CN206834199U - A kind of LED patch supports - Google Patents
A kind of LED patch supports Download PDFInfo
- Publication number
- CN206834199U CN206834199U CN201720164503.1U CN201720164503U CN206834199U CN 206834199 U CN206834199 U CN 206834199U CN 201720164503 U CN201720164503 U CN 201720164503U CN 206834199 U CN206834199 U CN 206834199U
- Authority
- CN
- China
- Prior art keywords
- connecting portion
- hole
- pin
- flat board
- scolding tin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 62
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000005452 bending Methods 0.000 claims abstract description 31
- 238000003466 welding Methods 0.000 claims description 27
- 238000005476 soldering Methods 0.000 description 11
- 230000001012 protector Effects 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 238000001149 thermolysis Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005538 encapsulation Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Led Device Packages (AREA)
Abstract
A kind of LED patch supports, it includes pedestal, LED chip, the first scolding tin pin and the second scolding tin pin, base interior is provided with a groove, the first scolding tin pin includes the first flat board, first connecting portion, the first bending pin and the first endpiece, the first connecting portion both ends connect the first flat board and the first bending pin respectively, the first endpiece is extended in the first bending pin end, and the second scolding tin pin includes the second flat board, second connecting portion, the second bending pin and the second endpiece.The LED patch supports increase LED chip and the contact area of the first scolding tin pin, effective to strengthen LED chip and the heat transfer of the first scolding tin pin, effectively by the heat derives of LED chip, the further service life for extending LED chip.
Description
【Technical field】
It the utility model is related to LED and LED patch support technical fields, more particularly to a kind of LED patch supports.
【Background technology】
The mobile electronic devices such as smart mobile phone have turned into an indispensable part in people's life, and these electronic equipments lead to
Normal surface sets a display screen, and LED lamp bead is set in display backlight module as light source.
LED chip is fabricated to the LED lamp bead with actual illumination effect in production process, generally by LED during making
For chip attachment on support, this support is exactly LED patch supports.In the prior art, LED patch supports include pedestal and two
Individual scolding tin pin, pedestal is interior to be used to place LED chip, and the both ends of LED chip are electrically connected with by spot welding and two scolding tin pin respectively,
Two scolding tin pin external power supply both positive and negative polarities, but there are the following problems for LED patch supports at present, LED chip meeting in luminescence process
Produce substantial amounts of heat, if heat can not in time diversion LED chip when can influence the service life of LED chip.
【Utility model content】
In order to overcome prior art problem, the utility model provides a kind of LED patch supports.
The scheme that the utility model solves technical problem is to provide a kind of LED patch supports, including pedestal, LED chip, the
One scolding tin pin and the second scolding tin pin, base interior are provided with a groove, and the first scolding tin pin includes the first flat board, the first connection
Portion, the first bending pin and the first endpiece, the first connecting portion both ends connect the first flat board and the first bending pin respectively, and this first
The first endpiece is extended in bending pin end, and the second scolding tin pin includes the second flat board, second connecting portion, the second bending pin and the
Two endpieces, the second connecting portion both ends connect the second flat board and the second bending pin respectively, and the second bending pin end is extended
Second endpiece, respectively in groove, first connecting portion and second connecting portion are embedded in base for first flat board and the second flat board
Seat, the first bending pin and the first endpiece, the second bending pin and the second endpiece are located at outside pedestal；The both ends difference of the pedestal
Offer and run through the hole of pedestal first and the second hole, first connecting portion and second connecting portion respectively positioned at first hole and
In second hole；Holding tank is offered on first flat board, the LED chip is placed in the holding tank, and and holding tank
Inwall contact.
Preferably, the thickness of the LED chip is more than the depth of radiating groove.
Preferably, the first lead and the second lead are drawn in the both ends of the LED chip respectively, are opened up on first flat board
There are the first welding hole, the second welding hole offered on second flat board, first lead inserts the first welding hole, described
Second lead inserts the welding of the second welding hole.
Preferably, the first salient angle, the side protrusion second of the second connecting portion are protruded in the side of the first connecting portion
Salient angle, first salient angle and the second salient angle are brought into close contact with the first hole and the second hole inwall respectively.
Preferably, the first connecting portion further comprises the first arc body, and first salient angle is located at the first arc body
Side, the second connecting portion further comprises the second arc body, the edge of first arc body and the first hole inwall
Between there is gap, there is gap between the edge of second arc body and the second hole inwall.
