Duct type air conditioner

Abstract

The utility model discloses an air duct type air conditioner which comprises a machine shell. A heat exchanger; the fan assembly comprises a fan part and an air duct part, and the fan part is arranged in the air duct part; the fan part comprises a centrifugal fan, a driving motor, a motor support and a bearing support, the driving motor is provided with a transmission shaft, the transmission shaft is in transmission connection with the centrifugal fan, the driving motor is arranged on the motor support, the motor support is connected with one axial end of the air duct part, and the bearing support comprises a support part and a bearing arranged in the support part. The end, away from the driving motor, of the transmission shaft is rotationally connected with the bearing. The support piece is connected with the other axial end of the air duct piece. Therefore, the bearing is arranged at one end of the transmission shaft of the driving motor, and the bearing can provide good support for one end, far away from the driving motor, of the transmission shaft, so that the structural strength of the fan component can be enhanced, and the structural reliability of the fan component can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a duct air conditioner. Background Art

[0002] The fan assembly of the duct fan in the related art generally includes a fan, a volute, a motor, a support leg, a clamp ring, etc. The motor, the support leg, and the clamp ring form a motor assembly.

[0003] Among them, the fan is fixed on the motor assembly and placed inside the volute to form a fan assembly. The fan assembly is installed inside the duct machine as a core component for air supply.

[0004] However, the conventional fixing method of the fan assembly has certain hidden dangers. When the machine is accidentally dropped or impacted, since the fan is fixed in a cantilever structure, a large impact will cause the fan to tilt, affecting the normal operation of the machine. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a duct fan, in which a bearing is added at one end of the transmission shaft of the driving motor to provide good support for the transmission shaft, thereby enhancing the structural reliability of the fan component.

[0006] In order to achieve the above-mentioned purpose, according to an embodiment of the utility model, a duct machine is proposed, comprising: a casing, wherein the casing is provided with an air inlet and an air outlet on two sides opposite to each other; a heat exchanger, wherein the heat exchanger is arranged in the casing and adjacent to the air inlet; a fan assembly, wherein the fan assembly is arranged in the casing, wherein the fan assembly is located on one side of the heat exchanger and adjacent to the air outlet, wherein the fan assembly comprises a fan part and an air duct part, wherein the fan part is arranged in the air duct part, and air enters the casing from the air inlet, and after heat exchange with the heat exchanger to form a heat exchange airflow, the heat exchange airflow enters the air duct part, and is driven by the fan part to accelerate the heat exchange airflow from the air outlet into the room; wherein the fan part comprises: a centrifugal fan; a drive motor, wherein the drive motor has a transmission shaft, and the transmission shaft is transmission-connected to the centrifugal fan; a motor bracket, wherein the drive motor is arranged on the motor bracket, and the motor bracket is connected to one axial end of the air duct part. Wherein, the fan component also includes: a bearing bracket, the bearing bracket includes a bracket component and a bearing, the bearing is arranged in the bracket component, the end of the transmission shaft away from the drive motor is rotatably connected to the bearing, and the bracket component is connected to the other axial end of the air duct component.

[0007] According to the duct fan of the embodiment of the utility model, a bearing is arranged at one end of the transmission shaft of the driving motor, so that the structural strength of the fan component can be strengthened, which is beneficial to improving the structural reliability of the fan component.

[0008] According to some embodiments of the utility model, the bracket member includes a support foot portion and a main body portion, the bearing is arranged in the main body portion, the support foot portion is connected to the main body portion and extends on a side radially away from the main body portion, one end of the support foot portion away from the main body portion is connected to the air duct member, and there are multiple support foot portions, and the multiple support foot portions are spaced apart in the circumferential direction of the main body portion.

[0009] According to some embodiments of the utility model, the support leg is provided with a hollow hole, the hollow hole extends in the length direction of the support leg, and the support leg is provided with a first reinforcing rib in the hollow hole.

[0010] According to some embodiments of the utility model, the support foot is provided with a first positioning portion, and the air duct member is provided with a second positioning portion, one of the first positioning portion and the second positioning portion is a positioning hole, and the other is a positioning protrusion, and the positioning protrusion is positioned and matched with the positioning hole.

[0011] According to some embodiments of the utility model, the bracket member includes a bracket body and an end cover, the bracket body includes the support foot portion and a main body portion, the main body portion is provided with a receiving groove, the bearing is arranged in the receiving groove, the receiving groove is open toward one side of the driving motor, and the end cover is detachably covered on the main body portion.

[0012] According to some embodiments of the utility model, the main body is provided with a first clamping portion on the outside corresponding to the accommodating groove, and the end cover is provided with a second clamping portion, one of the first clamping portion and the second clamping portion is a clamping slot, and the other is a clamping piece, and the clamping slot and the clamping piece are clamped together.

[0013] According to some embodiments of the utility model, an elastic buckle is provided in the slot, a clamping protrusion is provided on the clamping piece, and the clamping piece can be rotatably entered into the slot so that the clamping protrusion is elastically clamped and matched with the elastic buckle.

[0014] According to some embodiments of the utility model, a snap-on cover is provided on the main body, the snap-on cover and the main body define the snap-on slot, the elastic buckle is provided on the snap-on cover, a limiting protrusion is provided on the end cover, the limiting protrusion cooperates with the axial limiting function of the snap-on cover, a guiding inclined surface is provided on the limiting protrusion, and when the snap-on piece rotates into the snap-on slot, the guiding inclined surface cooperates with the guiding function of the snap-on cover.

