TWM519680U - Ventilation fan for heating - Google Patents

Description

Heating ventilating fan

This creation is about a heating ventilator.

Window-type, ceiling-mounted or wall-mounted heating ventilating fans on the market, generally comprising a frame, a fan blade, a motor, a snail shell covering the blade and the motor, a circuit board box with a circuit board, and a wire Connected junction box.

When the heating ventilating fan is used in a high-temperature and high-humidity environment, and the circuit board box or the junction box is installed inside the frame, the water may enter the circuit board box or the junction box after entering the frame, in addition, After the high-temperature and high-humidity steam enters the frame, it is also possible to enter the circuit board box or the junction box, and condense on the circuit board and the live parts to form dew condensation water to contact and damage the circuit board and the live parts.

The purpose of this creation is to provide a heating ventilating fan that blocks water or steam contact and damages circuit boards and live parts, improving product safety.

To achieve the above object, the present invention provides a heating ventilating fan comprising: a frame, a fan blade, a motor, a snail shell covering the blade and the motor, a circuit board case mounted in the frame, the frame facing the bottom surface of the room An opening is provided, the circuit board case includes a cover and a box base, and an outer side of the outer circumference of the circuit board case integrally extends an exhaust groove communicating with an outer portion of the frame, and an outer circumference of the circuit board case constitutes the row An inner wall of the air groove, a wall extending from an outer circumference of the circuit board case opposite to an outer circumference of the circuit board case, forming an outer wall of the exhaust groove, and a first surface of the exhaust groove is provided a vent hole, a second vent hole is provided on a top surface of the frame at a position opposite to the first vent hole.

The advantage of this creation is that it prevents water or steam from coming into contact and damages live parts in the circuit board and junction box, improving product safety.

1A is a general schematic view of the present invention; FIG. 1B is a schematic view of another angle of the present invention; FIG. 2 is a schematic view of the circuit board box cover of the present invention when closed; FIG. 3 is when the circuit board box cover of the present invention is opened FIG. 4 is a schematic view of the circuit board of the present invention after the cover is removed.

As shown in FIG. 1 to FIG. 4, a heating ventilating fan 10 includes: a frame 11, a blade 13, a motor (not shown), a snail shell 12 covering the blade 13 and a motor, and is mounted in the frame 11. The circuit board case 100 is provided with an opening 14 facing the bottom surface of the room. The above frame 11, the blade 13, the motor, the snail shell 12 covering the blade 13 and the motor are all known techniques and will not be described in detail herein.

The circuit board case 100 includes a cover 110 and a case base 120. The outer side of the outer circumference of the circuit board case 100 integrally extends with an exhaust groove 130 communicating with the outside of the frame 11. The outer circumference of the circuit board case 100 constitutes the An inner wall 131 of the exhaust groove 130, a wall extending from an outer circumference of the circuit board case 100 opposite to an outer circumference of the circuit board case 100, constitutes an outer wall 132 of the exhaust groove 130, in the exhaust groove The top surface 134 of the longitudinal direction of the 130 is provided with a first exhaust hole 133, and a second exhaust hole 112 is provided at a position on the top surface 111 of the frame 11 opposite to the first exhaust hole 133.

The top surface 111 of the frame 11 refers to the surface opposite to the bottom surface opening 14 of the frame 11. The top surface 101 of the circuit board case 100 refers to the surface opposite to the top surface 111 of the frame 11, and the bottom surface 102 of the circuit board case 100 refers to the frame 11 The side surface 103 of the circuit board case 100 refers to the left and right sides of the circuit board case 100 which are sandwiched between the top surface 101 and the bottom surface 102 of the circuit board case 100 and which are connected to the case base 120.

Due to manufacturing tolerances, after the cover 110 of the circuit board case 100 is closed with the case base 120, the cover 110 and the case base 120 cannot be completely fitted together, and there is a connection gap (about 0.2-0.3 mm).

