A new energy vehicle battery tray supporting heat dissipation and heat preservation

Abstract

The application discloses a new energy vehicle battery tray supporting heat dissipation and heat preservation, which comprises a tray and batteries, wherein the inside of the tray is provided with a cooling structure and a temperature insulation structure; the cooling structure comprises a water-cooled heat conduction plate, which is arranged in the tray and below the batteries; the inside of the water-cooled heat conduction plate is provided with a flow guide pipe; one side of the water-cooled heat conduction plate is provided with a liquid inlet pipe and a liquid outlet pipe, which are communicated with the flow guide pipe; the temperature insulation structure comprises heat insulation pads, which are attached to the inner side walls and the bottom surface of the tray; the water-cooled heat conduction plate and the batteries are arranged in the heat insulation pads; a plurality of temperature guide plates are slidably arranged in the tray; a plurality of batteries are arranged between adjacent temperature guide plates; and a positioning adjusting mechanism is connected to the temperature guide plates, so as to adjust the spacing between the adjacent temperature guide plates. The battery tray can improve the heat conduction area of the batteries, so that the heat conduction is more uniform and faster; and the temperature insulation structure can reduce the heat loss in a low-temperature environment.

Description

Technical Field

[0001] This invention relates to the field of new energy battery technology, specifically to a new energy vehicle battery tray that supports heat dissipation and insulation. Background Technology

[0002] The battery tray is a load-bearing structure for batteries in new energy vehicles. As the skeleton of the battery system, the battery tray bears the weight of the battery pack and is used to ensure battery safety and performance.

[0003] Chinese Patent Publication No. CN219017762U discloses a liquid-cooled battery tray, comprising: a tray with a mounting groove, the bottom surface of which has a liquid-cooling groove with an inlet and an outlet; a heat-conducting plate located in the mounting groove, forming a liquid-cooling channel with the liquid-cooling groove, the heat-conducting plate being used to adhere to a battery module; an inlet connector and an outlet connector, both inserted into the same end of the heat-conducting plate and connected to the inlet and outlet ends respectively; wherein, the thermal conductivity of the tray is lower than that of the heat-conducting plate. The liquid-cooling channel adopts a combination structure of tray and heat-conducting plate, with the thermal conductivity of the tray being lower than that of the heat-conducting plate, reducing the absorption of heat from the external environment by the cooling medium in the coolant channel, thus reducing heat loss. The battery module is mounted on the heat-conducting plate, and heat is transferred to the cooling medium in the liquid-cooling channel through the heat-conducting plate to achieve effective heat dissipation for the battery module.

[0004] The aforementioned prior art mentions mounting the new energy vehicle battery above a heat-conducting plate to dissipate heat and cool the battery. However, the heat-conducting plate only contacts the bottom of the battery for heat transfer, resulting in limited contact area and heat dissipation effect. The temperature of the top or side of the battery may be significantly higher than that of the bottom, affecting the overall temperature uniformity. Moreover, this device has poor heat preservation effect on the battery, and its use in low-temperature environments will increase the battery's internal resistance, leading to a decrease in the battery's operating voltage and discharge power. Therefore, a new energy vehicle battery tray that supports heat dissipation and heat preservation is needed to meet people's needs. Summary of the Invention

[0005] The purpose of this invention is to provide a new energy vehicle battery tray that supports heat dissipation and heat preservation, so as to solve the problem that the existing trays have limited heat dissipation effect, resulting in insufficient overall temperature uniformity and poor heat preservation effect for the battery.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0007] A battery tray for new energy vehicles that supports heat dissipation and insulation includes a tray, in which several batteries are installed. The tray's interior is equipped with a cooling structure and a heat insulation structure.

[0008] The cooling structure includes a water-cooled heat-conducting plate, which is placed in a tray and located below the battery. The water-cooled heat-conducting plate has a flow guide tube inside, and an inlet pipe and an outlet pipe connected to the flow guide tube are installed on one side of the water-cooled heat-conducting plate.

