CN210279956U

CN210279956U - PCBA board finished product cleaning device

Info

Publication number: CN210279956U
Application number: CN201920741018.5U
Authority: CN
Inventors: 马昌焱
Original assignee: Shenzhen Hengchangyuan Electronic Co Ltd
Current assignee: Shenzhen Hengchangyuan Electronic Co Ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-04-10
Anticipated expiration: 2029-05-22

Abstract

The utility model relates to the technical field of cleaning devices, in particular to a PCBA board finished product cleaning device; the operation of drying the PCBA board by using drying equipment can be reduced, the transfer and conveying of the PCBA board between cleaning equipment and the drying equipment are reduced, and the adhesion phenomenon of dust in the conveying process is reduced; the power distribution box comprises a box body, be provided with the working chamber in the box, the box front end is provided with first opening, the fixed case of placing that is provided with in shutter rear end, the working chamber top is provided with two sets of shower nozzles, two sets of shower nozzle inputs all communicate and are provided with two sets of transmission pipes, still include the stoving case, be provided with the multiunit heating rod in the stoving intracavity, stoving bottom of the case portion right side is provided with the air-blower, the air-blower input is provided with the rose box, be provided with the filter screen in the rose chamber, the rose box bottom is provided with out the dirt pipe, go out dirt pipe input and filter chamber bottom left side intercommunication, air.

Description

PCBA board finished product cleaning device

Technical Field

The utility model relates to a cleaning device's technical field especially relates to a PCBA board finished product cleaning device.

Background

As is well known, a PCBA board finished product cleaning device is a device used for cleaning a PCBA board in a processing process, can reduce pollutants on the surface of a board in a production process, and is widely used in the field of cleaning devices; the conventional PCBA plate finished product cleaning device comprises a box body, wherein a working chamber is arranged in the box body, a through hole is formed in the front end of the box body and is communicated with the front end of the working chamber, a stop door is arranged on a front end cover of the through hole, the rear end of the stop door is in sealing contact with the through hole, a placing box is fixedly arranged at the rear end of the stop door, the placing front end is connected with the rear end of the stop door, and a placing chamber is formed in the placing box; when the PCBA finished product cleaning device is used, the PCBA is placed in the placing cavity, and cleaning liquid transmitted in the spray head at the top end of the working cavity cleans the PCBA; this kind of PCBA board finished product cleaning device discovers in using, needs the manual work to dry it after the PCBA board washs, needs to shift the PCBA board, and impurity such as easy adhesion dust in the transfer process, the use convenience of equipment is relatively poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a reduce the operation of using drying equipment to dry to it reduces PCBA board transfer and the transport between cleaning equipment and drying equipment simultaneously, reduces the PCBA board finished product cleaning device of the adhesion phenomenon of dust in transportation process.

The utility model discloses a PCBA board finished product cleaning device, including the box, be provided with the working chamber in the box, the box front end is provided with first opening, first opening and working chamber front end intercommunication, first opening front end housing is provided with the shutter, shutter rear end and first opening sealing contact, the fixed case that places that is provided with in shutter rear end, it is connected with shutter rear end to place the case front end, it is provided with the chamber of placing in the incasement to place, it is provided with the multiunit connecting hole to place case lateral wall intercommunication, the working chamber top is provided with two sets of shower nozzles, two sets of shower nozzle input ends all communicate and are provided with two sets of transmission pipes; the drying box is arranged on the left side of the box body, a drying cavity is arranged in the drying box, a plurality of groups of heating rods are arranged in the drying cavity, the left end and the right end of the drying cavity are respectively provided with a first connecting plate, the left end of the left first connecting plate and the right end of the right first connecting plate are respectively connected with the left end and the right end of the drying cavity, the plurality of groups of heating rods are arranged between the two groups of first connecting plates, the left end and the right end of the plurality of groups of heating rods are respectively connected with the right end of the left first connecting plate and the left end of the right first connecting plate, the right side of the bottom end of the drying box is provided with a blower, the output end of the blower is communicated with the right side of the bottom end of the drying cavity, the input end of the blower is provided with a filter box, a filter screen is arranged in, the filter tank bottom is provided with out the dirt pipe, go out dirt pipe input and filter chamber bottom left side intercommunication, the air-blower input communicates with the filter chamber right-hand member, stoving case top left side is provided with first connecting pipe, first connecting pipe input and stoving chamber top left side intercommunication, first connecting pipe output is provided with the hose, hose input and first connecting pipe output intercommunication, the hose output is provided with the second connecting pipe, second connecting pipe input and hose output intercommunication, second connecting pipe output and working chamber left end upside intercommunication, it all communicates and is provided with first valve to go out dirt pipe and second connecting pipe.

