CN112542922A - Water mist circulating cooler for motor - Google Patents
Water mist circulating cooler for motor Download PDFInfo
- Publication number
- CN112542922A CN112542922A CN202011524199.XA CN202011524199A CN112542922A CN 112542922 A CN112542922 A CN 112542922A CN 202011524199 A CN202011524199 A CN 202011524199A CN 112542922 A CN112542922 A CN 112542922A
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- Prior art keywords
- fixedly connected
- cover
- cooling
- circulating
- circulating cooling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/20—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil wherein the cooling medium vaporises within the machine casing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Special Spraying Apparatus (AREA)
Abstract
The invention discloses a water mist circulating cooler for a motor, which comprises a circulating cooling cover, a buckling sealing cover and a cooling unit, wherein the circulating cooling cover is fixedly arranged on the motor; a buckling sealing cover is fixedly connected to the left opening of the circulating cooling cover at intervals in a sealing manner; a cooling unit is arranged between the circulating cooling cover and the buckling sealing cover; the cooling unit comprises a communicating air inlet pipe; the circulating cooling cover and the buckling sealing cover are communicated and fixedly connected with a communicated air inlet pipe; a first heat radiation fan is fixedly connected with the outer side surface of the buckling sealing cover; the inner side surface of the buckling sealing cover is fixedly connected with a third radiating fin; a middle partition plate is fixedly connected in the circulating cooling cover in a horizontal sealing manner; an atomization unit and a liquefaction unit are arranged in the circulating cooling cover; the functions of water mist circulation, heat transfer and small volume are realized, the problems of poor heat dissipation and cooling effects and large volume of a cooler of the traditional motor are solved, the cooling efficiency of the motor is improved, and the volume of the cooler is reduced; the problem of inconvenient installation matching is solved, the suitability and the installation convenience of cooler are improved.
Description
Technical Field
The invention relates to the field of motors, in particular to a water mist circulating cooler for a motor.
Background
An electric machine (commonly called as a "motor") refers to an electromagnetic device which converts or transmits electric energy according to the law of electromagnetic induction; the motor is represented by a letter M (old standard is represented by D) in a circuit, the motor is mainly used for generating driving torque and serving as a power source of electrical appliances or various machines, the generator is represented by a letter G in the circuit, and the generator is mainly used for converting mechanical energy into electric energy; coolers are a class of heat exchange devices used to cool fluids; water or air is typically used as a coolant to remove heat.
The traditional liquid water cooling device has low cooling efficiency and large volume of heat exchange liquid, and is not suitable for a motor; therefore, the water mist circulation cooler for the motor is provided aiming at the problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the traditional liquid water cooling device has low cooling efficiency and large volume of heat exchange liquid, and is not applicable to a motor, the invention provides the water mist circulation cooler for the motor.
A water mist circulation cooler for a motor comprises a circulation cooling cover, a buckling sealing cover and a cooling unit; a buckling sealing cover is fixedly connected to the left opening of the circulating cooling cover at intervals in a sealing manner; a cooling unit is arranged between the circulating cooling cover and the buckling sealing cover;
the cooling unit comprises a communicating air inlet pipe; the circulating cooling cover and the buckling sealing cover are communicated and fixedly connected with a communicated air inlet pipe; a first heat radiation fan is fixedly connected with the outer side surface of the buckling sealing cover; the inner side surface of the buckling sealing cover is fixedly connected with a third radiating fin; a middle partition plate is fixedly connected in the circulating cooling cover in a horizontal sealing manner; and an atomization unit and a liquefaction unit are arranged in the circulating cooling cover.
Preferably, the atomizing unit includes a cooling water container; an atomization partition plate is fixedly connected to the cooling water container in a horizontally sealed manner; an ultrasonic atomization sheet is fixedly connected to the opening of the atomization partition plate; a second circulating fan is fixedly connected with an opening of a side plate of the cooling water container; a first collecting hole is formed in the cooling water container; during operation, the purified water in the cooling water container is changed into atomized water through the ultrasonic atomization sheet, and air negative pressure is generated under the rotation of the second circulating fan to move so as to participate in water mist circulation and heat circulation.
