CN106028623B - Flat motor and electronic equipment - Google Patents
Flat motor and electronic equipment Download PDFInfo
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- CN106028623B CN106028623B CN201610476304.4A CN201610476304A CN106028623B CN 106028623 B CN106028623 B CN 106028623B CN 201610476304 A CN201610476304 A CN 201610476304A CN 106028623 B CN106028623 B CN 106028623B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/0094—Structural association with other electrical or electronic devices
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0215—Grounding of printed circuits by connection to external grounding means
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/0929—Conductive planes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/1009—Electromotor
Abstract
The invention discloses a flat motor and an electronic device, the flat motor includes: a first connecting line and a second connecting line; the motor body is used for generating vibration; a circuit board including a connection layer; the connecting layer is provided with a parallel circuit consisting of a first circuit and a second circuit, so that the motor body obtains electric energy through the first circuit and is in a normal working state, and broadband high-frequency interference signals generated when the motor body is in the normal working state are filtered through the second circuit; wherein, with first circuit connection have: the motor comprises a first connecting line, a motor body and a second connecting line; connected to the second circuit are: the circuit board comprises a first connecting wire, a circuit board and a second connecting wire. The broadband high-frequency interference signal generated when the motor body of the flat motor is in a working state is directly filtered by the circuit board, so that the influence of the broadband high-frequency interference signal on the signal receiving and transmitting performance of the electronic equipment provided with the flat motor can be avoided.
Description
Technical Field
The invention relates to the technical field of electronic devices, in particular to a flat motor and electronic equipment.
Background
Along with the continuous development of scientific technology, more and more communication electronic equipment is widely applied to daily life and work of people, brings great convenience to the daily life and work of people, and becomes an indispensable important tool for people at present.
In order to meet the increasing functional requirements of people, generally, communication electronic equipment is provided with a motor device for enabling the communication electronic equipment to have a vibration function. However, when the motor device operates, a high-frequency interference signal having a wide frequency band is generated, and the signal transmission/reception performance of the communication electronic device is affected.
Disclosure of Invention
In order to solve the above problems, the present invention provides a flat motor and a communication electronic device, which solves the problem that a broadband high-frequency interference signal affects the signal transceiving performance of the electronic device when the flat motor is in operation.
In order to achieve the above purpose, the invention provides the following technical scheme:
a flat motor, comprising:
a first connecting line and a second connecting line;
a motor body for generating vibration;
a circuit board comprising a connection layer; the connecting layer is provided with a parallel circuit consisting of a first circuit and a second circuit, so that the motor body obtains electric energy through the first circuit and is in a normal working state, and broadband high-frequency interference signals generated when the motor body is in the normal working state are filtered through the second circuit;
wherein the content of the first and second substances,
connected to the first circuit are: the first connecting line, the motor body, and the second connecting line;
connected to the second circuit are: the first connecting line, the circuit board and the second connecting line.
Preferably, in the flat motor, the circuit board further includes a filter layer, and the filter layer is configured to filter broadband high-frequency interference signals generated when the motor body is in the normal operating state.
Preferably, in the flat motor, a first insulating layer is provided between the connection layer and the filter layer, the first insulating layer has two first through holes, and the filter layer is connected to the second circuit through the first through holes.
Preferably, in the flat motor, the filter layer includes a first filter layer and a second filter layer;
the first filter layer and the second filter layer are not connected through a direct lead, so that direct current is cut off between the first connecting line and the second connecting line.
Preferably, in the above-mentioned flat motor,
the first filter layer is provided with first radio frequency wiring meeting the requirement of the broadband high-frequency interference signal;
the second filter layer is provided with second radio frequency wiring meeting the requirement of the broadband high-frequency interference signal;
and the first radio frequency routing and the second radio frequency routing meet a relative coupling distance so that the high-frequency interference signal of the broadband passes through.