Preferably, second salient angle is located at the side of the second arc body, and first arc body and the second arc body are in
90 ° of arc shapes.
Compared with prior art, the utility model has advantages below：
1st, by be provided with the first soldering pin on the first salient angle and the second scolding tin pin set the second salient angle respectively with pedestal
On the first hole for opening up and the second hole be fitted close so that the second scolding tin pin and the second scolding tin pin can be fixedly attached to
On LED patch supports.
Further, holding tank is offered on the first scolding tin pin, LED chip is placed in the holding tank, with holding tank
Inwall contact, increase the contact area of LED chip and holding tank, it is effective to strengthen LED chip and the heat biography of the first scolding tin pin
Pass, effectively by the service life of the heat derives of LED chip, further extension LED chip.
2nd, by offering the first welding hole, the welding hole offered on the second scolding tin pin, LED core on the first scolding tin pin
The first lead and the second lead are drawn in the both ends of piece respectively, and the first lead inserts the first welding hole, the second lead insertion the
Two welding holes weld, and increase contact area and second lead with second scolding tin pin contact of first lead with the first scolding tin pin
Area, so as to strengthen the stability connected between lead and scolding tin pin, ensure the good luminous of LED chip.
3rd, the first arc body of the first scolding tin pin and the second arc of the first empty gap design and the second scolding tin pin are passed through
Body and the second hole gap are designed, and the thermolysis in gap can effectively extend the service life of LED chip.
【Brief description of the drawings】
Fig. 1 is the dimensional structure diagram of the utility model first embodiment LED patch supports.
Fig. 2 is the configuration schematic diagram of the utility model first embodiment LED patch supports.
Fig. 3 is the overlooking the structure diagram of the utility model first embodiment LED patch supports.
Fig. 4 is the vertical view that the first scolding tin pin of the utility model first embodiment LED patch supports coordinates with LED chip
Figure.
Fig. 5 is the vertical view that the second scolding tin pin of the utility model first embodiment LED patch supports coordinates with LED chip
Figure.
Fig. 6 is the cross section structure diagram of the utility model second embodiment LED encapsulation structure.
Fig. 7 is the vertical view of the second scolding tin pin of LED patch supports in the utility model second embodiment LED encapsulation structure
Figure.
【Embodiment】
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only solving
The utility model is released, is not used to limit the utility model.
Referring to Fig. 1, the utility model first embodiment LED patch supports 1 include pedestal 15, the first scolding tin pin 17 and the
Two scolding tin pin 19, the first scolding tin pin 17 and the second scolding tin pin 19 are respectively positioned at the lower left of pedestal 15 and lower right (in institute
Have in embodiment, the position such as upper and lower, left and right, inside and outside determiner is only limitted to the relative position in given view, rather than absolute position
Put), and a part for the first scolding tin pin 17 and the second scolding tin pin 19 is located in pedestal 15, another part is located at outside pedestal 15.
The pedestal 15 includes the first pedestal 151 and the second pedestal 153, first pedestal 151 is folded be located on the second pedestal 153 and this two
Person is integrally connected.The material of the pedestal 15 is plastic cement, and the first scolding tin pin 17 and the second scolding tin pin 19 are metal.
LED chip 13 and phosphor powder layer 11 are accommodated referring to Fig. 2, first pedestal 151 is hollow cavity, in it,
Phosphor powder layer 11 is arranged in LED chip 13.Filling jelly in second pedestal 153.
Also referring to Fig. 2 and Fig. 3, groove 152 is opened up in first pedestal 151, the groove 152 is by two parts group
Into the two parts are respectively the open slot 1522 on top and the flat board groove 1521 of bottom, and the flat board groove 1521 is used to accommodate LED
Chip 13, the flat board groove 1521 is interior to set a compartmented 15212, and the compartmented 15212 is plastic cement, and flat board groove 1521 is divided into by it
Vat 15211 and sulculus 15213, separated between the vat 152111 and sulculus 15213 by compartmented 15212 or so, it is described
Open slot 1522 is used to accommodate phosphor powder layer 11, and the opposite sides face of open slot 1522 is inclined plane, and it is respectively the first inclined-plane
15221 and second inclined-plane 15222, the shape and open slot 1522 of the phosphor powder layer 11 are approximately the same, and it covers LED chip 13
Cover in the flat board groove 1521 of the first pedestal 151.