The outer side of the outer periphery of the circuit board case 100 (including the cover 110 of the circuit board case 100 and the case base 120) is integrally provided with an exhaust groove 130. When the heating ventilation fan 10 is installed on the ceiling of the bathroom, the heating ventilation fan 10 and the ceiling level are placed at Between the roof and the ceiling, the opening 14 of the bottom surface of the frame 11 is located below, facing the room, and the top surface 111 of the frame 11 is located above. The steam in the bathroom enters the frame 11 from the opening 14, for example, and rises to the circuit board box 100, contacts the outer wall 132 of the exhaust groove 130 and is blocked by the outer wall 132 of the exhaust groove 130 so as not to enter the circuit board case 100. And when a small portion of the steam flows through the gap of the outer wall 132 of the exhaust groove 130 (between the cover 110 of the circuit board case 100 and the case base 120) into the exhaust groove 130, the steam rises and then faces the row. The first exhaust hole 133 of the top surface 134 of the air groove 130 rises.

Since the second exhaust hole 112 is disposed on the top surface 111 of the frame 11 at a position opposite to the first exhaust hole 133, the exhaust groove 130 is communicated with the outside of the frame 11, so that the steam in the exhaust groove 130 passes through the first The exhaust hole 133 continues to flow upward to the second exhaust hole 112 to be discharged to the outside of the frame 11.

When the heating ventilating fan 10 is installed on a wall or a window, the heating ventilating fan 10 is longitudinally placed on the opening of the wall or the window, the bottom opening 14 of the frame 11 is located on the indoor side, and the top surface 111 of the frame 11 is located at the outdoor side through the opening of the wall or the window. . The steam in the bathroom enters the frame 11 and contacts the outer wall 132 of the exhaust groove 130 and is blocked by the outer wall 132 of the exhaust groove 130 so as not to enter the circuit board case 100. When a small portion of the steam flows through the gap of the outer wall 132 of the exhaust groove 130 (between the cover 110 of the circuit board case 100 and the cartridge base 120) to the exhaust groove 130, the steam is wicked by the inner wall of the exhaust groove 130. 131 is blocked, and is pushed by the next steam to flow along the exhaust groove 130 to the first exhaust hole 133 because the top surface 111 of the frame 11 is provided with a second position opposite to the first exhaust hole 133. The exhaust hole 112 allows the exhaust groove 130 to communicate with the outside of the frame 11, so that the steam in the exhaust groove 130 flows to the first exhaust hole 133 and is discharged to the outside of the frame 11 through the second exhaust hole 112 on the frame 11.

Regardless of whether the heating ventilating fan 10 is mounted on the ceiling or on a window or a wall, when the water enters the frame 11, it contacts the outer wall 132 and the inner wall 131 of the venting groove 130 and is blocked by it, and cannot enter the circuit board case 100. This prevents water or steam from coming into contact and damages the board or live parts, improving product safety.

Moreover, since the exhaust groove 130 is integrally formed with the circuit board case 100, it is not necessary to separately mount the exhaust groove 130 when assembling the circuit board case 100, and the number of parts can be reduced, and the cost can be saved.

Further, the exhaust groove 130 extends from the bottom surface 102 of the circuit board case 100 and the outer circumference of the two side faces 103, and the top surface 101 of the circuit board case 100 is disposed close to the top surface 111 of the frame 11. Although there is a connection gap (such as about 0.2-0.3 mm) between the cover 110 and the case base 120, since the top surface 101 of the circuit board case 100 is placed close to the top surface 111 of the frame 11, steam and water are difficult to The top surface 111 of the circuit board case 100 enters the circuit board case 100. Therefore, only the bottom surface 102 and the side surface 103 where the cover 110 is in contact with the cassette base 120 are provided with the exhaust groove 130. After the steam enters the frame 11, even if a small portion passes through the cover 110 and the cassette base 120 of the circuit board case 100. The gap therebetween flows into the exhaust groove 130, and also flows through the first exhaust hole 133 along the exhaust groove 130 and is discharged to the outside of the frame 11 through the second exhaust hole 112 on the top surface 111 of the frame 11.

Fig. 5 is a side cross-sectional view showing the cover of the circuit board case of the present invention when the cover is closed. As shown in FIGS. 3 to 5, the inner wall 131 of the exhaust groove 130 of the circuit board case 100 is defined by the inner wall 131' of the exhaust groove 130 of the cartridge base 120 and the inner wall of the exhaust groove 130 of the cover 110. The inner wall 131' of the exhaust slot 130 of the box base 120 of the circuit board case 100 is provided with one or more ribs, and the venting groove 130 of the cover 110 of the circuit board case 100 The inner wall 131" is provided with one or more ribs.

