New energy electric vehicle charger with rapid heat dissipation circuit board and heat dissipation method

Abstract

The invention discloses a new energy electric vehicle charger with a circuit board capable of achieving rapid heat dissipation and a heat dissipation method, and relates to the field of electric vehicle chargers. The new energy electric vehicle charger comprises a charger body, an auxiliary assembly is arranged below the charger body, and a shielding assembly is arranged at the top end of the charger body; the bearing box is fixed to the bottom end of the charger body, the auxiliary assembly is used for bearing the charger body after the charger body is heated, external heat absorbed by the charger body is reduced, the shielding assembly comprises a storage box, and the storage box is fixed to the top end of the charger body. Therefore, heat of the asphalt or concrete ground cannot be transmitted to the charger main body, the working temperature of the charger main body is prevented from being increased due to high temperature of the asphalt or concrete ground in summer, the temperature of the charger main body cannot be rapidly increased due to an external heat source, and a circuit board in the charger main body can continuously work at high temperature. Sources for the charger body to absorb heat sources from the outside are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle chargers, and in particular to a new energy electric vehicle charger with rapid heat dissipation of a circuit board and a heat dissipation method. Background Art

[0002] According to the existing information, the new energy electric vehicle charger is a device that provides charging services for electric vehicles. Its working principle is to convert the input mains voltage through a series of conversions and finally output a DC charging voltage suitable for electric vehicle batteries. In the design of the charger, it adopts a variety of protection measures, such as overcharge protection, over-discharge protection, short-circuit protection, etc., to ensure the safety of the battery and the charger. At the same time, the charger also has charging control functions such as constant current and constant voltage to ensure the stability and efficiency of the charging process. The above protection measures and control functions are all coordinated and controlled by the built-in circuit board of the charger. When various electronic components on the circuit board work for a long time, they will heat up, so it is necessary to equip the heat dissipation mechanism to assist the circuit board to work;

[0003] The existing authorized patents and existing equipment with the same technology and similar technology equipment of the same type still have the following problems in daily use:

[0004] At present, the heat dissipation parts of electric vehicle chargers are roughly divided into three types, namely, heat dissipation fins, air cooling mechanisms and liquid cooling mechanisms. At present, the direction of optimizing the heat dissipation capacity of chargers is mostly to improve the heat absorption capacity. However, due to the limitation of the volume of the charger, the performance of the above three heat dissipation devices will also be greatly limited. For example, the number of heat dissipation fins cannot be too large, the fan power cannot be too large, and the volume of refrigerant in liquid cooling is also small, which leads to its very limited heat dissipation capacity. However, the use scenario of the charger is uncontrollable, especially when used outdoors in summer. There are many external heat sources. One is direct sunlight on the charger, and the other is that the charger is placed on the ground. The asphalt or concrete ground also reaches more than 50 degrees in summer. These external heat sources will be absorbed by the charger and accelerate the heating speed of the charger. This will cause the charger to work in a high temperature state for a long time when working outdoors in summer. The heat dissipation equipment in the existing charger, with its limited heat dissipation capacity, may not be able to meet the heat dissipation requirements of the charger working in a normal environment, let alone meet the heat dissipation requirements when there is a continuous and high-temperature external heat source to increase the temperature of the charger.

[0005] When using the charger outdoors, heat dissipation is not the only factor that needs to be considered, because the charger itself needs to have heat dissipation holes for heat dissipation. When using the charger outdoors, you should also pay attention to rainy and snowy weather, because the charging position cannot be controlled. If the charging position is in a low-lying area, the charger placed directly on the ground is easily submerged by rain. Even if it is not submerged by rain, if the rainfall is heavy, it will cause rainwater to enter the charger through the heat dissipation holes, which can easily cause the circuit board to short-circuit due to moisture. Summary of the invention

[0006] The purpose of this application is to solve or at least alleviate the problems existing in the prior art.

[0007] To solve the above shortcomings, the present invention provides the following technical solutions: a new energy electric vehicle charger with rapid heat dissipation of a circuit board and a heat dissipation method, comprising a charger body, an auxiliary component is arranged below the charger body, a shielding component is arranged at the top of the charger body, and the shielding component is in a storage and folding state;

[0008] The auxiliary component includes a carrying box and a temperature control box. The carrying box is fixed to the bottom end of the charger body. A heat conductor is fixedly connected to the interior of the temperature control box. The upper half of the heat conductor is in a plate shape and contacts the circuit board in the charger body.

