JP2019158321A - Ventilation device - Google Patents

Abstract

To provide a ventilation device capable of allowing a porous filter to uniformly discharge heat and avoiding cracking of the porous filter and further breaking of the porous filter.SOLUTION: A ventilation device includes: a tube housing; a porous filter which is installed in the tube housing; an air flow uniformizing member which is installed in the tube housing, and has a core part and a plurality of guide pieces, the guide pieces being provided peripherally at an outer circumference of the core part and a root end of each of guide pieces being connected to the core part; and a fan which is installed in the tube housing, the air flow uniformizing member being located between the fan and the porous filter.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a ventilator, and more particularly to a ventilator that achieves a circulation ventilation function.

  A conventional ventilator has a case, a porous filter, and a fan. The case is provided with air flow inlets and outlets at different end faces, and the porous filter is a filter layer that is installed in the case and made of ceramic pieces, and filters or adsorbs particulate matter contained in the air. The fan is rotatably installed in the case and is located in the vicinity of the porous filter. As a result, when the fan rotates, the airflow is taken in from the airflow intake port, and the particulate matter contained in the airflow is filtered or adsorbed by the porous filter, and then discharged from the exhaust port. I will provide a.

  The fan has a hub and a plurality of blades. When the fan rotates, the air volume at the end of the blade is larger than the air volume at the hub and the difference in the air volume is large, so the temperature at the location facing the blade end in the porous filter is the temperature at the location facing the hub. It is lower and it is difficult for the porous filter to exhaust heat uniformly due to the difference in the air volume of the fan. In addition, since this porous filter is made of a ceramic material that is a brittle material, if the exhaust heat is not uniform over a long period of time, the porous filter is likely to crack, and the porous filter may break. As a result, the life of the ventilator is seriously affected, and repairing parts and replacing the entire ventilator are further burdened on the user. In view of the above, it was necessary to improve the conventional ventilation device.

Chinese public notice No. 205474312U

  An object of the present invention is to provide a ventilator that can exhaust heat uniformly from a porous filter and can prevent the porous filter from cracking and further cracking the porous filter.

  Terms indicating the direction mentioned throughout the specification of the present invention, for example, “front”, “back”, “left”, “right”, “top (top)”, “bottom (bottom)”, “inside”, “Outside”, “side” and the like mainly indicate directions on the accompanying drawings, and assist the explanation and understanding of each embodiment of the present invention, and the present invention is limited to these directions. Is not to be done.

  A ventilator according to the present invention comprises a tube housing, a porous filter installed in the tube housing, an air flow equalizing member installed in the tube housing, and a fan installed in the tube housing. Including. The air flow equalizing member has a core part and a plurality of guide pieces, the guide pieces are provided around the outer periphery of the core part, the root ends of the guide pieces are connected to the core part, and the fan It is located between the porous filters.

  Thereby, since the airflow equalizing member is located between the fan and the porous filter, the ventilation device of the present invention can guide the airflow from the peripheral edge of the guide piece to the core part, The difference in the air volume at the periphery and the core of the guide piece can be prevented from becoming too large, and furthermore, heat can be discharged uniformly at every location of the porous filter. Thereby, it is hard to occur that a porous filter cracks or a porous filter cracks, and the lifetime of a porous filter can be extended. Therefore, it has the effect of reducing the cost for replacement and repair of the ventilation device, reducing the burden on the user, and further improving the convenience of use.

  Further, the air flow equalizing member may have a ring portion. The ring portion is connected to the tail end of each guide piece, and both ends in the axial direction of the ring portion define a first ventilation port and a second ventilation port, respectively. Each of the guide pieces has a blade edge farthest from the porous filter, and an axial distance from the blade edge to the first ventilation port gradually increases from the root end to the tail end. Thereby, the blade edge of each guide piece inclines and it has the effect of increasing the air volume in the periphery of a guide piece.

  Moreover, it can also have a 2nd space | interval between the 2nd ventilation hole of the said ring part, and the said porous filter. Thereby, it has the effect of improving the air flow uniformity effect.

  The second interval is preferably 0.1 to 2 times the axial height of the ring portion. Thereby, it has the better air flow equalization effect.

  The fan may have a base connected to the pipe housing and an impeller provided rotatably on the base. The impeller has a hub and a plurality of blades provided around the outer periphery of the hub, the core portion of the air flow equalizing member is opposed to the hub in the axial direction, and the radius of the core portion The distribution range in the direction does not become larger than the distribution range in the radial direction of the hub. Thereby, an air flow equalization member has the effect of disperse | distributing an air flow uniformly and improving the air flow equalization effect.

