CN110467069B - Elevator control device - Google Patents
Elevator control device Download PDFInfo
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- CN110467069B CN110467069B CN201810446551.9A CN201810446551A CN110467069B CN 110467069 B CN110467069 B CN 110467069B CN 201810446551 A CN201810446551 A CN 201810446551A CN 110467069 B CN110467069 B CN 110467069B
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- radiator
- shell
- control device
- elevator control
- cooling fan
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3415—Control system configuration and the data transmission or communication within the control system
- B66B1/3423—Control system configuration, i.e. lay-out
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
- B66B11/024—Ventilation systems
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses an elevator control device, wherein a shell of the elevator control device is a cuboid, an air suction port is arranged at the lower part of the shell, and an air exhaust port is arranged at the upper part of the shell; the radiator is fixed on the back panel of the shell, and the rectangular fin plate of the radiator is parallel to the side panel of the shell; the air inlet surface of the radiator is higher than the air inlet of the shell; the air outlet surface of the radiator is lower than the air outlet of the shell; the lower end of the air inlet surface of the cooling fan is abutted against the upper end of the heated plate of the radiator, and the upper end of the air inlet surface is abutted against the shell back panel; the included angle between the axial direction of the rotating shaft of the cooling fan and the upper length direction and the lower length direction of the rectangular fin plate is 10-80 degrees; and a closed air channel is formed between the air outlet surface of the radiator and the air inlet surface of the cooling fan. The elevator control device can improve the heat dissipation capacity of the radiator, and can adopt the longitudinal long thin shell to reduce the thickness of the elevator control device.
Description
Technical Field
The invention relates to an elevator technology, in particular to an elevator control device.
Background
As shown in fig. 1, in the conventional elevator control device, a cooling fan 14 is disposed below a radiator 12, and the direction of air flow between a rotary shaft 14a and a radiator fin 12b is completely the same. After the cold air is blown into the space between the radiator fins 12b by the cooling fan 14, the heat conducted from the electronic switching element 13 to the radiator fins 12b through the radiator heating surface 12a is taken away, and the cold air is changed into hot air and discharged from the exhaust port 11b of the housing 11 to the outside of the elevator control apparatus. The reason for this arrangement is that the air flow blown by the cooling fan can obtain a higher initial speed, and after entering the gaps of the radiator fins 12b, the heat can be taken away quickly, so that the radiator has a better radiating effect.
However, in recent years, many elevators have been provided with a machine room for placing an elevator control device, and the elevator control device is disposed in a narrow space such as a hoistway, and particularly, in a home elevator (villa elevator), the space in which the elevator control device can be disposed is more limited, and therefore, it is necessary to make the control device thin. Chinese patent CN00809236.2 considers that the diameter of the cooling fan hub is too large to be the root cause of the traditional heat dissipation method, and proposes a method of arranging the cooling fan rotating shaft 14a orthogonal to the heat sink heating surface 12a, as shown in fig. 2. Since the thickness of the cooling fan 14 is much smaller than the hub diameter thereof, the thickness of the control device can be made smaller than the hub diameter of the cooling fan 14, thereby achieving thinning.
However, the above solutions have problems: the whole airflow channel has more elbows and high local head loss, so that the airflow flowing speed is low, and the heat dissipation effect is limited. Even if the proposed solution is simplified, as shown in fig. 3, the cooling fan rotation axis 14a is arranged orthogonally to the radiator fin, and the following problems still exist:
due to the rotating action of the cooling fan blades 14b, the airflow is actually in a spiral trajectory through the cooling fan 14. When viewed from the front, and assuming that the cooling fan 14b rotates clockwise (the same effect occurs when rotating counterclockwise, a bit less), there is also a clockwise movement of the airflow in the wind tunnel 16. Since the air flows between the radiator fins 12b are all moving upward, there is "clashing" of the air flows on the right side thereof, thereby forming a turbulent zone, as shown by the hatched portion in fig. 4. Since it is considered that the air flow of the cooling fan air intake face 14d is rapidly sucked into the cooling fan 14 from the side view, the turbulent flow region is mainly concentrated near the case back plate 11c as shown by the hatched portion in fig. 3. Overall, the zone of turbulence is a cube near the right rear in the wind tunnel 16. This corresponds to a "choke point" which causes the air flow to become slow in the gap on the side of the radiator fin 12b, which results in a severe impairment of the heat dissipation capacity on the side of the radiator 12, and thus the overall heat dissipation is also compromised.
