Tower fan

Abstract

The tower fan comprises an air channel, a cross-flow wind wheel and a flow divider, the cross-flow wind wheel is arranged in the air channel, the flow divider is arranged on an air outlet section of the air channel so that the air outlet section of the air channel can be divided into a left side flow channel and a right side flow channel, a left side air outlet is formed in the tail end of the left side flow channel, and a right side air outlet is formed in the tail end of the right side flow channel. According to the tower fan, the flow divider is arranged on the air outlet section of the air duct, so that surrounding air is formed, the flowing uniformity of air flow finally exhausted out of the tower fan is improved, the air outlet skew phenomenon caused by the cross-flow wind wheel is avoided, and the air outlet comfort of the tower fan is improved.

Description

Technical Field

[0001] This application relates to the technical field of air supply devices, and particularly to a tower fan. Background Art

[0002] The tower fan includes an air duct and a cross-flow impeller disposed in the air duct. By rotating the cross-flow impeller in the air duct, the air flow is driven to flow out. It is precisely because the tower fan uses a cross-flow impeller that the characteristics of the cross-flow impeller result in poor air outlet effect of the tower fan, and the comfort of use needs to be improved. Summary of the Invention

[0003] This application aims to solve at least one of the technical problems in the related art to some extent. For this purpose, this application provides a tower fan.

[0004] To achieve the above object, this application discloses a tower fan, which includes:

[0005] An air duct;

[0006] A cross-flow impeller, which is disposed in the air duct; and

[0007] A diverter, which is disposed in the air outlet section of the air duct to divide the left flow channel and the right flow channel in the air outlet section of the air duct. The left air outlet is formed at the end of the left flow channel, and the right air outlet is formed at the end of the right flow channel.

[0008] In some embodiments of this application, the diverter has a diversion starting point. The distance H between the diversion starting point and the center of the cross-flow impeller in the front-rear direction satisfies H = 1.3r to 1.8r, where r is the radius of the cross-flow impeller.

[0009] In some embodiments of this application, the diverter has a diversion starting point. In the left-right direction, the distance between the diversion starting point and the left side wall of the air outlet section is a1, and the distance between the diversion starting point and the right side wall of the air outlet section is a2. The width of the left air outlet is b1, and the width of the right air outlet is b2, satisfying (a1 / a2) = (0.9 to 1.1) * (b1 / b2).

[0010] In some embodiments of this application, the diverter has a diversion starting point. At least part of the left flow channel inclines forward to the left from the diversion starting point, and at least part of the right flow channel inclines forward to the right from the diversion starting point;

[0011] The tower fan includes a left guide vane and a right guide vane. The left guide vane is disposed at the left air outlet and extends in the front-rear direction, and the right guide vane is disposed at the right air outlet and extends in the front-rear direction;

[0012] The tangent line on the left side of the inlet end of the left guide vane points to the right rear, and the tangent line on the right side of the inlet end of the right guide vane points to the left rear.

[0013] In some embodiments of the present application, a first inlet angle is formed at the inlet end of the left guide vane, and a second inlet angle is formed at the inlet end of the right guide vane. The ranges of the first inlet angle and the second inlet angle are 20° to 50° respectively.

[0014] In some embodiments of the present application, the tangent line on the left side of the outlet end of the left guide vane points to the right front, and the tangent line on the right side of the outlet end of the right guide vane points to the left front.

[0015] In some embodiments of the present application, a first outlet angle is formed at the outlet end of the left guide vane, and a second outlet angle is formed at the outlet end of the right guide vane. The ranges of the first outlet angle and the second outlet angle are 0° to 20° respectively.

[0016] In some embodiments of the present application, the diverter has a diversion starting point. A first straight line is drawn along the front-rear direction through the diversion starting point, and the first straight line intersects the cross-flow fan.

[0017] In some embodiments of the present application, the distance between the first straight line and the center of the cross-flow fan in the left-right direction is not greater than 0.2 times the diameter of the cross-flow fan.

[0018] In some embodiments of the present application, the air duct is provided with an air inlet, and the diverter, the cross-flow fan, and the air inlet are arranged in sequence from front to back.

[0019] In some embodiments of the present application, the diverter includes a first functional module adapted to change the environment through the first functional module.

[0020] In some embodiments of the present application, the tower fan includes an atomizer. The first functional module has a mist channel and a mist outlet communicating with the mist channel. The mist channel communicates with the atomizer, and the mist outlet is arranged on the front side of the diverter.

[0021] In some embodiments of the present application, the mist outlet extends in a long strip shape along the up-down direction.

[0022] In some embodiments of the present application, the mist channel extends in the up-down direction, the mist outlet extends along the mist channel to communicate with the mist channel, an inlet for mist is provided at the bottom end of the mist channel, and the width of the mist outlet is set to increase from bottom to top.

[0023] In some embodiments of the present application, the mist channel extends in the up-down direction, an inlet for mist is provided at the bottom end of the mist channel, and the mist outlet extends along the mist channel;

[0024] The diverter has fog guiding vanes, and a plurality of the fog guiding vanes are arranged at the fog outlet and are spaced apart in the vertical direction. At least a part of the projection of the fog guiding vane from top to bottom is located at the fog inlet.

