CN203251516U

CN203251516U - Pcb coil and voice coil motor

Info

Publication number: CN203251516U
Application number: CN 201320184920
Authority: CN
Inventors: 张海洲
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-04-10
Filing date: 2013-04-10
Publication date: 2013-10-23
Anticipated expiration: 2023-04-10

Abstract

The utility model is suitable for the field of electronic technology and machinery, and provides a PCB coil which is applied for a voice coil motor. The PCB coil comprises at least two layers of PCB boards. Each layer of PCB board is provided with metal line conductors which are spirally arranged, wire passing holes and welding pads which are arranged at two ends of each metal line conductor. The two layers of PCB boards which are communicated with each other are provided with wire passing holes at same positions, and the other wire passing holes are arranged at different positions. The utility model also provides the voice coil motor which comprises the PCB coil. Thereby, the PCB coil provided by the utility model is a multi-layer PCB board. Because the PCB has mature manufacturing process and is suitable for large-scale production, the coil manufactured through the process has excellent dimension and performance consistency, and furthermore has the following advantages: high manufacture efficiency, low defective rate and low manufacturing cost.

Description

PCB coil and voice coil motor

Technical field

The utility model relates to electronic technology field and mechanical field, relates in particular to a kind of PCB coil and voice coil motor.

Background technology

The application of voice coil motor relates to a lot of fields such as automation and Precision Machining, by the coil of definite shape coiling and the permanent magnet of collaborative work, fixes by mechanical device, and coil can be with dynamic load to realize high speed, high-precision reciprocating motion.The coil of voice coil motor is higher to shape need, tradition is generally processed by craft or coil winding machine, even but process by coil winding machine, also because the coiling forming process of coil relates to the impact of the factors such as situation, Mould Machining level, producer and environmental aspect of quality, the spooling equipment of wire, cause the coil working (machining) efficiency lower, the coil rate of finished products is not high, and consistency is bad, corresponding cost is higher, and causes the reliability of its application apparatus to reduce.In addition, after traditional voice coil motor dispatched from the factory, parameter and performance were namely fixing, and the user can't adjust and change as required.

In summary, existing voice coil motor obviously exists inconvenience and defective in actual use, so be necessary to be improved.

The utility model content

For above-mentioned defective, the purpose of this utility model is to provide a kind of PCB coil and voice coil motor, and coil dimension and the consistency of performance made of its technique are good, and make efficiency is high, and fraction defective is low, and cost of manufacture is low.

To achieve these goals, the utility model provides a kind of PCB coil, be applied to voice coil motor, described PCB coil comprises two-layer at least pcb board, has the wire conductor by spiral on described every layer of pcb board, and the cable-through hole and the pad that are arranged at described wire conductor two ends, the two-layer described pcb board of adjacent connection has the identical described cable-through hole in position, and other described cable-through hole is distributed in diverse location.

According to PCB coil of the present utility model, the helical form of described wire conductor is rectangular coil shape, round spiral or oval helical form.

According to PCB coil of the present utility model, described wire conductor is communicated with by described cable-through hole at the two-layer pcb board that is connected.

According to PCB coil of the present utility model, described wire conductor is Copper Foil.

According to PCB coil of the present utility model, described PCB coil comprises four layers of pcb board.

The utility model also provides a kind of as mentioned above voice coil motor of PCB coil that comprises.

The utility model passes through the two-layer at least pcb board of PCB coil setting, has the wire conductor by spiral on described every layer of pcb board, and the cable-through hole and the pad that are arranged at described wire conductor two ends, the two-layer described pcb board of adjacent connection has the identical described cable-through hole in position, and other described cable-through hole is distributed in diverse location.Whereby, the utility model PCB coil namely is a multi-layer PCB board, because the PCB manufacturing process is ripe, is fit to large-scale production, and PCB coil dimension and the consistency of performance made of its technique are good, and make efficiency is high, and fraction defective is low, and cost of manufacture is low.

