High-voltage box for battery system of electric vehicle

Abstract

The invention discloses a high-voltage box for a battery system of an electric vehicle. The high-voltage box comprises a high-voltage box shell, a heat dissipation mechanism, a uniform stirring heat conduction mechanism and a trigger mechanism, a plurality of connecting wire heads are arranged on the high-voltage box shell, and a heat conducting assembly is mounted in the high-voltage box shell; the heat dissipation mechanism comprises a heat dissipation protection frame plate, a trigger cavity is formed in the heat dissipation protection frame plate, a supporting blocking block is arranged in the trigger cavity, a water-blocking breathable film is fixed to the supporting blocking block, and a plurality of evenly-distributed drainage grooves are formed in the supporting blocking block; the stirring heat conduction mechanism comprises a plurality of branch conveying air pipes, a plurality of rotary air conveying frames are installed on the branch conveying air pipes, and a plurality of evenly-distributed rotary injection pipes are fixed to the rotary air conveying frames. Through arrangement of corresponding mechanisms, the high-voltage box of the electric automobile has a good heat dissipation function, so that heat accumulated in the high-voltage box can be dissipated and cannot be accumulated in the high-voltage box, the service life of the high-voltage box is prolonged, and the maintenance cost of the high-voltage box is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of high - voltage boxes for electric vehicle batteries, and particularly relates to a high - voltage box for an electric vehicle battery system. Background Art

[0002] As a power and signal transmission bridge between the power battery and various high - voltage devices of an electric vehicle, the high - voltage box of the electric vehicle distributes the high - voltage direct current of the power battery to high - voltage components such as motor controllers, frequency converters, inverter power supplies, electric air conditioners, and electric defrosters to ensure that each component can obtain stable power supply. At present, the high - voltage boxes of electric vehicles all use sheet - metal boxes, and there is generally no heat - dissipation system or the heat - dissipation effect is poor in the box. The heat accumulated in the high - voltage box is likely to damage related electronic components, thereby reducing the service life of the high - voltage box. At the same time, the subsequent maintenance cost will also increase accordingly, bringing unnecessary economic losses to users.

[0003] The information disclosed in this background - art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0004] The purpose of the present invention is to provide a high - voltage box for an electric vehicle battery system, which can solve the problem that the high - voltage box of an electric vehicle in the prior art is not convenient for heat dissipation or has a poor heat - dissipation effect.

[0005] To achieve the above - mentioned purpose, the technical solution provided by a specific embodiment of the present invention is as follows:

[0006] A high - voltage box for an electric vehicle battery system includes: a high - voltage box housing, a heat - dissipation mechanism, a heat - mixing and heat - conducting mechanism, and a triggering mechanism;

[0007] A plurality of connection terminals are arranged on the high - voltage box housing, and a heat - conducting component is installed inside the high - voltage box housing;

[0008] The heat - dissipation mechanism is installed on the outer wall of the high - voltage box housing. The heat - dissipation mechanism includes a heat - dissipation protection frame plate. A triggering cavity is formed in the heat - dissipation protection frame plate. A support plug is arranged in the triggering cavity. A water - blocking and breathable membrane is fixed on the support plug. A plurality of uniformly distributed drainage grooves are formed in the support plug. A plurality of drainage holes are formed in the side wall of the triggering cavity;

[0009] The stirring and heat-conducting mechanism is installed between the heat-dissipating protection frame plate and the high-voltage box housing. The stirring and heat-conducting mechanism includes a plurality of branch conveying air pipes, and a plurality of the branch conveying air pipes are inserted into the heat-dissipating protection frame plate. A plurality of rotating air conveying frames are installed on the branch conveying air pipes, and a plurality of evenly distributed rotating spray pipes are fixed on the rotating air conveying frames. A plurality of communication holes are drilled in the branch conveying air pipes;

[0010] The triggering mechanism is installed in the triggering cavity. The triggering mechanism is used to release the fixation of the supporting plug block, so that the water flow can push the supporting plug block and the water-blocking and breathable membrane upward, thereby facilitating the replacement of the heat-exchanging water.

