Graphite long carbon brush cooling fan with reminding function

Abstract

The utility model discloses a graphite long carbon brush cooling fan with a reminding function, which comprises an integral unit, the integral unit comprises a fan frame and a servo motor fixed in the fan frame, the servo motor is provided with a controller, a commutator is arranged in a casing of the servo motor, the output end of the servo motor is fixedly connected with fan blades, and the fan blades are connected with the controller. The installation unit is arranged on the servo motor and used for installing a carbon brush into the servo motor, the trigger unit is arranged in the servo motor and used for triggering when the carbon brush is excessively consumed, and the reminding unit is arranged on the servo motor. According to the utility model, the trigger unit can keep a contact state with the spring carbon brush, and when the spring carbon brush is excessively consumed, the trigger unit is separated from the spring carbon brush, so that the reminding unit can send out reminding information at the first time to remind a user to carry out replacement operation as soon as possible.

Description

TECHNICAL FIELD

[0001] The utility model relates to carbon brush technical field especially, it relates to a graphite long carbon brush cooling fan with reminding function. BACKGROUND

[0002] The graphite long carbon brush cooling fan includes graphite long carbon brush and cooling fan, the graphite long carbon brush has good conductivity and lubricity, can reduce friction, improve the operating efficiency of motor, and the cooling fan is a kind of equipment that realizes cooling by air exchange, is widely used in vehicle, industrial machinery, electronic equipment and other fields, and its core function is to take away heat by forced convection, prevents equipment from being damaged or performance degradation due to overheating.

[0003] Carbon brush is used on the commutator or slip ring of motor, as the sliding contact body of export and import current, during the continuous rotation of commutator, carbon brush and its surface rub contact, and the mechanical wear caused by this can lead to the gradual consumption of carbon brush, however, the existing cooling fan lacks effective prompting function when carbon brush is excessively worn, and users are difficult to observe the wear degree of carbon brush, often until carbon brush is worn to affect the normal operation of motor, even cause motor failure, thereby there is defect, therefore, the graphite long carbon brush cooling fan with reminding function is provided. SUMMARY

[0004] This part aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part and the abstract of the specification and the utility model name to avoid obscuring the purpose of this part, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the problems existing in the prior art graphite long carbon brush cooling fan with reminding function, the utility model is provided.

[0006] Therefore, the utility model aims to provide a graphite long carbon brush cooling fan with reminding function, which is suitable for solving the problem that the existing cooling fan lacks effective prompting function when carbon brush is excessively worn, and users are difficult to observe the wear degree of carbon brush, often until carbon brush is worn to affect the normal operation of motor, even cause motor failure.

[0007] To solve the above technical problems, the utility model provides the following technical scheme: a graphite long carbon brush cooling fan with reminding function, comprising:

[0008] The overall unit includes a fan frame and a servo motor fixed in the fan frame, the servo motor is provided with a controller, the servo motor is provided with a commutator in the shell, and the output end of the servo motor is fixedly connected with a fan blade.

[0009] The installation unit is arranged on the servo motor, and is used for installing the carbon brush into the servo motor;

[0010] The trigger unit is arranged inside the servo motor, and is used for triggering when the carbon brush is excessively consumed;

[0011] The reminding unit is arranged on the servo motor, and is used for prompting to replace the carbon brush after the trigger unit is triggered.

[0012] As a preferred scheme of the graphite long carbon brush cooling fan with the reminding function, the installation unit comprises two cover plates fixed on the outer wall of the servo motor through bolts, the inner wall of the servo motor is fixedly connected with two rectangular frames penetrating through the servo motor, the two cover plates are respectively located at the openings of the two rectangular frames, and the spring carbon brushes are slidingly arranged in the two rectangular frames.

[0013] As a preferred scheme of the graphite long carbon brush cooling fan with the reminding function, the outer wall of the servo motor is fixedly connected with two limiting frames matched with the cover plates, and the two cover plates are slidingly arranged in the corresponding limiting frames.

