CN206850992U - A kind of supra-aural earphone - Google Patents
A kind of supra-aural earphone Download PDFInfo
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- CN206850992U CN206850992U CN201720682112.9U CN201720682112U CN206850992U CN 206850992 U CN206850992 U CN 206850992U CN 201720682112 U CN201720682112 U CN 201720682112U CN 206850992 U CN206850992 U CN 206850992U
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- earphone
- coil loudspeaker
- noise reduction
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Abstract
It the utility model is related to a kind of supra-aural earphone, belong to ear phone technology field, it includes left ear earphone, auris dextra earphone and the noise reduction controller electrically connected respectively with left ear earphone and auris dextra earphone by earphone cord, and left ear earphone and auris dextra earphone include earphone portion, and earphone portion includes：The big moving-coil loudspeaker and small moving-coil loudspeaker, big moving-coil loudspeaker or small moving-coil loudspeaker of electrical connection are electrically connected by earphone cord with noise reduction controller；Noise reduction microphone, the noise reduction microphone are arranged on big moving-coil loudspeaker or small moving-coil loudspeaker and electrically connected by earphone cord with noise reduction controller.The utility model in left ear earphone, auris dextra earphone by setting big moving-coil loudspeaker and small moving-coil loudspeaker, so that the mutual supplement with each other's advantages of small one and large one two moving-coil loudspeaker, user is allowd to enjoy the tonequality of high-quality, in addition, by setting noise reduction controller, it can eliminate with interfering noise, make audition purer, improve the Experience Degree of user.
Description
Technical field
It the utility model is related to ear phone technology field, more particularly to a kind of supra-aural earphone.
Background technology
Earphone in the market is still driven in technical elements using single action circle, and form is traditional In-Ear Headphones, for
Tonequality and ergonomic design have certain limitation.
With the development of earphone correlation technique, people are more next to the profile, tonequality and noise reduction of earphone etc. performance requirement
It is higher, and it is existing it is double acting ensphere aural headphone be divided into coaxial-type it is double acting circle and the double acting circle of block form, double acting circle technology belong to compared with
For emerging technology, and the earphone of double moving coil types on tonequality than more prominent, typically utilize small one and large one loudspeaker, big loudspeaker
In tuning project above bass, toy trumpet projects above alt in tuning, and big toy trumpet has complementary advantages, and leads in terms of tonequality
Often advantage is had more than single action circle.But good effect can not be reached for the anti-acoustic capability of existing double moving-coil earphones.
Generally, the double acting circle of block form is placed side by side using the loudspeaker of equal size, sets the senior middle school of two loudspeaker respectively
Low-frequency range, coordinate and occur, reach the tonequality better than single action circle loudspeaker.But quality itself is identical due to equal loudspeaker, tonequality is adjusted
In the presence of certain limitation.
Utility model content
The purpose of this utility model is to propose a kind of supra-aural earphone, can solve the problem that earphone of the prior art in tonequality
And the aspect of noise reduction two can not meet the technical problem of user's request simultaneously.
To use following technical scheme up to this purpose, the utility model：
A kind of supra-aural earphone, including：Left ear earphone, auris dextra earphone and by earphone cord respectively with the left ear earphone and
The noise reduction controller of the auris dextra earphone electrical connection, the left ear earphone and the auris dextra earphone include earphone portion, the ear
Machine portion includes：
The big moving-coil loudspeaker and small moving-coil loudspeaker of electrical connection, the big moving-coil loudspeaker or the small moving-coil loudspeaker pass through described
Earphone cord electrically connects with the noise reduction controller；
Noise reduction microphone, the noise reduction microphone are arranged on big moving-coil loudspeaker or the small moving-coil loudspeaker and by described
Earphone cord electrically connects with the noise reduction controller.
Further, the earphone portion also includes lid, horn basin rack and the earphone provided with cavity on the earphone that sets gradually
Lower casing, the horn basin rack are connected in the cavity of the earphone lower casing, and lid is connected in the earphone lower casing on the earphone
One end of cavity；
The big moving-coil loudspeaker and the small moving-coil loudspeaker are arranged in the horn basin rack side by side.
