Automobile FOC brushless electronic fan controller

Abstract

The utility model provides an automobile FOC brushless electronic fan controller which comprises a shell, a cover plate is fixed to the side face of the shell, cooling fins are fixed to the surface of the shell, a main board is installed in the shell, a power source is fixed to the main board, a control line is fixed to the main board, a threading groove is formed in the cover plate, and the cooling fins are fixed to the surface of the shell. The control line penetrates through the threading groove, a connector is fixed to the end, away from the mainboard, of the control line, mounting blocks are fixed to the four corners of the shell, and a clamping structure is arranged at the position, located in the threading groove, of the side face of the cover plate. The clamping structure comprises a first clamping strip arranged on the side face of the cover plate in a sliding mode, a second clamping strip is fixed to the side face of the cover plate, and a connecting assembly is arranged between the first clamping strip and the second clamping strip. The problem that when the control line of the controller is subjected to external force, the control line and the main board are prone to loosening or falling off is solved.

Description

Technical Field

[0001] This utility model relates to the field of electronic fan controller technology, and more specifically, to an automotive FOC brushless electronic fan controller. Background Technology

[0002] The FOC brushless electronic fan controller is a motor drive device based on Field Directional Control (FOC) technology, specifically designed for brushless DC motors or permanent magnet synchronous motors in automotive cooling systems. Its core principle is to use a vector control algorithm to adjust the direction and magnitude of the stator current's magnetic field in real time, maintaining the optimal phase difference between the motor rotor and the stator magnetic field, thereby achieving high-efficiency, low-noise torque output.

[0003] The current control cable connection structure of the automotive FOC brushless electric fan controller has reliability issues. One end of the control cable is soldered to the controller's mainboard PCB terminal, and the other end connects to external devices via a connector. Under vehicle vibration or accidental pulling of the wiring harness, stress concentration can easily occur at the connection point between the control cable and the mainboard, leading to solder joint breakage or terminal loosening. This affects the controller's control function, causing signal transmission interruptions, fan malfunctions, and other faults. Repairing the controller requires complete disassembly and rewiring, which is time-consuming and inconvenient. Utility Model Content

[0004] The purpose of this invention is to address the problem that when the controller is subjected to force, stress concentration easily occurs at the connection between the control line and the motherboard, leading to solder joint breakage or terminal loosening, which affects the controller's control function.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0006] A brushless electronic fan controller for automotive FOC (Free-Fan Control) is proposed to improve the aforementioned problems.

[0007] The application is as follows:

[0008] A brushless electronic fan controller for automotive FOC includes a housing, a cover plate fixed to the side of the housing, heat dissipation fins fixed to the surface of the housing, a main board installed inside the housing, a power supply fixed to the main board, and control wires fixed to the main board. A wire-passing groove is formed on the cover plate, through which the control wires pass. A connector is fixed to the end of the control wires away from the main board. Mounting blocks are fixed at the four corners of the housing. A clamping structure is provided on the side of the cover plate at the position of the wire-passing groove. The clamping structure includes a clamping strip slidably disposed on the side of the cover plate, a slider fixed to the side of the clamping strip, a sliding groove adapted to the slider formed on the side of the cover plate, the slider slidably disposed within the sliding groove, a second clamping strip fixed to the side of the cover plate, and a connecting component between the first clamping strip and the second clamping strip.

[0009] As a preferred technical solution of this application, the connecting assembly includes a connecting rod fixed to one end of the clamping bar, a connecting block fixed to the other end of the clamping bar, a connecting groove provided on the connecting block, the end of the connecting rod extending into the connecting groove, and a connecting member provided inside the connecting groove.

[0010] As a preferred technical solution of this application, the connector includes a connecting column slidably disposed inside the connecting groove. The ends of the connecting rod and the connecting column are both inclined cut surfaces. A support ring is fixed on the connecting column. A connecting spring is slidably sleeved on the connecting column. The connecting spring is fixedly connected to the support block and the connecting box. A connecting hole is opened on the connecting rod. The connecting column slidably extends into the connecting groove.

[0011] As a preferred technical solution of this application, two symmetrically arranged limiting posts are installed inside the second clamping bar, and a movable groove is opened on the surface of the first clamping bar, and the limiting posts are inserted into the movable groove.

[0012] As a preferred technical solution of this application, the surface of the clamping bar two is provided with an installation groove, and a bidirectional threaded rod is rotatably connected inside the installation groove. One end of the bidirectional threaded rod extends out of the clamping bar two, and two symmetrically arranged moving blocks are threadedly connected to the bidirectional threaded rod. The moving blocks are fixedly connected to the limiting column, and the moving blocks are in contact with the inner wall of the installation groove.

[0013] As a preferred technical solution of this application, a limiting strip is fixed at one end of the clamping bar away from the connecting rod, and a snap-fit ​​groove adapted to the end of the bidirectional threaded rod is provided at the end of the limiting strip.

[0014] As a preferred technical solution of this application, both the first clamping strip and the second clamping strip are fixed with protective pads, which are flexible rubber pads.