[0015] According to some embodiments of the utility model, the bearing comprises: a metal bearing body; a rubber sleeve, wherein the rubber sleeve is sleeved on the outside of the metal bearing body, and the transmission shaft passes through the rubber sleeve and is rotatably connected to the metal bearing body.

[0016] The duct machine proposed according to the embodiment of the utility model comprises: a casing, wherein the casing is provided with an air inlet and an air outlet on two sides opposite to each other; a heat exchanger, wherein the heat exchanger is arranged in the casing and adjacent to the air inlet; a fan assembly, wherein the fan assembly is arranged in the casing, the fan assembly is located on one side of the heat exchanger and adjacent to the air outlet, the fan assembly comprises a fan part and an air duct part, the fan part is arranged in the air duct part, air enters the casing from the air inlet, and after heat exchange with the heat exchanger to form a heat exchange airflow, the heat exchange airflow enters the air duct part, and is driven by the fan part to accelerate the heat exchange airflow from the air outlet into the room; it is characterized in that the fan part comprises: a centrifugal fan; a driving motor, wherein the driving motor has a transmission shaft, and the transmission shaft is drivingly connected to the centrifugal fan; a motor bracket, wherein the driving motor is arranged on the motor bracket, and the motor bracket is connected to one axial end of the air duct part. Wherein, the fan component further includes: a bearing bracket, the bearing bracket is connected to the other axial end of the air duct component, and the end of the transmission shaft away from the driving motor is rotatably connected to the bearing bracket.

[0017] According to the duct fan of the embodiment of the utility model, a bearing is arranged at one end of the transmission shaft of the driving motor, so that the structural strength of the fan component can be strengthened, which is beneficial to improving the structural reliability of the fan component.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a schematic diagram of a duct machine according to an embodiment of the utility model;

[0021] Figure 2 It is a partial exploded view of the duct machine according to the embodiment of the utility model;

[0022] Figure 3 is a structural schematic diagram of a fan assembly according to an embodiment of the utility model;

[0023] Figure 4is a structural schematic diagram of a fan assembly according to an embodiment of the utility model from another perspective;

[0024] Figure 5 is an exploded schematic diagram of a fan component according to an embodiment of the utility model;

[0025] Figure 6 is an exploded schematic diagram of a bearing bracket according to an embodiment of the utility model;

[0026] Figure 7 is a schematic structural diagram of a bracket according to an embodiment of the utility model;

[0027] Figure 8 is a schematic structural diagram of an end cover according to an embodiment of the utility model;

[0028] Fig. 9 is a structural schematic diagram of the end cover according to another perspective of an embodiment of the utility model;

[0029] Fig.10 It is a partial exploded view of a fan assembly according to an embodiment of the utility model.

[0030] Reference numerals:

[0031] 100. Duct machine;

[0032] 1. Casing; 2. Heat exchanger;

[0033] 3. Fan assembly; 301. Fan component; 302. Air duct component; 3021. Second positioning portion;

[0034] 4. Centrifugal fan;

[0035] 5. driving motor; 501. transmission shaft;

[0036] 6. Motor bracket;

[0037] 7. Bearing bracket;

[0038] 701, bracket member; 7011, bracket body; 70111, support foot; 70112, hollow hole; 70113, first reinforcing rib; 70114, first positioning portion; 7012, main body; 70121, accommodating groove; 70122, first clamping portion; 70123, elastic buckle; 70124, clamping cover; 701241, first plate portion; 701242, second plate portion; 7013, end cover; 70131, second clamping portion; 70132, clamping protrusion; 70133, limiting protrusion; 70134, guiding inclined surface; 70135, second reinforcing rib;

[0039] 702, bearing; 7021, rubber sleeve. DETAILED DESCRIPTION

[0040] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0043] In the description of the present invention, "multiple" means two or more, and "several" means one or more.

[0044] Please refer to the following Figure 1-Figure 10 The duct machine 100 according to the embodiment of the present invention is described. The duct machine 100 according to the embodiment of the present invention is, for example, a vertical duct machine 100 .

[0045] like Figure 1-Figure 5 As shown, the duct machine 100 according to the embodiment of the utility model includes a casing 1, a heat exchanger 2 and a fan assembly 3.

[0046] The casing 11 is used to be placed vertically on the ground, and the casing 1 is provided with an air inlet and an air outlet, the heat exchanger 2 is arranged in the casing 1, and the fan assembly 3 is arranged in the casing 1 and is located on one side of the heat exchanger 2. The fan assembly 3 drives the air to enter the casing 1 from the air inlet, and the air exchanges heat with the heat exchanger 2 to form a heat exchange airflow, and then is driven by the fan assembly 3 to enter the room from the air outlet.

[0047] The casing 1 may have multiple air inlets, for example, one air inlet may be an air inlet for outdoor fresh air, and another air inlet may be an air inlet for indoor air. In addition, the fan assembly 3 may be located on one side of the heat exchanger 2 adjacent to the air outlet.

[0048] In this way, the duct machine 100 can selectively control outdoor fresh air and indoor air to enter the casing 1 through the air inlets through multiple air inlets, and the outdoor fresh air or indoor air can form a heat exchange airflow after heat exchange with the heat exchanger 2, and then be driven by the fan assembly 3 to be introduced into the room from the air outlet, thereby realizing indoor cooling or heating.

[0049] The fan assembly 3 includes a fan component 301 and an air duct component 302. The fan component 301 can provide power for the flow of the heat exchange airflow, and the air duct component 302 can limit the flow path of the heat exchange airflow in the casing 1, thereby ensuring that the heat exchange airflow flows along a preset path to achieve heat exchange of the heat exchange airflow in the air duct machine 100.

