Fan mounting structure and dehumidifier

Abstract

The utility model discloses a fan mounting structure and dehumidifier, fan mounting structure includes frame and fan subassembly, and frame is equipped with motor mounting bracket, and fan subassembly includes motor module and the impeller of output shaft connection with motor module, and motor module installs to motor mounting bracket, and the impeller and motor module distribute in proper order along the conveying direction of air, owing to motor module is located the air outlet side of impeller, and the air intake of fan subassembly is less, and the resistance of air suction is reduced, and it is favorable to improve the air exchange efficiency of dehumidifier, and then improve the dehumidification efficiency of dehumidifier.

Description

Technical Field

[0001] This utility model relates to the field of dehumidifier technology, and in particular to a fan installation structure and a dehumidifier. Background Technology

[0002] In traditional dehumidifiers, the fan motor is often positioned at the bottom, meaning the motor is fixed to the bottom of the unit (e.g., above the drip tray) via a mounting bracket. However, this method has a significant drawback: the mounting bracket and motor are located on the air intake / air intake side of the impeller (as in patent document CN112361475B), which easily leads to increased airflow resistance and reduced airflow. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a fan mounting structure.

[0004] This utility model also proposes a dehumidifier.

[0005] According to a first aspect of the present invention, a fan mounting structure includes a frame and a fan assembly. The frame is equipped with a motor mounting bracket. The fan assembly includes a motor module and an impeller connected to the output shaft of the motor module. The motor module is mounted to the motor mounting bracket. The impeller and the motor module are distributed sequentially along the air conveying direction.

[0006] The fan installation structure according to the embodiment of this utility model has at least the following beneficial effects: the motor module is located on the air outlet side of the impeller, which has less impact on the air intake of the fan assembly, reduces the resistance to air intake, and helps to improve the air exchange efficiency of the dehumidifier, thereby improving the dehumidification efficiency of the dehumidifier.

[0007] According to some embodiments of the present invention, the upper end of the frame is provided with an impeller cavity, the lower part of the impeller cavity is provided with an air inlet, the upper part of the impeller cavity is provided with an air outlet, the motor module is mounted on the upper part or above the impeller cavity through the motor mounting bracket, and the impeller is located in the impeller cavity.

[0008] According to some embodiments of the present invention, the motor mounting bracket includes an outer frame, a mounting base located within the outer frame, and at least one connecting arm connecting the outer frame and the mounting base. The outer frame is mounted to the air outlet, and the motor module is mounted to the mounting base.

[0009] According to some embodiments of the present invention, a positioning structure is provided between the outer frame and the air inlet. The positioning structure includes a protruding part and a recessed part that cooperate with each other. One of the protruding part and the recessed part is provided on the outer edge of the air outlet, and the other is provided on the outer frame.

[0010] According to some embodiments of the present invention, the outer frame is installed to the outer edge of the air outlet by a snap-fit ​​mechanism.

[0011] According to some embodiments of the present invention, the lower part of the impeller extends downward and is provided with an annular flange, the edge of the air inlet is provided with an annular groove, the annular groove opens upward, and the annular flange is inserted into the annular groove.

[0012] According to some embodiments of the present invention, there is a gap between the groove wall of the annular groove and the annular flange.

[0013] According to some embodiments of the present invention, the lower end inner wall of the impeller cavity is provided with an inwardly protruding curved transition portion, and the lower part of the impeller is provided with an annular portion that matches the curved transition portion.

[0014] According to some embodiments of the present invention, there is a gap between the curved transition portion and the annular portion.

[0015] According to some embodiments of this utility model, the impeller is a centrifugal fan impeller, and the motor module is located at a position corresponding to the middle of the impeller.

[0016] The dehumidifier according to a second aspect of the present invention includes a fan mounting structure according to any of the first aspects of the present invention described above.

[0017] The dehumidifier according to the embodiments of this utility model has at least the following beneficial effects: it has the advantages of high air exchange efficiency and high dehumidification efficiency.

[0018] According to some embodiments of the present invention, it further includes a compressor assembly and a heat exchanger assembly connected to the compressor assembly. The fan assembly is located on the upper part of the frame, and the heat exchanger assembly has a U-shaped structure in the vertical direction, so that the heat exchanger assembly forms three dehumidification air inlet surfaces on the lower part of the frame.