[0009] The thermal insulation structure includes a thermal insulation pad that is attached to the inner wall and bottom surface of the tray, and the water-cooled heat-conducting plate and the battery are both located inside the thermal insulation pad.

[0010] The tray also has several temperature-conducting plates slidably installed inside, and multiple batteries are arranged between adjacent temperature-conducting plates. The temperature-conducting plates are connected to a positioning adjustment mechanism to adjust the distance between two adjacent temperature-conducting plates.

[0011] In one specific implementation, the positioning and adjustment mechanism includes a connecting frame assembly, an adjusting sleeve, and a fixing screw. The connecting frame assemblies correspond one-to-one with the temperature guide plates in terms of quantity and position. Each connecting frame assembly includes two connecting frames symmetrically arranged on both sides of the corresponding temperature guide plate in the width direction. There are two fixing screws, which are respectively fixedly installed on both sides of the connecting frame in the length direction. Through holes are opened at both ends of the connecting frame, and the connecting frame is sleeved on the fixing screw through the through holes. The adjusting sleeves correspond one-to-one with the connecting frame assemblies in terms of quantity and position. An adjusting sleeve is provided between the two connecting frames in each connecting frame assembly, and the adjusting sleeve is threadedly connected to the fixing screw.

[0012] In one specific implementation, each connecting frame includes two connecting plates at both ends, a positioning screw connecting the two connecting plates, and a plurality of limiting nut groups sleeved on and threadedly connected to the positioning screw. The limiting nut groups on the two connecting frames on both sides of the same temperature guide plate are symmetrically arranged. The positioning adjustment mechanism also includes a positioning plate group. The positioning plate group corresponds one-to-one with the temperature guide plate in terms of quantity and position. Each positioning plate group includes a plurality of positioning plates that are movably and interlocked on the temperature guide plate along the length direction of the temperature guide plate. Each positioning plate corresponds to a pair of symmetrically arranged limiting nut groups on both sides of the temperature guide plate. Each limiting nut group includes two limiting nuts. The two limiting nuts symmetrically press against the two sides of the corresponding positioning plate along the length direction of the positioning screw.

[0013] In one specific implementation, two parallel guide strips are installed on the inner wall of the tray, and a guide hole is provided on the temperature guiding plate to cooperate with the guide strips. The temperature guiding plate is slidably arranged along the length direction of the guide strips through the guide hole.

[0014] In one specific implementation, a temperature-conducting pipe is provided inside the temperature-conducting plate, and the temperature-conducting pipe is connected to the flow-conducting pipe on the water-cooled heat-conducting plate through a flow-conducting structure.

[0015] In one specific implementation, the flow guiding structure includes a connecting pipe, a branch pipe, a transfer pipe, and a corrugated pipe. The connecting pipe is disposed outside the temperature guiding plate and connected to the temperature guiding pipe. The branch pipe is connected to the flow guiding pipe on the water-cooled heat-conducting plate. The branch pipe and the corrugated pipe, and the corrugated pipe and the connecting pipe are respectively connected by a transfer pipe.

[0016] In one specific implementation, a fixing component is provided between the diverter pipe and the adapter pipe, and between the connecting pipe and the adapter pipe. The fixing component includes an umbrella-shaped collar and a sealing ring. The sealing ring contacts the inner wall of the adapter pipe, and the umbrella-shaped collar presses against the outer side of the sealing ring. The fixing component also includes several pressing screws. The multiple pressing screws are evenly spaced along the circumference of the adapter pipe. Each pressing screw passes through the side wall of the adapter pipe along its own axial direction and presses against the side wall of the corresponding diverter pipe or connecting pipe, while contacting the inclined surface of the umbrella-shaped collar.

