Machine head and fan

Abstract

The utility model relates to the technical field of refrigeration, and discloses a machine head and a fan, and the machine head comprises a first shell, a second shell, a first fan and a second fan, the second shells are arranged on the two sides of the first shell, and air inlets are formed in the second shells; the air duct is fixedly connected into the first shell, and the air duct communicates with the air inlet and the air outlet; the fan blades are fixedly connected in the air duct; the first motor is fixedly connected in the air duct, connected with the fan blades and suitable for driving the fan blades to rotate; and the second motor is rotatably connected with the first shell and is suitable for driving the first shell to rotate. The air inlets are formed in the second shells on the two sides, the first motors are fixedly connected into the air channels, the first motors can drive the fan blades to rotate, air enters from the two sides, and the air inlet area is enlarged; by arranging the second motor, the second motor can drive the first shell to rotate, so that the air outlet area of the air outlet of the first shell can be changed in the rotating process, and the air outlet range is enlarged.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration, in particular to a machine head and a fan. Background Art

[0002] The cooling fan cools down by evaporating water. Its working principle is that the water pump sends water in the water tank to the wet curtain. The air passes through the wet curtain and carries moisture. The fan blades rotate and the air comes into contact with the water through the wet curtain and evaporates into wind to achieve a cooling effect.

[0003] Existing household cooling fans basically have the air intake from the back and the air outlet from the front. The wet curtain assembly can only be built in the rear net of the machine head, which results in a small air intake area and weak evaporation. The cooling fans used outdoors are generally large industrial fans, which are rectangular three-dimensional cooling fans. Although they can have two or three-sided air intake and matching cooling wet curtains, the air intake mainly needs to enter from the back, and the side only assists the air intake, resulting in the side wet curtains not having the desired effect and low cooling efficiency. In addition, the cooling fans on the market cannot simultaneously turn their heads up and down or left and right to discharge air, and the air outlet range is limited. Utility Model Content

[0004] In view of this, the utility model provides a machine head and a fan to solve the problems of small rear air intake area and limited air outlet range of the existing fan.

[0005] In a first aspect, the utility model provides a head for a fan comprising:

[0006] A first shell, wherein the first shell is provided with an air outlet;

[0007] A second shell, the second shell is arranged on both sides of the first shell, and an air inlet is arranged on the second shell;

[0008] An air duct, fixedly connected to the first shell, the air duct being in communication with the air inlet and the air outlet;

[0009] A fan blade is fixedly connected in the air duct;

[0010] A first motor, fixedly connected in the air duct and connected to the fan blade, suitable for driving the fan blade to rotate;

[0011] The second motor is rotatably connected to the first shell and is suitable for driving the first shell to rotate.

[0012] Beneficial effects: By setting air inlets on the second shells on both sides, the first motor is fixedly connected in the air duct, and the first motor can drive the fan blades to rotate, so that air can enter from both sides, thereby expanding the air inlet area; by setting the second motor, the second motor can drive the first shell to rotate, so that the air outlet area of ​​the first shell can change during the rotation process, thereby increasing the air outlet range.

[0013] In an optional embodiment, the fan blade is an axial flow fan blade.

[0014] Beneficial effect: By setting the fan blades as axial flow fan blades, air can be directly introduced from both sides, and the air volume is large and the air intake efficiency is high.

[0015] In an optional embodiment, the air duct includes:

[0016] An air duct body, wherein the air duct body is provided with an air outlet hole, and the air outlet hole is arranged corresponding to the air outlet;

[0017] The first bracket is arranged in the air duct body, and the first motor is fixedly connected to the first bracket.

[0018] Beneficial effect: By arranging a first bracket in the air duct body, the first bracket is fixedly connected to the first motor, the output shaft of the first motor can drive the axial flow fan blades to rotate, and the axial flow fan blades can be arranged inside the air duct, far away from the air inlets on both sides, to avoid the influence of other structures arranged at the air inlet on the fan blades. For example, the wet curtain device of the cold fan will be arranged on the air inlet side, so that the axial flow fan blades are far away from the wet curtains of the air inlet on both sides, and the influence of water vapor carried by the evaporation of water in the wet curtain on the first motor will also be greatly reduced, thereby achieving a more significant moisture-proof and humidity-proof effect of the whole machine.

