Fan, ventilation equipment and cabinet type air conditioner indoor unit

Abstract

The utility model provides a fan, ventilation equipment and a cabinet type air conditioner indoor unit, and belongs to the technical field of ventilation. The fan comprises a fan shell, a support, a motor and fan blades in driving connection with the motor. A fan cavity is defined by the fan shell, and a fan cavity inlet and a fan cavity outlet are formed in the fan cavity. The support, the motor and the fan blades are all located in the fan cavity. The support is arranged on the fan shell, and a first vibration reduction piece is arranged at the joint of the support and the fan shell. The motor is arranged on the support, and a second vibration reduction piece is arranged at the joint of the motor and the support. When the fan runs, the first vibration reduction part can reduce the vibration of the support and reduce the vibration transmitted to the fan shell by the support, and the second vibration reduction part can reduce the vibration of the motor and reduce the vibration transmitted to the support by the motor. The overall noise of the fan is reduced, the fan is prevented from loosening, and the running reliability of the fan is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ventilation, and particularly relates to a fan, a ventilation device and a cabinet-type air conditioner indoor unit. Background Art

[0002] In the existing ventilation device, an air inlet and an air outlet are formed on the shell wall of the housing, a air duct communicating the air inlet and the air outlet is formed inside the housing, and a fan is arranged in the air duct; when the fan operates, the air in the external environment enters the air duct through the air inlet and is then discharged to the external environment through the air outlet; however, when the fan operates, the vibration of the motor is likely to generate noise and cause the fan to loosen, thereby resulting in the fan being not firmly fixed and unreliable in operation, and the user experience is poor. Content of the Utility Model

[0003] In view of this, the utility model provides a fan, a ventilation device and a cabinet-type air conditioner indoor unit to solve the problems that when the fan in the existing technology operates, the vibration of the motor is likely to generate noise and cause the fan to loosen, thereby resulting in the fan being not firmly fixed and unreliable in operation.

[0004] The utility model provides a fan for a ventilation device; the fan comprises:

[0005] A fan housing which encloses a fan cavity; one end of the fan cavity forms a fan cavity inlet, and the other end forms a fan cavity outlet;

[0006] A bracket which is located in the fan cavity; the bracket is arranged on the fan housing, and a first damping member is arranged at the connection between the bracket and the fan housing;

[0007] A motor and a fan blade, both the motor and the fan blade are located in the fan cavity, the motor is arranged on the bracket, and a second damping member is arranged at the connection between the motor and the bracket; the fan blade is drivingly connected to the output shaft of the motor;

[0008] Wherein, both the first damping member and the second damping member are made of elastic materials.

[0009] Further optionally, the bracket further comprises a bracket seat and a plurality of bracket arms, the motor is arranged on the bracket seat, the plurality of bracket arms are arranged around the bracket seat at intervals, and one end of each bracket arm is connected to the bracket seat, and the other end forms a first connection structure;

[0010] A plurality of second connection structures are formed at the position of the fan housing close to the fan cavity inlet, and the plurality of second connection structures are arranged around the fan cavity inlet; the plurality of second connection structures are connected to the plurality of first connection structures in one-to-one correspondence, and the first damping member is arranged between the second connection structure and the first connection structure;

[0011] Among them, the first damping member is made of two materials with different damping performances.

[0012] Further optionally, the bracket seat is formed with a bracket hole and a plurality of third connection structures, and the plurality of third connection structures are arranged around the bracket hole;

[0013] The motor includes a motor main body and a motor seat. The motor main body is inserted into the bracket hole. The motor seat is formed with a plurality of fourth connection structures, and the plurality of fourth connection structures are arranged around the output shaft of the motor; the plurality of fourth connection structures and the plurality of third connection structures are connected in one-to-one correspondence, and the second damping member is arranged between the fourth connection structure and the third connection structure.

[0014] Further optionally, the blower further includes an annular sound-absorbing member, and the sound-absorbing member is arranged in the blower cavity and surrounds the outside of the impeller;

[0015] Among them, the sound-absorbing member is made of foam material.