[0017] In one specific implementation, the corrugated pipe is further provided with a reinforcing structure for fixing it. The reinforcing structure includes a reinforcing sleeve, a connecting rod, a supporting sleeve, and a mounting base. The reinforcing sleeve is fixedly sleeved on the radial outer side of the corrugated pipe. There are two connecting rods, which are symmetrically installed on both sides of the reinforcing sleeve. The length extension direction of the connecting rod is parallel to the axis of the corrugated pipe. A supporting sleeve is slidably sleeved on the upper and lower sides of each connecting rod. The end of the supporting sleeve away from the connecting rod is mounted on the outer surface of the corresponding adapter pipe through the mounting base.

[0018] In one specific implementation, the tray also includes a heating rod inserted into the flow guide tube.

[0019] In one specific implementation, the temperature-conducting tube consists of a main tube I and multiple branch tubes I with a feather-like network structure; the flow-guiding tube consists of a main tube II and multiple branch tubes II with an arc-shaped parallel vein structure.

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] 1) The battery tray of the present invention enables the heat generated by the new energy vehicle battery during use to be transferred to the water-cooled heat conduction plate and the temperature conduction plate. The heat is exchanged with the medium in the guide tube in the water-cooled heat conduction plate and the temperature conduction tube in the temperature conduction plate, which helps to cool down the battery. The cooperation between the water-cooled heat conduction plate and the temperature conduction plate can increase the contact area and heat conduction area with the battery, making the heat conduction more uniform and further improving the cooling effect of the new energy vehicle battery.

[0022] 2) When used in a low-temperature environment, the heating rod can be turned on to heat the medium flowing through the guide tube, so that its temperature is transferred to the battery through the water-cooled heat conduction plate and the temperature conduction plate to heat the battery. With the heat insulation pad, heat loss can be reduced so as to meet the battery's usage requirements in a low-temperature environment.

[0023] 3) Place the battery between the two corresponding temperature-conducting plates. Adjust the position of the temperature-conducting plates in the tray by rotating the adjusting screw sleeve, change the spacing between adjacent temperature-conducting plates and make them close to the sides of the battery. At the same time, rotate the corresponding limit nut to adjust the position of the positioning plate, so that the positioning plate is close to the side of the battery. With the cooperation of the temperature-conducting plates and the positioning plate, the battery can be positioned and installed. It can also be used for batteries of various sizes.

[0024] 4) Before adjusting the position of the temperature guide plate, you can first rotate the pressure screw to release the connection restriction between the adapter pipe and the distribution pipe or connecting pipe. At this time, when the temperature guide plate moves, it will drive the connecting pipe to move. During the process, the adapter pipe will rotate on the corresponding distribution pipe or connecting pipe and stretch the telescopic pipe, so that the length of the telescopic pipe can be adapted to the moving distance of the temperature guide plate. At the same time, it will not affect the normal delivery of water or coolant, and ensure the normal use of the temperature guide plate's temperature conduction function.

[0025] 5) The use of a heat-conducting tube with a feather-like mesh structure and a flow-conducting tube with an arc-shaped parallel pulse structure results in high heat exchange efficiency and uniform temperature distribution, avoiding local overheating and extending the battery's service life. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a three-dimensional structural diagram of a new energy vehicle battery tray that supports heat dissipation and heat preservation, as described in this invention.

[0028] Figure 2 This is a cross-sectional structural diagram of a new energy vehicle battery tray that supports heat dissipation and heat preservation, as described in this invention.

[0029] Figure 3 This is a schematic diagram of the structure of a water-cooled heat-conducting plate and a temperature-conducting plate in a new energy vehicle battery tray that supports heat dissipation and insulation, as proposed in this invention.

[0030] Figure 4 This is a schematic diagram of the structure of a water-cooled heat-conducting plate in a new energy vehicle battery tray that supports heat dissipation and heat preservation, as proposed in this invention.

[0031] Figure 5 This is a cross-sectional schematic diagram of the water-cooled heat-conducting plate in a new energy vehicle battery tray that supports heat dissipation and heat preservation, as proposed in this invention.