The utility model discloses a PCBA board finished product cleaning device, still include threaded rod and baffle, the baffle sets up in placing the intracavity, it is provided with the second opening to place the roof end, the second opening with place chamber top intercommunication, second opening top lid is provided with keeps off the lid, the baffle lateral wall with place the contact of intracavity lateral wall, it is provided with the screw hole to place the roof end, the threaded rod sets up in the baffle bottom, threaded rod top and baffle bottom rotatable coupling, the threaded rod bottom passes the screw hole, the threaded rod bottom mounting is provided with the first in command, the baffle top with keep off the equal fixed rubber pad that is provided with in lid bottom, upside rubber pad top and downside rubber pad bottom are connected with keeping off lid bottom and baffle top respectively, two sets of rubber pads all communicate and are provided with the second connecting hole, multiunit second connecting.

The utility model discloses a PCBA board finished product cleaning device, still include two sets of motors and two sets of connecting axles, two sets of motors set up respectively in box left end and right-hand member, two sets of connecting axles set up respectively in working chamber left end downside and right-hand member downside, left side connecting axle left end and right side connecting axle right-hand member are connected with two sets of motor output ends respectively after passing box left end downside and right-hand member downside respectively, two sets of connecting axle tops and bottom are the fixed stirring fan blade that is provided with respectively, box right-hand member upside is provided with the inlet tube, inlet tube output and working chamber right-hand member upside intercommunication, the box bottom is provided with the outlet pipe, outlet pipe input and working chamber bottom intercommunication, inlet tube.

The utility model discloses a PCBA board finished product cleaning device places chamber left end and right-hand member and all is provided with first slide, all is provided with first slider in two sets of first slides, and the first slider left end in left side right-hand member and the first slider left end in right side are connected with baffle left end and right-hand member respectively.

The utility model discloses a PCBA board finished product cleaning device, box front end left side and front end right side all are provided with the second slide, all are provided with the second slider in two sets of second slides, and two sets of second slider front ends all are provided with the slide, and two sets of slide rear ends are connected with two sets of second slider front ends respectively, and two sets of slide front ends are connected with shutter rear end left side and rear end right side respectively.

The utility model discloses a PCBA board finished product cleaning device, the fixed second handle that is provided with in shutter front end.

The utility model discloses a PCBA board finished product cleaning device, box bottom left front side, left rear side, right front side and right rear side are all fixed and are provided with first landing leg, and stoving case left end and right-hand member are all fixed and are provided with the second landing leg.

The utility model discloses a PCBA board finished product cleaning device still includes the outlet duct, and the outlet duct sets up in box top right side, outlet duct input and working chamber top right side intercommunication.

Compared with the prior art, the beneficial effects of the utility model are that: the air is transmitted to the filter chamber from the intake pipe input under the effect of air-blower, the filter screen in the filter chamber filters the dust in the air, the dust separation in the air is at the filter screen left end, the dust deposits to the filter chamber bottom and exports from the play dirt pipe under the effect of gravity, simultaneously pure air transmission to the stoving intracavity, the heating pipe in the stoving intracavity heats it, smart air after the heating is through first connecting pipe, hose and second connecting pipe transmit to the work intracavity, dry the panel in the work intracavity, reduce the operation that uses drying equipment to dry it, reduce the transfer and the transport of PCBA board between cleaning equipment and drying equipment simultaneously, reduce the adhesion of dust in transportation process, reduce the air transmission to the work intracavity that has the dust simultaneously, reduce the pollution phenomenon of dust to panel.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a right side elevational view of a portion of the housing;

FIG. 3 is a top view of the connection structure between the door and the box;