Preferably, in the flat motor, the filter layer further includes a third filter layer, and the third filter layer is a ground plane layer;
a second insulating layer is arranged between the third filter layer and the second filter layer; the second insulating layer is provided with two second through holes;
the third filter layer is connected with the second radio frequency wiring through the second through hole so as to obtain the high-frequency interference signal of the broadband and release the high-frequency interference signal through the third filter layer.
Preferably, in the flat motor, the flat motor further includes a metal housing, and the third filter layer is connected to the metal housing, so that when the flat motor is installed in an electronic device, the third filter layer directly guides the broadband high-frequency interference signal to a main ground of the electronic device through the metal housing.
Preferably, in the flat motor, the broadband high-frequency interference signal is a radio frequency signal having a frequency greater than 700M.
The present invention also provides an electronic device, including: a circuit main board and a flat motor;
the flat motor includes: a first connecting line and a second connecting line; a motor body for generating vibration; a circuit board comprising a connection layer; the connecting layer is provided with a parallel circuit consisting of a first circuit and a second circuit, so that the motor body obtains electric energy through the first circuit and is in a normal working state, and broadband high-frequency interference signals generated when the motor body is in the normal working state are filtered through the second circuit; wherein connected to the first circuit are: the first connecting line, the motor body, and the second connecting line; connected to the second circuit are: the first connecting line, the circuit board and the second connecting line;
the flat motor is fixed at a preset position of the circuit main board; the circuit main board comprises a main ground; the second circuit filters the high-frequency interference signals of the wide frequency band through a main ground.
Preferably, in the electronic apparatus, the flat motor further includes a metal case, and the second circuit is connected to the metal case such that the second circuit guides the broadband high-frequency interference signal to the main ground through the metal case.
Preferably, in the electronic device, the preset position is provided with an opening to expose the main ground; the metal housing is connected to the primary ground.
Preferably, in the electronic device, the circuit board further includes a filter layer, and the filter layer is configured to filter a broadband high-frequency interference signal generated when the motor body is in the normal operating state.
As apparent from the above description, the flat motor provided by the present invention includes: a first connecting line and a second connecting line; a motor body for generating vibration; a circuit board comprising a connection layer; the connecting layer is provided with a parallel circuit consisting of a first circuit and a second circuit, so that the motor body obtains electric energy through the first circuit and is in a normal working state, and broadband high-frequency interference signals generated when the motor body is in the normal working state are filtered through the second circuit; wherein connected to the first circuit are: the first connecting line, the motor body, and the second connecting line; connected to the second circuit are: the first connecting line, the circuit board and the second connecting line. First connecting wire with one of them of second connecting wire is flat motor's positive lead wire, another is flat motor's negative lead wire, through set up between flat motor's positive lead wire and the negative lead wire the circuit board, the high frequency interference signal of the broadband that the motor body of flat motor generated when working condition directly passes through the circuit board filtering, thereby can avoid the high frequency interference signal of broadband is to installing flat motor's electronic equipment's signal transceiver performance's influence.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a flat motor according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a circuit board according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As described in the background art, in general, a communication electronic apparatus is provided with a motor device for making the communication electronic apparatus have a vibration function. However, when the motor device operates, a high-frequency interference signal having a wide frequency band is generated, and the signal transmission/reception performance of the communication electronic device is affected.
In particular, in order to ensure portability and miniaturization of electronic devices, conventional electronic communication devices generally employ a flat motor having a small size, and the flat motor is mounted on a circuit board of the electronic communication device. The flat motor is close to a communication module and an antenna device of the communication electronic equipment, and when the flat motor works, a broadband high-frequency interference signal is generated to have a larger influence on new signal receiving and transmitting performance of the communication electronic equipment.
In order to solve the above problem, an embodiment of the present invention provides a flat motor including:
a first connecting line and a second connecting line;
a motor body for generating vibration;
a circuit board comprising a connection layer; the connecting layer is provided with a parallel circuit consisting of a first circuit and a second circuit, so that the motor body obtains electric energy through the first circuit and is in a normal working state, and broadband high-frequency interference signals generated when the motor body is in the normal working state are filtered through the second circuit;
wherein connected to the first circuit are: the first connecting line, the motor body, and the second connecting line; connected to the second circuit are: the first connecting line, the circuit board and the second connecting line.