[0011] In one or more embodiments of the present invention, the heat-conducting component includes a heat-conducting wall plate, which is used to conduct the heat in the high-voltage box housing to the heat-exchanging water in the heat-dissipating protection frame plate to achieve heat conduction. The heat-conducting wall plate is fixed on the inner wall of the high-voltage box housing, so that the heat-conducting wall plate will not move, thus not affecting the operation of the equipment in the high-voltage box housing;

[0012] A plurality of evenly distributed heat-conducting tooth plates are fixed on the heat-conducting wall plate. One ends of the plurality of heat-conducting tooth plates are inserted into the heat-dissipating protection frame plate for conducting heat and improving the heat transfer efficiency.

[0013] In one or more embodiments of the present invention, a plurality of through holes are drilled at one ends of the plurality of heat-conducting tooth plates located in the heat-dissipating protection frame plate for the flow of gas and heat-exchanging water, facilitating the discharge of gas and heat-exchanging water from above.

[0014] In one or more embodiments of the present invention, an upper plugging column is arranged above the supporting plug block, which is used to push the supporting plug block to move, so that the supporting plug block can be reset and the heat-exchanging water cannot leak. An exhaust cavity is drilled in the upper plugging column to provide space for the discharge of gas. A plurality of evenly distributed exhaust holes are drilled on the side wall of the exhaust cavity to facilitate the outward discharge of gas;

[0015] A plurality of connecting columns are fixedly connected between the upper plugging column and the supporting plug block, which are used to fixedly connect the supporting plug block and the upper plugging column, so that the upper plugging column can drive the supporting plug block to move. A pair of guiding inclined plates are installed on the supporting plug block for guiding gas and facilitating the discharge of gas.

[0016] In one or more embodiments of the present invention, a plurality of clamping grooves and drainage grooves are formed in the supporting plug block. The clamping grooves are used for the clamping blocks to be clamped in, so as to fix the supporting plug block, prevent the supporting plug block from moving up and down, and further prevent the exchanged hot water from leaking out. The drainage grooves are used for discharging the exchanged hot water. When the supporting plug block rises, the exchanged hot water can enter the trigger cavity through the drainage grooves and then be discharged out through the drainage holes.

[0017] A top cover is fixedly connected to the top of the upper sealing column to support the movement of the supporting spring and prevent the supporting spring from falling off. A plurality of supporting springs are fixedly connected between the top cover and the heat dissipation protection frame plate to pull the top cover. Thus, the upper sealing column and the supporting plug block can be pushed through the top cover, so that the supporting plug block seals the exchanged hot water to prevent the leakage of the exchanged hot water, but the gas can be discharged upward through the water-blocking and air-permeable membrane on the supporting plug block.

[0018] In one or more embodiments of the present invention, a water collecting frame is fixed outside the heat dissipation protection frame plate to collect the discharged exchanged hot water, which is convenient to be discharged outward through a pair of drain pipes. A pair of drain pipes are fixedly connected to the water collecting frame to discharge the discharged exchanged hot water, which is convenient for the staff to collect and process and reduces the collection pressure. A pair of conveying water pipes are fixedly connected to the bottom of the heat dissipation protection frame plate to convey the exchanged hot water into the heat dissipation protection frame plate, so as to discharge the exchanged hot water with increased temperature in the heat dissipation protection frame plate, realize the replacement of the cold and hot exchanged water, facilitate the continuous absorption of the heat in the high-pressure box shell, and further prevent the temperature in the high-pressure box shell from being too high.

[0019] In one or more embodiments of the present invention, side pipes are fixedly connected to both ends of the branch conveying air pipe. A supporting bearing is fixedly connected between the branch conveying air pipe and the side pipe, so that the rotation of the rotary air conveying frame is not affected by the branch conveying air pipe. Furthermore, the rotary injection pipe can easily drive the rotary air conveying frame to rotate, so that a plurality of rotary injection pipes rotate simultaneously, achieving the effect of stirring the exchanged hot water, making the exchanged hot water evenly heated, and improving the heat exchange efficiency.