Preferably, the liquefaction unit comprises an arcuate seal plate; the left side surface of the arched sealing plate is fixedly connected with a first radiating fin; the right side surface of the arched sealing plate is fixedly connected with a second radiating fin; a circulating communicating pipe is fixedly connected between the arch-shaped sealing plates; a guide collecting pipe is fixedly connected in the circulating communication pipe; the lower end of the guide collecting pipe is correspondingly provided with a second collecting hole; the second collecting hole is formed in the middle partition plate; when the heat exchanger works, the plurality of first radiating fins and the plurality of second radiating fins are fixedly connected with the left side and the right side of the arched sealing plate, so that heat on one side of the first radiating fins can be timely transferred to one side of the second radiating fins, heat exchange is realized, atomized water becomes liquid water in the exchange process, the atomized water enters the second collecting hole along the guide collecting pipe fixedly connected in the circulating communicating pipe and then enters the first collecting hole to complete water circulation.
Preferably, a guide channel is formed in the side plate of the cooling water container corresponding to the second circulating fan; the inner wall of the circulating cooling cover is fixedly connected with an installation limiting ring in a surrounding manner; during operation, the guide channel enables the second circulating fan and the lead of the ultrasonic atomization sheet to be conveniently fixed and protected.
Preferably, a reinforcing support plate is fixedly connected to the side surface of the circulating cooling cover; the lower surface of the reinforcing support plate is horizontally and fixedly connected with a fixed bottom plate; the reinforcing support plate is provided with a conveying hole; the fixed bottom plate is provided with a mounting hole; during operation, make the fixed stability of circulative cooling cover through strengthening backup pad and PMKD, make circulative cooling cover more stable when conveniently removing under the cooperation of transportation hole and mounting hole simultaneously.
Preferably, a protective rear cover is detachably and fixedly connected to the right opening of the circulating cooling cover; the protective rear cover is uniformly provided with air inlets; a third cooling fan is fixedly connected in the protective rear cover; during operation, can carry out effectual protection to other parts of circulative cooling cover inside through the lid behind the protection, keep atmospheric pressure balanced with the outside air simultaneously under the effect of inlet port and third radiator fan, effectively keep the circulation of air and the exchange of heat.
The invention has the advantages that:
1. according to the invention, through the structural design of the circulating cooling cover, the buckling sealing cover, the communicating air inlet pipe, the first cooling fan, the third cooling fin, the cooling water container, the atomizing partition plate, the ultrasonic atomizing sheet, the second circulating fan, the first collecting hole, the second collecting hole, the guiding collecting pipe, the circulating communicating pipe, the arch-shaped sealing plate, the first cooling fin, the second cooling fin and the third cooling fan, the functions of water mist circulation, heat transfer and small volume are realized, the problems of poor heat dissipation and cooling effect and large volume of a cooler of the traditional motor are solved, the cooling efficiency of the motor is improved, and the volume of the cooler is reduced;
2. according to the invention, through the structural design of the circulating cooling cover, the buckling sealing cover, the fixing bottom plate, the mounting hole, the reinforcing support plate and the transportation hole, the function of convenient installation and alignment is realized, the problem of inconvenient installation and matching is solved, and the adaptability and the installation convenience of the cooler are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional front view of an embodiment of the present invention;
FIG. 3 is a schematic side view of a cross-sectional structure of an embodiment of the present invention;
FIG. 4 is a schematic side view of an embodiment of the present invention.
