TWI591262B - Ventilator - Google Patents

Description

Ventilation fan

The present invention relates to a ventilating fan, and more particularly to a ventilating fan provided with a housing.

Referring to FIG. 1 , a conventional ventilating fan 9 includes a casing 91 and a casing 92. The casing 91 can be disposed on a partition D (for example, a ceiling). Fan 911. Thereby, the fan 911 can introduce an air flow from the air flow port 912 of the casing 91, so that the ventilation fan 9 can provide a ventilation and ventilation function. The housing 91 is provided with a first joint portion 913. The outer cover 92 is provided with a second joint portion 921 for engaging the first joint portion 913 of the housing 91. Thereby, the outer cover 92 can be detachably coupled to the housing 91.

The outer cover 92 can shield the airflow opening 912 of the housing 91 to maintain the appearance integrity of the ventilation fan 9, and the outer cover 92 can also be disposed by other components such as a lamp, a power module or a strainer. In order to prevent the outer cover 92 from closing the air flow opening 912 to affect the airflow, a distance must be maintained between the outer cover 92 and the housing 91. To this end, the outer cover 92 is provided with a partitioning member 922 that abuts the outer cover 92 and the housing 91 to separate the outer cover 92 from the housing 91, and the outer cover 92 and the housing 91. A vent 93 can be formed between the air vent 912 of the housing 91 to allow airflow to be introduced into the housing 91 via the vent 93 and the air vent 912.

However, the outer cover 92 has been provided with the second joint portion 921, and the outer cover 92 may also need to be combined with other components such as a lamp, a power module or a strainer. Therefore, the additional arrangement of the partition member 922 tends to increase the structure of the cover 92. The complexity causes an increase in the difficulty in manufacturing the ventilating fan 9.

Alternatively, please refer to FIG. 3 , which is another conventional ventilating fan 8 , which also includes a casing 81 and a cover 82 . The difference is that the ventilating fan 8 is additionally provided with a venting collar 83 , and the venting collar 83 is provided. A vent can be formed between the outer casing 82 and the outer casing 82 between the outer casing 82 and the outer casing 82. Although the ventilating fan 8 can separate the housing 81 and the outer cover 82 by the venting collar 83, it is not necessary to provide the partitioning member 92 in the outer cover 82. However, the venting collar 83 is a separate member, so the venting sleeve is disposed. The ring 83 will still cause the overall structure of the ventilating fan 8 to be complicated, thereby increasing the difficulty in manufacturing the ventilating fan 8.

In view of the above, there is a need to provide a further improved ventilating fan to solve the above problems of the conventional ventilating fans 8, 9 being "complex in structure" and "difficult to manufacture".

One object of the present invention is to provide a ventilating fan that is provided with an extension in a housing to form a vent between the housing and a housing.

Another object of the present invention is to provide a ventilating fan having an extension on a cover or frame of an outer cover to form a vent between the cover and the frame.

In order to achieve the foregoing object, the technical means used in the present invention include: The ventilating fan of the embodiment of the present invention comprises: a casing comprising a fan and a ring wall, the fan having an axial direction, and the fan includes a fan wheel and an air flow port, the air flow port communicating with the fan wheel The ring wall is disposed on a side of the fan having the air flow opening, the ring wall is provided with an extension portion away from the side of the fan; and a cover, the cover includes a cover plate, and the extension portion of the ring wall is along the above The axial direction extends toward the cover plate, and the extending portion abuts the cover plate; wherein a gap is formed between the ring wall and the cover plate, and the vent port communicates with the airflow opening.

Wherein, the extending portion has a shoulder away from one side of the ring wall, and the shoulder abuts the cover plate. Thereby, the extension portion can separate the annular wall of the casing from the cover plate, so that the venting opening can be formed between the annular wall and the cover plate.

Wherein the extension portion is provided with a fixing hole, the fixing hole penetrating the extension portion Both sides in the above axial direction. Thereby, a locking element can pass through the fixing hole of the extension portion so that the extension portion can be coupled to a spacer.

The ventilating fan is mounted on a spacer, the ring wall passes through a through hole of the spacer, and a locking component passes through the fixing hole and is locked to the surface of the spacer facing the cover. Thereby, the housing can be coupled to the spacer via the extension.

