Motor protection module based on double CAN bus

Abstract

The utility model relates to motor protection module technical field especially based on double CAN bus's motor protection module, including module body, one side of module body is provided with interface assembly, the lower extreme fixed mounting of module body has the bottom plate, the upper end of bottom plate is located one side through support fixed mounting of interface assembly has the base plate, the upper end along both sides of base plate is fixedly installed through support and has top board, the central position of top board is fixedly installed with threaded bushings and penetrates, the inside thread of threaded bushings is provided with threaded rod and penetrates, the upper end of threaded rod is assembled and is provided with the knob, the lower extreme of threaded rod is provided with bearing. This scheme drives threaded rod through rotating knob, drives the line seat along the stable movement of limiting rod direction, makes the cable of dispersion in the wiring end area concentrate and fix, and this kind of mechanical line binding mode effectively reduces the damage risk of cable because of excessive bending, pulling and leads to, prolongs the service life of line.

Description

Technical Field

[0001] This utility model relates to the technical field of motor protection modules, and in particular to a motor protection module based on a dual CAN bus. Background Technology

[0002] With the development of industrial automation and intelligence, motor protection modules are playing an increasingly important role in various application scenarios. Motor protection modules are mainly used to monitor the operating status of motors, providing overload protection, short-circuit protection, overheat protection, and other functions to ensure the safe and stable operation of motors.

[0003] Dual CAN bus technology is a redundant communication technology that uses two independent CAN buses to achieve data transmission. According to the authorization announcement number "CN206696697U", a CAN bus-based automotive instrument hardware system is disclosed, relating to the field of automotive instrument technology. It includes a main control module, a signal acquisition module connected to the main control module, an instrument lighting and alarm control module, a CAN transceiver module, a motor drive module, and an LCD display module. The main control module mainly consists of a digital signal controller (dsPIC30F6012A) and its peripheral circuits. The CAN transceiver module has two sets, one for internal system communication and the other for communication with an external main control computer. The CAN transceiver module uses an integrated chip TLE6250G, with pins 6 and 7 connected to the CAN bus, and pins 1 and 4 connected to the main control module. A CAN bus protector (NUP2105LT3) is connected between pins 6 and 7 of the integrated chip TLE6250G. The dual CAN transceiver module facilitates the main control module's differentiated processing of CAN data, improving communication efficiency.

[0004] Currently, the motor protection module has multiple line interfaces and connects to multiple sets of lines. If the lines are not bundled together at the connection points, they can easily be bent and damaged. In addition, the protection module is integrated into the equipment. If the equipment is working continuously, it will generate a lot of heat. If the protection module does not have an auxiliary heat dissipation structure, it will be affected by the surrounding heat and its temperature will remain too high. This can easily cause the internal components to age. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a motor protection module based on a dual CAN bus.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a motor protection module based on dual CAN bus, comprising a module body, an interface assembly provided on one side of the module body, a base plate fixedly installed at the lower end of the module body, a base plate fixedly installed on the upper end of the base plate on one side of the interface assembly via a bracket, and a top plate fixedly installed on both sides of the upper end of the base plate via brackets.

[0007] A threaded sleeve is fixed through the center of the top plate. A threaded rod is provided through the internal thread of the threaded sleeve. A knob is installed at the upper end of the threaded rod. A bearing is installed at the lower end of the threaded rod. The inner ring wall of the bearing is interference-fitted with the end of the threaded rod. A wire harness seat is installed at the lower end of the bearing.

[0008] Limiting sleeves are provided through both sides of the top plate, and limiting rods corresponding to the positions of the limiting sleeves are fixedly installed on both sides of the upper end of the cable harness. The surface of the limiting rod is slidably sleeved with the inside of the limiting sleeve.

[0009] Preferably, the lower end of the housing of the module body has symmetrically distributed pads for horizontal placement, and the upper end of the housing of the module body is equipped with fins for heat dissipation and heat conduction.

[0010] Preferably, the module body has edge protrusions on both sides at the end away from the interface assembly, and each edge protrusion has a mounting hole.

[0011] Preferably, the raised edge surface is symmetrically fitted with mounting brackets along its vertical position. The mounting brackets are right-angle bent structures and have mounting holes that penetrate their interior.

[0012] Preferably, rod seats are fixed on both sides of the upper end of the module body, and connecting rods are inserted inside the rod seats. The connecting rods have an L-shaped structure.