  The air flow equalizing member may have a ring portion and a coupling seat. The ring portion is installed between each guide piece and the inner wall of the coupling seat, and is connected to the tail end of each guide piece. The outer wall of the coupling seat is connected to the pipe housing. This has the effect of facilitating the assembly of the air flow uniformizing member and the tube housing.

  A first engagement portion is provided on an inner wall of the first end of the coupling seat, the base portion of the fan has a second engagement portion, and the second engagement portion is a first engagement portion of the coupling seat. Preferably it is engaged and coupled to the part. This has the effect of strengthening the coupling between the airflow uniformizing member and the fan.

  Further, a plurality of tightening portions may be provided on the inner wall of the second end of the coupling seat, and each of the tightening portions may be coupled to the outer peripheral surface of the porous filter. This has the effect of facilitating the assembly of the coupling seat and the porous filter and improving the assembly convenience.

  Each of the tightening portions may have a fixed end and an open end. The fixed end is fixed to the inner wall of the coupling seat, and the tightening portion is inclined from the fixed end toward the open end without connecting the open end to the inner wall of the coupling seat. Thereby, it has an effect which restrict | limits the coupling | bonding position of a coupling seat and a porous filter.

  In addition, each of the tightening portions has a thickness, and the thickness of the portion close to the fixed end in the tightening portion may be thicker than the thickness of the portion close to the open end. Thereby, the fixed end has an effect of being firmly coupled to the coupling seat.

  Moreover, you may provide the latching | locking part located in the said open end in the said coupling seat. Thereby, it has the effect of improving the bond stability between the bond seat and the porous filter.

  The ventilator may further include a fixed seat. An outer wall of the fixed seat is coupled to the pipe housing, and a fixed portion is provided on the inner wall of the fixed seat. The fixing portion is coupled to one end of the outer peripheral surface of the porous filter, and the tightening portion of the coupling seat is coupled to the other end of the outer peripheral surface of the porous filter. Thereby, the fixed seat can be used to lock the porous filter, and has an effect of avoiding the porous filter from coming off from the tube housing.

  In the air flow equalizing member, the first end of the coupling seat may include at least one guide rail, and the base of the fan may include at least one guide groove. The at least one guide rail is coupled in alignment with the at least one guide groove. Thereby, it has the effect of making it easy to match | combine and match | combine an airflow equalization member and a fan.

  Further, the guide piece can be formed in a curved shape. Thereby, it has the effect which guide | induces airflow further from the periphery of a guide piece to a core part.

  In addition, a first interval may be provided between the core portion and the porous filter. Thereby, it has the effect of improving the air flow uniformity effect.

  Further, it is desirable that the first interval is 0.25 times or more the outer diameter of the core portion. Thereby, it has the better air flow equalization effect.

The disassembled perspective view of the Example of this invention. The local enlarged view of the airflow equalization member of this invention. Side surface sectional drawing of the airflow equalization member of this invention. Sectional drawing of the Example of this invention.

  Embodiments of the present invention will be described below with reference to the drawings.

  As shown in FIG. 1, the ventilator according to a preferred embodiment of the present invention can switch between a clockwise operation and a counterclockwise operation in a predetermined time, thereby achieving an airflow exchange function. The ventilation device includes a tube housing 1, a porous filter 2, an air flow uniformizing member 3 and a fan 4, and the porous filter 2, the air flow uniformizing member 3 and the fan 4 are installed inside the tube housing 1.

  The pipe housing 1 may be a pipe having any shape. In this embodiment, the pipe housing 1 is a round pipe, but may be a square pipe or other pipes, and is not limited here. The tube housing 1 is based on the premise that a hollow tube having a basic ventilation function is selected, and the design of the internal structure and appearance of the tube housing 1 is not limited.

  As shown in FIGS. 1 and 4, the porous filter 2 is installed in the tube housing 1. The porous filter 2 may be designed to have an appropriate outer shape such as a quadrangle or a circle. In this embodiment, the porous filter 2 is a circle suitable for the shape of the tube housing 1. The porous filter 2 is preferably made of a ceramic material, and can filter or adsorb particulate matter contained in the air to effectively purify the air. The end face of the porous filter 2 that aligns with the airflow uniformizing member 3 has a central portion 21 and an outer peripheral portion 22 located on the outer periphery of the central portion 21.