In the flat motor according to the embodiment of the present invention, the circuit board has two first terminals and two second terminals. The two first terminals are respectively connected with the positive electrode and the negative electrode of the motor body. The two second terminals are used for being respectively connected with the first connecting line and the second connecting line. One of the first connecting wire and the second connecting wire is a positive lead of the flat motor, and the other one is a negative lead of the flat motor. One of the first connecting line and the second connecting line which is connected with the positive pole of the motor body through the first circuit in the circuit board is a positive pole lead, and the other one which is connected with the negative pole of the motor body through the first circuit in the circuit board is a negative pole lead.
Will the circuit board sets up between the positive negative lead wire of motor body, like this, avoid the high frequency interference signal of the broadband that the motor body produced when being in normal operating condition directly to pass through the circuit board filtering, the high frequency interference signal of broadband does not pass through the positive negative lead wire of motor body, directly passes through second circuit filtering in the circuit board, has consequently avoided the high frequency interference signal of broadband is in transmit between the positive lead wire of motor body, the backward flow route of the high frequency interference signal of broadband is little, greatly reduced the radiation interference of the high frequency interference signal of broadband to the external world. Therefore, the broadband high-frequency interference signal generated when the motor body of the flat motor is in the working state is directly filtered by the circuit board, so that the influence of the broadband high-frequency interference signal on the signal transceiving performance of the electronic equipment provided with the flat motor can be avoided.
Generally, a flat motor requires FPCs to connect positive and negative leads with positive and negative electrodes of the motor body. In the embodiment of the invention, the connection between the positive and negative leads and the positive and negative electrodes of the motor body is realized by the structure of replacing the FPC by the circuit board, and meanwhile, the high-frequency interference signals of the broadband can be filtered without additionally increasing the overall design size of the flat motor and influencing the external framework of the flat motor.
In order to make the technical solutions provided by the embodiments of the present invention clearer, the above solutions are described in detail below with reference to the accompanying drawings.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a flat motor according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a circuit board according to an embodiment of the present invention, where the flat motor includes: a first connection line 11 and a second connection line 12; a motor body 13, the motor body 13 being for generating vibration; a circuit board 14, the circuit board 14 including a connection layer 21; the connecting layer 21 is provided with a parallel circuit formed by a first circuit and a second circuit, so that the motor body 13 obtains electric energy through the first circuit and is in a normal working state, and high-frequency interference signals of a wide frequency band generated when the motor body 13 is in the normal working state are filtered through the second circuit.
Wherein connected to the first circuit are: the first connection line 11, the motor body 13, and the second connection line 12. Specifically, the circuit board 14 has two first terminals and two second terminals. The two first terminals are respectively connected with the positive electrode and the negative electrode of the motor body. The two second terminals are used for being connected with the first connecting line 11 and the second connecting line 12 respectively. The first circuit is respectively connected with the positive electrode and the negative electrode of the motor body 13 through the first wiring terminal, and is respectively connected with the first connecting line 11 and the second connecting line 12 through the second wiring terminal.
Connected to the second circuit are: the first connecting line 11, the circuit board 14 and the second connecting line 12. Specifically, the second circuit may be connected to the first circuit through the wiring layout in the circuit board 14, and further connected to the first connection line 11 and the second connection line 12, so as to filter the broadband high-frequency interference signal.
As shown in fig. 2, the circuit board 14 further includes a filter layer, and the filter layer is configured to filter broadband high-frequency interference signals generated when the motor body 13 is in the normal operating state. A first insulating layer 22 is arranged between the connecting layer 21 and the filter layer, the first insulating layer 22 has two first vias Via1, and the filter layer is connected to the second circuit through the first vias Via 1.
In the embodiment of the present invention, the filter layer includes a first filter layer 23 and a second filter layer 25; wherein, there is no direct wire connection between the first filter layer 23 and the second filter layer 25, so that the first connection line 11 and the second connection line 12 are isolated from direct current.