[0025] In some embodiments of the present application, the lower side surface of the fog guiding vane is inclined to be suitable for guiding the fog towards the upper oblique direction.

[0026] In some embodiments of the present application, the leading edge of the fog guiding vane is located behind the leading edge of the fog outlet and is at a preset distance from the leading edge of the fog outlet.

[0027] In some embodiments of the present application, the diverter includes a first component and a second component located behind the first component. The first component and the second component are connected to enclose the fog passage. The fog outlet is arranged on the first component, and the second component is suitable for diverting the airflow.

[0028] By arranging a diverter in the air outlet section of the air duct in the technical solution of the present application, a surrounding air flow is formed, which is beneficial to improving the flow uniformity of the air flow finally discharged from the tower fan, avoiding the air outlet skew phenomenon caused by the cross-flow impeller, and thus improving the air outlet comfort of the tower fan.

[0029] Other advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present application. Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other designs can also be obtained based on the structures shown in these drawings.

[0031] Figure 1 Is a perspective view of a tower fan in some embodiments;

[0032] Figure 2 Is a front view of a tower fan in some embodiments;

[0033] Figure 3 Is Figure 2 An enlarged view of the marked A in

[0034] Figure 4 Is a disassembled view of a tower fan in some embodiments;

[0035] Figure 5 Is a schematic diagram of a diverter in some embodiments;

[0036] Figure 6 is Figure 5 an enlarged view of the one marked as B in

[0037] Figure 7 is Figure 5 an enlarged view of the one marked as C in

[0038] Figure 8 is a cross-sectional view of the diverter in some embodiments;

[0039] Figure 9 is a cross-sectional view of the diverter in some embodiments (taken horizontally);

[0040] Figure 10 is Figure 9 an enlarged view of the one marked as D in

[0041] Figure 11 is Figure 9 an enlarged view of the one marked as E in

[0042] Figure 12 is a schematic diagram of the left guide vane in some embodiments;

[0043] Figure 13 is a schematic diagram of the right guide vane in some embodiments;

[0044] Figure 14 is a cross-sectional view of the diverter in some embodiments (taken horizontally, showing H and r);

[0045] Figure 15 is a cross-sectional view of the diverter in some embodiments (taken horizontally, showing a1, a2, b1 and b2);

[0046] Figure 16 is a cross-sectional view of the diverter in some embodiments (taken horizontally, showing L1 and D);

[0047] Figure 17 is a simulation diagram of the tower fan air flow in some embodiments.

[0048] Explanation of the reference numerals in the drawings:

[0049] Air duct 1000, air outlet section 1100, left side wall 1101, right side wall 1102, left flow channel 1110, left air outlet 1111, right flow channel 1120, right air outlet 1121, air inlet 1200, cross-flow fan 2000, flow divider 3000, first component 3100, mist outlet 3110, leading edge 3111 of mist outlet 3110, mist guiding vane 3120, lower side surface 3121, leading edge 3122 of mist guiding vane 3120, second component 3200, flow division starting point 3210, first straight line 3211, mist passage 3300, mist inlet 3310, housing 4000, inlet 4001, left guide vane 4100, inlet end 4110 of left guide vane 4100, tangent line 4111 on the left side of inlet end 4110, outlet end 4120 of left guide vane 4100, tangent line 4121 on the left side of outlet end 4120, right guide vane 4200, inlet end 4210 of right guide vane 4200, tangent line 4211 on the right side of inlet end 4210, outlet end 4220 of right guide vane 4200, tangent line 4221 on the right side of outlet end 4220, atomizer 5100.

[0050] The realization of the purpose of this application, functional features and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Detailed implementation manners

[0051] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope protected by the present application.

[0052] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0053] In the present application, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0054] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0055] The present application proposes a tower fan, combined with Figure 1 , Figure 2 , Figure 4 , Figure 9 and Figure 10 As shown, in some embodiments of the present application, the tower fan includes an air duct 1000, a crossflow impeller 2000 and a diverter 3000. The crossflow impeller 2000 is disposed in the air duct 1000. When the crossflow airflow rotates in the air duct 1000, it can drive the air flow. The diverter 3000 is disposed in the air outlet section 1100 of the air duct 1000, thereby separating the air outlet section 1100 of the air duct 1000 into a right-side flow channel 1120 and a left-side flow channel 1110. A right-side air outlet 1121 is formed at the end of the right-side flow channel 1120, and a left-side air outlet 1111 is formed at the end of the left-side flow channel 1110.

[0056] By setting the splitter 3000 at the air outlet section 1100 of the air duct 1000, an encircling wind is formed, which is beneficial to improving the flow uniformity of the airflow finally discharged from the tower fan, avoiding the skewed air outlet phenomenon caused by the cross-flow wind wheel 2000, and thus improving the air outlet comfort of the tower fan.

[0057] Specifically, the up, down, left, right, front and back directions in this article are based on the tower fan placed on the ground. The side of the tower fan facing the user is the front, and the side away from the user is the back. The side corresponding to the user's left hand is the left, and the side corresponding to the user's right hand is the right (the left air outlet 1111 and the right air outlet 1121 are arranged along the left and right directions). The side close to the ground is the bottom, and the side away from the ground is the top.