Disclosure of Invention
The invention provides an elevator control device, which can improve the heat dissipation capacity of a radiator, and can adopt a longitudinal long thin shell to reduce the thickness of the elevator control device.
In order to solve the technical problem, the elevator control device provided by the invention comprises a shell 11, a radiator 12 and a cooling fan 14;
the shell 11 is a cuboid, the lower part of the shell is provided with an air suction port 11a, and the upper part of the shell is provided with an air exhaust port 11 b;
the radiator 12 comprises a heated plate 12a and a plurality of rectangular fin plates 12 b; the front end of the rectangular fin plate 12b is fixedly connected with the back of the heated plate 12a, and the rectangular fin plates 12b are parallel to each other;
the heat sink 12 is arranged in the housing 11 and fixed on the housing back panel 11c, the rectangular fins 12b of the heat sink are parallel to the left and right side plates 11d of the housing 11, and the rear ends of the leftmost and rightmost rectangular fins 12b are attached to the housing back panel 11 c;
an electronic switching element 13 is attached to the front of the heated plate 12a of the heat sink 12;
the bottom end of the radiator 12 is used as an air inlet surface 12c, and the bottom end of the radiator 12 is higher than the air inlet 11a of the shell 11;
the top end of the radiator 12 is an air outlet surface 12d, and the top end of the radiator 12 is lower than the air outlet 11b of the shell 11;
the cooling fan 14 is arranged in the housing 11 and above the radiator 12;
the lower end of the air intake surface 14d of the cooling fan 14 abuts against the upper end of the heated plate 12a of the radiator 12;
the upper end of the air intake surface 14d of the cooling fan 14 abuts against the casing back surface plate 11 c;
an included angle theta between the axial direction of the rotating shaft 14a of the cooling fan 14 and the upper length direction and the lower length direction of the rectangular fin plate 12b is 10-80 degrees;
a closed air duct 16 is formed between the air outlet surface 12d of the heat sink and the air inlet surface 14d of the cooling fan 14.
Preferably, θ is between 20 ° and 70 °.
Preferably, R × cos θ < T;
r is the cooling fan 14 hub diameter and T is the thickness occupied by the heat sink 12 within the housing.
Preferably, T is less than or equal to R/2.
Preferably, H > 3W, W > 3D;
h is the vertical height of the housing 11, W is the horizontal width of the housing 11, and D is the front-back thickness of the housing 11.
Preferably, the cooling fan 14 is an axial flow fan.
Preferably, the electronic switching element 13 is used for converting the form of electric energy required for the operation of the elevator.
Preferably, the electronic switching element 13 includes any one or more of an insulated gate bipolar transistor, a smart power module, and a diode bridge stack.
Preferably, a strainer 15 is attached to the inside of the air inlet 11 a.
Preferably, the air inlet 11a is arranged at the lower part of the front panel of the casing 11;
the exhaust port 11b is provided in the upper portion of the front panel of the housing 11.
Preferably, the air inlet 11a is arranged at the lower part of the left side plate or the right side plate of the casing 11;
the exhaust port 11b is provided in the top panel of the housing 11.