Wherein, the ring wall is provided with one side of the extension portion connected to a ring flange, and the ring flange extends radially outward from the ring wall in the axial direction opposite to the axial direction. And the ventilating fan is mounted on a spacer, the ring wall passes through one of the through holes of the spacer, and the extension is coupled to the surface of the spacer facing the cover, the ring flange is in the axial direction Opposite the through hole. Thereby, if the diameter of the through hole is larger than the outer diameter of the annular wall of the casing, the ring flange can effectively shield the gap between the ring wall and the spacer to prevent the user from seeing the through hole or even the fan, The effect of maintaining the appearance integrity of the ventilating fan.

A ventilating fan according to still another embodiment of the present invention includes: a casing having a fan inside, the fan having an axial direction; and a casing including a cover plate and a frame, the frame being coupled to the casing The casing has a through groove extending through the two side surfaces of the frame, and the frame body is provided with an extending portion extending toward the cover plate along the axial direction, the cover plate is provided a joint portion is coupled to the extension portion; wherein a vent is formed between the frame body and the cover plate, the vent opening communicates with the through groove, and the extension portion has a shoulder away from one side of the frame body The shoulder abuts the cover plate toward a surface of the frame.

The connecting portion is a through hole, and the extending portion is provided with a fixing hole, and a locking component passes through the joint portion and is locked to the fixing hole. Thereby, the cover plate and the frame body can be locked and coupled to each other via the extending portion and the joint portion.

The connecting portion is a through hole, and the extending portion is provided with a fastening member, and the fastening member passes through and is buckled and coupled to the joint portion. Thereby, the cover plate and the frame body can be coupled to each other via the extending portion and the joint portion.

The fan of the casing includes a fan wheel and an air flow port, the air flow port is connected to the fan wheel, and the casing comprises a ring wall. The ring wall is disposed on a side of the fan having the air flow port, and the frame body is combined The ring wall is away from one side of the fan. Thereby, the ring wall surrounds the air flow opening to provide a flow guiding effect, and the ring wall can respectively combine the frame body and a spacer.

There is further included a filter screen, and the filter screen is disposed in the through slot. Thereby, the filter screen can filter the airflow flowing through the through-groove, so that the ventilating fan of the embodiment of the invention can prevent dust from accumulating inside the fan, and has the effect of prolonging the service life of the ventilating fan.

The ventilating fan of each of the above embodiments, wherein the vent has a first height in the axial direction, and the extension has a second height in the axial direction, the second height being greater than or equal to the first height. Thereby, the extension portion uses all or part of the space between the cover plate and the frame as the vent.

The ventilating fan of each of the above embodiments, wherein the cover plate is combined with a luminaire. In this way, the ventilating fan can provide an illumination function in addition to the airflow exchange function.

The ventilating fan according to each of the above embodiments, wherein a sound amplifying device is further provided, and the sound amplifying device is coupled to the casing or the outer casing. Thereby, the sound amplification device can play sound waves according to an audio, and the audio can be music, so that the ventilation fan can simultaneously have a music playing function.

Wherein, the above-mentioned sound amplification device is provided with a wireless receiver, and the wireless receiver may be a device such as a Bluetooth receiving module, a Wi-Fi receiving module or an infrared receiving module, whereby the wireless receiver is available from the outside The audio is received so that the sound amplifying device can play sound waves according to the audio.

The sound amplification device plays sound waves according to an audio, and the audio is white noise or compensation sound for noise removal. Thereby, the ventilation fan can have a good mute effect at the same time.

With the above structure, the ventilating fan of each embodiment of the present invention does not need to additionally provide a partitioning member on the cover plate to form the venting opening, and does not need to additionally provide a venting collar, and has the effect of reducing the structural complexity of the ventilating fan. Furthermore, the housing may be coupled to the spacer via an extension disposed on the ring wall such that the ring wall does not need to be provided with other bonding structures for bonding the spacer; The extension portion disposed on the cover plate may be coupled to the frame body, and the extension portion disposed on the frame body may be coupled to the cover plate such that the cover plate or the frame body does not need to be provided with other bonding structures for the cover plate and the frame. The combination of the bodies has the effect of reducing the difficulty in manufacturing the ventilating fan.