[0009] The shielding assembly includes a storage box, a nylon spring curtain and a driving rod. The storage box is fixed to the top of the charger body. The nylon spring curtain is folded and stored inside the storage box. The nylon spring curtain unfolds to block sunlight after the charger body heats up. The driving rod controls and limits the position state of the nylon spring curtain.

[0010] Furthermore, the heat conductor passes through the carrier box and the charger body and extends to the interior of the charger body, and the bottom end of the heat conductor extends in a columnar shape to the bottom of the temperature control box.

[0011] Furthermore, both sides of the heat conductor are fixed and connected with a sleeve, and an electric self-resetting telescopic rod is arranged inside the sleeve, and the electric self-resetting telescopic rod is in sealing contact with the inner wall of the sleeve, and the end of the electric self-resetting telescopic rod away from the temperature control box extends to the outside of the sleeve, and the end of the electric self-resetting telescopic rod away from the temperature control box is fixedly connected with a gear rod, and gears are arranged on the front and back sides of the gear rod, and the gear rod and the gear are meshed with each other, and the central axis of the gear is rotatably connected to the carrier box, and a push rod is fixedly connected to the central axis of the gear.

[0012] The temperature control box is provided with a temperature sensing control switch inside, which is electrically connected to the electric self-resetting telescopic rod and is used to control the opening and closing of the electric self-resetting telescopic rod.

[0013] Furthermore, two air cylinders are fixed to the inner walls of the front and back sides of the carrier box, the positions of the air cylinders correspond to the gear rod, the interior of the air cylinders is slidably connected with a piston plate, the piston plate is in sealing contact with the inner wall of the air cylinder, and the piston plate extends to the outside of the air cylinder toward one end of the gear rod and is fixed with a resistance block.

[0014] Furthermore, the bottom end of the air cylinder is fixed and connected with a telescopic tube, the bottom end of the telescopic tube is fixedly connected with a bottom plate, both sides of the bottom plate are hinged with limiting rods, the bottom end of the limiting rod is hinged with a slider, and the slider is slidably connected to the air cylinder.

[0015] Furthermore, the nylon spring curtains are all fixedly connected to the driving rod on the same side, and the middle of the driving rod on the same side is fixedly connected with a spring rod.

[0016] Furthermore, slide grooves are provided on both the left and right sides of the charger body, and two shift blocks are slidably connected inside the slide grooves. The shift blocks are located in the middle of two driving rods on the same side. The shielding assembly also includes transmission rods, and the transmission rods are provided in two groups, each group of transmission rods has two transmission rods, and the transmission rods are respectively fixed to the surfaces of four push rods, and the transmission rods are hinged to the shift blocks on the same side.

[0017] The heat dissipation method of the new energy electric vehicle charger with rapid heat dissipation of the circuit board is as follows:

[0018] Step 1: Control the heat dissipation device. Set two rated heat dissipation temperatures for the circuit board in the charger. When the charger temperature is low, the heat of the circuit board is dissipated through the built-in heat dissipation fins. When the rated temperature is reached, the heat dissipation fan is started. The heat dissipation fan increases the air flow rate around the circuit board and the heat dissipation fins, thereby increasing the heat dissipation speed.

[0019] Step 2: According to step 1, when the temperature of the charger reaches the second-level rated temperature, the built-in liquid cooling mechanism is started. The liquid cooling dissipates heat through the high specific heat capacity of the liquid, quickly absorbing the heat on the circuit board and the heat dissipation fins, and the heat dissipation fan assists in cooling the liquid in the liquid cooling mechanism;

[0020] Step 3: Check regularly. When the charger is in normal use, regularly check whether the temperature of the charger is within the safe temperature range. If the temperature is abnormal, it should be repaired or replaced in time.

[0021] Step 4: Choose a working environment. When using the charger, ensure that the air around it can circulate normally. When using it outdoors, use auxiliary tools to prevent the charger from absorbing external heat.

[0022] Furthermore, according to the auxiliary tool described in step 4, the charger is separated from the sunlight by a shielding curtain, and the charger is isolated from direct sunlight and absorbs the heat of the sunlight, thereby reducing the heating rate of the charger.

[0023] Furthermore, according to the auxiliary tool described in step 4, when used outdoors, the auxiliary tool supports the charger and separates the charger from the ground, so that the heat from the ground cannot be absorbed by the charger.