[0058] The tower fan includes an air duct 1000, a cross-flow impeller 2000 and a motor. The cross-flow impeller 2000 is arranged in the air duct 1000 and is rotatably arranged relative to the air duct 1000. The cross-flow impeller 2000 and the air duct 1000 are assembled together and arranged above the motor. The motor and the cross-flow impeller 2000 are drivingly connected. The cross-flow impeller 2000 can be driven by the motor to rotate in the air duct 1000. The air duct 1000 has an air inlet 1200 and an air outlet (the air outlet is composed of a right air outlet 1121 and a left air outlet 1111). The air flow driven by the cross-flow impeller 2000 enters the air duct 1000 from the air inlet 1200 and then is discharged through the air outlet.

[0059] In the related art, the cross-flow impeller 2000 extends in the up-down direction. When the cross-flow impeller 2000 rotates, due to the characteristics of the cross-flow impeller 2000, the discharged air will deflect to one side (left or right), which will cause a large air volume on one side and a small air volume on the other side, reducing the uniformity and comfort of the air outlet.

[0060] Therefore, in this embodiment, by providing a diverter 3000, the diverter 3000 is arranged in the air outlet section 1100 of the air duct 1000. The so-called air outlet section 1100 is the part of the air duct 1000 corresponding to the downstream of the cross-flow impeller 2000. It can be understood that the air outlet section 1100 of the air duct 1000 has a certain extension length. The diverter 3000 only needs to be arranged in the air outlet section 1100. This embodiment does not limit whether the diverter 3000 completely occupies the air outlet section 1100 along the extension direction (air flow direction) of the air outlet section 1100. In this way, the diverter 3000 can divide the air outlet section 1100, so that the air outlet section 1100 is divided into a right flow channel 1120 and a left flow channel 1110. That is, when the user faces the front side of the tower fan, the right flow channel 1120 corresponds to the user's right hand, and the left flow channel 1110 corresponds to the user's left hand. The end of the right flow channel 1120 forms the right air outlet 1121, and the end of the left flow channel 1110 forms the left air outlet 1111. The directions of the left air outlet 1111 and the right air outlet 1121 are in the left-right direction.

[0061] When the air flow discharged by the cross-flow impeller 2000 flows to the diverter 3000, it is divided into two air flows under the action of the diverter 3000. One air flow flows along the right flow channel 1120 and is discharged through the right air outlet 1121, and the other air flow flows along the left flow channel 1110 and is discharged through the left air outlet 1111. Figure 9Taking the shown orientation as a reference, without the setting of the flow divider 3000, the air flow discharged by the cross-flow impeller 2000 will deflect towards the left front. By setting the flow divider 3000, when the air flow reaches the flow divider 3000, the air flow deflecting towards the left front will encounter the obstruction of the flow divider 3000 and then change its direction to enter the right flow channel 1120. For example Figure 17 In the air flow simulation shown, the air flow near the right side wall 1102 of the air outlet section 1100 discharged by the cross-flow impeller 2000 has the inertia of deflecting towards the left. When it flows to the flow divider 3000, the flow divider 3000 blocks and redirects this part of the air flow, eliminating the left deflection inertia of this part of the air flow, and then making this part of the air flow discharged from the right air outlet 1121. In this way, the phenomenon of skewed air outlet of the tower fan can be avoided to a certain extent, and the uniformity of the air outlet can be improved.

[0062] It can be understood that by setting the flow divider 3000, to a certain extent, the flow divider 3000 forms an obstructive effect. In order to minimize the loss of air flow energy by the flow divider 3000, in this embodiment, the flow divider 3000 is provided with a flow division starting point 3210. The air flow starts to be divided from the flow division starting point 3210. The so-called flow division starting point 3210 is the position where the flow divider 3000 is closest to the cross-flow impeller 2000 along the extension direction of the air duct 1000, and at least part of the flow divider 3000 is gradually expanded forward from the flow division starting point 3210. For example, the end of the flow divider 3000 facing the air flow constitutes a tip structure. In this way, the air flow generated by the cross-flow impeller 2000 will first contact the flow division starting point 3210 and be divided into two air flows entering the right flow channel 1120 and the left flow channel 1110 from the flow division starting point 3210, minimizing the resistance formed by the flow divider 3000 to the air flow. In particular, the flow divider 3000 is gradually expanded from the flow division starting point 3210, so it is more conducive to reducing the resistance and forming a better flow division effect.

[0063] Combined with Figure 14 As shown, in some embodiments of the present application, the flow divider 3000 is provided with a flow division starting point 3210. The air flow starts to be divided from the flow division starting point 3210. Along the front-rear direction, the distance between the center of the cross-flow impeller 2000 and the flow division starting point 3210 is defined as H, and the radius of the cross-flow impeller 2000 is r. The condition H = 1.3r to 1.8r needs to be satisfied. By setting like this, the flow division effect of the flow divider 3000 on the air flow is further improved.