[0050] Furthermore, the fan component 301 is disposed in the air duct component 302 , so that the fan component 301 can directly drive air into the air duct machine 100 , thereby improving the working efficiency of the fan component 301 .

[0051] In the embodiment of the utility model, the fan component 301 includes a centrifugal fan 4 and a driving motor 5. The centrifugal fan 4 is a structure for driving air flow in the fan component 301. The centrifugal fan 4 is used in the duct air conditioner 100 to ensure the air supply volume of the duct air conditioner 100, thereby ensuring the user experience.

[0052] The driving motor 5 has a transmission shaft 501, which is in driving connection with the centrifugal fan 4. The transmission shaft 501 can transmit the output power of the driving motor 5 to the outside, so that the driving motor 5 can drive the centrifugal fan 4 to work, so that the centrifugal fan 4 generates enough air volume and enters the air duct 302.

[0053] The fan component 301 also includes a motor bracket 6, and the drive motor 5 is arranged on the motor bracket 6, so that the motor bracket 6 can provide a stable and reliable setting position for the drive motor 5, and can ensure that the structure of the drive motor 5 in the fan component 301 is fixed, so that the drive motor 5 can stably output power to the centrifugal fan 4 to ensure the normal operation of the centrifugal fan 4.

[0054] Furthermore, the motor bracket 6 is connected to one axial end of the air duct member 302, so that the drive motor 5 can be set in the air duct member 302 through the motor bracket 6, which can improve the structural integration of the fan assembly 3, and thus help to reduce the size of the duct machine 100, and can improve the product competitiveness of the embodiment of the utility model.

[0055] Furthermore, the fan component 301 further includes a bearing bracket 7, and the bearing bracket 7 includes a bracket component 701 and a bearing 702. The bearing 702 is arranged in the bracket component 701, so that the bracket component 701 can provide a stable and reliable setting position for the bearing 702, and the bracket component 701 is connected to the other axial end of the air duct component 302, thereby ensuring the structural reliability of the bearing 702 in the air duct component 302.

[0056] In the embodiment of the utility model, the driving motor 5 is fixed to one axial end of the air duct member 302 through the motor bracket 6, so that one end of the transmission shaft 501 can be fixed to one axial end of the air duct member 302 through the driving motor 5. The end of the transmission shaft 501 away from the driving motor 5 is connected to the bearing 702, and the bearing 702 is fixed to the other axial end of the air duct member 302 through the bracket member 701. In this way, the bearing 702 can provide support for the end of the transmission shaft 501 away from the driving motor 5, thereby improving the structural reliability of the transmission shaft 501 in the air duct member 302.

[0057] Furthermore, the bearing 702 in the embodiment of the utility model includes but is not limited to a ball bearing, and the transmission shaft 501 is rotatably connected to the bearing 702, so that the transmission shaft 501 can rotate normally in the air duct member 302, and further, the transmission shaft 501 and the centrifugal fan 4 can be normally connected.

[0058] Furthermore, the transmission shaft 501 extends axially along the air duct member 302 , and during the rotation of the transmission shaft 501 , the output power of the drive motor 5 is transmitted along the axial direction of the air duct member 302 from one end of the transmission shaft 501 connected to the drive motor 5 to the other end away from the drive motor 5 .

[0059] In the prior art, the transmission shaft is connected to the drive motor at only one end and the other end is unsupported. Therefore, during the rotation of the transmission shaft, the end of the transmission shaft away from the drive motor and the end connected to the transmission shaft and the drive motor may be eccentric. The eccentricity of the rotating shaft may cause abnormal vibration and noise, causing the duct machine to make unnecessary abnormal noises and reducing the user experience.

[0060] In the embodiment of the utility model, by adding a bearing 702 at the end of the transmission shaft 501 away from the driving motor 5, the transmission shaft 501 can be well supported, thereby solving the vibration and noise problems caused by the eccentricity of the transmission shaft 501, thereby improving the user experience.

[0061] In some specific embodiments of the present invention, Figure 6 and Figure 7As shown, the bracket member 701 includes a support foot portion 70111 and a main body portion 7012, the bearing 702 is arranged in the main body portion 7012, the support foot portion 70111 is connected to the main body portion 7012, and is extended on a side radially away from the main body portion 7012, and one end of the support foot portion 70111 away from the main body portion 7012 is connected to the air duct member 302, and there are multiple support foot portions 70111, and the multiple support foot portions 70111 are arranged at intervals in the circumferential direction of the main body portion 7012.

[0062] Specifically, the support foot portion 70111 and the main body 7012 of the bracket member 701 together constitute the bracket member 701, which can not only provide a setting position for the bearing 702, but also connect the bracket member 701 to the air duct member 302 to ensure the structural reliability of the bearing 702 in the fan assembly 3.

[0063] The main body 7012 is mainly used to set the bearing 702, which can ensure that the bearing 702 is stably set at one end of the transmission shaft 501, so that the bearing 702 can provide good support for the end of the transmission shaft 501 away from the drive motor 5.

[0064] One end of the support leg 70111 is connected to the main body 7012 in the radial direction of the main body 7012, and the other end extends toward a side away from the main body 7012, so that the support leg 70111 can be connected to the air duct member 302, so that the bracket member 701 can be connected and fixed to the air duct member 302, and then the main body 7012 can be fixed in the air duct member 302, so that the main body 7012 corresponds to the transmission shaft 501 in the air duct member 302. Such a configuration can facilitate the connection between the transmission shaft 501 and the bearing 702, which is conducive to improving the installation convenience of the fan assembly 3.

