model in the embodiment;

[0024] Figure 5 This is a schematic perspective view of the swing part and the fixed part of the present utility model in the embodiment;

[0025] Figure 6 This is a schematic perspective view of the elastic piece of the present utility model in the embodiment.

[0026] Each reference numeral is: swing frame 1; fixed part 2; elastic piece 3; swing part 4; swing extension seat 5; drive rod 6; vertical groove 9; outer frame 11; seat part 12; front blocking part 13; rear blocking part 14; special-shaped hole 15. Detailed implementation manners

[0027] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described in detail below with reference to the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0028] Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below.

[0029] In the description of the present utility model, the terms "first", "second", "third", etc. are only used for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0030] The specific implementation manners of the present utility model are as follows:

[0031] Such as Figure 1As shown in the figure, the utility model provides a motor frame assembly, which includes a swing frame 1. The swing frame 1 includes a fixing part 2, a spring piece 3 and a swing part 4. There is one such spring piece 3 on each of the left and right sides of the swing frame 1. The fixing part 2 and the swing part 4 are arranged at an upper and lower interval, and the fixing part 2 is located below the swing part 4. The spring piece 3 is arranged between the fixing part 2 and the swing part 4. The upper end part of the spring piece 3 is embedded in the swing part 4 and fixedly connected to the swing part 4, and the lower end part of the spring piece 3 is embedded in the fixing part 2 and fixedly connected to the fixing part 2. The spring piece 3 is configured to realize the relative swing between the swing part 4 and the fixing part 2.

[0032] In this solution, the swing part 4 is used to install moving components, such as a drive rod 6. The fixing part 2 is used to install a stator assembly, and the stator assembly will be located in the middle part of the swing frame 1. The swing part 4 located in the upper part, the spring piece 3 located in the left part, the fixing part 2 located in the lower part, and the spring piece 3 located in the right part are fixedly connected to jointly form an integral swing frame 1. Regarding the swing frame 1 as a whole, after the spring piece 3 is embedded into the swing part 4 and the fixing part 2, it is directly fixedly connected to realize the integrated production of the swing frame 1. During the subsequent production process of the motor, there is no need to assemble the swing frame 1 anymore. Only simple assembly is required and finally fastened with screws, which greatly simplifies the assembly operation, makes the assembly production more convenient and simple, and has higher efficiency. Due to the integral structure of the swing frame 1 in this solution, there is a huge difference between the production concept and the prior art. A large number of cumbersome fastening operations on the swing frame 1 are omitted, greatly improving the production and assembly efficiency.

[0033] Specifically, the fixing part 2, the swing part 4 and the two spring pieces 3 are integrally formed. The four together form a swing frame 1 in a square shape. A swing extension seat 5 protrudes upward from the middle of the swing part 4. A drive rod 6 is inserted into the swing extension seat 5. The swing part 4 and the swing extension seat 5 are integrally formed. When producing the swing frame 1, the drive rod 6 is also installed on the swing extension seat 5 at the same time. Therefore, the swing part 4, the swing extension seat 5 and the drive rod 6 are all integrally formed.

[0034] As Figure 1 、 5 As shown in Figures 6, the spring piece 3 is a thin sheet metal part with elasticity. When the swing part 4 swings relative to the fixing part 2, the spring piece 3 can generate corresponding deformation and can be used to maintain the movement track of the swing part 4. A vertical slot 9 is opened in the middle of the spring piece 3. The slot 9 does not penetrate the upper and lower ends of the spring piece 3, so that the upper and lower end parts of the spring piece 3 can be used to connect the swing part 4 and the fixing part 2. The existence of the slot 9 is beneficial to the deformation of the spring piece 3 while reducing the noise generated by the deformation.

[0035] As Figure 4 、 5As shown in the figure, there are various connection methods between the elastic piece 3 and the fixed part 2 and the swing part 4. In this embodiment, a better fixed connection method is to directly inject the upper end part of the elastic piece 3 into the swing part 4 and the lower end part of the elastic piece 3 into the fixed part 2 when injecting and fixing the fixed part 2 and the swing part 4. The upper end part and the lower end part of the elastic piece are both provided with special-shaped holes 15. After the injection molding is completed, the fixed part 2 fills the special-shaped hole 15 located at the lower end part of the elastic piece 3, and the swing part 4 fills the special-shaped hole 15 located at the upper end part of the elastic piece 3, so as to realize the fixed connection of the elastic piece 3 to the swing part 4 and the fixed part 2. Using this method to manufacture the swing frame 1 can also omit the steps of installing fasteners, and the production and assembly efficiency is higher.

[0036] As Figures 1-4 As shown in the figure, the motor frame assembly further includes an outer frame 11. The outer frame 11 includes a seat part 12, a front blocking part 13 and a rear blocking part 14. The front blocking part 13 and the rear blocking part 14 are arranged at intervals front and rear, and both the front blocking part 13 and the rear blocking part 14 are provided on the lower surface of the seat part 12 and extend downward; the outer frame 11 is sleeved on the swing frame 1 and connected to the fixed part 2. The swing frame 1 is located between the front blocking part 13 and the rear blocking part 14 and below the seat part 12. The seat part 12 is hollowed out. The swing extension seat 5 enters the seat part 12 and the driving rod 6 protrudes from the seat part 12; the outer frame 11 is connected to the fixed part 2 by screws; when the outer frame 11 is integrally formed and the swing frame 1 is also integrally formed, after the two are assembled and positioned, they can be directly fastened with screws. The steps of assembling the outer frame 11 itself and the fastening screws in the prior art, as well as the steps of assembling the swing frame 1 itself and the fastening screws are all omitted, greatly improving the production and assembly efficiency.

Claims

1. A motor frame assembly, characterized in that: The invention comprises a swinging frame, which comprises a fixed part, a spring sheet and a swinging part. There is a spring sheet on each of the left and right sides of the swinging frame. The fixed part and the swinging part are arranged with an interval up and down and the fixed part is located below the swinging part. The spring sheet is arranged between the fixed part and the swinging part, and the upper end of the spring sheet is embedded in the swinging part and fixedly connected to the swinging part, and the lower end of the spring sheet is embedded in the fixed part and fixedly connected to the fixed part. The spring sheet is configured to realize relative swinging of the swinging part and the fixed part.

2. The motor frame assembly according to claim 1, characterized in that: The fixed part, the spring piece and the swing part are integrally formed.

3. The motor frame assembly according to claim 1, characterized in that: The invention also comprises an outer frame which is sleeved on the swing frame and connected with the fixing part.

4. The motor frame assembly according to claim 3, characterized in that: The outer frame includes a seat, a front stop and a rear stop, the front stop and the rear stop are arranged at intervals in front and back, and both are arranged on the lower surface of the seat and extend downward; the swing frame is located between the front stop and the rear stop.

5. The motor frame assembly according to claim 3, characterized in that: The outer frame is formed in one piece.

6. The motor frame assembly according to claim 1, characterized in that: A vertical groove is provided in the middle of the spring piece.

7. The motor frame assembly according to claim 1, characterized in that: A swing extension seat is protruded upwardly from the swing part, a driving rod is inserted on the swing extension seat, and the swing part and the swing extension seat are integrally formed.

8. The motor frame assembly according to claim 1, characterized in that: The swinging part, the fixing part and the two spring sheets are integrally formed.

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