FIG. 4 is an enlarged view of portion A of FIG. 1;

FIG. 5 is an enlarged view of portion B of FIG. 1;

in the drawings, the reference numbers: 1. a box body; 2. a working chamber; 3. a shutter; 4. placing a box; 5. a placement chamber; 6. a drying box; 7. a drying cavity; 8. a heating rod; 9. a first connecting plate; 10. a blower; 11. a filter box; 12. a filter screen; 13. a dust outlet pipe; 14. a first connecting pipe; 15. A hose; 16. a second connecting pipe; 17. a threaded rod; 18. a baffle plate; 19. a blocking cover; 20. a first handle; 21. a rubber pad; 22. a motor; 23. a connecting shaft; 24. a water inlet pipe; 25. a first slider; 26. a second slider; 27. a slide plate; 28. a second handle; 29. a first leg; 30. A second leg; 31. and an air outlet pipe.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 5, the PCBA board finished product cleaning device of the present invention comprises a box body 1, a working chamber 2 is arranged in the box body 1, a first through hole is arranged at the front end of the box body 1, the first through hole is communicated with the front end of the working chamber 2, a shutter 3 is arranged on the front end cover of the first through hole, the rear end of the shutter 3 is in sealing contact with the first through hole, a placing box 4 is fixedly arranged at the rear end of the shutter 3, the front end of the placing box 4 is connected with the rear end of the shutter 3, a placing chamber 5 is arranged in the placing box 4, the side wall of the placing box 4 is communicated with a plurality of groups of connecting holes, two groups of nozzles are arranged at the top end of the working chamber; the drying box comprises a box body 1, and is characterized by further comprising a drying box 6, wherein the drying box 6 is arranged on the left side of the box body 1, a drying cavity 7 is arranged in the drying box 6, a plurality of groups of heating rods 8 are arranged in the drying cavity 7, the left end and the right end of the drying cavity 7 are respectively provided with a first connecting plate 9, the left end and the right end of the left first connecting plate 9 and the right end of the right first connecting plate 9 are respectively connected with the left end and the right end of the drying cavity 7, the plurality of groups of heating rods 8 are respectively arranged between the two groups of first connecting plates 9, the left end and the right end of the plurality of groups of heating rods 8 are respectively connected with the right end of the left first connecting plate 9 and the left end of the right first connecting plate 9, the right side of the bottom end of the drying box 6 is provided with a blower 10, the output end of, an air inlet pipe is arranged at the left end of the filter box 11, the output end of the air inlet pipe is communicated with the left end of the filter cavity, a dust outlet pipe 13 is arranged at the bottom end of the filter box 11, the input end of the dust outlet pipe 13 is communicated with the left side of the bottom end of the filter cavity, the input end of the air blower 10 is communicated with the right end of the filter cavity, a first connecting pipe 14 is arranged at the left side of the top end of the drying box 6, the input end of the first connecting pipe 14 is communicated with the left side of the top end of the drying cavity 7, a hose 15 is arranged at the output end of the first connecting pipe 14, the input end of the hose 15 is communicated with the output end of the first connecting pipe 14, a second connecting pipe 16 is arranged at the output end of the hose 15, the output end; the air is transmitted to the filter chamber from the intake pipe input under the effect of air-blower, the filter screen in the filter chamber filters the dust in the air, the dust separation in the air is at the filter screen left end, the dust deposits to the filter chamber bottom and exports from the play dirt pipe under the effect of gravity, simultaneously pure air transmission to the stoving intracavity, the heating pipe in the stoving intracavity heats it, smart air after the heating is through first connecting pipe, hose and second connecting pipe transmit to the work intracavity, dry the panel in the work intracavity, reduce the operation that uses drying equipment to dry it, reduce the transfer and the transport of PCBA board between cleaning equipment and drying equipment simultaneously, reduce the adhesion of dust in transportation process, reduce the air transmission to the work intracavity that has the dust simultaneously, reduce the pollution phenomenon of dust to panel.