In the figure: 1. a circulating cooling jacket; 2. buckling the sealing cover; 3. the air inlet pipe is communicated; 4. protecting the rear cover; 5. an air inlet; 6. a first heat dissipation fan; 7. a third heat sink; 8. installing a limiting ring; 9. a cooling water container; 10. an atomization baffle plate; 11. an ultrasonic atomization sheet; 12. a guide channel; 13. a second circulation fan; 14. a first collection well; 15. a middle partition plate; 16. a second collection well; 17. a guide header; 18. a circulating communicating pipe; 19. an arcuate sealing plate; 20. a first heat sink; 21. a second heat sink; 22. a third heat dissipation fan; 23. mounting holes; 24. fixing the bottom plate; 25. reinforcing the support plate; 26. and (7) a conveying hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a water mist circulation cooler for a motor comprises a circulation cooling cover 1, a fastening sealing cover 2 and a cooling unit; the left opening of the circulating cooling cover 1 is fixedly connected with a buckling sealing cover 2 at intervals in a sealing way; a cooling unit is arranged between the circulating cooling cover 1 and the buckling sealing cover 2;
the cooling unit comprises a communicating air inlet pipe 3; the circulating cooling cover 1 and the buckling sealing cover 2 are fixedly communicated with a communicating air inlet pipe 3; a first heat radiation fan 6 is fixedly connected with the outer side surface of the buckling sealing cover 2; the inner side surface of the buckling sealing cover 2 is fixedly connected with a third radiating fin 7; a middle partition plate 15 is horizontally and hermetically fixedly connected in the circulating cooling cover 1; an atomization unit and a liquefaction unit are arranged in the circulating cooling cover 1.
As an embodiment of the present invention, the atomizing unit includes a cooling water container 9; an atomization partition plate 10 is fixedly connected to the cooling water container 9 in a horizontally sealed manner; an ultrasonic atomization sheet 11 is fixedly connected to the opening of the atomization partition plate 10; a second circulating fan 13 is fixedly connected to an opening of a side plate of the cooling water container 9; a first collecting hole 14 is formed in the cooling water container 9; when the water mist cooling device works, purified water in the cooling water container 9 is changed into atomized water through the ultrasonic atomization sheet 11, and air negative pressure is generated under the rotation of the second circulating fan 13 to move so as to participate in water mist circulation and heat circulation;
as an embodiment of the invention, the liquefaction unit comprises an arcuate seal plate 19; a first radiating fin 20 is fixedly connected to the left side surface of the arched sealing plate 19; the right side surface of the arched sealing plate 19 is fixedly connected with a second radiating fin 21; a circulating communicating pipe 18 is fixedly communicated between the arch-shaped sealing plates 19; a guide collecting pipe 17 is fixedly connected in the circulating communicating pipe 18; the lower end of the guide collecting pipe 17 is correspondingly provided with a second collecting hole 16; the second collecting hole 16 is formed in the middle partition plate 15; when the heat exchanger works, the heat on one side of the first radiating fin 20 can be timely transferred to one side of the second radiating fin 21 through the plurality of first radiating fins 20 and the plurality of second radiating fins 21 fixedly connected to the left side and the right side of the arched sealing plate 19, so that heat exchange is realized, atomized water is changed into liquid water in the exchange process, enters the second collecting hole 16 along the guide collecting pipe 17 fixedly connected in the circulating communicating pipe 18, and then enters the first collecting hole 14 to finish water circulation;
as an embodiment of the present invention, a guide passage 12 is opened on a side plate of the cooling water container 9 corresponding to the second circulation fan 13; a mounting limiting ring 8 is fixedly wound on the inner wall of the circulating cooling cover 1; when the ultrasonic atomization device works, the second circulating fan 13 and the conducting wires of the ultrasonic atomization sheet 11 are conveniently fixed and protected through the guide channel;
as an embodiment of the present invention, a reinforcing support plate 25 is fixed to a side surface of the circulation cooling jacket 1; a fixed bottom plate 24 is horizontally and fixedly connected to the lower surface of the reinforcing support plate 25; the reinforcing support plate 25 is provided with a conveying hole 26; the fixed bottom plate 24 is provided with a mounting hole 23; during operation, the circulating cooling cover 1 is stably fixed through the reinforcing support plate 25 and the fixing bottom plate 24, and meanwhile, the circulating cooling cover 1 is more stable while being convenient to move under the matching of the conveying hole 26 and the mounting hole 23;
as an embodiment of the invention, a protective rear cover 4 is detachably and fixedly connected to the right opening of the circulating cooling cover 1; the protective rear cover 4 is uniformly provided with air inlet holes 5; a third heat radiation fan 22 is fixedly connected in the protective rear cover 4; during operation, other components inside the cooling circulation cover 1 can be effectively protected by the protective rear cover 4, and meanwhile, air pressure balance is kept between the cooling circulation cover and the outside air under the action of the air inlet holes 5 and the third cooling fan 22, so that air circulation and heat exchange are effectively kept.