[0013] Preferably, the same frame is fixedly installed between the two connecting rods distributed on both sides, and a motor is fixedly installed on the inner side of the frame by a bracket. The motor has a drive shaft inside, and several blades are fixedly distributed on the surface of the shaft.

[0014] Preferably, a positioning sleeve is fixedly installed on one side of the rod seat by a bracket, a positioning pin is slidably sleeved inside the positioning sleeve, and a spring is wound around the surface of the positioning pin. The two ends of the spring are fixedly installed to the end face of the positioning sleeve and the surface of the positioning pin, respectively.

[0015] Preferably, a positioning seat is mounted on the surface of the connecting rod, and the end of the positioning pin away from the spring is slidably inserted into the interior of the positioning seat.

[0016] The design scheme proposed in this utility model has the following beneficial effects in application:

[0017] 1. This solution uses a rotating knob to drive the threaded rod, which in turn moves the cable harness smoothly along the direction of the limiting rod, allowing the scattered cables to be concentrated and fixed in the terminal area. This mechanical cable harnessing method effectively reduces the risk of damage to the cables caused by excessive bending and pulling, and extends the service life of the line.

[0018] 2. The housing is made of aluminum alloy and equipped with heat dissipation fins, which effectively improves the thermal conductivity and ensures the thermal stability of the module during long-term operation. The top is equipped with a motor-driven fan unit, which can actively deliver air to the fin area, enhance airflow exchange, and further improve heat dissipation efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a top view of the overall structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the overall bottom structure of this utility model from below;

[0022] Figure 4 This is a schematic diagram of the substrate and wire harness structure of this utility model;

[0023] Figure 5 For the present utility model Figure 1 Enlarged diagram of point A.

[0024] In the diagram: 1. Module body; 11. Interface assembly; 12. Base plate; 13. Base plate; 14. Top plate; 15. Threaded sleeve; 16. Threaded rod; 17. Knob; 18. Bearing; 19. Cable harness holder; 110. Pad; 111. Fin; 1001. Limiting sleeve; 1002. Limiting rod; 2. Edge protrusion; 21. Mounting hole one; 22. Mounting bracket; 23. Mounting hole two; 3. Rod seat; 31. Connecting rod; 32. Frame; 33. Motor; 34. Blade; 3001. Positioning sleeve; 3002. Positioning pin; 3003. Spring; 3004. Positioning seat. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Reference Figures 1-5A motor protection module based on dual CAN bus includes a module body 1. An interface assembly 11 is provided on one side of the module body 1. A base plate 12 is fixedly installed at the lower end of the module body 1. A base plate 13 is fixedly installed on the upper end of the base plate 12 on one side of the interface assembly 11 via a bracket. A top plate 14 is fixedly installed on both sides of the upper end of the base plate 13 via brackets. The interface assembly 11 can connect multiple sets of lines, improving the reliability and fault tolerance of the equipment operation. Even if one bus fails, the other bus can still ensure normal communication. The dual CAN bus can also share the communication load, improve data transmission efficiency, and reduce communication delay. When multiple lines are connected in the interface assembly 11, the lines are uniformly carried and positioned through the base plate 13.

[0028] A threaded sleeve 15 is fixed through the center of the top plate 14. A threaded rod 16 is threaded through the internal thread of the threaded sleeve 15. A knob 17 is mounted on the upper end of the threaded rod 16. A bearing 18 is mounted on the lower end of the threaded rod 16. The inner ring wall of the bearing 18 is interference-fitted with the end of the threaded rod 16. A wire harness seat 19 is mounted on the lower end of the bearing 18. When multiple lines need to be bundled together by the wire harness seat 19 in conjunction with the substrate 13, the threaded rod 16 is rotated by the knob 17, so that the threaded rod 16 moves threadedly relative to the threaded sleeve 15. This pushes the wire harness seat 19 to contact the substrate 13 and bundles the scattered lines in the terminal area, avoiding the line dispersion and excessive bending of the terminal. The bearing 18 can ensure the rotation stability of the threaded rod 16 when the wire harness seat 19 moves.

[0029] Limiting sleeves 1001 are provided through both sides of the top plate 14. Limiting rods 1002 corresponding to the positions of the limiting sleeves 1001 are fixedly installed on both sides of the upper end of the cable harness 19. The surface of the limiting rod 1002 is slidably sleeved with the inside of the limiting sleeve 1001. By sliding the limiting rod 1002 inside the limiting sleeve 1001, the cable harness 19 can move stably up and down.