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

[0016] In the scheme of this application:

[0017] By pressing clamping bar one, clamping bar one moves towards clamping bar two. At this time, the end of the connecting rod abuts against the end of the connecting post. The connecting post moves under force and squeezes the connecting spring. When the position of the connecting hole corresponds to the position of the connecting post, the connecting post is reset and enters the connecting hole under the action of the connecting spring. By clamping bar one and clamping bar two, the control line is clamped and restricted, which can reduce the loosening or falling off of the control line from the motherboard when it is pulled. The limiting post can restrict the side of the control line, improving the restriction effect of the control line. Attached Figure Description

[0018] Figure 1 This application provides an overall structural schematic diagram of an automotive FOC brushless electronic fan controller;

[0019] Figure 2 A partial cross-sectional view of an automotive FOC brushless electronic fan controller provided for this application;

[0020] Figure 3 This application provides a brushless electronic fan controller for automotive FOC (Free-Circuit Oven). Figure 2 A magnified structural diagram of A in the middle;

[0021] Figure 4 This application provides a brushless electronic fan controller for automotive FOC (Free-Circuit Oven). Figure 1 A magnified structural diagram of B in the diagram.

[0022] The image shows:

[0023] 1. Housing; 2. Cover plate; 3. Heat sink fins; 4. Main board; 5. Power supply; 6. Control line; 7. Connector; 8. Mounting block; 9. Clamping bar one; 10. Clamping bar two; 11. Slide groove; 12. Slider; 13. Connecting rod; 14. Connecting block; 15. Connecting groove; 16. Connecting post; 17. Support ring; 18. Connecting spring; 19. Connecting hole; 20. Limiting post; 21. Bidirectional threaded rod; 22. Moving block; 23. Limiting bar; 24. Protective pad; 25. Mounting groove. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0025] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely illustrates some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model. It should be noted that, unless otherwise specified, the embodiments, features, and technical solutions in the embodiments of this utility model can be combined with each other.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] like Figures 1-4As shown, this embodiment proposes an automotive FOC brushless electronic fan controller, including a housing. A cover plate 2 is fixed to the side of the housing 1. Heat dissipation fins 3 are fixed to the surface of the housing 1. A main board 4 is installed inside the housing 1. A power supply 5 is fixed to the main board 4. A control line 6 is fixed to the main board 4. A wire-passing groove is provided on the cover plate 2. The control line 6 passes through the wire-passing groove. A connector 7 is fixed to the end of the control line 6 away from the main board 4. Mounting blocks 8 are fixed at the four corners of the housing 1. A clamping structure is provided on the side of the cover plate 2 at the position of the wire-passing groove. The clamping structure includes a clamping strip 9 slidably disposed on the side of the cover plate 2. A slider 12 is fixed to the side of the clamping strip 9. A sliding groove 11 adapted to the slider 12 is provided on the side of the cover plate 2. The slider 12 is slidably disposed inside the sliding groove 11. A second clamping strip 10 is fixed to the side of the cover plate 2. A connecting component is provided between the first clamping strip 9 and the second clamping strip 10.

[0028] The connecting assembly includes a connecting rod 13 fixed to the end of the clamping bar 9, a connecting block 14 fixed to the end of the clamping bar 10, a connecting groove 15 provided on the connecting block 14, the end of the connecting rod 13 extending into the connecting groove 15, and a connecting member provided inside the connecting groove 15.

[0029] The connector includes a connecting post 16 slidably disposed inside the connecting groove 15. The ends of the connecting rod 13 and the connecting post 16 are both inclined. A support ring 17 is fixed on the connecting post 16. A connecting spring 18 is slidably sleeved on the connecting post 16. The connecting spring 18 is fixedly connected to the support block and the connecting box. A connecting hole 19 is opened on the connecting rod 13. The connecting post 16 slides into the connecting groove 15.

[0030] By pressing the clamping bar 9, the clamping bar 9 moves toward the clamping bar 10. At this time, the end of the connecting rod 13 abuts against the end of the connecting post 16. As the pressing continues, the connecting post 16 is moved by force and squeezes the connecting spring 18. When the position of the connecting hole 19 corresponds to the position of the connecting post 16, the connecting post 16 is no longer under force. Under the action of the connecting spring 18, the connecting post 16 is reset and enters the connecting hole 19. The control line 6 is clamped and restricted by the clamping bar 9 and the clamping bar 10.

[0031] The clamping bar 2 10 has two symmetrically arranged limiting posts 20 installed inside. The surface of the clamping bar 1 9 has a movable groove, and the limiting posts 20 are inserted into the movable groove.

[0032] The clamping bar 20 has an installation groove 25 on its surface. A bidirectional threaded rod 21 is rotatably connected inside the installation groove 25. One end of the bidirectional threaded rod 21 extends out of the clamping bar 20. Two symmetrically arranged moving blocks 22 are threadedly connected to the bidirectional threaded rod 21. The moving blocks 22 are fixedly connected to the limiting post 20 and fit against the inner wall of the installation groove 25.

