CN205545908U - Sounding device - Google Patents
Sounding device Download PDFInfo
- Publication number
- CN205545908U CN205545908U CN201620082179.4U CN201620082179U CN205545908U CN 205545908 U CN205545908 U CN 205545908U CN 201620082179 U CN201620082179 U CN 201620082179U CN 205545908 U CN205545908 U CN 205545908U
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- China
- Prior art keywords
- side plate
- microphone device
- magnetic circuit
- vibrating diaphragm
- voice coil
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Abstract
The utility model relates to a sounding device, it includes: vibration system, vibration system includes vibrating diaphragm and drive the drive arrangement of the platykurtic of vibrating diaphragm vibration, drive arrangement place plane with vibrating diaphragm place plane phase is perpendicular, magnetic circuit, magnetic circuit set up in drive arrangement belongs to planar both sides, magnetic circuit's intermediate formation holds drive arrangement's magnetic gap, and accept vibration system with magnetic circuit's shell, shell both ends opening and inside cavity, the vibrating diaphragm covers shell one end, the shell includes mutual lock fixed and relative first curb plate that sets up and second curb plate, first curb plate with the position department orientation of second curb plate looks lock second curb plate protrusion has protrudingly, seted up on the second curb plate with the pilot hole of protruding looks adaptation.
Description
Technical field
The utility model relates to stereo set field, is specifically related to a kind of microphone device.
Background technology
In recent years, along with the progress at full speed of the development of science and technology, especially mobile communication technology, more
Carry out the most mobile electronic devices and occur in daily life, such as smart mobile phone, flat board
Computer, notebook computer and Rich media player have become the indispensable life of people and have used
Product.And in these mobile electronic devices, voice playing device is its internal requisite portion
Part, the height of voice quality directly affects user's body when user uses these mobile electronic devices
Test.
Microphone device is as the playing device of voice, and the design of its structure directly affects speech play matter
Amount.The microphone device of prior art includes magnet, voice coil loudspeaker voice coil, connector, vibrating diaphragm, top dome and shell
Bodies etc., in existing microphone device structure, voice coil loudspeaker voice coil is directly bonded in below vibrating diaphragm.
But, there is the biggest problem with the attachment structure of vibrating diaphragm in this voice coil loudspeaker voice coil, works as microphone device
When amplitude is bigger, voice coil loudspeaker voice coil has bigger tractive force, vibrating diaphragm unbalance stress to vibrating diaphragm, causes vibrating diaphragm
Wave, produce distortion, and then affect acoustic mass and the service life of microphone device.Additionally,
There is the shortcoming that the microphone device of this structure voice coil loudspeaker voice coil there is also assembling difficulty.
Utility model content
The utility model pin drawbacks described above provides a kind of novel microphone device, especially by following
Scheme realizes:
The utility model provides a kind of microphone device, comprising:
Vibrational system, described vibrational system includes vibrating diaphragm and drives the flat of described diaphragm oscillations
Driving means, described driving means place plane is perpendicular with described vibrating diaphragm place plane；
Magnetic circuit system, described magnetic circuit system is arranged at the both sides of described driving means place plane,
The magnetic gap accommodating described driving means is formed in the middle of described magnetic circuit system；
And house described vibrational system and the shell of described magnetic circuit system；
Described shell both ends open and inner hollow, described vibrating diaphragm covers in described shell one end,
Described shell includes the first side plate and the second side plate being mutually fastened and being oppositely arranged, described
The position that first side plate and described second side plate are interlocked is protruding with towards described second side plate
Projection, described second side plate offers the pilot hole suitable with described projection.
In microphone device described in the utility model, described projection is hot melt columnar protrusions.
In microphone device described in the utility model, described first side plate and/or described second side
Offering the mounting groove just to described magnetic circuit system on plate, described magnetic circuit system is arranged on described peace
In tankage.
In microphone device described in the utility model, described mounting groove prolongs towards described magnetic circuit system
Stretch out the positive stop lug boss abutting described magnetic circuit system.