The lower left and lower right of first pedestal 151 set the first hole 154 and second through pedestal 15 respectively
It is inside and outside that hole 156, first hole 154 and the second hole 156 connect the first pedestal 151, first hole 154 with
The vat 15211 communicates, and the second hole 156 communicates with the sulculus 15213.
Further referring to Fig. 4, the first scolding tin pin 17 include integrally formed first flat board 171, first connecting portion 173,
The first bending endpiece 177 of pin 175 and first.The size of first flat board 171 is equal with vat 15211, first connection
The both ends of portion 173 connect the first flat board 171 and the first bending pin 175 respectively, and the first endpiece is extended in the first bending pin 175 end
177, the first connecting portion 173 includes the first arc body 1731 and the first salient angle 1732 of integrally connected, and the rwo body phase
Even, first arc body 1731 is in approximate 90 ° of arc shapes, and it is curved that its arc both ends respectively connected the first flat board 171 and first
Pin 175 is rolled over, first salient angle 1732 protrudes from the outside of the interlude of the first arc body 1731.In the first connecting portion 173
In the first hole 154, and do not contacted between the edge of the first arc body 1731 and the inwall of the first hole 154, there is 1mm-
2mm gap, set gap to play thermolysis herein, can effectively extend the service life of LED chip, first salient angle
1732 are brought into close contact with the inwall of the first hole 156.The first bending pin 175 is L-shaped, and it is connected with first connecting portion 173
One end perpendicular to the first flat board 171, first endpiece 177 is perpendicular to the first bending place face of pin 175 and is attached at pedestal
15.In the present embodiment, the width of the first flat board 171 is more than the width at 173 coupled end of first connecting portion.
Further, the first scolding tin pin 17 is hardware, and the heat conductivility of metal is better than phosphor powder layer 11.In the first soldering
Radiating groove 179 is offered on first flat board 171 of pin 17, the shape size of radiating groove 179 is slightly larger than LED chip 13, LED chip
13 are positioned in radiating groove 179, and are in contact with the inwall of radiating groove 179.So LED chip 13 can be not only accurately positioned
On the first soldering pin 17, while increase the contact area of the soldering pin 17 of LED chip 13 and first so that LED chip 13 produces
Heat can timely diversion, strengthen LED chip 13 service life.Preferably, the thickness of LED chip 13 is more than radiating groove
179 depth so that the part of LED chip 13 exposes to radiating groove 179, so that while solving 13 heat dissipation problem of LED chip,
The luminescent properties of LED chip are not influenceed.
Further, the first welding hole 172 is offered on the first flat board 171 of the first soldering pin 17, the two of LED chip 13
The first lead 131 and the second lead 133 are drawn in end respectively, the first lead 131 through the first welding hole 172 and with the first soldering pin
17 realize electric connection by welding.Allow the electricity of the first lead 131 and the first soldering pin 17 through the first welding hole 172
Property connection it is more firm, and then ensure to the electrical stability of LED chip 13.Further referring to Fig. 5, the second scolding tin pin 19 includes the
Two flat boards 191, second connecting portion 193, second bend the endpiece 197 of pin 195 and second, the size of second flat board 191 with it is small
Groove 15213 is equal, and the both ends of second connecting portion 193 connect the second flat board 191 and the second bending pin 195 respectively, and this is second curved
The second endpiece 197 is extended in folding pin 195 end, and the second connecting portion 193 includes the second arc body 1931 and the of integrally connected
Two salient angles 1732, and the rwo is integrally connected, second arc body 1931 is in approximate 90 ° of arc shapes, and its arc both ends is distinguished
The second flat board 191 and the second bending pin 195 are connected to, second salient angle 1932 protrudes from the interlude of the first arc body 1931
Outside.The second connecting portion 193 is embedded in the second hole 156, and the edge of the second arc body 1931 and the second hole 156
Inwall does not contact, and has 1mm-2mm gap, sets gap to play thermolysis, second salient angle 1932 and second herein
The inwall of hole 156 is brought into close contact.The second bending pin 195 is L-shaped, and it is vertical with the one end being connected of second connecting portion 196
In the second flat board 191, second endpiece 197 is perpendicular to the second bending place face of pin 195 and is attached at pedestal 15.In this implementation
In example, the width of the second flat board 191 is more than the width at 193 coupled end of second connecting portion.
