Body motor protection lower protection plate

Abstract

The utility model relates to the technical field of automobile protecting plates, in particular to a lower protecting plate for protecting an automobile body motor, which comprises a lower protecting plate body, a first baffle plate, a second baffle plate, a third baffle plate and a fourth baffle plate, and a plurality of reinforcing units are arranged on the second baffle plate and the third baffle plate. The multiple reinforcement units are transversely arranged on the second baffle and the third baffle at equal intervals, a plurality of first heat dissipation holes are formed in the two sides of the multiple reinforcement units, flow guide units are further arranged on the second baffle and the third baffle, and each flow guide unit comprises a first flow guide protrusion; one side of each first heat dissipation hole is provided with a plurality of first flow guide protrusions, the heat dissipation holes are protected through the first flow guide protrusions, the drainage effect is achieved, the heat dissipation efficiency is improved, and meanwhile the reinforcing units can improve the protection strength under the condition that the weight of the lower protection plate is not increased.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile guard plates, in particular to a lower guard plate for protecting a motor of a vehicle body. Background Art

[0002] Modern vehicles, especially electric and hybrid vehicles, have an increasing need for motor protection. This is because the motor is typically located at the bottom of the vehicle and is one of the most expensive and critical components. However, existing motor underbody shields feature multiple heat dissipation holes to improve heat dissipation. However, these holes remove the motor's protection, allowing mud, stones, and other particles to enter the underbody shield through the holes, damaging the motor. Furthermore, existing motor underbody shields only feature heat dissipation holes and lack drainage, resulting in hot air being trapped within the underbody shield, leading to inefficient heat dissipation. Furthermore, existing underbody shields are often made of heavier materials to enhance their protective capabilities, which undoubtedly increases the vehicle's weight and reduces mileage.

[0003] Therefore, there is an urgent need for a vehicle body motor protection lower guard plate to solve the problems existing in the current technology. Utility Model Content

[0004] In view of this, the present invention proposes a vehicle body motor protection lower guard plate, which aims to solve the problems of motor protection and heat dissipation of the existing lower guard plate.

[0005] The utility model provides a vehicle body motor protection lower guard plate, comprising:

[0006] The lower guard plate body, the lower guard plate body, the lower guard plate body includes: a first baffle, a second baffle, a third baffle and a fourth baffle, one side of the first baffle is fixedly connected to the second baffle and the third baffle, the other side of the second baffle and the third baffle is fixedly connected to the fourth baffle, the second baffle and the third baffle are provided with reinforcement units, a number of the reinforcement units are provided, and a number of the reinforcement units are arranged equidistantly on the second baffle and the third baffle laterally, a number of first heat dissipation holes are provided on both sides of the reinforcement units, and a guide unit is also provided on the second baffle and the third baffle, the guide unit includes a first guide protrusion, and a number of first guide protrusions are provided on one side of the first heat dissipation holes, and the number of the first guide protrusions corresponds to the number of the first heat dissipation holes.

[0007] Furthermore, the reinforcement unit includes a first reinforcement member, a second reinforcement member, a third reinforcement member, a fourth reinforcement member, a fifth reinforcement member, a sixth reinforcement member, a seventh reinforcement member, an eighth reinforcement member and a ninth reinforcement member;

[0008] The second baffle is provided with a first reinforcing piece, a second reinforcing piece, a third reinforcing piece and a fourth reinforcing piece;

[0009] The fifth reinforcing member is provided at the connection between the second baffle and the third baffle;

[0010] The third baffle is provided with a sixth reinforcing piece, a seventh reinforcing piece, an eighth reinforcing piece and a ninth reinforcing piece.

[0011] Furthermore, the guide unit also includes a second guide protrusion and a first guide groove. There are several second guide protrusions, and several of the second guide protrusions are arranged on the side of the first heat dissipation hole. The first guide groove is arranged on the side of the third baffle close to the fourth baffle.

[0012] Furthermore, it also includes a second heat dissipation hole, a third heat dissipation hole, a fourth heat dissipation hole and a fifth heat dissipation hole, the second heat dissipation hole is arranged on one side of the first guide groove, the third heat dissipation hole is arranged on one side of the connection between the second baffle and the third baffle, the fourth heat dissipation hole is arranged between the second reinforcement and the third reinforcement, and the fifth heat dissipation hole is arranged between the seventh reinforcement and the eighth reinforcement.

[0013] Furthermore, it also includes a sixth heat dissipation hole and a seventh heat dissipation hole, the sixth heat dissipation hole is vertically arranged on the fourth reinforcing member, and the seventh heat dissipation hole is horizontally arranged between the fifth reinforcing member and the sixth reinforcing member.