[0019] In an optional implementation, at least one of the second shells is provided with a second bracket, the second bracket is fixedly connected to the second motor, and the output shaft of the second motor drives the first shell to rotate.

[0020] Beneficial effect: By arranging the second bracket in the second shell, the second motor can be easily assembled to realize the rotation of the first shell.

[0021] In an optional embodiment, the air duct includes:

[0022] The third bracket is fixed to a side of the air duct body close to the second bracket. The third bracket is provided with a mounting portion. A rotating sleeve is fixedly provided in the mounting portion. The output shaft of the second motor is fixedly connected to the rotating sleeve.

[0023] Beneficial effect: by arranging a third bracket on the side of the air duct body, a mounting portion is provided on the third bracket, a rotating sleeve is fixedly provided in the mounting portion, and the output shaft of the second motor is fixedly connected to the rotating sleeve, so that the second motor can drive the rotating shaft head to rotate, and then drive the rotation of the first shell fixedly connected to the air duct body, and the rotating sleeve can ensure that the second motor rotates relatively smoothly.

[0024] In an optional embodiment, a first limiting structure is provided on the air duct, and a second limiting structure cooperatively connected with the first limiting structure is provided on the first housing;

[0025] And / or, the air duct is fixedly connected to the first shell via a fastener;

[0026] And / or, the nose is a cylindrical structure;

[0027] And / or, an air inlet grille is provided at the air inlet;

[0028] And / or, an air outlet grille is provided at the air outlet.

[0029] Beneficial effect: By setting a first limiting structure and a second limiting structure that are matched and connected on the air duct and the first shell, when the air duct and the first shell are assembled, they can be initially positioned by the first limiting structure and the second limiting structure, and then fixedly connected by fasteners, which is more convenient to assemble.

[0030] In a second aspect, the utility model provides a fan, comprising: the above-mentioned head.

[0031] Beneficial effect: Since the fan includes the above-mentioned head, it has the same technical effect as the above-mentioned head, which will not be repeated here.

[0032] In an optional embodiment, the fan includes a wet curtain device, which is arranged in the second shell and located between the air duct and the air inlet.

[0033] In an optional embodiment, the fan includes:

[0034] A fuselage, wherein a water tank is provided in the fuselage, and the water tank is connected to one end of a water pipe;

[0035] A connecting bracket is arranged between the fuselage and the second shell, the water pipe is arranged in the connecting bracket, and the other end of the water pipe extends to the wet curtain device.

[0036] In an optional embodiment, the wet curtain device includes:

[0037] A wet curtain bracket, wherein the wet curtain bracket is a hollow structure, a wet curtain is arranged inside the wet curtain bracket, a water inlet is arranged above the wet curtain bracket, and a water outlet is arranged below the wet curtain bracket;

[0038] The water pipe comprises a water inlet pipe and a water outlet pipe, one end of the water inlet pipe and the water outlet pipe is connected to the water tank, the other end of the water inlet pipe is connected to the water inlet, and the other end of the water outlet pipe is connected to the water outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 This is a front view of a cooling fan according to an embodiment of the utility model;

[0041] Figure 2 for Figure 1 A first cross-sectional view of the cooling fan shown;

[0042] Figure 3 for Figure 1 A second cross-sectional view of the cooling fan shown;

[0043] Figure 4 It is a structural schematic diagram of the air duct body from the first perspective;

[0044] Figure 5 It is a structural schematic diagram of the air duct body from a second perspective;

[0045] Figure 6 This is a connection diagram of the wet curtain device and the water pipe.