[0024] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0025] 1. By setting up auxiliary components, this device uses the heat sources generated by the outside and the circuit board to drive the auxiliary components to separate the charger body from the ground, isolating part of the external heat source from being transmitted to the charger body. The traditional charger will continue to absorb the high heat of the ground when working, thereby accelerating the rise of its own temperature, causing the circuit board to work at high temperature load, which is very likely to reduce the life or be directly damaged. When used outdoors in summer, the high temperature of the asphalt or concrete ground increases the temperature of the charger body when working, so that the charger body will not be affected by the external heat source and cause the temperature to rise rapidly, so that the circuit board inside the charger body continues to work at high temperature, reducing the source of heat absorbed by the charger body from the outside, so that the heat dissipation mechanism equipped in the charger body can stably and continuously dissipate the heat in the charger body, avoiding too many heat sources in the charger body, resulting in the heat dissipation mechanism in the charger body being unable to meet the heat dissipation requirements of the charger body circuit board. Compared with the use of traditional chargers, this device allows the heat dissipation mechanism to only dissipate the temperature generated by the circuit board, ensuring that the temperature of the charger body can stably and continuously decrease or cannot continue to rise, so that it can work stably at a suitable temperature state;

[0026] 2. The auxiliary component separates the charger body from the ground, so that when the device is used outdoors, even in rainy weather, the charger body will not be flooded due to ground water accumulation, which increases the protection of the charger body and prevents the accumulation of water from entering the charger body and causing a short circuit in the charger body. When the traditional charger is used outdoors, rainwater will enter from the heat dissipation holes or directly immerse the charger in rainy and snowy weather, directly causing damage to the charger. In severe cases, it may cause short circuit damage to the charging pile or battery. In contrast, after the device lifts the charger body, it can ensure that the charger body can perform charging operations normally, and also avoid damage to the charging pile or the battery of the electric vehicle caused by a short circuit, so that the device can be used outdoors normally in rainy and snowy weather, and also improves the adaptability of the device to various use environments;

[0027] 3 Compared with traditional chargers, this device automatically lifts the charger body according to the degree of temperature rise during use, separates it from the ground, and better isolates external heat sources, so that the heat dissipation components in the charger body only need to dissipate the heat of the main board, assisting the charger body to quickly dissipate heat and maintain it in a safe temperature range. When using traditional chargers, they will absorb external high heat from sunlight, asphalt ground, etc., and will also be affected by rain immersion. This device can perfectly solve the above problems through auxiliary components, thereby ensuring the normal and efficient operation of the charger body, so that this device can be better used in various outdoor environments, improving the practicality of the charger body itself;

[0028] 4. By setting a shielding component, the shielding component and the auxiliary component cooperate with each other, and the charger body is shielded by the nylon spring curtain after it is unfolded. When the existing charger is in use, it will be directly exposed to the scorching sun in summer. The continuous direct sunlight will not only cause the charger body to heat up quickly, but this device will prevent the charger body from being exposed to direct sunlight. When the device is used outdoors in summer, the heat of the sunlight is isolated by the nylon spring curtain, which can effectively ensure that the charger body will not be heated by absorbing the heat of the sunlight, and the source of heat absorbed by the charger body from the outside is reduced again. In addition, the long-term exposure of the charger body shell to sunlight is reduced. Reduce its aging speed, at the same time, reduce the air in the middle area of ​​​​the nylon spring curtain and the charger body, and form an insulation layer, further limit the external heat transferred to the charger body, at the same time, it can reduce the heat of the air around the charger body, accelerate the heat exchange between the heat in the charger body and the surrounding air, and accelerate the heat dissipation effect of the charger body. At the same time, the nylon spring curtain can also isolate rainwater in rainy weather, so that the charger body will not come into contact with rainwater. The shielding component and the auxiliary component cooperate with each other to ensure that the charger body will not be submerged in accumulated water or come into contact with falling rainwater when it rains outdoors, and can work normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a front view three-dimensional structural diagram of the present invention;

[0030] Figure 2 It is a bottom-up stereoscopic structural diagram of the present invention;

[0031] Figure 3 It is a planar structural diagram of the auxiliary components in the present invention;

[0032] Figure 4 It is a three-dimensional structural diagram of the auxiliary components in the present invention;

[0033] Figure 5 It is a cross-sectional three-dimensional structural diagram of the temperature control box in the present invention;

[0034] Figure 6 It is a partial three-dimensional structural diagram of the auxiliary component of the present invention;

[0035] Figure 7 It is a partial cross-sectional three-dimensional structural diagram of the air cylinder and the bottom plate of the present invention;

[0036] Figure 8 is a three-dimensional structural diagram of the shielding component in the present invention;

[0037] Fig. 9 It is a partial three-dimensional structural diagram of the shielding component in the present invention;

[0038] Fig.10It is a structural diagram of the expanded state of the shielding component in the present invention.