[0016] Further optionally, the blower housing includes a housing main body and a cover body. One end of the housing main body is formed with the blower cavity inlet, the other end of the housing main body is covered with the cover body, and the cover body is formed with the blower cavity outlet; the cover body and the housing main body enclose the blower cavity;

[0017] An annular limiting structure is formed at one end of the housing main body close to the blower cavity inlet. One end of the sound-absorbing member is matched with the limiting structure, and the other end of the sound-absorbing member abuts against the cover body.

[0018] The present utility model further provides a ventilation device, and the ventilation device includes a housing and the blower described in any one of the above; the housing is formed with an air duct, the blower is arranged in the air duct, the blower housing is arranged on the housing, and a third damping member is arranged at the connection between the blower housing and the housing;

[0019] Among them, the third damping member is made of an elastic material.

[0020] Further optionally, the blower housing forms a blower seat on the outside of the blower cavity, and the blower seat is formed with a plurality of fifth connection structures arranged at intervals;

[0021] The housing is formed with a plurality of sixth connection structures arranged at intervals, and the sixth connection structures are located in the air duct; the plurality of sixth connection structures and the plurality of fifth connection structures are arranged in one-to-one correspondence, and the third damping member is arranged between the sixth connection structure and the fifth connection structure;

[0022] Among them, the third damping member is made of two materials with different damping performances.

[0023] Further optionally, an opening is formed in the upper part of the cabinet, and a lower air outlet is formed in the lower part of the cabinet; there are two fans, and the two fans include an upper fan and a lower fan; an upper ventilation frame, a first lower ventilation frame and a second lower ventilation frame are further arranged in the air duct, and the upper ventilation frame, the upper fan, the lower fan, the first lower ventilation frame and the second lower ventilation frame are arranged in sequence from top to bottom;

[0024] The upper ventilation frame forms an upper ventilation duct, one end of the upper ventilation duct is arranged at the opening, and an upper air inlet is formed near the opening of the upper ventilation frame, and the other end of the upper ventilation duct is communicated with the air outlet of the fan cavity of the upper fan; the first lower ventilation frame forms a first lower ventilation duct, and the second lower ventilation frame forms the second lower ventilation duct; the air outlet of the fan cavity of the lower fan, the first lower ventilation duct, the second lower ventilation duct and the lower air outlet are communicated in sequence.

[0025] Further optionally, the ventilation device has an upper air outlet mode and a lower air outlet mode;

[0026] When the ventilation device is in the upper air outlet mode, the upper fan operates, and the air in the external environment can enter the air duct through the lower air outlet, the second lower ventilation duct, the first lower ventilation duct and the fan cavity of the lower fan, and then is discharged through the fan cavity of the upper fan, the upper ventilation duct and the upper air inlet;

[0027] When the ventilation device is in the lower air outlet mode, the lower fan operates, and the air in the external environment can enter the air duct through the upper air inlet, the upper ventilation duct and the fan cavity of the upper fan, and then is discharged through the fan cavity of the lower fan, the first lower ventilation duct, the second lower ventilation duct and the lower air outlet.

[0028] Further optionally, an upper air inlet is further formed near the opening of the upper ventilation frame, and the upper air inlet surrounds the outside of the upper air inlet;

[0029] The cabinet includes a front panel, a rear panel and a chassis, the front panel and the rear panel are arranged opposite to each other front and back, and both the front panel and the rear panel are arranged on the chassis; the lower part of the front panel forms the lower air outlet, the rear panel is in a U-shaped structure, and the lower part of the left side wall and / or the right side wall of the rear panel forms a lower air inlet; an opening is formed between the upper part of the front panel and the upper part of the rear panel;

[0030] Both the upper air inlet and the lower air inlet are communicated with the external environment and the air duct.

[0031] The present utility model further provides a cabinet-type air conditioner indoor unit, and the cabinet-type air conditioner indoor unit includes an indoor heat exchanger and the ventilation device according to any one of the above; the indoor heat exchanger is arranged in the air duct and is located between the upper fan and the lower fan.