In the elevator control device of the invention, the cooling fan 14 is used for cooling the radiator 12, the direction of the rotating shaft 14a of the cooling fan is neither parallel to nor orthogonal to the direction of the airflow between the radiator fins 12b, because the cooling fan 14 is obliquely arranged relative to the radiator 12, the turbulent flow area caused by the rotation of the cooling fan blades 14b is compressed into a vertical column with triangular sides, the effect of blocking the airflow between the rectangular fins 12b of the radiator on the side is greatly reduced, and the heat dissipation capacity of the radiator 12 is obviously improved. Moreover, since the cooling fan 14 is disposed obliquely with respect to the radiator 12, the space between the front and back inside the case occupied by the cooling fan 14 is smaller than the diameter of the hub of the cooling fan 14, and the longitudinally long thin case 11 can be employed, reducing the thickness of the elevator control apparatus.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the present invention are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a heat dissipation manner of a conventional elevator control apparatus; schematic diagram of heat dissipation mode of elevator control device
Fig. 2 is a schematic diagram of a heat dissipation mode of an elevator control device in patent CN 00809236.2;
fig. 3 is a simplified schematic diagram of a heat dissipation type air duct of an elevator control device in patent CN 00809236.2;
fig. 4 is an analysis diagram of an airflow between a radiator and a cooling fan in a heat radiation manner front view direction of the elevator control apparatus in CN 00809236.2;
fig. 5 is a schematic structural view of an embodiment of an elevator control apparatus of the present invention;
fig. 6 is an external view of a casing of an embodiment of the elevator control apparatus of the present invention;
fig. 7 is a schematic structural view of another embodiment of the elevator control apparatus of the present invention.
Description of reference numerals:
11a housing; 11a suction port; 11b an exhaust port; 11c a back panel; 11d side plates; 12a heat sink; 12a radiator heated plate; 12b a rectangular fin of a radiator; 12c radiator inlet face; 12d, a radiator air outlet surface; 13 an electronic switching element; 14a cooling fan; 14a fan rotating shaft; 14b fan blades; 14d fan inlet face; 15, filtering the screen; 16 air ducts.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
Example one
As shown in fig. 5, the elevator control apparatus includes a housing 11, a radiator 12, a cooling fan 14;
the shell 11 is a cuboid, the lower part of the shell is provided with an air suction port 11a, and the upper part of the shell is provided with an air exhaust port 11 b;
the radiator 12 comprises a heated plate 12a and a plurality of rectangular fin plates 12 b; the front end of the rectangular fin plate 12b is fixedly connected with the back of the heated plate 12a, and the rectangular fin plates 12b are parallel to each other;
the heat sink 12 is arranged in the housing 11 and fixed on the housing back panel 11c, the rectangular fins 12b are parallel to the left and right side plates 11d of the housing 11, and the rear ends of the leftmost and rightmost rectangular fins 12b are attached to the housing back panel 11 c;
an electronic switching element 13 is attached to the front of the heated plate 12a of the heat sink 12;
the bottom end of the radiator 12 is used as an air inlet surface 12c, and the bottom end of the radiator 12 is higher than the air inlet 11a of the shell 11;
the top end of the radiator 12 is an air outlet surface 12d, and the top end of the radiator 12 is lower than the air outlet 11b of the shell 11;
the cooling fan 14 is arranged in the housing 11 and above the radiator 12;
the lower end of the air intake surface 14d of the cooling fan 14 abuts against the upper end of the heated plate 12a of the radiator 12;
the upper end of the air inlet surface 14d of the cooling fan 14 abuts against the housing back plate 11 c;
the included angle theta between the axial direction of the rotating shaft 14a of the blade 14b of the cooling fan 14 and the vertical length direction of the rectangular fin 12b is 10-80 degrees;
a closed air duct 16 is formed between the air outlet surface 12d of the heat sink and the air inlet surface 14d of the cooling fan 14.
The angle θ between the direction of the rotation axis 14a of the cooling fan 14 and the direction of the radiator fin 12b is between 20 ° and 70 °.
Preferably, θ is between 20 ° and 70 °.
In the elevator control device according to the first embodiment, the cooling fan 14 is used for cooling the radiator 12, and the direction of the rotating shaft 14a is neither parallel to nor orthogonal to the direction of the airflow between the radiator fins 12b, because the cooling fan 14 is obliquely arranged relative to the radiator 12, the turbulent flow region caused by the rotation of the cooling fan blades 14b is compressed into a vertical column with triangular sides (shaded in fig. 5), which is much smaller than the cubic turbulent flow region of the solution of patent CN00809236.2, that is, the "blocking" effect on the airflow between the radiator fins 12b on the one side is greatly reduced, and the heat dissipation capability of the radiator 12 is remarkably improved. Moreover, since the cooling fan 14 is disposed obliquely with respect to the radiator 12, the space between the front and back inside the case occupied by the cooling fan 14 is smaller than the diameter of the hub of the cooling fan 14, and the longitudinally long thin case 11 can be employed, reducing the thickness of the elevator control apparatus.