[0014] As a preferred scheme of the graphite long carbon brush cooling fan with the reminding function, the trigger unit comprises a carbon brush contact piece, the carbon brush contact piece comprises two T-shaped rods slidingly penetrating into the servo motor, the inner wall of the servo motor is fixedly connected with two support plates, the two T-shaped rods sequentially penetrate through the corresponding support plates and rectangular frames, and are in contact with the corresponding spring carbon brushes, a disc is fixedly sleeved on each of the two T-shaped rods, the top of each of the two discs is fixedly connected with an expansion spring sleeved on the T-shaped rod, and a pressure sensor is fixedly connected to the bottom of each of the two support plates.

[0015] As a preferred scheme of the graphite long carbon brush cooling fan with the reminding function, the trigger unit further comprises a protection assembly, the protection assembly comprises two protection pipes connected to the outer wall of the servo motor, the top ends of the two T-shaped rods are respectively located in the two protection pipes, and a sealing cover is threadedly sleeved on the top end of each of the two protection pipes.

[0016] As a preferred scheme of the graphite long carbon brush cooling fan with the reminding function, the top of each of the two T-shaped rods protrudes to the outside of the protection pipe, and a gap is reserved between the top of each of the two T-shaped rods and the top of the inner cavity of the sealing cover.

[0017] As a preferred scheme of the graphite long carbon brush cooling fan with reminding function, the reminding unit comprises a horizontal block fixedly connected above the outer wall of the servo motor, and two indicator lamps are fixedly connected to the top of the horizontal block.

[0018] As a preferred scheme of the graphite long carbon brush cooling fan with reminding function, the reminding unit comprises a horizontal block fixedly connected above the outer wall of the servo motor, and two indicator lamps are fixedly connected to the top of the horizontal block.

[0019] The graphite long carbon brush cooling fan with reminding function has the beneficial effect that when the installation unit installs the spring carbon brush in the servo motor, the triggering unit can keep contact with the spring carbon brush, and when the spring carbon brush is excessively consumed, the triggering unit is separated from the spring carbon brush, so that the reminding unit can send reminding information in the first time to remind the user to replace the spring carbon brush as soon as possible. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0021] Figure 1 The graphite long carbon brush cooling fan with reminding function is a whole structure schematic view of the present application;

[0022] Figure 2 The cover plate and the limiting frame are a position relationship schematic view of the present application;

[0023] Figure 3 The servo motor is a cut internal structure schematic view of the present application;

[0024] Figure 4 The rectangular frame is a cut internal structure schematic view of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0026] 100, the whole unit; 101, the fan frame; 102, the servo motor; 103, the controller; 104, the commutator; 105, the fan blade;

[0027] 200, the installation unit; 201, the cover plate; 202, the rectangular frame; 203, the spring carbon brush; 204, the limiting frame;

[0028] 300, trigger unit; 301, carbon brush contact; 301a, T-shaped rod; 301b, support plate; 301c, disc; 301d, telescopic spring; 301e, pressure sensor; 302, protection assembly; 302a, protection tube; 302b, sealing cover;

[0029] 400, reminding unit; 401, horizontal block; 402, indicator light; 403, buzzer. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0031] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways beyond the specific details set forth herein without departing from the scope of the present application, and it is understood that the present application is not limited to the particular details described below.

[0032] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent of or mutually exclusive of other embodiments.

[0033] Thirdly, the present application is described in detail in conjunction with the schematic diagram. In the detailed description of the embodiments of the present application, the cross-sectional view of the device structure is partially enlarged without the general proportion for the convenience of description, and the schematic diagram is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual manufacturing.

[0034] Embodiment 1

[0035] Reference Figures 1-4 For the first embodiment of the present application, a graphite long carbon brush cooling fan with a reminding function is provided, which can remind the user to replace the carbon brush when the carbon brush is excessively consumed, which comprises: a whole unit 100, a mounting unit 200, a trigger unit 300 and a reminding unit 400;

[0036] Among them, the whole unit 100 includes a fan frame 101 and a servo motor 102 fixed in the fan frame 101, the servo motor 102 is provided with a controller 103, the servo motor 102 is provided with a commutator 104 in the shell, and the output end of the servo motor 102 is fixedly connected with a fan blade 105;

[0037] The installation unit 200 is arranged on the servo motor 102, and is used for installing the carbon brush into the servo motor 102;

[0038] The trigger unit 300 is arranged in the servo motor 102, and is used for triggering when the carbon brush is excessively consumed;

[0039] The reminding unit 400 is arranged on the servo motor 102, and is used for prompting the user to replace the carbon brush after the trigger unit 300 is triggered.