The utility model discloses a PCBA board finished product cleaning device, still include threaded rod 17 and baffle 18, baffle 18 sets up in placing the chamber 5, place 4 tops of case and be provided with the second opening, the second opening communicates with placing 5 tops of chamber, second opening top lid is provided with

fender lid

19, 18 lateral walls of baffle contact with placing 5 inside walls of chamber, place 4 bottoms of case and be provided with the screw hole, threaded rod 17 sets up in 18 bottoms of baffle, 17 tops of threaded rod and 18 bottoms of baffle rotatable coupling, threaded rod 17 bottom passes the screw hole, 17 bottoms of threaded rod are fixed and are provided with first in

command

20, 18 tops of baffle and 19 bottoms of fender lid all fix and are provided with

rubber pad

21, 21 tops of upside rubber pad and 21 bottoms of downside rubber pad are connected with fender lid 19 bottoms and 18 tops of baffle respectively, two sets of rubber pads 21 all communicate and are provided with the second connecting hole, multiunit second connecting hole communicates with multiunit; place the PCBA board on the baffle top, according to how much of PCBA quantity, highly adjusting the baffle, rotate the threaded rod, the threaded rod moves up under the effect of screw hole when pivoted, baffle rebound thereupon, the space that baffle rebound in-process PCBA board can be placed reduces, reducible PCBA board is placing the phenomenon that the intracavity rocked from this, reduces the damage phenomenon of PCBA board in the cleaning process.

The utility model discloses a PCBA board finished product cleaning device, still include two sets of motors 22 and two sets of connecting axles 23, two sets of motors 22 set up respectively in 1 left end of box and right-hand member, two sets of connecting axles 23 set up respectively in 2 left ends of working chamber downside and right-hand member downside, left side connecting axle 23 left end and right side connecting axle 23 right-hand member pass respectively box 1 left end downside and right-hand member downside after be connected with two sets of motors 22 output respectively, two sets of connecting axles 23 top and bottom are fixed respectively and are provided with stirring fan blade, box 1 right-hand member upside is provided with inlet tube 24, inlet tube 24 output communicates with 2 right-hand member upsides of working chamber, box 1 bottom is provided with the outlet pipe, the outlet pipe input communicates with 2 bottoms of working chamber; after wasing the end to PCBA board, carry water to the work intracavity from the inlet tube, two sets of motors drive two sets of connecting axles respectively and rotate, and stirring fan blade rotates thereupon under the rotation effect of two sets of connecting axles, can stir the water of work intracavity, washs the work intracavity, has reduced the adhesion of pollutant and has remained, and the water after finishing washing is from outlet pipe output, has improved the use convenience of equipment.

The utility model discloses a PCBA board finished product cleaning device, place 5 left end and right-hand member of chamber and all be provided with first slide, all be provided with first slider 25 in two sets of first slides, left side first slider 25 right-hand member and right side first slider 25 left end are connected with 18 left ends of baffle and right-hand member respectively; in the moving process of the baffle in the up-down direction, the two groups of first sliding blocks respectively slide in the up-down direction from the two groups of first sliding ways, and the stability of the baffle in the up-down direction moving process is improved due to the arrangement of the two groups of first sliding blocks and the two groups of first sliding ways.

The utility model discloses a PCBA board finished product cleaning device, box 1 front end left side and front end right side all are provided with the second slide, all are provided with second slider 26 in two sets of second slides, and two sets of second slider 26 front ends all are provided with slide 27, and two sets of slide 27 rear ends are connected with two sets of second slider 26 front ends respectively, and two sets of slide 27 front ends are connected with shutter 3 rear end left side and rear end right side respectively; when the shutter is pulled in the front-back direction, the two groups of second sliding blocks can respectively move in the front-back direction in the two groups of second sliding ways, so that the shutter can move in the front-back direction.

The utility model discloses a PCBA board finished product cleaning device, a second handle 28 is fixedly arranged at the front end of a stop door 3; when opening or closing the shutter, can rely on the second handle to operate it, improve the use convenience of equipment.

The utility model discloses a PCBA board finished product cleaning device, the left front side, the left back side, the right front side and the right back side of the bottom end of the box body 1 are all fixedly provided with first support legs 29, and the left end and the right end of the drying box 6 are all fixedly provided with second support legs 30; four sets of first supporting legs and second supporting legs support the box body and the drying box respectively, and stability of the box body and the drying box is improved.

