CN203630988U - Projector for classroom teaching - Google Patents
Projector for classroom teaching Download PDFInfo
- Publication number
- CN203630988U CN203630988U CN201320863464.6U CN201320863464U CN203630988U CN 203630988 U CN203630988 U CN 203630988U CN 201320863464 U CN201320863464 U CN 201320863464U CN 203630988 U CN203630988 U CN 203630988U
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- Prior art keywords
- seal cover
- cylindrical seal
- water
- cooling water
- pipe
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Abstract
The utility model discloses a projector for classroom teaching. The projector comprises a housing; a projection light source, a projection light path and a projection lens are arranged in the housing and are encapsulated in the same cylindrical seal cover; a surface of the cylindrical seal cover is provided with a plurality of cooling water pipes, which are axially parallel to the cylindrical seal cover, in a sliding manner; one end, which is located at one side of the projection lens, of cooling water pipes is connected with water inlet ring; one end, which is located at one side of the projection light source, of the cooling water pipe is connected with a water outlet ring; the water inlet ring is connected to a water storage tank through a soft pipe, the water outlet ring is connected to a capillary coil pipe, and a water pump is arranged between the water storage tank and the capillary coil pipe; the curvature of a bottom face of each cooling water pipe is equal to the curvature of the cylindrical seal cover; two sides of the bottom face of each cooling water pipe are respectively provided with a heat-radiation fin; and the water outlet ring is connected with a rotary motor, and an outer side of the rotary motor is provided with a fan. The projector for the classroom teaching can improve defects in the prior art and can be used in a classroom for a long time; and the maintenance frequency is low.
Description
Technical field
The utility model relates to a kind of educational aid, especially a kind of classroom instruction projector.
Background technology
Along with scientific and technological development, multimedia teaching has become a kind of teaching means being widely used.In multimedia teaching, projector a kind of equipment that is absolutely necessary.Projector is to be generally fixedly suspended on the ceiling in classroom, forward projection.Existing projector is unspecial, and in order to use specialized designs in classroom, maintenance period is shorter, and each maintenance all needs projector to pull down, extremely inconvenient.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of classroom instruction projector, can solve the deficiencies in the prior art, can in classroom, use for a long time, and frequency of maintenance is low.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows.
A kind of classroom instruction projector, comprise housing, in housing, be provided with projection light source, projecting light path and projection lens, described projection light source, projecting light path and projection lens are encapsulated in same cylindrical seal cover successively, wherein projection lens is fixed on the end face of cylindrical seal cover, the inner side of the one side of projection lens in cylindrical seal cover, the outside of the another side of projection lens in cylindrical seal cover, the surface sliding of cylindrical seal cover is provided with the cooling water pipe of several and cylindrical seal cover axially parallel, cooling water pipe is connected with into water ring in one end of the first side of projection lens, cooling water pipe is connected with out water ring in one end of projection light source one side, water inlet ring is connected to water tank by flexible pipe, go out water ring and be connected to capillary coil pipe by flexible pipe, between water tank and capillary coil pipe, be provided with water pump, the bottom surface that cooling water pipe contacts with cylindrical seal cover is arc, the curvature of cooling water pipe bottom surface is identical with the curvature of cylindrical seal cover, the both sides of each cooling water pipe bottom surface are respectively arranged with radiating fin, go out water ring and be connected with electric rotating machine, electric rotating machine arranged outside has fan.
As preferably, described shell inner surface is provided with Sound-proof material.
As preferably, in described radiating fin, be provided with multiple air flow channels.
As preferably, in described water tank, be provided with level sensor, water tank is outside equipped with low liquid level warning lamp and water supplement port, and water supplement port is provided with sealing-plug.
As preferably, the arranged outside of described projection lens has motor-driven lens lid, and the inner side of motor-driven lens lid is provided with negative pressure suction nozzle.
The beneficial effect that adopts technique scheme to bring is: the utility model is hermetically sealed by projection light source, projecting light path and projection lens are carried out, and has avoided dust to fall into, and can keep the long-term cleaning of optics.Meanwhile, the utility model is changed in prior art by the structure that directly air blast is dispelled the heat on optical device, utilizes cooling water pipe to contact heat radiation with radiating fin on cylindrical seal cover surface.In having improved radiating efficiency, remove from and adopted the air blast filter mechanism that need to use that dispels the heat, without periodic cleaning filter mechanism, reduce frequency of maintenance.Because projection light source is main thermal source, in order not affect the normal work of other parts, projection light source is arranged on to the end of cooling water pipe.The curvature of cooling water pipe bottom surface is identical with the curvature of cylindrical seal cover, can farthest increase contact area.Fan can improve the air velocity on radiating fin surface, improves radiating efficiency.Multiple air flow channels in radiating fin can improve the contact area of radiating fin and air.Sound-proof material can reduce the noise of projector, and a relatively quietly teaching environment is provided.In the time that level sensor detects that water tank middle water level is low, low liquid level warning lamp lights, prompting moisturizing.Sealing-plug is opened, in water tank, added distilled water.The effect of capillary coil pipe is that chilled water is lowered the temperature, and chilled water adopts distilled water can avoid capillary dish in-tube fouling to stop up.During shutting down, motor-driven lens lid covers projection lens, protection projection lens, and negative pressure suction nozzle is cleared up projection lens surface in the time that motor-driven lens lid is opened, and keeps the cleanliness factor on projection lens surface.Because the resistance of flow of cooling water in capillary coil pipe is larger, water pump is arranged between water tank and capillary coil pipe, can improve the trafficability characteristic of capillary coil pipe.The feature that the utility model uses for classroom, has frequency of maintenance low, can effectively avoid the impact on optics such as chalk dust in classroom.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of an embodiment of the utility model.