[0020] In one or more embodiments of the present invention, a main conveying air pipe is arranged on one side of the heat dissipation protection frame plate. The main conveying air pipe is communicated with one ends of a plurality of branch conveying air pipes located outside the heat dissipation protection frame plate to convey gas into the plurality of branch conveying air pipes, so that gas can be ejected outward from the plurality of rotary injection pipes, achieving the effects of heat conduction and stirring.

[0021] In one or more embodiments of the present invention, the triggering mechanism includes a pair of sliding trigger blocks, which are used to drive the connecting bent rod and the limit clamping block to move, and after the sliding trigger blocks move a certain distance, a signal will be triggered, so that a pair of water delivery pipes deliver replacement hot water into the heat dissipation protection frame plate, enabling the replacement of the cold and hot replacement water. A support guide rod is slidably connected to the pair of sliding trigger blocks, which is used to support the sliding trigger blocks, making it difficult for the sliding trigger blocks to fall off and preventing the sliding trigger blocks from skewing during movement. One end of the support guide rod is fixed to the heat dissipation protection frame plate;

[0022] A pair of grooves are formed in the sliding trigger blocks to facilitate the installation of a pair of fixing springs. The fixing springs are arranged in the grooves, and both ends of the fixing springs are fixedly connected to the heat dissipation protection frame plate and the sliding trigger blocks respectively. Through the pushing of the fixing springs, when the sliding trigger blocks are no longer pushed by the shape memory alloy push rods, they can be reset by the pushing of the fixing springs, thereby driving the movement of the connecting bent rod and the limit clamping block, enabling the limit clamping block to be stuck in the card slot again.

[0023] In one or more embodiments of the present invention, a connecting bent rod is fixedly connected to the sliding trigger block, and the other end of the connecting bent rod is connected with a limit clamping block matching the card slot. By clamping the limit clamping block in the card slot, the support plug block cannot move, thereby preventing the replacement hot water from leaking easily;

[0024] A fixed support plate is fixed on one side of each of the pair of sliding trigger blocks, which is used to support a plurality of shape memory alloy push rods, making it difficult for the shape memory alloy push rods to fall off. A plurality of shape memory alloy push rods are fixed on the fixed support plate. When the temperature of the shape memory alloy push rods rises, they can elongate, thereby being able to push the sliding trigger blocks to slide, playing a role in adjusting the position of the limit clamping block. After the temperature of the shape memory alloy push rods drops, they will return to their original state, facilitating the reset of the sliding trigger blocks.

[0025] Compared with the prior art, through the setting of the corresponding mechanism in the present invention, the high-voltage box of the electric vehicle has a good heat dissipation function, so that the heat accumulated in the high-voltage box can start to dissipate, and will not accumulate in the high-voltage box, reducing the probability of damage to electronic components, thereby improving the service life of the high-voltage box and reducing the maintenance cost of the high-voltage box. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 A perspective view of a high-voltage box for an electric vehicle battery system in an embodiment of the present invention;

[0028] Figure 2 For Figure 1 The structural schematic diagram shown at position A in;

[0029] Figure 3 A partial sectional view of a high-voltage box for an electric vehicle battery system in an embodiment of the present invention;

[0030] Figure 4 For Figure 3 The structural schematic diagram shown at position B in;

[0031] Figure 5 For Figure 3 The structural schematic diagram shown at position C in;

[0032] Figure 6 For Figure 3 The structural schematic diagram shown at position D in;

[0033] Figure 7 A partial structural schematic diagram of a high-voltage box for an electric vehicle battery system in an embodiment of the present invention;

[0034] Figure 8 For Figure 7 The structural schematic diagram shown at position E in;

[0035] Figure 9 A structural schematic diagram of a support plug in an embodiment of the present invention;

[0036] Figure 10 For Figure 9 The structural schematic diagram shown at position F in;

[0037] Figure 11 A structural schematic diagram of a rotary injection pipe in an embodiment of the present invention.