The utility model discloses a PCBA board finished product cleaning device still includes outlet duct 31, and outlet duct 31 sets up in 1 top right sides of box, and the inlet of outlet duct 31 communicates with 2 top right sides of working chamber; when the PCBA board is dried, more steam is generated, and the steam can be output from the air outlet pipe.

The utility model discloses a PCBA board finished product cleaning device, when using, after opening the shutter, place the PCBA board in placing the intracavity, according to the size of PCBA, adjust the height of baffle, rotate the threaded rod, the threaded rod moves up under the effect of screw hole when rotating, the baffle moves up along with it, the space that the PCBA board can be placed in the baffle moving up process reduces, therefore the phenomenon that the PCBA board rocks in placing the intracavity can be reduced, reduce the PCBA board damage phenomenon in the cleaning process, after placing, communicate the washing liquid with the transmission pipe, the shower nozzle sprays the washing liquid, spray wash the PCBA board, after spray washing, air is transmitted from the intake pipe input to the filter chamber under the effect of the air-blower, the filter screen in the filter chamber filters the dust in the air, the dust in the air is blocked at the filter screen left end, dust is deposited to the bottom end of the filter cavity under the action of gravity and is output from the dust outlet pipe, meanwhile, pure air is transmitted into the drying cavity, a heating pipe in the drying cavity heats the dust, heated fine air is transmitted into the working cavity through the first connecting pipe, the hose and the second connecting pipe, plates in the working cavity are dried, the operation of drying the plates by using drying equipment is reduced, the transfer and the transmission of a PCBA plate between cleaning equipment and the drying equipment are reduced, the adhesion of the dust in the conveying process is reduced, meanwhile, the air with the dust is transmitted into the working cavity, the PCBA plate is taken out after a baffle door is opened after the drying, at the moment, the motor respectively drives the two groups of connecting shafts to rotate, the stirring fan blades rotate along with the connecting shafts under the rotating action of the two groups of connecting shafts, the water in the working cavity can be stirred, the working cavity is cleaned, and the adhesion and the residue of pollutants are reduced, the water after the cleaning is output from the water outlet pipe, so that the use convenience of the equipment is improved.

The PCBA board finished product cleaning device of the utility model has the advantages that the installation mode, the connection mode or the arrangement mode are common mechanical modes, and the PCBA board finished product cleaning device can be implemented as long as the beneficial effects can be achieved; and the motor, the blower and the heating rod are provided with the control module and the electric wire, and can be used after being plugged, without changing the internal structure.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A PCBA board finished product cleaning device comprises a box body (1), wherein a working chamber (2) is arranged in the box body (1), a first through hole is formed in the front end of the box body (1), the first through hole is communicated with the front end of the working chamber (2), a baffle door (3) is arranged on the front end cover of the first through hole, the rear end of the baffle door (3) is in sealing contact with the first through hole, a placing box (4) is fixedly arranged at the rear end of the baffle door (3), the front end of the placing box (4) is connected with the rear end of the baffle door (3), a placing chamber (5) is arranged in the placing box (4), a plurality of groups of connecting holes are formed in the side wall of the placing box (4) in a communicating mode, two groups of spray heads are arranged at the top; the drying box is characterized by further comprising a drying box (6), the drying box (6) is arranged on the left side of the box body (1), a drying cavity (7) is arranged in the drying box (6), a plurality of groups of heating rods (8) are arranged in the drying cavity (7), first connecting plates (9) are arranged at the left end and the right end of the drying cavity (7), the left end and the right end of the first connecting plate (9) on the left side are respectively connected with the left end and the right end of the drying cavity (7), the plurality of groups of heating rods (8) are respectively arranged between the two groups of first connecting plates (9), the left end and the right end of the plurality of groups of heating rods (8) are respectively connected with the right end of the first connecting plate (9) on the left side and the left end of the first connecting plate (9) on the right side, an air blower (10) is arranged on the right side of the bottom end of the drying box (6), the output end of, a filter cavity is arranged in the filter box (11), a filter screen (12) is arranged in the filter cavity, the top end and the bottom end of the filter screen (12) are respectively connected with the top end and the bottom end of the filter cavity, the left end of the filter box (11) is provided with an air inlet pipe, the output end of the air inlet pipe is communicated with the left end of the filter cavity, the bottom end of the filter box (11) is provided with a dust outlet pipe (13), the input end of the dust outlet pipe (13) is communicated with the left side of the bottom end of the filter cavity, the input end of the air blower (10) is communicated with the right end of the filter cavity, the left side of the top end of the drying box (6) is provided with a first connecting pipe (14), the input end of the first connecting pipe (14) is communicated with the left side of the top end of the drying cavity (7), the output end of the first connecting pipe (14) is provided with a hose, the output end of the second connecting pipe (16) is communicated with the upper side of the left end of the working cavity (2), and the dust outlet pipe (13) and the second connecting pipe (16) are both communicated with each other to be provided with a first valve.