The first filter layer 23 is provided with first radio frequency wiring meeting the requirement of the broadband high-frequency interference signal; the second filter layer 25 is provided with second radio frequency wiring meeting the requirement of the broadband high-frequency interference signal; and the first radio frequency routing and the second radio frequency routing meet a relative coupling distance so that the high-frequency interference signal of the broadband passes through. In this way, the first filter layer 23 and the second filter layer 25 are equivalent to a filter capacitor, and can be switched on by ac resistance and dc resistance, and the circuit board 14 can be configured to filter the rf signal of the set frequency band by setting the relative coupling distance and the rf trace parameters (including the trace shape, the trace line width, and the trace line length of the first rf trace and the second rf trace).
Optionally, in order to increase the conduction capability of the alternating current signal between the first filter layer 23 and the second filter layer 25, a dielectric layer 24 having a dielectric constant greater than a preset threshold value is further disposed on the first filter layer 23 and the second filter layer 25. By selecting dielectric layers 24 with different dielectric constants, the rf signals of a set frequency band can be set and filtered.
As shown in fig. 2, the filter layer further includes a third filter layer 27, and the third filter layer 27 is a ground plane layer; a second insulating layer 26 is provided between the third filter layer 27 and the second filter layer 25; the second insulating layer 26 has two second through holes Via 2; the third filter layer 27 is connected to the second rf trace through the second Via2, so as to obtain the broadband high-frequency interference signal and release the broadband high-frequency interference signal through the third filter layer 27.
Optionally, the flat motor further includes a metal housing 15, and the third filter layer 27 is connected to the metal housing, so that when the flat motor is installed in an electronic device, the third filter layer 27 directly guides the broadband high-frequency interference signal to a main ground of the electronic device through the metal housing 15. Typically, the third filter layer 27 is a metallic copper layer. The surface of the circuit board 14 is provided with an insulating protective layer for insulating and protecting the internal circuit. The opening can be arranged at the preset position of the insulating protection layer, so that the third filter layer 27 directly passes through the opening and is connected with the metal shell 15, the electric connection effect of the third filter layer 27 and the metal shell 15 is ensured, the contact resistance is reduced, the third filter layer 27 and the metal shell 15 are fixedly connected at the opening through the conductive adhesive, and the better filter effect can be ensured.
At this time, the flat motor can be directly connected with the main ground through the metal shell 15, and a grounding pin is not required to be separately provided for the flat motor, thereby simplifying the structure of the flat motor. Simultaneously, can realize through metal casing with electronic equipment's large tracts of land electrical contact, for the contact mode of traditional ground connection pin, the contact performance is more stable, and the electrical contact effect is better, and interfering signal external radiation is lower, can guarantee to have better filtering effect.
Optionally, the broadband high-frequency interference signal is a radio-frequency signal with a frequency greater than 700M. It should be noted that the broadband high-frequency interference signal filtered by the flat motor according to the embodiment of the present invention is not limited to the radio frequency signal greater than 700M. The frequency range in which interference signals are filtered out can be set by setting the circuit layout within the circuit board 14.
In the flat motor, the circuit board 14 is a four-layer PCB structure. The first layer of PCB board includes the connecting layer 21, the second layer of PCB board includes the first filtering layer 23, the third layer of PCB board includes the second filtering layer 25, and the fourth layer of PCB board includes the third filtering layer 27.
In the connection layer, the first circuit includes two first wires, one first wire is used to connect the positive electrode and the positive electrode lead of the motor body 13, and the other first wire is used to connect the negative electrode and the negative electrode lead of the motor body 13. The circuit board 14 has an outer pad welded to the positive and negative electrodes of the motor body 13, so that the positive and negative electrodes of the motor body 13 are connected to the first circuit.
The second circuit comprises two second wires, and one second wire is connected with one first wire and used for filtering the high-frequency interference signals of the broadband. In the embodiment shown in fig. 2, the second trace transmits the broadband high-frequency interference signal to the filter layer. The second traces are insulated from each other, so that the first connection line 11 and the second connection line 12 are insulated from each other. The second trace may be connected to the filter layer through a first Via1 that extends through the first insulating layer 22.