[0030] Among them, the lower end of the shell of the module body 1 is symmetrically distributed with pads 110 for horizontal placement, and the upper end of the shell of the module body 1 is equipped with fins 111 for heat dissipation and heat conduction. The pads 110 can play a role in raising and insulating when the module body 1 is placed. The pads 110 are made of rubber material, and the fins 111 and the shell of the module body 1 are both made of aluminum alloy material, which can conduct heat well.

[0031] The module body 1 has edge protrusions 2 on both sides at the end away from the interface assembly 11. The edge protrusions 2 have mounting holes 21. When the module body 1 is installed horizontally with the equipment, it can be fixed by screws passing through the mounting holes 21.

[0032] Among them, mounting brackets 22 are symmetrically installed on the surface of the edge protrusion 2 along the vertical position. The mounting brackets 22 are right-angle bent structures. The mounting brackets 22 have mounting holes 23 that penetrate through them. When the module body 1 is installed vertically with the equipment, the mounting holes 23 can be fixed by screws passing through the mounting holes 23.

[0033] The upper two sides of the module body 1 are fixed with rod seats 3. A connecting rod 31 is inserted into the rod seat 3. The connecting rod 31 has an L-shaped structure. After the connecting rod 31 is positioned with the rod seat 3, it can be placed on top of the module body 1 along with the frame 32.

[0034] Among them, the same frame 32 is fixedly installed between the two connecting rods 31 distributed on both sides. The motor 33 is fixedly installed on the inner side of the frame 32 by a bracket. The motor 33 has a shaft for driving inside, and several blades 34 are fixedly distributed on the surface of the shaft. After the power is turned on, the motor 33 can make the shaft rotate and make the blades 34 rotate synchronously, producing a blowing effect, which can continuously deliver airflow to the position of the fin 111, thereby improving the airflow of the fin 111 and thus improving the heat dissipation effect of the module body 1.

[0035] The positioning sleeve 3001 is fixedly installed on one side of the rod base 3 by a bracket. The positioning pin 3002 is slidably sleeved inside the positioning sleeve 3001. A spring 3003 is wound around the surface of the positioning pin 3002. The two ends of the spring 3003 are fixedly installed to the end face of the positioning sleeve 3001 and the surface of the positioning pin 3002, respectively. The spring 3003 can ensure the stable extension and resetting of the positioning pin 3002. The positioning pin 3002 has a hand-pulled structure, which is simple and quick to operate.

[0036] The connecting rod 31 is fitted with a positioning seat 3004. The end of the positioning pin 3002 away from the spring 3003 is slidably inserted into the interior of the positioning seat 3004. When the frame 32 is not used during disassembly and space is saved, the positioning pin 3002 is pulled, so that the spring 3003 can be stretched, thereby allowing the positioning pin 3002 to separate from the positioning seat 3004. Thus, the connecting rod 31 can be disassembled from the rod seat 3.

[0037] In practice

[0038] This solution enables the access of multiple lines through interface assembly 11. The dual CAN bus structure significantly improves the reliability and fault tolerance of communication: when one bus fails, the other bus can immediately take over the communication task, ensuring uninterrupted data exchange between the module and external devices, such as controllers or sensors. Interface assembly 11 guides multiple lines to the substrate 13 area, and the substrate 13 uniformly carries and initially positions the lines, avoiding signal interference or physical damage caused by line dispersion. At the same time, the dual buses share the communication load, improve data transmission efficiency, and reduce system latency, making it suitable for industrial environments with high real-time requirements.

[0039] The wire harnessing function is achieved through the coordinated action of the threaded sleeve 15, threaded rod 16, knob 17, bearing 18, and harness seat 19. When it is necessary to centrally fix the lines connected to the interface assembly 11, the user rotates the knob 17 to drive the threaded rod 16 to move downward within the threaded sleeve 15, pushing the bearing 18 and harness seat 19 closer to the base plate 13. After the harness seat 19 contacts the base plate 13, it forms a clamping space, pressing and fixing the dispersed lines to prevent the terminals from being damaged due to excessive bending. The bearing 18 acts as a rotation buffer component, ensuring that the threaded rod 16 does not drive the harness seat 19 to rotate when it rotates, but only transmits axial pressure. The sliding cooperation between the limiting rod 1002 and the limiting sleeve 1001 further constrains the movement trajectory of the harness seat 19, preventing it from deviating or shaking, thereby ensuring the stability of the wire harnessing process and the positioning accuracy of the lines.

