Bidirectional vertical cold and warm air blower

Abstract

The utility model relates to the technical field of fans, and discloses a two-way vertical cold and warm air blower which comprises a machine shell, two frame bodies, a plurality of fans, a heat exchange coil pipe and a synchronous driving assembly, ventilation openings are formed in the upper portion and the lower portion of the front side of the machine shell, the two sides of the frame bodies are rotationally connected with the side wall of the machine shell through rotating shafts, and the fans are connected into the two frame bodies respectively. Wherein the air direction of the fan in one frame body is opposite to that of the fan in the other frame body, the fans are parallel to one another, the heat exchange coil is arranged in the machine shell and is made of a heat conduction material, and the synchronous driving assembly comprises two belt wheels and a belt wound on the two belt wheels. According to the device, on the basis of refrigeration, the two frame bodies are synchronously adjusted to rotate, hot air which is sucked in from the upper ventilation opening and subjected to heat exchange can be ingeniously blown out from the lower ventilation opening, and the indoor heating effect is improved through the physical performance of the hot air.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a bidirectional vertical cooling and heating fan. Background Art

[0002] Coil fans are widely used in hotels, office buildings, hospitals, commercial and residential buildings, scientific research institutions, etc. There are many types of coil fans, including horizontal concealed fan coils (with return air box), horizontal exposed fan coils, vertical exposed fans, etc. Among them, the most commonly used are vertical coil fans.

[0003] Existing vertical coil fans are usually used for cooling in summer. The fans usually include a chassis and a fan. Many heat exchange coils are set inside. When extremely low temperature water is added to the heat exchange coil, the air passing through will be cooled by the heat exchange temperature through the fan, so that relatively low cooling air is blown out. The air outlet is set at a relatively high position, mainly relying on the heavier physical property of cold air compared to hot air to make the cold air blown out from the high place drop, so as to ensure uniform cooling of the entire space. When heating is needed in winter, high temperature hot water is circulated into the heat exchange coil, and the temperature of the air will rise after passing through the heat exchange coil, so that it is discharged from the air outlet to provide hot air to achieve the heating effect. (Hot air will rise automatically and should be heated from bottom to top). It is best for hot air to be discharged downward, but due to the original structure, the hot air is only slightly adjusted downward at the original angle.

[0004] However, when the existing vertical coil fan is heating, since hot air is lighter than cold air, when the heated air is discharged from the air outlet of the chassis, it will always float upward, resulting in people only feeling that the upper body is hot for a certain period of time, while the lower part of the body, especially the legs and feet, is not very hot. Even if the temperature of the circulating hot water in the heat exchange coil is increased, the temperature felt by the lower body will only change slightly, but the upper body will feel hot, resulting in a poor heating effect. Utility Model Content

[0005] The utility model provides a two-way vertical cooling and heating fan. On the basis of cooling, the device can cleverly achieve the drawing in of air from the upper vent by synchronously adjusting the rotation of two frames, and the hot air after heat exchange can be blown out from the lower vent, thereby utilizing the physical properties of the hot air to improve the heating effect in the house.

[0006] The utility model provides a two-way vertical cooling and heating fan, which comprises a machine shell, two frames, a plurality of fans, a heat exchange coil pipe and a synchronous driving assembly. Ventilation openings are formed in the upper and lower parts of the front side of the machine shell. The two frames are respectively arranged at the two ventilation openings. Both sides of each frame are rotationally connected with the side wall of the machine shell through a rotating shaft. The plurality of fans are respectively connected in the two frames. The air flow directions of the fans in one of the frames are opposite to those of the fans in the other frame. The fans are parallel to each other. The heat exchange coil pipe is arranged in the machine shell and made of a heat-conducting material, and is used for raising or lowering the temperature of the air flowing in the machine shell. The synchronous driving assembly comprises two belt wheels and a belt wound around the two belt wheels. The two belt wheels are respectively sleeved and fixedly connected to the two rotating shafts. The synchronous driving assembly is used for driving the rotation of the rotating shafts so as to change the air flow directions of the fans in the upper and lower frames.