[0032] Figure 6 This is a schematic diagram of the thermal conductive plate in a new energy vehicle battery tray that supports heat dissipation and insulation, as proposed in this invention.

[0033] Figure 7 This is a cross-sectional schematic diagram of the temperature-conducting plate in a new energy vehicle battery tray that supports heat dissipation and heat preservation, as proposed in this invention.

[0034] Figure 8 This is a schematic diagram of the flow guiding structure in a new energy vehicle battery tray that supports heat dissipation and heat preservation, as proposed in this invention.

[0035] Figure 9 This is a cross-sectional schematic diagram of the flow guiding structure in a new energy vehicle battery tray that supports heat dissipation and heat preservation, as proposed in this invention.

[0036] The components are as follows: 100, tray; 101, battery; 200, water-cooled heat-conducting plate; 201, guide tube; 202, inlet tube; 203, outlet tube; 204, heat insulation pad; 205, heating rod; 300, temperature-conducting plate; 301, connecting plate; 302, adjusting screw sleeve; 303, fixing screw; 304, guide strip; 305, guide hole; 306, positioning screw; 307, positioning plate; 308, limit nut; 400, diverter tube; 401, connecting tube; 402, adapter tube; 403, corrugated tube; 404, umbrella-shaped collar; 405, sealing ring; 406, pressing screw; 407, reinforcing sleeve; 408, connecting rod; 409, support sleeve rod; 410, mounting base; 411, temperature-conducting tube. Detailed Implementation

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0038] See Figures 1 to 9 As shown, the present invention discloses a new energy vehicle battery tray that supports heat dissipation and heat preservation. It includes a tray 100, in which a plurality of batteries 101 are installed. The tray 100 has a cooling structure and a heat insulation structure installed inside. A plurality of heat-conducting plates 300 are also slidably installed inside the tray 100. Multiple batteries 101 are arranged between adjacent heat-conducting plates 300. A positioning adjustment mechanism is connected to the heat-conducting plate 300 to adjust the distance between two adjacent heat-conducting plates 300.

[0039] Specifically, the cooling structure includes a water-cooled heat-conducting plate 200, which is placed inside the tray 100 and located below the battery 101. The water-cooled heat-conducting plate 200 has a flow guide pipe 201 inside. An inlet pipe 202 and an outlet pipe 203 connected to the flow guide pipe 201 are installed on one side of the water-cooled heat-conducting plate 200. A heating rod 205 is inserted into the flow guide pipe 201.

[0040] Here, the cooling structure uses a guide pipe 201 installed inside the water-cooled heat-conducting plate 200, so that in a high-temperature environment, the cooling medium is transported to the guide pipe 201 through the liquid inlet pipe 202. In this example, the cooling medium used is water, so that the heat generated by the battery 101 during use is transferred to the water-cooled heat-conducting plate 200 that is in contact with its bottom surface. Through heat exchange with the cooling water in the guide pipe 201, auxiliary heat dissipation of the battery 101 is achieved. In order to improve the heat transfer effect, thermal grease can be applied between the water-cooled heat-conducting plate 200 and the battery 101.

[0041] When in a low-temperature environment, the liquid flowing through the guide pipe 201 can be heated by turning on the heating rod 205, and its temperature is transferred to the battery 101 through the water-cooled heat conduction plate 200 to heat the battery 101.

[0042] In this example, the thermal insulation structure includes a thermal insulation pad 204 attached to the inner wall and bottom surface of the tray 100. The water-cooled heat-conducting plate 200 and the battery 101 are both located inside the thermal insulation pad 204. In this example, the thermal insulation pad 204 can be made of polyurethane foam or ceramicized silicone rubber thermal insulation material, which can achieve a thermal insulation effect and reduce heat loss.

