Current out-of-limit starting fan

Abstract

The utility model relates to the technical field of fans, in particular to a current out-of-limit starting fan which comprises a fan body, a motor is fixedly connected to the rear side of the inner side of the fan body, and an output shaft of the motor is connected with an impeller. The four groups of inserting grooves formed in the outer surface of the fixing ring are aligned with the positioning rods fixedly connected to the front side of the fan body, so that the positioning rods are connected with the inserting grooves in an inserted mode, meanwhile, the mounting ring is slidably connected to the inner side of the mounting groove, the positioning rods and the protective net are preliminarily mounted to the front side of the fan body, and then the screw rod is rotated to fix the fan body. The sliding blocks slide downwards on the inner sides of the sliding grooves, so that the sliding plates and the fixing rods are driven to move downwards, the fixing rods are connected with the fan body and the fixing grooves formed in the upper surface of the mounting ring in an inserted mode, the fixing ring and the protective net are tightly mounted on the fan body, the fan body can be rapidly disassembled, and the fan is maintained; and the fan can be quickly recovered.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field, concretely is a current over -limit starting fan. BACKGROUND

[0002] Current over -limit starting fan is a protective measure, when the current exceeds the set safety value when fan starts or runs, to prevent equipment damage, the system will automatically start the protection mechanism, limit or cut off the current, ensure the safety of fan and the whole system.

[0003] Traditional data center low voltage incoming line cabinet cabinet fan uses temperature controller to start cabinet heat dissipation fan, temperature monitoring is not sensitive enough and can not accurately reflect the temperature of copper bar, data center is generally 2N architecture, that is, the load rate of each incoming line is 50%, once a certain incoming line fails, the load rate is 100%, which requires the cabinet fan to start in time to control temperature rise.

[0004] However, the existing fan cannot be disassembled in time when the fan fails during use, thereby affecting the maintenance of the fan, because the protective net of the fan is usually welded or fixedly connected on the fan through bolts. UTILITY MODEL CONTENTS

[0005] The utility model discloses a current over -limit starting fan to solve the problem of the maintenance of the fan due to the protective net of the fan being usually welded or fixedly connected on the fan through bolts when the fan fails.

[0006] To achieve the above object, the utility model provides the following technical scheme, a current over -limit starting fan, including the fan body, the back of the inboard of fan body is fixedly connected with motor, the output shaft of motor is connected with impeller, the front of fan body is equipped with the installation groove, the inboard of installation groove is slidably connected with the installation ring, the outer surface of installation ring is equipped with the fixed ring, the outer surface of fixed ring is equipped with the insertion slot, the inboard of insertion slot is insertedly connected with the positioning rod, the inboard of fixed ring is fixedly connected with the protective net, the upper surface of fan body is fixedly connected with the fixed column, the inboard of fixed column is equipped with the sliding slot, the inboard of sliding slot is slidably connected with the sliding block, the inboard of sliding block is threadedly connected with the lead screw, the outer surface of lead screw is fixedly connected with the sliding plate, the lower surface of sliding plate is fixedly connected with the fixed rod, the outer surface of fixed rod is slidably connected with the fixed slot.

[0007] Preferably, the middle part of the protective net is fixedly connected with a connecting column, the outer surface of the connecting column is slidably connected with a connecting ring, the upper surface of the connecting ring is fixedly connected with a cleaning plate, the outer surface of the cleaning plate is fixedly connected with a cleaning brush, the upper and lower surfaces of the connecting column are provided with connecting grooves, the inner side of the connecting grooves is fixedly connected with springs, and the upper surface of the spring is fixedly connected with a limiting plate.

[0008] Preferably, the installation groove is an annular groove, the installation groove is arranged on the front outer surface of the fan body, the installation ring is arc-shaped, the positioning rod is rod-shaped, the positioning rod is fixedly connected below the installation groove on the front outer surface of the fan body, the fixing ring is annular, the outer surface of the fixing ring is provided with four groups of insertion grooves, and the insertion grooves are matched with the positioning rods.

[0009] Preferably, the fixing column is a cuboid, the sliding groove is a T-shaped groove, and the sliding block is a convex block. The fixing column is fixedly connected to the fan body in four groups. After the installation ring is slidably connected to the inner side of the installation groove, the sliding block is driven to slide downward in the sliding groove by rotating the lead screw, so that the sliding plate and the fixing rod are moved downward and inserted into the fixing groove.