[0039] The numbers in the figure represent:

[0040] 101. Charger body;

[0041] 200, auxiliary components; 201, carrying box; 202, temperature control box; 203, heat conductor; 204, sleeve; 205, electric self-resetting telescopic rod; 206, gear rod; 207, gear; 208, push rod; 209, air cylinder; 210, piston plate; 211, resistance block; 212, telescopic tube; 213, bottom plate; 214, slider; 215, limit rod;

[0042] 300, shielding assembly; 301, storage box; 302, nylon spring curtain; 303, driving rod; 304, spring rod; 305, slide groove; 306, shift block; 307, transmission rod. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] The present invention will be further described below in conjunction with the embodiments.

[0045] A new energy electric vehicle charger and a heat dissipation method for a circuit board with rapid heat dissipation in this embodiment, such as Figure 1-Figure 10 As shown, it includes a charger body 101, an auxiliary component 200 is arranged below the charger body 101, and a shielding component 300 is arranged on the top of the charger body 101, and the shielding component 300 is in a storage and folding state;

[0046] The auxiliary component 200 includes a carrying box 201 and a temperature control box 202. The carrying box 201 is fixed to the bottom of the charger body 101, and the temperature control box 202 is fixed inside the charger body 101. A heat conductor 203 is fixedly connected inside the temperature control box 202. The upper half of the heat conductor 203 is in a plate shape and contacts the circuit board in the charger body 101. The temperature control box 202 is a sealed space.

[0047] As a preferred implementation in this embodiment, Figure 1-Figure 10As shown, the auxiliary component 200 also includes a temperature control box 202, which is fixed inside the charger body 101. A heat conductor 203 is fixedly connected inside the temperature control box 202. The heat conductor 203 passes through the carrier box 201 and the charger body 101 and extends to the inside of the charger body 101. The bottom end of the heat conductor 203 extends to the bottom of the temperature control box 202 in a columnar shape. It should be noted that the heat conductor 203 is made of pure copper, which has extremely high thermal conductivity. At 20°C, the thermal conductivity of copper is 397W / (m·K). The surface of the heat conductor 203 located inside the charger body 101 is in contact with the circuit board inside the charger body 101.

[0048] Both sides of the heat conductor 203 are fixed and connected with a sleeve 204, and an electric self-resetting telescopic rod 205 is arranged inside the sleeve 204. The electric self-resetting telescopic rod 205 is in sealing contact with the inner wall of the sleeve 204, and the end of the electric self-resetting telescopic rod 205 away from the temperature control box 202 extends to the outside of the sleeve 204, and the end of the electric self-resetting telescopic rod 205 away from the temperature control box 202 is fixedly connected with a gear rod 206, and the front and rear sides of the gear rod 206 are both provided with a gear 207, and the gear rod 206 and the gear 207 are meshed with each other, and the central axis of the gear 207 is rotatably connected to the carrier box 201, and a push rod 208 is fixedly connected to the central axis of the gear 207;

[0049] A temperature control switch is provided inside the temperature control box 202, and the temperature control switch is electrically connected to the electric self-resetting telescopic rod 205, and is used to control the opening and closing of the electric self-resetting telescopic rod 205;

[0050] As a preferred implementation in this embodiment, Figure 1-Figure 10 As shown, two gas cylinders 209 are fixed to the inner walls of the front and rear sides of the carrier box 201. The position of the gas cylinder 209 corresponds to the gear rod 206. The inside of the gas cylinder 209 is slidably connected with a piston plate 210. The piston plate 210 is in sealing contact with the inner wall of the gas cylinder 209. One end of the piston plate 210 toward the gear rod 206 extends to the outside of the gas cylinder 209 and is fixed with a resistance block 211.

[0051] The bottom end of the air cylinder 209 is fixed and connected with a telescopic tube 212, the bottom end of the telescopic tube 212 is fixedly connected with a bottom plate 213, both sides of the bottom plate 213 are hinged with limiting rods 215, the bottom end of the limiting rod 215 is hinged with a slider 214, the slider 214 is slidably connected to the air cylinder 209, it should be noted that the abutment block 211 is a right-angled trapezoid, and the inclined surface of the abutment block 211 faces the push rod 208 on the same side.

[0052] Comparing existing authorized patents, equipment with the same technology, and similar technology equipment of the same type, the following results are achieved:

[0053] When used outdoors, the heat of the asphalt or concrete floor will not be transferred to the charger body 101, so that the high temperature of the asphalt or concrete floor in summer will not increase the working temperature of the charger body 101, so that the charger body 101 will not be affected by the external heat source and cause the temperature to rise rapidly, so that the circuit board inside the charger body 101 will continue to operate at high temperature;

[0054] It can not only ensure that the charger body 101 can perform charging operations normally, but also avoid short circuits that cause damage to the battery of the charging pile or the electric vehicle, so that the device can be used outdoors normally in rainy and snowy weather, and also improve the adaptability of the device to various usage environments.