[0019] According to some embodiments of the present invention, the frame includes a base, and the base is provided with a water collection tank connected to the heat exchanger assembly. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the structure of the dehumidifier according to an embodiment of the present invention;

[0022] Figure 2 This is an exploded view of the dehumidifier according to an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the assembly of the frame, fan assembly, compressor assembly and heat exchanger assembly according to an embodiment of the present utility model;

[0024] Figure 4 This is a structural diagram of the frame, fan assembly, compressor assembly and heat exchanger assembly of this utility model embodiment during disassembly;

[0025] Figure 5 This is a cross-sectional schematic diagram of the installation position of the fan assembly in an embodiment of this utility model.

[0026] Figure label:

[0027] Frame 100, impeller cavity 101, curved transition section 101a, air inlet 102, air outlet 103, annular groove 104, protrusion 105, motor mounting bracket 110, outer frame 111, recess 111a, snap-fit ​​mechanism 111b, mounting base 112, connecting arm 113, base 120, water collection tank 121;

[0028] Motor module 200;

[0029] Impeller 300, annular flange 310, circular part 320;

[0030] Compressor assembly 400, heat exchanger assembly 500, dehumidification air inlet surface 501, electrical box 600, housing 700, air inlet mesh 701, fan assembly 900. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0035] The following is for reference. Figures 1 to 5 This invention describes a fan mounting structure and a dehumidifier according to an embodiment of the present invention.

[0036] like Figures 3 to 5 As shown, the fan mounting structure according to an embodiment of the present utility model includes a frame 100 and a fan assembly 900. The frame 100 is equipped with a motor mounting bracket 110. The fan assembly 900 includes a motor module 200 and an impeller 300 connected to the output shaft of the motor module 200. The motor module 200 is mounted to the motor mounting bracket 110. The impeller 300 and the motor module 200 are distributed sequentially along the air conveying direction.

[0037] With the above settings, the motor module 200 is located on the air outlet side of the impeller 300, which has less impact on the air intake of the fan assembly 900, reduces the resistance to air intake, and helps to improve the air exchange efficiency of the dehumidifier, thereby improving the dehumidification efficiency of the dehumidifier.

[0038] Specifically, the dehumidifier includes a frame 100, a fan assembly 900, a compressor assembly, and a heat exchanger assembly connected to the compressor assembly. The fan assembly 900 is located at the air outlet of the dehumidifier. External air is drawn into the dehumidifier from its casing, dehumidified by the heat exchanger assembly to form dry air, and then discharged from the dehumidifier through the fan assembly 900. By placing the motor module 200 on the air outlet side of the impeller 300, sufficient air intake is ensured for the dehumidifier.

[0039] In some embodiments of this utility model, the fan assembly 900 is located at the air outlet of the dehumidifier, so that the air inlet side of the impeller faces the inside of the dehumidifier. The size of the air inlet opening is limited by the internal structure of the dehumidifier. By placing the motor module 200 on the air outlet side of the impeller 300, the influence on the size of the air inlet opening of the impeller can be reduced, so that the impeller 300 has sufficient air intake.

[0040] It is understood that in some embodiments of this utility model, the fan assembly 900 can be set at the air inlet of the dehumidifier. By setting the motor module 200 on the air outlet side of the impeller 300, the resistance to air intake can be reduced, and the air intake volume of the fan assembly 900 is less affected.

[0041] It should be noted that the fan assembly generally draws in air from the inlet and then diffuses it outward from the outlet. Therefore, placing the motor module 200 on the outlet side of the impeller 300 has little impact on the air output of the fan assembly.

[0042] In some embodiments of this utility model, the impeller 300 is a centrifugal fan impeller, and the motor module 200 is located at a position corresponding to the middle of the impeller 300. The centrifugal fan impeller draws air from the middle of the air inlet and then diffuses the air out from the air outlet. The motor module 200 is located at a position corresponding to the middle of the impeller 300, which has little impact on the air outlet of the fan assembly.