[0014] Furthermore, the reinforcement unit further includes a first reinforcement groove, a second reinforcement groove and a third reinforcement groove;

[0015] The first reinforcement groove is arranged on the side of the first baffle close to the second baffle and the third baffle, the second reinforcement groove is arranged on the second baffle, and the third reinforcement groove is arranged on the third baffle. The second reinforcement groove and the third reinforcement groove are arranged axially symmetrically.

[0016] Furthermore, it further comprises a flanging unit, wherein the flanging unit comprises a first flanging and a second flanging;

[0017] The first flange is arranged on the left side of the first baffle, and the second flange is arranged on the left side of the fourth baffle.

[0018] Furthermore, the fourth baffle is also provided with a first limiting groove, a plurality of first limiting grooves are provided, and the first limiting grooves are provided with bolt limiting holes.

[0019] Furthermore, it also includes a second limiting groove, and there are several second limiting grooves, and several of the second limiting grooves are fixedly connected to the limiting protrusion, and the limiting protrusion has a bolt limiting hole, and several of the second limiting grooves are respectively arranged on the first baffle, the second baffle, the third baffle and the fourth baffle.

[0020] Furthermore, the reinforcement unit further includes a first reinforcement protrusion, which is arranged on the fourth baffle plate, and the first reinforcement protrusion is axially symmetrical about the connection between the second guard plate and the third guard plate.

[0021] Compared with the prior art, the beneficial effect of the present invention is that the present invention partitions the lower guard plate, changes the force distribution of the guard plate, and enhances the overall structural strength and rigidity. Different areas are set differently according to the force conditions to avoid overall deformation or damage of the guard plate when it vibrates or is impacted by external forces. At the same time, the reinforcement units are arranged equidistantly in the horizontal direction without increasing the weight of the lower guard plate, thereby enhancing the overall structural strength and force area and avoiding excessive stress in local areas, thereby reducing deformation and stress concentration of the guard plate itself and improving durability. Moreover, the gaps between the reinforcement units can guide air flow, thereby improving heat dissipation performance, and the heat dissipation holes are set in the gaps between the reinforcement units to facilitate the exchange of air inside the lower guard plate with the outside air. Each heat dissipation hole is provided with a first guide protrusion, which not only prevents mud, stones, etc. from entering the lower guard plate during driving, thereby affecting the operation of the motor, but also guides the airflow, accelerates airflow exchange, and improves heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a vehicle body motor protection lower guard plate provided by an embodiment of the utility model;

[0023] Figure 2 A schematic diagram of a vehicle body motor protection lower guard plate provided in an embodiment of the utility model.

[0024] Among them: 1. Lower guard plate body; 101. First baffle; 102. Second baffle; 103. Third baffle; 104. Fourth baffle; 2. Reinforcement unit; 201. First reinforcement; 202. Second reinforcement; 203. Third reinforcement; 204. Fourth reinforcement; 205. Fifth reinforcement; 206. Sixth reinforcement; 207. Seventh reinforcement; 208. Eighth reinforcement; 209. Ninth reinforcement; 210. First reinforcement groove; 211. Second reinforcement groove; 212. Third reinforcement Reinforcement groove; 213, first reinforcement protrusion; 301, first heat dissipation hole; 302, second heat dissipation hole; 303, third heat dissipation hole; 304, fourth heat dissipation hole; 305, fifth heat dissipation hole; 306, sixth heat dissipation hole; 307, seventh heat dissipation hole; 4, guide unit; 401, first guide protrusion; 402, second guide protrusion; 403, first guide groove; 501, first flange; 502, second flange; 601, first limiting groove; 602, second limiting groove; 603, limiting protrusion. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0026] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0029] See Figure 1 、 Figure 2As shown, this embodiment provides a vehicle body motor protection lower guard plate, comprising: a lower guard plate body 1, the lower guard plate body 1, the lower guard plate body 1 comprising: a first baffle 101, a second baffle 102, a third baffle 103 and a fourth baffle 104, one side of the first baffle 101 is fixedly connected to the second baffle 102 and the third baffle 103, the other side of the second baffle 102 and the third baffle 103 is fixedly connected to the fourth baffle 104, the second baffle 102 and the third baffle 103 are provided with a reinforcement unit 2, There are several reinforcement units 2, and several of the reinforcement units 2 are arranged equidistantly on the second baffle 102 and the third baffle 103. Several first heat dissipation holes 301 are provided on both sides of the reinforcement units 2. The second baffle 102 and the third baffle 103 are also provided with a guide unit 4, and the guide unit 4 includes a first guide protrusion 401. Several first guide protrusions 401 are provided on one side of the first heat dissipation holes 301, and the number of the first guide protrusions 401 corresponds to the number of the first heat dissipation holes 301.