Description of drawings

Fig. 1 is the work schematic diagram of the voice coil motor of prior art;

Fig. 2 is the individual layer PCB schematic diagram of the utility model embodiment;

Fig. 3 A is the ground floor PCB structural representation of the double-deck PCB of the utility model one embodiment;

Fig. 3 B is the second layer PCB structural representation of the double-deck PCB of Fig. 3 A illustrated embodiment;

Fig. 3 C is the stacked configuration schematic diagram of the double-deck PCB of Fig. 3 A illustrated embodiment;

Fig. 4 A is the ground floor PCB structural representation of the multi-layer PCB of another embodiment of the utility model;

Fig. 4 B is the second layer PCB structural representation of the multi-layer PCB of Fig. 4 A illustrated embodiment;

Fig. 4 C is the 3rd layer of PCB structural representation of the multi-layer PCB of Fig. 4 A illustrated embodiment;

Fig. 4 D is the 4th layer of PCB structural representation of the multi-layer PCB of Fig. 4 A illustrated embodiment;

Fig. 4 E is the stacked configuration schematic diagram of the multi-layer PCB of Fig. 4 A illustrated embodiment;

Fig. 5 is the structural representation that the PCB coil of the utility model one embodiment cooperates permanent magnet work.

Embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.

For better understanding the utility model, at this related art is described.

Fig. 1 is traditional voice coil motor work schematic diagram, and as shown in FIG., coil 101 is installed on permanent magnet 102,103 tops.

When coil electricity, place the sense of current of N level permanent magnet 102 top coil wires consistent, and with the current opposite in direction that places S level permanent magnet 103 top coil wires, they provide the power of equidirectional for permanent magnet.When the sense of current that driving power provides changed between 1 to 2 and 2 to 1, voice coil motor coil realized reciprocating motion (direction of arrow that effective travel indicates among the figure is the direction of motion) in its effective travel, thereby the band dynamic load realizes reciprocating motion.

Thinking of the present utility model is to make coil with PCB, replaces the coil of the traditional metal wire coiling among Fig. 1.

Referring to Fig. 2～Fig. 4, PCB coil of the present utility model comprises two-layer at least pcb board 10, has the wire conductor 20 by spiral on described every layer of pcb board, and the cable-through hole and the pad that are arranged at described wire conductor 20 two ends, the two-layer described pcb board 10 of adjacent connection has the identical described cable-through hole in position, and other described cable-through hole is distributed in diverse location.

At first see Fig. 2, the conductor (Copper Foil) on the individual layer PCB substrate of the present utility model is arranged according to mode shown in the figure, and end points 1 and 2 is cable-through hole and pad, and the wire that connects driving power can weld at this.Need to prove, the wire conductor 20 preferred Copper Foils that adopt of the present utility model, its helical form can be rectangular coil shape, round spiral or oval helical form etc.

Again referring to structure, the ground floor that is respectively double-layer PCB board shown in Fig. 3 A and Fig. 3 B and the second layer signal of the PCB coil of the double-layer PCB board shown in Fig. 3 A～Fig. 3 C.Cable-through hole 1 is connected to connect driving power with cable-through hole, cable-through hole 12 these position ground floors of expression and the second layer are communicated with.When the sense of current of driving power was from 1 to 2, the sense of current of this PCB coil the right all wires of vertical direction (Copper Foil) was for from top to bottom, and the sense of current of all wires of left side vertical direction (Copper Foil) is for from top to bottom; When the sense of current of driving power was from 2 to 1, the above-mentioned sense of current was also opposite.

Fig. 4 A～Fig. 4 E is the multi-layer PCB schematic diagram of the utility model embodiment, and wherein Fig. 4 A～Fig. 4 D is respectively the 1st, 2,3,4 layer of signal of four layers of pcb board.Cable-through hole 1 is connected to connect driving power with cable-through hole, this position layers 1 and 2 of cable-through hole 12 expressions is communicated with, and this position layers 2 and 3 of cable-through hole 23 expressions is communicated with, cable-through hole 34 expression the 3rd layer and the 4th layer connection in this position.When the sense of current of driving power was from 1 to 4, the sense of current of this pcb board the right all wire conductors of vertical direction (Copper Foil) was for from top to bottom, and the sense of current of all wire conductors of left side vertical direction (Copper Foil) is for from top to bottom; When the sense of current of driving power was from 4 to 1, the above-mentioned sense of current was also opposite.

Fig. 5 is the schematic diagram (overlooking) that the multi-layer PCB of this embodiment of the utility model cooperates permanent magnet work.(concrete device is irrelevant with the utility model in the permanent magnet top for the PCB coil device, in this not signal), when driving power is switched on to PCB (with reference to the description explanation to Fig. 4 A～Fig. 4 E), this PCB realizes reciprocating motion in its effective travel, the direction of arrow that effective travel indicates among the figure is the direction of motion.

