CN109148096A - A kind of inductor of keyless entry system antenna, design method and device - Google Patents
A kind of inductor of keyless entry system antenna, design method and device Download PDFInfo
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- CN109148096A CN109148096A CN201810994867.1A CN201810994867A CN109148096A CN 109148096 A CN109148096 A CN 109148096A CN 201810994867 A CN201810994867 A CN 201810994867A CN 109148096 A CN109148096 A CN 109148096A
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- 238000013461 design Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 17
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 251
- 230000005291 magnetic effect Effects 0.000 claims abstract description 157
- 239000008188 pellet Substances 0.000 claims abstract description 121
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 239000013013 elastic material Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000003973 paint Substances 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 claims description 3
- 239000002519 antifouling agent Substances 0.000 claims 1
- 230000001965 increasing effect Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 14
- 238000000354 decomposition reaction Methods 0.000 description 6
- 230000011218 segmentation Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 208000035139 partial with pericentral spikes epilepsy Diseases 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/263—Fastening parts of the core together
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
- H01Q1/3233—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
- H01Q1/3241—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems particular used in keyless entry systems
Abstract
The embodiment of the invention discloses a kind of inductor of keyless entry system antenna, design method and devices, it is related to transmitter field, the inductor includes: FERRITE CORE and the enameled wire for being wrapped in the ferrite magnetic core outer surface, and the FERRITE CORE is coaxially connected in series by the ferrite magnetic pellet head and the tail that at least two length are less than setting length threshold.Inductor, design method and the device of a kind of keyless entry system antenna provided in an embodiment of the present invention, realize under the premise of not increasing power consumption, the telecommunication of transmitter and remote controler.And solve the problems, such as that inductor magnetic core because caused by by extraneous impact or vibration is broken.
Description
Technical field
The present embodiments relate to transmitter field more particularly to a kind of inductor of keyless entry system antenna, set
Count method and device.
Background technique
With being continuously increased for vehicle functions, the vehicle of greeting lamp function is such as had, needs remote controler except 5 meters of vehicle
Execute the greeting lamp function of lighting below rearview mirror.
However, presently commercially available band keyless access system (Passive Keyless Entry, PKE) or keyless entry
With vehicle remote controler and it is arranged in vehicle with the vehicle of activation system (Passive Entry And Passive Start, PEPS)
Wake-up (or induction) distance of low frequency transmitter on body is within 2 to 3 meters.
To meet requirement of the greeting lamp function to remote control distance, it is general using the battery energy consumption for increasing automobile-used transmitter or
The method of transmitter power is realized.But this method will increase energy consumption cost.For this purpose, the prior art is using in the automobile-used transmitter of lengthening
The method of the inductor core length of antenna is to meet the requirement of remote control distance.However, lengthen after inductor core be easy by
Impact or vibration to external environment produce fracture.Wake-up signal cannot be normally received after magnetic core fracture, to lose greeting lamp
With the function of door opening.
As it can be seen that there are power consumption is big or what inductor core was easily broken off asks in telecommunication for existing automobile-used transmitter
Topic.
Summary of the invention
The embodiment of the present invention provides inductor, design method and the device of a kind of keyless entry system antenna, to realize
Under the premise of not increasing power consumption, the telecommunication of transmitter and remote controler.And solves inductor core because by outer
The problem of magnetic core caused by the impact or vibration on boundary is broken, to guarantee that the working frequency of transmitter is in resonant operational shape
State.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme:
In a first aspect, the embodiment of the invention provides a kind of inductors of keyless entry system antenna, comprising:
FERRITE CORE and the enameled wire for being wrapped in the ferrite magnetic core outer surface,
The FERRITE CORE is less than the coaxial string of ferrite magnetic pellet head and the tail of setting length threshold by least two length
Connection is formed by connecting.
Further, at least two length be less than set length threshold ferrite magnetic pellet connection type as,
The first confined planes and the second confined planes being oppositely arranged based on fixing seat are carried out at least two ferrite magnetic pellets to be connected
Head and the tail connect two-by-two.