[0030] Specifically, the lower guard plate body 1 is divided into a first baffle 101, a second baffle 102, a third baffle 103 and a fourth baffle 104. By partitioning the lower guard plate body 1, corresponding reinforcement settings can be made according to the stress conditions of different areas. Without increasing the weight of the lower guard plate body 1, the anti-vibration and anti-impact performance of the lower guard plate body 1 can be improved. Reinforcement units 2 are laterally arranged on the second guard plate and the third guard plate. The second guard plate and the third guard plate are the central guard plate area, and the probability and stress of bearing impact are the largest. Therefore, the reinforcement unit 2 can disperse and withstand the external force, thereby reducing the deformation and stress concentration of the lower guard plate body 1. At the same time, the second guard plate and The third guard plate is provided with a first heat dissipation hole 301, which is provided in the gap between the reinforcement units 2. The reinforcement unit 2 is convex, and its gap can be used as a channel to guide the air flow. Therefore, the first heat dissipation hole 301 is provided in the gap between the reinforcement units 2 to increase the heat exchange efficiency and reduce the temperature inside the lower guard plate. The first heat dissipation hole 301 is provided with a first guide protrusion 401. The first guide protrusion 401 can play a role in blocking mud, stones and other objects that can easily damage the motor. At the same time, the first guide protrusion 401 is U-shaped, and its back is a fastback setting, which can better guide air circulation and increase heat dissipation efficiency.

[0031] It's understood that the lower guard plate body 1 is divided into a first baffle 101, a second baffle 102, a third baffle 103, and a fourth baffle 104, allowing for appropriate reinforcement arrangements based on the stress conditions in different areas. In particular, the second and third baffles 102, 103, as the central guard plate areas, experience the greatest probability of impact and stress. Therefore, several reinforcement units 2 are arranged equidistantly across the second and third baffles 102, 103. These reinforcement units 2 are raised in a manner that disperses and withstands external forces, thereby reducing deformation and stress concentration within the lower guard plate body 1. This improves the overall structural strength and impact resistance, extends the service life of the guard plate, and provides more reliable protection.

[0032] The reinforcement units 2 not only enhance the structural strength but also improve the vibration resistance of the lower guard plate. During vehicle operation, the motor and chassis generate continuous vibrations. If not effectively controlled, these vibrations can cause fatigue damage to the guard plate. By equidistantly arranging the reinforcement units 2 laterally, the vibration energy is dispersed and absorbed, thereby reducing damage to the guard plate itself.

[0033] First heat dissipation holes 301 are provided on both the second baffle 102 and the third baffle 103. These heat dissipation holes are located in the gaps between the reinforcement units 2. Because the reinforcement units 2 are raised, the gaps therebetween naturally form channels for air flow, allowing air to flow smoothly through the heat dissipation holes. This improves heat exchange efficiency and reduces the temperature inside the lower guard plate. This allows for rapid heat dissipation, especially when the motor is running at high speed and generates a large amount of heat, thus preventing motor performance degradation or damage due to overheating.

[0034] The air guide unit 4 includes a first air guide protrusion 401. Several first air guide protrusions 401 are arranged on one side of the first heat dissipation hole 301, and their number corresponds to the number of first heat dissipation holes 301. The first air guide protrusions 401 adopt a U-shaped design with a sloping back. This not only prevents mud, stones, and other objects that could damage the motor from entering the heat dissipation hole, but also better guides air circulation, further increasing heat dissipation efficiency. This allows the lower guard plate to not only provide heat dissipation but also protect the motor from external damage, providing more comprehensive protection.

[0035] In some embodiments of the present application, see Figure 2 As shown, the reinforcement unit 2 includes a first reinforcement 201, a second reinforcement 202, a third reinforcement 203, a fourth reinforcement 204, a fifth reinforcement 205, a sixth reinforcement 206, a seventh reinforcement 207, an eighth reinforcement 208 and a ninth reinforcement 209;

[0036] The second baffle 102 is provided with a first reinforcing piece 201 , a second reinforcing piece 202 , a third reinforcing piece 203 and a fourth reinforcing piece 204 ;

[0037] The fifth reinforcing member 205 is provided at the connection between the second baffle 102 and the third baffle 103;

[0038] The third baffle 103 is provided with a sixth reinforcing piece 206 , a seventh reinforcing piece 207 , an eighth reinforcing piece 208 and a ninth reinforcing piece 209 .

