CN108443175B

CN108443175B - Shock-proof connecting device and fan with same

Info

Publication number: CN108443175B
Application number: CN201710121419.6A
Authority: CN
Inventors: 洪银树; 尹佐国; 吴智铭
Original assignee: Sunonwealth Electric Machine Industry Co Ltd
Current assignee: Sunonwealth Electric Machine Industry Co Ltd
Priority date: 2017-02-16
Filing date: 2017-03-02
Publication date: 2021-01-29
Anticipated expiration: 2037-03-02
Also published as: TW201831791A; TWI634268B; CN108443175A

Abstract

A vibration-damping connecting device and a fan with the same are used for solving the problem that the existing vibration-damping connecting device is easy to generate cracks and even break. The fan of the present invention comprises: a housing having at least one air inlet and an air outlet, a chamber in the housing communicating the at least one air inlet and the air outlet; a fan wheel is accommodated in the accommodating chamber; a motor extending into the chamber from one of the at least one air inlet or the air outlet and having a rotating shaft coupled to the impeller; and the vibration damping connecting devices are respectively provided with a first connecting part, a second connecting part and a vibration damping element, the first connecting part is connected with the motor, the second connecting part is connected with the shell, and the vibration damping element is arranged between the first connecting part and the second connecting part and completely separates the first connecting part and the second connecting part.

Description

Shock-proof connecting device and fan with same

Technical Field

The invention relates to a vibration-damping connecting device and a fan with the same, in particular to a vibration-damping connecting device which is convenient to mount, can effectively damp vibration and has better structural strength.

Background

Please refer to fig. 1, which is a conventional fan housing with a shock-proof connection device disclosed in taiwan patent No. M531519, wherein the fan housing has an outer frame 8 and a plurality of shock-proof connection devices 9. Each vibration damping connection device 9 is integrally formed to form a base 91, a covering sleeve 92 and two fixing plates 93, the base 91 is attached to the outer surface of the outer frame 8 and is screwed to the outer frame 8 by a plurality of screws 94, the covering sleeve 92 is used for covering a screw (not shown) for fixing the fan housing at a predetermined position, one side of each fixing plate 93 is respectively connected to two ends of the covering sleeve 92, and the other side of each fixing plate 93 is connected to the base 91.

However, since the shock-proof connection device 9 is generally made of elastic rubber or plastic material, the overall structural strength is easily weakened by the complicated structural configuration. In detail, after a period of use, the shock-proof connection device 9 is prone to crack or even break at the bent portion (such as the connection portion between the base 91 and any one of the fixing plates 93) or the thin-wall through hole (such as the hole of the base 91 for the screw 94 to pass through). In addition, due to the complicated structure, the shock-proof connection device 9 has a low tolerance to manufacturing errors (for example, if the hole for the screw 94 to pass through is closer to the periphery of the base 91 due to the manufacturing errors, the wall surface of the base 91 between the hole and the periphery may be more easily broken when being pressed by the screw 94). Therefore, there is a need to improve the conventional vibration damping connection device 9 and the fan having the same in order to improve the durability and the tolerance of manufacturing error.

Disclosure of Invention

In order to solve the above problems, the present invention provides a vibration damping connection device and a fan having the same, so as to prevent the elastic vibration damping element from generating cracks or even breaking at the bending portion or the thin-wall perforation portion, thereby improving the service life and the manufacturing error tolerance of the vibration damping connection device and the fan having the same.

The fan comprises a shell, a fan wheel, a motor and a plurality of vibration damping connecting devices. The shell is provided with at least one air inlet and one air outlet, and one accommodating chamber in the shell is communicated with the at least one air inlet and the air outlet. The fan wheel is accommodated in the accommodating chamber. The motor extends into the chamber from one of the at least one air inlet or the air outlet and is provided with a rotating shaft, and the rotating shaft is combined with the fan wheel. Each vibration damping connecting device is provided with a first connecting part, a second connecting part and a vibration damping element, the first connecting part is connected with the motor, the second connecting part is connected with the shell, and the vibration damping element is arranged between the first connecting part and the second connecting part and completely separates the first connecting part and the second connecting part. Therefore, the blast fan can effectively prolong the service life of the fan and improve the tolerance capability of manufacturing errors on the premise of achieving the function of shock resistance.

The first combining part comprises a C-shaped clamping jaw which clamps the radial side surface of the vibration damping element; the structure has the effect of reducing the structural complexity of the damping element.