Further, the other end of the earphone lower casing is arranged with is obliquely installed relative to the other end of the earphone lower casing
Ante-chamber go out sound mouth；
The earphone lower casing appearance profile is adapted with the cavity of concha of human body ear；
The ante-chamber goes out sound mouth appearance profile and is adapted with the external auditory meatus of human body.
When human body wears the supra-aural earphone, the earphone lower casing is placed in the cavity of concha of human body, and the ante-chamber goes out
Sound mouth is stretched into the external auditory meatus of human body.
Further, the horn basin rack is provided with the groove of two and column distribution, and two and institute are covered with the earphone
State the installation through-hole that groove is correspondingly arranged；
The groove is respectively stretched at the both ends of the big moving-coil loudspeaker and the both ends of the small moving-coil loudspeaker and installation is logical
In hole；
The groove goes out sound mouth with the ante-chamber and is connected.
Further, two one end of the installation through-hole away from the groove are arranged with top cover, close to described big dynamic
One end that the top cover of circle loudspeaker covers on the earphone is provided with noise inlet hole；
One end of the earphone cord penetrate close to the big moving-coil loudspeaker the top cover and with the big moving-coil loudspeaker electricity
Connection；
The noise reduction microphone is placed in the small moving-coil loudspeaker and between the top cover of the small moving-coil loudspeaker.
Further, the earphone cord includes the ear-hanger and connecting portion set gradually, the ear-hanger and the earphone
Portion electrically connects, and the connecting portion electrically connects with the noise reduction controller.
Further, the ear-hanger is auricle shape structure.
Further, the supra-aural earphone also includes patch, the patch respectively with the noise reduction controller and
External equipment electrically connects.
Further, the noise reduction controller includes PCB, the PCB be provided with noise reduction chip, battery and
Noise reduction switch, the noise reduction switch electrically connect with the noise reduction chip and the battery；
The patch and earphone cord electrically connect with the PCB.
Further, the patch is provided with headset plug, and the patch passes through the headset plug and external equipment
Electrical connection.
Beneficial effect：
The utility model in left ear earphone, auris dextra earphone by setting big moving-coil loudspeaker and small moving-coil loudspeaker, wherein greatly
Moving-coil loudspeaker and small moving-coil loudspeaker dimensionally have point of size, therefore bass during typhon protrudes in terms of tuning, toy trumpet protrude
High pitch so that the mutual supplement with each other's advantages of small one and large one two moving-coil loudspeaker so that user can enjoy the tonequality of high-quality, this
Outside, utility model is also provided with noise reduction controller so that product has active noise reduction function, can eliminate with interfering miscellaneous
Sound, make audition purer, improve the Experience Degree of user.
Brief description of the drawings
Fig. 1 is the structural representation of supra-aural earphone provided by the utility model.
Fig. 2 is the explosive view in the earphone portion of supra-aural earphone provided by the utility model；
Fig. 3 is the explosive view of the noise reduction controller of supra-aural earphone provided by the utility model.
In figure：
1st, auris dextra earphone；2nd, left ear earphone；3rd, earphone cord；31st, ear-hanger；32nd, connecting portion；4th, noise reduction controller；41、
PCB；42nd, noise reduction chip；43rd, battery；44th, noise reduction switch；45th, top shell；451st, receive calls button；452nd, it is transaudient
Portion；46th, drain pan；461st, geometrical clamp；5th, earphone portion；51st, big moving-coil loudspeaker；52nd, small moving-coil loudspeaker；53rd, covered on earphone；531st, pacify
Fill through hole；532nd, top cover；5321st, noise introduction hole；54th, horn basin rack；541st, groove；55th, earphone lower casing；56th, ante-chamber goes out sound
Mouth；6th, noise reduction microphone；7th, patch；71st, headset plug.
Embodiment
In order that those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings and pass through
Embodiment further illustrates the technical solution of the utility model.
