A shock proof coil support structure for a reciprocating shaver motor

Abstract

The utility model discloses a kind of anti-impact coil support structures of reciprocating shaver motor, belong to motor technical field, including fixed part, the fixed part includes by from below to above sequentially fixed connection fixed base, fixed column part and fixed top plate, the both sides of the fixed base are fixedly connected with two buckle frame iron core parts, the iron core part is E-shaped core, the iron core part is inserted from below on fixed base, fixed column part and fixed top plate, the both sides of the bottom of the iron core part are fixedly connected with connecting plate. In the utility model, by the four buckle frames of elastic framework bottom and fixed part and the fixed connection mode that two connecting plates of iron core part are all realized clamping joint, construct a stable integrated structure, when shaver suffers impact, elastic framework can quickly accept and disperse impact force, avoid impact force concentrated effect on the connecting portion of coil and iron core part, effectively prevent coil from falling off from iron core part.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, and in particular relates to an anti-impact coil support structure for a reciprocating shaver motor. Background Technology

[0002] The core power source of a reciprocating shaver is a motor whose output end vibrates linearly. It uses an energized coil and an iron core to generate electromagnetic force, driving the shaver head in a high-frequency reciprocating motion to achieve the shaving function. However, in traditional motors, the coil is only fixed in position by a simple plug-in connection between its inner hole and the iron core. There is no independent rigid structure to limit the coil's upper and lower ends or circumferential movement, nor is there an elastic buffer structure to assist in its fixation. When the shaver is dropped, bumped, or subjected to a reverse impact during daily use, the coil is prone to displacement or even detachment from the iron core due to insufficient stability of the plug-in connection, directly causing electromagnetic drive failure.

[0003] In existing technologies, a structure is used where the iron core is supported by a skeleton and the coil is inserted into the iron core to realize the electromagnetic drive function of the motor. In this method, when the shaver is dropped or subjected to a reverse impact, the coil is very easy to fall off the iron core because it has no additional fixation and has its own weight, which leads to motor failure, seriously affects the reliability of the product, and increases the user's maintenance costs. Utility Model Content

[0004] The purpose of this invention is to propose an anti-impact coil support structure for a reciprocating shaver motor, in order to solve the problem in traditional technology where, when the shaver is dropped or subjected to a reverse impact, the coil, due to the lack of additional fixation and its own weight, is very likely to detach from the iron core, leading to motor failure, seriously affecting product reliability, and increasing user maintenance costs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An anti-shock coil support structure for a reciprocating shaver motor includes: The fixing part includes a fixing base, a fixing column and a fixing top plate that are fixedly connected from bottom to top, and two buckle brackets are fixedly connected to both sides of the fixing base; The iron core is an E-shaped iron core, which is inserted into the fixed base, the fixed column and the fixed top plate from below. Connecting plates are fixedly connected to both sides of the bottom of the iron core. The elastic frame is fixedly connected to the bottom of the four snap-fit ​​brackets and two connecting plates by snap-fit ​​engagement. The elastic frame is elastic and is used to absorb impact force when the motor is subjected to impact.

[0006] Preferably, the fixed base, the fixed column, and the fixed top plate are connected through the same central hole. The iron core includes an iron core base that is snapped into the bottom of the fixed base and three iron core columns that are fixedly connected to the top of the iron core base. The three iron core columns are respectively inserted into the two sides of the fixed base and the interior of the central hole.

[0007] Preferably, the wall of the central hole is fixedly connected with two snap-fit ​​strips, and two snap-fit ​​grooves are opened on the iron core column in the middle, with the two snap-fit ​​strips corresponding to and engaging with the two snap-fit ​​grooves.

[0008] Preferably, the same coil is sleeved on the outside of the fixed column and the iron core column located in the middle, and the fixed base and the fixed top plate are both made of insulating plastic and are respectively abutted against the bottom and top of the coil.

[0009] Preferably, the fixed base has two wire holes on its outer side, and the two wire holes are respectively matched with the two wires led out from the coil.

[0010] Preferably, the elastic frame includes two bottom support parts and one top movable part. Two elastic parts are fixedly connected between the two bottom support parts and the two ends of the top movable part. The elastic parts are flexible elastic sheet structures. When the motor is impacted, the elastic parts absorb the impact force through bending deformation. The two bottom support parts are fixedly connected to a meshing part that engages with the buckle frame on opposite sides, and a connecting groove is provided to engage with the connecting plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects: In this invention, a fixed connection is achieved by the four snap-fit ​​brackets at the bottom of the elastic frame and the fixed part, as well as the two connecting plates of the iron core, thus constructing a stable integrated structure. When the shaver is impacted, the elastic frame can quickly absorb and disperse the impact force, preventing the impact force from being concentrated on the connection between the coil and the iron core, effectively preventing the coil from falling off the iron core, greatly improving the reliability of the product in complex usage environments, and reducing the failure rate caused by accidental impacts. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the anti-impact coil support structure for a reciprocating shaver motor proposed in this utility model. Figure 2 This is a schematic diagram of the elastic skeleton structure of the anti-impact coil support structure for a reciprocating shaver motor proposed in this utility model. Figure 3 This is a schematic diagram showing the fit between the fixing part and the iron core part of the anti-impact coil support structure of a reciprocating shaver motor proposed in this utility model. Figure 4 This is a schematic diagram of the iron core structure of an anti-impact coil support structure for a reciprocating shaver motor proposed in this utility model. Figure 5 This is a schematic diagram of the fixing part of the anti-impact coil support structure for a reciprocating shaver motor proposed in this utility model.