[0064] Specifically, the airflow generated by the cross-flow impeller 2000 will first contact the flow splitting starting point 3210 and split into two airflows that enter the right flow channel 1120 and the left flow channel 1110 from the flow splitting starting point 3210. It can be understood that since the flow splitter 3000 is arranged in the air outlet section 1100 of the air duct 1000, it will, to a certain extent, impede the flow of the airflow to some extent. And the formation of the airflow is caused by the cross-flow impeller 2000 doing work on the air. If H is designed too small, that is, the flow splitter 3000 is too close to the cross-flow impeller 2000, then the cross-flow impeller 2000 starts to split the flow before it has fully done work, which will cause a significant reduction in the air volume. If H is designed too large, as mentioned above, the characteristics of the cross-flow impeller 2000 cause the airflow to deflect towards one side. If H is designed too large, then the flow splitter 3000 is far from the cross-flow impeller 2000, and the airflow needs to be corrected at a large angle to reach the flow splitter 3000, increasing the resistance. In addition, due to the limited size of the tower fan, too large an H is also not conducive to the layout of the structure and will increase the overall space occupied by the tower fan. Therefore, in this embodiment, by optimizing H, the range of H is made to satisfy 1.3r to 1.8r. For example, the value of H is 1.3r, 1.4r, 1.5r, 1.6r, 1.7r or 1.8r. In this way, both the requirements for flow splitting can be met, the air volume can be ensured, and the loss of airflow energy can be reduced.

[0065] Combined with Figure 15 As shown, in some embodiments of the present application, the distance along the left-right direction between the flow splitting starting point 3210 and the left side wall 1101 of the air outlet section 1100 is defined as a1, the distance along the left-right direction between the flow splitting starting point 3210 and the right side wall 1102 of the air outlet section 1100 is defined as a2, the width of the left air outlet 1111 (the so-called width is the dimension along the left-right direction) is defined as b1, and the width of the right air outlet 1121 is defined as b2. The condition (a1 / a2) = (0.9 to 1.1) * (b1 / b2) needs to be satisfied to reduce the flow difference between the right air outlet 1121 and the left air outlet 1111, thereby further improving the air outlet uniformity of the tower fan.

[0066] Specifically, as mentioned above, the characteristics of the cross-flow impeller 2000 cause the air flow to shift to one side. The air flow shifter 3000 can suppress the shift of the air flow to a certain extent, which is beneficial to the uniformity of air outlet. In this embodiment, by matching a1, a2, a3 and a4, the condition (a1 / a2) = (0.9 - 1.1) * (b1 / b2) is satisfied. For example, (a1 / a2) = 0.9 * (b1 / b2), (a1 / a2) = 1.0 * (b1 / b2) or (a1 / a2) = 1.1 * (b1 / b2). In this way, the optimization can maximize the matching of the air outlet of the right air outlet 1121 and the left air outlet 1111, further reduce the difference in air volume and air speed between the right air outlet 1121 and the left air outlet 1111, and improve the air outlet comfort.

[0067] Combined with Figure 10 As shown, in some embodiments of the present application, the air flow shifter 3000 is provided with a flow splitting starting point 3210. The so-called flow splitting starting point 3210 is as described above and will not be repeated here. At least a part of the right flow channel 1120 slopes forward to the right starting from the flow splitting starting point 3210, while at least a part of the left flow channel 1110 slopes forward to the left starting from the flow splitting starting point 3210. For example, the upstream part of the right flow channel 1120 slopes forward to the right from the flow splitting starting point 3210, and the downstream part of the right flow channel 1120 extends in the front-rear direction. The right air outlet 1121 is arranged at the downstream part of the right flow channel 1120. The upstream part of the left flow channel 1110 slopes forward to the left from the flow splitting starting point 3210, and the downstream part of the left flow channel 1110 extends in the front-rear direction. Through the inclined settings of the upstream parts of the right flow channel 1120 and the left flow channel 1110, it is easier to guide the air flow when the air flow shifter 3000 splits the air flow. And through the front-rear direction extensions of the downstream parts of the right flow channel 1120 and the left flow channel 1110, it is more convenient to achieve the forward (front) air outlet of the air flow in the tower fan.

[0068] It can be understood that the inclined setting of at least a part of the right flow channel 1120 means that when the air flow passes through at least a part of the right flow channel 1120, it flows forward to the right. Similarly, the inclined setting of at least a part of the left flow channel 1110 means that when the air flow passes through at least a part of the left flow channel 1110, it flows forward to the left.

[0069] To further improve the uniformity of air outlet, continue to combine Figure 10As shown, the tower fan includes a right guide vane 4200 and a left guide vane 4100. The right guide vane 4200 is arranged at the right air outlet 1121 for guiding the airflow discharged from the right air outlet 1121. The left blade is arranged at the left air outlet 1111 for guiding the airflow discharged from the left air outlet 1111. The right guide vane 4200 and the left guide vane 4100 have a certain height in the vertical direction. Through the design of the right guide vane 4200 and the left guide vane 4100, the air outlet through the right air outlet 1121 and the left air outlet 1111 is more uniform. In addition, in this embodiment, the right guide vane 4200 and the left guide vane 4100 need to be designed to extend in the front-to-back direction, which is more conducive to realizing the steam box (front) air outlet of the tower fan. On this basis, the tangent 4211 on the right side of the inlet end 4210 of the right guide vane 4200 needs to be designed to point to the left rear, while the tangent 4111 on the left side of the inlet end 4110 of the left guide vane 4100 needs to be designed to point to the right rear, such as to be more conducive to guiding the diverted airflow to flow through the right guide vane 4200 / left guide vane 4100, further reducing the flow resistance of the airflow, and achieving a better diversion effect.