[0039] Specifically, the reinforcement units 2 arranged equidistantly on the second baffle 102 and the third baffle 103 include a first reinforcement 201, a second reinforcement 202, a third reinforcement 203, a fourth reinforcement 204, a fifth reinforcement 205, a sixth reinforcement 206, a seventh reinforcement 207, an eighth reinforcement 208 and a ninth reinforcement 209, wherein the first reinforcement 201 and the ninth reinforcement 209 are respectively arranged at the outermost sides of the second baffle 102 and the third baffle 103, and the remaining second reinforcement 202, the third reinforcement 203, the fourth reinforcement 204, the fifth reinforcement 205, the sixth reinforcement 206, the seventh reinforcement 207, the eighth reinforcement 208 and the ninth reinforcement 209. 206, the seventh reinforcer 207 and the eighth reinforcer 208 are arranged on the second baffle 102 and the third baffle 103, wherein the fifth reinforcer 205 is arranged at the connection between the second baffle 102 and the third baffle 103, and they are arranged equidistantly, and a guide channel is formed between the reinforcers. The reinforcers are convex structures, and their two sides can guide the airflow into the guide channel, thereby increasing the efficiency of the drainage and thus increasing the heat dissipation efficiency. Correspondingly, the reinforcers inside the lower guard plate are convex structures, and the reinforcers outside the lower guard plate are groove structures, which can also disperse stress when encountering objects such as stones.

[0040] As can be understood, the reinforcement unit 2 enhances the overall structural strength and stability of the lower guard plate. The nine reinforcements, equally spaced on the second and third baffles 102, 103—including the first reinforcement 201, second reinforcement 202, third reinforcement 203, fourth reinforcement 204, fifth reinforcement 205, sixth reinforcement 206, seventh reinforcement 207, eighth reinforcement 208, and ninth reinforcement 209—ensure the integrity and functionality of the lower guard plate under various dynamic forces. The first reinforcement 201 and ninth reinforcement 209 are positioned at the outermost edges of the second and third baffles 102, 103, respectively, providing edge protection and support. The remaining reinforcements are evenly distributed across the second and third baffles 102, 103, distributing and withstanding external forces. This reduces deformation and stress concentration within the lower guard plate body 1, thereby enhancing its durability and reliability.

[0041] The equidistant arrangement of the reinforcements ensures uniform stress distribution, thereby improving the lower guard's impact and vibration resistance. During vehicle operation, the lower guard is subject to various dynamic forces. The reinforcements effectively disperse and absorb these forces, preventing structural damage caused by stress concentration. Furthermore, the reinforcements on the outer surface of the lower guard are recessed, which helps disperse stress when encountering objects such as stones, reducing deformation or damage caused by localized excessive force. Furthermore, the reinforcements are raised on both sides, directing airflow into the guide channels, increasing drainage efficiency and thus improving heat dissipation. The guide channels between the reinforcements form a natural air flow path, allowing air to flow smoothly through the heat dissipation area, thereby improving heat exchange efficiency. Heat within the lower guard is quickly dissipated, especially when the motor is running at high speed and generating a large amount of heat. This can reduce the temperature inside the lower guard and prevent motor performance degradation or damage due to overheating.

[0042] In some embodiments of the present application, the guide unit 4 also includes a second guide protrusion 402 and a first guide groove 403, and there are several second guide protrusions 402, and several second guide protrusions 402 are arranged on the side of the first heat dissipation hole 301, and the first guide groove 403 is arranged on the side of the third baffle 103 close to the fourth baffle 104.

[0043] Specifically, a second guide protrusion 402 is provided on the left and / or right side of the first heat dissipation hole 301. The second guide protrusion 402 is also arranged in a fastback style. The second guide protrusion 402 is a sealed U-shaped triangular design. There are several second guide protrusions 402. The bottom edges of some second guide protrusions 402 face the first heat dissipation hole 301, and the corners of the remaining second guide protrusions 402 face the first heat dissipation hole 301. At the same time, a first guide groove 403 is also provided on the third guard plate.

[0044] It is understood that the second guide protrusion 402 improves air flow and heat dissipation efficiency. The second guide protrusion 402 has a sealed U-shaped triangular design that can guide air flow, allowing air to flow smoothly through the heat dissipation hole area, thereby improving the efficiency of heat exchange and ensuring that the heat inside the lower guard plate can be quickly dissipated.

[0045] There are two ways to set the second guide protrusion 402: one is that the bottom edge faces the first heat dissipation hole 301, and the other is that the corner faces the first heat dissipation hole 301. Multi-directional diversion allows the air to be guided at different angles and directions, increasing the heat dissipation performance and adaptability of the diversion channel. Regardless of how the vehicle's driving direction and the airflow direction change, this design can ensure the air flow path, thereby improving the heat dissipation efficiency. The U-shaped triangular design of the second guide protrusion 402 not only improves the diversion capacity, but also provides additional protection. The sealed U-shaped structure can prevent mud, stones and other objects that are easy to damage the motor from hitting the lower guard plate, which plays a role in dispersing stress, protecting the key components inside the motor and the lower guard plate, and can reduce damage to the motor and the lower guard plate by the external environment, thereby extending their service life.