[0007] Preferably, one of the rotating shafts extends continuously outwards, and a worm wheel is fixedly sleeved on the extending part. The worm wheel is engaged with a worm. Front and rear guard plates are arranged on one side of the machine shell close to the belt wheel. The axis of the worm extends in the front-rear direction, and the worm is rotationally connected with the guard plates.

[0008] Preferably, the width dimension of the ventilation opening is larger than that of the frame, and soft sealing strips are connected to the upper and lower parts of the frame.

[0009] Preferably, a water collecting tray is arranged at the bottom inside the machine shell.

[0010] Preferably, guide plates are arranged at positions on the rear inner wall of the machine shell close to the two ventilation openings. The surface of the guide plate close to the ventilation opening is arc-shaped and is used for assisting in changing the air flow direction.

[0011] Preferably, dust-proof nets are arranged at the two openings of the frame.

[0012] Preferably, the heat exchange coil pipe comprises a water inlet and a water outlet. The water inlet and the water outlet penetrate through the machine shell. The water inlet is located below the water outlet. The part of the heat exchange coil pipe between the water inlet and the water outlet is communicated through a plurality of vortex-shaped coil channels connected end to end.

[0013] Preferably, one end of the worm is connected with a driving part for driving its rotation.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing ventilation openings at the upper and lower parts on the front side of the casing, the casing can communicate with its inner cavity through two openings. Through the two provided frames, the effect of rotation inside the casing can be achieved. By defining the opposite directions of the airflows of the fans on the two frames, an effect can be formed where the fan in one frame blows air outwards and the fan in the other frame sucks air into the casing, constituting a complementary structure of one exhaust and one intake. By arranging the heat exchange coil inside the casing and at a position between the two ventilation openings, the effect can be achieved that the air drawn into the casing must pass through the heat exchange coil and then be discharged through the other ventilation opening. Through the provided heat exchange coil, cold flowing water close to zero degrees or high-temperature hot water can be injected through the water inlet to conduct heat exchange with the air, thereby achieving the effect of cooling or heating. Specifically, the rotating shafts of the two frames are synchronously connected through belt pulleys and belts. When one of the rotating shafts is rotated, the other rotating shaft rotates synchronously and in the same direction, thereby achieving the effect of changing the air intake from one ventilation opening into the casing to exhausting the air inside the casing outwards, realizing the change of the air flow direction. Specifically, when heating is required in winter, high-temperature hot water is circulated and injected into the heat exchange coil, and the fans at the lower ventilation opening are controlled to exhaust air outwards. At this time, the fans at the upper ventilation opening will send air into the casing. The air passes through the heat exchange coil, and thus the temperature rises and is finally discharged through the lower ventilation opening. The hot air discharged from the bottom will slowly move upwards under the action of its physical properties, thereby achieving the effect of comprehensively heating the bottom and upper parts of the room, avoiding the situation where people in the room only feel that the upper body is relatively hot, and the lower part of the body, especially the legs and feet, is not very hot.

[0015] In summary, based on refrigeration, this device can, by synchronously adjusting the rotation of the two frames, cleverly achieve the effect that the hot air drawn in through the upper ventilation opening can be blown out through the lower ventilation opening after heat exchange, and utilize the physical properties of the hot air to improve the heating effect in the room. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view perspective structural schematic diagram of a two-way vertical cooling and heating fan provided by an embodiment of the present utility model;

[0017] Figure 2 It is an internal structural schematic diagram of a two-way vertical cooling and heating fan provided by an embodiment of the present utility model;

[0018] Figure 3 It is a partially sectional left view perspective structural schematic diagram of the casing of a two-way vertical cooling and heating fan provided by an embodiment of the present utility model;

[0019] Figure 4 It is a structural schematic diagram of a partial heat exchange coil of a two-way vertical cooling and heating fan provided by an embodiment of the present utility model.