Offer the second welding hole 192 on the flat board 191 of the second soldering pin 19 second simultaneously, the second lead 133 is through the
Two welding holes 192 simultaneously realize electric connection with the second soldering pin 19 by welding.Cause the second lead through the second welding hole 192
133 can be more firm with the electric connection of the second soldering pin 19, and then ensures to the electrical stability of LED chip 13.
In the present embodiment, the first salient angle 1732 protrudes from the outside of the interlude of the first arc body 1731, the second salient angle
1932 protrude from the outside of the interlude of the second arc body 1931, are deformed as one kind, and first salient angle 1732 can protrude from the
The either side of one arc body 1731, second salient angle 1932 can protrude from the either side of the second arc body 1931, if this
One salient angle 1732 and the salient angle of the second salient angle 1932 are brought into close contact with the first hole 154 and the inwall of the second hole 156.This first
The salient angle 193 of salient angle 1732 and second plays fixation, and it makes first connecting portion 173 and second connecting portion 193 and pedestal respectively
15 connection more consolidates, is not easy to loosen.
First flat board 171 of the first scolding tin pin 17 is located in vat 15211, and first connecting portion 173 is located at the first hole
In hole 154, the first bending endpiece 177 of pin 175 and first is located at outside pedestal 15；Second flat board of the second scolding tin pin 19
191 in sulculus 15213, and second connecting portion 193 is located in the second hole 156, the second bending endpiece 197 of pin 195 and first
Outside pedestal 15, left and right ends of the endpiece 197 of the first endpiece 177 and second just with the second pedestal 153 are bonded.
The length L of the LED patch supports 1 is 1.8mm, width W is 0.8mm, height H is 0.4mm, and it is applied to specific
The mobile phone of thickness.Deform as one kind, set respectively on the first inclined-plane 15221 and the second inclined-plane 15222 of the open slot 1522
One layer of reflectance coating is put, the reflectance coating not only increases the reflecting effect of light source and plays condenser effect.
Compared with prior art, the utility model first embodiment LED patch support length L be 1.8mm, width W be
0.8mm, height H are 0.4mm, and it is applied to the mobile phone of specific thicknesses, by being offered respectively through pedestal at the both ends of pedestal
First hole and the second hole, the first connecting portion side of the first scolding tin pin sets the first salient angle of protrusion, in the second scolding tin pin
Second connecting portion side set protrusion the second salient angle, first salient angle and the second salient angle play fixation, pass through first
Salient angle and the second salient angle are brought into close contact with the first hole and the second hole inwall respectively, make first connecting portion and second connecting portion with
The connection of pedestal more consolidates, is not easy to loosen.
There is gap between the edge of first arc body and the first hole inwall, the edge of second arc body with
There is gap, the gap is 1mm-2mm gaps, plays thermolysis between second hole inwall.
By setting one layer of reflectance coating respectively on first inclined-plane and the second inclined-plane, make the reflective effect of LED chip
Fruit is more preferable.
Refer to Fig. 6 and Fig. 7, the structure of LED patch supports 2 in the utility model second embodiment LED encapsulation structure 20
Identical with first embodiment LED patch supports 1 with material, the LED patch supports 2 only difference that：Second scolding tin
A protector 292 is set on second flat board 291 of pin 29, a wire guide 2921 is set in the protector 292, the wire guide 2921
For through the through hole of the upper and lower surface of the second flat board 291.
LED chip 23 is mounted on the first flat board 271, and the first lead 231 and second is drawn at the both ends of LED chip 23 respectively
Lead 233, first lead 231 are welded in the first flat board 271, and second lead 233 is welded in the second flat board 291, is protecting
One Chip protector 24 is set in groove 292, and the Chip protector 24 can offset the element of electrostatic, its one end for resistance etc.
The second flat board 291 is electrically connected with, its other end draws the 3rd lead 241, now if the 3rd lead 241 walked from above
The first flat board 271 that its other end is connected to the first scolding tin pin 27 by line above (i.e. the light-emitting area direction of LED chip 23), can be made
Into extinction phenomenon, make the reduction of the light efficiency of LED chip 23, light loss serious, and in the present embodiment, the 3rd lead 241 is passed through into protection
Wire guide 2921 on groove 292 passes through, and its other end is connected to the first flat board 271 of the first scolding tin pin 27 from following cabling by it
(i.e. the direction opposite with the light-emitting area of LED chip 23) below, such LED encapsulation structure 20 is not only by the static guiding of inside
Go out, and ensure that 23 original illumination effect of LED chip, avoid extinction phenomenon.In the present embodiment, the chip protection
The height of device 24 is less than the depth of protector 292, avoids Chip protector 24 from blocking a part of light of LED chip 23.