The second combination part comprises a locking piece and a fixed seat, the locking piece penetrates through the shock-proof element and is combined with the fixed seat, and the locking piece and the fixed seat clamp the shock-proof element together along the axial direction of the shock-proof element.

Wherein, the shock-proof component is also provided with a ring groove which is formed on the radial side surface, and the C-shaped clamp claw extends into the ring groove; the structure has the effect of improving the combination stability between the damping element and the C-shaped clamping jaw.

Wherein the ring groove further has two side surfaces that clamp the C-shaped clamping jaw together; the structure has the effect of further improving the combination stability between the damping element and the C-shaped clamp claw.

The first combining part further comprises a first limiting block, the first limiting block extends towards the second combining part, the second combining part further comprises a second limiting block, the second limiting block extends towards the first combining part, and the first limiting block and the second limiting block limit the displacement of the shock-resisting element together; the structure has the effect of further improving the combination stability between the damping element and the first and second combination parts.

The locking piece penetrates through the shock-absorbing element along the axial direction of the shock-absorbing element, the first combining part additionally comprises a first limiting block, the first limiting block is formed on one side of the C-shaped clamping jaw and extends towards the second combining part, the second combining part additionally comprises a second limiting block, the second limiting block is formed on the fixed seat and extends towards the first combining part, and the first limiting block and the second limiting block jointly limit the displacement of the shock-absorbing element along the radial direction of the shock-absorbing element; the structure has the effect of further improving the combination stability between the damping element and the first and second combination parts.

The at least one air inlet is a first air inlet and a second air inlet, the first air inlet and the second air inlet are arranged on the two end walls of the shell in a separated mode along the axial direction of the motor, the air outlet is arranged on one side wall between the two end walls, and the motor extends into the accommodating chamber from the second air inlet.

Wherein, this at least one air intake is single air intake, and this air intake and air outlet are relative along the axial of this motor, and this motor is stretched into this appearance room by this air intake or air outlet.

The second combination part comprises a locking piece and a fixed seat, the locking piece penetrates through the shock-proof element and is combined with the fixed seat, and the locking piece penetrates through a through hole of a combination plate and then penetrates through the shock-proof element, so that the locking piece and the shock-proof element are respectively clamped on the combination plate by two opposite sides of the combination plate; the structure has the advantages that the fan can be fixed on a combination plate only through the vibration-damping connecting device, and the effect of components required by fixing the fan is greatly simplified.

The motor is provided with another rotating shaft which is combined with the second impeller, each vibration damping connecting device also comprises a third combining part which is connected with the second shell, and the vibration damping element is arranged among the first combining part, the second combining part and the third combining part, completely separates the first combining part from the second combining part and also completely separates the first combining part from the third combining part; the structure has the function of combining the two shells only through the shock-proof connecting device, thereby greatly simplifying the components required by combining the two fans.

The second combination part comprises a locking piece and a first fixed seat, the third combination part comprises a second fixed seat, the locking piece penetrates through the second fixed seat and the damping element and is combined with the first fixed seat, and the first fixed seat and the second fixed seat clamp the damping element together along the axial direction of the damping element; the structure has the effect of improving the combination stability between two fans which are mutually assembled.

The invention relates to a shock-proof connecting device of a fan, which comprises a first combining part, a second combining part and a shock-proof element. The first combining part is connected with a motor; the second combining part is connected with a shell and comprises a locking piece and a fixed seat; the shock-absorbing element is arranged between the first combining part and the second combining part and completely separates the first combining part from the second combining part. The locking piece penetrates through the vibration damping element and is combined with the fixed seat, and the locking piece and the fixed seat clamp and fix the vibration damping element together along one axial direction of the vibration damping element. Therefore, the blast fan can effectively prolong the service life of the vibration-resisting connecting device and improve the tolerance capability of manufacturing errors on the premise of achieving the vibration-resisting function.

The ring groove is also provided with two side surfaces which are attached to the C-shaped clamping jaw along two opposite directions; the structure has the effect of further improving the combination stability between the damping element and the C-shaped clamp claw.

The locking part penetrates through the second fixing seat and the shock-proof element and is combined with the first fixing seat, and the locking part clamps the shock-proof element together with the first fixing seat along the axial direction of the shock-proof element through the second fixing seat; the structure has the function of combining the two shells only through the shock-proof connecting device, thereby greatly simplifying the components required by combining the two fans.