Be more preferably, again referring to Fig. 4 A～Fig. 4 E, the cable-through hole among the utility model embodiment adopts and runs through the cable-through hole of whole pcb board and be provided with pad.Here four blocks of plates with Fig. 4 A～Fig. 4 D are called plate 1, plate 2, plate 3 and plate 4 from left to right.When the user is welded to connect cable-through hole 34 and cable-through hole 4, namely plate 4 is carried out short circuit, only have plate 1,2,3 excitations during whole pcb board energising.Like this, the user can change the characteristics such as resistance, inductance and on-position of finished product PCB coil by simple operations according to the needs of oneself, and then changes the kinetic characteristic of coil and drive requirement.Equally, cable-through hole 23 and cable-through hole 4 can be welded to connect (being equivalent to plate 3, plate 4 short circuits), perhaps cable-through hole 12 and cable-through hole 4 be welded to connect (being equivalent to plate 2, plate 3, plate 4 short circuits), need to decide on the user.

It is to be noted, when the user does not change the demand of coil characteristics, cable-through hole also can not adopt the cable-through hole that runs through the monoblock pcb board, the available inside cable-through hole (solid) that only is communicated with two-ply, and cable-through hole does not need to be distributed in the diverse location of pcb board yet like this.

PCB coil of the present utility model is the voice coil motor coil of using the multi-layer PCB processes to make, itself is exactly a PCB multi-layer sheet, but has realized the function of conventional coil, so this paper is referred to as " PCB coil " in the description process.Its advantage is:

The first, PCB manufacturing process is ripe, is fit to large-scale production, and coil dimension and the consistency of performance made of its technique are good, and make efficiency is high, and fraction defective is low, and cost of manufacture is low.

The second, can realize the coil of any shape, use the designing and making that harsh occasion can be easy to carry out voice coil motor in size and geometry.

The coil that the 3rd, PCB technique is made, outward appearance namely is a pcb board, is easy to realize closure designs, reaches waterproof and dustproof, antifouling, anti-corrosion property, can be applied in the environmental aspect very poor occasion and liquid environment.

The 4th, the user can by to the connection of cable-through hole on the pcb board (by with pad that cable-through hole is communicated with between welding), characteristics such as the on-position of change coil, resistance, inductance, and then reach the purpose of change voice coil motor kinetic characteristic.Such voice coil motor has been given the user the very large application degree of freedom.

The utility model also provides a kind of as mentioned above voice coil motor of PCB coil that comprises accordingly, and it has preferably consistency and reliability.

In sum, the utility model passes through the two-layer at least pcb board of PCB coil setting, has the wire conductor by spiral on described every layer of pcb board, and the cable-through hole and the pad that are arranged at described wire conductor two ends, the two-layer described pcb board of adjacent connection has the identical described cable-through hole in position, and other described cable-through hole is distributed in diverse location.Whereby, the utility model PCB coil namely is a multi-layer PCB board, because the PCB manufacturing process is ripe, is fit to large-scale production, and coil dimension and the consistency of performance made of its technique are good, and make efficiency is high, and fraction defective is low, and cost of manufacture is low.

Certainly; the utility model also can have other various embodiments; in the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.

Claims

1. PCB coil, be applied to voice coil motor, it is characterized in that, described PCB coil comprises two-layer at least pcb board, has the wire conductor by spiral on described every layer of pcb board, and the cable-through hole and the pad that are arranged at described wire conductor two ends, the two-layer described pcb board of adjacent connection has the identical described cable-through hole in position, and other described cable-through hole is distributed in diverse location.

2. PCB coil according to claim 1 is characterized in that, the helical form of described wire conductor is rectangular coil shape, round spiral or oval helical form.

3. PCB coil according to claim 1 is characterized in that, described wire conductor is communicated with by described cable-through hole at the two-layer pcb board that is connected.

4. PCB coil according to claim 1 is characterized in that, described wire conductor is Copper Foil.

5. PCB coil according to claim 1 is characterized in that, described PCB coil comprises four layers of pcb board.

6. one kind comprises the voice coil motor such as claim 1～5 PCB coil as described in each.