[0046] The fastback design of the second air guide protrusion 402 not only facilitates air flow but also enhances structural strength, distributing and withstanding external forces, reducing deformation and stress concentration on the lower guard plate. Furthermore, the first air guide groove 403, positioned on the side of the third baffle 103 near the fourth baffle 104, further optimizes stress distribution, ensuring the integrity of the entire structure remains intact despite impact and vibration.

[0047] At the same time, the first guide groove 403, the second guide protrusion 402, and the first guide protrusion 401 complement each other to form a complete airflow and heat dissipation system. The first guide groove 403 is located on the side of the third baffle 103 near the fourth baffle 104, which can guide the edge air flow and increase heat dissipation efficiency. This not only improves overall performance, but also reduces the number and complexity of components, thereby reducing production and maintenance costs.

[0048] In some embodiments of the present application, second heat dissipation holes 302, third heat dissipation holes 303, fourth heat dissipation holes 304 and fifth heat dissipation holes 305 are further included. The second heat dissipation holes 302 are arranged on one side of the first guide groove 403, the third heat dissipation holes 303 are arranged on one side of the connection between the second baffle 102 and the third baffle 103, the fourth heat dissipation holes 304 are arranged between the second reinforcement 202 and the third reinforcement 203, and the fifth heat dissipation holes 305 are arranged between the seventh reinforcement 207 and the eighth reinforcement 208.

[0049] Specifically, the second heat dissipation hole 302, the third heat dissipation hole 303, the fourth heat dissipation hole 304 and the fifth heat dissipation hole 305 are circular heat dissipation holes, which are distributed on the second baffle 102 and the third baffle 103, and play a role in assisting the heat dissipation of the air. Among them, the second heat dissipation hole 302 and the third heat dissipation hole 303 can dissipate the hot air at the edge, further improving the heat dissipation efficiency. At the same time, if fluids such as water enter the lower guard plate, the heat dissipation holes can also play a role in drainage, maintaining a dry environment inside the lower guard plate.

[0050] As can be appreciated, the four heat dissipation holes distributed across the second baffle 102 and the third baffle 103 improve the overall heat dissipation efficiency of the lower guard plate. The second heat dissipation hole 302 and the third heat dissipation hole 303 are located on one side of the first air guide groove 403 and on the side where the second baffle 102 and the third baffle 103 meet, respectively. They dissipate heat from the edges, further improving heat dissipation efficiency. The fourth heat dissipation hole 304 and the fifth heat dissipation hole 305 are located between the second reinforcement 202 and the third reinforcement 203, and between the seventh reinforcement 207 and the eighth reinforcement 208, respectively. This ensures a uniform and comprehensive distribution of heat dissipation holes, allowing heat within the lower guard plate to be quickly dissipated. The heat dissipation holes not only improve heat dissipation efficiency but also optimize the air flow path. The second and third heat dissipation holes 302 and 303 guide air through the key heat dissipation areas of the lower guard plate, forming a natural air flow path, thereby improving air flow efficiency and ensuring that air flows smoothly through the heat dissipation areas, removing heat and reducing the temperature within the lower guard plate.

[0051] In addition to dissipating heat, the vents also provide drainage, further enhancing practicality. When water or other fluids enter the underguard, the vents drain away the water, maintaining a dry environment inside the underguard. The vents prevent water from accumulating inside the underguard, preventing corrosion and damage caused by moisture. Furthermore, maintaining a dry environment inside the underguard extends the life of the motor and improves the overall reliability and safety of the vehicle.

[0052] The circular heat dissipation holes can prevent mud, stones and other objects from entering the lower guard plate to a certain extent, thereby protecting the motor and key components inside the lower guard plate.

[0053] In some embodiments of the present application, a sixth heat dissipation hole 306 and a seventh heat dissipation hole 307 are further included. The sixth heat dissipation hole 306 is vertically arranged on the fourth reinforcement 204 , and the seventh heat dissipation hole 307 is horizontally arranged between the fifth reinforcement 205 and the sixth reinforcement 206 .

[0054] Specifically, the sixth heat dissipation hole 306 and the seventh heat dissipation hole 307 have larger openings than other heat dissipation holes, and the sixth heat dissipation hole 306 and the seventh heat dissipation hole 307 are arranged in the central area of ​​the lower guard plate. When the motor is running, the heat in the central area is the highest. At this time, the sixth heat dissipation hole 306 and the seventh heat dissipation hole 307 can play a major role in heat dissipation.