According to the working principle, two reinforcing support plates 25 are fixedly connected to the side faces of the circulating cooling cover 1, a fixed bottom plate 24 is horizontally and fixedly connected to the lower surfaces of the reinforcing support plates 25, mounting holes 23 are formed in the upper surface of the fixed bottom plate 24, two conveying holes 26 are formed in the reinforcing support plates 25, the circulating cooling cover 1 is made of stainless steel, the reinforcing support plates 25 and the fixed bottom plate 24 are both subjected to general steel surface rust prevention treatment, and through the design, the cooler can be stably mounted and conveniently moved; the buckling sealing cover 2 is fixedly connected to the opening at the left side of the circulating cooling cover 1 at a sealed interval, a plurality of communicating air inlet pipes 3 are fixedly connected between the buckling sealing cover 2 and the circulating cooling cover 1 in a communicating mode, and the first cooling fan 6 is fixedly connected to the outer wall of the buckling sealing cover 2; through the design that a plurality of third radiating fins 7 are fixedly connected on the inner wall of the buckling sealing cover 2, an installation limiting ring 8 is fixedly connected on the inner wall of the circulating cooling cover 1 in a surrounding manner, a middle partition plate 15 is fixedly connected on the inner wall of the circulating cooling cover 1 in a horizontal manner, a cooling water container 9 is fixedly connected between the right side of the installation limiting ring 8 and the inner wall of the circulating cooling cover 1 in a buckling manner, a protective rear cover 4 is fixedly connected on an opening on the left side of the circulating cooling cover 1 in a detachable manner, air inlet holes 5 are uniformly distributed on the protective rear cover 4, the cooling water container 9 can realize stable buckling connection, an atomizing partition plate 10 is fixedly connected on the inner wall of the circulating cooling cover 1 in a horizontal sealing manner at intervals, a plurality of ultrasonic atomizing sheets 11 are fixedly connected on the atomizing partition plate 10 through holes, a second circulating fan 13 is fixedly connected on the side wall of the circulating cooling cover 1 through, a guide channel 12 is arranged on the side wall of the circulating cooling cover 1 corresponding to a second circulating fan 13, the lower end opening of the guide channel 12 is positioned between the atomizing partition plate 10 and the cooling water container 9, a first collecting hole 14 is arranged at the upper end of the cooling water container 9, a second collecting hole 16 is arranged on the middle partition plate 15 corresponding to the first collecting hole 14, an arch-shaped sealing plate 19 is buckled and connected on the middle partition plate 15, a plurality of first radiating fins 20 are fixedly connected on the left side surface of the arch-shaped sealing plate 19, a plurality of second radiating fins 21 are fixedly connected on the right side surface of the arch-shaped sealing plate 19, a plurality of circulating communicating pipes 18 are fixedly connected among the multilayer structures of the arch-shaped sealing plate 19, a guide collecting pipe 17 is fixedly connected inside the circulating communicating pipes 18, the lower end opening of the guide collecting pipe 17 corresponds to the first collecting hole 14 and the second collecting hole 16, a third radiating fan 22 is fixedly connected on the protection rear cover 4 corresponding to the arch, the arched sealing plate 19 is made of aluminum alloy, through the design, the pure water placed in the cooling water container 9 can be changed into an atomized state through the ultrasonic atomization sheet 11, the generated atomized water is diffused to the vicinity of the buckling sealing cover 2 and the third radiating fin 7 under the rotation action of the second circulating fan 13, so that the heat of the hot air moved by the movement of the first radiating fan 6 is absorbed, the temperature of the air entering the motor is lower, the cooling temperature of the motor is improved, the atomized water rises after absorbing the heat and moves in the arched sealing plate 19 after the air generates the air negative pressure under the rotation action of the second circulating fan 13, the air flow is generated by the rotation of the third radiating fan 22, the heat generated by the first radiating fin 20 and the second radiating fin 21 is transferred to the air to exchange heat with the atmosphere, and the effect of temperature reduction is realized, meanwhile, liquid water is formed after the high-temperature atomized water is cooled, is collected inwards along the inclined arched sealing plate 19, reaches the guide collecting pipe 17 through the circulating communicating pipe 18, and enters the cooling water container 9 through the second collecting hole 16 and the middle partition plate 15, so that the water mist circulating work and the heat circulating work inside the circulating cooling cover 1 are realized, and the temperature of air entering the motor is reduced.