[0046] Description of reference numerals:

[0047] 1-head; 2-body; 3-base; 4-connecting bracket; 5-first shell; 6-second shell; 601-air inlet; 7-air duct body; 701-air outlet; 8-fan blade; 9-first motor; 10-second motor; 11-water tank; 12-water inlet pipe; 13-wet curtain; 14-water inlet; 15-water outlet; 16-first bracket; 17-third bracket; 18-motor mounting seat; 19-limiting buckle; 20-screw hole; 21-water outlet pipe. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0049] Existing household cooling fans basically have the air intake from the back and the air outlet from the front. The wet curtain assembly can only be built in the rear net of the machine head, which results in a small air intake area and weak evaporation. The cooling fans used outdoors are generally large industrial fans. Although they can have two or three-sided air intake and matching cooling wet curtains, the air intake still mainly needs to enter from the back, and the side only assists the air intake, resulting in the side wet curtains not having the desired effect and low cooling efficiency. In addition, the cooling fans on the market cannot simultaneously turn their heads up and down or left and right to discharge air, and the air outlet range is limited.

[0050] Based on this situation, the applicant proposes a machine head and a fan using the machine head, which can take in air from the side and discharge air using axial flow blades, thereby achieving a larger air outlet range. The wet curtain device is arranged on both sides of the machine head, and the whole machine rotates with the machine head under the action of the motor, which can effectively improve the humidification and cooling effects.

[0051] Combine the following Figures 1 to 6 , describing an embodiment of the utility model.

[0052] According to an embodiment of the utility model, on the one hand, a head is provided for a fan, comprising: a first shell 5, the first shell 5 is provided with an air outlet; a second shell 6, the second shell 6 is arranged on both sides of the first shell 5, and the second shell 6 is provided with an air inlet 601; an air duct, fixedly connected to the first shell 5, the air duct is connected to the air inlet 601 and the air outlet; a fan blade 8, fixedly connected in the air duct; a first motor 9, fixedly connected in the air duct, connected to the fan blade 8, suitable for driving the fan blade 8 to rotate; a second motor 10, rotatably connected to the first shell 5, suitable for driving the first shell 5 to rotate.

[0053] By setting an air inlet 601 on the second shell 6 on both sides, the first motor 9 is fixedly connected in the air duct, and the first motor 9 can drive the fan blades 8 to rotate, so that air can enter from both sides, thereby expanding the air inlet area; by setting the second motor 10, the second motor 10 can drive the first shell 5 to rotate, so that the air outlet area of ​​the first shell 5 can change during the rotation process, thereby increasing the air outlet range.

[0054] The following is a specific description of the head in this embodiment being used for a cooling fan:

[0055] Wherein, the first motor 9 and the second motor 10 are both stepper motors. As a convertible implementation, the first motor 9 and the second motor 10 can also be servo motors, or the first motor 9 is a servo motor and the second motor 10 is a stepper motor, or other motors, which are not limited here.

[0056] The fan blade 8 in this embodiment is an axial flow fan blade. By setting the fan blade 8 as an axial flow fan blade, air can be directly introduced from both sides, and the air volume is large and the air intake efficiency is high. As a convertible embodiment, the fan blade 8 can also be a centrifugal fan blade.

[0057] like Figure 2 As shown, the cooling fan includes: a wet curtain device, which is arranged in the second shell 6 and is located between the air duct and the air inlet 601. The wet curtain device can humidify and cool the incoming air to improve the cooling efficiency of the cooling fan; a fuselage 2, in which a water tank 11 is arranged, and the water tank 11 is connected to one end of a water pipe; a connecting bracket 4, which is arranged between the fuselage 2 and the second shell 6, in which a water pipe is arranged, and the other end of the water pipe extends to the wet curtain device; a base 3, which is arranged below the fuselage 2.

[0058] The connection bracket 4 in this embodiment can be integrally formed with the fuselage 2. Of course, the connection bracket 4 and the fuselage 2 can also be separately arranged, and there is no excessive restriction here.

[0059] Among them, Figure 6 As shown, the wet curtain device includes: a wet curtain bracket, the wet curtain bracket is a hollow structure, a wet curtain 13 is arranged in the wet curtain bracket, a water inlet 14 is arranged above the wet curtain bracket, and a water outlet 15 is arranged below the wet curtain bracket; the water pipe includes a water inlet pipe 12 and a water outlet pipe 21, one end of the water inlet pipe 12 and the water outlet pipe 21 is connected to the water tank 11, the other end of the water inlet pipe 12 is connected to the water inlet 14, and the other end of the water outlet pipe 21 is connected to the water outlet 15.