[0043] Specifically, the centrifugal fan impeller draws air in from the center and disperses it centrifugally around the perimeter. If the motor module 200 is located at the center of the air inlet side, it will have a significant impact on the air intake volume. However, in this invention, the motor module 200 is located on the air outlet side of the impeller 300 and at a position corresponding to the center of the impeller 300, which has less impact on the air intake volume of the fan assembly 900 and reduces the resistance to air intake.

[0044] like Figures 3 to 5 As shown, in some embodiments of this utility model, the upper end of the frame 100 is provided with an impeller cavity 101, the lower part of the impeller cavity 101 is provided with an air inlet 102, and the upper part of the impeller cavity 101 is provided with an air outlet 103. The motor module 200 is installed on the upper part or above the impeller cavity 101 through the motor mounting bracket 110. The impeller 300 is located in the impeller cavity 101 and below the motor module 200, so that the motor module 200 can be located on the air outlet side of the impeller 300 to ensure the air intake of the fan assembly 900.

[0045] Specifically, the air outlet of the dehumidifier is located at the upper part of the frame 100, that is, the dehumidifier adopts an upper air outlet structure. The impeller cavity 101 is set at the upper end of the frame 100 to facilitate the installation of the impeller 300 and the motor module 200, and to facilitate the reasonable setting of the air duct, thereby improving the air exchange efficiency of the dehumidifier.

[0046] It is understood that in some embodiments of this utility model, the impeller cavity 101 may not be configured, and the air duct may be formed directly using the outer casing of the dehumidifier, which will not be described in detail here.

[0047] like Figure 4 As shown, in some embodiments of this utility model, the motor mounting bracket 110 includes an outer frame 111, a mounting base 112 located inside the outer frame 111, and at least one connecting arm 113 connecting the outer frame 111 and the mounting base 112. The outer frame 111 is installed at the air outlet 103, and the motor module 200 is installed at the mounting base 112, thereby placing the motor module 200 at the air outlet 103 and reducing the air outlet resistance by setting the connecting arm 113.

[0048] Specifically, four connecting arms 113 are set up in a ring with evenly distributed intervals to ensure sufficient support for the motor module 200.

[0049] Of course, in the specific implementation process, the connecting arm 113 can also be set to one, two, three, five or more, which will not be described in detail here.

[0050] In some embodiments of this utility model, a positioning structure is provided between the outer frame 111 and the air inlet 102. The positioning structure includes a protrusion 105 and a recess 111a that cooperate with each other. One of the protrusion 105 and the recess 111a is disposed on the outer edge of the air outlet 103 (at the upper end face of the impeller cavity 101), and the other is disposed on the outer frame 111. Through the cooperation of the protrusion 105 and the recess 111a, the positioning of the outer frame 111 and the air outlet 103 is realized, thereby improving the installation accuracy and reliability.

[0051] Specifically, such as Figure 5 As shown, the recessed part 111a is located at the bottom of the outer frame 111 and is recessed upwards, while the protruding part 105 is located at the outer edge of the air outlet 103 (at the upper end face of the impeller cavity 101) and protrudes upwards. During assembly, the protruding part 105 is inserted into the recessed part 111a, thereby improving the installation accuracy.

[0052] It is understood that in some embodiments of this utility model, the recessed portion 111a may be provided on the outer edge of the air outlet 103, the bottom of the outer frame 111 may be recessed upwards, and the protruding portion 105 may be provided on the bottom of the outer frame 111, which can also achieve the positioning effect.

[0053] like Figure 4 As shown, in some embodiments of this utility model, the outer frame 111 is installed to the outer edge of the air outlet 103 (the upper end face of the impeller cavity 101) by a snap-fit ​​mechanism 111b, which makes assembly convenient.

[0054] In some embodiments of this utility model, the outer frame 111 is provided with a hook, and the outer edge of the air outlet 103 is provided with a buckle hole. The outer frame 111 and the frame 100 are assembled by the cooperation of the hook and the buckle hole.

[0055] It is understood that, in some embodiments of this utility model, the connection structure between the outer frame 111 and the frame 100 may also be screw connection, adhesive bonding or ultrasonic welding.

[0056] like Figure 5 As shown, in some embodiments of this utility model, the lower part of the impeller 300 is provided with an annular flange 310 extending downward, and the edge of the air inlet 102 is provided with an annular groove 104. The annular groove 104 opens upward, and the annular flange 310 is inserted into the annular groove 104. When the impeller 300 rotates, the annular flange 310 and the annular groove 104 cooperate with each other to make the rotation of the impeller 300 more stable.