Fig. 2 is the cut-open view that in Fig. 1, cylindrical seal covers on A-A direction.
In figure: 1, projection light source; 2, projecting light path; 3, projection lens; 4, cylindrical seal cover; 5, cooling water pipe; 6, water inlet ring; 7, go out water ring; 8, flexible pipe; 9, water tank; 10, capillary coil pipe; 11, water pump; 12, radiating fin; 13, electric rotating machine; 14, fan; 15, housing; 16, Sound-proof material; 17, air flow channel; 18, level sensor; 19, low liquid level warning lamp; 20, water supplement port; 21, sealing-plug; 22, motor-driven lens lid; 23, negative pressure suction nozzle.
Embodiment
With reference to Fig. 1-2, embodiment of the utility model comprises housing 15, in housing 15, be provided with projection light source 1, projecting light path 2 and projection lens 3, described projection light source 1, projecting light path 2 and projection lens 3 are encapsulated in same cylindrical seal cover 4 successively, wherein projection lens 3 is fixed on the end face of cylindrical seal cover 4, the inner side of the one side of projection lens 3 in cylindrical seal cover 4, the outside of the another side of projection lens 3 in cylindrical seal cover 4, the surface sliding of cylindrical seal cover 4 is provided with the cooling water pipe 5 of several and cylindrical seal cover axially parallel, cooling water pipe 5 is connected with into water ring 6 in one end of projection lens 3 one sides, cooling water pipe 5 is connected with out water ring 7 in one end of projection light source 1 one sides, water inlet ring 6 is connected to water tank 9 by flexible pipe 8, go out water ring 7 and be connected to capillary coil pipe 10 by flexible pipe 8, between water tank 9 and capillary coil pipe 10, be provided with water pump 11, the bottom surface that cooling water pipe 5 contacts with cylindrical seal cover 4 is arc, the curvature of cooling water pipe 5 bottom surfaces is identical with the curvature of cylindrical seal cover 4, the both sides of each cooling water pipe 5 bottom surfaces are respectively arranged with radiating fin 12, go out water ring 7 and be connected with electric rotating machine 13, electric rotating machine 13 arranged outside have fan 14.
It should be noted that described housing 15 inside surfaces are provided with Sound-proof material 16.
It should be noted that and in described radiating fin 12, be provided with multiple air flow channels 17.
It should be noted that in described water tank 9 and be provided with level sensor 18, water tank 9 is outside equipped with low liquid level warning lamp 19 and water supplement port 20, and water supplement port 20 is provided with sealing-plug 21.
In addition, the arranged outside of described projection lens 3 has motor-driven lens lid 22, and the inner side of motor-driven lens lid 22 is provided with negative pressure suction nozzle 23.
