Motor controller with overload protection function

Abstract

The utility model discloses a motor controller with an overload protection function, and relates to the technical field of motor controller equipment, the motor controller comprises a motor controller body, a heat dissipation mechanism and a protection mechanism, the upper side of the front end face of the motor controller body is fixedly connected with an air inlet box, and the bottom of the front end face of the motor controller body is fixedly connected with a wind chamber; heat dissipation mechanisms are arranged in the air inlet box and the air extraction box, a protection mechanism is arranged at the upper end of the air inlet box, a filter screen and an activated carbon adsorption layer can effectively filter impurities, dust and moisture in external air, the impurities are prevented from entering the motor controller body, and short circuit or corrosion of a circuit caused by dust accumulation or moisture invasion is avoided. And a second transmission rod drives a cleaning rod to clean impurity accumulation on the outer side wall of the filter screen, it is ensured that the filter screen is kept clean, and the situation that the filter screen is blocked by excessive dust is avoided.

Description

Technical Field

[0001] This utility model relates to the field of motor controller equipment technology, specifically a motor controller with overload protection function. Background Technology

[0002] A motor controller is an integrated circuit that actively controls a motor to operate according to a set direction, speed, angle, and response time.

[0003] During normal operation, the power and current of a motor controller are controlled. However, under excessive load, the motor controller can generate excessive heat, potentially leading to overheating. Overheating can cause aging of the motor's insulation materials, even burning out the windings and causing a fire. However, existing motor controllers lack heat dissipation capabilities, which can result in overheating and overload.

[0004] Therefore, those skilled in the art have provided a motor controller with overload protection function to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to provide a motor controller with overload protection function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A motor controller with overload protection function includes a motor controller body, a heat dissipation mechanism, and a protective mechanism. An air inlet box is fixedly connected to the upper side of the front end face of the motor controller body, and an exhaust box is fixedly connected to the bottom of the front end face of the motor controller body. Both the air inlet box and the exhaust box are equipped with heat dissipation mechanisms, and a protective mechanism is provided at the upper end of the air inlet box.

[0008] As a further embodiment of this utility model: a micro drive motor is fixedly connected to the upper end face of the air inlet box. The power output end of the micro drive motor passes through the air inlet box and is fixedly connected to a first transmission rod. A first bevel gear is fixedly connected to the end of the first transmission rod. A second transmission rod is rotatably connected to both the air inlet box and the exhaust box. A second bevel gear is fixedly connected to the outer wall of each second transmission rod. The second bevel gear is rotatably connected to the first bevel gear on the upper side. A third transmission rod is rotatably connected between the air inlet box and the exhaust box. The third transmission rod passes through both the air inlet box and the exhaust box and is fixedly connected to both ends of each third bevel gear. The third bevel gear is rotatably connected to the adjacent second bevel gear.

[0009] As a further embodiment of this utility model: both the air inlet box and the air outlet box have air inlet and outlet slots at the end near the motor controller body, an air intake fan is fixedly connected to the upper end of the second transmission rod near the air inlet box, and an air exhaust fan is fixedly connected to the upper end of the second transmission rod near the air outlet box.

[0010] As a further embodiment of this utility model: a filter screen is fixedly connected to the front end of the air inlet box; multiple sets of cleaning rods are fixedly connected to the outer side wall of the second transmission rod inside the air inlet box near the filter screen; the cleaning rods abut against the filter screen; two sets of mounting frames are fixedly connected inside the air inlet box; activated carbon adsorption layers are slidably connected inside the mounting frames; pull blocks are fixedly connected to the upper end of the activated carbon adsorption layers; the pull blocks and the activated carbon adsorption layers are both connected through the air inlet box.

[0011] As a further embodiment of this utility model: both ends of the upper surface of the air inlet box are fixedly connected to a fixing block, and a first return spring is fixedly connected inside each fixing block. A pull rod is fixedly connected to the other end of each first return spring. Each pull rod passes through the upper end of the pull block and has a through hole. A second return spring is fixedly connected inside each pull rod. A locking rod is fixedly connected to the bottom end of each second return spring. The locking rod is slidably connected to the pull rod and abuts against the outer wall of the pull block.