Drawings

FIG. 1: a three-dimensional exploded view of a conventional fan housing with a vibration damping connection device;

FIG. 2: the fan with the shock-proof connecting device of the first embodiment of the invention has an exploded perspective view;

FIG. 3: the combined section of the fan with the shock-proof connecting device of the first embodiment of the invention;

FIG. 4: a partially exploded perspective view of the shock absorbing connector assembly of the first embodiment of the present invention;

FIG. 5: the assembled cross-sectional view of the seismic isolation coupling device of the first embodiment of the present invention (shown in encircled area a of figure 3);

FIG. 6: the shock-proof connecting device of the first embodiment of the invention is combined with the exploded perspective view of the outer surface of the motor in an assembling way;

FIG. 7: the fan with the shock-proof connecting device of the first embodiment of the invention is fixed on a combined section of a combination plate;

FIG. 8: the combined section view of the fan with the shock-proof connecting device of the second embodiment of the invention;

FIG. 9: the combined section view of the fan with the shock-proof connecting device of the third embodiment of the invention;

FIG. 10: a combined cross-sectional view of a third embodiment of the shock-damping attachment (shown as encircled area B in figure 9) of the present invention;

FIG. 11: the fan with the vibration damping connection device according to the third embodiment of the present invention is a combined sectional view with a single air outlet.

Description of the reference numerals

[ the invention ]

1 outer case (first outer case) 1a case

1b first air inlet of shell 11

12 second air inlet and 13 air outlet

14 end wall of chamber 15

16 end wall 17 side wall

1 'outer shell 11' air inlet

13 'outlet 14' chamber

15 'end wall 16' end wall

17' side wall

1 "second casing 1 a" shell

1b 'shell 11' first air inlet

12 'second air inlet 13' air outlet

14 "Chamber 15" end wall

16 "end wall 17" side wall

2 impeller (first impeller)

2' second impeller

3 motor 31 rotating shaft

3 'Motor 31' shaft

4 first coupling part of seismic isolation coupling 41

411C-shaped clamp 412 first limiting block

42 second combination part 421 locking piece

422 fixed seat (first fixed seat) 422a plate body

422b combined with the second stop block of the sleeve 423

43 radial sides of shock absorbing member 431

432 ring groove 432a bottom surface

432b side surface

Third joint of 4' seismic isolation joint 44

441 second fixing seat 441a plate body

441b is combined with a third limiting block of the sleeve 442

H-hole P-shaped combination board

[ Prior Art ]

8 outer frame

9 shock-proof connection device 91 base

92 cladding sleeve 93 fixing plate

94 screws.

Detailed Description

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below:

please refer to fig. 2 and fig. 3, which are first embodiments of the fan with the shock-proof connection device and the shock-proof connection device thereof according to the present invention, wherein the fan of the embodiment is in a blowing fan shape, but the invention is not limited to the fan shape suitable for the shock-proof connection device of the present invention. The fan comprises a shell 1, a fan wheel 2, a motor 3 and a plurality of vibration-damping connecting devices 4, wherein the fan wheel 2 is accommodated in the shell 1, the motor 3 penetrates through the shell 1 to be combined with the fan wheel 2, and the vibration-damping connecting devices 4 are connected between the motor 3 and the shell 1 so as to fix the position of the motor 3 relative to the shell 1 and block vibration which is generated in the operation process of the motor 3 and possibly transmitted to the shell 1.

The housing 1 has at least one air inlet and one air outlet, and in the blower fan of this embodiment, the air inlets include a first air inlet 11, a second air inlet 12 and an air outlet 13, wherein the first air inlet 11, the second air inlet 12 and the air outlet 13 are all communicated with a chamber 14 in the housing 1. In detail, the housing 1 of the present embodiment is preferably composed of two shells 1a, 1b, and the housing 1 includes two

end walls

15, 16 opposite in the axial direction and a side wall 17, the side wall 17 connects the two

end walls

15, 16 and is located between the two

end walls

15, 16. The two

end walls

15, 16 are preferably located on the two shells 1a, 1b, respectively, the side wall 17 is composed of the two shells 1a, 1b, the first air inlet 11 and the second air inlet 12 are disposed on the two

end walls

15, 16 at a distance from each other along the axial direction of the motor 3, and the air outlet 13 is disposed on the side wall 17.