Since the structures of the arcuate seal plate 19 and the second circulation fan 13 belong to the prior art, they are not described in the present document.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (6)
1. The utility model provides a water smoke circulative cooling ware for motor which characterized in that: comprises a circulating cooling cover (1), a buckling sealing cover (2) and a cooling unit; a buckling sealing cover (2) is fixedly connected to the left opening of the circulating cooling cover (1) at intervals in a sealing manner; a cooling unit is arranged between the circulating cooling cover (1) and the buckling sealing cover (2);
the cooling unit comprises a communicating air inlet pipe (3); the circulating cooling cover (1) and the buckling sealing cover (2) are communicated and fixedly connected with a communicated air inlet pipe (3); a first heat radiation fan (6) is fixedly connected with the outer side surface of the buckling sealing cover (2); the inner side surface of the buckling sealing cover (2) is fixedly connected with a third radiating fin (7); a middle partition plate (15) is fixedly connected in the circulating cooling cover (1) in a horizontal sealing manner; an atomization unit and a liquefaction unit are arranged in the circulating cooling cover (1).
2. The water mist circulation cooler for the motor according to claim 1, characterized in that: the atomizing unit comprises a cooling water container (9); an atomization partition plate (10) is fixedly connected to the cooling water container (9) in a horizontally sealed manner; an ultrasonic atomization sheet (11) is fixedly connected with the opening of the atomization partition plate (10); a second circulating fan (13) is fixedly connected with an opening of a side plate of the cooling water container (9); the cooling water container (9) is provided with a first collecting hole (14).
3. The water mist circulation cooler for the motor according to claim 2, characterized in that: the liquefaction unit comprises an arcuate seal plate (19); a first radiating fin (20) is fixedly connected to the left side surface of the arched sealing plate (19); a second radiating fin (21) is fixedly connected to the right side surface of the arched sealing plate (19); a circulating communicating pipe (18) is fixedly communicated between the arch-shaped sealing plates (19); a guide collecting pipe (17) is fixedly connected in the circulating communicating pipe (18); the lower end of the guide collecting pipe (17) is correspondingly provided with a second collecting hole (16); the second collecting hole (16) is arranged on the middle partition plate (15).
4. A water mist circulative cooler for a motor according to claim 3, characterized in that: a guide channel (12) is arranged on a side plate of the cooling water container (9) corresponding to the second circulating fan (13); and a mounting limit ring (8) is fixedly connected on the inner wall of the circulating cooling cover (1) in a surrounding manner.
5. The water mist circulation cooler for the motor according to claim 4, characterized in that: a reinforced support plate (25) is fixedly connected to the side surface of the circulating cooling cover (1); a fixed bottom plate (24) is horizontally and fixedly connected to the lower surface of the reinforcing support plate (25); the reinforcing support plate (25) is provided with a conveying hole (26); the fixed bottom plate (24) is provided with a mounting hole (23).
6. The water mist circulation cooler for the motor according to claim 5, characterized in that: a protective rear cover (4) is detachably and fixedly connected to the right opening of the circulating cooling cover (1); the protective rear cover (4) is uniformly provided with air inlet holes (5); and a third radiating fan (22) is fixedly connected in the protective rear cover (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011524199.XA CN112542922A (en) | 2020-12-22 | 2020-12-22 | Water mist circulating cooler for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011524199.XA CN112542922A (en) | 2020-12-22 | 2020-12-22 | Water mist circulating cooler for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112542922A true CN112542922A (en) | 2021-03-23 |
Family
ID=75019439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011524199.XA Pending CN112542922A (en) | 2020-12-22 | 2020-12-22 | Water mist circulating cooler for motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112542922A (en) |
-
2020
- 2020-12-22 CN CN202011524199.XA patent/CN112542922A/en active Pending
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