[0032] Compared with the prior art, the beneficial effects of the present utility model mainly lie in that:

[0033] The fan includes a fan housing, a bracket, a motor, and a fan blade that is drivingly connected to the motor. The fan housing encloses a fan cavity, and the bracket, the motor, and the fan blade are all located within the fan cavity; the bracket is provided on the fan housing, and a first vibration damping member is provided at the connection between the bracket and the fan housing; the motor is provided on the bracket, and a second vibration damping member is provided at the connection between the motor and the bracket; when the fan operates, the first vibration damping member can reduce the vibration of the bracket and lower the vibration transmitted from the bracket to the fan housing, and the second vibration damping member can reduce the vibration of the motor and lower the vibration transmitted from the motor to the bracket; the overall noise of the fan is reduced, the loosening of the fan is avoided, and the reliability of the fan operation is improved, solving the problems in the prior art that the vibration of the motor is likely to generate noise and can also cause the loosening of the fan, thereby resulting in the insecure fixation and unreliable operation of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained based on the provided drawings.

[0035] The structures, proportions, sizes, etc. depicted in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions under which the present utility model can be implemented. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present utility model.

[0036] Figure 1a It is a schematic assembly structure diagram of the fan embodiment provided by the present utility model;

[0037] Figure 1b It is a schematic exploded structure diagram of the fan embodiment provided by the present utility model;

[0038] Figure 2a and Figure 2b It is a schematic structure diagram of the motor embodiment provided by the present utility model;

[0039] Figure 3 It is a schematic assembly structure diagram of the motor and bracket embodiments provided by the present utility model;

[0040] Figure 4a 、 Figure 4b andFigure 4c Schematic structural diagram of the fan housing according to an embodiment of the present utility model;

[0041] Figure 5 Schematic assembly structural diagram of the motor, bracket and fan housing according to an embodiment of the present utility model;

[0042] Figure 6a Schematic assembly structural diagram of the cabinet air conditioner indoor unit according to an embodiment of the present utility model;

[0043] Figure 6b Schematic exploded structural diagram of the cabinet air conditioner indoor unit according to an embodiment of the present utility model;

[0044] Figure 7a Schematic internal structural diagram of the cabinet air conditioner indoor unit in the upper air outlet mode according to an embodiment of the present utility model;

[0045] Figure 7b Schematic internal structural diagram of the cabinet air conditioner indoor unit in the lower air outlet mode according to an embodiment of the present utility model;

[0046] In the figure:

[0047] 1 - Fan; 11 - Fan housing; 111 - Housing main body; 112 - Cover body; 113 - Second connection structure; 114 - Fan cavity; 115 - Fan seat; 116 - Fifth connection structure; 117 - Fan cavity inlet; 118 - Fan cavity outlet; 12 - Bracket; 121 - Bracket seat; 122 - Bracket arm; 123 - First connection structure; 124 - Third connection structure; 125 - Bracket hole; 13 - Motor; 131 - Motor main body; 132 - Motor seat; 133 - Fourth connection structure; 14 - Wind blade; 15 - First shock absorber; 16 - Second shock absorber; 17 - Sound absorber; 181 - Upper fan; 182 - Lower fan; 19 - Third shock absorber;

[0048] 2 - Machine shell; 21 - Front panel; 211 - Lower air outlet; 22 - Rear panel; 221 - Sixth connection structure; 222 - Lower air inlet; 23 - Chassis; 24 - Air duct;

[0049] 3 - Upper ventilation frame; 31 - Upper ventilation duct; 32 - Upper air outlet; 33 - Upper air inlet;

[0050] 41 - First lower ventilation frame; 411 - First lower ventilation duct; 42 - Second lower ventilation frame; 421 - Second lower ventilation duct;

[0051] 5 - Indoor heat exchanger. Detailed implementation manners

[0052] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0053] The terms used in the embodiments of the present utility model are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model. The singular forms "a", "the" and "said" used in the embodiments of the present utility model and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two, but does not exclude the case of including at least one.

[0054] It should be understood that the term "and / or" used herein is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0055] It should also be noted that the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a commodity or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such commodity or system. Without further limitation, the element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or system including the said element.

[0056] In existing ventilation equipment, when the fan operates, the vibration of the motor is likely to generate noise, and at the same time, it can cause the loosening of the fan, which in turn leads to the insecure fixation of the fan and unreliable operation, resulting in a poor user experience.