[0060] In order to improve the humidification and cooling effect of the wet curtain 13, a water distribution tank can be provided above the wet curtain 13, the water distribution tank is connected to the water inlet 14, and the water distribution tank can evenly flow the incoming water to various positions of the wet curtain 13. As a convertible embodiment, it is also possible that no water distribution tank is provided, but a plurality of nozzles are evenly provided above the wet curtain 13 to achieve uniform water spraying to the wet curtain 13.

[0061] Since the cooling fan in this embodiment has air intake on both sides, the cooling fan has two second shells 6, each of which is provided with an air inlet 601, and a wet curtain device is provided in each second shell 6. The wet curtain bracket is fixed to the connecting bracket 4 by screws, and the position remains unchanged.

[0062] The wet curtain devices are located on both sides of the machine head 1, and the water tank 11 is located in the middle of the machine body 2. During humidification, the water in the water tank 11 is pumped into the wet curtain devices on both sides by a water pump, and the water evaporates into part of water vapor and cools the flowing air. The air is cooled by the air inlets 601 on both sides and then blown out from the air outlet to achieve the effect of cooling and humidification. The excess water enters the water outlet pipe 21 from the water outlet 15 at the lower end of the wet curtain device, and the water passing through the wet curtain 13 is returned to the water tank 11 to form a water flow circulation.

[0063] like Figure 4 As shown, the air duct includes: an air duct body 7, on which an air outlet hole 701 is provided, and the air outlet hole 701 is provided corresponding to the air outlet; a first bracket 16, which is provided in the air duct body 7, and the first motor 9 is fixedly connected to the first bracket 16. By providing the first bracket 16 in the air duct body 7, and the first motor 9 is fixedly connected to the first bracket 16, the output shaft of the first motor 9 can drive the axial flow fan blade to rotate, and the axial flow fan blade can be provided inside the air duct, far away from the air inlet 601 on both sides, so that the axial flow fan blade is far away from the wet curtain 13 on both sides of the air inlet, and the influence of the water vapor carried by the evaporation of water in the wet curtain 13 on the first motor 9 will also be greatly reduced, thereby achieving a more significant effect of moisture and humidity prevention of the whole machine.

[0064] Specifically, a motor mounting seat 18 is provided on the first bracket 16 , and the first motor 9 is fixedly connected to the motor mounting seat 18 .

[0065] In this embodiment, the second motor 10 is provided as one, so a second bracket can be provided in one of the two second housings 6, and the second bracket is fixedly connected to the second motor 10, and the output shaft of the second motor 10 drives the first housing 5 to rotate. Figure 2 As shown, a second bracket is provided in the second housing 6 on the left side, and a second bracket is not required in the second housing 6 on the right side. By providing a second bracket in one second housing 6, the second motor 10 can be easily assembled to realize the rotation of the first housing 5. As a convertible embodiment, two second motors 10 can be provided, and second brackets are provided in the two second housings 6 respectively, and a second motor 10 is fixedly connected to each second bracket, and the two second motors 10 drive the first housing 5 to rotate together.

[0066] Since the wet curtain bracket is provided in the second housing 6, the second bracket can be a wet curtain bracket, so that the overall structure of the cooling fan is simpler. Of course, it can also be that the second bracket and the wet curtain bracket are two brackets independently provided, and no excessive restrictions are made here.

[0067] Specifically, the second bracket is screwed to the second motor 10. As a convertible implementation, the second bracket can also be clamped to the second motor 10.