Further, the inductor, further includes:
The hollow sleeve made of elastic material or plastic material, set is rolled in the surface of ferrite magnetic pellet, for protecting
The paint film of vernix envelope curve is from the abrasion of ferrite magnetic pellet, and wherein enameled wire is wrapped in the outer surface of hollow sleeve.
It further, is chamfering structure in the end of the ferrite magnetic pellet, for guiding connection.
Further, enameled wire is wrapped in the mode of the ferrite magnetic core outer surface and includes:
Enameled wire is only wrapped in the outer surface of ferrite magnetic pellet exposed part in the FERRITE CORE；Or
Enameled wire is wrapped in the outer surface of ferrite magnetic pellet exposed part and fixing seat in the FERRITE CORE.
Further, the fixing seat is made of elastic material or plastic material.
The embodiment of the present invention connects into needed length by the ferrite magnetic pellet that length is less than setting length threshold
Target FERRITE CORE, to meet the needs of telecommunication.It is less than setting length ferrite magnetic pellet simultaneously because of length
It limits, so that avoiding the problem that length is too long brings easy fracture.And then realize under the premise of not increasing power consumption, increase transmitter
With remote controler communication distance.And solve what inductor core magnetic core because caused by by extraneous shock and vibration was broken
Problem, to guarantee that the working frequency of transmitter is in resonant operational state.Pacify ferrite magnetic pellet steadily, securely
It is placed in transmitter.
Second aspect, the embodiment of the invention provides a kind of design methods of keyless entry system antenna, comprising:
Determine the length of target FERRITE CORE；
If it is determined that target FERRITE CORE length be greater than setting length threshold, it is determined that constitute target FERRITE CORE
Ferrite magnetic pellet length and quantity；
The ferrite magnetic pellet head and the tail of the quantity and the length are connected using fixing seat, constitute target ferrite magnetic
Core.
Further, the length and quantity of the determining ferrite magnetic pellet for constituting target FERRITE CORE include:
According to the length of target FERRITE CORE, the length for constituting the ferrite magnetic pellet of target FERRITE CORE is determined；
According to the length of the length of target FERRITE CORE and the ferrite magnetic pellet for constituting target FERRITE CORE, determine
Constitute the quantity of the ferrite magnetic pellet of the length of target FERRITE CORE.
The third aspect, the embodiment of the invention also provides a kind of design devices of keyless entry system antenna, comprising:
Target length determining module, for determining the length of target FERRITE CORE；
Magnetic core block determining module, for if it is determined that target FERRITE CORE length be greater than setting length threshold, then really
Surely the length and quantity of the ferrite magnetic pellet of target FERRITE CORE are constituted；
Inductor constitutes module, for being connected the ferrite magnetic pellet head and the tail of the quantity and the length using fixing seat
It connects, constitutes target FERRITE CORE.
Further, the magnetic core block determining module includes:
Length determination unit determines the iron for constituting target FERRITE CORE for the length according to target FERRITE CORE
The length of ferrite core block；
Quantity determination unit, for according to the length of target FERRITE CORE and the ferrite of composition target FERRITE CORE
The length of magnetic core block determines the quantity for constituting the ferrite magnetic pellet of the length of target FERRITE CORE.
When the embodiment of the present invention is greater than setting length threshold by the length in target FERRITE CORE, namely magnetic easily occurs
When core is broken, target FERRITE CORE is subjected to segment processing.Because the length of each ferrite magnetic pellet is both less than after segmentation
Length threshold is set, so the target FERRITE CORE of segmentation is not easy to break.Again because the ferrite magnetic pellet after segmentation can be with
Length is attached according to actual needs, it is possible to realize telecommunication.To dexterously solve automobile-used inductor
FERRITE CORE is because of too long and easily broken problem.And it can be improved the dependable with function of inductor.