[0057] The present utility model creatively provides a fan for ventilation equipment. The fan includes a fan housing, a bracket, a motor, and a wind blade drivingly connected to the motor. The fan housing encloses a fan cavity, and the fan cavity is formed with a fan cavity inlet and a fan cavity outlet. The bracket, the motor, and the wind blade are all located in the fan cavity. The bracket is provided on the fan housing, and a first vibration damping member is provided at the connection between the bracket and the fan housing. The motor is provided on the bracket, and a second vibration damping member is provided at the connection between the motor and the bracket.

[0058] When the fan is running, the first shock absorber can reduce the vibration of the bracket and the vibration transmitted from the bracket to the fan housing. The second shock absorber can reduce the vibration of the motor and the vibration transmitted from the motor to the bracket, reducing the overall noise of the fan, preventing the fan from loosening, and improving the reliability of the fan operation.

[0059] Embodiment 1

[0060] As Figures 1a to 5 shown, this embodiment provides a fan for a ventilation device. The fan 1 includes:

[0061] A fan housing 11 that encloses a fan cavity 114. One end of the fan cavity 114 forms a fan cavity inlet 117, and the other end forms a fan cavity outlet 118.

[0062] A bracket 12 located inside the fan cavity 114. The bracket 12 is provided on the fan housing 11, and a first shock absorber 15 is provided at the connection between the bracket 12 and the fan housing 11.

[0063] A motor 13 and a wind blade 14, both the motor 13 and the wind blade 14 are located inside the fan cavity 114. The motor 13 is provided on the bracket 12, and a second shock absorber 16 is provided at the connection between the motor 13 and the bracket 12. The wind blade 14 is drivingly connected to the output shaft of the motor 13.

[0064] Among them, both the first shock absorber 15 and the second shock absorber 16 are made of an elastic material and are both rubber parts.

[0065] When the motor 13 is running, the vibration of the motor 13 will be transmitted to the bracket, and the bracket 12 will then transmit the vibration to the fan housing 11. Therefore, blocking the vibration transmission path between the bracket 12 and the fan housing 11 or reducing the vibration transmission speed between the bracket 12 and the fan housing 11 is an important way to reduce the vibration between the bracket 12 and the fan housing 11. The following further explains the installation position of the first shock absorber 15. The bracket 12 further includes a bracket base 121 and a plurality of bracket arms 122. The motor 13 is provided on the bracket base 121. The plurality of bracket arms 122 are arranged at intervals around the bracket base 121, and one end of each bracket arm 122 is connected to the bracket base 121, and the other end forms a first connection structure 123.

[0066] A plurality of second connection structures 113 are formed at the fan housing 11 near the fan cavity inlet 117. The plurality of second connection structures 113 are arranged around the fan cavity inlet 117. The plurality of second connection structures 113 are connected to the plurality of first connection structures 123 in a one-to-one correspondence, and a first shock absorber 15 is provided between the second connection structure 113 and the first connection structure 123.

[0067] Among them, the first vibration damping member 15 is made of two materials with different vibration damping performances, which can effectively reduce the vibration between the bracket 12 and the fan housing 11; preferably, the first vibration damping member 15 is a two-color injection molded rubber part, which is formed by a two-color injection molding process; for example, the two materials with different vibration damping performances that make up the first vibration damping member 15 are silicone rubber and fluororubber respectively; ① Silicone rubber has good flexibility and elasticity, and has good vibration damping performance; it can absorb vibration energy to a certain extent and reduce the transmission of vibration; ② The vibration damping performance of fluororubber is slightly weaker than that of silicone rubber, but it has excellent chemical corrosion resistance, high temperature resistance and sealing performance; or,

[0068] The two materials with different vibration damping performances that make up the first vibration damping member 15 are ethylene propylene rubber and chloroprene rubber respectively; ① Ethylene propylene rubber has excellent aging resistance, weather resistance and electrical insulation, and also has certain vibration damping performance; its molecular structure is stable, it can maintain elasticity for a long time, and effectively reduce the influence of vibration; ② Chloroprene rubber has good wear resistance, oil resistance and flame retardancy, and its vibration damping performance is moderate; it has high strength, can withstand a certain load, and can also absorb part of the vibration energy.