[0020] Description of the reference numerals in the drawings:

[0021] 1. Cabinet; 101. Ventilation opening; 2. Frame; 3. Rotating shaft; 4. Fan; 5. Heat exchange coil; 51. Water inlet; 52. Water outlet; 53. Coil passage; 54. Turning pipeline; 61. Pulley; 62. Belt; 7. Worm gear; 8. Worm; 9. Guard plate; 10. Sealing strip; 11. Water collecting tray; 12. Guide plate; 13. Dust-proof net; 14. Driving member. Detailed implementation manners

[0022] The following will describe in detail a specific implementation manner of the present utility model in conjunction with the drawings. It should be understood that the protection scope of the present utility model is not limited by the specific implementation manner.

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the technical solutions of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0024] Refer to Figure 1 and Figure 2 The present utility model provides a two-way vertical cooling and heating fan, including: a cabinet 1, two frames 2, multiple fans 4, a heat exchange coil 5, and a synchronous drive assembly. Ventilation openings 101 are respectively opened at the upper and lower parts of the front side of the cabinet 1. The two frames 2 are respectively placed at the two ventilation openings 101. Both sides of the frame 2 are rotationally connected to the side wall of the cabinet 1 through a rotating shaft 3. Multiple fans 4 are respectively connected in the two frames 2. The air flow direction of the fans 4 in one of the frames 2 is opposite to that of the fans 4 in the other frame 2. Each fan 4 is parallel to each other. The heat exchange coil 5 is placed in the cabinet 1 and is made of a heat-conducting material. The heat exchange coil 5 includes a water inlet 51 and a water outlet 52. The water inlet 51 and the water outlet 52 penetrate through the cabinet 1. The water inlet 51 is located below the water outlet 52. The heat exchange coil 5 is used to increase or decrease the temperature of the air flowing in the cabinet 1. The synchronous drive assembly includes two pulleys 61 and a belt 62 wound around the two pulleys 61. The two pulleys 61 are respectively sleeved and fixedly connected to the two rotating shafts 3. The synchronous drive assembly is used to drive the rotation of the rotating shaft 3 to change the air flow direction of the fans 4 in the upper and lower frames 2.

[0025] In the above embodiments, the present device is provided with ventilation openings 101 at both the upper and lower parts of the front side of the casing 1, enabling the casing 1 to communicate with its inner cavity through two openings. By providing two frames 2, the effect of rotation within the casing 1 can be achieved. By defining that the air blowing directions of the fans 4 on the two frames 2 are opposite, an effect can be formed where the fan 4 in one frame 2 blows air outwards, and the fan 4 in the other frame 2 sucks air into the casing 1, constituting a complementary structure of one exhaust and one intake. By arranging the heat exchange coil 5 within the casing 1 and at a position between the two ventilation openings 101, the effect can be achieved that the air drawn into the casing 1 must pass through the heat exchange coil 5 and then be discharged through the other ventilation opening 101. By providing the heat exchange coil 5, cold flowing water close to zero degrees or high-temperature hot water can be injected through the water inlet 51 to conduct heat exchange with the air, thereby achieving the effect of cooling or heating. Specifically, the rotating shafts 3 of the two frames 2 are synchronously connected through belt pulleys 61 and a belt 62. When one of the rotating shafts 3 is rotated, the other rotating shaft 3 rotates synchronously and in the same direction, thereby achieving the effect of changing the air suction from one ventilation opening 101 into the casing 1 to the air extraction from the casing 1 outwards, realizing the change of the air blowing direction. Specifically, when heating is required in winter, high-temperature hot water is circulated and injected into the heat exchange coil 5, and the fans 4 at the lower ventilation opening 101 are controlled to exhaust air outwards. At this time, the fans 4 at the upper ventilation opening 101 will send air into the casing 1. The air passes through the heat exchange coil 5, and thus the temperature rises and is finally discharged through the lower ventilation opening 101. The hot air discharged from the bottom will slowly move upwards under the action of its physical properties, thereby achieving the effect of comprehensive heating of the bottom and upper parts of the room, avoiding situations where people in the room only feel that the upper body is relatively hot, and the lower part of the body, especially the legs and feet, is not very hot. In summary, based on refrigeration, the present device can, by synchronously adjusting the rotation of the two frames 2, cleverly achieve the effect that the hot air drawn in through the upper ventilation opening 101 can be blown out again through the lower ventilation opening 101 after heat exchange, and utilize the physical properties of the hot air to improve the heating effect in the house. It is also relatively convenient and practical in terms of operation and has good application prospects.