[0040] Both the fins 111 and the housing of the module body 1 are made of aluminum alloy, which can quickly conduct heat generated by internal electronic components. The motor 33 drives the blades 34 to rotate and generate airflow. The airflow is guided to the surface of the fins 111 through the frame 32, which enhances the efficiency of convection heat dissipation. In terms of installation, the module supports multi-directional fixation: horizontal installation can be achieved through the mounting hole 21 on the edge protrusion 2, while the mounting hole 23 on the mounting bracket 22 supports vertical installation, which can adapt to different equipment layout requirements. The rod seat 3 and the connecting rod 31 can be quickly disassembled and assembled by the insertion of the positioning pin 3002 and the positioning seat 3004. The user can release the lock by pulling the positioning pin 3002 to compress the spring 3003, which is convenient for adjusting or disassembling the frame 32 and heat dissipation components. The pad 110 provides insulation and elevation function, and the rubber material is shock-absorbing and anti-slip, which further improves the environmental adaptability of the module.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A motor protection module based on dual CAN bus, comprising a module body (1), characterized in that: An interface assembly (11) is provided on one side of the module body (1). A base plate (12) is fixedly installed at the lower end of the module body (1). A base plate (13) is fixedly installed on the upper end of the base plate (12) on one side of the interface assembly (11) via a bracket. A top plate (14) is fixedly installed on both sides of the upper end of the base plate (13) via a bracket. A threaded sleeve (15) is fixed through the center of the top plate (14). A threaded rod (16) is provided through the internal thread of the threaded sleeve (15). A knob (17) is installed at the upper end of the threaded rod (16). A bearing (18) is provided at the lower end of the threaded rod (16). The inner ring wall of the bearing (18) is installed with an interference fit to the end of the threaded rod (16). A wire harness seat (19) is installed at the lower end of the bearing (18).

2. The motor protection module based on dual CAN bus according to claim 1, characterized in that: Limiting sleeves (1001) are provided through both sides of the top plate (14), and limiting rods (1002) corresponding to the positions of the limiting sleeves (1001) are fixedly installed on both sides of the upper end of the cable tie seat (19). The surface of the limiting rods (1002) is slidably sleeved with the inside of the limiting sleeves (1001).

3. The motor protection module based on a dual CAN bus according to claim 2, characterized in that: The lower end of the housing of the module body (1) is symmetrically distributed with pads (110) for horizontal placement, and the upper end of the housing of the module body (1) is equipped with fins (111) for heat dissipation and heat conduction.

4. A motor protection module based on a dual CAN bus according to claim 3, characterized in that: The module body (1) has edge protrusions (2) on both sides at the end away from the interface assembly (11), and mounting holes (21) are provided on the edge protrusions (2).

5. A motor protection module based on a dual CAN bus according to claim 4, characterized in that: The surface of the edge protrusion (2) is symmetrically equipped with mounting brackets (22) along the vertical position. The mounting brackets (22) are right-angle bent structures, and mounting holes (23) are opened on the mounting brackets (22) to penetrate its interior.

6. A motor protection module based on a dual CAN bus according to claim 5, characterized in that: Both sides of the upper end of the module body (1) are fixed with rod seats (3), and a connecting rod (31) is inserted inside the rod seat (3). The connecting rod (31) has an L-shaped structure.

7. A motor protection module based on a dual CAN bus according to claim 6, characterized in that: Two connecting rods (31) distributed on both sides are fixedly installed with the same frame (32). A motor (33) is fixedly installed on the inner side of the frame (32) by a bracket. The motor (33) has a shaft for driving inside, and several blades (34) are fixedly distributed on the surface of the shaft.

8. A motor protection module based on a dual CAN bus according to claim 7, characterized in that: A positioning sleeve (3001) is fixedly installed on one side of the rod seat (3) by a bracket. A positioning pin (3002) is slidably sleeved inside the positioning sleeve (3001). A spring (3003) is wound around the surface of the positioning pin (3002). The two ends of the spring (3003) are fixedly installed to the end face of the positioning sleeve (3001) and the surface of the positioning pin (3002), respectively.

9. A motor protection module based on a dual CAN bus according to claim 8, characterized in that: The surface of the connecting rod (31) is fitted with a positioning seat (3004), and the end of the positioning pin (3002) away from the spring (3003) slides into and docks with the inside of the positioning seat (3004).

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