Electronic brake device for micro motor

Abstract

The utility model relates to the field of power electronics, and disclose a kind of micro motor electronic brake device, including brake resistance, the outer surface of brake resistance is provided with mounting structure, and the one end of mounting structure is provided with battery heating plate.The utility model by rotating multiple bolts in turn, so that mounting sleeve plate moves upwards, and so that connecting block is separated from the inside of connecting groove, at this time, the disassembly of brake resistance can be completed, then new brake resistance can be inserted in the inside of mounting sleeve plate, then again rotating multiple bolts in turn, so that mounting sleeve plate is again adhered to the outer surface of the upper end of connecting plate, so that connecting block is inserted in the inside of connecting groove, and then the surface of brake resistance is adhered to the bottom surface of connecting plate, so the replacement of brake resistance can be completed, more time-saving and labor-saving, improve the practicability of device to some extent.

Description

Technical Field

[0001] This utility model relates to the field of power electronics technology; more specifically, it relates to a micro-motor electronic braking device. Background Technology

[0002] Electronic braking systems primarily achieve rapid stopping through two methods: reverse current braking and regenerative braking. When the controller receives a braking command, it immediately cuts off the motor drive power and simultaneously applies a reverse electromotive force. In reverse current braking mode, the controller briefly applies a reverse voltage, causing the motor to generate a braking torque opposite to its rotation direction. In regenerative braking mode, the motor's kinetic energy is converted into heat energy and dissipated through the braking resistor. Throughout the braking process, the rotational speed is monitored in real time by sensors, and the braking curve is precisely controlled using a PID algorithm to ensure smooth deceleration. This electronic braking method not only achieves millisecond-level response speeds but also effectively avoids mechanical wear, making it particularly suitable for applications requiring frequent starts and stops and high-precision positioning.

[0003] Currently, existing electronic braking devices suffer from several drawbacks. They typically use braking resistors to dissipate heat generated during braking. However, most of these resistors are integrated designs, and in practice, they can be damaged due to frequent braking, excessive load inertia, or breakdown of the braking transistor. Replacing these resistors is difficult and time-consuming, reducing the device's practicality. Furthermore, existing devices often rely on air cooling for heat dissipation, leading to wasted heat and reduced energy efficiency. In winter, electric vehicles heat their batteries to quickly restore performance; using additional heating devices would consume significant energy, further compromising the device's usability. Therefore, a micro-motor electronic braking device is urgently needed to address these issues. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a micro-motor electronic braking device to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a micro-motor electronic braking device, comprising: a braking resistor, wherein the outer surface of the braking resistor is provided with an installation structure, and one end of the installation structure is provided with a battery heating plate; the installation structure includes a connecting block, a connecting plate, an installation sleeve, bolts, springs, through grooves and connecting grooves.

[0006] Preferably, the connecting block is fixedly connected to the outer surface of one upper end of the braking resistor, and the bottom of the braking resistor is attached to the connecting plate. The outer surface of the braking resistor is fitted with a mounting sleeve. Bolts are threaded on the inner sides of the upper two outer surfaces of the connecting plate, and multiple sets of bolts are provided. Springs are fitted on the outer surfaces of the multiple sets of bolts. Through grooves are opened on the inner sides of the upper two outer surfaces of the mounting sleeve, and multiple sets of through grooves are provided. A connecting groove is opened on the inner wall surface of one upper end of the mounting sleeve. One end of the connecting plate is fixedly connected to one end of the battery heating plate. This design allows the braking resistor to be inserted into the inside of the mounting sleeve.

[0007] Preferably, the connecting block is a ramp block, the connecting groove is a ramp groove, and the internal dimensions of the ramp groove are adapted to the external dimensions of the ramp block. This design allows the connecting block to be inserted into the connecting groove.

[0008] Preferably, the external dimensions of the braking resistor are adapted to the internal dimensions of the mounting sleeve, which makes the braking resistor more stable when inserted into the mounting sleeve.