[0038] Main reference numeral description:

[0039] 1 - High - voltage box housing, 101 - Connecting wire head, 102 - Heat - conducting component, 103 - Heat - conducting wall plate, 104 - Heat - conducting tooth plate, 105 - Penetrating hole, 2 - Heat - dissipation mechanism, 201 - Heat - dissipation protection frame plate, 202 - Trigger cavity, 203 - Support plug, 204 - Water - blocking and breathable membrane, 205 - Upper plugging column, 206 - Exhaust cavity, 207 - Exhaust hole, 208 - Connecting pillar, 209 - Guide inclined plate, 210 - Card slot, 211 - Drainage groove, 212 - Top cover, 213 - Support spring, 214 - Water - collecting frame, 215 - Drain pipe, 216 - Delivery water pipe, 217 - Drainage hole, 3 - Stir - and - even heat - conducting mechanism, 301 - Branch delivery gas pipe, 302 - Rotating gas - delivery frame, 303 - Rotating spray pipe, 304 - Communication hole, 305 - Side pipe, 306 - Support bearing, 307 - Main delivery gas pipe, 4 - Trigger mechanism, 401 - Sliding trigger block, 402 - Support guide rod, 403 - Fixed spring, 404 - Connecting bent rod, 405 - Limit block, 406 - Fixed support plate, 407 - Shape - memory alloy push rod. Detailed implementation mode

[0040] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] As Figures 1 - 11 shown, a high - voltage box for an electric - vehicle battery system in an embodiment of the present invention includes: a high - voltage box housing 1, a heat - dissipation mechanism 2, a stir - and - even heat - conducting mechanism 3, and a trigger mechanism 4.

[0042] As Figures 1 - 3 shown, a plurality of connecting wire heads 101 are arranged on the high - voltage box housing 1 for wire connection. A heat - conducting component 102 is installed inside the high - voltage box housing 1 to conduct the heat inside the high - voltage box housing 1 to the inside of the heat - dissipation protection frame plate 201. The heat - conducting component 102 includes a heat - conducting wall plate 103 for conducting the heat inside the high - voltage box housing 1 to the heat - exchanging water inside the heat - dissipation protection frame plate 201 to achieve heat conduction. The heat - conducting wall plate 103 is fixed to the inner wall of the high - voltage box housing 1 so that the heat - conducting wall plate 103 will not move, thus not affecting the operation of the equipment inside the high - voltage box housing 1.

[0043] As Figures 1 - 3As shown, a plurality of uniformly distributed heat-conducting tooth plates 104 are fixed on the heat-conducting wall plate 103. One end of each of the plurality of heat-conducting tooth plates 104 is inserted into the heat dissipation protection frame plate 201 for conducting heat and improving the heat transfer efficiency. A plurality of through holes 105 are drilled at one end of each of the plurality of heat-conducting tooth plates 104 arranged in the heat dissipation protection frame plate 201 for the flow of gas and heat exchange water, facilitating the discharge of gas and heat exchange water from above.

[0044] As Figures 1 - 5 shown, the heat dissipation mechanism 2 is installed on the outer wall of the high-voltage box housing 1. The heat dissipation mechanism 2 includes a heat dissipation protection frame plate 201 for protecting the heat exchange water from spilling, thereby facilitating the heat exchange treatment of the high-voltage box housing 1 and preventing the temperature inside the high-voltage box housing 1 from being too high. A trigger cavity 202 is drilled in the heat dissipation protection frame plate 201 to provide space for the lifting and moving of the support plug 203. A support plug 203 is arranged in the trigger cavity 202 for fixing the water-blocking and breathable membrane 204 and driving the water-blocking and breathable membrane 204 to move.