[0065] There are multiple support legs 70111, which can increase the connection positions between the bracket member 701 and the air duct member 302, strengthen the connection reliability between the bracket member 701 and the main body 7012, and help improve the structural reliability of the main body 7012 on the air duct member 302, and further help improve the support reliability of the bearing 702 in the main body 7012 for the transmission shaft 501.

[0066] Furthermore, the plurality of supporting legs 70111 are spaced apart in the circumferential direction of the main body 7012, so that the force applied to the bracket component 701 can be more uniform. In this way, when the air duct machine 100 collides, it can be avoided that at least one of the plurality of supporting legs 70111 is subjected to excessive force and breaks, thereby improving the structural strength of the bracket component 701 and improving the anti-collision ability of the fan component 301.

[0067] In some specific embodiments of the present invention, Figure 6 and Figure 7As shown, the support leg 70111 is provided with a hollow hole 70112 , and the hollow hole 70112 extends in the length direction of the support leg 70111 , and the support leg 70111 is provided with a first reinforcing rib 70113 in the hollow hole 70112 .

[0068] Specifically, the support foot 70111 in the embodiment of the utility model is arranged opposite to the flow direction of the heat exchange airflow in the air duct member 302, so the support foot 70111 has a certain blocking effect on the flow of the air in the air duct member 302. A hollow hole 70112 is arranged at the part of the support foot 70111 opposite to the flow direction of the heat exchange airflow, so that the heat exchange airflow can pass through the support foot 70111 through the hollow hole 70112 when flowing through the support foot 70111, thereby preventing the wind speed of the heat exchange airflow when flowing through the support foot 70111 from being affected, and reducing the influence of the support foot 70111 on the air volume and wind speed of the air outlet. With such an arrangement, the air volume of the duct machine 100 can be guaranteed while the structural reliability of the fan member 301 is improved, thereby improving the user experience.

[0069] Furthermore, the hollow hole 70112 extends in the length direction of the support leg 70111, which can increase the area of ​​the hollow hole 70112, improve the flow efficiency of the heat exchange airflow through the hollow hole 70112, and thus minimize the influence of the support leg 70111 on the air volume at the air outlet. It should be noted that the length direction of the support leg 70111 is consistent with the radial direction of the main body 7012.

[0070] In addition, the opening of the hollow hole 70112 on the support foot 70111 will reduce the structural strength of the support foot 70111 , thereby reducing the connection strength between the support foot 70111 and the air duct component 302 , affecting the structural reliability of the fan component 301 .

[0071] In an embodiment of the utility model, the support foot 70111 is provided with a first reinforcing rib 70113 in the hollow hole 70112, and the first reinforcing rib 70113 will not completely block the hollow hole 70112, and most of the area of ​​the hollow hole 70112 can be retained, so that not only the air flow through the hollow hole 70112 can be ensured, but also the structural strength of the support foot 70111 can be enhanced, thereby improving the structural strength of the bearing bracket 7, and improving the connection strength of the bearing bracket 7 to the air duct component 302, thereby ensuring the air output of the duct machine 100 while improving the structural reliability of the fan component 301.

[0072] In some specific embodiments of the present invention, there are multiple first reinforcing ribs 70113, wherein at least part of the first reinforcing ribs 70113 extend along the radial direction of the main body 7012 to support and reinforce the length direction of the leg portion 70111. In addition, at least part of the first reinforcing ribs 70113 are arranged along the circumference of the main body 7012, and the first reinforcing ribs 70113 arranged along the circumference of the main body 7012 are in the shape of an arc with an opening toward the main body 7012, and are arranged concentrically with the main body 7012.

[0073] In this way, when the heat exchange airflow passes through the hollow hole 70112, the first reinforcing rib 70113 can guide the flow of the heat exchange airflow, which is conducive to accelerating the heat exchange airflow passing through the support foot 70111 and avoiding disrupting the flow direction of the heat exchange airflow, thereby reducing the influence of the support foot 70111 on the air volume and wind speed blown out by the air duct machine 100, thereby improving the user experience.

[0074] In some specific embodiments of the present invention, Figure 6 , Figure 7 and Fig.10 As shown, the support foot 70111 is provided with a first positioning portion 70114, and the air duct member 302 is provided with a second positioning portion 3021. One of the first positioning portion 70114 and the second positioning portion 3021 is a positioning hole, and the other is a positioning protrusion, and the positioning protrusion is positioned and matched with the positioning hole.

[0075] Specifically, the first positioning portion 70114 can be set to predetermine the installation position on the foot portion 70111, and the second positioning portion 3021 can be set to predetermine the installation position on the air duct member 302. One of the first positioning portion 70114 and the second positioning portion 3021 is a positioning hole, and the other is a positioning protrusion. The structures of the positioning protrusion and the positioning hole are relatively simple, which can be easily processed on the foot portion 70111 and the air duct member 302, which is conducive to improving the production convenience of the stroke mechanism 301 of the utility model.

[0076] The positioning protrusion and the positioning hole can be easily matched and the positioning is reliable. With such a setting, the support foot 70111 and the air duct component 302 can be quickly positioned during the installation process of the support foot 70111 and the air duct component 302. This can not only improve the installation convenience of the support foot 70111 and the air duct component 302, but also ensure the installation accuracy of the support foot 70111 and the air duct component 302, thereby helping to improve the assembly efficiency of the fan component 301.

[0077] In some specific embodiments of the present invention, Figure 6 and Figure 7As shown, the bracket member 701 includes a bracket body 7011 and an end cover 7013 , and the bracket body 7011 includes a support foot portion 70111 and a main body portion 7012 .