[0055] It is understandable that the sixth heat dissipation hole 306 and the seventh heat dissipation hole 307 are arranged in the central area of ​​the lower guard plate, which is usually the area where the most heat is generated when the motor is running. Since the motor generates a large amount of heat during operation, especially when operating at high load, the heat accumulation in the central area is particularly obvious. Due to their larger openings, the sixth heat dissipation hole 306 and the seventh heat dissipation hole 307 can quickly dissipate the heat in the central area, thereby avoiding overheating caused by heat accumulation. Compared with other heat dissipation holes, the larger opening allows more air to flow through the heat dissipation holes, thereby removing more heat. The vertically arranged sixth heat dissipation hole 306 and the horizontally arranged seventh heat dissipation hole 307 optimize air flow efficiency by designing air flow paths in different directions. Multi-directional air flow can improve heat dissipation efficiency and ensure that the motor can maintain good heat dissipation performance under various operating conditions. Due to their larger openings, the sixth heat dissipation hole 306 and the seventh heat dissipation hole 307 also have a higher heat dissipation capacity. When the motor is running at high load or continuously for a long time, the sixth heat dissipation hole 306 and the seventh heat dissipation hole 307 can handle more heat, thereby ensuring that the temperature inside the lower guard plate is always kept within a controllable range.

[0056] In some embodiments of the present application, the reinforcement unit 2 further includes a first reinforcement groove 210 , a second reinforcement groove 211 and a third reinforcement groove 212 ;

[0057] The first reinforcement groove 210 is arranged on the side of the first baffle 101 close to the second baffle 102 and the third baffle 103, the second reinforcement groove 211 is arranged on the second baffle 102, and the third reinforcement groove 212 is arranged on the third baffle 103. The second reinforcement groove 211 and the third reinforcement groove 212 are arranged axially symmetrically.

[0058] It can be understood that the first reinforcement groove 210, the second reinforcement groove 211 and the third reinforcement groove 212 enhance the structural strength and rigidity of the entire lower guard plate, can disperse and withstand externally applied forces, and reduce deformation and stress concentration of the lower guard plate when subjected to impact and vibration. The second reinforcement groove 211 and the third reinforcement groove 212 are arranged axially symmetrically. The symmetry can evenly disperse stress, so that the entire structure can maintain its integrity and functionality when subjected to forces in various directions, while also optimizing stress distribution. The first reinforcement groove 210 is arranged on the side of the first baffle 101 close to the second baffle 102 and the third baffle 103, and can disperse and guide stress from multiple directions, reducing stress concentration points. The axial symmetry of the second reinforcement groove 211 and the third reinforcement groove 212 ensures uniform distribution of stress on the second baffle 102 and the third baffle 103, avoiding damage caused by excessive local stress. During vehicle operation, the lower guard plate is subject to impacts from various objects such as pebbles and mud on the road, which can cause deformation and damage to the lower guard plate. The first, second, and third reinforcement grooves 210, 211, and 212, by increasing the thickness and strength of the lower guard plate, can absorb and disperse these impacts, reducing their impact on key components within the lower guard plate.

[0059] In some embodiments of the present application, a flanging unit is further included, and the flanging unit includes a first flanging 501 and a second flanging 502;

[0060] The first flange 501 is disposed on the left side of the first baffle 101 , and the second flange 502 is disposed on the left side of the fourth baffle 104 .

[0061] It can be understood that the first flange 501 and the second flange 502 enhance the structural strength and rigidity of the lower guard plate body 1. The flange increases the guard plate's moment of inertia, thereby improving its bending and torsional resistance. The first flange 501, located to the left of the first guard plate 101, enhances its resistance to lateral impacts, reducing deformation and stress concentration. Similarly, the second flange 502, located to the left of the fourth guard plate 104, increases its thickness and strength, thereby improving its impact resistance.

[0062] The flange unit not only enhances structural strength but also optimizes stress distribution. The arrangement of the first flange 501 and the second flange 502 guides and disperses stress, preventing localized damage caused by stress concentration. The first flange 501, located to the left of the first baffle 101, effectively disperses stress from the left side, while the second flange 502, located to the left of the fourth baffle 104, disperses stress from the right side.

[0063] The design of the flange unit also significantly improves the impact resistance of the lower guard plate. During the driving of the vehicle, the lower guard plate will be impacted by various objects such as pebbles and mud on the road, and these impacts may cause deformation and damage to the lower guard plate. The setting of the first flange 501 and the second flange 502 can effectively absorb and disperse these impact forces by increasing the thickness and strength of the baffle, reducing the impact on the key components inside the lower guard plate. In particular, the first flange 501 is located on the left side of the first baffle 101, and the second flange 502 is located on the left side of the fourth baffle 104. This layout can provide all-round protection, so that the lower guard plate has good impact resistance in all directions. Under harsh road conditions such as mud and gravel, this design can effectively reduce the damage of the external environment to the motor and the lower guard plate, and extend their service life.