[0043] In this example, the positioning and adjustment mechanism includes a connecting frame assembly, an adjusting sleeve 302, and a fixing screw 303. The connecting frame assemblies correspond one-to-one with the temperature guide plates 300 in terms of quantity and position. Each connecting frame assembly includes two connecting frames, symmetrically arranged on both sides of the width direction of the corresponding temperature guide plate 300. There are two fixing screws 303, which are fixedly installed on both sides of the length direction of the connecting frame. Through holes are opened at both ends of the connecting frame, and the connecting frame is sleeved on the fixing screw 303 through the through holes. The adjusting sleeves 302 correspond one-to-one with the connecting frame assemblies in terms of quantity and position. An adjusting sleeve 302 is provided between the two connecting frames in each connecting frame assembly, and the adjusting sleeve 302 is threadedly connected to the fixing screw 303.

[0044] Each connecting frame includes two connecting plates 301 at both ends, a positioning screw 306 connected between the two connecting plates 301, and several limiting nuts 308 sleeved on and threadedly connected to the positioning screw 306. The limiting nuts 308 on the two connecting frames on both sides of the same temperature guide plate 300 are symmetrically arranged. The positioning adjustment mechanism also includes a set of positioning plates 307. The set of positioning plates 307 corresponds one-to-one with the temperature guide plate 300 in terms of quantity and position. Each set of positioning plates 307 includes multiple positioning plates 307 that are movably and interlocked on the temperature guide plate 300 along the length direction of the temperature guide plate 300. Each positioning plate 307 corresponds to a pair of symmetrically arranged limiting nuts 308 on both sides of the temperature guide plate 300. Each set of limiting nuts 308 includes two limiting nuts 308. The two limiting nuts 308 symmetrically press against the two sides of the corresponding positioning plate 307 along the length direction of the positioning screw 306.

[0045] Based on the size of the battery 101, the spacing between two adjacent temperature-conducting plates 300 is adjusted by a positioning adjustment mechanism to ensure that the temperature-conducting plates 300 fit against the side of the battery 101. Specifically, rotating the adjusting sleeve 302 causes the corresponding connecting bracket to move along the axial direction of the fixing screw 303, thereby causing the temperature-conducting plate 300 to move along the width direction, so that the temperature-conducting plate 300 can fit tightly against its corresponding battery 101.

[0046] After rotating the adjusting screw sleeve 302, the two limiting nuts 308 in the set of limiting nuts 308 on both sides of the positioning plate 307 are rotated to release the restriction on the positioning plate 307, push the positioning plate 307 to adjust the distance between the two adjacent positioning plates 307 so that they can fit against the surface of the battery 101. Then tighten the limiting nuts 308 to fix the positioning plate 307. In the specific adjustment process, the positioning plates 307 on the two adjacent temperature conducting plates 300 need to be adjusted synchronously, so that the battery 101 can be installed and positioned by the temperature conducting plates 300 on both sides and the adjacent positioning plates 307. At the same time, it can be adapted to the installation and use of batteries 101 of different sizes.

[0047] In this example, two parallel guide strips 304 are installed on the inner wall of the tray 100. The temperature-conducting plate 300 has guide holes 305 that mate with the guide strips 304. The temperature-conducting plate 300 slides along the length of the guide strips 304 through the guide holes 305. The guide strips 304 and guide holes 305 are used to restrict the movement direction of the temperature-conducting plate 300, preventing it from shifting.

[0048] In this example, in order to improve the heat dissipation and heat preservation effect of battery 101, the heat conduction plate 300 is also provided with a heat conduction pipe 411. The heat conduction pipe 411 is connected to the flow guide pipe 201 on the water-cooled heat conduction plate 200 through the flow guide structure.

[0049] Specifically, the flow guiding structure includes a connecting pipe 401, a branch pipe 400, a transfer pipe 402, and a corrugated pipe 403. The connecting pipe 401 is located outside the temperature conducting plate 300 and is connected to the temperature conducting pipe 411. The branch pipe 400 is connected to the flow guiding pipe 201 on the water-cooled heat conducting plate 200. The branch pipe 400 is connected to the corrugated pipe 403, and the corrugated pipe 403 is connected to the connecting pipe 401 through a transfer pipe 402.