[0045] Specifically, a water-blocking and breathable membrane 204 is fixed on the support plug 203. The water-blocking and breathable membrane 204, also known as a waterproof and breathable membrane, is made of a polymer waterproof material and has a large number of uniformly distributed micropores. The pore diameters of these micropores are between the diameters of water vapor molecules and water droplets. The diameter of water vapor molecules is extremely small and can smoothly penetrate through the micropores to the other side, thus realizing the breathable function; while water droplets cannot pass through because their diameters are much larger than the pore diameters of the micropores and are blocked outside, achieving the water-blocking effect. A plurality of uniformly distributed drainage grooves 211 are drilled on the support plug 203 for discharging the heat exchange water.

[0046] In addition, a plurality of drainage holes 217 are drilled on the side wall of the trigger cavity 202 for the discharged heat exchange water to flow into the water collection frame 214, facilitating the centralized discharge of the heat exchange water.

[0047] As Figures 1 - 5 shown, an upper plugging column 205 is arranged above the support plug 203 for pushing the support plug 203 to move, so that the support plug 203 can be reset and the heat exchange water cannot leak. An exhaust cavity 206 is drilled in the upper plugging column 205 to provide space for the discharge of gas. A plurality of uniformly distributed exhaust holes 207 are drilled on the side wall of the exhaust cavity 206 to facilitate the outward discharge of gas.

[0048] As Figures 1 - 9 shown, a plurality of connecting columns 208 are fixedly connected between the upper plugging column 205 and the support plug 203 for fixedly connecting the support plug 203 and the upper plugging column 205, so that the upper plugging column 205 can drive the support plug 203 to move. A pair of guiding inclined plates 209 are installed on the support plug 203 for guiding the gas and facilitating the discharge of gas.

[0049] AsFigures 1 - 10 As shown, the support block 203 is provided with a plurality of slots 210 and drainage slots 211. The slots 210 are used to limit the insertion of the position-limiting block 405. Thus, the support block 203 is fixed, so that the support block 203 cannot move up and down, and the hot water will not leak out. The drainage slots 211 are used to discharge the hot water. When the support block 203 is raised, the hot water can enter the trigger cavity 202 through the drainage slots 211, and then be discharged outward through the drainage holes 217.

[0050] like Figures 1 - 4 As shown, a top cover 212 is fixedly connected to the top of the upper blocking column 205 for supporting the movement of the supporting spring 213 to prevent the supporting spring 213 from falling off; a plurality of supporting springs 213 are fixedly connected between the top cover 212 and the heat dissipation protection frame plate 201 for pulling the top cover 212, thereby pushing the upper blocking column 205 and the supporting block 203 through the top cover 212, so that the supporting block 203 blocks the hot water for exchange, and prevents leakage of the hot water for exchange, but the gas can be discharged upward through the water-blocking and breathable membrane 204 on the supporting block 203.

[0051] like Figures 1 - 5 As shown, a water collecting frame 214 is fixed outside the heat dissipation protection frame plate 201, which is used to collect the discharged hot water for convenient discharge through a pair of drain pipes 215. A pair of drain pipes 215 are fixedly connected to the water collecting frame 214, which are used to discharge the discharged hot water for convenient collection and treatment by the staff, thereby reducing the collection pressure. A pair of water delivery pipes 216 are fixedly connected to the bottom of the heat dissipation protection frame plate 201, which are used to deliver hot water to the heat dissipation protection frame plate 201, so as to discharge the hot water with increased temperature in the heat dissipation protection frame plate 201, realize the replacement of hot and cold hot water, facilitate the continuous absorption of heat in the high-pressure box shell 1, and thus prevent the temperature in the high-pressure box shell 1 from being too high.