A kind of supra-aural earphone is present embodiments provided, as shown in Figure 1-Figure 3, including：Auris dextra earphone 1, left ear earphone 2 and
The noise reduction controller 4 electrically connected respectively with the left ear earphone 1 and the auris dextra earphone 2 by earphone cord 3, the left ear earphone
1 and the auris dextra earphone 2 include earphone portion 5, the earphone portion 5 includes：The big moving-coil loudspeaker 51 and small moving-coil loudspeaker of electrical connection
52, the big moving-coil loudspeaker 51 or the small moving-coil loudspeaker 52 are electrically connected by the earphone cord 3 and the noise reduction controller 4
Connect；Noise reduction microphone 6, the noise reduction microphone 6 are arranged on big moving-coil loudspeaker 51 or the small moving-coil loudspeaker 52 and pass through institute
Earphone cord 3 is stated to electrically connect with the noise reduction controller 4.Wherein, the size of big moving-coil loudspeaker 51 is more than small moving-coil loudspeaker 52
Cylindrical structural, and the diameter of big moving-coil loudspeaker 51 is more than the diameter of small moving-coil loudspeaker 52.Preferably, the present embodiment is using big
Moving-coil loudspeaker 51 electrically connect with earphone cord 3.
Big moving-coil loudspeaker 51 are electrically connected with noise reduction microphone 6 by earphone cord 3 with noise reduction controller 4, it should be pointed out that
It is that big moving-coil loudspeaker 51 are electrically connected from noise reduction microphone 6 by the different circuits in earphone cord 3 with noise reduction controller 4.
The present embodiment by setting big moving-coil loudspeaker 51 and small moving-coil loudspeaker 52 in auris dextra earphone 1 and left ear earphone 2,
Wherein big moving-coil loudspeaker 51 and small moving-coil loudspeaker 52 dimensionally have size point, therefore tuning in terms of typhon protrude in bass,
Toy trumpet protrudes high pitch so that the mutual supplement with each other's advantages of small one and large one two moving-coil loudspeaker so that user can enjoy high-quality
Tonequality, in addition, the present embodiment is also provided with noise reduction controller 4 so that product has active noise reduction function, and can eliminate has
Interfering noise, make audition purer, improve the Experience Degree of user.
As shown in Fig. 2 the earphone portion 5 also includes on the earphone that sets gradually lid 53, horn basin rack 54 and provided with cavity
Earphone lower casing 55, the horn basin rack 54 is connected in the cavity of the earphone lower casing 55, and lid 53 is connected on the earphone
One end of the cavity of the earphone lower casing 55, the big moving-coil loudspeaker 51 and the small moving-coil loudspeaker 52 are arranged at described side by side
In horn basin rack 54.
The other end of the earphone lower casing 55 is arranged be obliquely installed relative to the other end of the earphone lower casing 55 before
Chamber goes out sound mouth 56, and ante-chamber goes out the angle of inclination of the other end relative to earphone lower casing 55 of sound mouth 56 in the present embodiment, with human body
External auditory meatus it is same or like relative to the extension angle of cavity of concha；The appearance profile of the earphone lower casing 55 goes out sound mouth with ante-chamber
56 appearance profile is adapted with the cavity of concha and external auditory meatus of human body respectively；Above-mentioned ante-chamber go out sound mouth 56 be obliquely installed and ear
The profile of machine lower casing 55, which is set, meets ergonomic design, when human body wears the supra-aural earphone, under the earphone
Shell 55 is placed in the cavity of concha of human body, and the ante-chamber goes out sound mouth 56 and stretched into the external auditory meatus of human body.So that for wearing this reality
When applying the earphone of example offer, earphone portion 5 can be good at matching with the shape of human body ear, reduce earphone pair when user uses
The constriction of ear, wear more comfortable.
One end that above-mentioned ante-chamber goes out sound mouth 56 is arranged with silicon rubber cup, adds the supra-aural that user wears the present embodiment offer
Comfortableness during earphone.
The horn basin rack 54 is provided with the groove 541 of two and column distribution, on the earphone lid 53 be provided with two with it is described
The installation through-hole 531 that groove 541 is correspondingly arranged；The both ends of the big moving-coil loudspeaker 51 and the both ends of the small moving-coil loudspeaker 52 are equal
It is respectively protruding into the groove 541 and installation through-hole 531；The groove 541 goes out sound mouth 56 with the ante-chamber and is connected.It is described
Groove 541 goes out sound mouth 56 with the ante-chamber and is connected, specifically, the bottom of two grooves 541 is equipped with sound mouth, it is described
Sound mouth goes out sound mouth 56 with ante-chamber and connected, so that sound is transmitted to the ante-chamber by big moving-coil loudspeaker 51 and small moving-coil loudspeaker 52
Sound mouth 56, and then sound mouth 56 is gone out by ante-chamber and is passed to human ear.