The fan wheel 2 is accommodated in the accommodating chamber 14 of the housing 1, so that the driving air flow enters the accommodating chamber 14 from the first and

second air inlets

11 and 12 of the housing 1, and then is sent out from the air outlet 13.

The motor 3 extends into the accommodating chamber 14 from the second air inlet 12, and has a rotating shaft 31, and the rotating shaft 31 is coupled to the impeller 2. The portion of the motor 3 extending into the accommodating chamber 14 may be only the rotating shaft 31, but may also include other components of the motor 3, such as a portion adjacent to the rotating shaft 31 (as shown in fig. 3).

The plurality of vibration damping connection devices 4 are disposed along the outer peripheral surface of the motor 3, and preferably substantially equally divide the outer peripheral surface of the motor 3 by 360 degrees centering on the rotating shaft 31. In detail, the vibration damping connection devices 4 are disposed around the rotation shaft 31 at equal angular intervals regardless of whether the outer circumference of the motor 3 is circular or not. For example: if the number of the shock-proof connection devices 4 is two, the two shock-proof connection devices 4 have an equiangular interval of 180 degrees with the rotating shaft 31 as the center; if the number of the shock-proof connection devices 4 is three, any two adjacent shock-proof connection devices 4 have an equiangular interval of 120 degrees around the rotation shaft 31, and the rest can be done in the same way.

Referring to fig. 4 and 5, each of the shock-proof connection devices 4 has a first connection portion 41, a second connection portion 42 and a shock-proof element 43, the first connection portion 41 is connected to the motor 3, the second connection portion 42 is connected to the housing 1, and the shock-proof element 43 is disposed between the first connection portion 41 and the second connection portion 42 and completely separates the first connection portion 41 and the second connection portion 42 (i.e. the first connection portion 41 does not contact the second connection portion 42 at all). The vibration-damping element 43 is made of a material capable of absorbing mechanical vibration, and the elastic coefficient of the material is smaller than the elastic coefficient of the material forming the first combining portion 41 and the second combining portion 42, and is preferably rubber, silicone rubber or elastic plastic. In the present embodiment, the first engaging portion 41 is formed integrally with the housing of the motor 3; however, as shown in fig. 6, the first coupling portion 41 may be coupled to the outer surface of the motor 3 by an assembling method. Similarly, the second connecting portion 42 and the housing 1 can be integrally formed, but can also be assembled. In detail, the first combining portion 41 includes a C-shaped clamping jaw 411, the C-shaped clamping jaw 411 clamps the shock-absorbing element 43; the second combining portion 42 includes a locking member 421 and a fixing seat 422, the locking member 421 passes through the damping element 43 and is combined with the fixing seat 422, and the locking member 421 and the fixing seat 422 clamp the damping element 43 together along the axial direction of the damping element 43; the shock absorbing element 43 is preferably cylindrical to hold the C-shaped clamp 411 against its radial side 431 and to allow the locking member 421 to extend through the central passage of its cylindrical structure. As shown in fig. 4, the radial side 431 preferably forms a ring groove 432, and the ring groove 432 has a bottom surface 432a and two side surfaces 432b, and the two side surfaces 432b are respectively connected to two sides of the bottom surface 432 a. With this structure, the C-shaped clamp 411 can extend into the annular groove 432 and even clamp against the bottom surface 432a, and the two side surfaces 432b can clamp the C-shaped clamp 411 in opposite directions. Thereby, the relative position between the first combining portion 41 and the vibration damping member 43 can be firmly fixed.

Each of the seismic isolation connection devices 4 described above preferably further comprises the following structure: the first combining portion 41 further has a first limiting block 412, the second combining portion 42 further has a second limiting block 423, and the fixing base 422 includes a plate 422a and a combining sleeve 422b, wherein the plate 422a is used for connecting the housing 1 and clamping the damping element 43 together with the locking member 421, and the combining sleeve 422b is formed on the plate 422a and used for combining the locking member 421. In detail, as shown in fig. 3 and 5, the first stopper 412 is formed at one side of the C-shaped clamping jaw 411 and extends toward the plate 422a of the fixing base 422 of the second combining portion 42, and the second stopper 423 is formed at the plate 422a of the fixing base 422 and extends toward the C-shaped clamping jaw 411 of the first combining portion 41. In addition, the first stopper 412 and the second stopper 423 limit the displacement of the damping element 43 along the radial direction of the damping element 43, so as to further prevent the damping element 43 from being released. In addition, when the shock absorbing element 43 is cylindrical, the surfaces of the first stopper 412 and the second stopper 423 facing the shock absorbing element 43 are preferably curved, so as to limit the displacement of the shock absorbing element 43 and even further abut against the radial side 431 of the shock absorbing element 43.