[0052] like Figures 1 - 11 As shown, the heat-stirring and evenly conducting mechanism 3 is installed between the heat dissipation protection frame plate 201 and the high-pressure box shell 1, and the heat-stirring and evenly conducting mechanism 3 includes a plurality of branch air delivery pipes 301 for conveying gas, and the plurality of branch air delivery pipes 301 are inserted in the heat dissipation protection frame plate 201, and a plurality of rotating air delivery frames 302 are installed on the branch air delivery pipes 301, and a plurality of evenly distributed rotating injection pipes 303 are fixed on the rotating air delivery frames 302 for blowing out the gas, and then the reverse thrust is used to make the plurality of rotating injection pipes 303 rotate, thereby achieving a stirring effect.

[0053] Among them, a plurality of connecting holes 304 are drilled on the branch gas delivery pipe 301 for conveniently discharging the gas into the rotating gas delivery frame 302 , so that the gas can enter the rotating injection pipe 303 and be injected out.

[0054] likeFigures 1 - 11 As shown in the figure, both ends of the branch air delivery pipe 301 are fixedly connected with side pipes 305, and a support bearing 306 is fixedly connected between the branch air delivery pipe 301 and the side pipes 305, so that the rotation of the rotary air delivery frame 302 will not be affected by the branch air delivery pipe 301. Furthermore, it is convenient for the rotary spray pipe 303 to drive the rotary air delivery frame 302 to rotate, enabling multiple rotary spray pipes 303 to rotate simultaneously, achieving the effect of agitating the heat exchange water, making the heat exchange water evenly heated, and improving the heat exchange efficiency.

[0055] In addition, a main air delivery pipe 307 is arranged on one side of the heat dissipation protection frame plate 201. The main air delivery pipe 307 is communicated with one ends of a plurality of branch air delivery pipes 301 outside the heat dissipation protection frame plate 201, and is used for delivering gas into the plurality of branch air delivery pipes 301, so that gas can be ejected outward from a plurality of rotary spray pipes 303, achieving the effects of heat conduction and agitation.

[0056] As Figures 1 - 8 shown, the trigger mechanism 4 is installed in the trigger cavity 202. The trigger mechanism 4 is used to release the fixation of the support plug 203, facilitating the water flow to push the support plug 203 and the water-blocking and air-permeable membrane 204 upward, and further facilitating the replacement of the heat exchange water. The trigger mechanism 4 includes a pair of sliding trigger blocks 401, which are used to drive the connecting bent rod 404 and the limit block 405 to move, and a signal will be triggered after the sliding trigger blocks 401 move a certain distance. Furthermore, a pair of water delivery pipes 216 will deliver heat exchange water into the heat dissipation protection frame plate 201, realizing the replacement of the hot and cold heat exchange water. A support guide rod 402 is slidably connected to the pair of sliding trigger blocks 401, which is used to support the sliding trigger blocks 401, making it difficult for the sliding trigger blocks 401 to fall off, and ensuring that the sliding trigger blocks 401 do not skew during movement. One end of the support guide rod 402 is fixed to the heat dissipation protection frame plate 201.

[0057] As Figures 1 - 8 shown, a pair of grooves are formed in the sliding trigger block 401 to facilitate the installation of a pair of fixing springs 403. The fixing springs 403 are arranged in the grooves, and both ends of the fixing springs 403 are fixedly connected to the heat dissipation protection frame plate 201 and the sliding trigger block 401 respectively. Through the pushing of the fixing springs 403, when the sliding trigger block 401 is no longer pushed by the shape memory alloy push rod 407, it can be reset by the pushing of the fixing springs 403, and then drive the movement of the connecting bent rod 404 and the limit block 405, so that the limit block 405 can be stuck in the card slot 210 again.

[0058] Specifically, a connecting bent rod 404 is fixedly connected to the sliding trigger block 401, and the other end of the connecting bent rod 404 is connected with a limit block 405 matching the card slot 210. By the limit block 405 being stuck in the card slot 210, the support plug 203 cannot move, and thus the heat exchange water is not likely to leak.