[0078] Specifically, the support foot portion 70111 and the main body portion 7012 constitute the support body 7011 of the support member 701 to achieve the connection between the support member 701 and the air duct member 302, and can provide a setting position for the bearing 702 so that the bearing 702 can provide good support for the transmission shaft 501.

[0079] A receiving groove 70121 is provided in the main body 7012 . The receiving groove 70121 is open toward one side of the driving motor 5 , so that the bearing 702 can be placed in the receiving groove 70121 , so as to facilitate the installation of the bearing 702 in the bracket 701 .

[0080] The end cover 7013 is detachably covered on the main body 7012. Specifically, after the bearing 702 is installed in the receiving groove 70121, the end cover 7013 can be covered on the main body 7012 to cover the open side of the receiving groove 70121, so as to prevent the bearing 702 from falling from the receiving groove 70121 and ensure the reliability of the bearing 702 in the receiving groove 70121.

[0081] In some specific embodiments of the present invention, Figure 6-Figure 9 As shown, the main body 7012 is provided with a first clamping portion 70122 on the outside of the corresponding accommodating groove 70121, and the end cover 7013 is provided with a second clamping portion 70131. One of the first clamping portion 70122 and the second clamping portion 70131 is a clamping slot, and the other is a clamping piece. The clamping slot and the clamping piece are clamped together.

[0082] The first clamping portion 70122 can provide a connectable position for the main body 7012, and the second clamping portion 70131 can provide a connectable position for the end cover 7013. One of the first clamping portion 70122 and the second clamping portion 70131 is a clamping slot, and the other is a clamping piece. The structure of the clamping slot and the clamping piece is simple and easy to process, which can improve the processing convenience of the main body 7012 and the end cover 7013.

[0083] Furthermore, the matching operation of the card slot and the card plate is simple, and the card connection effect is reliable. Such a setting can not only reduce the difficulty of installing the end cover 7013 and the main body 7012, but also improve the connection reliability of the end cover 7013 and the main body 7012, thereby improving the structural reliability of the fan component 301.

[0084] In some specific embodiments of the present invention, Figure 6-Figure 9As shown, an elastic snap buckle 70123 is provided in the slot, and a snap protrusion 70132 is provided on the snap-in piece. The snap-in piece can be rotatably entered into the slot so that the snap protrusion 70132 and the elastic snap buckle 70123 are elastically snap-fitted.

[0085] Specifically, in the embodiment of the utility model, one side of the card slot is open to facilitate the card piece to enter the card slot and engage with the card slot. When installing the end cover 7013 and the main body 7012, the end cover 7013 needs to be rotated, and the card piece rotates with the end cover 7013 until the card piece rotates into the card slot.

[0086] After the snap-in plate enters the slot, the snap-in protrusion 70132 on the snap-in plate can squeeze the elastic snap buckle 70123, and the snap-in plate continues to rotate until the elastic snap buckle 70123 is reset and limited to each other with the snap-in protrusion 70132, so that the position of the end cover 7013 relative to the main body 7012 can be fixed, the rotation of the end cover 7013 relative to the main body 7012 can be prevented, and the connection reliability of the end cover 7013 and the main body 7012 can be ensured.

[0087] The snap-fitting protrusion 70132 is elastically snap-fitted with the elastic snap buckle 70123, so that during the installation of the end cover 7013 and the main body 7012, it is only necessary to apply a force to rotate the end cover 7013. During the rotation of the end cover 7013, after the snap-fitting protrusion 70132 contacts one end of the elastic snap buckle 70123, the elastic snap buckle 70123 can be squeezed toward the side close to the end cover 7013 until the snap-fitting protrusion 70132 is disengaged from the elastic snap buckle 70123. Then, the elastic snap buckle 70123 is reset under the action of its own elastic force and at the same time, the snap-fitting protrusion 70132 can be restricted from rotating toward the side where the slot is open. In this way, the snap-fitting protrusion 70132 can be restricted in the slot, thereby achieving quick installation of the end cover 7013 and the main body 7012.

[0088] Furthermore, the end cover 7013 and the main body 7012 in the embodiment of the utility model are rotatably installed, and an elastic buckle 70123 and a snap-fitting protrusion 70132 are provided, which not only ensures that the end cover 7013 and the main body 7012 are snap-fitted reliably, but also eliminates the need for screw connection and fixing, making the installation method simpler and more efficient, thereby improving the assembly convenience of the duct machine 100.

[0089] In some specific embodiments of the present invention, Figure 6 and Figure 7As shown, a snap-on cover 70124 is provided on the main body 7012, a slot is defined between the snap-on cover 70124 and the main body 7012, an elastic buckle 70123 is provided on the snap-on cover 70124, a limiting protrusion 70133 is provided on the end cover 7013, the limiting protrusion 70133 cooperates with the axial limiting of the snap-on cover 70124, a guiding inclined surface 70134 is provided on the limiting protrusion 70133, and when the snap-on piece rotates to enter the slot, the guiding inclined surface 70134 cooperates with the snap-on cover 70124 for guidance.

[0090] Specifically, the snap-on cover 70124 includes a first plate portion 701241 and a second plate portion 701242, one end of the first plate portion 701241 is connected to the main body portion 7012, and the other end extends toward the end cover 7013, one end of the second plate portion 701242 is connected to one end of the first plate portion 701241 away from the main body portion 7012, and is bent relative to the first plate portion 701241, and the second plate portion 701242 extends circumferentially along the main body portion 7012, so that a slot can be defined on the main body portion 7012, and the slot is open on the side away from the first plate portion 701241, so that when the end cover 7013 is rotated, the snap-on piece can enter the slot from the side of the slot away from the first plate portion 701241.

