Portable fan

Abstract

The utility model belongs to the technical field of fans, and provides a portable fan which comprises a machine box which comprises an upper box cover and a lower box cover. A butt joint hole is formed in the edge of the top of the lower box cover, a butt joint column is arranged on the edge of the bottom of the upper box cover, and the butt joint column is inserted into the butt joint hole downwards. A protective cover is arranged at the front end of the machine box, a prismatic hole is formed in the middle of the protective cover, buckles are arranged at the top and the bottom of the protective cover and extend backwards, elastic buckles are arranged at the positions, close to the top and the bottom of the protective cover, of the machine box, and the buckles are clamped on the elastic buckles backwards; elastic clamps are arranged at the top and the bottom of the machine box, and the mounting directions of the two elastic clamps are opposite; the design is more compact, battery power supply on the two sides can provide more lasting electric power, the proportion in an installation groove can be reduced when the fan is placed together with a fan motor, the size of the whole fan is equal to that of a palm, and the machine box which is round in whole is more convenient to carry and hold.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a portable fan. Background Art

[0002] As the name suggests, a small fan refers to an electric fan that is small and easy to carry. It is also generally called a handheld electric fan. Traditional handheld electric fans have never gotten rid of the problem of handles. The advantage of using a handle fan is that it is easy for people to hold, but the disadvantages of this fan are also obvious. It is too long and straight. It can only be placed in a bag or held in the hand when carried. If you want to put it in your pocket, it will appear too bloated and hinder the swinging of walking. Therefore, we have proposed a very small and compact, easy-to-carry handheld fan, which can quickly bring coolness to users in the hot summer. For this reason, we have proposed a portable fan. Utility Model Content

[0003] The purpose of the utility model is to provide a portable fan to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a portable fan, comprising a machine box, wherein the machine box comprises an upper box cover and a lower box cover;

[0005] A docking hole is provided on the top edge of the lower box cover, and a docking post is provided on the bottom edge of the upper box cover, and the docking post is inserted downward into the docking hole;

[0006] A protective cover is provided at the front end of the machine box, a prismatic hole is opened in the middle of the protective cover, buckles are provided at the top and bottom of the protective cover, and the buckles extend backward, and elastic buckles are provided at the top and bottom of the machine box near the protective cover, and the buckles are clamped backward on the elastic buckles;

[0007] The top and bottom of the box are both provided with elastic clips, and the installation directions of the two elastic clips are opposite;

[0008] The inner cavity of the lower box cover is provided with an inner liner, and a mounting groove is provided in the inner liner, a fan motor is installed in the mounting groove, the upper box cover is clamped downwardly on the top of the fan motor, and an air inlet is provided at the rear end of the machine box;

[0009] An air guide port is installed on the front side of the installation slot, and the air guide port includes an air guide tube and a fin plate, and the fin plate is arranged on a side close to the fan motor;

[0010] The air guide tube is conical, and the end with the widest diameter is close to the fan motor. The air guide tube and the four corners of the fin plate are provided with fixing holes, and the four corners of the side of the fan motor close to the fin plate are also provided with fixing holes. Long bolts are screwed into the fixing holes, and the long bolts are screwed to the fan motor from front to back.

[0011] The fin plate is arranged with paddle-shaped spoilers, the surfaces of the spoilers are inclined, the air guide tube is conical, and the end with the widest diameter is close to the fan motor, the front end diameter of the air guide tube is one-fifth of the rear end diameter, and a hoop rib is arranged at the front end of the air guide tube.

[0012] Preferably, both left and right sides of the front end of the machine box are provided with concave grooves, and holding plates are provided in the concave grooves. Two latches are provided on the holding plates near the machine box, and the two latches are respectively inserted into the upper box cover and the lower box cover.

[0013] Preferably, batteries are symmetrically arranged on the left and right sides of the installation slot, the battery pack is clamped on the left and right sides of the fan motor, and a heat-insulating barrier plate is arranged near the battery and the fan motor.

[0014] Preferably, control switches are provided on both the left and right sides of the machine box, and the control switches are electrically connected to the batteries on the left and right sides; the air guide tube abuts forwardly against the rear side of the prismatic hole of the protective cover.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The dual-sided battery power supply can provide more lasting power. When placed together with the fan motor, it can reduce the space in the installation slot and make the design more compact. This makes the entire fan small in size. The entire fan is equivalent to the size of a palm, and the overall rounded box is more handy when carrying and holding;

[0017] 2. When the air flows through the gaps between the fins, it will be accelerated and transmitted forward, which can increase the transmission efficiency of the air flow. The air guide port can reduce noise and vibration, and it has a hurricane effect when blowing, bringing more coolness.