[0057] Specifically, in this utility model, the motor module 200 is located above the impeller 300. The output shaft of the motor module 200 is generally connected to the upper or middle part of the impeller 300 (an excessively long output shaft is prone to errors). An annular flange 310 extends downward from the lower part of the impeller 300 and cooperates with the annular groove 104 on the edge of the air inlet 102 at the lower end of the impeller cavity 101 to stabilize the lower part of the impeller 300 and improve the rotational stability of the impeller 300.

[0058] In some embodiments of this utility model, the annular groove 104 is located at the edge of the air inlet 102 (on the inner wall of the lower part of the impeller cavity 101), and the annular flange 310 is located at a position away from the center of the impeller 300, that is, close to the outer edge of the impeller 30. The annular flange 310 and the annular groove 104 cooperate with each other to improve the stability of the outer edge of the impeller 30 when it rotates.

[0059] Specifically, the output shaft of the motor module 200 is connected to the center of the impeller 300. Due to the coaxiality error caused by processing or assembly, it will be amplified at the outer edge of the impeller 300, resulting in a large swing amplitude at the outer edge of the impeller 300, which leads to poor stability or high noise of the impeller 300. In this utility model, the stability of the outer edge of the impeller 30 can be improved by the cooperation between the annular flange 310 and the annular groove 104.

[0060] like Figure 5 As shown, in some embodiments of this utility model, there is a gap between the groove wall of the annular groove 104 and the annular flange 310. When the impeller 300 rotates, a relatively stable air pressure / airflow will be formed between the groove wall of the annular groove 104 and the annular flange 310, so as to stabilize the impeller 300 and avoid direct contact between the annular groove 104 and the annular flange 310 to generate frictional resistance and reduce the speed of the impeller 300.

[0061] like Figure 5 As shown, in some embodiments of this utility model, the lower inner wall of the impeller cavity 101 is provided with an inwardly protruding curved transition portion 101a, and the lower part of the impeller 300 is provided with a circular ring portion 320 that matches the curved transition portion 101a. The stability of the impeller 300 rotation is improved by the cooperation between the curved transition portion 101a and the circular ring portion 320.

[0062] In some embodiments of this utility model, the impeller 300 is a centrifugal fan impeller, and the motor module 200 is located at a position corresponding to the middle of the impeller 300. The centrifugal fan impeller draws air from the middle of the air inlet and then diffuses the air out from the air outlet. The impeller cavity 101 has a layout that is larger at the top and smaller at the bottom to improve the efficiency of air intake and exhaust. The curved transition part 101a can make the inner wall of the impeller cavity 101, which is larger at the top and smaller at the bottom, transition smoothly and reduce airflow resistance.

[0063] like Figure 5 As shown, in some embodiments of this utility model, there is a gap between the curved transition portion 101a and the annular portion 320. When the impeller 300 rotates, a relatively stable air pressure / airflow will be formed between the curved transition portion 101a and the annular portion 320, thereby stabilizing the impeller 300 and avoiding direct contact between the curved transition portion 101a and the annular portion 320 to generate frictional resistance and reduce the speed of the impeller 300.

[0064] Reference Figure 1 and Figure 2 The dehumidifier according to the second aspect of the present invention includes the fan mounting structure of any of the first aspects of the present invention, and has the advantages of high air exchange efficiency and high dehumidification efficiency.

[0065] like Figure 2 As shown, in some embodiments of this utility model, the dehumidifier further includes a compressor assembly 400 and a heat exchanger assembly 500 connected to the compressor assembly 400. The fan assembly is located on the upper part of the frame 100. The heat exchanger assembly 500 has a U-shaped structure in the vertical direction, so that the heat exchanger assembly 500 forms three dehumidification air inlet surfaces 501 on the lower part of the frame 100, thereby improving the air inlet efficiency and thus improving the dehumidification efficiency.