[0070] This is because, as mentioned above, at least part of the right flow channel 1120 is inclined from the divergence starting point 3210 toward the right front, while at least part of the left flow channel 1110 is inclined from the divergence starting point 3210 toward the left front. To this end, the tangent 4211 on the right side of the inlet end 4210 of the right guide vane 4200 is directed to the left rear, so that the airflow of the right flow channel 1120 is better received, thereby guiding these airflows to be discharged toward the front. The tangent 4111 on the left side of the inlet end 4110 of the left guide vane 4100 is directed to the right rear, so that the airflow of the left flow channel 1110 is better received, thereby guiding these airflows to be discharged toward the front.

[0071] For example, combined with Figure 10 , Figure 12 and Figure 13 As shown, the inlet end 4210 of the right guide vane 4200 is provided with a second inlet angle, which is located on the side of the right guide vane 4200 away from the left guide vane 4100, and is the angle between the tangent 4211 of the inlet end 4210 and the front-rear direction, and the second inlet angle is defined as α2, and the value range of α2 is 20° to 50°, for example, α2 is 20°, 30°, 40° or 50°. The inlet end 4110 of the left guide vane 4100 is provided with a first inlet angle, which is located on the side of the left guide vane 4100 away from the right guide vane 4200, and is the angle between the tangent 4111 of the inlet end 4110 and the front-rear direction, and the first inlet angle is defined as α1, and the value range of α1 is 20° to 50°, for example, α1 is 20°, 30°, 40° or 50°. The first inlet angle α1 and the second inlet angle α2 ensure the acceptance and diversion effect of the airflow.

[0072] Combination Figure 10 , Figure 12 and Figure 13 As shown, in some embodiments of the present application, the tangent 4221 on the right side of the outlet end 4220 of the right guide vane 4200 needs to be designed to point to the left front, and the tangent 4121 on the left side of the outlet end 4120 of the left guide vane 4100 needs to be designed to point to the right front, so that the wind discharged from the right air outlet 1121 and the wind discharged from the left air outlet 1111 can be better converged, thereby achieving stronger air supply.

[0073] It can be understood that since the right air outlet 1121 and the left air outlet 1111 are separated by the diverter 3000, the airflow discharged from the right air outlet 1121 and the left air outlet 1111 is divided into two streams and diverges. Through the coordination of the outlet end 4220 of the right guide vane 4200 and the outlet end 4120 of the left guide vane 4100, the airflow discharged from the right air outlet 1121 and the left air outlet 1111 are converged, thereby achieving air supply over a longer distance.

[0074] For example, combined with Figure 10 , Figure 12 and Figure 13 As shown, the outlet end 4220 of the right guide vane 4200 is provided with a second outlet angle, which is located on the side of the right guide vane 4200 away from the left guide vane 4100, and is the angle between the tangent 4221 of the outlet end 4220 and the front-to-back direction, and the second outlet angle is defined as β2, and the value range of β2 is 0° to 20°, for example, β2 is 0°, 5°, 10°, 15° or 20°. The outlet end 4120 of the left guide vane 4100 is provided with a first outlet angle, which is located on the side of the left guide vane 4100 away from the right guide vane 4200, and is the angle between the tangent 4121 of the outlet end 4120 and the front-to-back direction, and the first outlet angle is defined as β1, and the value range of β1 is 0° to 20°, for example, β1 is 0°, 5°, 10°, 15° or 20°. By optimizing the first outlet angle β1 and the second outlet angle β2, the convergence effect of the outlet air is ensured.

[0075] Combination Figure 16 As shown, in some embodiments of the present application, the splitter 3000 is provided with a splitting starting point 3210, and the airflow starts to split from the splitting starting point 3210, defining a first straight line 3211, and the first straight line 3211 passes through the splitting starting point 3210 and extends in the front-to-back direction, and the first straight line 3211 intersects with the cross-flow impeller 2000. By such a configuration, the airflow resistance can be reduced.

[0076] Specifically, when the air flow flows from the cross-flow impeller 2000 to the flow divider 3000, it needs to flow under the constraint of the air outlet section 1100 of the air duct 1000. In this embodiment, the first straight line 3211 passing through the flow division starting point 3210 is designed to intersect with the cross-flow impeller 2000. In this way, the cross-flow impeller 2000 and the flow divider 3000 will not deviate too much from each other in the spatial position. In this way, it is possible to avoid setting too many corners in the air outlet section 1100 of the air duct 1000, or the length of the air outlet section 1100 of the air duct 1000 can be shortened, which is beneficial to reducing the resistance of the air flow when passing through the air outlet section 1100.

[0077] Combined with Figure 16 As shown, in some embodiments of the present application, along the left-right direction, the distance between the first straight line 3211 and the center of the cross-flow impeller 2000 is designed to be not greater than 0.2 times the diameter of the cross-flow impeller 2000, further restricting the degree of mutual offset between the flow divider 3000 and the cross-flow impeller 2000 in space.