[0010] Preferably, the sliding plate is plate-shaped, the sliding plate is slidably connected to the outer surface of the fixing column, the fixing rod is rod-shaped, the positions of the installation ring and the fan body corresponding to the fixing rod are also provided with all the fixing grooves. The fixing rod is inserted into the fixing groove, so that the installation ring is fixedly connected to the inner side of the installation groove, and the fixing ring and the protective net are tightly fixedly connected to the front outer surface of the fan body.

[0011] Preferably, the connecting column is cylindrical, the connecting ring is annular, the cleaning plate is rod-shaped, the cleaning plate is fixedly connected to the connecting ring in four groups, the cleaning brush is fixedly connected to the outer surface of the cleaning plate in multiple groups, and the cleaning brush is in contact with the protective net. After the fan body works for a long time, a large amount of dust will adhere to the protective net. By rotating the cleaning plate, the four cleaning plates are driven to rotate synchronously, so that the dust on the protective net is wiped by the cleaning brush, preventing too much dust on the protective net from affecting the performance of the fan.

[0012] Preferably, the connecting groove is an arc-shaped groove, the spring is spiral-shaped, and the limiting plate is arc-shaped. The spring is fixedly connected between the inner side of the connecting groove and the limiting plate. Its function is to press the two sets of limiting plates, causing the limiting plates to slide into the inner side of the connecting groove, and then slide the connecting ring and the connecting post to make the connecting ring contact the protective net. Under the elastic action of the spring, the limiting plate will quickly return to its original position, thereby limiting the connecting ring between the connecting post and the protective net, thus installing the connecting ring onto the outer surface of the connecting post. At the same time, it also facilitates the disassembly of the connecting ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By aligning the four slots on the outer surface of the fixing ring with the positioning rod fixedly connected to the front of the fan body, the positioning rod is inserted into the slot. At the same time, the mounting ring slides to the inside of the mounting groove, initially installing the positioning rod and the protective net onto the front of the fan body. Then, by rotating the lead screw, the slider slides downwards on the inside of the slide groove, thereby driving the slide plate and the fixing rod downwards. This allows the fixing rod to insert into the fixing groove on the upper surface of the fan body and the mounting ring, thus tightly installing the fixing ring and the protective net onto the fan body. When it is necessary to disassemble the fixing ring and the protective net, the operation is reversed, allowing for quick disassembly and maintenance of the fan, enabling the fan to quickly resume operation.

[0015] By pressing the two sets of limiting plates, the limiting plates slide into the inner side of the connecting groove, and then the connecting ring and the connecting column are slidably connected, so that the connecting ring contacts the protective net. Under the elastic action of the spring, the limiting plates will quickly return to their original position, thereby limiting the connecting ring between the connecting column and the protective net. After the fan body has been operating for a long time, a lot of dust will adhere to the protective net. By rotating the cleaning plate, the cleaning plate drives the four sets of cleaning plates to rotate synchronously, thereby wiping the dust on the protective net with the cleaning brush, preventing excessive dust on the protective net from affecting the performance of the fan. Attached Figure Description

[0016] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A three-dimensional schematic diagram of the internal structure of the medium-sized wind turbine body;

[0018] Figure 3 This utility model Figure 1 A three-dimensional structural diagram of the central protective netting;

[0019] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A;

[0020] Figure 5 For the utility model Figure 3 The structure amplification schematic view of B in the middle;

[0021] Figure 6 The circuit diagram of the current over-limit starting fan of the utility model.