[0068] like Figure 4As shown, the air duct includes: a third bracket 17, which is fixed to the side of the air duct body 7 close to the second bracket, a mounting portion is provided on the third bracket 17, a rotating sleeve is fixedly provided in the mounting portion, and the output shaft of the second motor 10 is fixedly connected to the rotating sleeve. Specifically, the mounting portion is a mounting hole. By arranging the third bracket 17 on the side of the air duct body 7, a mounting portion is provided on the third bracket 17, a rotating sleeve is fixedly provided in the mounting portion, and the output shaft of the second motor 10 is fixedly connected to the rotating sleeve, so that the second motor 10 can drive the rotating sleeve to rotate, and then drive the rotation of the first shell 5 fixedly connected to the air duct body 7, and the rotating sleeve can ensure that the second motor 10 rotates relatively smoothly. As a convertible embodiment, it is also possible that the mounting portion is a mounting groove.

[0069] Wherein, the rotating sleeve is connected with the mounting portion by screws. As a convertible embodiment, it can also be that the rotating sleeve is clamped with the mounting portion, or is connected together by gluing.

[0070] like Figure 5 As shown, the air duct body 7 is provided with a first limiting structure, and the first housing 5 is provided with a second limiting structure that cooperates with the first limiting structure; the air duct body 7 and the first housing 5 are fixedly connected by fasteners. By providing the first limiting structure and the second limiting structure that cooperate with each other on the air duct body 7 and the first housing 5, when assembling the air duct and the first housing 5, the first limiting structure and the second limiting structure can be used for initial positioning, and then the fasteners can be used for fixed connection, which is more convenient for assembly.

[0071] Specifically, the first limiting structure is a limiting protrusion, the second limiting structure is a limiting buckle 19, the fastener is a screw, and the air duct body 7 and the first shell 5 are respectively provided with matching screw holes 20, and the screws are inserted into the screw holes 20 to achieve a fastening connection between the air duct body 7 and the first shell 5. Figure 5 As shown, there is one limit buckle 19, and three screw holes 20 are provided on the air duct body 7. Of course, the specific number of the limit buckle 19 and the screw hole 20 can be specifically set according to actual needs, and there is no excessive restriction here.

[0072] like Figure 1 As shown, the head 1 is a cylindrical structure with a beautiful appearance. An air inlet grille is provided at the air inlet 601, and an air outlet grille is provided at the air outlet. As a convertible embodiment, the head 1 can also be a rectangular parallelepiped structure, a cube structure, or a spherical structure.

[0073] The assembly between the various structures on the head 1 is as follows: the air duct is installed on the first shell 5, and the first shell 5 is provided with a limit buckle 19 connected to the air duct body 7, and the first shell 5 is clamped and fixed on the air duct body 7. The air duct body 7 is provided with a mounting position for the first motor 9, that is, the first bracket 16. The first motor 9 is installed on the first bracket 16 on the air duct body 7 and fixed with screws. The output shaft of the first motor 9 cooperates with the central hole of the axial flow fan blade to drive the axial flow fan blade to rotate and blow the wind out from the air outlet grille. One side of the air duct body 7, as shown in FIG. Figure 2 The left side shown in the figure is also provided with a mounting hole for a rotating sleeve. After the second motor 10 is installed and fixed on the rotating sleeve, the rotating sleeve is aligned with the mounting hole in the air duct body 7, and the second motor 10 is assembled on the second bracket in the second shell 6, so that the entire air duct including the first motor 9 inside can rotate together with the first shell 5.

[0074] According to an embodiment of the present utility model, on the other hand, a fan is provided, comprising the above-mentioned head 1.

[0075] Specifically, the fan in this embodiment is a cooling fan. As a convertible implementation, the fan can also be a common fan without a wet curtain device.

[0076] The cold fan in this embodiment improves the rear air intake of the traditional axial flow fan blades to the air intake on both sides, thereby improving the air intake efficiency, and the wet curtain device of the cold fan is improved to humidify on both sides of the air duct, breaking the traditional cold fan's mainly rear air duct humidification form, which can significantly improve the humidification efficiency.

