CN106685345A - Photovoltaic heat collection plate of semicircle pipe flow channel - Google Patents
Photovoltaic heat collection plate of semicircle pipe flow channel Download PDFInfo
- Publication number
- CN106685345A CN106685345A CN201611234402.3A CN201611234402A CN106685345A CN 106685345 A CN106685345 A CN 106685345A CN 201611234402 A CN201611234402 A CN 201611234402A CN 106685345 A CN106685345 A CN 106685345A
- Authority
- CN
- China
- Prior art keywords
- roll
- collecting plate
- photovoltaic
- heat collection
- pipe
- 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.)
- Pending
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052802 copper Inorganic materials 0.000 claims abstract description 24
- 239000010949 copper Substances 0.000 claims abstract description 24
- 239000003507 refrigerant Substances 0.000 claims abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 claims description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 14
- 239000002313 adhesive film Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 230000004888 barrier function Effects 0.000 claims description 6
- 229910000679 solder Inorganic materials 0.000 claims description 5
- 230000003467 diminishing effect Effects 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000009738 saturating Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 3
- 239000003292 glue Substances 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/40—Thermal components
- H02S40/42—Cooling means
- H02S40/425—Cooling means using a gaseous or a liquid coolant, e.g. air flow ventilation, water circulation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The invention provides a photovoltaic heat collection plate of a semicircle pipe flow channel. The photovoltaic heat collection plate of the semicircle pipe flow channel is formed by a solar photovoltaic heat collection plate with a multilayer structure and the semicircle pipe flow channel which is welded and adhered to a back plate of the heat collection plate. The solar photovoltaic heat collection plate is formed by a protection layer, a solar cell panel, an insulating layer, the back plate and a glue film layer. The semicircle pipe flow channel is formed though collecting up and down and welding a semicircle branching pipe and a circle red copper pipe which are arranged in parallel and in a snakelike mode. A refrigerant inlet is located below the photovoltaic heat collection plate and an outlet is located above the photovoltaic heat collection plate. A flow channel pipeline is formed through processing a soft red copper circular pipe. The soft red copper circular pipe becomes a red copper semicircle pipe through a rolling pressing rail whose gap is continuously contracted into a semicircular shape. In the invention, a contact area of the solar cell panel and a refrigerant flow channel is increased, solar surface temperature distribution uniformity is guaranteed, a surface average temperature of the solar cell panel is reduced and photovoltaic generating efficiency is increased.
Description
Technical field
The present invention relates to a kind of photovoltaic collecting plate, more particularly to a kind of photovoltaic cell thermal-arrest with refrigerant flow path
Plate.
Background technology
Photovoltaic collecting plate is that photovoltaic heat collector absorbs solar radiant energy generating and transmits the crucial portion of heat to heat-transfer working medium
Part.The electrical efficiency of photovoltaic battery panel is reduced with the rising of battery plate temperature, is taken away and can not be converted in solar radiation electric energy
Heat energy can improve photoelectric efficiency, can also obtain considerable heat energy.Solar radiation is absorbed by photovoltaic battery panel, part wavelength
Solar radiation generates electricity through opto-electronic conversion, and remainder is converted into heat energy and is absorbed by collecting plate, metal of the heat after backboard
Pipe is conducted to intraductal working medium.Conventional solar thermal collector flow channel for liquids has parallel pipe type and coiled, both will circle
Copper pipe is constituted with plate welding, and the unpromising photovoltaic collecting plate combined with photovoltaic battery panel is specially designed, metal tube with it is flat
Weld seam between plate is wire, and width is less than round copper pipe diameter.Metal tube is little with the contact surface after plate welding, collecting plate
Fin effect is serious, thermal-arrest plate temperature is higher and affect photovoltaic cell capable of generating power efficiency.Traditional collecting plate is in distribution refrigerant fluid
Main longitudinal arrangement, arm is transversely arranged, and cold-producing medium easily distributes under gravity uneven, and collecting plate local lacks liquid, collection
Hot area can not be utilized effectively.Simple parallel pipe arrangement runner length of tube is too short, and collecting plate respective design length becomes
It is long, it is unfavorable for flexible design.To sum up, there is plate face temperature height in existing collecting plate flow passage structure, and collecting efficiency is low, easily divides liquid
Uneven the problems such as.