[0055] In other aspects, this embodiment also provides a new energy electric vehicle charger and a heat dissipation method for a circuit board to quickly dissipate heat, such as Figure 1-Figure 10 As shown, the shielding assembly 300 includes a storage box 301, a nylon spring curtain 302 and a driving rod 303. The storage box 301 is fixed to the top of the charger body 101. The nylon spring curtain 302 is folded and stored inside the storage box 301. The nylon spring curtain 302 is unfolded to block direct sunlight after the charger body 101 is heated up. A group of driving rods 303 are respectively arranged on both sides of the charger body 101, and each group has two. The driving rods 303 are rotatably connected to the charger body 101. The driving rods 303 on the same side are in an inverted "eight" state. The driving rods 303 control and limit the position state of the nylon spring curtain 302.

[0056] As a preferred implementation in this embodiment, Figure 1-Figure 10 As shown, both sides of the charger body 101 are provided with a slide groove 305, and the interior of the slide groove 305 is slidably connected to two shift blocks 306, and the shift blocks 306 are located in the middle of the two driving rods 303 on the same side. The shielding assembly 300 also includes a transmission rod 307, and the transmission rod 307 is provided with two groups, each group of transmission rods 307 has two transmission rods, and the transmission rods 307 are respectively fixed to the surfaces of the four push rods 208, and the transmission rods 307 are hinged to the shift blocks 306 on the same side.

[0057] Comparing existing authorized patents, equipment with the same technology, and similar technology equipment of the same type, the following results are achieved:

[0058] Compared with traditional chargers, the charger body 101 is shielded by unfolding the nylon spring curtain 302, so that the charger body 101 is no longer exposed to direct sunlight. When the device is used outdoors in summer, the heat from the sunlight will not directly act on the charger body 101, which further reduces the source of heat absorbed by the charger body 101 from the outside. At the same time, the air in the middle area between the nylon spring curtain 302 and the charger body 101 is reduced to form an insulation layer, further limiting the external heat transfer to the charger body 101. At the same time, the heat of the air around the charger body 101 can be reduced, accelerating the heat exchange between the charger body 101 and the surrounding air.

[0059] In other aspects, this embodiment also provides a heat dissipation method for a new energy electric vehicle charger with rapid heat dissipation of a circuit board, and the steps are as follows:

[0060] Step 1: Control the heat dissipation device. Set two rated heat dissipation temperatures for the circuit board in the charger. When the charger temperature is low, the heat of the circuit board is dissipated through the built-in heat dissipation fins. When the rated temperature is reached, the heat dissipation fan is started. The heat dissipation fan increases the air flow rate around the circuit board and the heat dissipation fins, thereby increasing the heat dissipation speed.

[0061] Step 2: According to step 1, when the temperature of the charger reaches the second-level rated temperature, the built-in liquid cooling mechanism is started. The liquid cooling dissipates heat through the high specific heat capacity of the liquid, quickly absorbing the heat on the circuit board and the heat dissipation fins, and the heat dissipation fan assists in cooling the liquid in the liquid cooling mechanism;

[0062] Step 3: Check regularly. When the charger is in normal use, regularly check whether the temperature of the charger is within the safe temperature range. If the temperature is abnormal, it should be repaired or replaced in time.

[0063] Step 4: Choose a working environment. When using the charger, ensure that the air around the charger can circulate normally. When using it outdoors, use auxiliary tools to prevent the charger from absorbing external heat.

[0064] According to the auxiliary tool in step 4, use the shade curtain to isolate the charger from the sunlight, so that the charger can absorb the sunlight heat and reduce the heating rate of the charger;

[0065] According to the auxiliary tools in step 4, when used outdoors, the auxiliary tools support the charger and separate the charger from the ground, so that the heat from the ground cannot be absorbed by the charger.