[0009] Preferably, a limiting ring is fixedly connected to the outer surface of the upper end of the spring, and the two ends of the spring abut against the outer surface of the upper end of the connecting plate and the bottom surface of the limiting ring, respectively. This design can buffer the vibration of the mounting plate through the elasticity of the spring itself.

[0010] Preferably, both the connecting plate and the battery heating plate are made of aluminum alloy. This design allows for the rapid transfer of heat generated by the braking resistor through the good thermal conductivity of the materials themselves.

[0011] The technical effects and advantages of this utility model are as follows: By rotating multiple sets of bolts in sequence, the mounting sleeve plate moves upward and the connecting block disengages from the inside of the connecting groove, thus completing the disassembly of the braking resistor. Then, a new braking resistor can be inserted into the inside of the mounting sleeve plate. Subsequently, the multiple sets of bolts are rotated in sequence again, causing the mounting sleeve plate to once again adhere to the outer surface of the upper end of the connecting plate, thereby allowing the connecting block to be inserted into the inside of the connecting groove. This, in turn, causes the surface of the braking resistor to adhere to the bottom surface of the connecting plate, thus completing the replacement of the braking resistor. This method is time-saving and labor-saving, and improves the practicality of the device to a certain extent. By combining the connecting plate with the battery heating plate, the heat generated by the braking resistor can be guided to the interior of the battery heating plate, thereby heating and keeping the battery warm and quickly restoring its performance in winter. This improves the practicality of the device to a certain extent. Moreover, its overall structure is simple and reasonable, highly practical, and easy to promote and apply. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a three-dimensional exploded view of the installation structure of this utility model.

[0014] Figure 3 This utility model Figure 2 Enlarged diagram of point A in the middle.

[0015] Figure 4 This is a schematic diagram of the usage state of this utility model.

[0016] The attached diagram is labeled as follows: 1. Braking resistor; 2. Mounting structure; 21. Connecting block; 22. Connecting plate; 23. Mounting sleeve; 24. Bolt; 25. Spring; 26. Through groove; 27. Connecting groove; 3. Battery heating plate. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The power electronics involved in this utility model are not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Example 1, as Figures 1-4 As shown, this embodiment proposes a micro motor electronic braking device, including: a braking resistor 1, an mounting structure 2 is provided on the outer surface of the braking resistor 1, and a battery heating plate 3 is provided at one end of the mounting structure 2; The mounting structure 2 includes a connecting block 21, a connecting plate 22, a mounting sleeve 23, bolts 24, springs 25, through grooves 26, and a connecting groove 27. The connecting block 21 is fixedly connected to the outer surface of one upper end of the braking resistor 1, and the bottom of the braking resistor 1 is attached to the connecting plate 22. The outer surface of the braking resistor 1 is fitted with the mounting sleeve 23. Bolts 24 are threaded on the inner surfaces of the outer surfaces on both sides of the upper end of the connecting plate 22, and multiple sets of bolts 24 are provided. Springs 25 are fitted on the outer surfaces of all sets of bolts 24. Through grooves 26 are provided on the inner surfaces of the outer surfaces on both sides of the upper end of the mounting sleeve 23, and multiple sets of through grooves 26 are provided. The inner wall surface of one upper end of the mounting sleeve 23 is provided with a connecting groove 27. One end of the connecting plate 22 is connected to one end of the battery heating plate 3. The connection is fixed, with the connecting block 21 being a ramp block and the connecting groove 27 being a ramp groove. The internal dimensions of the ramp groove are adapted to the external dimensions of the ramp block, and the external dimensions of the braking resistor 1 are adapted to the internal dimensions of the mounting sleeve 23. This design makes the connecting block 21 more stable when inserted into the connecting groove 27. The position of the braking resistor 1 inside the mounting sleeve 23 can be positioned by inserting the connecting block 21 into the connecting groove 27. Furthermore, by rotating the bolt 24, the mounting sleeve 23 can be moved to fit against the outer surface of the upper end of the connecting plate 22, thereby allowing the braking resistor 1 inside the mounting sleeve 23 to fit against the outer surface of the upper end of the connecting plate 22, thus completing the connection between the braking resistor 1 and the connecting plate 22. A limiting ring is fixedly connected to the outer surface of the upper end of the spring 25. The two ends of the spring 25 abut against the outer surface of the upper end of the connecting plate 22 and the bottom surface of the limiting ring, respectively. This design, through the elastic design of the spring 25 itself, can improve the vibration resistance of the braking resistor 1 inside the mounting sleeve 23, thereby preventing the braking resistor 1 from being damaged by vibration. Both the connecting plate 22 and the battery heating plate 3 are made of aluminum alloy. This design utilizes the good thermal conductivity of the materials of the connecting plate 22 and the battery heating plate 3 to conduct the heat of the braking resistor 1 to the interior of the battery heating plate 3, thereby heating or keeping the battery warm.