[0033] The clamping bar 9 is fixed with a limiting bar 23 at the end away from the connecting rod 13. The end of the limiting bar 23 is provided with a snap-fit ​​groove that matches the end of the bidirectional threaded rod 21.

[0034] Depending on the number of control lines 6, by turning the bidirectional threaded rod 21 in the forward or reverse direction, the two moving blocks 22 are forced to move closer or further apart, thereby adjusting the position of the limiting post 20. By adjusting the position of the limiting post 20, it can limit different numbers of control lines 6, thus further improving the clamping effect of the limiting post 20 on the control lines 6.

[0035] Both clamping strip 9 and clamping strip 10 have protective pads 24 fixed to their surfaces, and the protective pads 24 are flexible rubber pads.

[0036] The protective pad 24 can reduce the wear caused to the control line 6 by the clamping strip 9 and the clamping strip 10, thus protecting the control line 6.

[0037] When using this application: the control line 6 is passed through the wire slot on the cover plate 2, and then the clamping strip 19 is pressed to move the clamping strip 19 toward the clamping strip 20. At this time, the end of the connecting rod 13 abuts against the end of the connecting post 16. As the pressing continues, the connecting post 16 is forced to move and squeeze the connecting spring 18. When the position of the connecting hole 19 corresponds to the position of the connecting post 16, the connecting post 16 is no longer under force. Under the action of the connecting spring 18, the connecting post 16 is reset and enters the connecting hole 19. The clamping strip 19 and the clamping strip 20 clamp and restrict the control line 6, which can reduce the loosening or falling off of the control line 6 with the main board 4 when it is pulled.

[0038] By turning the bidirectional threaded rod 21, the two moving blocks 22 are subjected to force and restricted by the mounting groove 25, causing the two limiting posts 20 to move toward the control line 6, thereby restricting the control line 6 and further improving the clamping effect of the limiting posts 20 on the control line 6.

[0039] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A car FOC brushless electronic fan controller comprising a housing (1), characterized in that, The shell (1) side is fixed with cover plate (2), the shell (1) surface is fixed with the fin (3), the shell (1) inside is installed mainboard (4), the mainboard (4) is fixed with power (5), the mainboard (4) is fixed with control line (6), the cover plate (2) is set up and is drawn in the slot, the control line (6) passes through the slot, the control line (6) is fixed with the connector (7) in the end away from mainboard (4), the shell (1) four corners fixed mounting block (8), the cover plate (2) side is located in the position of the slot and is provided with the clamping structure;The clamping structure includes the clamping strip one (9) slidingly arranged on the side of the cover plate (2), the clamping strip one (9) side is fixed with the sliding block (12), the cover plate (2) side is set up and is drawn in the sliding groove (11) with the sliding block (12) is matched, the sliding block (12) is slidingly arranged in the sliding groove (11) inside, the cover plate (2) side is fixed with the clamping strip two (10), the clamping strip one (9) and the clamping strip two (10) between setting up and are connected assembly.

2. The automotive FOC brushless electronic fan controller of claim 1, wherein, The connecting assembly includes the connecting rod (13) fixed in the end of the clamping strip one (9), the clamping strip two (10) end is fixed with the connecting block (14), the connecting block (14) is set up and is drawn in the connecting slot (15), the connecting rod (13) end stretches into the connecting slot (15) inside, the connecting slot (15) inside is provided with the connecting piece.

3. The automotive FOC brushless electronic fan controller of claim 2, wherein, The connecting piece includes the connecting column (16) slidingly arranged in the connecting slot (15) inside, the connecting rod (13) and the connecting column (16) end are all inclined section, the connecting column (16) is fixed with the support ring (17), the connecting column (16) is slidingly sleeved with the connecting spring (18), the connecting spring (18) and the support block, the connecting box are fixedly connected, the connecting rod (13) is set up and is drawn in the connecting hole (19), the connecting column (16) slidingly stretches into the connecting slot (15) inside.

4. The automotive FOC brushless electronic fan controller of claim 1, wherein, The clamping strip two (10) inside is installed two symmetrical limit columns (20), the clamping strip one (9) surface is set up and is drawn in the movable slot, the limit column (20) is inserted into the movable slot inside.

5. The automotive FOC brushless electronic fan controller of claim 4, wherein, The clamping strip two (10) surface is set up and is drawn in the mounting slot (25), the mounting slot (25) inside is rotatably connected with the two-way threaded rod (21), the two-way threaded rod (21) one end stretches out the clamping strip two (10), the two-way threaded rod (21) is screwedly connected with two symmetrical mobile blocks (22), the mobile block (22) and the limit column (20) are fixedly connected, the mobile block (22) and the mounting slot (25) inner wall are consistent.

6. The automotive FOC brushless electronic fan controller of claim 5, wherein, The clamping strip one (9) is fixed with the limit strip (23) in the end away from the connecting rod (13), the limit strip (23) end is set up and is drawn in the clamping slot with the two-way threaded rod (21) end is matched.

7. The automotive FOC brushless electronic fan controller of claim 1, wherein, The clamping strip one (9) and the clamping strip two (10) surface are all fixed with the protective pad (24), the protective pad (24) is flexible rubber pad.

Images