In microphone device described in the utility model, described positive stop lug boss includes being symmetricly set on institute
State the first limiting section on the first side plate, and be symmetricly set on second on described second side plate
Limiting section.
In microphone device described in the utility model, described driving means includes described in vertical support
The support of vibrating diaphragm and the voice coil loudspeaker voice coil of parallel described support, described voice coil loudspeaker voice coil sets near described second side plate
Putting and be attached at the side surface of described support, described voice coil loudspeaker voice coil end has lead-in wire, described second limit
Towards being formed with the relief portion dodging described lead-in wire away from described voice coil loudspeaker voice coil direction depression in the portion of position.
In microphone device described in the utility model, described relief portion is arc.
In microphone device described in the utility model, described magnetic circuit system includes being respectively arranged on described
Two groups of magnet portion of driving means both sides, are often organized described magnet portion and are installed by a magnetic conductive board respectively
In described mounting groove.
In microphone device described in the utility model, two described magnetic conductive boards are specular, and
Each described magnetic conductive board is perpendicular to the side upper part of described vibrating diaphragm and has been bent to form towards offside
Extend kink, just to described kink mutually abut；Described positive stop lug boss sandwiched is also supported
It is connected between adjacent two described kinks of same described side.
In microphone device described in the utility model, described magnetic conductive board is plate-shaped, described mounting groove
Having the subsider corresponding with described magnetic conductive board, described magnetic conductive board is placed in described subsider
In, described two groups of magnet are parallelly mounted on described magnetic conductive board respectively, and described magnet is perpendicular to institute
The both sides stating vibrating diaphragm abut described positive stop lug boss respectively.
Compared to prior art, the microphone device that the utility model provides has following useful effect
Really: make two side plates surround collecting magnetic circuit system and shake by projection with cooperating of pilot hole
The shell of dynamic system, can be effectively ensured the accurate fit of biside plate, and install more convenient.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in the utility model embodiment, below will be to reality
Execute the required accompanying drawing used during example describes to be briefly described, it should be apparent that, describe below
In accompanying drawing be only embodiments more of the present utility model, for those of ordinary skill in the art
From the point of view of, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings
Accompanying drawing, wherein:
Fig. 1 is the outward appearance signal of microphone device the first preferred embodiment that the utility model provides
Figure；
Fig. 2 is the decomposing schematic representation of microphone device shown in Fig. 1；
Fig. 3 is the longitudinal sectional view of microphone device shown in Fig. 1；
Fig. 4 is the vibrational system structural representation of sound-producing device shown in Fig. 2；
Fig. 5 is the motor structure schematic diagram of sound-producing device shown in Fig. 2；
Fig. 6 is the structural representation of the shell of microphone device shown in Fig. 1；
Fig. 7 is first side plate assembling schematic diagram with magnetic circuit system of microphone device shown in Fig. 2；
Fig. 8 is second side plate assembling schematic diagram with magnetic circuit system of microphone device shown in Fig. 2；
Fig. 9 is the shell mechanism of microphone device the second preferred embodiment that the utility model provides
Schematic diagram；
Figure 10 is the assembling schematic diagram of the first side plate shown in Fig. 9 and magnetic circuit system；
Figure 11 is the assembling schematic diagram of the second side plate shown in Fig. 9 and magnetic circuit system.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, in the utility model embodiment
Technical scheme be clearly and completely described, it is clear that embodiments described below is only used
In the utility model is explained, and it is used for limiting the utility model.
Seeing also Fig. 1, Fig. 2 and Fig. 3, wherein, Fig. 1 provides for the utility model
The outside drawing of the first embodiment of microphone device；The microphone device that Fig. 2 provides for the utility model
Explosive view；The sectional view of the microphone device that Fig. 3 provides for the utility model.Described acoustical generator
Part 1 includes magnetic circuit system 11, vibrational system 13 and the shell 10 of tool receiving space, described magnetic
Road system 11 and described vibrational system 13 are all contained in the receiving space of described shell 10.