〔this invention〕

1‧‧‧shell

11‧‧‧Fan

111‧‧‧fan wheel

112‧‧‧Airflow

12‧‧‧ Ring wall

121‧‧‧Extension

121a‧‧‧Shoulder

121b‧‧‧Fixed holes

122‧‧‧ first joint

123‧‧‧ ring flange

2‧‧‧ Cover

21‧‧‧ Cover

211‧‧‧ Second Joint Department

212‧‧‧Extension

212a‧‧‧ shoulder

212b‧‧‧Fixed holes

212c‧‧‧fasteners

213‧‧‧Combination Department

22‧‧‧ frame

221‧‧‧through slot

222‧‧‧Combination Department

223‧‧‧Extension

223a‧‧‧Shoulder

223b‧‧‧Fixed holes

23‧‧‧ vents

3‧‧‧Lighting

4‧‧‧ filter

5‧‧‧Amplifier

X‧‧‧ axial direction

S‧‧‧Locking components

D‧‧‧Isolation

D1‧‧‧through hole

H1‧‧‧ first height

H2‧‧‧second height

[study]

9‧‧‧Ventilator

91‧‧‧Shell

911‧‧‧fan

912‧‧‧ airflow

913‧‧‧ first joint

92‧‧‧ Cover

921‧‧‧Second junction

922‧‧‧Parts

93‧‧‧ vents

8‧‧‧Ventilator

81‧‧‧Shell

82‧‧‧ Cover

83‧‧‧ Breathable collar

Fig. 1 is an exploded view of a conventional ventilating fan.

Fig. 2 is a cross-sectional view showing the structure of an existing ventilating fan.

Figure 3: An exploded view of another existing ventilating fan.

Fig. 4 is a schematic exploded view showing the structure of the first embodiment of the present invention.

Fig. 5 is a cross-sectional view showing the structure of the first embodiment of the present invention.

Fig. 6 is a schematic exploded view showing the second embodiment of the present invention.

Figure 7 is a cross-sectional view showing the structure of a second embodiment of the present invention.

Fig. 8 is a schematic exploded view showing the structure of the cover plate of the embodiment of the present invention in a quadrangular shape.

Fig. 9 is a schematic exploded view showing the third embodiment of the present invention.

Fig. 10 is a structural exploded view showing the outer cover of the third embodiment of the present invention.

Figure 11 is a cross-sectional view showing the structure of a third embodiment of the present invention.

Fig. 12 is a partially enlarged cross-sectional view showing the casing and the outer cover of the third embodiment of the present invention.

Fig. 13 is a schematic exploded view showing the structure of a filter outer cover according to an embodiment of the present invention.

Fig. 14 is a partially enlarged cross-sectional view showing the outer cover and the casing of the present invention in the embodiment of the present invention.

Fig. 15 is a partially enlarged sectional exploded view showing the casing and the outer cover of the fourth embodiment of the present invention.

Figure 16 is a partially enlarged cross-sectional view showing the casing and the outer cover of the fourth embodiment of the present invention.

Figure 17 is a schematic exploded view showing the structure of a sound amplification device according to an embodiment of the present invention.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

Referring to FIGS. 4 and 5, the ventilating fan system according to the first embodiment of the present invention includes a casing 1 and a casing 2, and the casing 2 can be coupled to the casing 1.

The housing 1 includes a fan 11 and a ring wall 12, the fan 11 has an axial direction X, and the fan 11 includes a fan wheel 111 and an air flow port 112. The air flow port 112 communicates with the fan wheel 111. The wall 12 is disposed on the side of the fan 11 having the air flow port 112. The annular wall 12 surrounds the air flow opening 112 to provide a flow guiding effect. In this embodiment, the ring wall 12 is provided with an extending portion 121 away from one side of the fan 11.

The cover 2 includes a cover plate 21 extending from the extension wall 121 toward the cover plate 21 along the axial direction X, and the extension portion 121 abuts the cover plate 21.

In more detail, the extension portion 121 has a shoulder portion 121a away from the side of the ring wall 12, and the shoulder portion 121a abuts the cover plate 21. In addition, the extending portion 121 is provided with a fixing hole 121b penetrating both sides of the extending portion 121 in the axial direction X.

