An auxiliary positioning device for a coil module production line and a method of using the same

Abstract

The application discloses an auxiliary positioning device for coil module production, which comprises a shell, a limiting structure and a movable platform. One side of the shell is an operation plane, and the operation plane is designed with a window group. The window group comprises at least one window unit. The limiting structure comprises more than one limiting seat, and the size of each limiting seat is matched with the size of the center hole of the corresponding spiral coil. The movable platform and the shell are mechanically connected through an elastic structure. The movable platform and the shell can move linearly or in an arc. The movable platform moves to the inside of the shell under the action of external force. The application can avoid the risk of failing to effectively limit the position of the soft magnetic material. Through the cooperation of the window unit, the movable platform, the spring telescopic rod, the baffle, the limiting column and the limiting seat, the target coil module production efficiency, accuracy, quality and qualification rate are higher.

Description

Technical Field

[0001] This invention relates to the field of spiral coil processing equipment technology, specifically to an auxiliary positioning device for producing coil modules and its usage method. Background Technology

[0002] One type of wireless charger uses coil modules with multiple spiral coils stacked and fixed on a soft magnetic material. The alternating magnetic field of this type of coil module is mainly determined by the relative position between the center holes of each spiral coil. If the center hole of a spiral coil deviates from the ideal position by more than 1 / 20 of the size of the center hole of the spiral coil, a significant change in efficiency will occur.

[0003] In reality, many assembly plants either mistakenly believe that the position of the coil's outer contour determines the characteristics of the alternating magnetic field, or for convenience, they use the outer contour of the spiral coil for positioning. However, because spiral coils naturally have a 3% dimensional tolerance during winding, about 20% of coil modules with poor performance are produced, ultimately resulting in nearly 20% of wireless chargers failing to provide complete wireless charging functionality.

[0004] Therefore, we propose an auxiliary positioning device for producing coil modules and its usage method to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide an auxiliary positioning device for producing coil modules and a method for using it, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary positioning device for producing coil modules, comprising: a housing, a limiting structure, and a movable platform;

[0007] The open side of the housing is the operating plane, and the operating plane is designed with a window assembly;

[0008] The window opening group includes at least one window opening unit;

[0009] The limiting structure includes more than one limiting seat;

[0010] The dimensions of each of the aforementioned limiting seats are matched with the dimensions of the center hole of the corresponding spiral coil;

[0011] Each of the limiting seats passes through the window opening unit corresponding to the window opening group during operation and is fixed to the operating plane of the movable platform facing the housing;

[0012] The position of each of the aforementioned limiting seats fixed on the movable platform matches the position of the center hole of the qualified spiral coil;

[0013] The height h of each of the limiting seats extending beyond the operating plane of the housing is greater than the total thickness t of the multiple spiral coil stacks;

[0014] The projection contours of the window opening unit on the operating plane of the housing overlap with the projection contours of the corresponding spiral coil on the operating plane of the housing.

[0015] The movable platform and the shell are mechanically connected by an elastic structure. The movable platform and the shell can move relative to each other in a straight line or in an arc. The movable platform moves inward toward the shell under the action of external force.

[0016] The activity platform is designed with a baffle that passes through the corresponding window unit of the window assembly.

[0017] The height h of the baffle structure extending beyond the operating plane of the housing is greater than the total thickness t of the multiple spiral coil layers.

[0018] Preferably, the limiting seat is fixed to the slide groove opened on the movable platform by bolts, and the limiting seat moves along the slide groove to adjust its position and angle.

[0019] Preferably, the plate is fixed to the end of the movable platform.

[0020] Preferably, the limiting structure includes a first limiting seat and a second limiting seat.

[0021] The following are the specific steps for using an auxiliary positioning device in the production of coil modules:

[0022] The first step is to apply glue or adhesive film to one side of all the spiral coil housings used for assembly;

[0023] The second step is to sequentially insert the spiral coils into the corresponding limiting seats according to the target stacked structure;

[0024] The third step is to press one edge of the soft magnetic material against the side of the baffle and then press it down toward the inside of the housing.