[0064] The flange unit not only enhances structural strength and protective performance, but also optimizes air flow and heat dissipation. The first flange 501 and the second flange 502 guide air through the key heat dissipation areas of the lower guard plate, forming a natural air flow channel and improving air flow efficiency. Furthermore, the flange unit reduces air turbulence and lowers the drag coefficient, thereby improving the vehicle's overall energy efficiency.

[0065] The flange also reduces vibration and noise. During driving, the lower guard plate is subject to vibration and noise from the road, which can be transmitted into the vehicle interior, affecting driving comfort. The first flange 501 and the second flange 502 reduce vibration and noise by increasing the thickness and strength of the guard plate.

[0066] In some embodiments of the present application, a first limiting groove 601 is further provided on the fourth baffle 104 , and a plurality of first limiting grooves 601 are provided. The first limiting grooves 601 are provided with bolt limiting holes.

[0067] In some embodiments of the present application, a second limiting groove 602 is further included, and a plurality of second limiting grooves 602 are provided. The plurality of second limiting grooves 602 are fixedly connected to the limiting protrusion 603, and the limiting protrusion 603 has a bolt limiting hole. The plurality of second limiting grooves 602 are respectively provided on the first baffle 101, the second baffle 102, the third baffle 103 and the fourth baffle 104.

[0068] Specifically, the first limiting groove 601 and the second limiting groove 602 are used to fix and lock the lower guard plate body 1. A limiting protrusion 603 is provided on the second limiting groove 602, and a bolt limiting hole is provided on the limiting protrusion 603. The limiting protrusion 603 increases its firmness and reduces loosening caused by vibration or impact.

[0069] It is understandable that the first limiting groove 601 and the second limiting groove 602 enhance the structural firmness and stability of the lower guard plate body 1. By providing a plurality of limiting grooves and combining them with the bolt limiting holes, the lower guard plate body 1 can be fixed and locked to prevent it from being displaced or loosened during the driving of the vehicle. In particular, the limiting protrusion 603 provided on the second limiting groove 602 further increases the firmness of the connection point, ensuring that the lower guard plate can still maintain its shape and function unchanged when subjected to vibration and impact. The design of the limiting protrusion 603 not only improves the structural strength, but also improves the vibration and impact resistance of the lower guard plate. The first limiting groove 601 and the second limiting groove 602, through the combination of the bolt limiting holes and the limiting protrusion 603, can absorb and disperse these vibrations and impact forces, reducing their impact on the key components inside the lower guard plate.

[0070] The limiting groove and the limiting protrusion 603 not only improve the structural strength and connection reliability, but also optimize the stress distribution. The first limiting groove 601 and the second limiting groove 602 can guide and disperse stress, avoiding local damage caused by stress concentration.

[0071] In some embodiments of the present application, the reinforcement unit 2 further includes a first reinforcement protrusion 213 , which is disposed on the fourth baffle 104 , and is axially symmetrical about the connection between the second guard plate and the third guard plate.

[0072] It can be understood that by providing the bridge-shaped reinforcement protrusions on the fourth baffle 104, the key areas of the lower guard plate (particularly the connection between the second and third guard plates) receive additional support and reinforcement. This bridge-like structure can disperse and withstand loads from different directions when subjected to force, reducing stress concentration and thus preventing deformation or damage to the lower guard plate when subjected to external impact.

[0073] The axial symmetry of the first reinforcement protrusion 213 not only enhances structural strength but also optimizes stress distribution. Because the first reinforcement protrusion 213 is symmetrically positioned about the junction of the second and third guard plates, this symmetrical structure evenly distributes stress from different directions, preventing localized damage caused by stress concentration.

[0074] In each of the above-mentioned embodiments, a vehicle body motor protection lower guard plate partitions the lower guard plate to change the force distribution of the guard plate, thereby enhancing the overall structural strength and rigidity. Different areas are set differently according to the force conditions to prevent the guard plate from being deformed or damaged as a whole when vibrating or subjected to external force. At the same time, the reinforcement units 2 are arranged equidistantly in the horizontal direction without increasing the weight of the lower guard plate, thereby enhancing the overall structural strength and force area, avoiding excessive stress in local areas, thereby reducing deformation and stress concentration of the guard plate itself, and improving durability. In addition, the gaps between the reinforcement units 2 can guide air flow, thereby improving heat dissipation performance, and the heat dissipation holes are set in the gaps between the reinforcement units 2 to facilitate the exchange of air inside the lower guard plate with the outside air. Each heat dissipation hole is provided with a first guide protrusion 401. The first guide protrusion 401 can not only prevent mud, stones, etc. from entering the lower guard plate during driving, thereby affecting the operation of the motor, but also guide the airflow, accelerate airflow exchange, and improve heat dissipation efficiency.