With the above structure, please refer to FIG. 5, when the ventilating fan of the first embodiment of the present invention is actually used, it can be mounted on a spacer D, which can be a ceiling, a wall or a system casing, etc. And the spacer D is provided with a through hole D1. The ring wall 12 can pass through the through hole D1 of the spacer D, and the extending portion 121 can be coupled to the surface of the spacer D facing the cover plate 21. In other words, the housing 1 can be coupled to the spacer D via the extension 121. The locking member S can pass through the fixing hole 121b of the extending portion 121 and be locked to the surface of the spacer D facing the cover plate 21, so that the extending portion 121 is coupled to the spacer D.

Accordingly, since the cover plate 21 abuts against the shoulder portion 121a, the extending portion 121 can partition the ring wall 12 of the casing 1 and the cover plate 21 of the outer cover 2 such that the ring wall 12 and the cover plate 21 A vent 23 can be formed between the vents 23 and the venting opening 112. therefore, The fan 11 can introduce an air flow through the vent 23 and the air flow port 112. The vent 23 has a first height H1 in the axial direction X, and the extension 121 has a second height H2 in the axial direction X. Since the vent 23 is separated by the extension 121 The ring wall 12 is formed with the cover plate 21, so the second height H2 may be greater than or equal to the first height H1. For example, in the embodiment, the second height H2 is equal to the first height H1. In other words, the space where the extension portion 121 separates the ring wall 12 from the cover plate 21 serves as the vent 23 .

Compared with the foregoing conventional ventilating fan 9, a partition 922 is additionally disposed on the outer cover 92 to separate the outer cover 92 from the casing 91; or an air venting ring 83 is additionally provided to separate the outer cover 82 and the casing from the prior ventilating fan 8; 81. The ventilating fan of the first embodiment of the present invention can directly separate the ring wall 12 and the cover plate 21 by using the extension portion 121 of the ring wall 12 to form the vent 23 between the ring wall 12 and the cover plate 21. Therefore, it is not necessary to provide a partition member on the cover plate 21, and it is not necessary to additionally provide a breathable collar.

It is to be noted that the ring wall 12 of the housing 1 can be provided with a first joint portion 122. The cover plate 21 of the outer cover 2 can be provided with a second joint portion 211 for combining the ring wall. The first joint portion 122 of 12. Thereby, the outer cover 2 can be detachably coupled to the casing 1. In this embodiment, the first joint portion 122 can be a through hole, and the second joint portion 211 can be a spring leg structure, so that the second joint portion 211 can be removably coupled to the first joint portion 122. However, the first joint portion 122 and the second joint portion 211 may be coupled to each other through other joint structures such as locking, screwing, or snapping, and the invention is not limited thereto.

In addition, the ventilating fan of the first embodiment may be additionally provided with a luminaire 3, and the luminaire 3 may be coupled to the cover plate 21. In this way, the ventilating fan can provide an illumination function in addition to the airflow exchange function.

Referring to Figures 6 and 7, a ventilating fan according to a second embodiment of the present invention is different from the foregoing first embodiment in that the ring wall 12 is provided with one side of the extending portion 121 connected to a ring flange 123. The ring flange 123 extends from the annular wall 12 in a radial direction relative to the axial direction X toward the extension Stretch. When the ventilating fan of the second embodiment is mounted on a spacer D, the ring flange 123 will be opposed to the through hole D1 of the spacer D in the axial direction X. Therefore, if the aperture of the through hole D1 is larger than the outer diameter of the annular wall 12 of the casing 1, the ring flange 123 can effectively shield the gap between the annular wall 12 and the spacer D to prevent the user from seeing the through hole. The hole D1 and even the fan 11 have an effect of maintaining the appearance integrity of the ventilating fan.

In the first and second embodiments, the cover 21 of the outer cover 2 is circular. However, as shown in FIG. 8, in some embodiments of the present invention, the cover 21 may also have a quadrangular shape. . In order to meet market demands, the cover plate 21 can also be formed in an elliptical shape, a star shape or other various geometric shapes.