Detailed description of the invention
Fig. 1 is a kind of decomposition diagram for inductor that the embodiment of the present invention one provides；
Fig. 2 is a kind of decomposition diagram of inductor provided by Embodiment 2 of the present invention；
Fig. 3 is a kind of structural schematic diagram of inductor provided by Embodiment 2 of the present invention；
Fig. 4 is the signal of the fixing seat of the inductor of one of the embodiment of the present invention two keyless entry system antenna
Figure；
Fig. 5 is the ferrite magnetic pellet of the inductor of one of the embodiment of the present invention two keyless entry system antenna
Schematic diagram；
Fig. 6 is the decomposition diagram of the inductor of one of the embodiment of the present invention two keyless entry system antenna；
Fig. 7 is the structural schematic diagram of the inductor of one of the embodiment of the present invention two keyless entry system antenna；
Fig. 8 is the main view of the inductor of one of the embodiment of the present invention two keyless entry system antenna；
Fig. 9 is the top view of the inductor of one of the embodiment of the present invention two keyless entry system antenna；
Figure 10 is the structural schematic diagram of the inductor of one of the embodiment of the present invention two keyless entry system antenna；
Figure 11 is the main view of the inductor of one of the embodiment of the present invention two keyless entry system antenna；
Figure 12 is the top view of the inductor of one of the embodiment of the present invention two keyless entry system antenna；
Figure 13 is the decomposition diagram of the inductor of one of the embodiment of the present invention two keyless entry system antenna；
Figure 14 is the structural schematic diagram of the inductor of one of the embodiment of the present invention two keyless entry system antenna；
Figure 15 is a kind of flow chart of the design method for keyless entry system antenna that the embodiment of the present invention three provides；
Figure 16 is a kind of structural diagrams of the design device for keyless entry system antenna that the embodiment of the present invention four provides
It is intended to.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Embodiment one
Fig. 1 is a kind of decomposition diagram for inductor that the embodiment of the present invention one provides.The present embodiment is applicable to automobile-used
Transmitter carries out the case where telecommunication.The inductor can be applied in the antenna of keyless access system, be mounted on car door
Or the outside of boot.As shown in Figure 1, a kind of inductor packet of keyless entry system antenna provided in an embodiment of the present invention
It includes:
FERRITE CORE and the enameled wire 21 for being wrapped in the ferrite magnetic core outer surface,
The FERRITE CORE is less than the coaxial string of 1 head and the tail of ferrite magnetic pellet of setting length threshold by least two length
Connection is formed by connecting.
Wherein, ferrite magnetic pellet 1 is the FERRITE CORE of length limited.
Length threshold is set as the ferrite for the automobile-used emitter antenna practiced in technical know-how and engineer application
The optimal or maximum length value that magnetic core effectively can work and be not easily broken.It can specifically set according to actual needs.
Specifically, the coaxial concatenated connection type of 1 head and the tail of ferrite magnetic pellet, which can be, realizes that is be bonded appoints
Meaning mode.Typically, above-mentioned connection type can be gluing, screw rod connection is connected with plastics.
Specifically, described can be by the connection type of screw rod, screw rod one end is rotated into be connected based on screw thread
In the screw hole of ferrite magnetic pellet, is realized with this and head and the tail two-by-two of ferrite magnetic pellet are connected.
Wherein, ferrite magnetic pellet is provided with screw hole to connecting pin, and the both ends of screw rod have screw thread.
The technical solution of the embodiment of the present invention is less than setting length by the way that FERRITE CORE is segmented at least two length
The ferrite magnetic pellet of threshold value, not only meets the needs of inductor telecommunication, concurrently sets length FERRITE CORE
Block because length restriction, so that avoiding the problem that length is too long brings easy fracture.It efficiently solves and realizes transmitter and remote control
When device telecommunication, due to cut-offfing door or the impact of other situation brings or vibration causes what transmitter magnetic core was easily broken off to ask
Topic.
It is only illustrated so that FERRITE CORE is formed by connecting by two ferrite magnetic pellets as an example in the present embodiment.It is optional
Ground, FERRITE CORE can also be formed by connecting two-by-two by three ferrite magnetic pellets.Alternatively, to realize more communication at a distance,
FERRITE CORE can also be formed by connecting two-by-two by more ferrite magnetic pellets.The present embodiment is to this and without any limit
System.