The content of the invention
Goal of the invention：The invention aims to propose a kind of photovoltaic collecting plate of improved semi-circular tube runner, it is solved
Photoelectric efficiency low problem when photovoltaic cell plate temperature is too high, can not only effectively increase refrigerant flow path and solar panel
Contact area, and it is uniform to distribute coolant, convenient processing.
Technical scheme：
A kind of photovoltaic collecting plate of semi-circular tube runner, including photovoltaic collecting plate and the cold-producing medium below the photovoltaic collecting plate
Runner；The refrigerant flow path is semicircle cast runner；The semicircle cast runner includes lower collector pipe, some arms and upper collection
Pipe；The upper lower collector pipe is parallel transversely disposed, and the lower collector pipe is provided with a flow channel entry point and several spaced outlets；Institute
State upper header and be provided with a runner exit and some entrances corresponding with the outlet of the lower collector pipe；The arm is serpentine-like, if
Do the arm longitudinal arrangement be arranged between the upper lower collector pipe, and respectively with the entrance of the upper header and going out for lower collector pipe
Mouth connection.
The lower collector pipe and the upper header are made by round copper pipe, and the arm adopts semi-circular tube.
The arm gradually tends to semicircular roll compacting passage compacting and forms using circular copper tube through section.
The roll compacting passage is by the diminishing stationary roll of some groups of central recess combinational gaps to constituting；Every roll
Centerline is provided with groove, the groove peak line of roll of the topping roll group from porch to exit and the angle of horizontal plane
For 1~5 degree；The roll horizontal positioned of bottom roll group, in same level, there is semicircle recessed at every roll centre
Groove, groove shapes are identical.
The roll includes the body of roll, roll neck and joint, and roll is successively joint, roll neck and the body of roll from end to center；Institute
Groove is stated positioned at the center of the body of roll.
The number of the arm is by designing collector area and power system capacity is determined.
The photovoltaic collecting plate is had and is up to followed successively by sealer, the EVA glue being bonded together using lamination down
Film, photovoltaic cell layer, EVA adhesive film, TPT insulating barriers and aluminum backsheet layer；The refrigerant flow path is fixed on the aluminum by solder
Backsheet layer lower section.
The sealer is using the material with high-transmission rate.
The TPT insulating barriers adopt black material.
Beneficial effect：Invention increases the contact area of solar panel and refrigerant flow path, it is ensured that solar watch
Face uniformity of temperature profile, reduces solar panel average surface temperature, improves photovoltaic efficiency.The present invention is applied to photovoltaic
Collecting plate.
Description of the drawings
Fig. 1 is the profile of the photovoltaic collecting plate of the present invention.
Fig. 2 is the back runner schematic diagram of the photovoltaic collecting plate of the present invention.
Fig. 3 is the side-looking central recess position profile figure of the semi-circular tube forming processing device of the present invention.
Fig. 4 is the semi-circular tube forming processing device entrance roll of the present invention to profile.