Referring to Figures 9, 10 and 11, the ventilating fan of the third embodiment of the present invention also includes a housing 1 and a housing 2, which is different from the foregoing embodiments in that the housing 2 includes the cover 21 And a frame 22, the frame 22 can be coupled to the side wall 12 of the casing 1 away from one side of the fan 11. The frame body 22 has a through hole 221 extending through the two side surfaces of the frame body 22 , and the frame body 22 is provided with a joint portion 222 . The cover plate 21 is provided with an extending portion 212 extending along the axial direction X toward the frame 22, and the joint portion 222 is coupled to the extending portion 212.

The side of the extension portion 212 away from the cover 21 also has a shoulder portion 212a that abuts the frame 22 toward a surface of the cover plate 21. In addition, in the embodiment, the joint portion 222 of the frame body 22 can be a perforation. The extension portion 212 can be provided with a fixing hole 212b facing the joint portion 222 of the frame body 22.

With the above structure, please refer to FIG. 12 together. When the ventilating fan of the third embodiment of the present invention is actually used, it can also be mounted on a spacer D. The housing 1 can be coupled to the spacer D via the annular wall 12, and the outer cover 2 can be removably coupled to the annular wall 12 via the frame 22. The locking component S can pass through the joint portion 222 of the frame 22 and be locked to the fixing hole 212b of the extending portion 212, so that the extending portion 212 is coupled to the joint portion. 222.

Accordingly, since the frame 22 abuts against the shoulder portion 212a, the extending portion 212 can separate the cover 21 and the frame 22 of the outer cover 2, so that a space can be formed between the frame 22 and the cover plate 21. The vent 23 communicates with the through slot 221, and the through slot 221 communicates with the airflow opening 112 of the fan 11. Therefore, the fan 11 can introduce an air flow through the vent 23, the through groove 221, and the air flow port 112. The vent 23 also has a first height H1 in the axial direction X. The extension 212 has a second height H2 in the axial direction X. In this embodiment, the second height H2 is greater than the first A height H1, in other words, a portion of the space in which the extension portion 212 separates the cover 21 from the frame 22 serves as the vent 23.

Similarly, a gas permeable collar 83 is additionally provided or a partition 922 is disposed on the outer cover 92 to separate the outer casing 82, 92 from the casing 81, 91, compared to the foregoing prior ventilating fans 8, 9, a third embodiment of the present invention The ventilating fan can directly separate the cover plate 21 and the frame 22 by using the extending portion 212 of the cover plate 21 to form the vent 23 between the frame 22 and the cover plate 21, so that the cover plate 21 is not required. Set the dividers without the need for an additional breathable collar.

In the third embodiment, the extending portion 212 is provided with a fixing hole 212b, so that a locking member S can pass through the joint portion 222 of the frame 22 and be locked to the fixing hole 212b. As shown in FIG. 13 and FIG. 14 , in the embodiment of the present invention, the extending portion 212 is provided with a fastening member 212 c , and the fastening member 212 c can pass through and fasten the coupling portion 222 coupled to the frame 22 . Accordingly, the extension portion 212 and the joint portion 222 can be coupled by locking or fastening, and the invention is not limited thereto.

Furthermore, a filter screen 4 is disposed in the through slot 221 of the frame body 22, and the filter screen 4 blocks the space on both sides of the through slot 221 . Thereby, the screen 4 can filter the airflow flowing through the through groove 221, so that the ventilating fan of the embodiment of the invention can prevent dust from accumulating inside the fan 11, and has the effect of prolonging the service life of the ventilating fan.

Please refer to Figures 15 and 16, wherein Figure 15 is the fourth embodiment of the present invention. A partially enlarged cross-sectional exploded view of the housing 1 and the outer cover 2 of the ventilating fan of the embodiment. FIG. 16 is a partially enlarged cross-sectional view of the housing 1 and the outer cover 2. The ventilating fan of the fourth embodiment also includes a casing 1 and a casing 2, and the casing 2 includes a cover plate 21 and a frame 22, which is different from the foregoing third embodiment in that the frame 22 is provided. There is an extension portion 223 that extends toward the cover plate 21 along the axial direction X. The cover plate 21 is provided with a joint portion 213 that is coupled to the extension portion 223.

The extension portion 223 also has a shoulder portion 223a away from the side of the frame body 22, and the shoulder portion 223a abuts the cover plate 21 toward a surface of the frame body 22. In addition, in the embodiment, the joint portion 213 of the cover plate 21 may be a through hole, and the extending portion 223 may be provided with a fixing hole 223b facing the joint portion 213 of the cover plate 21.