[0069] Specifically, both the first connection structure 123 and the second connection structure 113 are threaded holes.

[0070] When the motor 13 operates, the vibration of the motor 13 will be transmitted to the bracket. Therefore, blocking the vibration transmission path between the motor 13 and the bracket 12 or reducing the vibration transmission speed between the motor 13 and the bracket 12 is an important way to reduce the vibration between the motor 13 and the bracket 12; the following further explains the installation position of the second vibration damping member 16. The bracket seat 121 is formed with a bracket hole 125 and a plurality of third connection structures 124, and the plurality of third connection structures 124 are arranged around the bracket hole 125;

[0071] The motor 13 includes a motor main body 131 and a motor seat 132. The motor main body 131 is inserted into the bracket hole 125. The motor seat 132 is formed with a plurality of fourth connection structures 133, and the plurality of fourth connection structures 133 are arranged around the output shaft of the motor 13; the plurality of fourth connection structures 133 and the plurality of third connection structures 124 are connected in one-to-one correspondence, and a second vibration damping member 16 is arranged between the fourth connection structure 133 and the third connection structure 124, which can effectively reduce the vibration between the motor 13 and the bracket 12;

[0072] Specifically, both the third connection structure 124 and the fourth connection structure 133 are threaded holes.

[0073] When the motor 13 operates, the wind blade 14 rotates, and there will be rotational noise. Blocking the transmission of rotational noise is an effective way to reduce the noise of the fan 1; therefore, in this embodiment, the designed fan 1 further includes an annular sound-absorbing member 17, and the sound-absorbing member 17 is arranged in the fan cavity 114 and surrounds the outside of the wind blade 14;

[0074] Among them, the sound-absorbing member 17 is made of a foam material, and the sound-absorbing member 17 can absorb rotational noise.

[0075] Furthermore, the blower housing 11 includes a housing main body 111 and a cover body 112. One end of the housing main body 111 is formed with a blower chamber inlet 117, and the other end of the housing main body 111 is covered with the cover body 112. The cover body 112 is formed with a blower chamber outlet 118; the cover body 112 and the housing main body 111 enclose a blower chamber 114;

[0076] An annular limiting structure is formed at one end of the housing main body 111 close to the blower chamber inlet 117. One end of the sound-absorbing member 17 is engaged with the limiting structure, and the other end of the sound-absorbing member 17 abuts against the cover body 112, so that the sound-absorbing member 17 is firmly arranged in the blower chamber 114.

[0077] Embodiment 2

[0078] As Figures 6a to 7b shown, this embodiment provides a ventilation device. The ventilation device includes a housing 2 and the blower described in any one of Embodiment 1; the housing 2 is formed with an air duct 24, the blower 1 is arranged in the air duct 24, the blower housing 11 is arranged on the housing 2, and a third vibration damping member 19 is arranged at the connection between the blower housing 11 and the housing 2;

[0079] Among them, the third vibration damping member 19 is made of an elastic material and is a rubber member; the third vibration damping member 19 can effectively reduce the vibration between the blower housing 11 and the housing 2; preferably, the third vibration damping member 19 is a two-color injection molded rubber member, which is formed by a two-color injection molding process; for example, the two vibration damping performance-different materials constituting the third vibration damping member 19 are silicone rubber and fluororubber respectively; ① Silicone rubber has good flexibility and elasticity, and has good vibration damping performance; it can absorb vibration energy to a certain extent and reduce the transmission of vibration; ② The vibration damping performance of fluororubber is slightly weaker than that of silicone rubber, but it has excellent chemical corrosion resistance, high temperature resistance and sealing performance; or,

[0080] The two vibration damping performance-different materials constituting the third vibration damping member 19 are ethylene propylene rubber and chloroprene rubber respectively; ① Ethylene propylene rubber has excellent aging resistance, weather resistance and electrical insulation properties, and also has certain vibration damping performance; its molecular structure is stable, it can maintain elasticity for a long time, and effectively reduce the influence of vibration; ② Chloroprene rubber has good wear resistance, oil resistance and flame retardancy, and its vibration damping performance is moderate; it has high strength, can withstand a certain load, and can also absorb part of the vibration energy.