[0025] Fourth step, as the soft magnetic material moves downward, all the limiting seats will be directly pressured by the soft magnetic material, which will then force the movable platform to move into the housing. All the spiral coils will be brought closer to the soft magnetic material by the window unit and eventually stick to each other in the target coil module.

[0026] Fifth step, remove the pressure of the soft magnetic material towards the inside of the housing, and the movable platform drives the limiting seat to move outward of the housing and lift the coil module away from the operating plane of the housing;

[0027] Step 6: The operator removes the glued coil module.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] 1. Set a limiting seat at a suitable position that matches the size of the center hole of each spiral coil to accurately limit the position of the center hole of each spiral coil. The limiting seat should be higher than the corresponding spiral coil to prevent the spiral coil from easily detaching from the limiting seat after being inserted. Then, set a baffle structure that matches the shape of the soft magnetic material to limit the position of the soft magnetic material to cooperate with the overlapping spiral coil combination. The height of the baffle structure should also be higher than the thickness of the soft magnetic material plus the height of the highest limiting seat. This can avoid the risk of not being able to effectively limit the position of the soft magnetic material.

[0030] 2. Through the cooperation of the window opening unit, movable platform, spring telescopic rod, baffle, limit post and limit seat, the production efficiency, accuracy, quality and pass rate of the target coil module are improved. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the platform structure in this invention;

[0033] Figure 3 This is an exploded view of the present invention;

[0034] Figure 4 This is a schematic diagram of the platform and limiting post in this invention;

[0035] Figure 5 This is a schematic diagram of the soft magnetic material in this invention.

[0036] In the diagram: 1. Shell; 111. Window opening unit; 2. Movable platform; 21. Baffle; 22. Spring telescopic rod; 23. Slide groove; 3. Limiting post; 31. Second limiting seat; 32. First limiting seat; 33. Bolt; 42. Soft magnetic material; 411. First spiral coil; 412. Second spiral coil. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figure 1-5The present invention provides a technical solution: an auxiliary positioning device for producing coil modules, comprising: a housing 1, a limiting structure and a movable platform 2, wherein the upper surface of the housing 1 is an open operating plane, and a window group is fixedly arranged in the operating plane of the housing 1, the window group mainly consisting of window units 111;

[0039] The limiting structure includes a first limiting seat 32 and a second limiting seat 31. A first spiral coil 411 and a second spiral coil 412 are respectively sleeved on the first limiting seat 32 and the second limiting seat 31. The outline dimensions of the first limiting seat 32 and the second limiting seat 31 are respectively matched with the center hole dimensions of the first spiral coil 411 and the second spiral coil 412.

[0040] The first limiting seat 32 and the second limiting seat 31 pass through the window opening unit 111, and the first limiting seat 32 and the second limiting seat 31 are fixedly connected to the movable platform 2 by bolts 33;

[0041] The activity platform 2 is provided with a slide groove 23, and bolts 33 are installed in the slide groove 23. The position of bolts 33 in the slide groove 23 is adjustable, so that the first limit seat 32 and the second limit seat 31 can move along the slide groove 23 to adjust their position and angle, thereby adapting to the position of the center hole of the corresponding spiral coil and the angle of the spiral coil.

[0042] The activity platform 2 is designed with a baffle 21, and the baffle 21 has a reserved groove at the edge of the window opening unit 111;

[0043] The height of baffle 21 is higher than the height of the first limiting seat 32 and the second limiting seat 31;

[0044] The side of the activity platform 2 is integrally provided with a limiting post 3, which is used to position the first spiral coil 411, the second spiral coil 412, and the soft magnetic material 42.