Two one end of the installation through-hole 531 away from the groove 541 are arranged with top cover 532, close to described big dynamic
The top cover 532 of circle loudspeaker 51 is provided with noise inlet hole 5321 away from one end of lid 53 on the earphone；The earphone cord 3
One end penetrates the top cover 532 close to the big moving-coil loudspeaker 51 and electrically connected with the big moving-coil loudspeaker 51；The noise reduction
Microphone 6 is placed in the small moving-coil loudspeaker 52 and between the top cover 532 of the small moving-coil loudspeaker 52.The noise is inhaled
Enter hole 5321 to be used for noise transmission to noise reduction microphone 6, and by earphone cord 3 by noise transmission to noise reduction chip 42.
The earphone cord 3 includes the ear-hanger 31 and connecting portion 32 set gradually, the ear-hanger 31 and the earphone portion 5
Electrical connection, the connecting portion 32 electrically connect with the noise reduction controller 4.Wherein, the ear-hanger 31 is auricle shape structure, works as people
When body wears the supra-aural earphone, the ear-hanger 31 hooks and fits in the auricle of human body.So that for wearing this reality
When applying the earphone of example offer, it is firm that wearing is more stablized.
As shown in figure 1, the supra-aural earphone that the present embodiment provides also includes patch 7, the patch 7 respectively with it is described
Noise reduction controller 4 and external equipment electrical connection.
As shown in figure 3, the noise reduction controller 4 includes PCB 41, the PCB 41 is provided with noise reduction chip
42nd, battery 43 and noise reduction switch 44, the noise reduction switch 44 electrically connect with the noise reduction chip 42 and the battery 43 respectively；Institute
Patch 7 and earphone cord 3 is stated to electrically connect with the PCB 41.Wherein, the patch 7 is provided with headset plug 71, institute
Headset plug 71 is stated to electrically connect with external equipment.
When installing the earphone that the present embodiment provides, it is necessary to which the ante-chamber of left ear earphone 2 is gone out into sound mouth 56 and auris dextra earphone 1
Ante-chamber go out sound mouth 56 and be oppositely arranged, meet ergonomic design so that user conveniently wears earphone, while adds user
Comfortableness when wearing earphone.
When the supra-aural earphone that user is provided using the present embodiment, earphone is worn on ear, opens noise reduction switch
44, now, decrease of noise functions open, noise by noise inlet hole 5321 enter noise reduction microphone 6, noise respectively by left ear earphone 2,
After the noise reduction microphone 6 of auris dextra earphone 1 sucks, the noise reduction chip 42 that is transferred to by earphone cord 3 in noise reduction controller 4, this
When audio signal also simultaneously transmit to noise reduction chip 42, noise in the chips to enter with real audio signal by headset plug 71
Row matching treatment, the identification function that chip is carried by itself, the noise of opposite phase is eliminated, by the audio signal after processing
Transmit again to left ear earphone 2 and auris dextra earphone 1, so as to reach the purpose for reducing ambient noise.
Above-mentioned noise reduction controller 4 also includes top shell 45 and the drain pan 46 with the clamping of top shell 45, the noise reduction chip 42
It is placed in battery 43 in the space that the top shell 45 and drain pan 46 formed, the drain pan 46 is provided with geometrical clamp 461, for by noise reduction
Controller 4 is fixed.The PCB 41 is additionally provided with receive calls switch and microphone of conversing, and the top shell 45 is provided with and institute
State receive calls button 451 and the transaudient portion 452 that switch and call microphone are correspondingly arranged that receive calls, the transaudient portion 452
For the sound of user to be reached into call microphone.