The first filter layer 23 of the filter layer includes two first rf traces, and one first rf trace is connected to one second trace. The first rf traces are insulated from each other, so that the first connection line 11 is insulated from the second connection line 12.
The second filter layer 25 of the filter layer includes two second rf traces, one second rf trace corresponds to one first rf trace, and the second rf trace is coupled to the corresponding first rf trace so that the high-frequency interference signal of the broadband is transmitted from the first filter layer 23 to the second filter layer 25.
The second rf trace may be connected to the third filter layer 27 through a second Via2 that extends through the second insulating layer 26. A second rf trace is connected to the third filter layer 27 through a corresponding second Via 2.
When the motor body 13 is powered by the first connecting line 11 and the second connecting line 12, the motor body is in a normal working state, and at the moment, the motor body 13 starts to vibrate and simultaneously generates a broadband high-frequency interference signal, and the broadband high-frequency interference signal is output through the positive electrode and the negative electrode.
Direct current signals for supplying power to the motor body 13 are correspondingly input to the positive electrode and the negative electrode of the motor body 13 through the first circuit of the circuit board 14, and the broadband high-frequency interference signals are filtered after passing through the first circuit and the second circuit of the circuit board 14. Specifically, the broadband high-frequency interference signal is transmitted to the second circuit through the first circuit located on the connection layer, passes through the first Via1 and is transmitted to the first rf trace of the first filter layer 23, is transmitted to the second rf trace of the second filter layer 25 through a coupling effect, is transmitted to the third filter layer 27 through the second Via2, and is finally transmitted to the main ground of the electronic device through the metal shell.
In the above embodiment, the filtering layer connected to the second circuit filters out a high-frequency interference signal of a wide frequency band generated when the motor body is in the normal operating state, and the filtering layer filters out the high-frequency interference signal of the wide frequency band through two layers of coupled radio frequency wires.
In other embodiments, a filter capacitor may also be integrated directly on the connection layer, i.e. the filter layer is replaced by a filter capacitor. One electrode of the filter capacitor is connected with the second circuit, the other electrode of the filter capacitor is connected with a main ground, and the broadband high-frequency interference signal is conducted to the main ground through the second circuit and the filter capacitor to be filtered. In this case, when the flat motor is mounted on an electronic device, the filter capacitor may be connected to a metal housing of the flat motor, connected to a main circuit board of the electronic device through the metal housing, and further connected to a main ground of the electronic device.
As can be seen from the above description, in the flat motor according to the embodiment of the present invention, the circuit board 14 directly filters the broadband high-frequency interference signal without passing through the first connection line 11 and the second connection line 12, and a return path of the broadband high-frequency interference signal is small, so as to reduce the interference of the broadband high-frequency interference signal to the outside to the maximum extent.
Based on the above embodiment, the present invention also provides an electronic device, including: a circuit main board and a flat motor. Wherein, the flat motor is the flat motor of the above embodiment.
The flat motor includes: a first connecting line and a second connecting line; a motor body for generating vibration; a circuit board comprising a connection layer; the connecting layer is provided with a parallel circuit consisting of a first circuit and a second circuit, so that the motor body obtains electric energy through the first circuit and is in a normal working state, and broadband high-frequency interference signals generated when the motor body is in the normal working state are filtered through the second circuit; wherein connected to the first circuit are: the first connecting line, the motor body, and the second connecting line; connected to the second circuit are: the first connecting line, the circuit board and the second connecting line.
The flat motor is fixed at a preset position of the circuit main board; the circuit main board comprises a main ground; the second circuit filters the high-frequency interference signals of the wide frequency band through a main ground.
Optionally, the flat motor further includes a metal housing, and the second circuit is connected to the metal housing, so that the second circuit guides the broadband high-frequency interference signal to the main ground through the metal housing.