[0066] The above complete working principle and working process are as follows:

[0067] Please refer to Figure 1-Figure 10 , the following is the specific working process of the auxiliary component 200;

[0068] When the user uses the device to charge the vehicle, the user places the device on the ground after the connection is completed, so that the carrying box 201 faces the ground and carries the charger body 101. As the charger body 101 continues to work, the heat of the internal circuit board continues to rise. It is known that the heat conductor 203 is made of pure copper, which has extremely high thermal conductivity. At 20°C, the thermal conductivity of copper is 397W / (m·K). The surface of the heat conductor 203 located inside the charger body 101 is in contact with the circuit board inside the charger body 101, and the heat generated by the circuit board is absorbed by the heat conductor 203. As the heat conductor 203 continues to heat up, the temperature control switch inside the temperature control box 202 is turned on, driving the electric automatic control box 202 electrically connected to it. The reset telescopic rod 205 starts to extend, and the electric self-reset telescopic rod 205 moves in the direction away from the temperature control box 202. The electric self-reset telescopic rod 205 drives the gear rod 206 to move at the same time, and the gear rod 206 meshes with the gear 207. When the gear rod 206 moves, it drives the gear 207 to rotate, and the gear 207 drives the push rod 208 to rotate. When the push rod 208 rotates, it approaches the resistance block 211 until the push rod 208 contacts the resistance block 211. It is known that the side of the resistance block 211 facing the push rod 208 is an inclined surface. Through the push rod 208 contacting the inclined surface of the resistance block 211, the resistance block 211 is forced to drive the piston plate 210 to squeeze the air inside the air cylinder 209, so that the air inside the air cylinder 209 enters the telescopic tube 212. At the same time, because One end of the telescopic tube 212 connected to the bottom plate 213 is blocked by the bottom plate 213. Because the space in the air cylinder 209 and the telescopic tube 212 is reduced, and the air volume remains unchanged, the air pressure inside the air cylinder 209 and the telescopic tube 212 increases, causing the telescopic tube 212 to stretch under the action of the air pressure. When the telescopic tube 212 stretches downward, it drives the bottom plate 213 to move downward at the same time, causing the bottom plate 213 to contact the ground. When the bottom plate 213 moves, it drives the limiting rod 215 and the slider 214 to move. The slider 214 is slidably connected to the air cylinder 209. The moving direction of the telescopic tube 212 and the bottom plate 213 is limited by the slider 214 and the limiting rod 215, so that the bottom plate 213 remains perpendicular to the downward moving direction of the carrier box 201. As the bottom plate 213 continues to move downward, , thereby propping up the carrying box 201 and the charger body 101 through the bottom plate 213, so that the carrying box 201 and the charger body 101 are no longer in contact with the ground. At the same time, because the circuit board continues to work, the heat conductor 203 can continuously absorb heat and transfer the heat to the temperature control switch inside the temperature control box 202, thereby ensuring that the telescopic tube 212 and the bottom plate 213 can continuously maintain the state of the carrying box 201 and the charger body 101. When the charger body 101 finishes working, the temperature inside the charger body 101 gradually decreases. At the same time, the temperature control switch inside the temperature control box 202 stops working, and the electric self-resetting telescopic rod 205 moves in the opposite direction, so that the above movement process moves in the opposite direction until it is restored to the initial state for the next use;

[0069] The effect that can be obtained according to the above movement process is: by setting the auxiliary component 200, the auxiliary component 200 can separate the charger body 101 from the ground when it is used. When used outdoors, the heat of the asphalt or concrete ground can be prevented from being transferred to the charger body 101, so as to avoid the high temperature of the asphalt or concrete ground increasing the working temperature of the charger body 101 in summer, so that the charger body 101 will not be affected by the external heat source and cause the temperature to rise rapidly, so that the circuit board inside the charger body 101 continues to work at a high temperature, reducing the source of heat absorbed by the charger body 101 from the outside, so that the heat dissipation mechanism equipped in the charger body 101 can stably and continuously dissipate the heat in the charger body 101, avoiding too many heat sources in the charger body 101, resulting in the heat dissipation mechanism in the charger body 101 being unable to meet the heat dissipation requirements of the circuit board of the charger body 101;

[0070] The auxiliary component 200 separates the charger body 101 from the ground, so that when the device is used outdoors, even in rainy weather, water will not enter the charger body 101 due to water accumulation on the ground, thereby increasing the protection of the charger body 101 and preventing the accumulation of water from entering the charger body 101 and causing a short circuit in the charger body 101. This ensures that the charger body 101 can perform charging operations normally, and prevents the battery of the charging pile or the electric vehicle from being damaged due to a short circuit, so that the device can be used outdoors normally in rainy and snowy weather, and also improves the adaptability of the device to various use environments;

[0071] Please refer to Figure 1-Figure 10 , the following is the specific working process of the shielding component 300;