[0081] When the motor 13 operates, the vibration of the motor 13 is transmitted to the support 12, the support 12 then transmits the vibration to the fan housing 11, and the fan housing 11 transmits the vibration to the housing 2. Therefore, blocking the vibration transmission path between the fan housing 11 and the housing 2 or reducing the vibration transmission speed between the fan housing 11 and the housing 2 is an important way to reduce the vibration between the fan housing 11 and the housing 2. The following further describes the installation position of the third vibration damping member 19. The fan housing 11 forms a fan base 115 on the outside of the fan cavity 114, and the fan base 115 forms a plurality of fifth connection structures 116 arranged at intervals.

[0082] The housing 2 forms a plurality of sixth connection structures 221 arranged at intervals in the air duct 24. The plurality of sixth connection structures 221 and the plurality of fifth connection structures 116 are arranged in one-to-one correspondence, and a third vibration damping member 19 is arranged between the sixth connection structure 221 and the fifth connection structure 116.

[0083] Among them, the third vibration damping member 19 is made of two materials with different vibration damping performances, which can effectively reduce the vibration between the fan housing 11 and the housing 2.

[0084] Specifically, both the fifth connection structure 116 and the sixth connection structure 221 are threaded holes.

[0085] The following describes the specific method for the ventilation equipment to achieve reversible up and down air outlet. An opening is formed in the upper part of the housing 2, and a lower air outlet 211 is formed in the lower part of the housing 2. There are two fans 1, and the two fans 1 include an upper fan 181 and a lower fan 182. An upper ventilation frame 3, a first lower ventilation frame 41, and a second lower ventilation frame 42 are also arranged in the air duct 24, and the upper ventilation frame 3, the upper fan 181, the lower fan 182, the first lower ventilation frame 41, and the second lower ventilation frame 42 are arranged in sequence from top to bottom.

[0086] The upper ventilation frame 3 forms an upper ventilation duct 31. One end of the upper ventilation duct 31 is arranged at the opening, and an upper air outlet 32 is formed near the opening of the upper ventilation frame 3. The other end of the upper ventilation duct 31 is communicated with the fan cavity outlet 118 of the upper fan 181. The first lower ventilation frame 41 forms a first lower ventilation duct 411, and the second lower ventilation frame 42 forms a second lower ventilation duct 421. The fan cavity outlet 118 of the lower fan 182, the first lower ventilation duct 411, the second lower ventilation duct 421, and the lower air outlet 211 are communicated in sequence.

[0087] Furthermore, the ventilation equipment is provided with an upper air outlet mode and a lower air outlet mode.

[0088] When the ventilation device is in the upper air outlet mode, the upper fan 181 operates, and the air in the external environment can enter the air duct 24 through the lower air inlet 211, the second lower ventilation duct 421, the first lower ventilation duct 411, and the fan cavity 114 of the lower fan 182, and then is discharged through the fan cavity 114 of the upper fan 181, the upper ventilation duct 31, and the upper air outlet 32;

[0089] When the ventilation device is in the lower air outlet mode, the lower fan 182 operates, and the air in the external environment can enter the air duct 24 through the upper air outlet 32, the upper ventilation duct 31, and the fan cavity 114 of the upper fan 181, and then is discharged through the fan cavity 114 of the lower fan 182, the first lower ventilation duct 411, the second lower ventilation duct 421, and the lower air inlet 211.