[0091] Furthermore, the elastic clip 70123 is located on the second plate portion 701242. When the snap-in piece enters the slot, the snap-in protrusion 70132 contacts the end of the elastic clip 70123 away from the first plate portion 701241, and the elastic clip 70123 can be squeezed toward the side close to the end cover 7013. At this time, the first plate portion 701241 and the second plate portion 701242 can ensure the structural reliability of the slot. When the snap-in protrusion 70132 moves to one end of the elastic snap 70123 close to the first plate portion 701241, the snap-in protrusion 70132 disengages from the elastic snap 70123, and the elastic snap 70123 resets itself under the action of its own elastic force, and at the same time, it can restrict the snap-in protrusion 70132 in the slot together with the first plate portion 701241 to prevent the end cover 7013 from rotating in the opposite direction and disengaging, thereby realizing a quick connection between the end cover 7013 and the main body 7012 and ensuring the reliability of the connection between the end cover 7013 and the main body 7012.

[0092] The limiting protrusion 70133 is arranged on the end cover 7013, and the limiting protrusion 70133 cooperates with the second plate portion 701242 of the snap-on cover 70124 along the axial limiting of the main body 7012, so that the limiting protrusion 70133 can limit the snap-on cover 70124 in the axial direction, and can support the snap-on cover 70124 in the axial direction, which is beneficial to strengthening the structural strength of the second plate portion 701242, and can prevent the snap-on cover 70124 from breaking, thereby helping to improve the matching reliability between the snap-on cover 70124 and the snap-on sheet, and can further improve the connection reliability between the end cover 7013 and the main body 7012.

[0093] The limiting protrusion 70133 extends in the same direction as the extension direction of the second plate portion 701242, and is provided with a guiding inclined surface 70134, which is arranged along the extension direction of the limiting protrusion 70133. At the same time, when the end cover 7013 rotates, the guiding inclined surface 70134 gradually approaches one side of the end cover 7013 along the rotation direction of the limiting protrusion 70133. With such a configuration, the guiding inclined surface 70134 can guide the rotation of the clamping piece in the clamping slot when the end cover 7013 is clamped and matched with the main body 7012, so that the clamping piece can accurately and quickly enter the clamping slot and stably move in the clamping slot, thereby enabling the clamping protrusion 70132 to be clamped and matched with the elastic buckle 70123 quickly and accurately, thereby facilitating the installation convenience of the end cover 7013 and the main body 7012.

[0094] In some other specific embodiments of the present invention, a chamfer is provided on the limiting protrusion 70133, and the angle of the chamfer is a, and a satisfies the relationship: 15°≤a≤30°.

[0095] In some embodiments of the present application, the chamfer angle on the limiting protrusion 70133 cannot be too large, otherwise it will affect the reliability of the limiting configuration between the limiting protrusion 70133 and the clamping cover 70124. In order to ensure the reliability of the axial position after the end cover 7013 is clamped with the main body 7012, the chamfer angle on the limiting protrusion 70133 is set not to exceed the first parameter value. For example, the first parameter value can be 30°, 29° or 28°. Consider selecting a suitable and specific parameter in the specific design.

[0096] In some embodiments of the present application, the chamfer angle on the limiting protrusion 70133 cannot be too small. If it is too small, it will increase the difficulty of the clamping of the clamping piece and the clamping slot, and then increase the difficulty of installing the end cover 7013 and the main body 7012. In order to improve the installation convenience of the end cover 7013 and the main body 7012, the chamfer angle on the limiting protrusion 70133 is set to be not less than the second parameter value. For example, the second parameter value can be 15°, 16° or 17°. Consider selecting a suitable and specific parameter in the specific design.

[0097] In some embodiments of the present application, the chamfer angle on the limiting protrusion 70133 is a, 15°≤a≤30°.

[0098] By setting the chamfer angle on the limiting protrusion 70133 to any vertical angle between 15° and 30°, not only can the axial position of the end cover 7013 and the main body 7012 be guaranteed to be reliable, but also the installation of the end cover 7013 and the main body 7012 can be facilitated.

[0099] In some specific embodiments of the present invention, Figure 8 and Fig. 9 As shown, the end cover 7013 is provided with a plurality of second reinforcing ribs 70135 arranged at intervals in the circumferential direction, and the plurality of second reinforcing ribs 70135 include but are not limited to a square structure, and are arranged perpendicularly relative to the end cover 7013. In addition, the plurality of second reinforcing ribs 70135 have a certain inclination angle and inclination direction relative to the axial direction of the end cover 7013, wherein the inclination direction of the second reinforcing ribs 70135 relative to the axis of the end cover 7013 can be consistent with the rotation direction when the end cover 7013 and the main body 7012 are installed, and can also be opposite to the rotation direction when the end cover 7013 and the main body 7012 are installed. Such an arrangement can make the process of installing the end cover 7013 and the main body 7012 easier and more labor-saving, which is conducive to improving the installation convenience of the bearing bracket 7.

[0100] In some specific embodiments of the present invention, Figure 5 and Figure 6 As shown, the bearing 702 includes a metal bearing 702 body and a rubber sleeve 7021. The metal bearing 702 body has a certain structural strength and rigidity, which can ensure the connection reliability between the transmission shaft 501 and the bearing 702, and enable the bearing 702 to provide good support for the transmission shaft 501.

[0101] The rubber sheath 7021 is sleeved on the outside of the metal bearing 702 body, and when the bearing 702 is installed in the receiving groove 70121 of the main body 7012, the rubber sheath 7021 can contact the main body 7012. The rubber sheath 7021 has a certain elasticity, and can absorb the vibration of the main body 7012 and the metal bearing 702 body, thereby reducing the transmission of vibration in the fan part 301, thereby helping to reduce the noise generated by the air duct machine 100 and improving the user experience.