Principle of work of the present utility model is: the utility model is hermetically sealed by projection light source 1, projecting light path 2 and projection lens 3 are carried out, and has avoided dust to fall into, and can keep the long-term cleaning of optics.Meanwhile, the utility model is changed in prior art by the structure that directly air blast is dispelled the heat on optical device, utilizes cooling water pipe 5 to contact heat radiation with radiating fin 12 on cylindrical seal cover 4 surfaces.In having improved radiating efficiency, remove from and adopted the air blast filter mechanism that need to use that dispels the heat, without periodic cleaning filter mechanism, reduce frequency of maintenance.Because projection light source 1 is main thermal source, in order not affect the normal work of other parts, projection light source 1 is arranged on to the end of cooling water pipe 5.The curvature of cooling water pipe 5 bottom surfaces is identical with the curvature of cylindrical seal cover 4, can farthest increase contact area.Fan 14 can improve the air velocity on radiating fin 12 surfaces, improves radiating efficiency.Multiple air flow channels 17 in radiating fin 12 can improve the contact area of radiating fin 12 and air.Sound-proof material 16 can reduce the noise of projector, and a relatively quietly teaching environment is provided.When level sensor 18 detects that water tank 9 middle water levels are when low, low liquid level warning lamp 19 lights, prompting moisturizing.Sealing-plug 21 is opened, in water tank 9, added distilled water.The effect of capillary coil pipe 10 is that chilled water is lowered the temperature, and chilled water adopts distilled water can avoid the interior fouling of capillary coil pipe 10 to stop up.During shutting down, motor-driven lens lid 22 covers projection lens 3, protection projection lens 3, and negative pressure suction nozzle 23 is cleared up projection lens 3 surfaces in the time that motor-driven lens lid 22 is opened, and keeps the cleanliness factor on projection lens 3 surfaces.Because the resistance of flow of cooling water in capillary coil pipe 10 is larger, water pump 11 is arranged between water tank 9 and capillary coil pipe 10, can improve the trafficability characteristic of capillary coil pipe 10.The feature that the utility model uses for classroom, has frequency of maintenance low, can effectively avoid the impact on optics such as chalk dust in classroom.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. a classroom instruction projector, comprise housing (15), in housing (15), be provided with projection light source (1), projecting light path (2) and projection lens (3), it is characterized in that: described projection light source (1), projecting light path (2) and projection lens (3) are encapsulated in same cylindrical seal cover (4) successively, wherein projection lens (3) is fixed on the end face of cylindrical seal cover (4), the inner side of the one side of projection lens (3) in cylindrical seal cover (4), the outside of the another side of projection lens (3) in cylindrical seal cover (4), the surface sliding of cylindrical seal cover (4) is provided with the cooling water pipe (5) of several and cylindrical seal cover axially parallel, cooling water pipe (5) is connected with into water ring (6) in one end of projection lens (3) one sides, cooling water pipe (5) is connected with out water ring (7) in one end of projection light source (1) one side, water inlet ring (6) is connected to water tank (9) by flexible pipe (8), go out water ring (7) and be connected to capillary coil pipe (10) by flexible pipe (8), between water tank (9) and capillary coil pipe (10), be provided with water pump (11), the bottom surface that cooling water pipe (5) contacts with cylindrical seal cover (4) is arc, the curvature of cooling water pipe (5) bottom surface is identical with the curvature of cylindrical seal cover (4), the both sides of each cooling water pipe (5) bottom surface are respectively arranged with radiating fin (12), go out water ring (7) and be connected with electric rotating machine (13), electric rotating machine (13) arranged outside has fan (14).
2. classroom instruction projector according to claim 1, is characterized in that: described housing (15) inside surface is provided with Sound-proof material (16).
3. classroom instruction projector according to claim 1, is characterized in that: in described radiating fin (12), be provided with multiple air flow channels (17).
4. classroom instruction projector according to claim 1, it is characterized in that: in described water tank (9), be provided with level sensor (18), water tank (9) is outside equipped with low liquid level warning lamp (19) and water supplement port (20), and water supplement port (20) is provided with sealing-plug (21).
5. classroom instruction projector according to claim 1, it is characterized in that: the arranged outside of described projection lens (3) has motor-driven lens lid (22), the inner side of motor-driven lens lid (22) is provided with negative pressure suction nozzle (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320863464.6U CN203630988U (en) | 2013-12-16 | 2013-12-16 | Projector for classroom teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320863464.6U CN203630988U (en) | 2013-12-16 | 2013-12-16 | Projector for classroom teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203630988U true CN203630988U (en) | 2014-06-04 |
Family
ID=50817445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320863464.6U Expired - Fee Related CN203630988U (en) | 2013-12-16 | 2013-12-16 | Projector for classroom teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203630988U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106896630A (en) * | 2017-04-25 | 2017-06-27 | 安徽庆睿实业有限责任公司 | A kind of intelligent multimedia projecting apparatus |
| CN108105566A (en) * | 2017-12-14 | 2018-06-01 | 芜湖润蓝生物科技有限公司 | A kind of multimedia teacher 3D projecting apparatus fixing devices |
| CN108428377A (en) * | 2018-05-15 | 2018-08-21 | 苏州云世界网络传媒有限公司 | A kind of distance education training device |
| CN109016825A (en) * | 2018-06-21 | 2018-12-18 | 芜湖恒丰彩印包装股份有限公司 | A kind of packages printing cooling water device |
-
2013
- 2013-12-16 CN CN201320863464.6U patent/CN203630988U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106896630A (en) * | 2017-04-25 | 2017-06-27 | 安徽庆睿实业有限责任公司 | A kind of intelligent multimedia projecting apparatus |
| CN108105566A (en) * | 2017-12-14 | 2018-06-01 | 芜湖润蓝生物科技有限公司 | A kind of multimedia teacher 3D projecting apparatus fixing devices |
| CN108428377A (en) * | 2018-05-15 | 2018-08-21 | 苏州云世界网络传媒有限公司 | A kind of distance education training device |
| CN109016825A (en) * | 2018-06-21 | 2018-12-18 | 芜湖恒丰彩印包装股份有限公司 | A kind of packages printing cooling water device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20141216 |
|
| EXPY | Termination of patent right or utility model |