[0012] As a further embodiment of this utility model: the first bevel gear is perpendicular to the adjacent second bevel gear and meshes with the adjacent second bevel gear; the second bevel gears are all perpendicular to the third bevel gears and mesh with the third bevel gears.

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

[0014] Equipped with a heat dissipation mechanism, the intake fan blows cool air into the motor controller body, while the exhaust fan expels the generated hot air, forming a continuous airflow circulation. This effectively reduces the internal temperature of the motor controller, preventing overheating-induced circuit damage or performance degradation leading to overload and ensuring stable operation of the motor controller. A single micro-drive motor drives two sets of fans, which operate in both forward and reverse directions. A protective mechanism, including a filter and activated carbon adsorption layer, effectively filters impurities, dust, and moisture from the outside air, preventing impurities from entering the motor controller body and avoiding short circuits or corrosion caused by dust accumulation or moisture intrusion, thus protecting the lifespan of internal components. The second transmission rod drives a cleaning rod to clean the accumulated impurities on the outer wall of the filter, ensuring the filter remains clean and preventing excessive dust blockage. The replacement and maintenance of the activated carbon adsorption layer is simplified by a pull block and lever. Maintenance personnel only need to pull the pull block to remove the activated carbon layer for replacement, and then use a return spring to fix the position of the activated carbon layer. The entire process is convenient and quick, reducing operation time and improving maintenance efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a motor controller with overload protection function.

[0016] Figure 2 This is a side view sectional diagram of the air inlet box in a motor controller with overload protection function.

[0017] Figure 3 This is a side view sectional diagram of the air inlet box in a motor controller with overload protection function.

[0018] Figure 4 This is a side view sectional view of the exhaust box in a motor controller with overload protection.

[0019] Figure 5 This is an enlarged structural diagram of point A in a motor controller with overload protection function.

[0020] Figure 6 This is a side view sectional diagram of the tie rod in a motor controller with overload protection function.

[0021] In the diagram: 1. Motor controller body; 2. Air inlet box; 3. Air outlet box; 4. Miniature drive motor; 5. First transmission rod; 6. First bevel gear; 7. Second transmission rod; 8. Inlet fan; 9. Exhaust fan; 10. Second bevel gear; 11. Third bevel gear; 12. Third transmission rod; 13. Inlet / outlet slot; 14. Mounting frame; 15. Activated carbon adsorption layer; 16. Filter screen; 17. Cleaning rod; 18. Pull block; 19. Fixing block; 20. First return spring; 21. Pull rod; 22. Second return spring; 23. Locking rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Reference Figure 1-6This embodiment provides a motor controller with overload protection function, including a motor controller body 1, an air inlet box 2, an air outlet box 3, a micro drive motor 4, a first transmission rod 5, a first bevel gear 6, a second transmission rod 7, an air intake fan 8, an air exhaust fan 9, a second bevel gear 10, a third bevel gear 11, a third transmission rod 12, an air inlet / outlet slot 13, a mounting frame 14, an activated carbon adsorption layer 15, a filter screen 16, a cleaning rod 17, a pull block 18, a fixing block 19, a first return spring 20, a pull rod 21, a second return spring 22, and a locking rod 23; the air inlet box 2 is fixedly connected to the upper side of the front end face of the motor controller body 1, and the air outlet box 3 is fixedly connected to the bottom of the front end face of the motor controller body 1. Both the air inlet box 2 and the air outlet box 3 are provided with heat dissipation mechanisms, and the upper end of the air inlet box 2 is provided with a protective mechanism.