Embodiment two
Fig. 2 is a kind of decomposition diagram of inductor provided by Embodiment 2 of the present invention, and Fig. 3 is that the embodiment of the present invention two mentions
A kind of structural schematic diagram of the inductor supplied.The present embodiment is a kind of optinal plan proposed on the basis of the above embodiments.
As shown in Figures 2 and 3, a kind of inductor of keyless entry system antenna provided in an embodiment of the present invention includes:
FERRITE CORE and the enameled wire 21 for being wrapped in the ferrite magnetic core outer surface,
The FERRITE CORE is less than the coaxial string of 1 head and the tail of ferrite magnetic pellet of setting length threshold by least two length
Connection is formed by connecting.
Wherein, at least two length is less than the connection type for setting the ferrite magnetic pellet 1 of length threshold to be based on
At least two ferrite magnetic pellets 1 to be connected are carried out two by the first confined planes and the second confined planes that fixing seat 31 is oppositely arranged
Two head and the tail connect.
Typically, the size and shape of above-mentioned at least two ferrite magnetics pellet 1 is identical.
Preferably, by the connection of fixing seat 31 so that forming coaxial string between above-mentioned at least two ferrite magnetics pellet 1
Connection relationship.
Specifically, the contour structures of fixing seat 31 can be set according to actual needs.Typically, in ferrite magnetic pellet 1
When for rectangular parallelepiped structure, the shape of fixing seat 31 can be rectangular parallelepiped structure.The both ends of fixing seat 31 are opposite to offer aperture, and two
Baffle is equipped among aperture.Optionally, which can be wholely set with fixing seat 31.Two apertures respectively with intermediate baffle
Form the first confined planes and the second confined planes.Pass through the aperture interpolation by one end of a ferrite magnetic pellet 1 from fixing seat 31
The confined planes for entering, and being fixed in above-mentioned two confined planes, by one end of another ferrite magnetic pellet 1 from the another of fixing seat 31
Insertion in one aperture, and another confined planes being oppositely arranged are fixed on, to realize the connection of two ferrite magnetic pellets 1.
Wherein, confined planes are for being fixedly connected with ferrite magnetic pellet 1.The size of aperture is inserted into according to ferrite magnetic pellet 1
Partial size determines.
The technical solution of the embodiment of the present invention, by the ferrite magnetic that length is less than to setting length threshold using fixing seat
Pellet connects into the target FERRITE CORE of needed length, to meet the needs of telecommunication.Length is less than setting length simultaneously
Ferrite magnetic pellet is spent because of the restriction of length, so that avoiding the problem that length is too long brings easy fracture.And then it realizes and is not increasing
Under the premise of big power consumption, increase transmitter and remote controler communication distance.And solves inductor core because being rushed by the external world
It hits or the problem of the fracture of magnetic core caused by vibrating, to guarantee that the working frequency of transmitter is in resonant operational state.
Optionally, referring to fig. 4, on the basis of the above embodiments, the side wall of the fixing seat 31 is provided with gap 311,
For the convenient installation to ferrite magnetic pellet 1, and it is tightly fastened ferrite magnetic pellet 1.
Further, fixing seat 31 can be made of elastic material or plastic material, for buffering two iron oxygen of connection
Interaction force between body magnetic core block.
Referring to Fig. 5, to avoid ferrite magnetic pellet 1 during being inserted into fixing seat, due to right-angle structure it is easy to damage and
The end of ferrite magnetic pellet 1 is caused to be damaged.The end of ferrite magnetic pellet 1 is set as chamfering structure.The chamfering structure is simultaneously
For guiding the connection of ferrite magnetic pellet 1 Yu fixing seat.
Referring to Fig. 6 to Fig. 9, the inductor can also include:
The hollow sleeve 4 made of elastic material or plastic material, set are rolled in the surface of ferrite magnetic pellet 1, are used for
Protect the paint film of enameled wire 21 from the abrasion of ferrite magnetic pellet 1, wherein enameled wire 21 is wrapped in the appearance of hollow sleeve 4
Face.
Specifically, hollow sleeve 4 is the flexible piece of strip.