[0090] When the ventilation device is in the upper air outlet mode and the lower air outlet mode, since the air inlet is from one of the upper air outlet 32 or the lower air inlet 211, the air inlet volume is small, which results in low ventilation efficiency of the ventilation device; the following describes the specific methods for increasing the air inlet volume of the ventilation device. An upper air inlet 33 is also formed near the opening of the upper ventilation frame 3, and the upper air inlet 33 surrounds the outside of the upper air outlet 32;

[0091] The housing 2 includes a front panel 21, a rear panel 22, and a chassis 23. The front panel 21 and the rear panel 22 are arranged opposite to each other front and back, and both the front panel 21 and the rear panel 22 are arranged on the chassis 23; a lower air inlet 211 is formed at the lower part of the front panel 21, the rear panel 22 has a U-shaped structure, and a lower air inlet 222 is formed at the lower part of the left side wall and / or the right side wall of the rear panel 22; an opening is formed between the upper parts of the front panel 21 and the rear panel 22;

[0092] Both the upper air inlet 33 and the lower air inlet 222 are communicated with the external environment and the air duct 24;

[0093] When the ventilation device is in the upper air outlet mode, the upper fan 181 operates. A part of the air in the external environment can enter the air duct 24 through the lower air inlet 211, the second lower ventilation duct 421, the first lower ventilation duct 411, and the fan cavity 114 of the lower fan 182. Another part of the air in the external environment can enter the air duct 24 through the upper air inlet 33 and the lower air inlet 222. The air in the air duct 24 can be discharged through the fan cavity 114 of the upper fan 181, the upper ventilation duct 31, and the upper air outlet 32;

[0094] When the ventilation device is in the lower air outlet mode, the lower fan 182 operates. A part of the air in the external environment can enter the air duct 24 through the upper air outlet 32, the upper ventilation duct 31, and the fan cavity 114 of the upper fan 181. Another part of the air in the external environment can enter the air duct 24 through the upper air inlet 33 and the lower air inlet 222. The air in the air duct 24 is discharged through the fan cavity 114 of the lower fan 182, the first lower ventilation duct 411, the second lower ventilation duct 421, and the lower air inlet 211.

[0095] Embodiment 3

[0096] As Figures 6a to 7b shown, this embodiment provides a cabinet-type air conditioner indoor unit. The cabinet-type air conditioner indoor unit includes an indoor heat exchanger 5 and the ventilation device described in any one of the above; the indoor heat exchanger 5 is disposed in the air duct 24 and is located between the upper blower 181 and the lower blower 182.

[0097] The exemplary embodiments of the present disclosure have been specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structures, arrangements, or implementation methods described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A fan, for use in a ventilation device; characterized in that, The blower includes: A blower housing that encloses a blower chamber; one end of the blower chamber forms a blower chamber inlet, and the other end forms a blower chamber outlet; A bracket located within the blower chamber; the bracket is provided on the blower housing, and a first vibration damping member is provided at the connection between the bracket and the blower housing; A motor and a wind blade, both the motor and the wind blade are located within the blower chamber, the motor is provided on the bracket, and a second vibration damping member is provided at the connection between the motor and the bracket; the wind blade is drivingly connected to the output shaft of the motor; Wherein, both the first vibration damping member and the second vibration damping member are made of an elastic material.

2. The fan according to claim 1, characterized in that, The bracket further includes a bracket base and a plurality of bracket arms, the motor is provided on the bracket base, the plurality of bracket arms are arranged at intervals around the bracket base, and one end of each bracket arm is connected to the bracket base, and the other end forms a first connection structure; A plurality of second connection structures are formed at the blower housing near the blower chamber inlet, and the plurality of second connection structures are arranged around the blower chamber inlet; the plurality of second connection structures are connected to the plurality of first connection structures one by one, and the first vibration damping member is provided between the second connection structure and the first connection structure; Wherein, the first vibration damping member is made of two materials with different vibration damping performances.

3. The blower according to claim 2, wherein, The bracket base forms a bracket hole and a plurality of third connection structures, and the plurality of third connection structures are arranged around the bracket hole; The motor includes a motor main body and a motor base, the motor main body passes through the bracket hole, the motor base forms a plurality of fourth connection structures, and the plurality of fourth connection structures are arranged around the output shaft of the motor; the plurality of fourth connection structures are connected to the plurality of third connection structures one by one, and the second vibration damping member is provided between the fourth connection structure and the third connection structure.

4. The fan according to claim 1, characterized in that, The blower further includes an annular sound-absorbing member, and the sound-absorbing member is provided within the blower chamber and encloses the outside of the wind blade; Wherein, the sound-absorbing member is made of a foam material.