It is pointed out that PCB 41 includes two lines road, and when noise reduction switch 44 is closed, big moving-coil loudspeaker 51
Turned on small moving-coil loudspeaker 52, sound is directly exported without any processing in PCB 41 by the audio that patch 7 imports
Frequently, that is, sound function is listened not influenceed independent progress by noise reduction；When noise reduction switch 44 is opened, noise reduction chip 42 is also led with battery 43
Logical, the noise reduction microphone 6 in earphone portion 5 picks up the noise in environment, and will by noise transmission to noise reduction chip 42, noise reduction chip 42
Noise signal in environment carries out real-time program computing with the audio imported by patch 7, by tonequality curve and the noise of absorption
Curve phase non-colinear position, draw the pure tonequality curve after noise elimination.And operation result is transmitted to big moving-coil by earphone cord 3
Loudspeaker 51 and small moving-coil loudspeaker 52；Close or open it is pointed out that noise reduction switch 44 is in, call microphone is online
Conducting state is in road, and is turned on and off by the switch control call microphone that receives calls, i.e., the present embodiment carries
For the earphone of confession when noise reduction switch 44 is in and turns off or on state, call function is unaffected.
The present embodiment, which uses, is combined decrease of noise functions with double acting circle function phase, overcomes following difficulty：
First, the frequency dividing for handling two moving-coil loudspeaker well is not easily accomplished, and the frequency dividing for handling two moving-coil loudspeaker well can
Big moving-coil loudspeaker 51 are made to give full play to low frequency advantage, small moving-coil loudspeaker 52 give full play to medium-high frequency advantage, but want to realize and divide
The three natural transition of frequency between big toy trumpet after frequency, are very difficult to, the linking of the sonic profile of two moving-coil loudspeaker and mistake
It is bad to cross processing, the Experience Degree of user can be reduced, such as, during using existing double moving-coil earphone auditions, middle high bass occurs
Unexpected switching or user can significantly experience uncomfortable switching.
Secondly, the big moving-coil loudspeaker 51 and the fluctuation ratio of the sonic profile of small moving-coil loudspeaker 52 that the present embodiment provides are general
Loudspeaker are big, because the phase curve of the sound after noise reduction is relatively smooth, so when two kinds of technologies match, two kojis
There is larger contrast in line, noise reduction is not readily reachable by good state.
The present embodiment is optimized by the sonic profile of two moving-coil loudspeaker of different sizes of optimization, earphone cavity body structure
The algorithm of noise reduction chip 42, makes the processing function of the sonic profile of loudspeaker, corresponding cavity body structure, and chip can reach most
Good state, the problem of double acting two kinds of technology matchings of circle and noise reduction are difficult is overcome, user is enjoyed the tonequality of high-quality
The experience of noise reduction can be enjoyed again.
Pay attention to, general principle and principal character of the present utility model and of the present utility model excellent has been shown and described above
Point.It should be understood by those skilled in the art that the utility model is not limited to the embodiments described above, above-mentioned embodiment and say
Simply illustrate principle of the present utility model described in bright book, on the premise of the spirit and scope of the utility model is not departed from, this
Utility model also has various changes and modifications, and these changes and improvements are both fallen within claimed the scope of the utility model,
Claimed scope of the present utility model is by appended claims and its equivalent thereof.
Claims (10)
- A kind of 1. supra-aural earphone, it is characterised in that including：Auris dextra earphone (1), left ear earphone (2) and pass through earphone cord (3) point The noise reduction controller (4) not electrically connected with the left ear earphone (1) and the auris dextra earphone (2), the left ear earphone (1) and institute Stating auris dextra earphone (2) includes earphone portion (5), and the earphone portion (5) includes：The big moving-coil loudspeaker (51) of electrical connection and small moving-coil loudspeaker (52), the big moving-coil loudspeaker (51) or the small moving-coil loudspeaker (52) electrically connected by the earphone cord (3) with the noise reduction controller (4)；Noise reduction microphone (6), the noise reduction microphone (6) are arranged on big moving-coil loudspeaker (51) or the small moving-coil loudspeaker (52) And electrically connected by the earphone cord (3) with the noise reduction controller (4).