[0059] As Figures 1 - 8 shown, on one side of a pair of sliding trigger blocks 401, fixed support plates 406 are fixed, which are used to support a plurality of shape memory alloy push rods 407, so that the shape memory alloy push rods 407 are not easily detached. A plurality of shape memory alloy push rods 407 are fixed on the fixed support plates 406. When the temperature of the shape memory alloy push rods 407 rises, they can elongate, and then can push the sliding trigger blocks 401 to slide, so as to adjust the position of the limit latch 405. After the temperature of the shape memory alloy push rods 407 drops, they will return to their original state, which is convenient for the reset of the sliding trigger blocks 401.

[0060] During specific use, a large amount of heat will be generated inside the high-pressure box housing 1 during its use, and this heat will be conducted to the heat exchange water in the heat dissipation protection frame plate 201 through the heat conduction wall plate 103 and the heat conduction tooth plate 104, so that the temperature of the heat exchange water gradually rises. The main delivery air pipe 307 will deliver gas to a plurality of branch delivery air pipes 301, and the gas will enter the rotary air delivery frame 302 through the communication holes 304, and then be dispersed and ejected from a plurality of rotary jet pipes 303. Thus, the effect of stirring the heat exchange water in the heat dissipation protection frame plate 201 is achieved, and the temperature of the heat exchange water can be made uniform;

[0061] Then the gas will float upward, then float upward through the water-blocking and breathable membrane 204, and finally be discharged outward through the exhaust cavity 206 and the exhaust holes 207. When the gas passes through the water-blocking and breathable membrane 204, it will come into contact with a plurality of shape memory alloy push rods 407. When the temperature of the heat exchange water rises, it will also cause the temperature of the floating gas to rise, and then the temperature of a plurality of shape memory alloy push rods 407 can be increased. Then the shape memory alloy push rods 407 will gradually elongate, thereby pushing the sliding trigger blocks 401 to move. After the sliding trigger blocks 401 move a certain distance, a signal is triggered, so that a pair of water delivery pipes 216 deliver cooler heat exchange water into the heat dissipation protection frame plate 201. And the sliding trigger blocks 401 will also drive the connecting bent rods 404 and the limit latches 405 to move, so that the limit latches 405 no longer latch in the card slots 210, which is convenient for the lifting and moving of the support plug 203;

[0062] The heat exchange water delivered by the water delivery pipes 216 will gradually push the support plug 203 to move upward. At this time, the heat exchange water can enter the trigger cavity 202 through the drainage groove 211, and then enter the water collection frame 214 through the drainage holes 217, realizing the discharge of the hotter heat exchange water. A pair of water delivery pipes 216 can deliver a certain amount of heat exchange water into the heat dissipation protection frame plate 201, realizing the complete replacement of the heat exchange water in the heat dissipation protection frame plate 201. After the replacement is completed, the support spring 213 will pull the top cover 212 and the upper plug column 205 to move downward, thereby resetting the support plug 203;

[0063] At this time, since the heat exchange water cup at a higher temperature is discharged, the temperatures of the plurality of shape memory alloy push rods 407 also decrease. As a result, the shape memory alloy push rods 407 recover and no longer push the sliding trigger block 401. Then, through the fixing spring 403, the sliding trigger block 401 also resets, thereby driving the connecting bent rod 404 and the limit clamping block 405 to move, so that the limit clamping block 405 can be stuck in the clamping groove 210 again, achieving the effect of fixing and supporting the blocking block 203. The newly replaced heat exchange water can continuously absorb heat again, so that the temperature inside the high-pressure box housing 1 will not be too high, reducing the probability of device damage.

[0064] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed invention.