The preset position is provided with an opening to expose the main ground; the metal housing is connected to the primary ground. In order to ensure that the metal shell and the circuit main board have a better electric connection effect, the metal shell and the contained power transmission circuit main board are bonded and fixed at the opening through conductive adhesive.
The circuit board further comprises a filter layer, and the filter layer is used for filtering broadband high-frequency interference signals generated when the motor body is in the normal working state.
In the electronic apparatus according to the embodiment of the present invention, the flat motor is the flat motor according to the above-described embodiment. The electronic device may have a communication function, such as a mobile phone, a tablet computer, or a smart wearable electronic device.
In the electronic device, with the flat motor according to the above embodiment, the first connection line and the second connection line are connected to the circuit board, and the flat motor is powered through the circuit board. The flat motor can filter the high-frequency interference signal of the broadband generated when the motor body is in the normal working state through the circuit, so that the interference of the high-frequency interference signal of the broadband to the communication signal in the electronic equipment and the control signal in the circuit main board is avoided, and the performance of the electronic equipment is ensured.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A flat motor, characterized in that it comprises:
a first connecting line and a second connecting line;
a motor body for generating vibration;
a circuit board including a connection layer and a filter layer; the connecting layer is provided with a parallel circuit consisting of a first circuit and a second circuit, so that the motor body obtains electric energy through the first circuit and is in a normal working state, and broadband high-frequency interference signals generated when the motor body is in the normal working state are filtered through the second circuit; the filter layer is used for filtering broadband high-frequency interference signals generated when the motor body is in the normal working state, a first insulating layer is arranged between the connecting layer and the filter layer, the first insulating layer is provided with two first through holes, and the filter layer is connected into the second circuit through the first through holes;
wherein the content of the first and second substances,
connected to the first circuit are: the first connecting line, the motor body, and the second connecting line;
connected to the second circuit are: the first connecting line, the circuit board and the second connecting line;
one of the first connecting line and the second connecting line is an anode lead of the flat motor, the other one is a cathode lead of the flat motor, in the connecting layer, the first circuit comprises two first wires, one first wire is used for connecting the anode and the anode lead of the motor body, the other first wire is used for connecting the cathode and the cathode lead of the motor body, the second circuit comprises two second wires, and one second wire is connected with one first wire and used for filtering out high-frequency interference signals of the broadband;
the filter layer comprises a first filter layer and a second filter layer;
the first filter layer and the second filter layer are not connected through a direct lead, so that direct current is cut off between the first connecting line and the second connecting line;
the first filter layer is provided with first radio frequency wiring meeting the requirement of the broadband high-frequency interference signal;
the second filter layer is provided with second radio frequency wiring meeting the requirement of the broadband high-frequency interference signal;
and the first radio frequency routing and the second radio frequency routing meet a relative coupling distance so that the high-frequency interference signal of the broadband passes through.
2. The flat motor according to claim 1, wherein the filter layer further comprises a third filter layer, the third filter layer being a ground plane layer;
a second insulating layer is arranged between the third filter layer and the second filter layer; the second insulating layer is provided with two second through holes;
the third filter layer is connected with the second radio frequency wiring through the second through hole so as to obtain the high-frequency interference signal of the broadband and release the high-frequency interference signal through the third filter layer.
3. The flat motor according to claim 2, further comprising a metal housing, wherein the third filter layer is connected to the metal housing, such that the third filter layer directly guides the broadband high-frequency interference signal to a main ground of an electronic device through the metal housing when the flat motor is installed in the electronic device.
4. The flat motor according to claim 1, wherein the broadband high frequency interference signal is a radio frequency signal having a frequency greater than 700M.