  The air flow uniformizing member 3 is installed in the tube housing 1 and is located between the fan 4 and the porous filter 2, and the air flow uniformizing member 3 has a core portion 31 and a plurality of guide pieces 32. The core portion 31 is preferably aligned with the central portion 21 of the porous filter 2, the guide piece 32 is provided around the outer periphery of the core portion 31, and the root end 32 a of each guide piece 32 is connected to the core portion 31. Moreover, it is preferable that each guide piece 32 is aligned with the outer peripheral portion 22 of the porous filter 2.

  Furthermore, a first gap G <b> 1 is provided between the core portion 31 and the porous filter 2. The first gap G1 is preferably not less than 0.25 times the outer diameter R of the core portion 31, and thereby has a better air flow uniforming effect. Moreover, it is preferable that each guide piece 32 exhibits curve shape, and thereby, each guide piece 32 inclines to the core part 31 of the airflow equalization member 3, and the effect which guides an airflow to the core part 31 from the periphery of the guide piece 32 Have

  As shown in FIGS. 2, 3, and 4, the tail end 32 b of each guide piece 32 is directly coupled to the pipe housing 1 or directly coupled to the coupling seat 34 of the air flow equalizing member 3. In the present embodiment, the airflow equalizing member 3 further has an annular portion 33, and the annular portion 33 is used to connect the tail end 32 b of each guide piece 32. More specifically, both ends of the ring portion 33 in the axial direction may be the first ventilation port 33a and the second ventilation port 33b, respectively. Each guide piece 32 has a blade edge 321 farthest from the porous filter 2, and the axial distance from each blade edge 321 to the first vent 33a gradually increases from the root end 32a to the tail end 32b. In this way, the blade edge 321 of each guide piece 32 is inclined, and the air volume at the periphery of the guide piece 32 is increased. Between the 2nd ventilation port 33b of the ring part 33 and the porous filter 2, it has the 2nd space | interval G2, and the 2nd space | interval G2 is 0.1-2 of the height H of the axial direction of a ring part. Thus, the air flow uniformizing member 3 has a better air flow uniforming effect.

  The air flow equalizing member 3 further has a coupling seat 34. The ring portion 33 is installed between each guide piece 32 and the inner wall of the coupling seat 34, the ring portion 33 is connected to the tail end 32 b of each guide piece 32, and the outer wall of the coupling seat 34 is connected to the tube housing 1. The Thereby, the assembly of the air flow equalizing member 3 and the pipe housing 1 is facilitated, and the assembly convenience is improved. A first engagement portion 341 is preferably provided on the inner wall of the first end 34 a of the coupling seat 34. The base portion 41 of the fan 4 preferably has a second engagement portion 411, and the second engagement portion 411 is engaged and coupled to the first engagement portion 341 of the coupling seat 34, whereby the air flow equalizing member 3 and It has the effect of strengthening the coupling with the fan 4.

  On the other hand, a plurality of tightening portions 342 are provided on the inner wall of the second end 34 b of the coupling seat 34, and each tightening portion 342 is coupled to the outer peripheral surface of the porous filter 2, thereby the coupling seat 34 and the porous filter 2. Assembling is easy, and it has the effect of improving assembly convenience. In this embodiment, each tightening portion 342 has a sheet shape, and each sheet-like tightening portion 342 has a fixed end 342a and an open end 342b. The fixed end 342a is fixed to the inner wall of the coupling seat 34, and the open end 342b is not connected to the inner wall of the coupling seat 34 so that the tightening portion 342 is inclined from the fixed end 342a toward the open end 342b. Since the open end 342b has elasticity to lock the porous filter 2, it has an effect of restricting the coupling position between the coupling seat 34 and the porous filter 2.

  It should be noted that each of the sheet-like tightening portions 342 has a thickness, and in the tightening portion 342, the thickness near the fixed end 342a is preferably thicker than the thickness near the open end 342b (see FIG. 3). Show). As a result, the fixed end 342 a has an effect of being firmly coupled to the coupling seat 34. The coupling seat 34 may be provided with a locking portion 342c positioned at the open end 342b. Thereby, since the latching | locking part 342c can fix the porous filter 2 more firmly, it has the effect of improving the coupling stability of the coupling seat 34 and the porous filter 2.

  Further, the air flow equalizing member 3 has a guide rail 35, and the guide rail 35 is preferably installed at the first end 34 a of the coupling seat 34.