[0025] Example 2

[0026] Reference Figure 1 , 2 3 and 4, this embodiment is based on the previous embodiment, but differs in that a micro drive motor 4 is fixedly connected to the upper end face of the air inlet box 2. The power output end of the micro drive motor 4 passes through the air inlet box 2 and is fixedly connected to a first transmission rod 5. A first bevel gear 6 is fixedly connected to the end of the first transmission rod 5. A second transmission rod 7 is rotatably connected inside both the air inlet box 2 and the air outlet box 3. A second bevel gear 10 is fixedly connected to the outer wall of the second transmission rod 7. The second bevel gear 10 is rotatably connected to the upper first bevel gear 6. A third transmission rod 12 is rotatably connected between the air inlet box 2 and the air outlet box 3. The third transmission rod 12 passes through both the air inlet box 2 and the air outlet box 3. Furthermore, both ends of the tail are fixedly connected to a third bevel gear 11, and the third bevel gear 11 is rotatably connected to the adjacent second bevel gear 10. The air inlet box 2 and the air outlet box 3 are both provided with air inlet and outlet slots 13 at the end near the motor controller body 1. An air inlet fan 8 is fixedly connected to the upper end of the second transmission rod 7 near the air inlet box 2, and an air outlet fan 9 is fixedly connected to the upper end of the second transmission rod 7 near the air outlet box 3. The first bevel gear 6 is perpendicular to the adjacent second bevel gear 10 and meshes with the adjacent second bevel gear 10. The second bevel gear 10 is perpendicular to the third bevel gear 11 and meshes with the third bevel gear 11.

[0027] The micro drive motor 4 is started, which drives the first transmission rod 5 to rotate. The first transmission rod 5 drives the first bevel gear 6 to rotate. The first bevel gear 6 first drives the adjacent second bevel gear 10 to rotate. The second bevel gear 10 then drives the adjacent third bevel gear 11 to rotate and connect. This drives the third transmission rod 12 and the second transmission rod 7 to rotate synchronously. Due to the effect of the bevel gears, the second transmission rod 7 in the air inlet box 2 and the air outlet box 3 rotates in opposite directions, thereby driving the air intake fan 8 and the air exhaust fan 9 to work. The air intake fan 8 blows cold air into the motor controller body 1, and the air exhaust fan 9 extracts the hot air from the motor controller body 1 to the outside.

[0028] Example 3

[0029] Reference Figure 1 , 3 5, 6, This embodiment is based on the previous embodiment, but differs in that a filter screen 16 is fixedly connected to the front end of the air inlet box 2. Multiple sets of cleaning rods 17 are fixedly connected to the outer wall of the second transmission rod 7 inside the air inlet box 2 near the filter screen 16. All cleaning rods 17 abut against the filter screen 16. Two sets of mounting frames 14 are fixedly connected inside the air inlet box 2. Activated carbon adsorption layers 15 are slidably connected within each mounting frame 14. Pull blocks 18 are fixedly connected to the upper end of each activated carbon adsorption layer 15. Both the 8 and the activated carbon adsorption layer 15 are connected through the air inlet box 2. The upper end face of the air inlet box 2 is fixedly connected to the left and right ends of the fixed blocks 19, and the first return spring 20 is fixedly connected inside each of the fixed blocks 19. The other end of the first return spring 20 is fixedly connected to the pull rod 21. The pull rod 21 passes through the upper end of the pull block 18 and has a through hole. The pull rod 21 is fixedly connected to the second return spring 22. The bottom end of the second return spring 22 is fixedly connected to the locking rod 23. The locking rod 23 is slidably connected to the pull rod 21 and abuts against the outer wall of the pull block 18.

[0030] The intake fan 8 blows cold air into the motor controller body 1. It needs to draw in external cold air to enter the motor controller body 1. The cold air first passes through the filter screen 16 to filter impurities to prevent impurities from entering the motor controller body 1. Then, it passes through the activated carbon adsorption layer 15 to adsorb the moisture and tiny impurities in the cold air. Finally, it enters the motor controller body 1 through the air inlet and outlet slots 13.