Wherein, 1 is sealer, and 2 is EVA adhesive film, and 3 is photovoltaic cell layer, and 4 is EVA adhesive film, and 5 is TPT insulating barriers, 6
For aluminum backsheet layer, 7 is solder, and 8 is semi-circle tubular runner, and 9 is lower collector pipe, and 10 is arm, and 11 is upper header, and 12 is the body of roll, 13
For roll neck, 14 is joint, and 15 is porch topping roll, and 16 is porch bottom roll, and 17 is exit topping roll, and 18 is exit
Bottom roll.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As shown in figure 1, the photovoltaic collecting plate of the present invention is made up of the refrigerant flow path of photovoltaic collecting plate and lower section.Photovoltaic collection
Hot plate is from top to bottom hierarchy, is successively that sealer 1, EVA adhesive film 2, photovoltaic cell layer 3, EVA adhesive film 4, TPT are exhausted
Edge layer 5, aluminum backsheet layer 6 are constituted.Sealer 1 is adopted using the materials with high-transmission rate such as ultra-clear glasses, TPT insulating barriers 5
With black material more preferably absorbing solar radiant energy.Sealer 1, EVA adhesive film 2, photovoltaic cell layer 3, EVA adhesive film 4, TPT
Insulating barrier 5, aluminum backsheet layer 6 are adhesively-bonded together to form photovoltaic battery panel using lamination, and refrigeration is provided with below aluminum backsheet layer 6
Agent runner, refrigerant flow path is semi-circle tubular runner 8；One side semicircular pipe maintains one semicircle, can reduce cold-producing medium
Flow resistance, on the other hand ensure that semicircular pipe and collecting plate have contact area as big as possible.Meanwhile, will using solder 7
Semi-circle tubular runner 8 is fixed on aluminum backsheet layer 6, and increases the contact area between refrigerant flow path and aluminum backsheet layer 6, thus structure
Into photovoltaic collecting plate.Refrigerant flow path is welded by the semicircle copper pipe formed with round copper pipe Jing roll compacting, and one jiao of collecting plate is
Tunnel inlets, another angle of centrosymmetric collecting plate is runner exit.Half round copper pipe in addition to plane is contacted with aluminum backsheet layer 6,
Semi-circular tube two flanks also using solder 7 and aluminum backsheet layer 6 plus strong ties, one side more strength, on the other hand increase with
Contact area between aluminum backsheet layer 6.
As shown in Fig. 2 the refrigerant flow path of the photovoltaic collecting plate of the present invention is by 11 groups of lower collector pipe 9, arm 10 and upper header
Into.Upper lower collector pipe lateral arrangement below aluminum backsheet layer 6, the longitudinal arrangement of some arms 10 arrangement.Lower collector pipe 9 is provided with a runner and enters
Mouth and several spaced outlets, each outlet piece arm 10 of connection, so as to the cold-producing medium flowed into from flow channel entry point
Shunted, branched to every arm 10, every arm 10 is serpentine-like, elbow is connected in semicircle shape, each tube pitch is identical；On
Collector 11 is provided with a runner exit and several spaced entrances, and the entrance of upper header 11 is with the entrance of lower collector pipe 9 one by one
Correspondence；The entrance of each upper header 11 connects an arm 10, so as to the cold-producing medium of each arm 10 be collaborated, by runner
Outlet is flowed out.Can ensure that cold-producing medium is evenly distributed in runner using the refrigerant flow path of the present invention, existed using snakelike arm
Single tube length can be increased on certain length, and excessively do not increase on-way resistance, increase the Main or half of contact area
The design of pipe.
Lower collector pipe 9 and upper header 11 are made by round copper pipe, and arm 10 adopts semi-circular tube, adopts between arm 10 and upper lower collector pipe
It is welded to connect.Cold-producing medium is flowed into from the flow channel entry point of lower collector pipe 9, heat exchange and phase transformation occurs through arm 10, finally in Shang Ji
Pipe 11 converges and flows out from outlet flow.The number of arm 10 is by designing collector area and power system capacity is determined.
The tunnel inlets of whole refrigerant flow path and outlet are in collecting plate or so not homonymy, the i.e. flow channel entry point of lower collector pipe 9
Collecting plate or so not homonymy is arranged on the runner exit of upper header 11, it is ensured that refrigerant branch lines are reversed return type to reduce each
Road resistance difference so that cold-producing medium is evenly distributed.