[0018] 3. There are elastic clips on the outer side of the box. The fan can be clamped to a backpack, belt or other portable items that are easy to mount, or directly put in a pocket. The two elastic clips can be mounted in different directions, which is more convenient when mounted;

[0019] 4. It can be held on both sides when in use, with the hands clamped on the gripping plate. The gripping plate is provided with anti-slip threaded edges to increase the resistance when holding. At the same time, the gripping plate is provided with latches near the upper box cover and the lower box cover, which are inserted inward into the locking position at the front end for reinforcement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the front view of the utility model;

[0021] Figure 2 This is a top view of the installation slot of the utility model;

[0022] Figure 3 It is a side view of the utility model;

[0023] Figure 4 This is a rear view of the protective cover of the utility model;

[0024] Figure 5 This is a schematic diagram of disassembling the air guide port of the utility model;

[0025] Figure 6 This is a schematic diagram of the fan motor of the utility model;

[0026] Figure 7 It is a schematic diagram of the inner liner of the lower box cover of the present invention.

[0027] In the figure: 10 machine box, 11 upper box cover, 12 lower box cover, 13 protective cover, 14 holding plate, 15 elastic clip, 16 battery, 17 mounting slot, 18 fan motor, 19 air guide port, 110 air guide tube, 111 fin plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0030] Example:

[0031] See also Figure 1-5 , the utility model provides a technical solution of a portable fan: comprising a machine box 10, the machine box 10 comprising an upper box cover 11 and a lower box cover 12;

[0032] Furthermore, a docking hole is provided at the top edge of the lower box cover 12, and a docking post is provided at the bottom edge of the upper box cover 11, and the docking post is inserted downward into the docking hole;

[0033] Furthermore, a protective cover 13 is provided at the front end of the machine box 10, a prismatic hole is opened in the middle of the protective cover 13, buckles are provided at the top and bottom of the protective cover 13, and the buckles extend backward, and elastic buckles are provided at the top and bottom of the machine box 10 near the protective cover 13, and the buckles are clamped backward on the elastic buckles;

[0034] Furthermore, elastic clips 15 are provided at the top and bottom of the case 10, and the installation directions of the two elastic clips 15 are opposite;

[0035] Furthermore, concave grooves are provided on both sides of the front end of the machine box 10, and a gripping plate 14 is provided in each of the concave grooves. Two latches are provided near the gripping plate 14 to the machine box 10, and the two latches are respectively plugged into the upper box cover 11 and the lower box cover 12;

[0036] Furthermore, the inner cavity of the lower box cover 12 is provided with an inner liner, a mounting groove 17 is provided in the inner liner, a fan motor 18 is installed in the mounting groove 17, the upper box cover 11 is clamped downwardly on the top of the fan motor 18, and an air inlet is provided at the rear end of the machine box 10;

[0037] Furthermore, an air guide port 19 is installed at the front side of the installation slot 17. The air guide port 19 includes an air guide tube 110 and a fin plate 111. The fin plate 111 is arranged on a side close to the fan motor 18. The air guide tube 110 is conical, and the end with the widest diameter is close to the fan motor 18.

[0038] Furthermore, the fin plate 111 functions like a comb, and is composed of a plurality of parallel arc-shaped teeth. When the air flows through the gaps between the fin plates 111, it is accelerated and transmitted forward, which can increase the transmission efficiency of the air flow; the air guide 19 can reduce noise and vibration, and bring more coolness;

[0039] Furthermore, the four corners of the air guide tube 110 and the fin plate 111 are provided with fixing holes, and the four corners of the side of the fan motor 18 close to the fin plate 111 are also provided with fixing holes, and long bolts are screwed into the fixing holes, and the long bolts are screwed to the fan motor 18 from front to back;

[0040] Furthermore, the air guide tube 110 abuts forwardly against the rear side of the prismatic hole of the protective cover 13;

[0041] Furthermore, batteries 16 are symmetrically arranged on the left and right sides of the installation slot 17, and the batteries 16 are sandwiched between the left and right sides of the fan motor 18. A heat-insulating baffle is arranged near the batteries 16 and the fan motor 18.

[0042] Furthermore, control switches are provided on both sides of the case 10, and the control switches are electrically connected to the batteries 16 on the left and right sides to control the on and off of the fan motor 18;

[0043] Furthermore, the air guide tube 110 is conical, and the end with the widest diameter is close to the fan motor 18. The four corners of the air guide tube 110 and the fin plate 111 are provided with fixing holes, and the four corners of the side of the fan motor 18 close to the fin plate 111 are also provided with fixing holes, and long bolts are screwed into the fixing holes, and the long bolts are screwed to the fan motor 18 from front to back;

[0044] Furthermore, paddle-shaped spoilers are arranged in the fin plate 111, and the surface of the spoilers is inclined. The air guide tube 110 is conical, and the end with the widest diameter is close to the fan motor 18. The front end diameter of the air guide tube 110 is one fifth of the rear end diameter, and the front end of the air guide tube 110 is provided with hoop ribs;

[0045] Furthermore, the airflow blown out by the fan motor 18 will be accelerated in the air guide port 19; when the airflow passes through the fin plate 111, it will be disturbed by the spoiler to form a spiral airflow, and when the spiral airflow is transported forward, it will be squeezed by the conical cylinder in the air guide cylinder 110, so that the air output forward is more violent, and there is a hurricane effect when blowing;

[0046] Furthermore, when in use, the box 10 can be held on both sides, with the hands clamped on the gripping plate 14. The gripping plate 14 is provided with anti-slip thread edges to increase the resistance when gripping. At the same time, the gripping plate 14 is provided with latches near the upper box cover 11 and the lower box cover 12. The latches are inserted inward to lock and reinforce the upper box cover 11 and the lower box cover 12 at the front end of the engagement position;

[0047] Furthermore, a detachable protective cover 13 is provided at the front end, and a prismatic hole is provided on the protective cover 13. The protective cover 13 is flat in design, concave inward and backward in the middle, and convex on both sides. The probability of scratching the prismatic hole can be reduced during normal use, thereby increasing the protective effect and extending the service life of the prismatic hole. Compared with the conventional protruding protective cover, the protective cover 13 in this solution is more comfortable to use and does not look abrupt as a whole.

[0048] Furthermore, the outer sides of the upper box cover 11 and the lower box cover 12 are both provided with elastic clips 15, through which the fan can be clamped to a backpack, a belt or some other portable items that are easy to mount, or directly put in a pocket, and the two elastic clips 15 can be mounted in different directions, which is more convenient when mounted;

[0049] Furthermore, the double-sided battery 16 can provide more lasting power, and when placed together with the fan motor 18, it can reduce the occupancy in the mounting slot 17, making the design more compact, which makes the entire fan small in size. The entire fan is equivalent to the size of a palm, and the overall rounded box 10 is easier to carry and hold.

[0050] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable fan, comprising a box (10), wherein the box (10) comprises an upper box cover (11) and a lower box cover (12), characterized in that: The top edge of the lower box cover (12) is provided with a docking hole, and the bottom edge of the upper box cover (11) is provided with a docking post, which is inserted downward into the docking hole; A protective cover (13) is provided at the front end of the machine box (10), a prismatic hole is provided in the middle of the protective cover (13), buckles are provided at the top and bottom of the protective cover (13), and the buckles extend backwards, and elastic buckles are provided at the top and bottom of the machine box (10) near the protective cover (13), and the buckles are clamped backwards on the elastic buckles; The top and bottom of the box (10) are both provided with elastic clips (15), and the installation directions of the two elastic clips (15) are opposite; The inner cavity of the lower box cover (12) is provided with an inner liner, and a mounting groove (17) is provided in the inner liner, a fan motor (18) is installed in the mounting groove (17), and an air guide port (19) is installed on the front side of the mounting groove (17), the air guide port (19) comprises an air guide cylinder (110) and a fin plate (111), and the fin plate (111) is arranged on a side close to the fan motor (18); The air guide tube (110) is conical, and the end with the widest diameter is close to the fan motor (18). The four corners of the air guide tube (110) and the fin plate (111) are provided with fixing holes, and the four corners of the side of the fan motor (18) close to the fin plate (111) are also provided with fixing holes. Long bolts are screwed into the fixing holes, and the long bolts are screwed to the fan motor (18) from front to back. Paddle-shaped spoilers are arranged inside the fin plate (111), and the surfaces of the spoilers are arranged at an angle. The air guide tube (110) is conical, and the end with the widest diameter is close to the fan motor (18). The front end diameter of the air guide tube (110) is one fifth of the rear end diameter, and a hoop rib is arranged at the front end of the air guide tube (110).

2. A portable fan according to claim 1, characterized in that: The left and right sides of the front end of the machine box (10) are both provided with concave grooves, and a holding plate (14) is provided in each of the concave grooves. Two latches are provided on the holding plate (14) near the machine box (10), and the two latches are respectively plugged into the upper box cover (11) and the lower box cover (12).

3. A portable fan according to claim 1, characterized in that: Batteries (16) are symmetrically arranged on the left and right sides of the installation groove (17), and the batteries (16) are clamped on the left and right sides of the fan motor (18). A heat insulation baffle is arranged near the batteries (16) and the fan motor (18).

4. A portable fan according to claim 1, characterized in that: The left and right sides of the machine box (10) are both provided with control switches, and the control switches are electrically connected to the batteries (16) on the left and right sides; the air guide tube (110) abuts forwardly against the rear side of the prismatic hole of the protective cover (13).

5. A portable fan according to claim 1, characterized in that: The upper box cover (11) is clamped downwardly on the top of the fan motor (18), and an air inlet is provided at the rear end of the machine box (10).

Images