[0045] Working principle: The first spiral coil 411, coated with glue or self-adhesive, is inserted into the first limiting seat 32. Then, the second spiral coil 412, coated with glue or self-adhesive, is inserted into the second limiting seat 31 and pressed against one side of the first spiral coil 411. Then, the edge of the soft magnetic material 42 is pressed against the side of the baffle 21 and simultaneously covers the first spiral coil 411 and the second spiral coil 412. A force is applied to press the soft magnetic material 42 downward. The soft magnetic material 42 contacts the first limiting seat 32 and the second limiting seat 31, and then pushes the first limiting seat 32, the second limiting seat 31, and the movable platform 2 downward to squeeze the spring telescopic rod 22 and move downward together.

[0046] Because of the obstruction of the window unit 111, the first spiral coil 411 and the second spiral coil 412 move upward relative to the limiting seat. Finally, the soft magnetic material 42 will press on the first spiral coil 411. Then, after a slight tilting deformation, the soft magnetic material 42 presses on the second spiral coil 412. The first spiral coil 411, the second spiral coil 412 and the soft magnetic material 42 are firmly bonded together to form a coil module.

[0047] Next, the operator removes the pressure applied to the soft magnetic material 42, allowing the first limiting seat 32 and the second limiting seat 31 to push the coil module away from the window unit 111 under the elastic force of the spring telescopic rod 22, and remove the coil module.

[0048] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary positioning device for producing coil modules, characterized in that: include: Shell (1), limiting structure, moving platform (2); The opening side of the housing (1) is the operating plane, and the operating plane is designed with a window assembly; The window assembly includes at least one window unit (111); The limiting structure includes more than one limiting seat; The dimensions of each of the aforementioned limiting seats are matched with the dimensions of the center hole of the corresponding spiral coil; Each of the limiting seats passes through the window opening unit (111) corresponding to the window opening group during operation and is fixed on the operating plane of the movable platform (2) facing the housing (1); The position of each of the limiting seats fixed on the movable platform (2) matches the position of the center hole of the qualified spiral coil; The height h of each of the limiting seats extending beyond the operating plane of the housing (1) is greater than the total thickness t of the multiple spiral coil stacks; The projection contour of the window opening unit (111) on the operating plane of the housing (1) overlaps with the projection contour of the corresponding spiral coil on the operating plane of the housing (1). The movable platform (2) is mechanically connected to the shell (1) through an elastic structure. The movable platform (2) moves in a straight line or arc relative to the shell (1). The movable platform (2) moves toward the inside of the shell (1) under the action of external force. The activity platform (2) is designed with a baffle (21), which passes through the corresponding window unit (111) of the window assembly; The height h of the baffle (21) structure extending beyond the operating plane of the housing (1) is greater than the total thickness t of the multiple spiral coil stacks; The limiting seat is fixed to the slide groove (23) opened on the movable platform (2) by bolts. The limiting seat moves along the slide groove (23) to adjust its position and angle. The baffle (21) is fixed to the end of the movable platform (2).

2. The auxiliary positioning device for producing coil modules according to claim 1, characterized in that, The limiting structure includes a first limiting seat (32) and a second limiting seat (31).

3. A method of using the auxiliary positioning device according to any one of claims 1-2, characterized in that, The usage method is as follows: The first step is to apply glue or adhesive film to one side of all the spiral coil housings (1) used for assembly; The second step is to sequentially insert the spiral coils into the corresponding limiting seats according to the target stacked structure; The third step is to press one edge of the soft magnetic material against the side of the baffle (21) and then press it down toward the inside of the housing (1); In the fourth step, as the soft magnetic material moves downward, all the limiting seats will be directly pressured by the soft magnetic material and then the active platform (2) will be pressed into the housing (1). All the spiral coils will be brought closer to the soft magnetic material by the window unit (111) and eventually pasted together to form the coil module. Fifth step, remove the pressure of the soft magnetic material towards the inside of the housing (1), and the movable platform (2) drives the limiting seat to move outward of the housing (1) and lifts the coil module away from the operating plane of the housing (1); Step 6: The operator removes the glued coil module.

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