Optionally, enameled wire can only be wrapped in the appearance of ferrite magnetic pellet exposed part in the FERRITE CORE
Face.On the basis of ferrite magnetic pellet set is wrapped with hollow sleeve, referring to Figure 10 to Figure 12, enameled wire 21 can only be wrapped in institute
State the outer surface of 1 set of the ferrite magnetic pellet hollow sleeve 4 wrapped up in FERRITE CORE.
Typically, enameled wire is wrapped in the appearance of ferrite magnetic pellet exposed part and fixing seat in the FERRITE CORE
Face.On the basis of ferrite magnetic pellet set is wrapped with hollow sleeve, referring to Fig. 6 to Fig. 9, enameled wire is wrapped in the ferrite magnetic
The outer surface of 1 set of ferrite magnetic the pellet hollow sleeve 4 wrapped up in and fixing seat 31 in core.
Wherein, enameled wire 21 is wound in the outer surface of fixing seat 31, the FERRITE CORE in fixing seat can be efficiently used
Block forms magnetic field.To effectively enhance signal, the waste of FERRITE CORE is reduced.And then reduce the volume of the inductor, drop
Low cost.
In other words, referring to Figure 13 and Figure 14, by taking FERRITE CORE is formed by connecting by two ferrite magnetic pellets as an example.Electricity
Sensor includes: the first ferrite magnetic pellet 101, the second ferrite magnetic pellet 102, the first hollow sleeve 401, the second hollow sleeve
402, enameled wire 21 and fixing seat 31.
Wherein, the tail end of the first ferrite magnetic pellet 101 is fixed in the first confined planes of fixing seat 31.First ferrite
Magnetic core block 101 has part to be set in the hole of the first hollow sleeve 401.The head end of second ferrite magnetic pellet 102 is fixed on
In second confined planes of reservation 31, the second ferrite magnetic pellet 102 has part to be set in the hole of the second hollow sleeve 402.Paint
Envelope curve 21 is wrapped in the outer surface of the first hollow sleeve 401, the second hollow sleeve 402 and fixing seat 31.
The beneficial effect of above scheme is, by by the first confined planes of the first ferrite magnetic pellet tail end and fixing seat
It is fixed positioning, positioning is fixed in the second confined planes of the second ferrite magnetic pellet head end and fixing seat, to realize benefit
The ferrite magnetic pellet for setting length is connected into the ferrite core of needed length with the fixation of fixing seat, it is remote logical to meet
The demand of letter.Concurrently set length ferrite magnetic pellet because length restriction, to avoid the too long easy fracture that brings of length
Problem.It is placed in the first ferrite magnetic pellet and the second ferrite magnetic pellet steadily, securely in transmitter.
Also, the first ferrite magnetic pellet and the second ferrite magnetic pellet form supporting surface on the confined planes of fixing seat,
The supporting surface of elastic material can play the role of buffering and damping, will not generate magnetic core transmitter is by extraneous vibration
Fracture meet the requirement of vehicle to guarantee that the working frequency of transmitter is in resonant operational state.
Experiment shows the connection of multiple ferrite magnetic pellets, can make magnetic field superposition, to reach enhancing magnetic field signal intensity
Effect.
Embodiment three
Figure 15 is a kind of flow chart of the design method for keyless entry system antenna that the embodiment of the present invention three provides.This
Embodiment is applicable to the case where automobile guest-greeting lamp adjusts the distance requirement farther out.This method can be by provided in an embodiment of the present invention one
The design device of keyless entry system antenna is planted to execute.The device can be integrated in vehicle-mounted keyless access system.Such as figure
Shown in 15, a kind of design method for keyless entry system antenna that the embodiment of the present invention three provides includes:
S101, the length for determining target FERRITE CORE.
It is alternatively possible to which distance especially to be remotely controlled determines the length of target FERRITE CORE according to application requirement.
Wherein, target FERRITE CORE is the FERRITE CORE of demand.The length expression of target FERRITE CORE is being applied
It is required that especially to be able to satisfy the minimum of the FERRITE CORE of application requirement, especially remote control distance under the requirement of remote control distance
Length.