[0077] When the cooling fan is working, the first motor 9 drives the axial flow blades to rotate. The axial flow blades are characterized by being able to directly take in air from both sides and discharge air from the front, with large air volume and high air supply efficiency. When humidification is turned on, the water pump pumps the water in the water tank 11 to the wet curtain devices on both sides, and then distributes the water evenly on the wet curtain 13 through the water distribution tank. At this time, the air enters from both sides of the wet curtain device and passes through the wet curtain 13 before blowing out cold air. The wind carries the water vapor on the wet curtain 13 to act on the human body to achieve the purpose of humidification and cooling. Since there are wet curtain devices on both sides, the evaporation rate is higher and the cooling effect is better.

[0078] Since the first shell 5 can rotate relative to the second shell 6, when the first shell 5 of the cooling fan rotates, the air outlet thereon can be directed to different positions, thereby achieving air outlets toward different positions and expanding the air outlet range. Users can adjust the position of the air outlet according to actual needs, thereby improving the user experience.

[0079] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A head for a fan, characterized in that: include: A first shell (5), wherein the first shell (5) is provided with an air outlet; A second shell (6), the second shell (6) being arranged on both sides of the first shell (5), and the second shell (6) being provided with an air inlet (601); An air duct, fixedly connected to the first shell (5), the air duct being in communication with the air inlet (601) and the air outlet; A fan blade (8) is fixedly connected in the air duct; A first motor (9) is fixedly connected in the air duct and connected to the fan blade (8), and is suitable for driving the fan blade (8) to rotate; The second motor (10) is rotatably connected to the first housing (5) and is suitable for driving the first housing (5) to rotate.

2. The head according to claim 1, characterized in that: The fan blade (8) is an axial flow fan blade.

3. The head according to claim 2, characterized in that: The air duct comprises: An air duct body (7), wherein the air duct body (7) is provided with an air outlet hole (701), and the air outlet hole (701) is arranged corresponding to the air outlet; The first bracket (16) is arranged in the air duct body (7), and the first motor (9) is fixedly connected to the first bracket (16).

4. The head according to claim 3, characterized in that: At least one of the second shells (6) is provided with a second bracket, to which the second motor (10) is fixedly connected, and an output shaft of the second motor (10) drives the first shell (5) to rotate.

5. The handpiece according to claim 4, characterized in that: The air duct comprises: The third bracket (17) is fixed to a side of the air duct body (7) close to the second bracket. The third bracket (17) is provided with a mounting portion, a rotating sleeve is fixedly provided in the mounting portion, and the output shaft of the second motor (10) is fixedly connected to the rotating sleeve.

6. The head according to any one of claims 1 to 5, characterized in that: The air duct is provided with a first limiting structure, and the first housing (5) is provided with a second limiting structure that cooperates with the first limiting structure; And / or, the air duct is fixedly connected to the first shell (5) via a fastener; And / or, the nose (1) is of cylindrical structure; And / or, an air inlet grille is provided at the air inlet (601); And / or, an air outlet grille is provided at the air outlet.

7. A fan, characterized in that: include: The head according to any one of claims 1 to 6.

8. The fan according to claim 7, characterized in that: The fan comprises a wet curtain device, which is arranged in the second shell (6) and located between the air duct and the air inlet (601).

9. The fan according to claim 8, characterized in that The fan comprises: A fuselage (2), wherein a water tank (11) is provided in the fuselage (2), and the water tank (11) is connected to one end of a water pipe; A connecting bracket (4) is arranged between the machine body (2) and the second shell (6); the water pipe is arranged inside the connecting bracket (4), and the other end of the water pipe extends to the wet curtain device.

10. The fan according to claim 9, characterized in that The wet curtain device comprises: A wet curtain bracket, wherein the wet curtain bracket is a hollow structure, a wet curtain (13) is arranged inside the wet curtain bracket, a water inlet (14) is arranged above the wet curtain bracket, and a water outlet (15) is arranged below the wet curtain bracket; The water pipe comprises a water inlet pipe (12) and a water outlet pipe (21); one end of the water inlet pipe (12) and the water outlet pipe (21) are connected to the water tank (11); the other end of the water inlet pipe (12) is connected to the water inlet (14); and the other end of the water outlet pipe (21) is connected to the water outlet (15).

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