[0102] When installing the transmission shaft 501 and the bearing 702, the transmission shaft 501 is passed through the rubber sheath 7021, and then the transmission shaft 501 is rotatably connected to the main body of the metal bearing 702. This not only ensures that the main body of the metal bearing 702 supports the transmission shaft 501, and ensures that the transmission shaft 501 can rotate freely to transmit the output power of the drive motor 5, but also ensures that the rubber sheath 7021 is sleeved on the outside of the main body of the metal bearing 702 to absorb and reduce vibration.

[0103] like Figure 1-Figure 5 As shown, the duct machine 100 according to the embodiment of the utility model includes a casing 1, a heat exchanger 2 and a fan assembly 3.

[0104] The casing 11 is used to be placed vertically on the ground, and the casing 1 is provided with an air inlet and an air outlet, the heat exchanger 2 is arranged in the casing 1, and the fan assembly 3 is arranged in the casing 1 and is located on one side of the heat exchanger 2. The fan assembly 3 drives the air to enter the casing 1 from the air inlet, and the air exchanges heat with the heat exchanger 2 to form a heat exchange airflow, and then is driven by the fan assembly 3 to enter the room from the air outlet.

[0105] The casing 1 may have multiple air inlets, for example, one air inlet may be an air inlet for outdoor fresh air, and another air inlet may be an air inlet for indoor air. In addition, the fan assembly 3 may be located on one side of the heat exchanger 2 adjacent to the air outlet.

[0106] In this way, the duct machine 100 can selectively control outdoor fresh air and indoor air to enter the casing 1 through the air inlets through multiple air inlets, and the outdoor fresh air or indoor air can form a heat exchange airflow after heat exchange with the heat exchanger 2, and then be driven by the fan assembly 3 to be introduced into the room from the air outlet, thereby realizing indoor cooling or heating.

[0107] The fan assembly 3 includes a fan component 301 and an air duct component 302. The fan component 301 can provide power for the flow of the heat exchange airflow. The fan component 301 can limit the flow path of the heat exchange airflow in the casing 1, and can ensure that the heat exchange airflow flows along a preset path to achieve heat exchange of the heat exchange airflow in the air duct machine 100.

[0108] Furthermore, the fan component 301 is disposed in the air duct component 302 , so that the fan component 301 can directly drive air into the air duct machine 100 , thereby improving the working efficiency of the fan component 301 .

[0109] In the embodiment of the utility model, the fan component 301 includes a centrifugal fan 4 and a driving motor 5. The centrifugal fan 4 is a structure for driving air flow in the fan component 301. The centrifugal fan 4 is used in the duct air conditioner 100 to ensure the air supply volume of the duct air conditioner 100, thereby ensuring the user experience.

[0110] The driving motor 5 has a transmission shaft 501, which is in driving connection with the centrifugal fan 4. The transmission shaft 501 can transmit the output power of the driving motor 5 to the outside, so that the driving motor 5 can drive the centrifugal fan 4 to work, so that the centrifugal fan 4 generates enough air volume and enters the air duct 302.

[0111] The fan component 301 also includes a motor bracket 6, and the drive motor 5 is arranged on the motor bracket 6, so that the motor bracket 6 can provide a stable and reliable setting position for the drive motor 5, and can ensure that the structure of the drive motor 5 in the fan component 301 is fixed, so that the drive motor 5 can stably output power to the centrifugal fan 4 to ensure the normal operation of the centrifugal fan 4.

[0112] Furthermore, the motor bracket 6 is connected to one axial end of the air duct member 302, so that the drive motor 5 can be set in the air duct member 302 through the motor bracket 6, which can improve the structural integration of the fan assembly 3, and thus help to reduce the size of the duct machine 100, and can improve the product competitiveness of the embodiment of the utility model.

[0113] Furthermore, the fan component 301 further includes a bearing bracket 7 , which is connected to the other axial end of the air duct component 302 , thereby ensuring the structural reliability of the bearing 702 in the air duct component 302 .

[0114] The end of the transmission shaft 501 away from the driving motor 5 is connected to the bearing bracket 7. Such an arrangement allows the bearing bracket 7 to provide support for the end of the transmission shaft 501 away from the driving motor 5, thereby improving the structural reliability of the transmission shaft 501 in the air duct member 302.

[0115] Furthermore, the transmission shaft 501 extends axially along the air duct member 302 , and during the rotation of the transmission shaft 501 , the output power of the drive motor 5 is transmitted along the axial direction of the air duct member 302 from one end of the transmission shaft 501 connected to the drive motor 5 to the other end away from the drive motor 5 .

[0116] In the prior art, only one end of the transmission shaft 501 is connected to the drive motor 5, and the other end is unsupported. Therefore, during the rotation of the transmission shaft 501, the end of the transmission shaft 501 away from the drive motor 5 and the end connected to the transmission shaft 501 and the drive motor 5 may have an eccentricity problem. The eccentricity of the rotating shaft may cause abnormal vibration and noise, which may cause the duct machine 100 to emit unnecessary abnormal noise and reduce the user experience.

[0117] In the embodiment of the utility model, a bearing bracket 7 is added to the end of the transmission shaft 501 away from the driving motor 5, and the bearing bracket 7 is connected to the end of the air duct member 302 axially away from the motor bracket 6. This can enhance the support effect on the transmission shaft 501, and further solve the vibration and noise problems caused by the eccentricity of the transmission shaft 501, thereby improving the user experience.