[0026] Further, referring to Figure 1 , one of the rotating shafts 3 extends continuously outwards, and a worm gear 7 is fixedly sleeved on the extending part. The worm gear 7 meshes with a worm 8. Front and rear of the side of the casing 1 close to the belt pulley 61 are provided with guard plates 9. The axis of the worm 8 extends in the front-rear direction, and the worm 8 is rotatably connected to the guard plates 9.

[0027] In the above embodiments, by providing the turbine and the worm 8, the effect of locking the rotation of the rotating shaft 3 can be achieved, avoiding phenomena such as the self-rotation of the rotating shaft 3 during use.

[0028] Further, referring to Figure 1 and Figure 2, the width dimension of the vent 101 is greater than the width of the frame body 2, and soft sealing strips 10 are connected to both the upper and lower parts of the frame body 2.

[0029] In the above embodiments, the provided sealing strip 10 can seal the gap between the frame body 2 and the vent 101 as much as possible by extrusion deformation after the frame body 2 rotates. The sealing strip 10 is strip-shaped and has a thickness. It can be made of sponge material or colloidal material. By providing the sealing strip 10, it can be realized that when the frame body 2 is in an inclined state, the gap between the frame body 2 and the vent 101 can still be sealed.

[0030] Further, referring to Figure 2 , a water collecting tray 11 is provided at the bottom inside the machine shell 1.

[0031] In the above embodiments, the provided water collecting tray 11 is used to collect the condensed water that drops after the heat exchange coil 5 condenses. Preferably, an opening adapted to the size of the water collecting tray 11 can be opened on one side of the machine shell 1 near the bottom to facilitate the removal and placement of the water collecting tray 11.

[0032] Further, referring to Figure 2 and Figure 3 , guide plates 12 are provided at positions on the rear inner wall of the machine shell 1 near the two vents 101. The surface of the guide plate 12 close to the vent 101 is arc-shaped and is used to assist in changing the wind direction.

[0033] In the above embodiments, by providing the guide plates 12, it can be realized that the wind direction is assisted to be deflected by 90°. When heating, each blower 4 above draws the wind into the machine shell 1 and is downwardly deflected in an arc-shaped trajectory under the action of the guide plates 12. The guide plates 12 reduce the wind power loss when the drawn-in wind passes through the turning position at the rear of the machine shell 1. Similarly, when refrigeration is required, the wind drawn in by the blower 4 at the bottom will also reduce the wind power loss when it turns upward.

[0034] Further, referring to Figure 2 , dust-proof nets 13 are provided at both openings of the frame body 2.

[0035] In the above embodiments, by providing the dust-proof nets 13, the intake of dust can be greatly reduced. When the dust-proof nets 13 are blocked, the frame body 2 can be rotated to enable the blower 4 on another frame body 2 to blow the dust outwards to achieve the effect of self-cleaning.

[0036] Further, referring to Figure 2 and Figure 4, the heat exchange coil 5 includes a water inlet 51 and a water outlet 52. The water inlet 51 and the water outlet 52 penetrate through the housing 1. The water inlet 51 is located below the water outlet 52. The part of the heat exchange coil 5 between the water inlet 51 and the water outlet 52 is connected through a plurality of vortex-shaped coil channels 53 connected end to end. Each coil channel 53 is fixed to the inner wall of the housing 1 through a connecting frame to ensure stability. Specifically, the material of the heat exchange coil 5 is preferably copper material, which has good heat exchange performance.

[0037] In the above embodiments, specifically, the coil channels 53 are in a plurality of vortex shapes. When cooling water or high-temperature hot water is conveyed upward through the water inlet 51, it will first enter the middle of the vortex of the bottommost coil channel 53 and flow towards the outlet of the coil channel 53 along a vortex-shaped path. Specifically, the outlet of the lower coil channel 53 will enter the middle of the vortex of the adjacent upper coil channel 53 through a turning pipeline 54. By setting a plurality of vortex coil channels 53 in this device, the flowing air can be cooled or heated fully and efficiently, thereby improving the refrigeration or heating effect.