[0075] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A vehicle body motor protection lower guard plate, characterized in that: include: The lower guard plate body includes: a first baffle, a second baffle, a third baffle and a fourth baffle, one side of the first baffle is fixedly connected to the second baffle and the third baffle, the other side of the second baffle and the third baffle is fixedly connected to the fourth baffle, the second baffle and the third baffle are provided with reinforcement units, and there are a number of reinforcement units, and the reinforcement units are arranged equidistantly on the second baffle and the third baffle laterally, and a number of first heat dissipation holes are provided on both sides of the reinforcement units, and the second baffle and the third baffle are also provided with a guide unit, the guide unit includes a first guide protrusion, and a number of first guide protrusions are provided on one side of the first heat dissipation holes, and the number of the first guide protrusions corresponds to the number of the first heat dissipation holes.

2. The vehicle body motor protection lower guard plate according to claim 1, characterized in that: The reinforcement unit includes a first reinforcement member, a second reinforcement member, a third reinforcement member, a fourth reinforcement member, a fifth reinforcement member, a sixth reinforcement member, a seventh reinforcement member, an eighth reinforcement member and a ninth reinforcement member; The second baffle is provided with a first reinforcing piece, a second reinforcing piece, a third reinforcing piece and a fourth reinforcing piece; The fifth reinforcing member is provided at the connection between the second baffle and the third baffle; The third baffle is provided with a sixth reinforcing piece, a seventh reinforcing piece, an eighth reinforcing piece and a ninth reinforcing piece.

3. The vehicle body motor protection lower guard plate according to claim 2, characterized in that: The guide unit further includes a second guide protrusion and a first guide groove. There are a plurality of second guide protrusions, and the plurality of second guide protrusions are arranged on the side of the first heat dissipation hole. The first guide groove is arranged on the side of the third baffle close to the fourth baffle.

4. The vehicle body motor protection lower guard plate according to claim 3, characterized in that: It also includes a second heat dissipation hole, a third heat dissipation hole, a fourth heat dissipation hole and a fifth heat dissipation hole, the second heat dissipation hole is arranged on one side of the first guide groove, the third heat dissipation hole is arranged on one side of the connection between the second baffle and the third baffle, the fourth heat dissipation hole is arranged between the second reinforcement and the third reinforcement, and the fifth heat dissipation hole is arranged between the seventh reinforcement and the eighth reinforcement.

5. The vehicle body motor protection lower guard plate according to claim 4, characterized in that: It also includes a sixth heat dissipation hole and a seventh heat dissipation hole. The sixth heat dissipation hole is vertically arranged on the fourth reinforcing member, and the seventh heat dissipation hole is horizontally arranged between the fifth reinforcing member and the sixth reinforcing member.

6. The vehicle body motor protection lower guard plate according to claim 1, characterized in that: The reinforcement unit further includes a first reinforcement groove, a second reinforcement groove and a third reinforcement groove; The first reinforcement groove is arranged on the side of the first baffle close to the second baffle and the third baffle, the second reinforcement groove is arranged on the second baffle, and the third reinforcement groove is arranged on the third baffle. The second reinforcement groove and the third reinforcement groove are arranged axially symmetrically.

7. The vehicle body motor protection lower guard plate according to claim 1, characterized in that: It also includes a flanging unit, wherein the flanging unit includes a first flanging and a second flanging; The first flange is arranged on the left side of the first baffle, and the second flange is arranged on the left side of the fourth baffle.

8. The vehicle body motor protection lower guard plate according to claim 1, characterized in that: The fourth baffle is further provided with a first limiting groove, a plurality of first limiting grooves are provided, and a bolt limiting hole is opened in the first limiting groove.

9. The vehicle body motor protection lower guard plate according to claim 8, characterized in that: It also includes a second limiting groove, which is provided in a plurality of numbers. The plurality of second limiting grooves are fixedly connected to the limiting protrusion, and the limiting protrusion has a bolt limiting hole. The plurality of second limiting grooves are respectively provided on the first baffle, the second baffle, the third baffle and the fourth baffle.

10. The vehicle body motor protection lower guard plate according to claim 1, characterized in that: The reinforcement unit further includes a first reinforcement protrusion, which is disposed on the fourth baffle plate and is axially symmetrical with respect to a connection between the second baffle plate and the third baffle plate.

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