  As shown in FIGS. 1 and 4, the fan 4 is provided in the tube housing 1 so that the airflow uniformizing member 3 is located between the fan 4 and the porous filter 2. More specifically, the fan 4 has a base 41 connected to the pipe housing 1 and an impeller 42 that is rotatably provided on the base 41. The impeller 42 includes a hub 421 and a plurality of blades 422 provided around the outer periphery of the hub 421. The core portion 31 of the air flow equalizing member 3 is preferably opposed to the hub 421 in the axial direction, and the distribution range in the radial direction of the core portion 31 is preferably not larger than the distribution range in the radial direction of the hub 421. Thereby, the air flow equalizing member 3 has an effect of uniformly dispersing the air flow and improving the air flow uniforming effect.

  Further, the base 41 of the fan 4 has at least one guide groove 43, and the guide groove 43 is coupled to the at least one guide rail 35 of the air flow equalizing member 3 in alignment. Thereby, it has the effect which makes it easy to match | combine and couple | bond the airflow equalization member 3 and the fan 4.

  The ventilator of the present invention preferably further includes a fixed seat 5. An outer wall of the fixed seat 5 is coupled to the pipe housing 1, and a fixed portion 51 is provided on the inner wall of the fixed seat 5. The fixing portion 51 is coupled to one end of the outer peripheral surface of the porous filter 2, and the tightening portion 342 of the coupling seat 34 is coupled to the other end of the outer peripheral surface of the porous filter 2. Thereby, the fixed seat 5 is used to lock the porous filter 2, and has an effect of preventing the porous filter 2 from being detached from the tube housing 1.

  As shown in FIG. 4, due to the above structure, when the ventilator is used, the fan 4 rotates to generate an air current. The air flow equalizing member 3 is positioned between the fan 4 and the porous filter 2, and the axial distance from the blade edge 321 of each guide piece 32 to the first ventilation port 33a gradually increases from the root end 32a to the tail end 32b. It is preferable to increase, and thereby the air volume at the periphery of the guide piece 32 is increased, and the guide piece 32 exhibits a curved shape, whereby the airflow is guided from the periphery of the guide piece 32 to the core portion 31. With such a configuration, the air volume at the periphery of the guide piece 32 and the core portion 31 is made uniform, and the difference between the air volume at the location near the central portion 21 of the porous filter 2 and the air volume at the location near the outer peripheral portion 22 becomes too large. By avoiding this, heat can be uniformly discharged at the central portion 21 and the outer peripheral portion 22. Thereby, it is hard to occur that the porous filter 2 cracks or the porous filter is cracked, and the life of the porous filter 2 can be extended.

  As described above, since the air flow equalizing member is positioned between the fan and the porous filter, the ventilation device of the present invention can guide each air flow from the peripheral edge of the guide piece to the core portion, The difference in the air volume at the peripheral edge and the core of the guide piece is prevented from becoming too large, and furthermore, heat can be uniformly exhausted at every location of the porous filter. Thereby, it is hard to occur that a porous filter cracks or a porous filter cracks, and the lifetime of a porous filter can be extended. Therefore, it has the effect of reducing the cost for replacement and repair of the ventilation device, reducing the burden on the user, and further improving the convenience of use.

  The present invention may be implemented in other ways without departing from the spirit and essential characteristics thereof. Accordingly, the preferred embodiments described herein are exemplary and are not intended as limitations on the scope of the invention.

DESCRIPTION OF SYMBOLS 1 Tube | casing housing | casing 2 Porous filter 21 Center part 22 Outer peripheral part 3 Airflow equalization member 31 Core part 32 Guide piece 32a Root end 32b Tail end 321 Blade edge 33 Ring part 33a First ventilation port 33b Second ventilation hole 34 Coupling seat 34a First end 34b Second end 341 First engagement portion 342 Fastening portion 342a Fixed end 342b Open end 342c Locking portion 35 Guide rail 4 Fan 41 Base portion 411 Second engagement portion 42 Impeller 421 Hub 422 Blade 43 Guide groove 5 fixed seat 51 fixed part G1 first interval G2 second interval H height in the axial direction R outer diameter