[0013] In the diagram: 1. Fixing part; 2. Fixing base; 3. Fixing column; 4. Center hole; 5. Snap-fit ​​strip; 6. Fixing top plate; 7. Threading hole; 8. Snap-fit ​​bracket; 9. Iron core part; 10. Iron core base; 11. Iron core column; 12. Snap-fit ​​groove; 13. Connecting plate; 14. Elastic frame; 15. Bottom support part; 16. Elastic part; 17. Top movable part; 18. Engaging part; 19. Connecting groove. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Reference Figures 1-5 An anti-shock coil support structure for a reciprocating shaver motor, comprising: The fixing part 1 includes a fixing base 2, a fixing column 3 and a fixing top plate 6 that are fixedly connected from bottom to top. The three form a longitudinally continuous frame structure and together constitute the supporting base of the coil.

[0016] Two clip brackets 8 are fixedly connected to both sides of the fixed base 2. As the key interface for connecting with the elastic frame 14, the clip brackets 8 are symmetrically distributed to ensure balanced force.

[0017] The fixed base 2, the fixed column 3, and the fixed top plate 6 are all connected by the same central hole 4. The central hole 4 provides an installation channel for the middle column of the iron core 9 and enhances the overall rigidity of the fixed part 1 through the hole wall structure.

[0018] The iron core 9 is an E-shaped iron core, which is formed by stacking silicon steel sheets to reduce eddy current loss. The iron core 9 is inserted from below into the fixed base 2, the fixed column 3 and the fixed top plate 6, and the precise positioning with the fixed part 1 is achieved by longitudinal insertion.

[0019] Both sides of the bottom of the iron core 9 are fixedly connected to the connecting plate 13. The connecting plate 13 is integrally formed with the iron core base 10 and serves as the force support point for connecting the iron core 9 and the elastic frame 14.

[0020] The core part 9 includes a core base 10 that is snapped into the bottom of the fixed base 2 and three core pillars 11 that are fixedly connected to the top of the core base 10. The three core pillars 11 are respectively inserted into the two sides of the fixed base 2 and the interior of the central hole 4, which not only ensures the integrity of the magnetic field path, but also enhances the impact resistance stability through multi-point insertion.

[0021] Two snap-fit ​​strips 5 are fixedly connected to the wall of the central hole 4. The snap-fit ​​strips 5 are integrally injection molded with insulating plastic and the fixed column part 3. Two snap-fit ​​grooves 12 are opened on the iron core column part 11 located in the middle. The two snap-fit ​​strips 5 are engaged with the two snap-fit ​​grooves 12 one by one. The concave and convex structure realizes the circumferential limitation of the iron core part 9 and the fixed part 1, and prevents the relative rotation of the two from causing coil wear.

[0022] The same coil is sleeved on the outside of the fixed column 3 and the iron core column 11 located in the middle, forming an electromagnet structure. The fixed base 2 and the fixed top plate 6 are both made of insulating plastic and are respectively abutted against the bottom and top of the coil.

[0023] Two wire holes 7 are provided on the outer side of the fixed base 2. The two wire holes 7 correspond one-to-one with the two wires led out from the coil and are fitted with gaps to provide a regular wire routing channel for the wires.

[0024] The elastic frame 14 is made of fatigue-resistant elastic material. The bottom of the elastic frame 14 is fixedly connected to the four buckle brackets 8 and the two connecting plates 13 by snap-fit. The double connection structure makes the fixing part 1 and the iron core part 9 form a rigid whole through the elastic frame 14, which solves the problem of insufficient support strength of the traditional single connection method. The elastic frame 14 is elastic and is used to absorb the impact force when the motor is impacted.

[0025] The elastic frame 14 includes two bottom support parts 15 and one top movable part 17. Two elastic parts 16 are fixedly connected between the two bottom support parts 15 and the two ends of the top movable part 17. The elastic parts 16 are flexible elastic sheet structures. When the motor is impacted, the elastic parts 16 absorb the impact force through bending deformation, converting the instantaneous impact load into elastic potential energy and releasing it gradually. The two bottom support parts 15 are fixedly connected to the opposite side of the engagement part 18, which engages with the buckle frame 8, and are provided with a connecting groove 19 that engages with the connecting plate 13. Through multiple sets of engagement structures, the force is distributed and the overall impact resistance is improved.