As shown in Figure 3-4, vibrational system 13 includes vibrating diaphragm 130 and drives vibrating diaphragm 130 to vibrate
The driving means of flat, and this driving means place plane and vibrating diaphragm 130 place plane phase
Vertically.This driving means includes the support 131 of vertical support vibrating diaphragm 130 and is parallel to support
The voice coil loudspeaker voice coil 132 of 131, the voice coil loudspeaker voice coil 132 of flat is attached to the side surface of support 131.Magnetic circuit
System 11 is arranged at the both sides of driving means place plane, shown in Fig. 5, magnetic circuit system
The magnetic gap 122 accommodating driving means is formed in the middle of 11.As it is shown on figure 3, magnetic circuit system
11 include first magnet portion the 110, second magnet portion 111 being respectively arranged on driving means 13 both sides.
Shell 10 is covered with cover plate 14 near one end of vibrating diaphragm 130, and vibrating diaphragm 130 is folded in cover plate 14
And between shell 10, the other end of shell 10 is fixedly connected with back casing 15, back casing 15
The base plate 152 of end of body 151, back cover it is located at including the body 151 of both ends open and lid
The rear operatic tunes connected with shell 10 is formed in body 15.Support 131 one end is connected with vibrating diaphragm 130,
Support 131 other end is fixed with centring disk 133, and centring disk 133 offers outside connection
Shell 10 and the through hole of back casing 15.
As Figure 1-3, shell 10 both ends open and inner hollow, vibrating diaphragm 130 covers
One end of shell 10.As in figure 2 it is shown, shell 10 includes mutually being fastened and being oppositely arranged
The first side plate 10A and the second side plate 10B, the first side plate 10A and the second side plate 10B interlock
The position closed is protruding with projection 102, accordingly, the first side towards described second side plate 10B
The pilot hole 103 suitable with projection 102 is offered on plate 10A.Preferably, projection 103
For the columnar protrusions of hot melt, during assembling, and filled the projection 103 of this column by hot melting way
Distribution 102 grafting, both ensure that the accurately assembling of the first side plate 10A and the second side plate 10B was fixed
Position, the mode of hot melt also can be effectively improved consolidating of the first side plate 10A and the second side plate 10B simultaneously
Determine intensity.Should be appreciated that projection 103 is interchangeable with the relative position of pilot hole 102, and prominent
Play 103 to be not limited to illustrate four in embodiment with the quantity of pilot hole 102.
Reference Fig. 3 also combines shown in Fig. 5, and the first magnet portion 110 is by the first magnetic conductive board 102
It is arranged close to voice coil loudspeaker voice coil 132 side, relative including the polarity being arranged on the first magnetic conductive board 102
And spaced first magnet 1101 and be located between described first magnet 1101 first
Yoke 1100, described first magnet 1101 and described first yoke 1100 compact siro spinning technology are formed
Integrally, the magnetic pole of described first magnet 1101 is put and is put for being perpendicular to direction of vibration.Specifically
Ground, in described first magnet portion 110, two piece of first middle sandwiched of magnet 1,101 one piece first
Yoke 1100, the structure of described second magnet portion 111 is identical with the first magnet portion 110, logical
Cross the second magnetic conductive board 112 and be arranged on the offside of the first magnet portion 110, including be arranged on this second
The second magnet 1111 and the second yoke 1110 on magnetic conductive board 112；Described first magnet portion 111
Described first magnet 1101 and described second magnet 1111 of described second magnet portion 111 flat
Between-line spacing is arranged, described first yoke 1100 of described first magnet portion 110 and described second
Described second yoke 1110 parallel interval of magnet portion 111 is arranged；Described first magnet portion 110
Described first magnet 1101 and described second magnet portion 111 described second magnet 1111 it
Between interval formed described magnetic circuit system 11 magnetic gap 122.Described magnetic circuit system more than 11
To the design of magnet and putting of magnetic pole so that the electromagnetic conversion efficiency of described magnetic circuit system 11
Higher, and then improve the acoustics of microphone device 1.It is noted that this embodiment party
In formula, described magnetic circuit system 11 is only located at the driving means place plane of described vibrational system 13
Both sides, any product magnetic or magnetic conductive component are no longer set inside described driving means；Additionally,
In optional embodiment, described first magnet portion 110 can only arrange one piece of first magnet,
Described second magnet portion 111 can be omitted and replace with the magnetic conductive component with magnetic conduction function, or
Person's the first magnet portion 110 and the second magnet portion 111 the most only arrange one block of magnet.