[0040] The fan frame 101 is composed of a support cylinder frame and a motor frame fixedly connected to the support cylinder frame, the servo motor 102 is fixed to one side of the motor frame, the servo motor 102 is used for driving the fan blade 105 to rotate, the controller 103 is at least internally provided with a signal receiving unit and a signal transmitting unit, the whole device is controlled by the controller 103, since the controller 103 is a commonly used device and belongs to the prior art, the electrical connection relationship and the specific circuit structure are not described here, the controller 103 is used for receiving the signal of the trigger unit 300 and sending the reminding information through the reminding unit 400;

[0041] The carbon brush is installed into the casing of the servo motor 102 through the installation unit 200, and at least two carbon brushes are in contact with the commutator 104, when the carbon brush is installed, the trigger unit 300 is used for keeping the carbon brush in the contact state, when the carbon brush is consumed to a certain degree, the trigger unit 300 can automatically separate from the carbon brush, when the trigger unit 300 separates from the carbon brush, a signal is sent to the controller 103, so that the controller 103 controls the reminding unit 400 to send a reminding signal, so as to prompt the user to replace the carbon brush in time.

[0042] Embodiment 2

[0043] Reference Figures 2-4 The second embodiment of the utility model is different from the previous embodiment, the installation unit 200 includes two cover plates 201 fixed on the outer wall of the servo motor 102 through bolts, the inner wall of the servo motor 102 is fixedly connected with two rectangular frames 202 penetrating the servo motor 102, the two cover plates 201 are respectively located at the openings of the two rectangular frames 202, and the spring carbon brushes 203 are slidingly arranged in the two rectangular frames 202.

[0044] Two rectangular frames 202 extend symmetrically to both sides of the commutator 104, the spring carbon brush 203 can slide into the rectangular frame 202 and contact the commutator 104, one side of the cover plate 201 is the arc surface matched with the servo motor 102, and the cover plate 201 is fixed on the rectangular frame 202 at the opening of the servo motor 102 through bolts, so as to prevent the spring carbon brush 203 from sliding out of the rectangular frame 202, the spring of the spring carbon brush 203 abuts against the cover plate 201, so that the carbon block of the spring carbon brush 203 is always in contact with the commutator 104 under the pushing of the spring.

[0045] In addition, the outer wall of the servo motor 102 is fixedly connected with two limiting frames 204 matched with the cover plate 201, and the two cover plates 201 are slidably arranged in the corresponding limiting frames 204.

[0046] The two limiting frames 204 are located at the openings of the two rectangular frames 202, and when the cover plate 201 is fixed on the outer wall of the servo motor 102, the cover plate 201 can be slidably inserted into the limiting frame 204 and prevented from being deviated, so that the cover plate 201 and the threaded hole of the servo motor 102 can be quickly aligned, and the cover plate 201 is fixed by bolts.

[0047] Embodiment 3

[0048] Reference Figures 2-4 For the third embodiment of the utility model, different from the previous embodiment, the trigger unit 300 includes a carbon brush contact 301, the carbon brush contact 301 includes two T-shaped rods 301a slidingly penetrating into the servo motor 102, the inner wall of the servo motor 102 is fixedly connected with two support plates 301b, the two T-shaped rods 301a sequentially penetrate the corresponding support plates 301b and rectangular frames 202, and are in contact with the corresponding spring carbon brushes 203, the two T-shaped rods 301a are fixedly sleeved with discs 301c, the top of the two discs 301c is fixedly connected with telescopic springs 301d sleeved on the T-shaped rods 301a, and the bottom of the two support plates 301b is fixedly connected with pressure sensors 301e.