Semicircle copper pipe is formed using the compacting of circular copper tube.Because soft copper tube has good ductility, make circle soft
Copper tube gradually tends to semicircular roll compacting passage through section, you can be processed as the semicircle copper tube of present invention needs.Such as
Shown in Fig. 3, semi-circular tube forming processing device is by the diminishing stationary roll of some groups of central recess combinational gaps to constituting.On
The plane that the roll mandrel of roll stacks is formed centrally also is provided with recessed with the horizontal a less inclination angle, at every roller central line
Groove, the groove peak line of roll of the topping roll group from porch to exit is designed as 1~5 degree with the angle of horizontal plane.
The roll horizontal positioned of bottom roll group, in same level, there is semi-circular recesses, groove shapes at every roll centre
It is identical, it is the arc-shaped edges groove of the semi-circular tube of final molding.The groove of topping roll group mainly produces squeezing action, and groove is equal
For concave plane, for the flat side that extruding produces semi-circular tube.Roll with lower section into semicircle shape, top roll the porch of stationary roll pair
Groove between roller can allow round copper pipe to pass through, and the groove of subsequent top roll is gradually reduced, during last root roll, roll
Groove disappears, and with the gap of lower nip rollers a semicircle is formed.As illustrated, the groove of the composition of porch roll stacks 15,16
Gap can accommodate round copper pipe entrance, during to exit roll stacks 17,18, the un-grooved of exit topping roll 17, and soft red copper circle
Copper pipe extrusion molding is semi-circular tube.Operationally, topping roll group rotate counterclockwise, bottom roll group turns clockwise.
As shown in figure 4, single roll is made up of the body of roll 12, roll neck 13, joint 14, shaping groove is located at the center of the body of roll 12
Position, roll is successively joint 14, roll neck 13 and the body of roll 12 from end to center, is to ensure that roll structure intensity answers same material
Machine-shaping.Groove in the middle of porch topping roll 15 and the body of roll of porch bottom roll 16 is harmonious, and promotes copper pipe to be formed after
Corresponding shape.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (9)
1. the cold-producing medium stream below a kind of photovoltaic collecting plate of semi-circular tube runner, including photovoltaic collecting plate and the photovoltaic collecting plate
Road；It is characterized in that：The refrigerant flow path is semicircle cast runner (8)；The semicircle cast runner (8) is including lower collector pipe
(9), some arms (10) and upper header (11)；The upper lower collector pipe is parallel transversely disposed, and the lower collector pipe (9) is provided with a runner
Entrance and several spaced outlets；The upper header (11) is provided with a runner exit and some with the lower collector pipe (9)
The corresponding entrance of outlet；The arm (10) is serpentine-like, and some arm (10) longitudinal arrangements are arranged in described upper and lower
Between collector, and it is connected with the entrance of the upper header and the outlet of lower collector pipe respectively.
2. photovoltaic collecting plate according to claim 1, it is characterised in that：The lower collector pipe (9) and the upper header (11)
Made by round copper pipe, the arm (10) adopts semi-circular tube.
3. photovoltaic collecting plate according to claim 1, it is characterised in that：The arm (10) is passed through using circular copper tube
Section gradually tends to semicircular roll compacting passage compacting and forms.
4. photovoltaic collecting plate according to claim 3, it is characterised in that：The roll compacting passage is by some groups of central recess groups
The diminishing stationary roll in gap is closed to composition；It is provided with groove at every roller central line, topping roll group is from porch to going out
The groove peak line of roll at mouthful and the angle of horizontal plane are 1~5 degree；The roll horizontal positioned of bottom roll group, is in
In same level, there are semi-circular recesses at every roll centre, groove shapes are identical.
5. photovoltaic collecting plate according to claim 4, it is characterised in that：The roll includes the body of roll (12), roll neck (13)
And joint (14), roll is successively joint (14), roll neck (13) and the body of roll (12) from end to center；The groove is located at described
The center of the body of roll (12).
6. photovoltaic collecting plate according to claim 1, it is characterised in that：The number of the arm (10) is by designing heat collector surface
Product and power system capacity are determined.