With the shock-proof connection device 4, since the shock-proof element 43 made of elastic material is completely isolated and combined between the first and

second combination portions

41, 42, the shock-proof connection device 4 can effectively block the shock generated by the motor 3 at the first combination portion 41. In addition, since the shape of the shock-absorbing member 43 is a very simplified cylindrical structure, and the locking member 421 axially passes through the shock-absorbing member 43 along the axial direction of the shock-absorbing member 43 with a large length, the shock-absorbing member 43 is not prone to crack at the through hole for passing the locking member 421. In addition, even though the shock-absorbing member 43 may have the ring groove 432 to form a bending portion (e.g. the connection between the bottom surface 432a and any side surface 432 b), since the ring groove 432 is disposed around the shock-absorbing member 43, it is obviously not easy to be repeatedly bent in a certain direction by an external force, and thus, it is not easy to damage the bending portion of the shock-absorbing member 43 due to long-term use. Accordingly, the shock-absorbing member 43 can prevent the occurrence of cracks or fractures after long-term use. Furthermore, even if any one of the C-shaped claws 411 cannot certainly prevent the shock-absorbing member 43 from being separated from the first coupling portion 41 through the opening of the C-shaped claw 411, since the plurality of shock-absorbing coupling devices 4 are disposed along the outer circumferential surface of the motor 3 (preferably, the circumferential surface of the motor 3 is substantially equally divided by 360 degrees centering on the rotating shaft 31), the directions of the openings of the C-shaped claws 411 of the plurality of shock-absorbing coupling devices 4 are different, and therefore, the motor 3 can be stably coupled to the housing 1. Therefore, the anti-vibration connecting device and the fan with the device can effectively prolong the service life and improve the tolerance capability of manufacturing errors on the premise of achieving the anti-vibration function.

Fig. 7 shows an implementation state of the fan. In this embodiment, the housing 1 and the motor 3 can be fixed to a joint plate P (for example, an adapter plate for connecting with a mechanism housing plate) through the plurality of shock-proof connection devices 4, and the shock-proof element 43 of each shock-proof connection device 4 completely separates the first joint portion 41 and the second joint portion 42 from each other and also completely separates the first joint portion 41 and the joint plate P (i.e., the first joint portion 41 does not contact the joint plate P at all). In detail, the combination board P preferably forms a plurality of through holes H corresponding to the fixing seats 422 of the plurality of shock-proof connection devices 4, and the locking member 421 passes through the through holes H and the shock-proof elements 43 and is combined to the fixing seats 422. Therefore, the locking member 421 and the vibration damping element 43 respectively clamp the connecting plate P from two opposite sides of the connecting plate P, and the vibration generated by the motor 3 during the operation process can still be blocked by the vibration damping connecting device 4, thereby preventing the housing 1 or the connecting plate P from vibrating therewith. Therefore, the vibration damping connecting device 4 can be used for fixing the relative positions of the shell 1 and the motor 3 and fixing the fan on the combination board P.

Please refer to fig. 8, which illustrates a fan with a vibration damping connection device and a second embodiment of the vibration damping connection device according to the present invention, wherein the fan of the embodiment is in an axial flow fan shape. The difference between this embodiment and the first embodiment is: in the axial flow fan, at least one air inlet and one air outlet of the housing 1 ' of the fan are an air inlet 11 ' and an air outlet 13 ', and the air inlet 11 ' and the air outlet 13 ' are both communicated with a chamber 14 ' in the housing 1 '. The housing 1 ' of the present embodiment may be formed integrally, and includes two end walls 15 ', 16 ' opposite to each other in the axial direction and a side wall 17 ' connecting the two end walls 15 ', 16 ', the air inlet 11 ' and the air outlet 13 ' are separately disposed on the two end walls 15 ', 16 ', and the air inlet 11 ' or the air outlet 13 ' is used for a motor 3 to extend into the accommodating chamber 14 ' (the motor 3 shown in fig. 8 extends into the accommodating chamber 14 ' from the air outlet 13 '). In this embodiment, the structure in which the plurality of vibration damping connection devices 4 are provided on the outer peripheral surface of the motor 3 as described in the first embodiment is also provided.