[0049] When the spring carbon brush 203 is installed, first pull the T-shaped rod 301a upward, so that the T-shaped rod 301a does not block the spring carbon brush 203 from sliding in the rectangular frame 202, when the spring carbon brush 203 is placed in the rectangular frame 202, then release the T-shaped rod 301a, and make the disc 301c keep in contact with the sensing end at the bottom of the pressure sensor 301e, the pressure sensor 301e is a device or apparatus that can sense a pressure signal and convert the pressure signal into an electrical signal according to a certain rule, the pressure sensor 301e can be electrically connected to the controller 103 by wires, at this time, the bottom end of the T-shaped rod 301a keeps in contact with the carbon block of the spring carbon brush 203, during the continuous consumption of the spring carbon brush 203, the length of the carbon block will continuously shorten and move towards the commutator 104 through the spring of the carbon block;

[0050] When the carbon block is consumed to a certain extent, the bottom end of the T-shaped rod 301a is out of contact with the carbon block, and the extension spring 301d will press the disc 301c downward, so that the bottom end of the T-shaped rod 301a is inserted into the rectangular frame 202, at this time, the disc 301c is out of contact with the pressure sensor 301e, so that the pressure sensor 301e no longer senses the pressure, thereby sending a signal to the controller 103, so as to send a reminder signal through the reminding unit 400.

[0051] In addition, the triggering unit 300 further comprises a protection assembly 302, the protection assembly 302 comprises two protection pipes 302a connected to the outer wall of the servo motor 102, the top ends of the two T-shaped rods 301a are located in the two protection pipes 302a respectively, and the top ends of the two protection pipes 302a are threadedly sleeved with sealing covers 302b.

[0052] The protection pipe 302a is provided with a thread matched with the sealing cover 302b, the sealing cover 302b can be disassembled on the protection pipe 302a by rotating, and the T-shaped rod 301a can be pulled after the sealing cover 302b is removed, and the protection pipe 302a and the sealing cover 302b are used to protect the T-shaped rod 301a from being bumped.

[0053] It should be noted that the top of the two T-shaped rods 301a protrudes to the outside of the protection pipe 302a, and the top of the two T-shaped rods 301a is spaced from the top of the inner cavity of the sealing cover 302b.

[0054] The top of the T-shaped rod 301a protrudes to the top opening of the protection pipe 302a, so as to pull the T-shaped rod 301a upward, when the sealing cover 302b is rotated, the sealing cover 302b does not rub with the top end of the T-shaped rod 301a, so as to avoid twisting the T-shaped rod 301a and avoiding abrasion to the T-shaped rod 301a.

[0055] Embodiment 4

[0056] Referring toFigure 2 and Figure 3 This is the fourth embodiment of the present utility model. Unlike the previous embodiment, the reminder unit 400 includes a horizontal block 401 fixedly connected above the outer wall of the servo motor 102, and two indicator lights 402 are fixedly connected to the top of the horizontal block 401.

[0057] The top of the horizontal block 401 is a horizontal surface to highlight the indicator light 402. The indicator light 402 has a light-emitting and color-changing LED inside. The indicator light 402 is electrically connected to the controller 103 via wires. When the pressure sensor 301e is in contact with the disc 301c, the indicator light 402 lights up green. When the controller 103 receives a signal that the pressure sensor 301e has lost pressure from the disc 301c, the controller 103 controls the indicator light 402 to light up red. The color emitted by the indicator light 402 serves as a reminder to the user so that the spring carbon brush 203 can be replaced in time.

[0058] Among them, two indicator lights 402 are respectively close to two protective tubes 302a, and a buzzer 403 located between the two indicator lights 402 is fixedly connected to the top of the horizontal block 401.

[0059] The two indicator lights 402 correspond to the two pressure sensors 301e, and the two pressure sensors 301e correspond to the spring carbon brushes 203 below them. The working status of the corresponding spring carbon brushes 203 can be displayed intuitively and clearly through the indicator lights 402 at different positions, so as to replace the spring carbon brushes 203 at the corresponding positions. When the indicator light 402 is red, the controller 103 uses the built-in wire to control the internal speaker of the buzzer 403 to emit a sound, so as to further remind the user to replace the spring carbon brushes 203.

[0060] During use, first remove the two sealing caps 302b and the two cover plates 201, then pull the two T-shaped rods 301a upwards. Next, slide the two spring carbon brushes 203 into the two rectangular frames 202 respectively, and make them contact the commutator 104. Then, fix the two cover plates 201 to the servo motor 102 with bolts. Then, loosen the two T-shaped rods 301a, so that the bottom ends of the two T-shaped rods 301a are in contact with the spring carbon brushes 203 below them, and the two discs 301c continue to be in contact with the corresponding pressure sensors 301e. At this time, the controller 103 controls the indicator light 402 to light up green. Then, rotate and fix the two sealing caps 302b to their respective protective tubes 302a. As the spring carbon brushes 203 are continuously consumed, the length of the carbon block will continuously shorten and move towards the commutator 104 through its own spring.