[0066] Specifically, such as Figure 1 , Figure 2 As shown, the dehumidifier's outer casing 700 has air inlet mesh 701 on three sides, corresponding to the U-shaped heat exchanger assembly 500, forming a three-sided air inlet structure to improve heat exchange efficiency. An electrical box 600 is set at the notch of the U-shaped structure of the heat exchanger assembly 500 for configuring the power supply or control components. The compressor assembly 400 is located in the middle of the U-shaped heat exchanger assembly 500, making the overall structure of the dehumidifier reasonable, the air duct unobstructed, and the dehumidification efficiency high.

[0067] In some embodiments of this utility model, the heat exchanger assembly 500 includes an evaporator and a condenser, wherein the evaporator and the condenser are distributed sequentially along the air inlet direction. That is, in the U-shaped heat exchanger assembly 500, the evaporator is located on the outer side and the condenser is located on the inner side. The evaporator can condense the moisture in the air to achieve the dehumidification effect, and the condenser can heat the air cooled by the evaporator to avoid the output air temperature being too low.

[0068] like Figure 4 As shown, in some embodiments of the present invention, the frame 100 includes a base 120, and the base 120 is provided with a water collection tank 121 connected to the heat exchanger assembly 500 to collect the water generated by the heat exchanger assembly 500.

[0069] Specifically, the water collection tank 121 has a U-shaped structure corresponding to the heat exchanger assembly 500 to prevent water from flowing to other locations and improve the efficiency of condensate collection.

[0070] Of course, this invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A fan mounting structure characterized by comprising: include: A frame (100) is provided with a motor mounting bracket (110); A fan assembly (900) includes a motor module (200) and an impeller (300) connected to the output shaft of the motor module (200). The motor module (200) is mounted on the motor mounting bracket (110). The impeller (300) and the motor module (200) are distributed sequentially along the air conveying direction.

2. The fan installation structure according to claim 1, characterized in that, The upper end of the frame (100) is provided with an impeller cavity (101), the lower part of the impeller cavity (101) is provided with an air inlet (102), the upper part of the impeller cavity (101) is provided with an air outlet (103), the motor module (200) is installed on the upper part or above the impeller cavity (101) through the motor mounting bracket (110), and the impeller (300) is located in the impeller cavity (101).

3. The fan installation structure according to claim 2, characterized in that, The motor mounting bracket (110) includes an outer frame (111), a mounting base (112) located inside the outer frame (111), and at least one connecting arm (113) connecting the outer frame (111) and the mounting base (112). The outer frame (111) is installed at the air outlet (103), and the motor module (200) is installed at the mounting base (112).

4. The fan installation structure according to claim 3, characterized in that, A positioning structure is provided between the outer frame (111) and the air inlet (102). The positioning structure includes a protrusion (105) and a recess (111a) that cooperate with each other. One of the protrusion (105) and the recess (111a) is provided on the outer edge of the air outlet (103), and the other is provided on the outer frame (111).

5. The fan installation structure according to claim 3 or 4, characterized in that, The outer frame (111) is installed to the outer edge of the air outlet (103) via a snap-fit ​​mechanism (111b).

6. The fan installation structure according to claim 2, characterized in that, The impeller (300) has an annular flange (310) extending downward at its lower part, and an annular groove (104) is provided at the edge of the air inlet (102). The annular groove (104) opens upward, and the annular flange (310) is inserted into the annular groove (104). There is a gap between the groove wall of the annular groove (104) and the annular flange (310).

7. The fan installation structure according to claim 2, characterized in that, The lower inner wall of the impeller cavity (101) is provided with an inwardly protruding curved transition portion (101a), and the lower part of the impeller (300) is provided with a circular ring portion (320) that matches the curved transition portion (101a). There is a gap between the curved transition portion (101a) and the circular ring portion (320).

8. The fan installation structure according to claim 1, characterized in that, The impeller (300) is a centrifugal fan impeller, and the motor module (200) is located at a position corresponding to the middle of the impeller (300).

9. A dehumidifier, characterized by include: The fan mounting structure as described in any one of claims 1 to 8.

10. The dehumidifier according to claim 9, characterized in that, It also includes a compressor assembly (400) and a heat exchanger assembly (500) connected to the compressor assembly (400). The fan assembly is located on the upper part of the frame (100). The heat exchanger assembly (500) has a U-shaped structure in the vertical direction, so that the heat exchanger assembly (500) forms three dehumidification air inlet surfaces (501) on the lower part of the frame (100).

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