[0026] During operation, the E-shaped iron core 9 is inserted longitudinally from below into the fixing part 1. The middle iron core column 11 is inserted into the center hole 4 of the fixing base 2 and the fixing column 3. The locking strip 5 on the inner wall of the center hole 4 engages with the locking groove 12 of the iron core column 11 to achieve circumferential positioning. The iron core columns 11 on both sides are locked onto the two sides of the fixing base 2 and the opposite side of the two bottom support parts 15. The iron core base 10 is locked onto the bottom of the fixing base 2 to complete the positioning of the iron core 9.

[0027] The coil is sleeved on the outside of the fixed column 3 and the middle iron core column 11, and the two wires leading out of the coil are inserted into the wire hole 7 of the fixed base 2.

[0028] The engaging part 18 of the bottom support part 15 engages with the snap bracket 8 of the fixed base 2, and the connecting groove 19 engages with the connecting plate 13 of the iron core base 10. The fixed part 1 and the iron core part 9 are fixed to the elastic frame 14 through the double connection points, forming a rigid whole with the elastic frame 14. At this time, the top movable part 17 of the elastic frame 14 has reserved connection space. Its top is used to fix the shaver holder, and its bottom is used to fix the magnetic plate and multiple permanent magnet blocks. When the motor works, alternating current is passed into the coil. After the current passes through the coil, it forms an electromagnet together with the middle iron core column 11, generating a periodically changing magnetic field. It magnetically cooperates with the multiple permanent magnet blocks. Under the elastic action of the elastic part 16, the top movable part 17 reciprocates linearly.

[0029] When the shaver is subjected to an external impact, the impact force first acts on the elastic frame 14. The elastic part 16 absorbs the instantaneous impact load through bending deformation, converting the impact force into elastic potential energy and releasing it gradually. This prevents the impact force from being directly transmitted to the connection point between the coil and the iron core 9. At the same time, the locking bracket 8 and the connecting plate 13 fix both the fixing part 1 and the iron core 9 to the elastic frame 14, forming a multi-point support and fixation, which effectively prevents the coil from falling off the iron core 9.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An anti-impact coil support structure for a reciprocating shaver motor, characterized in that, include: The fixing part (1) includes a fixing base (2), a fixing column (3) and a fixing top plate (6) that are fixedly connected from bottom to top. Two buckle brackets (8) are fixedly connected to both sides of the fixing base (2). The iron core (9) is an E-shaped iron core. The iron core (9) is inserted into the fixed base (2), the fixed column (3) and the fixed top plate (6) from below. Both sides of the bottom of the iron core (9) are fixedly connected with connecting plates (13). The elastic frame (14) is fixedly connected to the bottom of the four snap brackets (8) and the two connecting plates (13) by snap-fit. The elastic frame (14) is elastic and is used to absorb the impact force when the motor is impacted.

2. The shock-resistant coil support structure for a reciprocating shaver motor according to claim 1, characterized in that, The fixed base (2), fixed column (3) and fixed top plate (6) are connected through the same central hole (4). The iron core (9) includes an iron core base (10) that is snapped into the bottom of the fixed base (2) and three iron core columns (11) that are fixedly connected to the top of the iron core base (10). The three iron core columns (11) are respectively inserted into the two sides of the fixed base (2) and the inside of the central hole (4).

3. The shock-resistant coil support structure for a reciprocating shaver motor according to claim 2, characterized in that, The central hole (4) has two snap-fit ​​strips (5) fixedly connected to its wall. The iron core column (11) located in the middle has two snap-fit ​​grooves (12). The two snap-fit ​​strips (5) are snap-fitted into the two snap-fit ​​grooves (12) in a one-to-one correspondence.

4. The shock-resistant coil support structure for a reciprocating shaver motor according to claim 2, characterized in that, The same coil is sleeved on the outside of the fixed column (3) and the iron core column (11) located in the middle. The fixed base (2) and the fixed top plate (6) are both made of insulating plastic and are respectively abutted against the bottom and top of the coil.

5. The anti-impact coil support structure for a reciprocating shaver motor according to claim 4, characterized in that, The fixed base (2) has two wire holes (7) on its outer side, and the two wire holes (7) are matched one-to-one with the two wires led out from the coil.

6. The shock-resistant coil support structure for a reciprocating shaver motor according to claim 1, characterized in that, The elastic frame (14) includes two bottom support parts (15) and one top movable part (17). Two elastic parts (16) are fixedly connected between the two bottom support parts (15) and the two top movable parts (17). The elastic parts (16) are flexible elastic sheet structures. When the motor is impacted, the elastic parts (16) absorb the impact force through bending deformation. The two bottom support parts (15) are fixedly connected to the opposite side of the engagement part (18) that engages with the buckle frame (8), and a connecting groove (19) that engages with the connecting plate (13) is provided.

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