To remote control distance be keyless access system be realize a certain function of automobile, such as greeting lamp function, car key and vapour
Effective distance between vehicle.
Specifically, can be set according to specific automobile function to remote control distance and demand of the user to the remote control distance
Setting is to remote control distance.For example, the distance of greeting lamp function setting is that can star within 5 meters to 6 meters, then answered to remote control distance
It is selected as 6 meters.
According to the length that can determine target FERRITE CORE to remote control distance.
S102, if it is determined that target FERRITE CORE length be greater than setting length threshold, it is determined that constitute target iron oxygen
The length and quantity of the ferrite magnetic pellet of body magnetic core.
Wherein the setting length threshold refers to the automobile-used transmitter day practiced in technical know-how and engineer application
The optimal or maximum length value that the FERRITE CORE of line effectively can work and be not easily broken.
The length and quantity of ferrite magnetic pellet refer to constitute target FERRITE CORE ferrite magnetic pellet length and
Quantity.
Specifically, the length and quantity of the determining ferrite magnetic pellet for constituting target FERRITE CORE include:
According to the length of target FERRITE CORE, the length for constituting the ferrite magnetic pellet of target FERRITE CORE is determined；
According to the length of the length of target FERRITE CORE and the ferrite magnetic pellet for constituting target FERRITE CORE, determine
Constitute the quantity of the ferrite magnetic pellet of the length of target FERRITE CORE.
Wherein, the equal part of setting number is carried out to the length of target FERRITE CORE, if the length after equal part is greater than setting
Length threshold then increases the setting number of equal part, continues to execute equal part operation, until the length after equal part is less than or equal to setting length
Threshold value is spent, and using length as the length of ferrite magnetic pellet.The length of target FERRITE CORE is divided by ferrite magnetic pellet
The quotient of length is the quantity of ferrite magnetic pellet.
Alternatively it is also possible to set the quantity of ferrite magnetic pellet first as 2 sections, if the length of target FERRITE CORE is removed
It is less than or equal to above-mentioned setting length threshold with 2 quotient, it is determined that the length of ferrite magnetic pellet is the value of quotient, ferrite magnetic pellet
Quantity be 2 sections.Otherwise, the quantity of ferrite magnetic pellet is set as 3 sections, if the length of target FERRITE CORE is divided by 3 quotient
Less than or equal to above-mentioned setting length threshold, it is determined that the length of ferrite magnetic pellet is the value of quotient, the quantity of ferrite magnetic pellet
It is 3 sections.And so on, to realize the length and determination of amount of ferrite magnetic pellet.
If it is determined that target FERRITE CORE length be less than or equal to setting length threshold, then directly with determining target iron
The Design of length inductor of ferrite core.
Wherein, above-mentioned FERRITE CORE stock material is identical with shape, and length can be different.
S103, the ferrite magnetic pellet head and the tail of the quantity and the length are connected using fixing seat, constitutes target iron
Ferrite core.
Wherein, specific connection type can be found in above-described embodiment, and the present embodiment is not repeating this.
Specifically, the ferrite magnetic pellet head and the tail connection of the quantity and the length is referred to one really using fixing seat
The tail end of the ferrite magnetic pellet of measured length is connected with a confined planes of the fixing seat, by the another of the fixing seat
Confined planes are connected with a ferrite magnetic pellet head end, and so on, at least two pieces of ferrite magnetic pellet head and the tail are connected,
And it is connected and is fixed with the fixing seat.To make the total length and target ferrite of the ferrite magnetic pellet connected and composed
The equal length of magnetic core.
The technical solution of the embodiment of the present invention is greater than setting length threshold by the length in target FERRITE CORE,
When magnetic core fracture easily occurs, target FERRITE CORE is subjected to segment processing.Because of each ferrite magnetic pellet after segmentation
Length both less than sets length threshold, therefore telecommunication both may be implemented in the target FERRITE CORE being segmented, also not easily broken
It splits.The FERRITE CORE of automobile-used inductor is dexterously solved the problems, such as because too long and easily broken.And it can be improved inductor
Dependable with function.