The case where two ribs are provided with the case base 120 of the circuit board case 100 and the inner wall 131 of the vent groove 130 of the cover 110 will be described as an example. The inner wall 131' of the exhaust groove 130 of the cartridge base 120 of the circuit board case 100 is provided with a first outer rib 201 on the outer side and a third convex rib 203 on the inner side of the first rib 201, the circuit board box The inner wall 131" of the exhaust groove 130 of the cover 110 of 100 is provided with a second rib 202 on the outer side and a fourth rib 204 on the inner side of the second rib 202. The cover 110 of the circuit board case 100 In the closed state, the first rib 201 closely surrounds the outer circumference of the second rib 202 from the outer side of the circuit board case 100, and the second rib 202 is from the outer side of the circuit board case 100. The direction closely surrounds the outer circumference of the third rib 203, and the third rib 203 closely surrounds the outer circumference of the fourth rib 204 from the outer side of the circuit board case 100.

After the cover 110 of the circuit board case 100 is closed with the case base 120, the cover ribs 110 and the four ribs on the case base 120 (the first rib 201, the second rib 202, the third rib 203, and the fourth protrusion) The ribs 204) are closely enclosed to each other and together constitute the inner wall 131 of the venting groove 130. Even if water or steam passes through the gap of the outer wall 132 of the exhaust groove 130 (between the cover 110 of the circuit board case 100 and the case base 120), the first bead 201 is in close contact with the cover 110 and the second bead 202. And tightly surrounding the outer circumference of the second rib 202, so water or steam is blocked, it is difficult to penetrate between the first rib 201 and the cover 110, because the second rib 202 is in close contact with the box base 120 and the third rib 203 and tightly surrounding the outer periphery of the third rib 203, so water or steam is blocked, and it is difficult to penetrate between the second rib 202 and the box base 120 because the third rib 203 is in close contact with the cover 110 and the fourth convex The rib 204 closely surrounds the outer circumference of the fourth rib 204, so that water or steam is blocked, and it is difficult to penetrate between the third rib 203 and the lid 110.

The cover 110 and the box base 120 of the circuit board case 100 can be integrally formed, which can save the mold cost.

Fig. 6 is a schematic view showing the addition of a waterproof cover to the frame of the present invention. As shown in FIG. 6, when the heating ventilating fan 10 needs to be installed in a window opening or a wall opening, a second protruding from the top surface 111 of the frame 11 is disposed outside the second venting opening 112 to cover the second row. A waterproof cover 115 of the air hole 112, a gap 106 is left between the waterproof cover 115 and the second exhaust hole 112, and an opening 107 for discharging steam is disposed below the waterproof cover 115.

When the heating ventilating fan 10 is installed in a window opening or a wall opening, the top surface 111 of the frame 11 (i.e., the side opposite the bottom surface opening 14 of the frame 11) is located outdoors. An opening 107 for discharging steam is provided below the waterproof cover 115, which means that the opening 107 for discharging steam faces the ground direction after the heating ventilating fan 10 is installed in the window opening or the wall opening.

In order to prevent outdoor rainwater or the like from entering the exhaust groove 130 through the second exhaust hole 112, a waterproof cover 115 covering the second exhaust hole 112 is provided outside the second exhaust hole 112, because the waterproof cover 115 protrudes from the frame There is a gap 106 between the top surface 111 and the second exhaust hole 112 (for example, about 3-5 mm), and the bottom of the waterproof cover 115 is provided with an opening 107 for discharging steam, so that the steam can have space from the second row. The air vent 112 flows out and then flows to the lower opening of the waterproof cover 115, that is, the waterproof cover 115 does not block the discharge of the steam.

And the opening 107 for discharging steam is located below the waterproof cover 115, between the waterproof cover 115 and the top surface 111. After the heating ventilation fan 10 is installed in the window opening or the wall opening, the opening 107 faces the ground direction, thereby ensuring that the steam can pass. The opening 107 is discharged from the outside of the frame 11, and the rainwater is prevented from coming into contact with the waterproof cover 115, so that it is difficult to pour from the opening to the second exhaust hole 112.