Example two
An elevator control device according to the first embodiment, wherein R × cos θ < T; r is the cooling fan 14 hub diameter and T is the thickness occupied by the heat sink 12 within the housing.
For example, the angle θ between the direction of the rotation axis 14a of the cooling fan 14 and the direction of the radiator fin 12b is 64 °, the thickness T of the radiator 12 occupied in the housing 11 is 35mm, and the hub diameter R of the cooling fan 14 is 75mm, so that R θ is 75 ° cos 64 ° 32.87mm <35 mm.
Preferably, T ≦ R/2, i.e., the thickness occupied by the heat sink 12 within the housing 11 does not exceed 1/2 the diameter of the hub of the cooling fan 14.
Preferably, the upper and lower height dimension H of the housing 11 is far larger than the left and right width dimension W, H > 3W, and the front and back thickness dimension D is far smaller than the width dimension W, W > 3D, and is a long and thin cuboid.
Preferably, the cooling fan 14 is an axial fan.
Preferably, the electronic switching element 13 is used to convert the form of electrical energy required for the operation of the elevator.
Preferably, the electronic switch element 13 may include any one or more of an IGBT (Insulated Gate Bipolar Transistor), an IPM (Intelligent Power Module), and a diode bridge stack.
Preferably, a strainer 15 is attached to the inside of the air inlet 11 a.
In the elevator control device according to the second embodiment, the product of the diameter of the hub of the cooling fan 14 and the cosine of the airflow direction included angle θ between the rotating shaft 14a and the radiator fin 12b does not exceed the thickness of the radiator 12 in the casing; the air outlet end 12d of the radiator 12, the air inlet surface 14d of the cooling fan 14 and the back panel 11c of the housing 11 form three sides of a triangular prism; the triangular top and bottom surfaces of the triangular prism are sealed to form the air duct 16.
EXAMPLE III
In the elevator control device according to the first embodiment, as shown in fig. 6, the suction port 11a is provided at a lower portion of the front plate of the casing 11, and the exhaust port 11b is provided at an upper portion of the front plate of the casing 11.
Example four
In the elevator control device according to the first embodiment, as shown in fig. 7, the suction port 11a is provided in a lower portion of a left side plate or a right side plate of the casing 11, and the exhaust port 11b is provided in a top panel of the casing 11.
For a household elevator with extremely limited hoistway space, the small clearance between the car and the elevator control device often causes insufficient airflow in front of the suction port 11a and the exhaust port 11b when the car stops at the elevator control device. In the elevator control device of the fourth embodiment, cold air is sucked from both sides of the device, and finally hot air is discharged from the top of the device, and the air flow before the suction port 11a and the discharge port 11b is smooth.