[0078] Specifically, the distance between the first straight line 3211 and the center of the cross-flow impeller 2000 is L1, and the diameter of the cross-flow impeller 2000 is D, satisfying L1 ≤ 0.2D. For example, L1 is 0.02D, 0.05D, 0.08D, 0.1D, 0.15D or 0.2D. By setting it in this way, a large part of the flow divider 3000 and the cross-flow impeller 2000 can overlap in the front-rear direction. In this way, the air outlet section 1100 of the air duct 1000 does not need to be designed to be inclined to a large extent to guide the air flow to the flow divider 3000, further reducing the resistance of the air flow.

[0079] Furthermore, combined with Figure 10 and 16 As shown, in some embodiments of the present application, the first straight line 3211 is located between the left side wall 1101 and the right side wall 1102 of the air outlet section 1100, and the first straight line 3211 is respectively at a preset distance from the left side wall 1101 and the right side wall 1102 of the air outlet section 1100. In this way, the resistance of the air flow can be further reduced.

[0080] Specifically, when the first straight line 3211 is located between the left side wall 1101 and the right side wall 1102 of the air outlet section 1100, the first straight line 3211 needs to be separated from the left side wall 1101 and the right side wall 1102 of the air outlet section 1100 by a preset distance respectively, that is, the first straight line 3211 neither contacts the left side wall 1101 of the air outlet section 1100 nor contacts the right side wall 1102 of the air outlet section 1100. That is to say, along the front-back direction, part of the projection of the flow divider 3000 can be projected onto the cross-flow fan 2000, and part of the projection of the cross-flow fan 2000 can be projected onto the flow divider 3000. In this way, at least part of the air flow discharged by the cross-flow fan 2000 can reach the flow divider 3000 for diversion without contacting the left side wall 1101 and the right side wall 1102 of the air outlet section 1100. In this way, the air flow resistance can be further reduced and the diversion effect can be improved.

[0081] Combined with Figure 9 and Figure 10 As shown, in some embodiments of the present application, the air duct 1000 is provided with an air inlet 1200. When the cross-flow fan 2000 rotates, it is adapted to drive the air flow to enter the air duct 1000 from the air inlet 1200, then flow through the air outlet section 1100 and then be diverted by the flow divider 3000, and finally be discharged through the right air outlet 1121 and the left air outlet 1111. In this embodiment, by designing the flow divider 3000, the cross-flow fan 2000 and the air inlet 1200 to be arranged from front to back, that is, along the front-back direction, at least part of the flow divider 3000 overlaps with at least part of the cross-flow fan 2000, and at least part of the cross-flow fan 2000 overlaps with at least part of the air inlet 1200. In this way, the resistance of the air flow from the air inlet 1200 to the flow divider 3000 can be reduced, and the energy loss of the air flow can be reduced.

[0082] Furthermore, the tower fan has a housing 4000, and the housing 4000 has an inlet 4001. The air flow is adapted to flow through the inlet 4001 and the air inlet 1200 in sequence and then enter the air duct 1000. By designing the flow divider 3000, the cross-flow fan 2000, the air inlet 1200 and the inlet 4001 to be arranged from front to back, the wind resistance can be further reduced, which is more conducive to improving the wind speed and air volume.

[0083] In some embodiments of the present application, the flow divider 3000 includes a first functional module, and the flow divider 3000 can change the environment through the first functional module, so as to increase the functional attributes of the tower fan. For example, the first functional module is used for heating, mosquito repellent, disinfection, purification, etc., as long as it can change the environmental properties, it can be regarded as the first functional module.

[0084] Combined with Figure 4 、 Figure 9 、 Figure 10 and Figure 11As shown, in some embodiments of the present application, the tower fan includes an atomizer 5100. The first functional module includes a mist channel 3300 and the above-mentioned mist outlet 3110. The mist outlet 3110 is in communication with the mist channel 3300, and the mist channel 3300 is in communication with the atomizer 5100. The mist channel 3300 can receive the mist generated by the atomizer 5100. The mist outlet 3110 is provided on the front side of the diverter 3000. The mist entering the mist channel 3300 can be discharged forward through the mist outlet 3110.

[0085] Specifically, through the cooperation of the atomizer 5100, the mist channel 3300 and the mist outlet 3110, the tower fan can discharge a certain amount of mist to increase the coolness. The atomizer 5100 is a device that can atomize water. For example, the atomizer 5100 is an ultrasonic atomizer. By converting electrical energy into ultrasonic energy, the water is broken up to form mist. The atomization function can be started synchronously with the air outlet of the tower fan. The mist is transported to the mist outlet 3110 through the mist channel 3300 and then discharged forward. The mist is sent to the target area along with the air flow. It can be understood that since the diverter 3000 separates the right air outlet 1121 and the left air outlet 1111, that is to say, the mist outlet 3110 is located between the right air outlet 1121 and the left air outlet 1111. The air outlet speed of the right air outlet 1121 and the left air outlet 1111 is faster than the mist outlet speed of the mist outlet 3110. Therefore, the pressure in front of the mist outlet 3110 is greater than the pressure in front of the right air outlet 1121 and the pressure in front of the left air outlet 1111. When the mist is discharged from the mist outlet 3110, the mist can be quickly mixed into the air flows on the left and right sides and thus quickly reach the target area along with the air flow, improving the user experience.