With the above structure, referring to Fig. 16, when the ventilating fan of the fourth embodiment of the present invention is actually used, it can also be mounted on a spacer D. The housing 1 can be coupled to the spacer D via the annular wall 12, and the outer cover 2 can be removably coupled to the annular wall 12 via the frame 22. A locking component S can pass through the joint portion 213 of the cover plate 21 and be locked to the fixing hole 223b of the extending portion 223, so that the extending portion 223 is coupled to the joint portion 213.

Accordingly, since the cover plate 21 abuts against the shoulder portion 223a, the extending portion 223 can separate the cover plate 21 of the outer cover 2 from the frame body 22, so that a space can be formed between the frame body 22 and the cover plate 21. The vent 23 communicates with the through slot 221, and the through slot 221 communicates with the airflow opening 112 of the fan 11. Therefore, the fan 11 can introduce an air flow through the vent 23, the through groove 221, and the air flow port 112.

Similarly, a gas permeable collar 83 is additionally provided or a partition 922 is disposed on the outer cover 92 to separate the outer casing 82, 92 from the casing 81, 91, compared to the foregoing prior art ventilating fans 8, 9. The ventilating fan can directly separate the cover 21 and the frame 22 by using the extending portion 223 of the frame 22 to form the vent 23 between the frame 22 and the cover 21, so that the cover 21 is not required. Set the dividers without the need for an additional breathable collar.

In addition, as shown in FIG. 17, in the ventilating fan of some embodiments of the present invention, a sound amplification device 5 may be additionally provided, and the sound amplification device 5 may be coupled to the casing 1 or the outer cover 2. For example, the sound reinforcement device 5 can be coupled to the frame 22, and the sound amplification device 5 preferably faces the vent 23 so that the sound waves played by the sound amplification device 5 are easily transmitted to the outside of the ventilating fan. The sound amplifying device 5 can be provided with a memory (for example, a flash memory) for storing audio; or the sound amplifying device 5 can also be provided with a wireless receiver (for example, a Bluetooth receiving module, Wi-Fi receiving) Module or infrared receiving module, etc.) for receiving audio from the outside. Thereby, the sound amplification device 5 can play sound waves in accordance with the audio. The audio may be music, so that the ventilation fan of the embodiment of the invention has a music playing function at the same time. On the other hand, the audio may also be white noise or compensating sound for denoising to cover or compensate the running noise of the fan 11, so that the ventilating fan of the embodiment of the invention has a good mute effect.

According to the foregoing structure, the main features of the ventilating fan of each embodiment of the present invention are:

The extension portion 121 can separate the annular wall 12 and the cover 21 of the outer cover 2 by providing an extension portion 121 of the annular wall 12 of the casing 1 to form the gap between the annular wall 12 and the cover plate 21. a vent 23; or, by providing an extension 212 on the cover 21 of the cover 2 or an extension 223 in the frame 22 of the cover 2, the extensions 212, 223 can separate the cover 21 from the The frame 22 forms the vent 23 between the frame 22 and the cover 21. Thereby, it is not necessary to additionally provide a partitioning member in the cover plate 21 to form the venting opening 23, and there is no need to additionally provide a venting collar, which has the effect of reducing the overall structural complexity of the ventilating fan.

The housing 1 can be coupled to the spacer D via the extension portion 121 disposed on the ring wall 12, so that the extension portion 121 can provide a bonding function in addition to the ring wall 12 and the cover plate 21, so that the housing portion 1 can provide a bonding function. The ring wall 12 does not need to be provided with other bonding structures for bonding the spacer D. In contrast, the extension portion 212 disposed on the cover plate 21 may be coupled to the frame body 22, and the extension portion 223 disposed on the frame body 22 may be coupled to the cover plate 21, so that the extension portion 212, 223 is apart from the cover portion. The plate 21 and the frame 22 can also provide a bonding function at the same time, so that the cover plate 21 or the frame 22 does not need to be provided with other bonding structures for the cover plate 21 and the frame 22 to be coupled to each other. Accordingly, the ventilating fan of each embodiment of the present invention does have the effect of reducing manufacturing difficulty.