[0038] Further, referring to Figure 1 , one end of the worm 8 is connected with a driving member 14 for driving its rotation.

[0039] In the above embodiments, the driving member 14 can be a servo motor with angle control. At the same time, for energy conservation and cost reduction, it can also be a way of using a rotating handle, and its main purpose is to be able to control the worm 8 to rotate.

[0040] Usage method and working principle: When it is necessary to cool and dissipate heat in summer, inject low-temperature cooling water into the heat dissipation coil in a circulating manner, and control the rotating shaft 3 so that each fan 4 in the bottom frame 2 sucks air into the housing 1. At this time, each fan 4 at the upper ventilation opening 101 will exhaust air outwards. The air entering from the lower ventilation opening 101 is in full contact with the heat exchange coil 5 and then the temperature decreases, and is discharged from the upper ventilation opening 101. When it is necessary to heat in winter, inject high-temperature hot water into the heat exchange coil 5 in a circulating manner, and control each fan 4 at the lower ventilation opening 101 to exhaust air outwards. At this time, the fans 4 at the upper ventilation opening 101 will send air into the housing 1. The air passes through the heat exchange coil 5, and thus the temperature rises, and finally is discharged from the lower ventilation opening 101. The hot air discharged from the bottom will slowly move upward under the action of its physical properties, thereby achieving the effect of comprehensive heating of the bottom and upper parts of the room, and avoiding the situation that people in the room only feel that the upper body is hotter, and the lower part of the body, especially the legs and feet, is not very hot.

[0041] The above-disclosed are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A two-way vertical cooling and heating fan, comprising a casing (1), characterized in that: Also includes: Two vents (101) are both horizontally opened on the same side of the housing (1), and the two vents are respectively located at the upper part and the lower part of the housing (1); Two frames (2) are respectively placed at the two vents (101), and both sides of the frames (2) are rotatably connected to the side walls of the casing (1) via a rotating shaft (3); A plurality of fans (4) are respectively connected to the two frames (2), wherein the wind direction of the fan (4) in one frame (2) is opposite to the wind direction of the fan (4) in the other frame (2), and the fans (4) are parallel to each other; A heat exchange coil (5), connected to the casing (1) and made of a heat-conducting material, the heat exchange coil (5) being used to increase or decrease the temperature of air circulating in the casing (1); The synchronous drive assembly comprises two pulleys (61) and a belt (62) wound around the two pulleys (61). The two pulleys (61) are respectively sleeved and fixedly connected to the two rotating shafts (3). The synchronous drive assembly is used to drive the rotation of the rotating shafts (3) to change the wind direction of the fans (4) in the upper and lower frames (2).

2. A two-way vertical cooling and heating fan as claimed in claim 1, characterized in that: One of the rotating shafts (3) extends continuously outward, and a worm wheel (7) is fixedly mounted on the extension portion, and a worm (8) is meshed with the worm wheel (7). A guard plate (9) is arranged at the front and rear of a side of the housing (1) close to the pulley (61), and the axis of the worm (8) extends in the front-rear direction. The worm (8) is rotatably connected to the guard plate (9).

3. A two-way vertical cooling and heating fan as claimed in claim 2, characterized in that: The width of the vent (101) is greater than the width of the frame (2), and the upper and lower parts of the frame (2) are both connected with soft sealing strips (10).

4. A two-way vertical cooling and heating fan as claimed in claim 1, characterized in that: A water collecting tray (11) is arranged at the bottom of the casing (1).

5. A two-way vertical cooling and heating fan as claimed in claim 1, characterized in that: A guide plate (12) is provided on the rear inner wall of the casing (1) near the two vents (101); a surface of the guide plate (12) near the vents (101) is arranged in an arc shape to assist in changing the wind direction.

6. A two-way vertical cooling and heating fan as claimed in claim 1, characterized in that: Both openings of the frame (2) are provided with dustproof nets (13).

7. A two-way vertical cooling and heating fan as claimed in claim 2, characterized in that: One end of the worm (8) is connected to a driving member (14) for driving the worm (8) to rotate.

Images