As it is shown in figure 5, the one 1101 is arranged on the first magnetic conductive board 102, the second magnet 1111
Being arranged on the second magnetic conductive board 112, the first magnetic conductive board 102 and the second magnetic conductive board 112 are in mirror image
Symmetry, and the side being perpendicular to vibrating diaphragm 130 of above-mentioned two magnetic conductive board is at least part of towards offside
Bending extend formed kink, just to kink mutually abut.That is, the first magnetic conductive board 102
The side being perpendicular to vibrating diaphragm 130 towards offside (i.e. towards the second magnetic conductive board 112) at least portion
Dividing bending to extend and form the first kink 1020, the second magnetic conductive board 112 is perpendicular to vibrating diaphragm 130
Side extend formation the towards offside (i.e. towards the first magnetic conductive board 102) at least partly bending
Two kinks 1120, just to first kink the 1020, second kink 1120 mutually abut.
As shown in Figure 6, on the first side plate 10A and the second side plate 10B respectively with magnetic conductive board 102,
The position of 112 correspondences offers mounting groove.I.e. first side plate 10A is just to the second magnetic conductive board 112
Position offers the first mounting groove 100A, the second magnetic conductive board 10B just to the first magnetic conductive board 102
Position offer the second mounting groove 100B.And first mounting groove 100A and the second mounting groove
Sidepiece vertical with vibrating diaphragm 130 for 100B extends towards this magnetic circuit system 11 and abuts this magnetic circuit system
The positive stop lug boss of system 11, this positive stop lug boss includes: the first limiting section 104A and the second limiting section
104B。
Specifically, shown in Fig. 7-8, the first magnet 1101 is by the first magnetic conductive board 102
It is arranged in the first mounting groove 100A, and mounting groove 100A is perpendicular to the both sides court of vibrating diaphragm 130
The first limiting section of this first magnet portion 110 of abutting it is symmetrically extended out to the first magnet portion 110
104A, and the first limiting section 104A abut the first magnetic conductive board 102 homonymy adjacent two curved
Abut between folding part 1020 and with this kink 1020.In like manner, the second mounting groove 100B hangs down
Directly also it is symmetrically extended out this second magnetic of abutting towards the second magnet portion 111 in the both sides of vibrating diaphragm 130
Second limiting section 104B of body 111, and the second limiting section 104B abuts the second magnetic conductive board 112
Homonymy adjacent two kinks 1120 between and abut with this kink 1120.
With reference to Fig. 7, owing to the second magnet portion 111 is arranged near voice coil loudspeaker voice coil 132, this area is conventional
Technical staff knows, and voice coil loudspeaker voice coil is respectively provided with lead-in wire.Therefore towards away from sound on the second limiting section 104B
The direction depression of circle 132 is formed with the relief portion of the lead-in wire (not shown) dodging voice coil loudspeaker voice coil 132
101.Preferably, relief portion 101 is curved.In alternative embodiments, dodge described in
Portion 101 can be provided only on the side of the second limiting section 104B, in the embodiment shown in Fig. 7
In, the both sides of the second limiting section 104B are respectively provided with relief portion, and symmetrically, are thus pacifying
During dress voice coil loudspeaker voice coil 132, putting of voice coil loudspeaker voice coil is more convenient, is more beneficial for installing.
As shown in figs. 9-11, in the second preferred embodiment of the present utility model, the present embodiment
Microphone device also include corresponding vibrational system, magnetic circuit system and house this vibrational system with
The shell 20 of magnetic circuit system, the wherein concrete structure of this vibrational system and this vibrational system and magnetic
The relative position relation of road system is similar with first embodiment, does not repeats at this.