Thus, the steam in the frame 11 is discharged while preventing rainwater or the like from the outside from entering the exhaust groove 130 through the second exhaust hole 112, thereby improving product safety. 7 is a schematic view showing a junction box mounting portion at the bottom surface of the circuit board case of the present invention; and FIG. 8 is a schematic view showing the mounting portion cover of the junction box mounting portion of the present invention being closed. As shown in FIG. 7 and FIG. 8, a junction box 300 is disposed at a bottom surface of the circuit board box 100. The junction box 300 includes a junction box cover 310 and a junction box base 320. The junction box 300 is provided with a third exhaust. The hole 330, the inside of the junction box 300 communicates with the exhaust groove 130 through the third exhaust hole 330.

The third venting hole 330 may be disposed on the junction box cover 310 or the junction box base 320. When a small portion of the steam passes through the gap between the junction box cover 310 and the junction box base 320 and enters the inside of the junction box 300, it can flow into the exhaust slot 130 through the third exhaust hole 330, and then along the row. The air groove 130 flows to the first exhaust hole 133 and is then discharged to the outside of the frame 11 through the second exhaust hole 112 on the frame 11. Thereby blocking the vapor contact and damaging the live parts in the junction box 300, thereby improving product safety.

And the third venting hole 330 can simultaneously serve as the outlet of the junction box 300. The electric wire passes through the outlet and then protrudes along the venting slot 130 and then passes through the wiring hole of the circuit board box 100 and the inside of the circuit board box 100. The circuit board 400 is connected. At this time, if the third exhaust hole 330 is disposed in the junction box base 320, since the electric wire passes through the outlet port of the junction box base 320, that is, the third exhaust hole 330, and then protrudes along the exhaust groove 130 and then passes through the circuit board. The wiring hole of the box 100 is connected to the circuit board 400, so that the opening and closing of the junction box cover 310 are not pulled to the electric wire, that is, the third exhaust hole 330 is disposed on the junction box base 320 to facilitate connection with the circuit board 400. Wiring between.

A junction box mounting portion 340 is integrally extended on the bottom surface 102 of the circuit board case 100, and the junction box cover 310 and the junction box base 320 are both mounted in the junction box mounting portion 340, and the junction box mounting portion 340 A mounting portion cover 341 covering the junction box mounting portion 340 is provided on the outer side.

Due to manufacturing tolerances, the junction box cover 310 and the junction box base 320 are not completely conformable after the junction box cover 310 is closed, and there is a connection gap (e.g., about 0.2-0.3 mm).

The junction box cover 310 and the junction box base 320 are both mounted in the junction box mounting portion 340, and the outer side of the junction box mounting portion 340 is further provided with a mounting portion cover 341, that is, the live parts in the junction box 300 have a junction box cover 310 and The two layers of the mounting cover 341 are tightly protected. The mounting portion cover 341 serves as a first layer of protection against which water or steam contacts the mounting portion cover 341 to prevent water or steam from entering the junction box mounting portion 340 even if a small portion of water or steam passes through the junction box mounting portion 340. The connection gap with the mounting portion cover 341 enters the inside of the junction box mounting portion 340, and the junction box cover 310 acts as a second layer of protection, continuing to block water or steam from coming into contact with the terminal portion. Thereby, water or steam is blocked from coming into contact with the live parts, further improving product safety.

Figure 9 is a schematic illustration of the circuit board and junction box of the present invention. As shown in FIGS. 7-9, the junction box mounting portion 340 is provided with a fourth exhaust hole 350, and the fourth exhaust hole 350 is in communication with the exhaust slot 130. When a small portion of the steam passes through the connection gap between the junction box mounting portion 340 and the mounting portion cover 341 and enters the inside of the junction box mounting portion 340, it may flow into the exhaust slot 130 through the fourth exhaust hole 350. Then, it flows through the first exhaust hole 133 along the exhaust groove 130 and then is discharged to the outside of the frame 11 through the second exhaust hole 112 on the frame 11. Thereby, the vapor contact is blocked and the live parts in the junction box 300 are damaged, further improving product safety.

The mounting portion cover 341 is provided with a drain hole 342 that communicates with the junction box mounting portion 340 and the inside of the frame 11. When water enters the junction box mounting portion 340, water flows out of the junction box mounting portion 340 through the drain hole 342. Thereby, water is accumulated in the junction box mounting portion 340, and the live parts in the junction box 300 are contacted and damaged, thereby further improving product safety.