[0061] When a certain spring carbon brush 203 is consumed to a certain extent, the bottom end of the T-shaped rod 301a is out of contact with the carbon block of the spring carbon brush 203, and the extension spring 301d will press the disc 301c downward, so that the bottom end of the T-shaped rod 301a is inserted into the rectangular frame 202. At this time, the disc 301c is out of contact with the pressure sensor 301e, so that the pressure sensor 301e no longer senses the pressure and sends a signal to the controller 103. The controller 103 controls the red indicator light 402 to turn on and the buzzer 403 to sound, so as to remind the user to replace the spring carbon brush 203. The position of the red indicator light 402 is used to replace the spring carbon brush 203 in the corresponding position.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application. They should be covered in the scope of the claims of the present application.

Claims

1. A graphite long carbon brush cooling fan having a reminding function, characterized by, The application relates to a fan frame (101) and a servo motor (102) fixed in the fan frame (101), a controller (103) arranged on the servo motor (102), a commutator (104) arranged in the casing of the servo motor (102), and a fan blade (105) fixedly connected to the output end of the servo motor (102). An installation unit (200) is arranged on the servo motor (102) and used for installing a carbon brush into the servo motor (102). A triggering unit (300) is arranged in the servo motor (102) and used for triggering when the carbon brush is excessively consumed. An reminding unit (400) is arranged on the servo motor (102) and used for prompting replacement of the carbon brush after the triggering unit (300) is triggered. The installation unit (200) comprises two cover plates (201) fixed on the outer wall of the servo motor (102) through bolts, two rectangular frames (202) penetrating through the servo motor (102) and fixedly connected to the inner wall of the servo motor (102), and two spring carbon brushes (203) slidingly arranged in the two rectangular frames (202).

2. The graphite long carbon brush cooling fan with a reminding function according to claim 1, characterized in that: The outer wall of the servo motor (102) is fixedly connected with two limiting frames (204) matched with the cover plates (201), and the two cover plates (201) slide in the corresponding limiting frames (204) respectively.

3. The graphite long carbon brush cooling fan with a reminding function according to claim 2, characterized in that: The triggering unit (300) comprises a carbon brush contact piece (301), the carbon brush contact piece (301) comprises two T-shaped rods (301a) slidingly penetrating into the servo motor (102), two support plates (301b) fixedly connected to the inner wall of the servo motor (102), the two T-shaped rods (301a) penetrating through the corresponding support plates (301b) and rectangular frames (202) in sequence and contacting the corresponding spring carbon brushes (203), a disc (301c) fixedly sleeved on the two T-shaped rods (301a), a telescopic spring (301d) fixedly sleeved on the T-shaped rod (301a) and arranged on the top of the two discs (301c), and a pressure sensor (301e) fixedly connected to the bottom of the two support plates (301b).

4. The graphite long carbon brush cooling fan with a reminding function according to claim 3, characterized in that: The triggering unit (300) further comprises a protection assembly (302), the protection assembly (302) comprises two protection pipes (302a) connected to the outer wall of the servo motor (102), the top ends of the two T-shaped rods (301a) are arranged in the two protection pipes (302a) respectively, and a sealing cover (302b) is threadedly sleeved on the top end of each protection pipe (302a).

5. The graphite long carbon brush cooling fan with a reminding function according to claim 4, characterized in that: The top of each T-shaped rod (301a) protrudes to the outside of the protection pipe (302a), and a gap is reserved between the top of each T-shaped rod (301a) and the top of the inner cavity of the sealing cover (302b).

6. The graphite long carbon brush cooling fan with a reminding function according to claim 5, characterized in that: ​ 7. The graphite long carbon brush cooling fan with a reminding function according to claim 5, characterized in that: The reminding unit (400) comprises a horizontal block (401) fixedly connected above the outer wall of the servo motor (102), and the top of the horizontal block (401) is fixedly connected with two indicator lamps (402).

8. The graphite long carbon brush cooling fan with a reminding function according to claim 7, characterized in that: The two indicator lamps (402) are respectively close to the two protective pipes (302a), and the top of the horizontal block (401) is fixedly connected with a buzzer (403) located between the two indicator lamps (402).

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