As shown in FIGS. 2, 3, and 4, the tail end 32 b of each guide piece 32 is directly coupled to the pipe housing 1 or directly coupled to the coupling seat 34 of the air flow equalizing member 3. In the present embodiment, the airflow equalizing member 3 further has an annular portion 33, and the annular portion 33 is used to connect the tail end 32 b of each guide piece 32. More specifically, both ends of the ring portion 33 in the axial direction may be the first ventilation port 33a and the second ventilation port 33b, respectively. Each guide piece 32 has a blade edge 321 farthest from the porous filter 2, and the axial distance from each blade edge 321 to the first ventilation port 33a gradually decreases from the root end 32a to the tail end 32b. In this way, the blade edge 321 of each guide piece 32 is inclined, and the air volume at the periphery of the guide piece 32 is increased. Between the 2nd ventilation port 33b of the ring part 33 and the porous filter 2, it has the 2nd space | interval G2, and the 2nd space | interval G2 is 0.1-2 of the height H of the axial direction of a ring part. Thus, the air flow uniformizing member 3 has a better air flow uniforming effect.

Claims (16)

A tube housing;
A porous filter installed in the tube housing;
Uniform air flow installed in the tube housing, having a core part and a plurality of guide pieces, the guide pieces being provided around the outer periphery of the core part, and the root ends of the guide pieces being connected to the core part A chemical member;
A ventilator including a fan installed in the tube housing, wherein the airflow uniformizing member is located between the fan and the porous filter.   The air flow equalizing member has a ring portion, the ring portion is connected to the tail end of each guide piece, and both ends in the axial direction of the ring portion are a first ventilation port and a second ventilation port, respectively. The guide piece has a blade edge farthest from the porous filter, and an axial distance from the blade edge to the first ventilation port gradually increases from the root end to the tail end. The ventilation apparatus according to claim 1.   The ventilation apparatus according to claim 2, wherein a second interval is provided between the second ventilation port of the ring portion and the porous filter.   The ventilation apparatus according to claim 3, wherein the second interval is 0.1 to 2 times the axial height of the ring portion.   The fan includes a base connected to the tube housing, and an impeller rotatably provided on the base, and the impeller includes a hub and a plurality of blades provided around the outer periphery of the hub. And the core part of the air flow equalizing member faces the hub in the axial direction, and the distribution range in the radial direction of the core part is not larger than the distribution range in the radial direction of the hub. The ventilation apparatus according to claim 1.   The air flow equalizing member has a ring portion and a coupling seat, the ring portion is installed between each guide piece and the inner wall of the coupling seat, and the ring portion is connected to the tail end of each guide piece. The ventilator according to claim 5, wherein an outer wall of the coupling seat is connected to the pipe housing.   A first engaging portion is provided on an inner wall of the first end of the coupling seat, a base portion of the fan has a second engaging portion, and the second engaging portion is a first engaging portion of the coupling seat. The ventilator of claim 6, wherein the ventilator is engaged and coupled.   The ventilation apparatus according to claim 6, wherein a plurality of tightening portions are provided on an inner wall of the second end of the coupling seat, and each of the tightening portions is coupled to an outer peripheral surface of the porous filter.   Each of the tightening portions has a fixed end and an open end. The fixed end is fixed to the inner wall of the coupling seat, and the tightening portion is fixed to the inner wall of the coupling seat without the open end being connected to the inner wall of the coupling seat. The ventilation device according to claim 8, wherein the ventilation device is inclined from an end toward the open end.   The ventilation device according to claim 9, wherein each of the tightening portions has a thickness, and the thickness of the portion close to the fixed end in the tightening portion is thicker than the thickness of the portion close to the open end.   The ventilation device according to claim 9, wherein the coupling seat is provided with a locking portion located at the open end.   The ventilation device further includes a fixed seat, an outer wall of the fixed seat is coupled to the pipe housing, a fixed portion is provided on an inner wall of the fixed seat, and the fixed portion is one end of an outer peripheral surface of the porous filter. The ventilator according to claim 8, wherein the tightening portion of the coupling seat is coupled to the other end of the outer peripheral surface of the porous filter.   In the air flow equalizing member, the first end of the coupling seat has at least one guide rail, the base of the fan has at least one guide groove, and the at least one guide rail is the at least one guide groove. The ventilation apparatus according to claim 6, wherein the ventilation apparatus is coupled in alignment with the ventilation apparatus.   The ventilation device according to claim 1, wherein the guide piece has a curved shape.   The ventilation apparatus according to claim 1, wherein a first interval is provided between the core portion and the porous filter. The ventilation device according to claim 15, wherein the first interval is 0.25 times or more the outer diameter of the core portion.

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