When the heating ventilating fan is installed in the window opening or the wall opening, the upper and lower sides of the circuit board case 100 and the junction box 300 are shown in the direction of the arrow A in FIG. The inner wall 131 of the exhaust groove 130 is provided near the fourth exhaust hole 350 with a first water guiding portion 136 that is inclined toward the inner side of the cartridge base 120 of the circuit board case 300. When water flows into the upper exhaust groove 130, the water flows downward along the first water guiding portion 136 inclined downward toward the inner side of the cartridge base 120 and then flows through the fourth exhaust hole 350 into the junction box mounting portion 340. Then, it is discharged to the outside of the junction box mounting portion 340 through the drain hole 342 on the mounting portion cover 341.

When water flows into the lower exhaust groove 130, the water flows along the outer wall 132 of the exhaust groove 130 to the first exhaust hole 133 and is discharged to the outside of the exhaust groove 130. That is, the water in the exhaust groove 130 is guided to be discharged, water is prevented from being accumulated in the exhaust groove 130, and the live parts in the junction box 300 are contacted and damaged, thereby further improving product safety.

FIG. 10 is another perspective view of the circuit board box and the junction box of the present invention. As shown in FIG. 3, FIG. 8, and FIG. 10, the outer wall 132 of the exhaust slot 130 of the circuit board box 100 is exhausted by the box base 120. The outer wall 132' of the groove 130 and the outer wall 132' of the exhaust groove 130 of the cover 110. When the heating ventilating fan is mounted on the ceiling, the upper and lower sides of the circuit board case 100 and the junction box 300 are oriented in the direction of arrow B in FIG. The inner side of the outer wall 132' of the exhaust groove 130 of the cartridge base 120 disposed in the horizontal direction of the junction box 300 is obliquely disposed to form a second water guiding portion 137, and the second water guiding portion 137 is adjacent to the third exhaust hole portion 330. As the upper portion 1371, the portion away from the third exhaust hole 330 is the lower portion 1372. When water flows into the exhaust groove 130 on the left side, the gravity water flows to the lower row arranged in the horizontal direction of the junction box 300. The air groove 130 accumulates in the lower portion 1372 away from the third exhaust hole 330, and then oozes out to the row through the connection gap (about 0.2-0.3 mm) between the cover 110 of the circuit board case 100 and the case base 120. The air groove 130 is external and does not flow into the third exhaust hole 330.

When there is water flowing into the exhaust groove 130 on the right side, the water flows downward by gravity, flows through the fourth exhaust hole 350 into the junction box mounting portion 340, and is discharged through the drain hole 342 on the mounting portion cover 341. It is outside the junction box mounting portion 340. Thereby blocking the water contact and damaging the live parts in the junction box 300, further improving product safety.

10‧‧‧heating ventilation fan
11‧‧‧Frame
12‧‧‧Snail shell
13‧‧‧ fan leaves
100‧‧‧Circuit board box
101‧‧‧ top surface
102‧‧‧ bottom
103‧‧‧ side
106‧‧‧ gap
107‧‧‧ openings
110‧‧‧ lid
111‧‧‧ top surface
112‧‧‧Second vent
115‧‧‧Waterproof cover
120‧‧‧Box base
130‧‧‧Exhaust trough
131, 131', 131" ‧ ‧ inner wall
132, 132', 132" ‧ ‧ outer wall
133‧‧‧First vent
134‧‧‧ top surface
136‧‧‧First Water Guide
137‧‧‧Second Water Guide
1371‧‧‧High Department
1372‧‧‧low part
201‧‧‧First rib
202‧‧‧second rib
203‧‧‧ third rib
204‧‧‧4th rib
300‧‧‧ junction box
310‧‧‧ junction box cover
320‧‧‧ junction box base
330‧‧‧ third vent
340‧‧‧ junction box installation
341‧‧‧Installation cover
342‧‧‧Drainage hole
350‧‧‧fourth vent
400‧‧‧ circuit board

Figure 1A is a general schematic of the present creation. Figure 1B is a general schematic diagram of another aspect of the present creation. Fig. 2 is a schematic view showing the circuit board case cover of the present invention when it is closed. Fig. 3 is a schematic view showing the circuit board case cover of the present invention when it is opened. Figure 4 is a schematic view of the circuit board of the present invention after the cover is removed. Fig. 5 is a side cross-sectional view showing the cover of the circuit board case of the present invention when the cover is closed. Fig. 6 is a schematic view showing the addition of a waterproof cover to the present creation. Fig. 7 is a schematic view showing a junction box mounting portion at the bottom surface of the circuit board case of the present invention. Fig. 8 is a schematic view showing the mounting portion cover of the junction box mounting portion of the present invention when it is closed. Figure 9 is a schematic illustration of the circuit board and junction box of the present invention. Figure 10 is another perspective view of the circuit board and junction box of the present invention.