5. An electronic device, comprising: a circuit main board and a flat motor;
the flat motor includes: a first connecting line and a second connecting line; a motor body for generating vibration; a circuit board including a connection layer and a filter layer; the connecting layer is provided with a parallel circuit consisting of a first circuit and a second circuit, so that the motor body obtains electric energy through the first circuit and is in a normal working state, and broadband high-frequency interference signals generated when the motor body is in the normal working state are filtered through the second circuit; the filter layer is used for filtering broadband high-frequency interference signals generated when the motor body is in the normal working state, a first insulating layer is arranged between the connecting layer and the filter layer, the first insulating layer is provided with two first through holes, and the filter layer is connected into the second circuit through the first through holes; wherein connected to the first circuit are: the first connecting line, the motor body, and the second connecting line; connected to the second circuit are: the first connecting line, the circuit board and the second connecting line; one of the first connecting line and the second connecting line is an anode lead of the flat motor, the other one is a cathode lead of the flat motor, in the connecting layer, the first circuit comprises two first wires, one first wire is used for connecting the anode and the anode lead of the motor body, the other first wire is used for connecting the cathode and the cathode lead of the motor body, the second circuit comprises two second wires, and one second wire is connected with one first wire and used for filtering out high-frequency interference signals of the broadband;
the flat motor is fixed at a preset position of the circuit main board; the circuit main board comprises a main ground; the second circuit filters the high-frequency interference signals of the broadband through a main ground;
the filter layer comprises a first filter layer and a second filter layer;
the first filter layer and the second filter layer are not connected through a direct lead, so that direct current is cut off between the first connecting line and the second connecting line;
the first filter layer is provided with first radio frequency wiring meeting the requirement of the broadband high-frequency interference signal;
the second filter layer is provided with second radio frequency wiring meeting the requirement of the broadband high-frequency interference signal;
and the first radio frequency routing and the second radio frequency routing meet a relative coupling distance so that the high-frequency interference signal of the broadband passes through.
6. The electronic device of claim 5, wherein the flat motor further comprises a metal housing, and the second circuit is connected to the metal housing such that the second circuit directs the broadband high frequency interference signal to the main ground through the metal housing.
7. The electronic device according to claim 6, wherein the preset position is provided with an opening to expose the main ground; the metal housing is connected to the primary ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610476304.4A CN106028623B (en) | 2016-06-24 | 2016-06-24 | Flat motor and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610476304.4A CN106028623B (en) | 2016-06-24 | 2016-06-24 | Flat motor and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106028623A CN106028623A (en) | 2016-10-12 |
| CN106028623B true CN106028623B (en) | 2020-10-27 |
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| CN201610476304.4A Active CN106028623B (en) | 2016-06-24 | 2016-06-24 | Flat motor and electronic equipment |
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| CN106686166B (en) * | 2017-02-10 | 2021-01-08 | 惠州Tcl移动通信有限公司 | Mobile terminal for reducing de-sense through motor grounding |
| CN113871993B (en) * | 2021-09-06 | 2023-07-28 | 江苏铁锚玻璃股份有限公司 | Transparent sound box and connection method of internal circuit thereof |
Citations (4)
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| JPH10164867A (en) * | 1996-11-25 | 1998-06-19 | Canon Precision Inc | Vibrating-wave driving device |
| CN201044264Y (en) * | 2007-05-28 | 2008-04-02 | 达昌电子科技(苏州)有限公司 | Antenna module |
| CN203135965U (en) * | 2013-03-07 | 2013-08-14 | 深圳市兴飞科技有限公司 | Structure for eliminating vibration radio frequency interference |
| CN204442832U (en) * | 2015-03-06 | 2015-07-01 | 上海与德通讯技术有限公司 | A kind of pad structure |
-
2016
- 2016-06-24 CN CN201610476304.4A patent/CN106028623B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10164867A (en) * | 1996-11-25 | 1998-06-19 | Canon Precision Inc | Vibrating-wave driving device |
| CN201044264Y (en) * | 2007-05-28 | 2008-04-02 | 达昌电子科技(苏州)有限公司 | Antenna module |
| CN203135965U (en) * | 2013-03-07 | 2013-08-14 | 深圳市兴飞科技有限公司 | Structure for eliminating vibration radio frequency interference |
| CN204442832U (en) * | 2015-03-06 | 2015-07-01 | 上海与德通讯技术有限公司 | A kind of pad structure |
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