KR20230124834A - The fan device with heat exchanger - Google Patents

Abstract

The thickness of the ventilation fan can be minimized by arranging the total heat exchanger at the bottom or top of the blowing fan, and the flow of outdoor and indoor air generated by the rotation of the blowing fan passes through the total heat exchanger. Energy consumption can be reduced by ensuring smooth heat exchange between the air and indoor air.
Disclosed is a ventilation fan comprising a blowing fan installed between front and rear cases and rotated by a motor. More specifically, a blower fan with a motor is installed inside the rear case, an outdoor air outlet is formed on the upper part of the rear case, an indoor air inlet is disposed on the lower part, and the front part of the blower fan is disposed on the front case. An indoor air outlet is formed at the bottom, and an outdoor air inlet is formed at the bottom, but the total heat exchanger is fixed between the outdoor air inlet of the front case and the outdoor air outlet of the rear case by a coupling jaw, and the upper edge of the total heat exchanger A heat exchange ventilator configured to form an induction plate between the rear cases is provided.

Description

The fan device with heat exchanger}

The present invention relates to a heat exchange ventilator, that is, a total heat exchanger. More specifically, a heat exchange ventilator that saves energy by replacing existing ventilators installed inside windows and ducts by using only one blowing fan and total heat exchanger to minimize the thickness of a built-in total heat exchanger It is about.

Unlike ventilators installed inside ceilings or ducts, ventilators for window installation are simple in structure and small in size, so that they can be easily installed on one side of a window, usually a propeller-type blower fan is used. is a method of forcibly exhausting indoor air to the outside, and does not have a means for heat exchange, so that the indoor air warmed by the heating means is released to the outside in the winter season, and the indoor air cooled by the cooling means in the summer season. Since the structure is forcibly discharged to the outdoors, energy waste is large.

Like the heat recovery ventilator of Registered Utility Model No. 202020 (August 26, 2000), "In the casing, an air supply fan and an exhaust fan are installed in both compartments partitioned by longitudinal partitions, respectively, and a heat pipe type heat exchanger is arranged in front of it. In this case, a transverse partition wall is installed between the supply air and exhaust fan and the heat pipe type total heat exchanger, so that the plate type total heat exchanger is located in the central part intersecting the longitudinal partition wall, and the plate type total heat exchanger is multi-stage so that the supply passage and the exhaust passage cross up and down. In addition, Patent Registration No. 946587 (2010.03.03,) related to a heat exchange ventilator is disclosed by citing this.

Conventional ventilation devices not only have two blower fans for supplying and exhausting air, but also have a structure in which the total heat exchanger is located at the center where the longitudinal partition crosses, that is, in front of the blowing fan, so that the front and rear widths and the top and bottom widths are inevitably reduced. It has a thick structure. This increases the manufacturing cost because two blowing fans must be installed, and it is difficult to install inside windows and ducts when the front and rear widths and upper and lower widths of the ventilation device are thick.

Ventilators installed inside windows and ducts make a big difference depending on how slim or thin the thickness of the front and rear widths and top and bottom widths can be made according to the arrangement of the blower fan and total heat exchanger. In addition, a ventilation fan installed inside windows and doors and ducts requires a structure for obtaining an optimal heat exchange effect with one blowing fan and one heat exchange device in order to save manufacturing costs.

A heat exchange ventilator composed of a front case 150, a rear case 110, and a blowing fan 130 configured therebetween,

An indoor air outlet 154 is formed in the upper part of the front case 150, and an outdoor air inlet 155 is formed in the lower part,

An outdoor air outlet 115 is formed on the upper part of the rear case 110, and an indoor air inlet 114 is formed on the lower part,

A total heat exchanger 140 including a plurality of heat transfer plates 141 between the outdoor air inlet 155 and the outdoor air outlet 115 is included.

That is, in order to make the thickness of the ventilation fan as slim as possible, a total heat exchanger is placed at the bottom or top of the blowing fan, but the rear of the blowing fan and the front of the total heat exchanger are blocked so that air flows by the rotation of the blowing fan. However, outdoor air is provided to pass through the total heat exchanger to the room, and indoor air passes through the total heat exchanger to be discharged to the outdoors.

The thickness of the ventilator can be minimized by arranging the total heat exchanger at the bottom or top of the blowing fan, and the flow of outdoor and indoor air generated by the rotation of the blowing fan passes through the total heat exchanger, so the structure is simple and outdoor air It is possible to save energy by enabling smooth heat exchange between the air and indoor air.