100‧‧‧Circuit board box

101‧‧‧ top surface

110‧‧‧ lid

120‧‧‧Box base

132‧‧‧ outer wall

133‧‧‧First vent

134‧‧‧ top surface

Claims (12)

A heating ventilating fan comprising a frame, a fan blade, a motor, a snail shell covering the blade and the motor, a circuit board box mounted in the frame, the frame facing the bottom surface of the room, an opening, the circuit board box The cover and the base of the case are characterized in that: an outer side of the outer circumference of the circuit board case integrally extends with an exhaust groove communicating with the outside of the frame, and an outer circumference of the circuit board case constitutes an inner wall of the exhaust groove a wall extending from an outer circumference of the circuit board case opposite to an outer circumference of the circuit board case, forming an outer wall of the exhaust groove, and a first exhaust hole is provided on a top surface of the exhaust groove A second exhaust hole is provided on a top surface of the frame opposite to the first exhaust hole. The heating ventilating fan of claim 1, wherein the venting groove extends from an outer circumference of a bottom surface and a side surface of the circuit board case, and a top surface of the circuit board case is in close contact with the top surface of the frame Settings. The heating ventilating fan of claim 1, wherein the inner wall of the venting groove of the box base of the circuit board box is provided with one or more ribs, and the row of the lid of the circuit board box The inner wall of the gas groove is provided with one or more ribs. The heating ventilating fan of claim 3, wherein the inner wall of the venting groove of the box base of the circuit board box is provided with a first rib and a third rib, and the cover of the circuit board box The inner wall of the venting groove is provided with a second rib and a fourth rib. When the lid of the circuit board box is in a closed state, the first rib surrounds the outer side of the circuit board box. An outer circumference of the second rib, the second rib surrounding an outer circumference of the third rib from an outer side of the circuit board case, the third rib surrounding the outer side of the circuit board case The outer circumference of the fourth rib. The heating ventilating fan of claim 1, wherein the heating ventilating fan is installed in a window opening or a wall opening, and an outer side of the second venting hole is disposed to protrude from a top surface of the frame to cover the a waterproof cover of the second exhaust hole, a gap is left between the waterproof cover and the second exhaust hole, and an opening for discharging steam is provided below the waterproof cover. The heating ventilating fan of claim 1, wherein the cover of the circuit board case and the base of the case are integrally formed. The heating ventilating fan of claim 1, wherein the bottom surface of the circuit board box is provided with a junction box, the junction box includes a junction box cover and a junction box base, and the junction box is provided with a third a vent hole through which the inside of the junction box communicates with the exhaust vent. The heating ventilating fan of claim 7, wherein a junction box mounting portion is integrally extended on a bottom surface of the circuit board box, and the junction box cover and the junction box base are installed in the junction box. In the inside, the outer side of the junction box mounting portion is provided with a mounting portion cover that covers the junction box mounting portion. The heating ventilation fan of claim 8, wherein the junction box mounting portion is provided with a fourth exhaust hole, and the fourth exhaust hole is in communication with the exhaust groove. The heating ventilating fan of claim 8, wherein the mounting portion cover is provided with a drainage hole. The heating ventilating fan of claim 9, wherein the heating ventilating fan is installed in a window opening or a wall opening, and an inner wall of the venting groove is disposed adjacent to the fourth venting opening a first water guiding portion that is inclined in the inner side of the circuit board case. The heating ventilating fan of claim 10, wherein the heating ventilating fan is mounted on the ceiling, and is disposed obliquely with the inner side of the outer wall of the exhaust vent provided in the horizontal direction of the junction box to form a second water guiding portion, the second The water guiding portion is a high portion near the third exhaust hole portion and a lower portion away from the third exhaust hole portion.