[0072] When the push rod 208 rotates with the gear 207, the push rod 208 drives the transmission rod 307 fixed thereon to rotate at the same time. It is known that the transmission rod 307 is hinged with the shift block 306, and the shift block 306 is slidably connected with the slide groove 305. At the same time, the shift block 306 is located in the middle of the two driving rods 303. When the transmission rod 307 rotates with the push rod 208, the transmission rod 307 drives the shift block 306 to slide horizontally in the slide groove 305, and the rotation directions of the two shift blocks 306 on the same side are away from each other. When the shift block 306 moves, the shift block 306 conflicts with the driving rod 303. It is known that the driving rod 303 is rotationally connected with the carrier box 201. Driven by the shift block 306, the driving rod 303 rotates with the connection point with the carrier box 201 as the axis. The driving rod 303 drives the nylon spring curtain 302 connected thereon to be pulled and deformed to unfold. 302 blocks the charger body 101, and the driving rod 303 pulls the spring rod 304 during the rotation, so that the spring rod 304 is deformed. According to the movement process of the auxiliary component 200, the push rod 208 drives the transmission rod 307 to always drive the shift block 306 to resist the driving rod 303, so that the driving rod 303 drives the nylon spring curtain 302 to keep covering the charger body 101. When the auxiliary component 200 is restored to the initial state, the push rod 208 drives the transmission rod 307 and the shift block 306 to move in the opposite direction until they are restored to the initial state. At this time, the shift block 306 no longer resists the driving rod 303, and the spring rod 304 is deformed. The resilience force drives the driving rod 303 to rotate in the opposite direction to restore the initial state. At this time, the nylon spring curtain 302 is no longer pulled by the driving rod 303, and the nylon spring curtain 302 rebounds and shrinks, and enters the storage box 301 again;

[0073] The effect obtained according to the above movement process is: by setting the shielding component 300, the shielding component 300 cooperates with the auxiliary component 200, and the nylon spring curtain 302 is unfolded to shield the charger body 101, so that the charger body 101 is no longer exposed to direct sunlight, so that when the device is used outdoors in summer, the heat of the sunlight will not directly act on the charger body 101, and the source of heat absorbed by the charger body 101 from the outside is reduced again. At the same time, the air in the middle area between the nylon spring curtain 302 and the charger body 101 is reduced, and a heat insulation layer is formed, further The invention further limits the external heat transfer to the charger body 101. At the same time, it can reduce the heat of the air around the charger body 101, accelerate the heat exchange between the heat in the charger body 101 and the surrounding air, and accelerate the heat dissipation effect of the charger body 101. At the same time, the nylon spring curtain 302 can also isolate the rainwater in rainy weather, so that the charger body 101 will not come into contact with the rainwater. The shielding component 300 and the auxiliary component 200 cooperate with each other to ensure that the charger body 101 will not be submerged by accumulated water or come into contact with falling rainwater when it is rainy outdoors, and can work normally.

[0074] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A new energy electric vehicle charger with rapid heat dissipation of circuit boards, characterized in that: It comprises a charger body (101), an auxiliary component (200) is arranged below the charger body (101), a shielding component (300) is arranged at the top of the charger body (101), and the shielding component (300) is in a stored and folded state; The auxiliary component (200) comprises a carrying box (201) and a temperature control box (202); the carrying box (201) is fixed to the bottom end of the charger body (101); a heat conductor (203) is fixedly connected to the interior of the temperature control box (202); the upper half of the heat conductor (203) is in a plate shape and contacts the circuit board in the charger body (101); The shielding assembly (300) comprises a storage box (301), a nylon spring curtain (302) and a driving rod (303); the storage box (301) is fixed to the top of the charger body (101); the nylon spring curtain (302) is folded and stored inside the storage box (301); the nylon spring curtain (302) unfolds to block sunlight after the charger body (101) is heated; and the driving rod (303) controls and limits the position state of the nylon spring curtain (302).

2. A new energy electric vehicle charger with rapid heat dissipation of circuit boards according to claim 1, characterized in that: The heat conductor (203) passes through the carrier box (201) and the charger body (101) and extends to the interior of the charger body (101); the bottom end of the heat conductor (203) extends in a columnar shape to the bottom of the temperature control box (202); the temperature control box (202) is fixed inside the carrier box (201); and the temperature control box (202) is a sealed space.