Compared with prior art, LED patch supports provided by the utility model have advantages below：
1st, by be provided with the first soldering pin on the first salient angle and the second scolding tin pin set the second salient angle respectively with pedestal
On the first hole for opening up and the second hole be fitted close so that the second scolding tin pin and the second scolding tin pin can be fixedly attached to
On LED patch supports.
Further, holding tank is offered on the first scolding tin pin, LED chip is placed in the holding tank, with holding tank
Inwall contact, increase the contact area of LED chip and holding tank, it is effective to strengthen LED chip and the heat biography of the first scolding tin pin
Pass, effectively by the service life of the heat derives of LED chip, further extension LED chip.
2nd, by offering the first welding hole, the welding hole offered on the second scolding tin pin, LED core on the first scolding tin pin
The first lead and the second lead are drawn in the both ends of piece respectively, and the first lead inserts the first welding hole, the second lead insertion the
Two welding holes weld, and increase contact area and second lead with second scolding tin pin contact of first lead with the first scolding tin pin
Area, so as to strengthen the stability connected between lead and scolding tin pin, ensure the good luminous of LED chip.
3rd, the first arc body of the first scolding tin pin and the second arc of the first empty gap design and the second scolding tin pin are passed through
Body and the second hole gap are designed, and the thermolysis in gap can effectively extend the service life of LED chip.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modification made within the principle of utility model, equivalent substitution and improvement etc. all should include the scope of protection of the utility model
Within.
Claims (6)
- A kind of 1. LED patch supports, it is characterised in that：Including pedestal, LED chip, the first scolding tin pin and the second scolding tin pin, pedestal A groove is internally provided with, the first scolding tin pin includes the first flat board, first connecting portion, the first bending pin and the first endpiece, The first connecting portion both ends connect the first flat board and the first bending pin respectively, and the first tail is extended in the first bending pin end Section, the second scolding tin pin include the second flat board, second connecting portion, the second bending pin and the second endpiece, the second connecting portion Both ends connect the second flat board and the second bending pin respectively, and the second endpiece, first flat board are extended in the second bending pin end With the second flat board respectively in the groove, first connecting portion and second connecting portion are embedded in pedestal, the first bending pin and the One endpiece, the second bending pin and the second endpiece are located at outside pedestal；The both ends of the pedestal offer through the hole of pedestal first respectively Hole and the second hole, first connecting portion and second connecting portion are respectively in first hole and the second hole；Described first Holding tank is offered on flat board, the LED chip is placed in the holding tank, and is contacted with the inwall of holding tank.
- 2. LED patch supports as claimed in claim 1, it is characterised in that：The thickness of the LED chip is more than the depth of radiating groove Degree.
- 3. LED patch supports as claimed in claim 1, it is characterised in that：First is drawn respectively and is drawn in the both ends of the LED chip Line and the second lead, offer the first welding hole on first flat board, the second welding hole offered on second flat board, First lead inserts the first welding hole, and second lead inserts the welding of the second welding hole.
- 4. LED patch supports as claimed in claim 1, it is characterised in that：The side protrusion first of the first connecting portion is convex The second salient angle is protruded in angle, the side of the second connecting portion, first salient angle and the second salient angle respectively with the first hole and the Two hole inwalls are brought into close contact.
- 5. LED patch supports as claimed in claim 4, it is characterised in that：The first connecting portion further comprises the first arc Body, first salient angle are located at the side of the first arc body, and the second connecting portion further comprises the second arc body, described There is gap, the edge of second arc body and the second hole inwall between the edge of first arc body and the first hole inwall Between there is gap.
- 6. LED patch supports as claimed in claim 5, it is characterised in that：Second salient angle is located at the one of the second arc body Side, first arc body and the second arc body are in 90 ° of arc shapes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016205642894 | 2016-06-12 | ||
| CN201620564289 | 2016-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206834199U true CN206834199U (en) | 2018-01-02 |
Family
ID=60779342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720164503.1U Expired - Fee Related CN206834199U (en) | 2016-06-12 | 2017-02-22 | A kind of LED patch supports |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206834199U (en) |
-
2017
- 2017-02-22 CN CN201720164503.1U patent/CN206834199U/en not_active Expired - Fee Related
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180102 |
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| CF01 | Termination of patent right due to non-payment of annual fee |