[0019] Braking resistor 1 is a product that can be purchased directly on the market. Its principle, connection method and control method are all existing technologies that are well known to those skilled in the art, so they will not be described in detail here. Working principle: When the device is in use, by rotating multiple sets of bolts 24, the bolts 24 are moved upward, and the mounting sleeve 23 is no longer attached to the upper surface of the connecting plate 22. At this time, the braking resistor 1 can be inserted into the interior of the mounting sleeve 23. Then, the multiple sets of bolts 24 are rotated again, so that the mounting sleeve 23 gradually attaches to the upper surface of the connecting plate 22, and the connecting block 21 is inserted into the interior of the connecting groove 27, so that the connecting plate 22 and the braking resistor 1 are attached. At this time, the installation of the braking resistor 1 can be completed. The above process can be reversed to disassemble the braking resistor 1. The design of multiple sets of springs 25 can improve the buffering effect of the braking resistor 1, thereby avoiding damage to the braking resistor 1 due to vibration. At the same time, the good thermal conductivity of the connecting plate 22 and the battery heating plate 3 can heat or keep the electric vehicle battery warm. The above is the complete working principle of this utility model.

[0020] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A micro-motor electronic braking device, characterized in that, include: Braking resistor (1), the outer surface of the braking resistor (1) is provided with mounting structure (2), and one end of mounting structure (2) is provided with battery heating plate (3); The mounting structure (2) includes a connecting block (21), a connecting plate (22), a mounting sleeve (23), bolts (24), springs (25), through grooves (26) and connecting grooves (27). The connecting block (21) is fixedly connected to the outer surface of one end of the upper end of the braking resistor (1), and the bottom of the braking resistor (1) is attached to the connecting plate (22). The outer surface of the braking resistor (1) is fitted with the mounting sleeve (23). Bolts (24) are connected to the inner threads of the outer surfaces of the upper two sides of the connecting plate (22). There are multiple sets of bolts (24). Springs (25) are fitted to the outer surfaces of the multiple sets of bolts (24). Through grooves (26) are opened in the inner surfaces of the outer surfaces of the upper two sides of the mounting sleeve (23). There are multiple sets of through grooves (26). The inner wall surface of one end of the upper end of the mounting sleeve (23) is fitted with a connecting groove (27). One end of the connecting plate (22) is fixedly connected to one end of the battery heating plate (3).

2. The micro-motor electronic braking device according to claim 1, characterized in that: The connecting block (21) is a ramp block, and the connecting groove (27) is a ramp groove, and the internal dimensions of the ramp groove are adapted to the external dimensions of the ramp block.

3. The micro-motor electronic braking device according to claim 1, characterized in that: The external dimensions of the braking resistor (1) are adapted to the internal dimensions of the mounting sleeve (23).

4. The micro-motor electronic braking device according to claim 1, characterized in that: A limiting ring is fixedly connected to the outer surface of the upper end of the spring (25), and the two ends of the spring (25) abut against the outer surface of the upper end of the connecting plate (22) and the bottom surface of the limiting ring, respectively.

5. The micro-motor electronic braking device according to claim 1, characterized in that: Both the connecting plate (22) and the battery heating plate (3) are made of aluminum alloy.

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