Example IV
Figure 16 is a kind of structural diagrams of the design device for keyless entry system antenna that the embodiment of the present invention four provides
It is intended to.Software can be used in the device or hardware mode is realized.As shown in figure 16, a kind of no key that the embodiment of the present invention four provides
Device into system antenna includes: that target length determining module 71, magnetic core block determining module 72 and inductor constitute module 73；
Wherein, the target length determining module 71, for determining the length of target FERRITE CORE；Optionally, according to
Application requirement, distance especially to be remotely controlled determine the length of target FERRITE CORE；
The magnetic core block determining module 72, for if it is determined that target FERRITE CORE length be greater than setting length threshold
Value, it is determined that constitute the length and quantity of the ferrite magnetic pellet of target FERRITE CORE；
The inductor constitutes module 73, for utilizing fixing seat by the ferrite magnetic pellet of the quantity and the length
Head and the tail connect, and constitute target FERRITE CORE.
The technical solution of the embodiment of the present invention is greater than setting length threshold by the length in target FERRITE CORE,
When magnetic core fracture easily occurs, target FERRITE CORE is subjected to segment processing.Because of each ferrite magnetic pellet after segmentation
Length both less than sets length threshold, therefore telecommunication both may be implemented in the target FERRITE CORE being segmented, also not easily broken
It splits.The FERRITE CORE of automobile-used inductor is dexterously solved the problems, such as because too long and easily broken.And it can be improved inductor
Dependable with function.
With continued reference to Figure 16, on the basis of the above embodiments, the magnetic core block determining module includes: length determination unit
721 and quantity determination unit 722.
Wherein, length determination unit 721 determine for the length according to target FERRITE CORE and constitute target ferrite
The length of the ferrite magnetic pellet of magnetic core；
Quantity determination unit 722, for according to the length of target FERRITE CORE and the iron of composition target FERRITE CORE
The length of ferrite core block determines the quantity for constituting the ferrite magnetic pellet of the length of target FERRITE CORE.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of inductor of keyless entry system antenna, comprising: FERRITE CORE and be wrapped in outside the FERRITE CORE
The enameled wire on surface, which is characterized in that
The FERRITE CORE is connected by the coaxial series connection of ferrite magnetic pellet head and the tail that at least two length are less than setting length threshold
It connects.
2. inductor according to claim 1, which is characterized in that
At least two length is less than the connection type for setting the ferrite magnetic pellet of length threshold as it is opposite to be based on fixing seat
At least two ferrite magnetic pellets to be connected are carried out head and the tail two-by-two and connected by the first confined planes and the second confined planes being arranged.
3. inductor according to claim 1, which is characterized in that further include:
The hollow sleeve made of elastic material or plastic material, set are rolled in the surface of ferrite magnetic pellet, are used for protective paint
The paint film of envelope curve is from the abrasion of ferrite magnetic pellet, and wherein enameled wire is wrapped in the outer surface of hollow sleeve.
4. inductor according to claim 1, which is characterized in that the end of the ferrite magnetic pellet be chamfering knot
Structure, for guiding connection.
5. inductor according to claim 1, which is characterized in that enameled wire is wrapped in the ferrite magnetic core outer surface
Mode includes:
Enameled wire is only wrapped in the outer surface of ferrite magnetic pellet exposed part in the FERRITE CORE；Or
Enameled wire is wrapped in the outer surface of ferrite magnetic pellet exposed part and fixing seat in the FERRITE CORE.
6. inductor according to claim 1, which is characterized in that the fixing seat is by elastic material or plastic material system
At.
7. a kind of design method of keyless entry system antenna is applied to the inductance as claimed in any one of claims 1 to 6
Device characterized by comprising
Determine the length of target FERRITE CORE；
If it is determined that target FERRITE CORE length be greater than setting length threshold, it is determined that constitute target FERRITE CORE iron
The length and quantity of ferrite core block；
The ferrite magnetic pellet head and the tail of the quantity and the length are connected using fixing seat, constitute target FERRITE CORE.