[0065] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high voltage box for an electric vehicle battery system, characterized in that: include: A high-voltage box shell, on which a plurality of connecting wire ends are arranged, and a heat-conducting component is installed in the high-voltage box shell; A heat dissipation mechanism is installed on the outer wall of the high-voltage box shell, the heat dissipation mechanism includes a heat dissipation protection frame plate, a trigger cavity is excavated in the heat dissipation protection frame plate, a support block is arranged in the trigger cavity, a water-blocking and breathable membrane is fixed on the support block, a plurality of evenly distributed drainage grooves are excavated on the support block, and a plurality of drainage holes are excavated on the side wall of the trigger cavity; A heat-mixing and evenly conducting mechanism is installed between the heat dissipation protection frame plate and the high-pressure box shell, and the heat-mixing and evenly conducting mechanism includes a plurality of branch air delivery pipes, and the plurality of branch air delivery pipes are inserted into the heat dissipation protection frame plate, and a plurality of rotating air delivery frames are installed on the branch air delivery pipes, and a plurality of evenly distributed rotating injection pipes are fixed on the rotating air delivery frames, and a plurality of connecting holes are drilled on the branch air delivery pipes; A trigger mechanism is installed in the trigger cavity, and the trigger mechanism is used to release the fixation of the support block, so that the water flow can push the support block and the water-blocking breathable membrane upward, thereby facilitating the replacement of the hot water.

2. A high-voltage box for an electric vehicle battery system according to claim 1, characterized in that: The heat-conducting component includes a heat-conducting wall plate, which is fixed on the inner wall of the high-voltage box shell. A plurality of evenly distributed heat-conducting tooth plates are fixed on the heat-conducting wall plate, and one end of each of the plurality of heat-conducting tooth plates is inserted into the heat dissipation protection frame plate.

3. A high-voltage box for an electric vehicle battery system according to claim 2, characterized in that: A plurality of heat-conducting tooth plates are arranged at one end of the heat-dissipating protection frame plate and are each provided with a plurality of through holes.

4. The high-voltage box for an electric vehicle battery system according to claim 1, characterized in that: An upper blocking column is arranged above the supporting block, an exhaust cavity is bored in the upper blocking column, a plurality of evenly distributed exhaust holes are bored on the side wall of the exhaust cavity, a plurality of connecting pillars are fixedly connected between the upper blocking column and the supporting block, and a pair of guiding inclined plates are installed on the supporting block.

5. A high-voltage box for an electric vehicle battery system according to claim 4, characterized in that: A plurality of slots and drainage slots are cut on the support block, a top cover is fixedly connected to the top of the upper blocking column, and a plurality of support springs are fixedly connected between the top cover and the heat dissipation protection frame plate.

6. The high-voltage box for an electric vehicle battery system according to claim 1, characterized in that: A water collecting frame is fixed outside the heat dissipation protection frame plate, a pair of drainage pipes are fixedly connected to the water collecting frame, and a pair of water delivery pipes are fixedly connected to the bottom of the heat dissipation protection frame plate.

7. The high-voltage box for an electric vehicle battery system according to claim 1, characterized in that: Both ends of the branch air delivery pipe are fixedly connected with side pipes, and a support bearing is fixedly connected between the branch air delivery pipe and the side pipe.

8. The high-voltage box for an electric vehicle battery system according to claim 1, characterized in that: A main air delivery pipe is arranged on one side of the heat dissipation protection frame plate, and the main air delivery pipe is communicated with one end of a plurality of branch air delivery pipes arranged outside the heat dissipation protection frame plate.

9. The high-voltage box for an electric vehicle battery system according to claim 5, characterized in that: The trigger mechanism includes a pair of sliding trigger blocks, a pair of sliding trigger blocks are slidably connected with support guide rods, one end of the support guide rod is fixed to the heat dissipation protection frame plate, a pair of grooves are chiseled on the sliding trigger block, and a fixing spring is arranged in the groove, and the two ends of the fixing spring are respectively fixedly connected to the heat dissipation protection frame plate and the sliding trigger block.

10. A high voltage box for an electric vehicle battery system according to claim 9, characterized in that: A connecting bent rod is fixedly connected to the sliding trigger block, and the other end of the connecting bent rod is connected to a limit block matching the slot. A fixed support plate is fixed to one side of a pair of sliding trigger blocks, and a plurality of shape memory alloy push rods are fixed to the fixed support plate.

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