[0022] In the drawing: 1, fan body; 2, motor; 3, impeller; 4, mounting groove; 5, mounting ring; 6, fixed ring; 7, insertion slot; 8, positioning rod; 9, protective net; 10, fixed column; 11, sliding groove; 12, sliding block; 13, screw rod; 14, sliding plate; 15, fixed rod; 16, fixed groove; 17, connecting column; 18, connecting ring; 19, cleaning plate; 20, cleaning brush; 21, connecting groove; 22, spring; 23, limiting plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-6 An embodiment provided by the utility model:

[0025] A kind of current over-limit starting fan, including fan body 1, the inner side rear side of fan body 1 is fixedly connected with motor 2, the output shaft of motor 2 is connected with impeller 3, the front side of fan body 1 is set up with mounting groove 4, the inner side of mounting groove 4 is slidably connected with mounting ring 5, the outer surface of mounting ring 5 is set up with fixed ring 6, the outer surface of fixed ring 6 is set up with insertion slot 7, the inner side of insertion slot 7 is insertedly connected with positioning rod 8, the inner side of fixed ring 6 is fixedly connected with protective net 9, the upper surface of fan body 1 is fixedly connected with fixed column 10, the inner side of fixed column 10 is set up with sliding groove 11, the inner side of sliding groove 11 is slidably connected with sliding block 12, the inner side of sliding block 12 is threadedly connected with screw rod 13, the outer surface of screw rod 13 is fixedly connected with sliding plate 14, the lower surface of sliding plate 14 is fixedly connected with fixed rod 15, the outer surface of fixed rod 15 is slidably connected with fixed groove 16.

[0026] Further, the middle part of protective net 9 is fixedly connected with connecting column 17, the outer surface of connecting column 17 is slidably connected with connecting ring 18, the upper surface of connecting ring 18 is fixedly connected with cleaning plate 19, the outer surface of cleaning plate 19 is fixedly connected with cleaning brush 20, the upper and lower surfaces of connecting column 17 are set up with connecting groove 21, the inner side of connecting groove 21 is fixedly connected with spring 22, the upper surface of spring 22 is fixedly connected with limiting plate 23.

[0027] Further, the mounting groove 4 is an annular groove, the mounting groove 4 is arranged on the front outer surface of the fan body 1, the mounting ring 5 is arc-shaped, the positioning rod 8 is rod-shaped, the positioning rod 8 is fixedly connected to the lower side of the front outer surface of the fan body 1 close to the mounting groove 4, the fixing ring 6 is annular, the outer surface of the fixing ring 6 is provided with four groups of insertion grooves 7, the insertion grooves 7 are matched with the positioning rod 8, the four groups of insertion grooves 7 on the outer surface of the fixing ring 6 are aligned with the positioning rod 8 fixedly connected to the front side of the fan body 1, so that the positioning rod 8 is insertedly connected with the insertion groove 7, at the same time, the mounting ring 5 is slidingly connected to the inner side of the mounting groove 4, the positioning rod 8 and the protective net 9 are preliminarily installed to the front side of the fan body 1, so that the positions of the four groups of fixing grooves 16 can face the four groups of fixing rods 15, and subsequent installation is facilitated.

[0028] Further, the fixing column 10 is cuboid-shaped, the sliding groove 11 is a “T”-shaped groove, the sliding block 12 is a “convex” block, the fixing column 10 is fixedly connected to the fan body 1, after the mounting ring 5 is slidingly connected to the inner side of the mounting groove 4, the screw rod 13 is rotated, the sliding block 12 is slid downward in the inner side of the sliding groove 11, so as to drive the sliding plate 14 and the fixing rod 15 to move downward and be insertedly connected with the fixing groove 16.

[0029] Further, the sliding plate 14 is plate-shaped, the sliding plate 14 is slidingly connected to the outer surface of the fixing column 10, the fixing rod 15 is rod-shaped, the positions of the mounting ring 5 and the fan body 1 corresponding to the fixing rod 15 are also provided with the fixing groove 16, the fixing rod 15 is insertedly connected with the fixing groove 16, so as to fix the mounting ring 5 to the inner side of the mounting groove 4, so as to tightly fix the fixing ring 6 and the protective net 9 to the front outer surface of the fan body 1.

[0030] Further, the connecting column 17 is cylindrical, the connecting ring 18 is annular, the cleaning plate 19 is rod-shaped, the cleaning plate 19 is fixedly connected to the connecting ring 18, the cleaning brush 20 is fixedly connected to the outer surface of the cleaning plate 19, the cleaning brush 20 is in contact with the protective net 9, when the fan body 1 works for a long time, a large amount of dust is attached to the protective net 9, the cleaning plate 19 is rotated, the four groups of cleaning plates 19 are synchronously rotated, the dust on the protective net 9 is wiped by the cleaning brush 20, so as to prevent too much dust on the protective net 9 from affecting the performance of the fan.