Similar to above-mentioned first embodiment, shell 20 has both ends open and inner hollow equally
Structure, shell 20 includes the first side plate 20A and being mutually fastened and being oppositely arranged
The position that two side plate 20B, the first side plate 20A and the second side plate 20B are interlocked is towards described
Second side plate 20B is protruding with projection 202, accordingly, the first side plate 20A offers with prominent
Play 202 suitable pilot holes 203.Should be appreciated that the position of projection 202 and pilot hole 203
Put and can also exchange, and quantity is not limited to four shown in Fig. 9, it is also possible to corresponding increasing adds deduct
Few.During assembling, by hot melting way by the projection 203 of this column and pilot hole 202 grafting,
Both ensure that the first side plate 20A's and the second side plate 20B accurately assembles location, simultaneously hot melt
Mode also can be effectively improved the first side plate 20A and the fixing intensity of the second side plate 20B.
In the present embodiment, the first magnetic conductive board 2102 and the second magnetic conductive board 2112 are tabular
Structure, accordingly, the first side plate 20A offers the first mounting groove 200A, the second side plate 20B
On offer the second mounting groove 200B, the first magnetic conductive board 2102 and the second magnetic conductive board 2112 are respectively
It is arranged in the first mounting groove 200A and the second mounting groove 200B.Further, first install
Groove 200A and the second mounting groove 200B sidewall have corresponding magnetic conductive board 2102,2112 phase
The subsider 209 joined, corresponding magnetic conductive board 2102,2112 is fixed by subsider 209.
With reference to shown in Figure 10-11, the first magnet portion 210 is the most parallel with the second magnet portion 211
It is arranged on the first magnetic conductive board 2102 and the second magnetic conductive board 2112 surface of correspondence, and first installs
The first magnet portion 210 and the second magnet it is respectively facing inside groove 200A and the second mounting groove 200B
The positive stop lug boss abutting respective magnet portion 210,211, this positive stop lug boss bag extend in portion 211
Include the first limiting section 204A being arranged on the first mounting groove 200A and be arranged on the second peace
The second limiting section 204B on tankage 200B.Similar with first embodiment, the first limiting section
204A is symmetricly set on the both sides being perpendicular to vibrating diaphragm (not shown) of the first mounting groove 200A also
Abutting the first magnet portion 210, the quantity of unilateral first limiting section 204A can be not limited to one
Or it is multiple.In like manner, the second limiting section 204B is symmetricly set on the vertical of the second mounting groove 200B
In the both sides of vibrating diaphragm (not shown) and abut the second magnet portion 211, unilateral second limiting section 204B
Quantity can be not limited to one or more.With voice coil loudspeaker voice coil 232 on this external second limiting section 204B
Relative position caves in towards the direction away from voice coil loudspeaker voice coil 232 and is formed with the lead-in wire dodging voice coil loudspeaker voice coil 232
The relief portion 201 of (not shown), the lead-in wire of voice coil loudspeaker voice coil 232 can be along voice coil loudspeaker voice coil 232 in the present embodiment
Stretch out in the both sides segmental arc of the second limiting section 204B, be especially preferably this both sides segmental arc
End position stretches out, and in the embodiment described in Figure 10, relief portion 201 is symmetricly set on sound
Enclose the both sides of 232, and the quantity of unilateral relief portion 201 is 2, respectively with corresponding voice coil loudspeaker voice coil arc
The end position of section is the most right, therefore facilitates the installation of voice coil loudspeaker voice coil 232.Should be appreciated that in this practicality
In other novel preferred embodiments, relief portion 201 can be only arranged at the second limiting section
The side of 204B, and quantity is not limited to one or more.
The foregoing is only embodiment of the present utility model, not thereby limit of the present utility model
The scope of the claims, every equivalent structure utilizing the utility model specification and accompanying drawing content to be made or
Equivalence flow process conversion, or directly or indirectly it is used in other relevant technical field, the most in like manner wrap
Include in scope of patent protection of the present utility model.