[0118] Other structures and operations of the duct machine 100 according to the embodiment of the utility model are known to ordinary technicians in this field and will not be described in detail here.

[0119] The duct air conditioner 100 of the present invention performs a refrigeration cycle of the duct air conditioner 100 by using a compressor, a condenser, an expansion valve and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation, and supplies refrigerant to the conditioned and heat-exchanged air.

[0120] The compressor compresses the refrigerant gas in a high temperature and high pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0121] The expansion valve expands the high-temperature and high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a refrigeration effect by utilizing the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. In the entire cycle, the air duct unit 100 can adjust the temperature and humidity of the indoor space.

[0122] In the description of this specification, the description with reference to the terms "specific embodiment", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0123] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A duct machine, comprising: A casing, wherein the casing is formed with an air inlet and an air outlet on two sides opposite to each other; a heat exchanger, the heat exchanger being disposed in the housing and adjacent to the air inlet; A fan assembly, the fan assembly is arranged in the housing, the fan assembly is located on one side of the heat exchanger and adjacent to the air outlet, the fan assembly includes a fan part and an air duct part, the fan part is arranged in the air duct part, air enters the housing from the air inlet, and after heat exchange with the heat exchanger to form a heat exchange airflow, the heat exchange airflow enters the air duct part, and is driven by the fan part to accelerate the heat exchange airflow to enter the room from the air outlet; It is characterized in that The fan component comprises: Centrifugal fan; A driving motor, wherein the driving motor has a transmission shaft, and the transmission shaft is drivingly connected to the centrifugal fan; A motor bracket, the driving motor is arranged on the motor bracket, and the motor bracket is connected to one axial end of the air duct member; Wherein, the fan component also includes: The bearing bracket comprises a bracket member and a bearing, wherein the bearing is arranged in the bracket member, one end of the transmission shaft away from the driving motor is rotatably connected to the bearing, and the bracket member is connected to the other axial end of the air duct member.

2. The air duct machine according to claim 1, characterized in that: The bracket member includes a support foot portion and a main body portion, the bearing is arranged in the main body portion, the support foot portion is connected to the main body portion and extends on a side radially away from the main body portion, the end of the support foot portion away from the main body portion is connected to the air duct member, and the support foot portions are multiple, and the multiple support foot portions are spaced apart in the circumferential direction of the main body portion.

3. The air duct machine according to claim 2, characterized in that: The support foot is provided with a hollow hole, the hollow hole extends in the length direction of the support foot, and the support foot is provided with a first reinforcing rib in the hollow hole.

4. The air duct machine according to claim 2, characterized in that: The support foot is provided with a first positioning portion, and the air duct member is provided with a second positioning portion. One of the first positioning portion and the second positioning portion is a positioning hole, and the other is a positioning protrusion. The positioning protrusion is positioned and matched with the positioning hole.

5. The air duct machine according to claim 2, characterized in that: The bracket member includes a bracket body and an end cover, the bracket body includes the support foot portion and a main body portion, the main body portion is provided with a receiving groove, the bearing is arranged in the receiving groove, the receiving groove is open toward one side of the drive motor, and the end cover is detachably covered on the main body portion.

6. The air duct machine according to claim 5, characterized in that: The main body is provided with a first clamping portion on the outside corresponding to the accommodating groove, and the end cover is provided with a second clamping portion. One of the first clamping portion and the second clamping portion is a clamping groove, and the other is a clamping piece. The clamping groove and the clamping piece are clamped together.

7. The air duct machine according to claim 6, characterized in that: An elastic buckle is arranged in the slot, a clamping protrusion is arranged on the clamping piece, and the clamping piece can be rotatably entered into the slot so that the clamping protrusion is elastically clamped and matched with the elastic buckle.

8. The air duct machine according to claim 7, characterized in that: A snap-on cover is provided on the main body, the snap-on cover and the main body define the snap-on slot, the elastic buckle is provided on the snap-on cover, a limiting protrusion is provided on the end cover, the limiting protrusion cooperates with the axial limiting of the snap-on cover, a guiding inclined surface is provided on the limiting protrusion, and when the snap-on piece rotates to enter the snap-on slot, the guiding inclined surface cooperates with the guiding of the snap-on cover.

9. The air duct machine according to claim 1, characterized in that: The bearing comprises: Metal bearing body; A rubber sheath is sleeved on the outside of the metal bearing body, and the transmission shaft passes through the rubber sheath and is rotatably connected to the metal bearing body.

10. A duct machine, characterized in that: include: A casing, wherein the casing is formed with an air inlet and an air outlet on two sides opposite to each other; a heat exchanger, the heat exchanger being disposed in the housing and adjacent to the air inlet; A fan assembly, the fan assembly is arranged in the housing, the fan assembly is located on one side of the heat exchanger and adjacent to the air outlet, the fan assembly includes a fan part and an air duct part, the fan part is arranged in the air duct part, air enters the housing from the air inlet, and after heat exchange with the heat exchanger to form a heat exchange airflow, the heat exchange airflow enters the air duct part, and is driven by the fan part to accelerate the heat exchange airflow to enter the room from the air outlet; It is characterized in that The fan component comprises: Centrifugal fan; A driving motor, wherein the driving motor has a transmission shaft, and the transmission shaft is drivingly connected to the centrifugal fan; A motor bracket, the driving motor is arranged on the motor bracket, and the motor bracket is connected to one axial end of the air duct member; Wherein, the fan component also includes: A bearing bracket is connected to the other axial end of the air duct member, and one end of the transmission shaft away from the drive motor is rotatably connected to the bearing bracket.

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