In summary, the ventilation fan of each embodiment of the present invention can achieve the effects of reducing the structural complexity and manufacturing difficulty of the ventilation fan.

While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.

1‧‧‧shell

11‧‧‧Fan

111‧‧‧fan wheel

112‧‧‧Airflow

12‧‧‧ Ring wall

121‧‧‧Extension

121a‧‧‧Shoulder

121b‧‧‧Fixed holes

122‧‧‧ first joint

2‧‧‧ Cover

21‧‧‧ Cover

211‧‧‧ Second Joint Department

3‧‧‧Lighting

X‧‧‧ axial direction

S‧‧‧Locking components

Claims (17)

A ventilating fan, comprising: a casing, the casing comprises a fan and a ring wall, the fan has an axial direction, and the fan comprises a fan wheel and an air flow port, the air flow port is connected to the fan wheel, the ring The wall is disposed on the side of the fan having one of the airflow ports, the ring wall is provided with an extension portion away from the side of the fan; and a cover, the cover includes a cover plate, and the extension portion of the ring wall is along the axial direction Extending toward the cover plate, the extension portion abuts the cover plate; wherein a gap is formed between the ring wall and the cover plate, and the vent port communicates with the air flow opening. The ventilating fan according to claim 1, wherein the extending portion has a shoulder away from a side of the annular wall, and the shoulder abuts the cover. The ventilating fan according to claim 1, wherein the extending portion is provided with a fixing hole penetrating both sides of the extending portion in the axial direction. The ventilating fan according to claim 3, wherein the ventilating fan is mounted on a spacer, the ring wall passes through a through hole of the spacer, and a locking component passes through the fixing hole and is locked The spacer is facing the surface of the cover. The ventilating fan according to claim 1, wherein the ring wall is provided with one side of the extending portion connected to a ring flange, and the ring flange extends radially outward from the ring wall in the axial direction opposite to the axial direction. . The ventilating fan according to claim 5, wherein the ventilating fan is mounted on a spacer, the ring wall passes through a through hole of the spacer, and the extension is coupled to the spacer toward the cover The surface of the ring is opposite to the through hole in the axial direction. A ventilating fan, comprising: a casing, a fan is disposed inside the casing, the fan has an axial direction; and a casing, the casing comprises a cover plate and a frame body, and the frame body is coupled to the casing The frame body The through hole extends through the two side surfaces of the frame, and the frame body is provided with an extending portion extending along the axial direction toward the cover plate, and the cover plate is provided with a joint portion, the joint portion is provided with a joint portion a venting portion is formed between the frame body and the cover plate, the venting opening communicates with the through groove, and the extending portion has a shoulder away from a side of the frame body, the shoulder portion abutting the above The cover plate faces a surface of the frame. The ventilating fan of claim 7, wherein the joint portion is a perforation, and the extension portion is provided with a fixing hole, and a locking component passes through the joint portion and is locked to the fixing hole. The ventilating fan of claim 7, wherein the joint portion is a perforation, and the extension portion is provided with a fastening member that passes through and is buckled and coupled to the joint portion. The ventilating fan according to the seventh aspect of the invention, wherein the fan of the casing comprises a fan wheel and an air flow port, the air flow port is connected to the fan wheel, the casing comprises a ring wall, and the ring wall is disposed on the fan There is one side of the air flow port, and the frame body is coupled to the ring wall away from one side of the fan. The ventilating fan according to claim 7, wherein the ventilating fan further comprises a filter mesh disposed in the through groove. The ventilating fan according to any one of claims 1 to 7, wherein the venting port has a first height in the axial direction, and the extending portion has a second height in the axial direction. The second height is greater than or equal to the first height. The ventilating fan according to any one of claims 1 to 7, wherein the cover plate is combined with a luminaire. The ventilating fan according to any one of claims 1 to 7, wherein a sound amplifying device is further provided, and the sound amplifying device is coupled to the casing or the outer casing. The ventilating fan according to claim 14, wherein the sound amplifying device is provided with a Wireless receiver. The ventilating fan according to claim 15, wherein the wireless receiver is a Bluetooth receiving module, a Wi-Fi receiving module or an infrared receiving module. The ventilating fan according to claim 14, wherein the sound amplifying device plays sound waves according to an audio, and the sound is white noise or compensating sound for noise removal.