Claims (10)
1. a microphone device, comprising:
Vibrational system, described vibrational system includes vibrating diaphragm and drives the flat of described diaphragm oscillations
Driving means, described driving means place plane is perpendicular with described vibrating diaphragm place plane；
Magnetic circuit system, described magnetic circuit system is arranged at the both sides of described driving means place plane,
The magnetic gap accommodating described driving means is formed in the middle of described magnetic circuit system；
And house described vibrational system and the shell of described magnetic circuit system；
It is characterized in that, described shell both ends open and inner hollow, described vibrating diaphragm covers in institute
Stating shell one end, described shell includes the first side plate and being mutually fastened and being oppositely arranged
Two side plates, the position that described first side plate and described second side plate are interlocked is towards described second
Side plate is protruding with projection, and described second side plate offers the assembling suitable with described projection
Hole.
Microphone device the most according to claim 1, it is characterised in that described projection is
Hot melt columnar protrusions.
Microphone device the most according to claim 2, it is characterised in that described first side
The mounting groove just to described magnetic circuit system, described magnetic is offered on plate and/or described second side plate
Road system is arranged in described mounting groove.
Microphone device the most according to claim 3, it is characterised in that described mounting groove
The positive stop lug boss abutting described magnetic circuit system is extended towards described magnetic circuit system.
Microphone device the most according to claim 4, it is characterised in that described limit convex
Platform includes the first limiting section being symmetricly set on described first side plate, and is symmetricly set on institute
State the second limiting section on the second side plate.
Microphone device the most according to claim 5, it is characterised in that described driving fills
Put the support including vibrating diaphragm described in vertical support and the voice coil loudspeaker voice coil being parallel to described support, described sound
Circle arranges and is attached at the side surface of described support, described voice coil loudspeaker voice coil end near described second side plate
There is lead-in wire, described second limiting section dodges institute towards caving in be formed with away from described voice coil loudspeaker voice coil direction
State the relief portion of lead-in wire.
Microphone device the most according to claim 6, it is characterised in that described relief portion
For arc.
Microphone device the most according to claim 6, it is characterised in that described magnetic circuit system
System includes being respectively arranged on the magnet portion of described driving means both sides, and described magnet portion is respectively by one
Magnetic conductive board is arranged in described mounting groove.
Microphone device the most according to claim 8, it is characterised in that lead described in two
Magnetic sheet is specular, and the side that each described magnetic conductive board is perpendicular to described vibrating diaphragm is at least part of
Be bent to form towards offside extend kink, just to described kink mutually abut；Institute
Between stating positive stop lug boss sandwiched and being connected to adjacent two described kinks of same described side.
Microphone device the most according to claim 8, it is characterised in that described magnetic conductive board
Plate-shaped, described mounting groove has the subsider corresponding with described magnetic conductive board, described magnetic conductive board
Being placed in described subsider, described magnet portion is parallelly mounted on described magnetic conductive board respectively, institute
State magnet portion to be perpendicular to the both sides of described vibrating diaphragm and abut described positive stop lug boss respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620082179.4U CN205545908U (en) | 2016-01-27 | 2016-01-27 | Sounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620082179.4U CN205545908U (en) | 2016-01-27 | 2016-01-27 | Sounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205545908U true CN205545908U (en) | 2016-08-31 |
Family
ID=56772343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620082179.4U Expired - Fee Related CN205545908U (en) | 2016-01-27 | 2016-01-27 | Sounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205545908U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106851503A (en) * | 2017-03-06 | 2017-06-13 | 重庆市冠音泰科技有限公司 | A kind of electroacoustic structure of magnetic altogether |
| CN108302286A (en) * | 2018-03-08 | 2018-07-20 | 海宁瑞峰祥宇影视制作有限公司 | Video display produce the bindiny mechanism of bracket middle girder and auxiliary girder |
-
2016
- 2016-01-27 CN CN201620082179.4U patent/CN205545908U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106851503A (en) * | 2017-03-06 | 2017-06-13 | 重庆市冠音泰科技有限公司 | A kind of electroacoustic structure of magnetic altogether |
| CN108302286A (en) * | 2018-03-08 | 2018-07-20 | 海宁瑞峰祥宇影视制作有限公司 | Video display produce the bindiny mechanism of bracket middle girder and auxiliary girder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20210127 |