[0031] Further, the connecting groove 21 is an arc-shaped groove, the spring 22 is a spiral shape, the limiting plate 23 is an arc-shaped plate, the spring 22 is fixedly connected between the inner side of the connecting groove 21 and the limiting plate 23, and the spring 22 is used for sliding into the inner side of the connecting groove 21 by pressing the two limiting plates 23, slidingly connecting the connecting ring 18 and the connecting column 17, and making the connecting ring 18 contact the protective net 9, so that the limiting plate 23 is quickly reset under the elastic force of the spring 22, thereby limiting the connecting ring 18 between the connecting column 17 and the protective net 9, and installing the connecting ring 18 to the outer surface of the connecting column 17, and facilitating the disassembly of the connecting ring 18.

[0032] Further, the fan is started for the 2N architecture low-voltage incoming line cabinet, the incoming line cabinet is provided with a power meter, a current over-limit function is developed, a temperature controller or an additional CT and current relay combination is omitted, the fan is provided with two paths, and the single fan loop failure does not affect the overall heat dissipation effect; the current over-limit setting is 50% of the load, and the temperature rise of the copper bar in the cabinet is not over the value.

[0033] Working principle: the motor 2 is fixedly connected to the inner side of the rear side of the fan body 1, the output shaft of the motor 2 is connected with the impeller 3, the front side of the fan body 1 is provided with the mounting groove 4, the inner side of the mounting groove 4 is slidably connected with the mounting ring 5, the outer surface of the mounting ring 5 is provided with the fixing ring 6, the outer surface of the fixing ring 6 is provided with the insertion slot 7, the inner side of the insertion slot 7 is insertedly connected with the positioning rod 8, the inner side of the fixing ring 6 is fixedly connected with the protective net 9, the upper surface of the fan body 1 is fixedly connected with the fixing column 10, the inner side of the fixing column 10 is provided with the sliding groove 11, the inner side of the sliding groove 11 is slidably connected with the sliding block 12, the inner side of the sliding block 12 is threadedly connected with the lead screw 13, the outer surface of the lead screw 13 is fixedly connected with the sliding plate 14, the lower surface of the sliding plate 14 is fixedly connected with the fixing rod 15, the outer surface of the fixing rod 15 is slidably connected with the fixing groove 16, the four insertion slots 7 provided on the outer surface of the fixing ring 6 are aligned with the positioning rods 8 fixedly connected to the front side of the fan body 1, so that the positioning rods 8 are insertedly connected with the insertion slots 7, the mounting ring 5 is slidably connected to the inner side of the mounting groove 4, the positioning rods 8 and the protective net 9 are preliminarily installed to the front side of the fan body 1, the lead screw 13 is rotated, the sliding block 12 is slid downward in the sliding groove 11, the sliding plate 14 and the fixing rod 15 are driven to move downward, the fixing rod 15 is insertedly connected with the fixing groove 16 provided on the upper surface of the fan body 1 and the mounting ring 5, the fixing ring 6 and the protective net 9 are tightly installed to the fan body 1, when the fixing ring 6 and the protective net 9 need to be disassembled, reverse operation is performed, so that the fixing ring 6 and the protective net 9 can be quickly disassembled, the fan can be maintained, and the fan can quickly resume operation.

[0034] By fixing and connecting with the connecting column 17 in the middle of the protective net 9, the outer surface of the connecting column 17 is slidably connected with the connecting ring 18, the upper surface of the connecting ring 18 is fixedly connected with the cleaning plate 19, the outer surface of the cleaning plate 19 is fixedly connected with the cleaning brush 20, the upper and lower surfaces of the connecting column 17 are provided with the connecting groove 21, the inner side of the connecting groove 21 is fixedly connected with the spring 22, the upper surface of the spring 22 is fixedly connected with the limiting plate 23, by pressing the two groups of limiting plates 23, the limiting plate 23 is slidably connected into the inner side of the connecting groove 21, the connecting ring 18 is slidably connected with the connecting column 17, the connecting ring 18 is contacted with the protective net 9, under the elastic action of the spring 22, the limiting plate 23 is quickly reset, thereby limiting the connecting ring 18 between the connecting column 17 and the protective net 9, after the fan body 1 is operated for a long time, a large amount of dust is adhered on the protective net 9, by rotating the cleaning plate 19, the cleaning plate 19 drives the four groups of cleaning plate 19 to rotate synchronously, thereby the dust on the protective net 9 is wiped by the cleaning brush 20, the dust on the protective net 9 is prevented from being too much, thereby affecting the performance of the fan.