Figure 1 is a cross-sectional view of a ventilator installed in a conventional window.
Figure 2 is an exploded perspective view.
Figure 3 is a perspective view showing a total heat exchanger of the components.
Fig. 4 A combined perspective view of Fig. 2;
Fig. 5 A longitudinal sectional view of Fig. 4;
Fig. 6 operating state diagram.
Figure 7 according to an embodiment of the present invention, an exploded perspective view mainly showing the rear case.
8 is an assembled perspective view;
(A) exploded view and (B) assembly view as seen from the side of FIG.
Figure 10 (a) and (b) is a state diagram of the operation implementation as seen from the side, respectively.
Figure 11 (a) exploded perspective view, (b) assembled perspective view shown from the side of another embodiment.
12 (a) and (b) are state diagrams of operation implementations each viewed from the side.

FIG. 2 is an exploded perspective view of the heat exchanging fan 100, with a front case 150, a rear case 110, and a blowing fan 130 rotating by a motor 120 installed between the cases 110 and 150. In the ventilator formed, a blowing fan 130 having a motor 120 is installed inside the rear case 110, and an outdoor air outlet 115 is formed on the upper part of the rear case 110, and at the lower part The indoor air inlet 114 is arranged, the indoor air outlet 154 is formed in the front part of the blowing fan 130 in the front case 150, and the outdoor air inlet 155 is formed in the lower part, The total heat exchanger 140 is fixed between the outdoor air inlet 155 of the front case 150 and the outdoor air outlet 115 of the rear case 110 by coupling jaws 113, 153, and 163, and the upper part of the total heat exchanger 140 A guide plate 112 is formed between the corner and the rear case 110 . The total heat exchanger 140 may be installed on both the lower part, the upper part, or the upper and lower parts of the blowing fan 130.

The total heat exchanger 140 is fixed so as not to move by the coupling jaw 113 of the rear case 110 and the coupling jaw 153 of the front case 150. The coupling jaws 113 and 153 have a structure that protrudes slightly from the case, and take a structure that does not interfere with the flow of indoor air and outdoor air passing through the total heat exchanger 140, only supporting each corner.

An outdoor air inlet 155 is formed in the front case 150 opposite to the indoor air inlet 114 of the rear case 110, which is supported by the coupling jaws 113 and 153 as the total heat exchanger 140 is erected in a diamond shape. because it becomes That is, a blocking plate 151 is formed in the front case 150 opposite to the outdoor air outlet 155 of the rear case 110, so that indoor air passes through the total heat exchanger 140 through the blowing fan 130. It is configured to escape through the indoor air outlet (154).

3, the heat exchanger 140 has a hexahedron shape in which plate-shaped heat exchangers 141, both ends of which are bent at right angles, are repeatedly stacked horizontally and vertically. In this case, the heat exchanger 141 has good thermal conductivity. A copper plate or an aluminum plate may be used.

As a means of forcibly discharging indoor air to the outdoors, a propeller-type blower fan 130 may be used, but since the top and bottom widths of the case increase, a cylindrical sirocco fan that can maximize the use of the internal space is used. can

Since the indoor air inlet 114 and the outdoor air outlet 115 and the indoor air outlet 154 and the outdoor air inlet 155 have adjacent structures, the rear case 110 prevents mixing of air and induces flow. It is possible to form the guide plate 112 and the air guide plate on the inside, and the air guide plate on the inside of the front case.

In the heat exchange ventilator 100, indoor air is introduced through the indoor air inlet 114 by the driving of the blowing fan 130, and then discharged to the outside through the total heat exchanger 140 and the indoor air outlet 154, Outdoor air is introduced into the room by the amount of the exhausted indoor air through the outdoor air inlet 155, and then passed through the total heat exchanger 140 and discharged into the room through the outdoor air outlet 115, and ventilation is performed and total heat exchange is performed at the same time. achieve energy savings.

Meanwhile, in the configuration conditions described above, the outdoor air outlet 115 and the indoor air inlet 114 have a structure in which the distance is too close (adjacent), so outdoor air and indoor air are accurately separated from the outside of the rear case 110. Inflow/outflow can be achieved by mixing together without being mixed together. That is, outdoor air discharged into the room from the outdoor air outlet 115 may be sucked back into the indoor air inlet 114 located adjacent to the room and discharged to the outside (outside), so energy efficiency and air purification efficiency may be lowered. . In order to solve this problem, look at another embodiment in which a configuration is further added together with FIG. 7 below.