[0086] Combined Figure 4 、 Figure 5 and Figure 8 As shown in, in some embodiments of the present application, the mist channel 3300 is designed to extend in the up and down direction, which is more suitable for the structural arrangement of the tower fan. The cross-flow fan 2000 and the air duct 1000 are arranged at the upper part of the tower fan. The motor for driving the fan is arranged at the lower part of the tower fan. Generally speaking, the atomizer 5100 needs to store water to atomize the water. Therefore, the atomizer 5100 has a certain weight and will be arranged at the lower part of the tower fan. Therefore, by designing the mist channel 3300 to extend in the up and down direction, the connection between the mist outlet 3110 and the atomizer 5100 can be better realized.

[0087] Specifically, the fog outlet 3110 extends along the length of the fog passage 3300, so that fog can be discharged through the fog outlet 3110 in both the up and down directions. It can be understood that since fog is heavier than air, when the fog enters the fog passage 3300, the fog will accumulate at the lower position of the fog passage 3300, which may cause a large amount of fog to be discharged from the bottom of the fog outlet 3110 and a small amount of fog to be discharged from the top. Therefore, in this embodiment, the width of the fog outlet 3110 (the dimension in the left-right direction) is designed to increase from bottom to top. As long as the width of the upper position of the fog outlet 3110 is greater than the width of the lower position, it can be regarded as increasing from bottom to top. In this way, the fog discharge amount of the fog outlet 3110 in the up and down directions is taken into account, making the fog discharge more uniform. In addition, by the up and down extension of the fog outlet 3110, the fog discharge range of the fog outlet 3110 can be improved synchronously. Combining Figure 2 and Figure 3 As shown, the width of the fog outlet 3110 is defined as w, and the value of w ranges from 3 mm to 8 mm. For example, the width of the lower position of the fog outlet 3110 is 3 mm, and the width of the upper position is 6 mm.

[0088] Combining Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 11 As shown, in some embodiments of the present application, taking the fog passage 3300 extending in the up and down direction and the fog outlet 3110 extending along the fog passage 3300 as an example, a fog inlet 3310 is provided at the bottom end of the fog passage 3300. The fog generated by the atomizer 5100 enters the fog passage 3300 through the fog inlet 3310 and fills the fog passage 3300 from bottom to top. Since the fog has an upward flowing inertia along the fog passage 3300 when entering the fog passage 3300, and the fog outlet 3110 also extends along the fog passage 3300, it is easy to cause uneven fog discharge at the fog outlet 3110.

[0089] Therefore, in this embodiment, the diverter 3000 is provided with fog guiding vanes 3120. The number of the fog guiding vanes 3120 is multiple. The multiple fog guiding vanes 3120 are arranged at the fog outlet 3110, and the multiple fog guiding vanes 3120 are arranged at intervals in the up and down direction. Moreover, along the direction from top to bottom, at least part of the projection of the fog guiding vane 3120 facing downward is located at the fog inlet 3310. In this way, the fog flowing upward through the fog inlet 3310 can encounter at least part of the obstruction of the fog guiding vane 3120, and then under the action of the fog guiding vane 3120, these fogs are caused to change direction and be discharged forward. By arranging multiple fog guiding vanes 3120 in the up and down direction, the uniformity of fog discharge at the entire fog outlet 3110 is improved.

[0090] Furthermore, combiningFigure 8 As shown, the lower side surface 3121 of the fog guiding vane 3120 is designed to be inclined. By setting the lower side surface 3121 of the fog guiding vane 3120 to be inclined, the fog can be guided to be discharged obliquely upward. That is to say, the lower side surface 3121 of the fog guiding vane 3120 is inclined obliquely upward. For example, the angle of the lower side surface 3121 relative to the horizontal plane is γ, and the value range of γ is 2° to 10°. It can be understood that when the fog flows upward and encounters the obstruction of the fog guiding vane 3120, it will contact the lower side surface 3121 of the fog guiding vane 3120 and thus be discharged along the lower side surface 3121. Since the fog is heavier than air, guiding the fog obliquely upward is beneficial to avoid the fog from sinking and wetting the ground.

[0091] Combined with Figure 8 As shown, in some embodiments of the present application, the leading edge 3122 of the fog guiding vane 3120 is designed to be behind the leading edge 3111 of the fog outlet 3110, and there is a preset distance between the leading edge 3122 of the fog guiding vane 3120 and the leading edge 3111 of the fog outlet 3110. It can be understood that when the fog is guided by the fog guiding vane 3120, condensed water will be formed on the fog guiding vane 3120. The condensed water may drip downward under the action of gravity. By designing the leading edge 3122 of the fog guiding vane 3120 to have a preset distance L2 from the leading edge 3111 of the fog outlet 3110, for example, the value range of L2 is 3 mm to 8 mm, so that the condensed water dripping from the fog guiding vane 3120 is still behind the fog outlet 3110, to a certain extent avoiding the condensed water from overflowing outside the tower fan.