The above are merely preferred embodiments of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art to which the present application pertains. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (11)
1. An elevator control device, characterized by comprising a housing (11), a radiator (12), and a cooling fan (14);
the shell (11) is a cuboid, the lower part of the shell is provided with an air suction port (11a), and the upper part of the shell is provided with an air exhaust port (11 b);
the radiator (12) comprises a heated plate (12a) and a plurality of rectangular fin plates (12 b); the front end of the rectangular fin plate (12b) is fixedly connected with the back of the heated plate (12a), and the rectangular fin plates (12b) are parallel to each other;
the radiator (12) is arranged in the shell (11) and fixed on a shell back panel (11c), the rectangular fin plates (12b) of the radiator are parallel to the left side plate and the right side plate (11d) of the shell (11), and the rear ends of the rectangular fin plates (12b) at the leftmost side and the rightmost side are attached to the shell back panel (11 c);
an electronic switch element (13) is attached to the front of a heated plate (12a) of the radiator (12);
the bottom end of the radiator (12) is used as an air inlet surface (12c), and the bottom end of the radiator (12) is higher than an air inlet (11a) of the shell (11);
the top end of the radiator (12) is an air outlet surface (12d), and the top end of the radiator (12) is lower than an air outlet (11b) of the shell (11);
the cooling fan (14) is arranged in the shell (11) and is positioned above the radiator (12);
the lower end of the air inlet surface (14d) of the cooling fan (14) is abutted against the upper end of the heated plate (12a) of the radiator (12);
the upper end of the air intake surface (14d) of the cooling fan (14) abuts against the casing back surface plate (11 c);
an included angle theta between the axial direction of a rotating shaft (14a) of the cooling fan (14) and the upper length direction and the lower length direction of the rectangular fin plate (12b) is 10-80 degrees;
and a closed air channel (16) is formed between the air outlet surface (12d) of the radiator and the air inlet surface (14d) of the cooling fan (14).
2. Elevator control device according to claim 1,
theta is between 20 deg. and 70 deg..
3. Elevator control device according to claim 1,
R*cosθ<T；
r is the diameter of the hub of the cooling fan (14) and T is the thickness occupied by the radiator (12) in the housing.
4. Elevator control device according to claim 3,
T≤R/2。
5. elevator control device according to claim 1,
H＞3W，W＞3D；
h is the vertical height dimension of the shell (11), W is the horizontal width dimension of the shell (11), and D is the front and back thickness dimension of the shell (11).
6. Elevator control device according to claim 1,
the cooling fan (14) is an axial flow fan.
7. Elevator control device according to claim 1,
the electronic switching element (13) is used for converting the electric energy form required by the operation of the elevator.
8. Elevator control device according to claim 1,
the electronic switching element (13) comprises any one or more of an insulated gate bipolar transistor, a smart power module and a diode bridge stack.
9. Elevator control device according to claim 1,
and a filter screen (15) is additionally arranged on the inner side of the air suction port (11 a).
10. Elevator control device according to claim 1,
the air suction port (11a) is arranged at the lower part of the front panel of the shell (11);
the exhaust port (11b) is provided in the upper portion of the front panel of the housing (11).
11. Elevator control device according to claim 1,
the air suction port (11a) is arranged at the lower part of the left side plate or the right side plate of the shell (11);
the exhaust port (11b) is provided on the top panel of the housing (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810446551.9A CN110467069B (en) | 2018-05-11 | 2018-05-11 | Elevator control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810446551.9A CN110467069B (en) | 2018-05-11 | 2018-05-11 | Elevator control device |
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| Publication Number | Publication Date |
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| CN110467069A CN110467069A (en) | 2019-11-19 |
| CN110467069B true CN110467069B (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810446551.9A Active CN110467069B (en) | 2018-05-11 | 2018-05-11 | Elevator control device |
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| CN113682915A (en) * | 2021-08-24 | 2021-11-23 | 安徽迅立达电梯有限公司 | Energy-storage type elevator energy-saving system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2760341B2 (en) * | 1996-05-15 | 1998-05-28 | 日本電気株式会社 | Semiconductor element cooling structure |
| JPH11110086A (en) * | 1997-10-01 | 1999-04-23 | Matsushita Electric Ind Co Ltd | Information processor with cooling structure |
| CN1257442C (en) * | 2003-04-14 | 2006-05-24 | 丽台科技股份有限公司 | Heat readiation system |
| CN101212882B (en) * | 2006-12-27 | 2011-06-08 | 富准精密工业(深圳)有限公司 | Video card display device |
| JP5661055B2 (en) * | 2012-02-08 | 2015-01-28 | 三菱電機株式会社 | Control device |
| CN104582434B (en) * | 2014-12-23 | 2017-08-25 | 深圳市九洲电器有限公司 | A kind of set top box radiator structure and set top box |
| CN106276446B (en) * | 2015-06-05 | 2019-02-01 | 上海三菱电梯有限公司 | Elevator control gear |
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