In order to prevent mixing (mixing) by separating and inducing fluids (air flow, wind) from the outside of the rear case 110, a plate-shaped spaced portion 1o80 is provided at the inner end of the rear case 110 It can be equipped (installed, configured), including. The spacer 180 is disposed between the outdoor air outlet 115 and the indoor air inlet 114 . The spacer 180 takes the form of a < shape or seagull, and includes an upper spaced plate 181 provided as an upper plate, a spaced lower plate 182 provided as a lower plate, and a direction control unit 183 that determines the direction of fluid. includes

The spacer 180 has an airplane wing or a plate-shaped surface, such as a rectangular blade when viewed from a plane, and is bent at a predetermined angle in the middle along the horizontal direction. It is composed of a spaced upper plate portion 181 provided as an upper inclined blade surface and a spaced lower plate portion 182 provided as a lower inclined blade surface.

Depending on the size difference (large or small) of the angle of refraction a11, the distance between the upper and lower sides of the <shape becomes larger or smaller, and accordingly, as much as the distance between the rear ends of the spaced upper plate part 181 and the spaced lower plate part 182, Between the wind of the outdoor air (f11) discharged from the outdoor air outlet (115) and the wind of the indoor air (f21) introduced from the indoor air inlet (114), that is, the fluid distance (a21) (the distance between the two fluids, moving space between air). Accordingly, the effect of separating the fluids between the outdoor air outlet 115 and the indoor air inlet 114 (separating the flowing fluid by separating them) can be seen. That is, a fluid gap a21 is created between the outdoor air f11 discharged into the room and the indoor air f21 sucked (inflowed) from the room, thereby reducing the possibility of mixing with each other.

The angle of refraction (a11) is preferably 30 degrees or more and less than 90 degrees. If the angle of refraction (a11) is too small, the possibility of mixing indoor air (f21) and outdoor air (f11) increases, and if the angle of refraction (a11) is too large, Many parts of the outdoor air outlet 115 and the indoor air inlet 114 are blocked to prevent (obstruct) the discharge of outdoor air f11 and the inflow of indoor air f21, resulting in increased resistance to the flow of the fluid and efficiency. this may deteriorate.

The direction control unit 183 is positioned (arranged) at a portion where the spaced upper plate 181 and the spaced lower plate 182 meet to form a < shape and are bent (or joined or coupled). The direction control unit 183 includes a spaced-up side hinge coupling part h20 formed at a place where the spaced upper plate 181 and the spaced lower plate part 182 meet (or are bent) at a refraction angle a11, and a spaced-up part side hinge coupling part (h20) includes a rear case side hinge coupling part (h10), which is a place to be attached by being rotatably hinged (coupled and fixed by a hinge) by moving in the vertical (vertical) direction. Although the rear case-side hinge coupling part h10 is formed (constructed) on the case surface located on the indoor side of the rear case 110, conceptually, it is a component of the separation part 180 / direction control part 183 element can be seen. Therefore, it can be seen that the direction control unit 183 includes a rear case-side hinge coupling portion h10 and a separation portion-side hinge coupling portion h20.

In the example of FIG. 10 , the vertical direction of the spacer 180 may be changed or adjusted through the direction adjusting unit 183 . That is, the overall wind direction can be increased or decreased according to the installation location and conditions, surrounding field conditions, consumer preference, etc. This effect is achieved through the function of the direction control unit 183. Even when the spacer 180 is moved up and down by rotating (turning) the direction adjusting part 183, the refraction angle a11 and the fluid distance a21 of the spaced upper plate 181 and the spaced lower plate 182 remain unchanged. Since it is maintained as it is, the function of separating (separating, spacing, separating) the two fluids (indoor air, outdoor air) is maintained without damage. At this time, by applying appropriate frictional resistance to the hinge coupling of the direction adjusting unit 183 (by taking the hinge coupling tightly), the set/changed vertical direction of the spacer 180 may be fixed and maintained.

The development unit 182 may be provided on any one of the spaced upper plate part 181 and the spaced lower plate part 182, or may be provided on both of them, as illustrated in the drawing. See Figure 11.

It is more preferable to adjust the fluid interval a21 differently by changing the refraction angle a11 according to the installation location and conditions, surrounding field conditions, consumer preference, etc. that can include

In the configuration, the deployment part 182 is cut (separated) forward and backward along the length of the body of the spaced upper plate part 181 / spaced lower plate part 182 like the flaps of an airplane wing, and the hinge shaft and hinge in each separated part It has a deployment part 182 configured by forming hinge coupling parts h21 and h22 made of bearings so that they can be refracted (rotated). Using the deployment part 182, the body of the spaced upper plate part 181/spaced lower plate part 182 can be bent (bent) up and down appropriately like the flaps at the back of an airplane wing.