[0092] Combined with Figure 5 As shown, in some embodiments of the present application, for the convenience of manufacturing the flow divider 3000, the flow divider 3000 includes a first component 3100 and a second component 3200. The second component 3200 is arranged behind the first component 3100 and is used for dividing the air flow discharged by the cross-flow air current, while the first component 3100 is used for forming a fog outlet 3110. By connecting the first component 3100 and the second component 3200, the formation of the fog passage 3300 is realized, which is convenient for manufacturing. It can be understood that the fog guiding vane 3120 is also arranged on the first component 3100. In this way, the first component 3100 forms a grid-like structure. By designing the flow divider 3000 into a split structure, it is convenient for manufacturing.

[0093] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application accordingly. All equivalent structural transformations made under the concept of the present application by using the content of the specification and drawings of the present application, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A tower fan, characterized in that, The tower fan includes: An air duct; A cross-flow impeller disposed in the air duct; and A diverter disposed in the air outlet section of the air duct to divide a left flow path and a right flow path in the air outlet section of the air duct. A left air outlet is formed at the end of the left flow path, and a right air outlet is formed at the end of the right flow path.

2. The tower fan according to claim 1, wherein The diverter has a diversion starting point. The distance between the diversion starting point and the center of the cross-flow impeller in the front-rear direction is H, satisfying H = 1.3r to 1.8r, where r is the radius of the cross-flow impeller.

3. The tower fan according to claim 1, characterized in that, The diverter has a diversion starting point. In the left-right direction, the distance between the diversion starting point and the left side wall of the air outlet section is a1, and the distance between the diversion starting point and the right side wall of the air outlet section is a2. The width of the left air outlet is b1, and the width of the right air outlet is b2, satisfying (a1 / a2) = (0.9 to 1.1) * (b1 / b2).

4. The tower fan according to claim 1, characterized in that The diverter has a diversion starting point. At least a part of the left flow path inclines forward to the left from the diversion starting point, and at least a part of the right flow path inclines forward to the right from the diversion starting point; The tower fan includes a left guide vane and a right guide vane. The left guide vane is disposed at the left air outlet and extends in the front-rear direction, and the right guide vane is disposed at the right air outlet and extends in the front-rear direction; The tangent line on the left side of the inlet end of the left guide vane points to the right rear, and the tangent line on the right side of the inlet end of the right guide vane points to the left rear.

5. The tower fan according to claim 4, characterized in that, A first inlet angle is formed at the inlet end of the left guide vane, and a second inlet angle is formed at the inlet end of the right guide vane. The ranges of the first inlet angle and the second inlet angle are 20° to 50° respectively.

6. The tower fan according to claim 4, characterized in that, The tangent line on the left side of the outlet end of the left guide vane points to the right front, and the tangent line on the right side of the outlet end of the right guide vane points to the left front.

7. The tower fan according to claim 6, characterized in that, A first outlet angle is formed at the outlet end of the left guide vane, and a second outlet angle is formed at the outlet end of the right guide vane. The ranges of the first outlet angle and the second outlet angle are 0° to 20° respectively.

8. The tower fan according to claim 1, characterized in that, The diverter has a diversion starting point. A first straight line is drawn in the front-rear direction through the diversion starting point, and the first straight line intersects the cross-flow impeller.

9. The tower fan according to claim 8, characterized in that, The distance between the first straight line and the center of the cross-flow impeller in the left-right direction is not greater than 0.2 times the diameter of the cross-flow impeller.

10. The tower fan according to claim 1, characterized in that, An air inlet is provided in the air duct, and the diverter, the cross-flow impeller, and the air inlet are arranged in sequence from front to back.

11. The tower fan according to claim 1, characterized in that, The diverter includes a first functional module adapted to change the environment through the first functional module.

12. The tower fan according to claim 11, wherein, The tower fan includes an atomizer. The first functional module has a mist passage and a mist outlet communicating with the mist passage. The mist passage communicates with the atomizer, and the mist outlet is provided on the front side of the diverter.

13. The tower fan according to claim 12, characterized in that, The mist outlet extends in a long strip shape in the up-down direction; And / or, the mist passage extends in the up-down direction, the mist outlet extends along the mist passage to communicate with the mist passage, a mist inlet is provided at the bottom end of the mist passage, and the width of the mist outlet is set to increase from bottom to top.

14. The tower fan according to claim 12, wherein The mist passage extends in the vertical direction, an inlet for mist is provided at the bottom end of the mist passage, and the outlet for mist extends along the mist passage; The flow divider has guide vanes, a plurality of the guide vanes are arranged at the outlet for mist and are arranged at intervals in the vertical direction, and at least a part of the projection of the guide vanes from top to bottom is located at the inlet for mist.

15. The tower fan according to claim 14, characterized in that, The lower side surface of the guide vane is inclined to be suitable for guiding the mist obliquely upward; And / or, the leading edge of the guide vane is located behind the leading edge of the outlet for mist and is separated from the leading edge of the outlet for mist by a preset distance.

16. The tower fan according to claim 12, characterized in that, The flow divider includes a first component and a second component located behind the first component, the first component and the second component are connected to enclose the mist passage, the outlet for mist is provided on the first component, and the second component is suitable for dividing the airflow.

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