[0050] Fixing components are also provided between the diverter pipe 400 and the adapter pipe 402, and between the connecting pipe 401 and the adapter pipe 402. The fixing components include an umbrella-shaped collar 404 and a sealing ring 405. The sealing ring 405 contacts the inner wall of the adapter pipe 402, and the umbrella-shaped collar 404 presses against the outer side of the sealing ring 405. The fixing components also include several pressing screws 406. The multiple pressing screws 406 are evenly distributed along the circumference of the adapter pipe 402. Each pressing screw 406 passes through the side wall of the adapter pipe 402 along its own axial direction and presses against the side wall of the corresponding diverter pipe 400 or connecting pipe 401, while contacting the inclined surface of the umbrella-shaped collar.

[0051] Through the above technical solution, before adjusting the position of the temperature-conducting plate 300, the corresponding pressing screws 406 on both sides of the temperature-conducting plate 300 are rotated. When the pressing screws 406 rotate, they can move through the threaded engagement with the adapter pipe 402, causing the pressing screws 406 to disengage from the surface of the diversion pipe 400 or the connecting pipe 401. At the same time, the pressing screws 406 will disengage from the contact with the inclined surface of the corresponding umbrella-shaped collar 404. At this time, the adapter pipe 402 can have a certain amount of room to move on the diversion pipe 400 or the connecting pipe 401, and the temperature-conducting plate 300 can be moved. At position 0, as the temperature-conducting plate 300 moves, it drives the corresponding connecting pipe 401 to move, which causes the two corresponding adapter pipes 402 to rotate on the diverter pipe 400 and the connecting pipe 401 respectively. At the same time, the distance between the two adapter pipes 402 will also change, which in turn drives the bellows 403 to expand and contract to adapt. After the position of the temperature-conducting plate 300 is adjusted, the corresponding pressing screw 406 is rotated in the opposite direction, so that it is pressed again on the inclined surface of the umbrella-shaped collar 404, so that the sealing ring 405 fits tightly with the inner wall of the adapter pipe 402 to improve the sealing performance.

[0052] In this example, the bellows 403 is also provided with a reinforcement structure for fixing it. The reinforcement structure includes a reinforcement sleeve 407, a connecting rod 408, a support sleeve 409, and a mounting base 410. The reinforcement sleeve 407 is fixedly sleeved on the radial outer side of the bellows 403. There are two connecting rods 408, which are symmetrically installed on both sides of the reinforcement sleeve 407. The length extension direction of the connecting rod 408 is parallel to the axis of the bellows 403. A support sleeve 409 is slidably sleeved on the upper and lower sides of each connecting rod 408. The end of the support sleeve 409 away from the connecting rod 408 is installed on the outer surface of the adapter pipe 402 on the corresponding side through the mounting base 410.

[0053] By adopting the above technical solution, when the position of the transfer pipe 402 changes during the movement of the temperature guide plate 300, it can drive the corresponding support sleeve 409 to slide on the connecting rod 408. The connecting rod 408 and the support sleeve 409 provide auxiliary support for the bellows 403 to avoid deformation of the bellows 403.

[0054] Furthermore, in this example, the temperature-conducting pipe 411 consists of a main pipe I and multiple branch pipes I with a feather-like network structure; the flow-guiding pipe 201 consists of a main pipe II and multiple branch pipes II with an arc-shaped parallel vein structure. Specifically, the temperature-conducting pipe 411 adopts a topological structure similar to the feather-like network veins of a leaf of a plant in the genus *Prunus* of the family Rosaceae in the class Dicotyledonous plant phylum, while the flow-guiding pipe 201 adopts a topological structure similar to the arc-shaped parallel veins of a leaf of a plant in the genus *Melastoma* of the family Melastomataceae in the class Dicotyledonous plant phylum. Under the same coolant parameters, the biomimetic leaf vein flow channel design of both of these offers the following advantages compared to traditional flow channel structures:

[0055] 1) High heat exchange efficiency: The leaf vein flow channel design mimics the structure of leaf veins in nature, which can significantly reduce the pressure drop of the flow channel, reduce the flow resistance, reduce the energy loss in the flow of liquid medium, make the liquid medium flow faster, achieve higher heat exchange efficiency, and thus more effectively control the battery temperature.