- 2. supra-aural earphone according to claim 1, it is characterised in that the earphone portion (5) also includes what is set gradually (53), horn basin rack (54) and the earphone lower casing (55) provided with cavity are covered on earphone, the horn basin rack (54) is connected in described One end that (53) are connected in the cavity of the earphone lower casing (55) is covered in the cavity of earphone lower casing (55), on the earphone；The big moving-coil loudspeaker (51) and the small moving-coil loudspeaker (52) are arranged in the horn basin rack (54) side by side.
- 3. supra-aural earphone according to claim 2, it is characterised in that the other end of the earphone lower casing (55) is arranged with The ante-chamber being obliquely installed relative to the other end of the earphone lower casing (55) goes out sound mouth (56)；The appearance profile of the earphone lower casing (55) is adapted with the cavity of concha of human body ear；The appearance profile that the ante-chamber goes out sound mouth (56) is adapted with the external auditory meatus of human body.
- 4. supra-aural earphone according to claim 3, it is characterised in that the horn basin rack (54) is provided with two and divided side by side The groove (541) of cloth, lid (53) is provided with two installation through-holes (531) being correspondingly arranged with the groove (541) on the earphone；The groove is respectively stretched at the both ends of the big moving-coil loudspeaker (51) and the both ends of the small moving-coil loudspeaker (52) (541) and in installation through-hole (531)；The groove (541) goes out sound mouth (56) with the ante-chamber and is connected.
- 5. supra-aural earphone according to claim 4, it is characterised in that two installation through-holes (531) are away from described One end of groove (541) is arranged with top cover (532), and the top cover (532) close to the big moving-coil loudspeaker (51) deviates from institute The one end for stating lid (53) on earphone is provided with noise inlet hole (5321)；One end of the earphone cord (3) penetrates the top cover (532) close to the big moving-coil loudspeaker (51) and moved greatly with described Enclose loudspeaker (51) electrical connection；The noise reduction microphone (6) is placed in the small moving-coil loudspeaker (52) and the top cover close to the small moving-coil loudspeaker (52) (532) between.
- 6. supra-aural earphone according to claim 2, it is characterised in that the earphone cord (3) includes the ear set gradually Extension portion (31) and connecting portion (32), the ear-hanger (31) electrically connect with the earphone portion (5), the connecting portion (32) with it is described Noise reduction controller (4) electrically connects.
- 7. supra-aural earphone according to claim 6, it is characterised in that the ear-hanger (31) is auricle shape structure.
- 8. supra-aural earphone according to claim 7, it is characterised in that the supra-aural earphone also includes patch (7), The patch (7) electrically connects with the noise reduction controller (4) and external equipment respectively.
- 9. supra-aural earphone according to claim 8, it is characterised in that the noise reduction controller (4) includes PCB (41), the PCB (41) is provided with noise reduction chip (42), battery (43) and noise reduction switch (44), the noise reduction switch (44) electrically connected with the noise reduction chip (42) and the battery (43)；The patch (7) and earphone cord (3) electrically connect with the PCB (41).
- 10. supra-aural earphone according to claim 9, it is characterised in that the patch (7) is provided with headset plug (71), the patch (7) is electrically connected by the headset plug (71) with external equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720682112.9U CN206850992U (en) | 2017-06-13 | 2017-06-13 | A kind of supra-aural earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720682112.9U CN206850992U (en) | 2017-06-13 | 2017-06-13 | A kind of supra-aural earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206850992U true CN206850992U (en) | 2018-01-05 |
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ID=60799842
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720682112.9U Expired - Fee Related CN206850992U (en) | 2017-06-13 | 2017-06-13 | A kind of supra-aural earphone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110300344A (en) * | 2019-03-25 | 2019-10-01 | 深圳市增长点科技有限公司 | Adaptive noise reduction earphone |
-
2017
- 2017-06-13 CN CN201720682112.9U patent/CN206850992U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110300344A (en) * | 2019-03-25 | 2019-10-01 | 深圳市增长点科技有限公司 | Adaptive noise reduction earphone |
| CN110300344B (en) * | 2019-03-25 | 2024-06-14 | 深圳市增长点科技有限公司 | Self-adaptive noise reduction earphone |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 Termination date: 20210613 |
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| CF01 | Termination of patent right due to non-payment of annual fee |