3. A new energy electric vehicle charger with rapid heat dissipation of circuit boards according to claim 2, characterized in that: Both sides of the heat conductor (203) are fixed and connected with a sleeve (204), and an electric self-resetting telescopic rod (205) is arranged inside the sleeve (204), and the electric self-resetting telescopic rod (205) is in sealing contact with the inner wall of the sleeve (204), and the end of the electric self-resetting telescopic rod (205) away from the temperature control box (202) extends to the outside of the sleeve (204), and the end of the electric self-resetting telescopic rod (205) away from the temperature control box (202) is fixedly connected with a gear rod (206), and the front and rear surfaces of the gear rod (206) are provided with a gear (207), and the gear rod (206) and the gear (207) are meshed with each other, and the central axis of the gear (207) is rotatably connected to the carrier box (201), and a push rod (208) is fixedly connected to the central axis of the gear (207); The temperature control box (202) is provided with a temperature sensing control switch inside. The temperature sensing control switch is electrically connected to the electric self-resetting telescopic rod (205) and is used to control the opening and closing of the electric self-resetting telescopic rod (205).

4. A new energy electric vehicle charger with rapid heat dissipation of circuit boards according to claim 1, characterized in that: Two gas cylinders (209) are fixed to the inner walls of the front and back sides of the carrier box (201). The position of the gas cylinder (209) corresponds to the gear rod (206). The inside of the gas cylinder (209) is slidably connected with a piston plate (210). The piston plate (210) is in sealing contact with the inner wall of the gas cylinder (209). One end of the piston plate (210) toward the gear rod (206) extends to the outside of the gas cylinder (209) and is fixed with a resistance block (211).

5. A new energy electric vehicle charger with rapid heat dissipation of circuit boards according to claim 4, characterized in that: The bottom end of the air cylinder (209) is fixed and connected to a telescopic tube (212), the bottom end of the telescopic tube (212) is fixedly connected to a bottom plate (213), both sides of the bottom plate (213) are hinged with limiting rods (215), the bottom end of the limiting rod (215) is hinged with a slider (214), and the slider (214) is slidably connected to the air cylinder (209).

6. A new energy electric vehicle charger with rapid heat dissipation of circuit boards according to claim 1, characterized in that: The nylon spring curtains (302) are all fixedly connected to the driving rod (303) on the same side, and the driving rod (303) is rotatably connected to the charger body (101). A group of driving rods (303) are respectively arranged on both sides of the charger body (101), and each group has two. The middle of the driving rods (303) on the same side is fixedly connected with a spring rod (304).

7. A new energy electric vehicle charger with rapid heat dissipation of circuit boards according to claim 1, characterized in that: The left and right sides of the charger body (101) are both provided with a slide groove (305), and the interior of the slide groove (305) is slidably connected to two shifting blocks (306), and the shifting blocks (306) are both located in the middle of the two driving rods (303) on the same side. The shielding component (300) also includes a transmission rod (307), and the transmission rod (307) is provided with two groups, each group of the transmission rods (307) is two, and the transmission rods (307) are respectively fixed to the surfaces of four push rods (208), and the transmission rods (307) are all hinged to the shifting blocks (306) on the same side.

8. A heat dissipation method for a new energy electric vehicle charger with rapid heat dissipation of a circuit board, according to a new energy electric vehicle charger with rapid heat dissipation of a circuit board according to any one of claims 1-7, characterized in that: Here are the steps: Step 1: Control the heat dissipation device. Set two rated heat dissipation temperatures for the circuit board in the charger. When the charger temperature is low, the heat of the circuit board is dissipated through the built-in heat dissipation fins. When the rated temperature is reached, the heat dissipation fan is started. The heat dissipation fan increases the air flow rate around the circuit board and the heat dissipation fins, thereby increasing the heat dissipation speed. Step 2: According to step 1, when the temperature of the charger reaches the second-level rated temperature, the built-in liquid cooling mechanism is started. The liquid cooling dissipates heat through the high specific heat capacity of the liquid, quickly absorbing the heat on the circuit board and the heat dissipation fins, and the heat dissipation fan assists in cooling the liquid in the liquid cooling mechanism; Step 3: Check regularly. When the charger is in normal use, regularly check whether the temperature of the charger is within the safe temperature range. If the temperature is abnormal, it should be repaired or replaced in time. Step 4: Choose a working environment. When using the charger, ensure that the air around it can circulate normally. When using it outdoors, use auxiliary tools to prevent the charger from absorbing external heat.

9. The heat dissipation method for a new energy electric vehicle charger with rapid heat dissipation of a circuit board according to claim 8, characterized in that: According to the auxiliary tools described in step 4, the charger is separated from the sunlight by a shade curtain, and the charger is isolated from direct sunlight and absorbs the heat of the sunlight, thereby reducing the heating rate of the charger.

10. The heat dissipation method for a new energy electric vehicle charger with rapid heat dissipation of a circuit board according to claim 8, characterized in that: According to the auxiliary tools described in step 4, when used outdoors, the auxiliary tools support the charger and separate the charger from the ground, so that the heat from the ground cannot be absorbed by the charger.

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