2. The PCBA board finished product cleaning device as recited in claim 1, further comprising a threaded rod (17) and a baffle plate (18), wherein the baffle plate (18) is arranged in the placing cavity (5), the top end of the placing box (4) is provided with a second through hole, the second through hole is communicated with the top end of the placing cavity (5), the top end cover of the second through hole is provided with a baffle cover (19), the outer side wall of the baffle plate (18) is contacted with the inner side wall of the placing cavity (5), the bottom end of the placing box (4) is provided with a threaded hole, the threaded rod (17) is arranged at the bottom end of the baffle plate (18), the top end of the threaded rod (17) is rotatably connected with the bottom end of the baffle plate (18), the bottom end of the threaded rod (17) passes through the threaded hole, the bottom end of the threaded rod (17) is fixedly provided with a first handle (20), the top end of the baffle plate (18) and the bottom end of the baffle cover (19) are both fixedly provided, the two groups of rubber pads (21) are communicated with second connecting holes, and the multiple groups of second connecting holes are respectively communicated with the multiple groups of first connecting holes.

3. A PCBA board finished product cleaning device as claimed in claim 2, further comprising two sets of motors (22) and two sets of connecting shafts (23), the two sets of motors (22) are respectively disposed at the left end and the right end of the box body (1), the two sets of connecting shafts (23) are respectively disposed at the lower side of the left end and the lower side of the right end of the working chamber (2), the left end and the right end of the left connecting shaft (23) respectively pass through the lower side of the left end and the lower side of the right end of the box body (1) and then are respectively connected with the output ends of the two sets of motors (22), the top end and the bottom end of the two sets of connecting shafts (23) are respectively and fixedly provided with stirring fan blades, the upper side of the right end of the box body (1) is provided with a water inlet pipe (24), the output end of the water inlet pipe (24) is communicated with the upper side of the right end of the working chamber.

4. A PCBA plate finished product cleaning device as claimed in claim 3, wherein the left end and the right end of the placing cavity (5) are provided with first slide ways, first slide blocks (25) are arranged in the two groups of first slide ways, and the right end of the left first slide block (25) and the left end of the right first slide block (25) are respectively connected with the left end and the right end of the baffle plate (18).

5. A PCBA plate finished product cleaning device as claimed in claim 4, wherein the left side and the right side of the front end of the box body (1) are provided with second slide ways, two groups of second slide ways are provided with second slide blocks (26), the front ends of two groups of second slide blocks (26) are provided with sliding plates (27), the rear ends of two groups of sliding plates (27) are respectively connected with the front ends of two groups of second slide blocks (26), and the front ends of two groups of sliding plates (27) are respectively connected with the left side and the right side of the rear end of the stop gate (3).

6. A PCBA board product cleaning device as claimed in claim 5, characterised in that a second handle (28) is fixedly arranged at the front end of the shutter (3).

7. A PCBA plate finished product cleaning device as claimed in claim 6, wherein the left front side, the left rear side, the right front side and the right rear side of the bottom end of the box body (1) are all fixedly provided with first support legs (29), and the left end and the right end of the drying box (6) are all fixedly provided with second support legs (30).

8. A cleaning device for PCBA plates as in claim 7, further comprising an air outlet pipe (31), wherein the air outlet pipe (31) is arranged at the right side of the top end of the box body (1), and the input end of the air outlet pipe (31) is communicated with the right side of the top end of the working chamber (2).