5. The fan according to claim 4, characterized in that, The blower housing includes a housing main body and a cover body, one end of the housing main body forms the blower chamber inlet, the other end of the housing main body is covered with the cover body, and the cover body forms the blower chamber outlet; the cover body and the housing main body enclose the blower chamber; One end of the housing main body near the blower chamber inlet forms an annular limiting structure, one end of the sound-absorbing member cooperates with the limiting structure, and the other end of the sound-absorbing member abuts against the cover body.

6. A ventilation device, characterized in that, The ventilation device includes a machine housing and the blower according to any one of claims 1 to 5; the machine housing forms an air duct, the blower is provided within the air duct, the blower housing is provided on the machine housing, and a third vibration damping member is provided at the connection between the blower housing and the machine housing; Wherein, the third vibration damping member is made of an elastic material.

7. The ventilation device according to claim 6, characterized in that, The blower housing forms a blower seat on the outside of the blower chamber, and the blower seat forms a plurality of fifth connection structures arranged at intervals; The housing is formed with a plurality of sixth connection structures arranged at intervals, and the sixth connection structures are located in the air duct; the plurality of sixth connection structures and the plurality of fifth connection structures are arranged in one-to-one correspondence, and the third damping member is arranged between the sixth connection structure and the fifth connection structure; Wherein, the third damping member is made of two materials with different damping performances.

8. The ventilation device according to claim 7, characterized in that, An opening is formed in the upper part of the housing, and a lower air outlet is formed in the lower part of the housing; there are two fans, and the two fans include an upper fan and a lower fan; an upper ventilation frame, a first lower ventilation frame and a second lower ventilation frame are further arranged in the air duct, and the upper ventilation frame, the upper fan, the lower fan, the first lower ventilation frame and the second lower ventilation frame are arranged in sequence from top to bottom; The upper ventilation frame is formed with an upper ventilation duct, one end of the upper ventilation duct is arranged at the opening, and an upper air inlet is formed near the opening of the upper ventilation frame, and the other end of the upper ventilation duct communicates with the outlet of the fan cavity of the upper fan; the first lower ventilation frame is formed with a first lower ventilation duct, and the second lower ventilation frame is formed with a second lower ventilation duct; the outlet of the fan cavity of the lower fan, the first lower ventilation duct, the second lower ventilation duct and the lower air outlet are communicated in sequence.

9. The ventilation device according to claim 8, characterized in that, The ventilation device is provided with an upper air outlet mode and a lower air outlet mode; When the ventilation device is in the upper air outlet mode, the upper fan operates, and the air in the external environment can enter the air duct through the lower air outlet, the second lower ventilation duct, the first lower ventilation duct and the fan cavity of the lower fan, and then be discharged through the fan cavity of the upper fan, the upper ventilation duct and the upper air inlet; When the ventilation device is in the lower air outlet mode, the lower fan operates, and the air in the external environment can enter the air duct through the upper air inlet, the upper ventilation duct and the fan cavity of the upper fan, and then be discharged through the fan cavity of the lower fan, the first lower ventilation duct, the second lower ventilation duct and the lower air outlet.

10. The ventilation device according to claim 8, characterized in that, An upper air inlet is further formed near the opening of the upper ventilation frame, and the upper air inlet surrounds the outside of the upper air inlet; The housing includes a front panel, a rear panel and a chassis, the front panel and the rear panel are arranged opposite to each other front and rear, and both the front panel and the rear panel are arranged on the chassis; the lower part of the front panel is formed with the lower air outlet, the rear panel is of a U-shaped structure, and the lower part of the left side wall and / or the right side wall of the rear panel is formed with a lower air inlet; an opening is formed between the upper part of the front panel and the upper part of the rear panel; Both the upper air inlet and the lower air inlet communicate the external environment and the air duct.

11. A cabinet-type air conditioner indoor unit, characterized in that, The cabinet-type air conditioner indoor unit includes an indoor heat exchanger and the ventilation device according to any one of claims 8 to 10; the indoor heat exchanger is arranged in the air duct and is located between the upper fan and the lower fan.

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