7. photovoltaic collecting plate according to claim 6, it is characterised in that：The photovoltaic collecting plate has up to be followed successively by down to be adopted
The sealer (1) that is bonded together with lamination, EVA adhesive film (2), photovoltaic cell layer (3), EVA adhesive film (4), TPT are exhausted
Edge layer (5) and aluminum backsheet layer (6)；The refrigerant flow path is fixed on aluminum backsheet layer (6) lower section by solder (7).
8. photovoltaic collecting plate according to claim 6, it is characterised in that：The sealer (1) is high saturating using having
Penetrate the material of rate.
9. photovoltaic collecting plate according to claim 6, it is characterised in that：The TPT insulating barriers (5) adopt black material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611234402.3A CN106685345A (en) | 2016-12-28 | 2016-12-28 | Photovoltaic heat collection plate of semicircle pipe flow channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611234402.3A CN106685345A (en) | 2016-12-28 | 2016-12-28 | Photovoltaic heat collection plate of semicircle pipe flow channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106685345A true CN106685345A (en) | 2017-05-17 |
Family
ID=58872185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611234402.3A Pending CN106685345A (en) | 2016-12-28 | 2016-12-28 | Photovoltaic heat collection plate of semicircle pipe flow channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106685345A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729378A (en) * | 2018-07-17 | 2020-01-24 | 嵊州晴远环保科技有限公司 | Manufacturing method of electric heat cogeneration photovoltaic panel |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2803604Y (en) * | 2005-07-22 | 2006-08-09 | 上海贤达压力容器制造有限公司 | Tube rolling mill |
| CN201589452U (en) * | 2009-12-25 | 2010-09-22 | 卢立学 | Flat-plate solar heat-collecting plate body with liquid flow channels adopting special pipes |
| CN102721200A (en) * | 2012-05-28 | 2012-10-10 | 沈阳建筑大学 | Flat-plate solar collector plate core with whole-face convection function |
| KR20120118318A (en) * | 2011-04-18 | 2012-10-26 | 박정식 | Solar collectors for solar cooling of high temperature zone |
| CN104467660A (en) * | 2014-12-10 | 2015-03-25 | 辽宁远东换热设备制造有限公司 | Special heat exchanger for solar cell panel |
| CN204303844U (en) * | 2014-11-20 | 2015-04-29 | 中国建材检验认证集团股份有限公司 | The cooling system of photovoltaic hollow glass |
| CN205828407U (en) * | 2016-07-21 | 2016-12-21 | 浙江舒奇蒙光伏科技有限公司 | Double glazing formula solar photovoltaic assembly |
-
2016
- 2016-12-28 CN CN201611234402.3A patent/CN106685345A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2803604Y (en) * | 2005-07-22 | 2006-08-09 | 上海贤达压力容器制造有限公司 | Tube rolling mill |
| CN201589452U (en) * | 2009-12-25 | 2010-09-22 | 卢立学 | Flat-plate solar heat-collecting plate body with liquid flow channels adopting special pipes |
| KR20120118318A (en) * | 2011-04-18 | 2012-10-26 | 박정식 | Solar collectors for solar cooling of high temperature zone |
| CN102721200A (en) * | 2012-05-28 | 2012-10-10 | 沈阳建筑大学 | Flat-plate solar collector plate core with whole-face convection function |
| CN204303844U (en) * | 2014-11-20 | 2015-04-29 | 中国建材检验认证集团股份有限公司 | The cooling system of photovoltaic hollow glass |
| CN104467660A (en) * | 2014-12-10 | 2015-03-25 | 辽宁远东换热设备制造有限公司 | Special heat exchanger for solar cell panel |
| CN205828407U (en) * | 2016-07-21 | 2016-12-21 | 浙江舒奇蒙光伏科技有限公司 | Double glazing formula solar photovoltaic assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729378A (en) * | 2018-07-17 | 2020-01-24 | 嵊州晴远环保科技有限公司 | Manufacturing method of electric heat cogeneration photovoltaic panel |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |