CN212202551U - A DC cooling fan - Google Patents

Abstract

The utility model discloses a DC cooling fan, which relates to the technical field of cooling equipment, comprising a first fan board, a second fan board and a connecting board, which is characterized in that the left side of the connecting board is rotatably connected with the first fan board The beneficial effect is: by setting the first switch and the second switch to be controlled respectively, the number of cooling fans can be adjusted according to the needs, and the first fan plate and the second fan plate are set to be connected with the connecting plate through hinges, and the support rod Support, can change the state of use, better meet the needs of use; set the first slide bar and the second slide bar sliding support, the first support spring and the second support spring increase the friction, realize the first slide bar and the second slide bar The locking can ensure the use state of the first fan board and the second fan board.

Description

A DC cooling fan

technical field

The utility model relates to the technical field of heat dissipation equipment, in particular to a direct current heat dissipation fan.

Background technique

As we all know, the setting of DC cooling fans is to solve the heat dissipation problem of household appliances such as computers, refrigerators, printers, and air evolution devices. In fact, the role of cooling fans in industrial manufacturing is really not small. According to incomplete statistics, cooling fans are used in industry. The proportion is much larger than that of household appliances. A cooling fan is not only the "lung" of the machine, but also a good helper for extending the life of the machine. The general function of the cooling fan can be said to be to cool the motor and provide a cool working environment.

At present, the DC cooling fans on the market have a simple structure, are generally fixed installations, and have a single function and purpose, which cannot well meet the needs of people.

Utility model content

The purpose of the present invention is to provide a DC cooling fan in order to solve the above problems.

The utility model realizes the above-mentioned purpose through the following technical solutions:

A DC cooling fan includes a first fan plate, a first DC cooling fan, a first switch, a first groove, a first push block, a connecting plate, a battery, a second push block, a second fan plate, a second push block, and a second fan plate. DC cooling fan, second groove, second switch, first sliding groove, first movable groove, first supporting spring, first sliding bar, first slot, supporting groove, storage groove, supporting rod, second The sliding groove, the second sliding bar, the second supporting spring, the second movable groove and the second slot are characterized in that: the left side of the connecting plate is rotatably connected with the first fan plate, and the first fan plate is rotatably connected to the left side. The first groove is arranged in the middle of the surface, the first switch is fixedly installed in the first groove, and the first DC cooling fan is respectively set at the front and back of the first groove. The support groove is arranged in the middle of the lower surface of the fan plate; the second fan plate is rotatably connected to the right side of the connecting plate, and the second groove is arranged in the middle of the upper surface of the second fan plate. The second switch is fixedly installed in the two grooves, and the second DC cooling fans are respectively arranged in the front and rear of the second groove; the battery is arranged inside the connecting plate, and the lower surface of the connecting plate is arranged in the middle There is the storage slot, the support rod is arranged in the storage slot, the right end of the support rod is rotatably connected with the connecting plate, and the first chute is provided on the left side of the front and rear ends of the connecting plate, so The first sliding bar is arranged in the first sliding slot, the first sliding bar slides in the first sliding slot, and the first movable slot is arranged on the first sliding bar, and the first sliding bar slides in the first sliding slot. A movable groove is provided with the first push block and the first support spring, and both ends of the first support spring are fixedly connected to the first slide bar and the first push block, respectively. The push block extends out of the connecting plate, the two ends of the connecting plate are provided with openings corresponding to the first push block, and the part of the first push block located in the connecting plate is clamped in the corresponding opening of the connecting plate to move. , the first fan board is provided with the first slot corresponding to the first slide bar, the second chute is provided on the right side of the front and rear ends of the connecting plate, and the second chute is provided with The second sliding bar slides in the second sliding slot, the second sliding bar is provided with the second movable slot, and the second movable slot is provided with the A second push block and the second support spring, both ends of the second support spring are fixedly connected to the second slide bar and the second push block, respectively, and the second push block extends out of the connecting plate , the two ends of the connecting plate are provided with openings corresponding to the second push block, the part of the second push block located in the connecting plate is clamped in the corresponding opening of the connecting plate, and the second fan plate corresponds to The second slide bar is provided with the second slot; the first switch and the second switch are respectively electrically connected to the battery, and the first DC cooling fan is electrically connected to the first switch. electrically connected, the second DC cooling fan is electrically connected with the second switch.

Preferably, both the first DC cooling fan and the second DC cooling fan include an upper filter screen, a lower filter screen, a support frame, a motor and a fan blade.

Preferably, the lower edge on the right side of the first fan board is connected with the lower edge on the left side of the connecting board through a hinge, and the lower edge on the left side of the second fan board is connected with the lower edge on the right side of the connecting board through a hinge .

Preferably, teeth are provided in the support groove.

Preferably, one end of the first slide bar close to the first fan plate is set as a round head, and one end of the second slide bar close to the second fan plate is set as a round head.

Preferably, protruding strips are provided on the surfaces of the first push block and the second push block.

The beneficial effect is that: by setting the first switch and the second switch to be controlled respectively, the number of cooling fans can be adjusted according to requirements, and the first fan board and the second fan board are respectively connected with the connecting board through hinges, and the support rod supports , can switch the use state to better meet the needs of use; set the first slide bar and the second slide bar sliding support, the first support spring and the second support spring increase the friction, realize the first slide bar and the second slide bar Locking can ensure the use state of the first fan board and the second fan board; by folding the first fan board and the connecting board and the second fan board, the DC fan can be used to relieve the heat.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic top view of a DC cooling fan according to the present invention.

FIG. 2 is a front view of a DC cooling fan according to the present invention.

3 is a bottom view of a DC cooling fan according to the present invention.

4 is an A-A sectional view of a DC cooling fan according to the present invention.

FIG. 5 is an enlarged view of part B of a DC cooling fan according to the present invention.

FIG. 6 is an enlarged view of the position C of a DC cooling fan according to the present invention.

FIG. 7 is a schematic diagram of the use of a DC cooling fan according to the present invention.

The reference numerals are explained as follows:

1. The first fan board; 2. The first DC cooling fan; 3. The first switch; 4. The first groove; 5. The first push block; block; 9, the second fan plate; 10, the second DC cooling fan; 11, the second groove; 12, the second switch; 13, the first chute; 14, the first movable groove; 15, the first support spring ; 16, the first slide; 17, the first slot; 18, the support groove; 19, the receiving slot; 20, the support rod; 21, the second slide; 23, the second slide; 24, the second support spring; 25, the second movable slot; 26, the second slot.

Detailed ways

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "horizontal", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility. The new and simplified description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, should not be construed as a limitation to the present invention, in addition, the terms "first", "second" "two" and the like are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or the number of indicated technical features, thus, the features defined with "first", "second", etc. Or implicitly include one or more of the features, in the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Removal connection, or integral connection; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be internal communication between two components, for those of ordinary skill in the art , the specific meanings of the above terms in the present invention can be understood through specific situations.

Below in conjunction with accompanying drawing, the technical scheme of the present utility model is further explained:

As shown in Figures 1-7, a DC cooling fan includes a first fan plate 1, a first DC cooling fan 2, a first switch 3, a first groove 4, a first push block 5, and a connecting plate 6 , battery 7, second push block 8, second fan plate 9, second DC cooling fan 10, second groove 11, second switch 12, first chute 13, first movable groove 14, first support spring 15. The first sliding bar 16, the first slot 17, the supporting groove 18, the receiving groove 19, the supporting rod 20, the second sliding groove 21, the second sliding bar 23, the second supporting spring 24, the second movable groove 25 and the second slot 26, characterized in that: the left side of the connecting plate 6 is rotatably connected with a first fan plate 1, the first fan plate 1 is used for connection, and a first groove 4 is provided in the middle of the upper surface of the first fan plate 1, The first switch 3 is fixedly installed in the first groove 4 , and the first switch 3 is arranged in the first groove 4 to avoid the accidental touch of the first switch 3 higher than the surface of the first fan plate 1 . A first DC cooling fan 2 is respectively provided, the first DC cooling fan 2 is used for blowing air, and a support groove 18 is provided in the middle of the lower surface of the first fan plate 1, and the support groove 18 is used for convenient support; A second fan plate 9 is connected to the side rotatably. The second fan plate 9 is used for connection. The upper surface of the second fan plate 9 is provided with a second groove 11 in the middle. The second groove 11 is used to facilitate support. The second groove 11 A second switch 12 is fixedly installed inside, the second switch 12 is arranged in the second groove 11 to prevent the second switch 12 from being higher than the surface of the second fan plate 9 and the second switch 12 is higher than the surface of the second fan plate 9. The DC cooling fan 10, the second DC cooling fan 10 is used to blow air; the connecting plate 6 is provided with a battery 7 inside, the battery 7 is used for power supply, and a storage groove 19 is arranged in the middle of the lower surface of the connecting plate 6, and the storage groove 19 is used for storage, storage A support rod 20 is arranged in the groove 19, the support rod 20 is used for support, the right end of the support rod 20 is rotatably connected with the connecting plate 6, and the left side of the front and rear ends of the connecting plate 6 is provided with a first chute 13, the first chute 13 is used for Sliding, the first sliding slot 13 is provided with a first sliding bar 16, the first sliding bar 16 is used to limit the rotation, the first sliding bar 16 slides in the first sliding slot 13, and the first sliding bar 16 is provided with a first sliding bar 16. The movable slot 14, the first movable slot 14 is used for movement, the first movable slot 14 is provided with a first push block 5 and a first support spring 15, the first push block 5 is used to push and pull, and the first support spring 15 is used to support Reset, the two ends of the first support spring 15 are fixedly connected to the first slider 16 and the first push block 5 respectively, the first push block 5 extends out of the connecting plate 6, and the two ends of the connecting plate 6 are provided with openings corresponding to the first push block 5 , the part of the first push block 5 located in the connecting plate 6 is stuck in the corresponding opening of the connecting plate 6 to move, and the first fan plate 1 is provided with a first slot 17 corresponding to the first slider 16, and the first slot 17 is used for convenience Insertion, the connecting plate 6 is provided with a second chute 21 on the right side of the front and rear ends, the second chute 21 is used for sliding, and a second sliding bar 23 is arranged in the second sliding slot 21, and the second sliding bar 23 is used to restrict the rotation , the second slider 23 slides in the second slot 21, the second The slide bar 23 is provided with a second movable slot 25, the second movable slot 25 is used to limit the movement, the second movable slot 25 is provided with a second push block 8 and a second support spring 24, and the second push block 8 is used to push and pull , the second support spring 24 is used to support the reset, the two ends of the second support spring 24 are fixedly connected with the second slide bar 23 and the second push block 8 respectively, the second push block 8 extends out of the connecting plate 6, and both ends of the connecting plate 6 Corresponding to the second push block 8 is provided with an opening, the part of the second push block 8 located in the connecting plate 6 is stuck in the corresponding opening of the connecting plate 6 to move, and the second fan plate 9 is provided with a second slot 26 corresponding to the second sliding bar 23 , the second slot 26 is used to facilitate insertion; the first switch 3 and the second switch 12 are electrically connected to the battery 7 respectively, the first DC cooling fan 2 is electrically connected to the first switch 3, and the second DC cooling fan 10 It is electrically connected with the second switch 12; the first DC cooling fan 2 and the second DC cooling fan 10 both include an upper filter screen, a lower filter screen, a support frame, a motor and a fan blade; a lower filter screen is arranged under the support frame, The lower filter is used for filtering, the motor is fixedly installed on the support frame, the motor is used to drive, the output end of the motor is fixedly installed with a fan blade, the fan blade is used for fan air, the upper filter screen is set above the fan blade, and the upper filter screen is installed. It is used to protect and avoid touching the fan blades. The lower edge on the right side of the first fan board 1 is connected with the lower edge on the left side of the connecting board 6 through hinges, and the upper edge on the left side of the second fan board 9 and the upper edge on the right side of the connecting board 6 pass through. Hinge connection; teeth are provided in the support groove 18, which is convenient for the support plate to support; the end of the first slider 16 close to the first fan plate 1 is set as a round head, which is convenient for the first slider 16 to be inserted into the first slot 17, One end of the second sliding bar 23 close to the second fan plate 9 is set as a round head, so that the second sliding bar 23 can be inserted into the second slot 26 easily. contact friction.

Working principle: When in use, the battery 7 is powered on, controlled by the first switch 3 and the second switch 12, and the first DC cooling fan 2 or the second DC cooling fan 10 is turned on as needed. When the second DC cooling fan 10 works at the same time, the first push block 5 is pressed, the first support spring 15 is compressed, the contact surfaces of the first push block 5 and the first chute 13 are separated, and the first push block 5 is pushed, and the first slide 16 Push into the first slot 17, loosen the first push block 5, the first support spring 15 supports, the first push block 5 and the first chute 13 are in contact to increase friction and reduce the movement of the first push block 5. Similarly, Press the second push block 8, the second support spring 24 is compressed, the contact surfaces of the second push block 8 and the second chute 21 are separated, push the second push block 8, the second slider 23 is pushed into the second slot 26, loosen the Open the second push block 8, the second support spring 24 supports, the contact between the second push block 8 and the second chute 21 increases friction, reduces the movement of the second push block 8, and the first fan plate 1 and the connecting plate 6 pass through the first slide The support connection of the strip 16 restricts the rotation, and the second fan plate 9 and the connecting plate 6 restrict the rotation through the support connection of the second sliding bar 23, so as to realize that the first fan plate 1, the connecting plate 6 and the second fan plate 9 are fixed in the unfolded state , the first DC cooling fan 2 and the second DC cooling fan 10 can work at the same time to improve the heat dissipation efficiency; when the heat dissipation is not required, the first push block 5 can be pressed, the first support spring 15 is compressed, and the first push block 5 and the first push block 5 can be pressed. The contact surface of a sliding groove 13 is separated, the first push block 5 is pulled back, the first sliding bar 16 is pulled back into the first sliding groove 13, the first push block 5 is released, the first support spring 15 supports, and the first push block 5 Contact with the first chute 13 increases friction and reduces the movement of the first push block 5. Similarly, when the second push block 8 is pressed, the second support spring 24 is compressed, and the contact surfaces of the second push block 8 and the second chute 21 are separated. The second push block 8 is pulled back, the second slide bar 23 is pulled back into the second chute 21, the second push block 8 is released, the second support spring 24 supports, and the contact between the second push block 8 and the second chute 21 increases. friction, reduce the movement of the second push block 8, the second fan plate 9 can be lowered by folding, the connecting plate 6 is in the middle, and the first fan plate 1 is above, supported by the support rod 20 in the support groove 18, A fan board 1 is placed obliquely, the first switch 3 is turned on, the first DC cooling fan 2 works, and it becomes a DC fan that can help to cool off the heat.

The basic principles, main features and advantages of the present invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention There will also be various changes and improvements in the new model, which all fall within the scope of the claimed invention.

Claims (6)

1. A DC cooling fan, comprising a first fan plate (1), a first DC cooling fan (2), a first switch (3), a first groove (4), a first push block (5), connecting plate (6), battery (7), second push block (8), second fan plate (9), second DC cooling fan (10), second groove (11), second switch (12) , first chute (13), first movable slot (14), first support spring (15), first slide (16), first slot (17), support groove (18), storage slot (19), a supporting rod (20), a second sliding groove (21), a second sliding bar (23), a second supporting spring (24), a second movable groove (25) and a second slot (26), It is characterized in that: the left side of the connecting plate (6) is rotatably connected with the first fan plate (1), and the first groove (4) is provided in the middle of the upper surface of the first fan plate (1), The first switch (3) is fixedly installed in the first groove (4), and the first DC cooling fan (2) is respectively arranged in the front and rear of the first groove (4). The support groove (18) is provided in the middle of the lower surface of a fan plate (1); the second fan plate (9) is rotatably connected to the right side of the connecting plate (6), and the second fan plate (9) ) The middle of the upper surface is provided with the second groove (11), the second switch (12) is fixedly installed in the second groove (11), and the second groove (11) is respectively provided in the front and rear The second DC cooling fan (10) is provided; the battery (7) is arranged inside the connecting plate (6), and the receiving groove (19) is arranged in the middle of the lower surface of the connecting plate (6). The support rod (20) is arranged in the receiving groove (19), the right end of the support rod (20) is rotatably connected with the connecting plate (6), and the left side of the front and rear ends of the connecting plate (6) is provided with The first sliding slot (13), the first sliding bar (16) is provided in the first sliding slot (13), and the first sliding bar (16) is in the first sliding slot (13) ), the first sliding bar (16) is provided with the first movable groove (14), and the first movable groove (14) is provided with the first push block (5) and the A first support spring (15), two ends of the first support spring (15) are respectively fixedly connected with the first slide bar (16) and the first push block (5), the first push block ( 5) Extending the connecting plate (6), the two ends of the connecting plate (6) are provided with openings corresponding to the first push block (5), and the first push block (5) is located on the connecting plate ( 6) The part inside is stuck in the corresponding opening of the connecting plate (6) to move, and the first fan plate (1) is provided with the first slot (17) corresponding to the first sliding bar (16), The second chute (21) is provided on the right side of the front and rear ends of the connecting plate (6), and the second sliding bar (23) is provided in the second chute (21). The sliding bar (23) slides in the second sliding groove (21), and the second sliding bar (23) is provided with the second sliding bar (23). A movable groove (25), the second push block (8) and the second support spring (24) are arranged in the second movable groove (25), and the two ends of the second support spring (24) are respectively It is fixedly connected with the second slider (23) and the second push block (8), the second push block (8) extends out of the connecting plate (6), and the connecting plate (6) two The end corresponding to the second push block (8) is provided with an opening, and the part of the second push block (8) located in the connecting plate (6) is stuck in the corresponding opening of the connecting plate (6) to move, so The second fan plate (9) is provided with the second slot (26) corresponding to the second slider (23); the first switch (3) and the second switch (12) are respectively connected to the second slot (26). The battery (7) is electrically connected, the first DC cooling fan (2) is electrically connected to the first switch (3), and the second DC cooling fan (10) is electrically connected to the second switch ( 12) Electrical connection. 2 . The DC cooling fan according to claim 1 , wherein the first DC cooling fan ( 2 ) and the second DC cooling fan ( 10 ) both comprise an upper filter screen and a lower filter screen. 3 . , support frame, motor and fan blade. 3 . The DC cooling fan according to claim 1 , wherein the lower edge on the right side of the first fan plate ( 1 ) is connected with the lower edge on the left side of the connecting plate ( 6 ) through a hinge, so that the The upper edge on the left side of the second fan plate (9) is connected with the upper edge on the right side of the connecting plate (6) through a hinge. 4 . The DC cooling fan according to claim 1 , wherein teeth are provided in the support groove ( 18 ). 5 . 5. The DC cooling fan according to claim 1, characterized in that: one end of the first sliding bar (16) close to the first fan plate (1) is set as a round head, and the second sliding bar (23) One end close to the second fan plate (9) is set as a round head. 6 . The DC cooling fan according to claim 1 , wherein the surfaces of the first push block ( 5 ) and the second push block ( 8 ) are provided with convex strips. 7 .

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