8. inductor design method according to claim 7, which is characterized in that the determining composition target FERRITE CORE
Ferrite magnetic pellet length and quantity include:
According to the length of target FERRITE CORE, the length for constituting the ferrite magnetic pellet of target FERRITE CORE is determined；
According to the length of the length of target FERRITE CORE and the ferrite magnetic pellet for constituting target FERRITE CORE, determines and constitute
The quantity of the ferrite magnetic pellet of the length of target FERRITE CORE.
9. a kind of design device of keyless entry system antenna characterized by comprising
Target length determining module, for determining the length of target FERRITE CORE；
Magnetic core block determining module, for if it is determined that target FERRITE CORE length be greater than setting length threshold, it is determined that structure
At the length and quantity of the ferrite magnetic pellet of target FERRITE CORE；
Inductor constitutes module, for the ferrite magnetic pellet head and the tail of the quantity and the length to be connected using fixing seat,
Constitute target FERRITE CORE.
10. inductor design device according to claim 9, which is characterized in that the magnetic core block determining module includes:
Length determination unit determines the ferrite for constituting target FERRITE CORE for the length according to target FERRITE CORE
The length of magnetic core block；
Quantity determination unit, for according to the length of target FERRITE CORE and the FERRITE CORE of composition target FERRITE CORE
The length of block determines the quantity for constituting the ferrite magnetic pellet of the length of target FERRITE CORE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810994867.1A CN109148096A (en) | 2018-08-29 | 2018-08-29 | A kind of inductor of keyless entry system antenna, design method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810994867.1A CN109148096A (en) | 2018-08-29 | 2018-08-29 | A kind of inductor of keyless entry system antenna, design method and device |
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| CN109148096A true CN109148096A (en) | 2019-01-04 |
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ID=64828989
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|---|---|---|---|
| CN201810994867.1A Pending CN109148096A (en) | 2018-08-29 | 2018-08-29 | A kind of inductor of keyless entry system antenna, design method and device |
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|---|---|---|---|---|
| CN1507677A (en) * | 2001-05-23 | 2004-06-23 | ��ŷ˹�����״�������Ϲɷ�����˾ | Ferrite antenna |
| EP2048738A1 (en) * | 2007-10-09 | 2009-04-15 | N.V. Nederlandsche Apparatenfabriek NEDAP | Magnetic ferrite antenna |
| CN201789062U (en) * | 2010-08-04 | 2011-04-06 | 普莱默电子(无锡)有限公司 | Antenna unit applied to keyless access system |
| US20170256857A1 (en) * | 2016-03-04 | 2017-09-07 | Premo, S.L. | Flexible elongated inductor and elongated and flexible low-frequency antenna |
| CN207489638U (en) * | 2017-06-14 | 2018-06-12 | 昆山沃京电子有限公司 | Automobile-used inductor |
| CN208781660U (en) * | 2018-08-29 | 2019-04-23 | 昆山沃京电子有限公司 | A kind of inductor of keyless entry system antenna |
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2018
- 2018-08-29 CN CN201810994867.1A patent/CN109148096A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1507677A (en) * | 2001-05-23 | 2004-06-23 | ��ŷ˹�����״�������Ϲɷ�����˾ | Ferrite antenna |
| EP2048738A1 (en) * | 2007-10-09 | 2009-04-15 | N.V. Nederlandsche Apparatenfabriek NEDAP | Magnetic ferrite antenna |
| CN201789062U (en) * | 2010-08-04 | 2011-04-06 | 普莱默电子(无锡)有限公司 | Antenna unit applied to keyless access system |
| US20170256857A1 (en) * | 2016-03-04 | 2017-09-07 | Premo, S.L. | Flexible elongated inductor and elongated and flexible low-frequency antenna |
| CN207489638U (en) * | 2017-06-14 | 2018-06-12 | 昆山沃京电子有限公司 | Automobile-used inductor |
| CN208781660U (en) * | 2018-08-29 | 2019-04-23 | 昆山沃京电子有限公司 | A kind of inductor of keyless entry system antenna |
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