Therefore, it is possible to change (change) the refraction angle a11 and the fluid interval a21 between the spaced upper plate part 181 and the spaced lower plate part 182, so if necessary, the refraction angle a11 is increased or decreased so that the two fluids ( Indoor air, outdoor air) can be spaced far or narrowly or close together. In addition, appropriate frictional resistance may be applied to the hinge coupling of the deployment unit 182 so that the installed (set, adjusted, changed) bent state is maintained (fixed) through the hinge coupling as described above (hinge coupling can be made tight) ). Referring to the known art, the hinge coupling may be provided by configuring and assembling a hinge axis and a hinge bearing on both sides of the contacting component, respectively. Alternatively, the integral member may be cut or grooved in the longitudinal direction to make it flexible and provided to be bent.

However, in the case of using frictional resistance, if the intensity of the frictional force is weakened, it is easy to bend (rotate) when the angle of refraction (a11) is given, but the angle of refraction (a11) set later may be twisted by itself (or due to external factors), and conversely, too much When a strong frictional force is applied, the angle of refraction a11 can be maintained for a long period of time after being set, but it is not easy to bend (rotate) when the angle of refraction a11 is given. Therefore, there is a need for a means to improve this point so that the setting can be easily changed and the state can last for a long time without changing afterwards.

Therefore, it is possible to add the configuration of the deployment control unit 184 to efficiently perform the above operation. The deployment control unit 184 includes a deployment control handle unit 184a, a deployment control male threaded portion 184b, a deployment control female screw threaded portion 184c, and a deployment control hinge coupling portion h30.

The deployment control handle 184a takes the form of a rod (pipe) erected vertically and is provided so that it can be held and turned by hand. A non-slip member may be applied to the surface so as not to slip when rotating by hand, or a polygonal shape may be formed to facilitate gripping.

The expansion control male screw head 184b is vertically connected (extended or coupled) to the top and bottom of the deployment control handle 184a, respectively, and the outer peripheral body of the expansion control male screw head 184b has a screw, a drill and Similarly, a spiral groove (screw thread, spiral groove) is formed, and the spiral groove on the upper side and the spiral groove on the lower side are formed in opposite directions to each other. A deployment control female threaded portion 184c is vertically disposed at the top and bottom of the deployment control handle 184a, respectively.

The expansion control female screw thread 184c takes the shape of an empty pipe inside, and each inner circumference of the upper and lower ends of the body of the expansion control female screw thread 184c has spiral grooves (threads) at the top and bottom of the expansion control male screw portion 184b. ), expansion control male screw threads 184b provided as spiral grooves (threads) having a shape corresponding to ) are formed, and the spiral grooves of the upper and lower expansion control male screw threads 184b and the expansion control female screw threads 184c are respectively corresponded. After doing so, turn the unfolding control handle 184a to fasten and assemble.

The expansion control hinge coupling part h30 is configured in each body of the spaced upper plate part 181 / spaced lower plate part 182 and is a spaced upper and lower plate side hinge coupling part h31 to be provided as a hinge shaft / hinge bearing, and each expansion control at the upper and lower ends It is composed of a female threaded portion (184c) and a deployment control female threaded side hinge coupling portion (h32) to serve as a hinge bearing/hinge shaft, and each spaced upper and lower plate side hinge coupling portion (h31) and a deployment control female threaded side hinge coupling The unit h32 is coupled to be able to bend (rotate) to form the deployment control hinge coupling unit h30 on the upper and lower sides of the deployment control unit 184, respectively.

In FIG. 12, when the deployment control handle 184a is rotated by hand in forward and reverse directions (s11, s12), the deployment control male screw mount 184b rotates as one body, and the upper and lower deployment control male screw mounts 184b respectively The expansion and contraction (a22 and a23) (extension or contraction) action is performed in which the length of the expansion control unit 184 is increased or decreased up and down by moving each of the expansion control female screw threads 184c at the top and bottom, which are screwed together, respectively.

Accordingly, the spaced upper plate part 181 and the spaced lower plate part 182 hinged to the expansion control female screw thread part 184c through the expansion control hinge coupling part h30 are pushed up and down, respectively, to cause a deployment action (open or close Therefore, as a result, the refraction angle a11 increases or decreases, so that the fluid distance a21 becomes farther away according to the increased refraction angle a12, or conversely, the fluid distance a21 can be set to become closer according to the decreased refraction angle a12. .

110: rear case
114: indoor air inlet
115: outdoor air outlet
140: total heat exchanger
150: front case
160: combination jaw

Claims (1)

It consists of a front case 150, a rear case 110, and a blowing fan 130 configured therebetween.
An indoor air outlet 154 is formed in the upper part of the front case 150, and an outdoor air inlet 155 is formed in the lower part,
An outdoor air outlet 115 is formed on the upper part of the rear case 110, and an indoor air inlet 114 is formed on the lower part,
A heat exchange ventilator comprising a total heat exchanger (140) comprising a plurality of heat transfer plates (141) between an outdoor air inlet (155) and an outdoor air outlet (115).