Referring to fig. 9 and 10, a fan with a shock-absorbing connecting device and a third embodiment of the shock-absorbing connecting device thereof according to the present invention includes not only the housing 1 and the fan wheel 2 of the first embodiment as a first housing 1 and a first fan wheel 2, but also a second housing 1 ″ and a second fan wheel 2'. In addition, compared to the first embodiment, in this embodiment, the motor 3 is replaced by a motor 3 ', and the shock-proof connection devices 4 are replaced by shock-proof connection devices 4'. In detail, the second housing 1 ″ and the second impeller 2' are preferably symmetrical to the first housing 1 and the first impeller 2, i.e. the second housing 1 ″ also has a first air inlet 11 ", a second air inlet 12", an air outlet 13 ", a chamber 14", two end walls 15 ", 16" and a side wall 17 "arranged in the same manner, and the second housing 1 ″ may also be composed of two shells 1 a", 1b ". However, as shown in fig. 11, the sidewall 17 of the first housing 1 and the sidewall 17 "of the second housing 1" may be partially connected to each other, so that the two

outlets

13, 13 "are connected to form a single outlet 13, and the number of outlets is not limited in the present invention. The motor 3 'has two rotating shafts 31, 31', the rotating shaft 31 extends into the accommodating chamber 14 from the second air inlet 12 of the first housing 1 and is combined with the first impeller 2, and the rotating shaft 31 'extends into the accommodating chamber 14 "from the second air inlet 12" of the second housing 1 "and is combined with the second impeller 2'. Wherein, the two rotating shafts 31, 31 'can be two different output shafts of the motor 3', and the two output shafts can have different rotating speeds or be non-coaxial; however, the two shafts 31, 31' may be two coaxial output shafts, or even two opposite ends of the same shaft.

Referring to fig. 9 and 10, each of the shock-proof connection devices 4 'includes not only the first combination portion 41, the second combination portion 42 and the shock-proof element 43 of the shock-proof connection device 4 of the first embodiment, but also a third combination portion 44 of the shock-proof connection device 4', and the third combination portion 44 is connected to the second housing 1 ″. The shock-absorbing element 43 is disposed between the first combining portion 41, the second combining portion 42 and the third combining portion 44, and completely separates the first combining portion 41 from the second combining portion 42, and also completely separates the first combining portion 41 from the third combining portion 44 (i.e. the first combining portion 41 is not in contact with the second combining portion 42 and the third combining portion 44 at all). More specifically, the second combining portion 42 of the present embodiment includes a locking member 421 and a first fixing seat 422 (which is substantially the same as the fixing seat 422 of the first embodiment), and the third combining portion 44 includes a second fixing seat 441, and the locking member 421 passes through the second fixing seat 441 and the vibration damping element 43 and is combined with the first fixing seat 422, so that the first and second fixing

seats

422, 441 clamp the vibration damping element 43 together along the axial direction of the vibration damping element 43. The second fixing seat 441 preferably includes a plate 441a and a coupling sleeve 441b, and the coupling sleeve 441b is formed on the plate 441a and is coupled to the locking member 421. In addition, the first combining portion 41 and the third combining portion 44 can also form a structure similar to the first and

second stoppers

412, 423 of the first embodiment, for example, the first combining portion 41 has another first stopper 412 on the side facing the second housing 1 ″ and the third combining portion 44 has a third stopper 442, so that the first stopper 412 and the third stopper 442 limit the displacement of the damping element 43 together along the radial direction of the damping element 43.

In summary, the fan with the shock-proof connection device and the shock-proof connection device of the present invention only have a very simple structure through the shock-proof element 43 of each shock-proof connection device 4, and can effectively prevent the shock-proof element 43 from easily generating cracks or breaking after long-term use, so that the service life and the tolerance for manufacturing errors can be effectively improved on the premise of achieving the shock-proof function.