[0031] The second transmission rod 7 drives the cleaning rod 17 on the outer wall to rotate, cleaning the impurities screened on the outer wall of the filter screen 16. Pulling the pull block 18 pulls the activated carbon adsorption layer out of the mounting frame 14 for replacement or maintenance. After resetting, pulling the pull rod 21 causes it to retract via the first return spring 20 until it enters the through hole of the pull block 18. Then, the second return spring 22 resets the locking rod 23, thereby fixing the activated carbon adsorption layer 15.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A motor controller with overload protection function, comprising a motor controller body (1), a heat dissipation mechanism, and a protection mechanism, characterized in that, An air inlet box (2) is fixedly connected to the upper side of the front end face of the motor controller body (1), and an exhaust box (3) is fixedly connected to the bottom of the front end face of the motor controller body (1). Both the air inlet box (2) and the exhaust box (3) are equipped with heat dissipation mechanisms, and a protective mechanism is provided at the upper end of the air inlet box (2).

2. A motor controller with overload protection function according to claim 1, characterized in that, The heat dissipation mechanism includes an intake fan (8) and an exhaust fan (9). A micro drive motor (4) is fixedly connected to the upper end of the air intake box (2). The power output end of the micro drive motor (4) passes through the air intake box (2) and is fixedly connected to a first transmission rod (5). A first bevel gear (6) is fixedly connected to the end of the first transmission rod (5).

3. A motor controller with overload protection function according to claim 2, characterized in that, The air inlet box (2) and the air outlet box (3) are rotatably connected to a second transmission rod (7). The outer wall of the second transmission rod (7) is fixedly connected to a second bevel gear (10). The second bevel gear (10) is rotatably connected to the first bevel gear (6) on the upper side. The air inlet box (2) and the air outlet box (3) are rotatably connected to a third transmission rod (12). The third transmission rod (12) passes through the air inlet box (2) and the air outlet box (3) and is fixedly connected to a third bevel gear (11) at both ends. The third bevel gear (11) is rotatably connected to the adjacent second bevel gear (10).

4. A motor controller with overload protection function according to claim 3, characterized in that, Both the air inlet box (2) and the air outlet box (3) have air inlet and outlet slots (13) at the end near the motor controller body (1). An air inlet fan (8) is fixedly connected to the upper end of the second transmission rod (7) near the air inlet box (2), and an air outlet fan (9) is fixedly connected to the upper end of the second transmission rod (7) near the air outlet box (3).

5. A motor controller with overload protection function according to claim 1, characterized in that, The protective mechanism includes a filter screen (16) and an activated carbon adsorption layer (15). The front end of the air inlet box (2) is fixedly connected to the filter screen (16). The outer side wall of the second transmission rod (7) inside the air inlet box (2) near the filter screen (16) is fixedly connected to multiple sets of cleaning rods (17). The cleaning rods (17) all abut against the filter screen (16).

6. A motor controller with overload protection function according to claim 5, characterized in that, The air inlet box (2) is fixedly connected to two sets of mounting frames (14). Activated carbon adsorption layers (15) are slidably connected in the mounting frames (14). Pull blocks (18) are fixedly connected to the upper end of the activated carbon adsorption layers (15). Pull blocks (18) and activated carbon adsorption layers (15) are both connected through the air inlet box (2).

7. A motor controller with overload protection function according to claim 6, characterized in that, The upper end of the air inlet box (2) is fixedly connected to both the left and right ends of the fixed blocks (19), and a first return spring (20) is fixedly connected inside each of the blocks. A pull rod (21) is fixedly connected to the other end of each of the first return springs (20). Each pull rod (21) passes through the upper end of the pull block (18) and has a through hole. A second return spring (22) is fixedly connected inside each of the pull rods (21). A locking rod (23) is fixedly connected to the bottom end of each of the second return springs (22). The locking rod (23) is slidably connected to the pull rod (21) and abuts against the outer wall of the pull block (18).

8. A motor controller with overload protection function according to claim 3, characterized in that, The first bevel gear (6) is perpendicular to the adjacent second bevel gear (10), and the first bevel gear (6) meshes with the adjacent second bevel gear (10). The second bevel gear (10) is perpendicular to the third bevel gear (11), and the second bevel gear (10) meshes with the third bevel gear (11).

Images