[0035] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments but can be implemented in other embodiments without departing from the spirit or essential characteristics of the application. Thus, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims.

Claims

1. A current over-limit starting fan, comprising a fan body (1), characterized in that: A motor (2) is fixedly connected to the inner rear side of the fan body (1). An impeller (3) is connected to the output shaft of the motor (2). A mounting groove (4) is provided on the front side of the fan body (1). A mounting ring (5) is slidably connected to the inner side of the mounting groove (4). A fixing ring (6) is provided on the outer surface of the mounting ring (5). A slot (7) is provided on the outer surface of the fixing ring (6). A positioning rod (8) is inserted into the inner side of the slot (7). A protective device is fixedly connected to the inner side of the fixing ring (6). Net (9), the upper surface of the fan body (1) is fixedly connected to a fixed column (10), the inner side of the fixed column (10) is provided with a sliding groove (11), the inner side of the sliding groove (11) is slidably connected to a slider (12), the inner side of the slider (12) is threadedly connected to a lead screw (13), the outer surface of the lead screw (13) is fixedly connected to a sliding plate (14), the lower surface of the sliding plate (14) is fixedly connected to a fixed rod (15), the outer surface of the fixed rod (15) is slidably connected to a fixed groove (16).

2. A current over-limit start-up fan according to claim 1, characterized in that: A connecting post (17) is fixedly connected to the middle of the protective net (9). A connecting ring (18) is slidably connected to the outer surface of the connecting post (17). A cleaning plate (19) is fixedly connected to the upper surface of the connecting ring (18). A cleaning brush (20) is fixedly connected to the outer surface of the cleaning plate (19). A connecting groove (21) is provided on the upper and lower surfaces of the connecting post (17). A spring (22) is fixedly connected to the inner side of the connecting groove (21). A limit plate (23) is fixedly connected to the upper surface of the spring (22).

3. A current over-limit start-up fan according to claim 2, characterized in that: The mounting groove (4) is an annular groove. The mounting groove (4) is opened on the front outer surface of the fan body (1). The mounting ring (5) is arc-shaped. The positioning rod (8) is rod-shaped. The positioning rod (8) is fixedly connected to the lower part of the front outer surface of the fan body (1) near the mounting groove (4). The fixing ring (6) is annular. The outer surface of the fixing ring (6) is provided with four sets of slots (7). The slots (7) are adapted to the positioning rod (8).

4. A current over-limit starting fan according to claim 3, characterized in that: The fixed column (10) is rectangular in shape, the sliding groove (11) is a "T" shaped groove, the slider (12) is a "convex" shaped block, and the fixed column (10) is fixedly connected to the fan body (1) in four groups.

5. A current over-limit starting fan according to claim 4, characterized in that: The slide plate (14) is plate-shaped and is slidably connected to the outer surface of the fixed column (10). The fixed rod (15) is rod-shaped. The mounting ring (5) and the fan body (1) are also provided with all the fixing grooves (16) corresponding to the fixed rod (15).

6. A current over-limit start-up fan according to claim 2, characterized in that: The connecting column (17) is cylindrical, the connecting ring (18) is annular, the cleaning plate (19) is rod-shaped, the cleaning plate (19) is fixedly connected to the connecting ring (18) in four groups, and the cleaning brush (20) is fixedly connected to the outer surface of the cleaning plate (19) in multiple groups. The cleaning brush (20) is in contact with the protective net (9).

7. A current over-limit starting fan according to claim 6, characterized in that: The connecting groove (21) is an arc-shaped groove, the spring (22) is a spiral shape, the limiting plate (23) is an arc-shaped plate, and the spring (22) is fixed to connect the inner side of the connecting groove (21) and the limiting plate (23).

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