Claims

1. A fan, characterized by: the method comprises the following steps:

the air conditioner comprises a shell, a fan and a controller, wherein the shell is provided with at least one air inlet and one air outlet; a fan wheel accommodated in the accommodating chamber; a motor extending into the chamber from one of the at least one air inlet or the air outlet and having a rotating shaft coupled to the impeller; the vibration damping connecting devices are provided with a first connecting part, a second connecting part and a vibration damping element, the first connecting part is connected with the motor, the second connecting part is connected with the shell, and the vibration damping element is arranged between the first connecting part and the second connecting part and completely separates the first connecting part and the second connecting part; the shock-proof element is cylindrical, the first combining part comprises a C-shaped clamping jaw and a first limiting block, and the C-shaped clamping jaw clamps the radial side face of the shock-proof element; the second combination part comprises a locking piece, a fixed seat and a second limiting block, the locking piece penetrates through the shock-proof element and is combined with the fixed seat, and the locking piece and the fixed seat clamp the shock-proof element together along the axial direction of the shock-proof element; the locking piece penetrates through the shock-absorbing element along the axial direction of the shock-absorbing element, the first limiting block is formed on one side of the C-shaped clamping jaw and extends towards the second combining part, the second limiting block is formed on the fixed seat and extends towards the first combining part, and the first limiting block and the second limiting block limit the displacement of the shock-absorbing element along the radial direction of the shock-absorbing element together.

2. The fan of claim 1, wherein: the shock absorbing element also has a ring groove formed in the radial side surface into which the C-shaped clip extends.

3. The fan of claim 2, wherein: the ring groove also has two side surfaces that clamp the C-shaped jaw together.

4. The fan of claim 1, wherein: the at least one air inlet is a first air inlet and a second air inlet, the first air inlet and the second air inlet are arranged on the two end walls of the shell in an axially separated mode along the motor, the air outlet is arranged on one side wall between the two end walls, and the motor extends into the accommodating chamber from the second air inlet.

5. The fan of claim 1, wherein: the at least one air inlet is a single air inlet, the air inlet and the air outlet are opposite along the axial direction of the motor, and the motor extends into the accommodating chamber from the air inlet or the air outlet.

6. The fan as claimed in claim 1 or 2, wherein: the second joint part comprises a locking piece and a fixed seat, the locking piece penetrates through the shock-proof element and is combined with the fixed seat, wherein the locking piece penetrates through a through hole of a combination plate and then penetrates through the shock-proof element, so that the locking piece and the shock-proof element are respectively clamped on the combination plate by two opposite sides of the combination plate.

7. The fan of claim 1, wherein: the shell and the impeller are respectively a first shell and a first impeller, the fan additionally comprises a second shell and a second impeller, the second impeller is combined with the motor, each shock-proof connecting device also comprises a third combining part, the third combining part is connected with the second shell, and the shock-proof element is arranged among the first combining part, the second combining part and the third combining part, completely separates the first combining part and the second combining part and also completely separates the first combining part and the third combining part.

8. The fan as claimed in claim 7, wherein: the second combination portion comprises a locking piece and a first fixing seat, the third combination portion comprises a second fixing seat, the locking piece penetrates through the second fixing seat and the shock-proof element and is combined with the first fixing seat, and the first fixing seat and the second fixing seat clamp and fix the shock-proof element together along the axial direction of the shock-proof element.

9. A shock-proof connecting device of a fan is characterized in that: the method comprises the following steps:

a first coupling portion for coupling to a motor;

the second combining part is connected with a shell and comprises a locking piece, a fixed seat and a second limiting block; the locking piece penetrates through the vibration damping element and is combined with the fixed seat, and the locking piece and the fixed seat clamp the vibration damping element together along one axial direction of the vibration damping element; the shock-proof element is cylindrical, the first combining part comprises a C-shaped clamping jaw and a first limiting block, and the C-shaped clamping jaw clamps the radial side face of the shock-proof element; the locking piece penetrates through the shock-absorbing element along the axial direction of the shock-absorbing element, the first limiting block is formed on one side of the C-shaped clamping jaw and extends towards the second combining part, the second limiting block is formed on the fixed seat and extends towards the first combining part, and the first limiting block and the second limiting block limit the displacement of the shock-absorbing element along the radial direction of the shock-absorbing element together.

10. A seismic connection according to claim 9, wherein: the shock absorbing element also has a ring groove formed in the radial side surface into which the C-shaped clip extends.

11. A seismic connection according to claim 10, wherein: the ring groove also has two side surfaces that abut the C-shaped jaw in opposite directions.

12. A seismic connection according to claim 9, wherein: the fixing seat of the second combining part is a first fixing seat, the shock-proof connecting device further comprises a third combining part, the third combining part is connected to another shell and comprises a second fixing seat, the locking part penetrates through the second fixing seat and the shock-proof element and is combined with the first fixing seat, and the locking part and the first fixing seat clamp and fix the shock-proof element together along the axial direction of the shock-proof element through the second fixing seat.