[0056] 2) Uniform temperature distribution: The biomimetic leaf vein flow channel design ensures that the liquid medium is evenly distributed in the temperature-conducting plate, which can ensure uniform temperature in all parts of the battery pack, avoid local overheating, and extend the battery's service life.

[0057] In summary, the water-cooled heat-conducting plate 200 with internal guide pipe 201 and the heat-conducting plate 300 with internal temperature-conducting pipe 411 achieve heat transfer to the side and bottom of the battery 101, making the heat dissipation or heat preservation of the battery 101 more uniform and improving the heat dissipation and heat preservation effect.

[0058] It should be emphasized that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of this invention.

Claims

1. A battery tray for new energy vehicles that supports heat dissipation and insulation, comprising a tray (100) and a plurality of batteries (101) installed in the tray (100), characterized in that, The tray (100) is equipped with a cooling structure and a heat insulation structure inside. The cooling structure includes a water-cooled heat-conducting plate (200), which is placed in a tray (100) and located below the battery (101). The water-cooled heat-conducting plate (200) has a flow guide pipe (201) inside, and an inlet pipe (202) and an outlet pipe (203) connected to the flow guide pipe (201) are installed on one side of the water-cooled heat-conducting plate (200). The thermal insulation structure includes a thermal insulation pad (204) attached to the inner wall and bottom surface of the tray (100), and the water-cooled heat-conducting plate (200) and the battery (101) are both located inside the thermal insulation pad (204); Several temperature-conducting plates (300) are slidably installed inside the tray (100). Multiple batteries (101) are arranged between adjacent temperature-conducting plates (300). A positioning adjustment mechanism is connected to the temperature-conducting plate (300) to adjust the distance between two adjacent temperature-conducting plates (300). A temperature-conducting pipe (411) is arranged inside the temperature-conducting plate (300). The temperature-conducting pipe (411) is connected to the guide pipe (201) on the water-cooled heat-conducting plate (200) through a flow-guiding structure. The flow-guiding structure includes a connecting pipe (401), a branch pipe (400), a connecting pipe (402), and a corrugated pipe (403). The connecting pipe (401) is arranged outside the temperature-conducting plate (300) and connected to the temperature-conducting pipe (411). The branch pipe (400) is connected to the guide pipe (201) on the water-cooled heat-conducting plate (200). The branch pipe (400) is connected to the corrugated pipe. (403) The corrugated pipe (403) and the connecting pipe (401) are connected by a connecting pipe (402). The diverter pipe (400) and the connecting pipe (402), and the connecting pipe (401) and the connecting pipe (402) are all provided with fixing components. The fixing components include an umbrella-shaped collar (404) and a sealing ring (405). The sealing ring (405) contacts the inner wall of the connecting pipe (402). The umbrella-shaped collar (404) presses against the outer side of the sealing ring (405). The fixing components also include a number of pressing screws (406). The multiple pressing screws (406) are evenly distributed along the circumference of the connecting pipe (402). Each pressing screw (406) passes through the side wall of the connecting pipe (402) along its own axial direction and presses against the side wall of the corresponding diverter pipe (400) or connecting pipe (401), while contacting the inclined surface of the umbrella-shaped collar.

2. The new energy vehicle battery tray supporting heat dissipation and heat preservation according to claim 1, characterized in that, The positioning and adjustment mechanism includes a connecting frame assembly, an adjusting screw sleeve (302), and a fixing screw (303). The connecting frame assembly corresponds one-to-one with the temperature guide plate (300) in terms of quantity and position. Each connecting frame assembly includes two connecting frames, symmetrically arranged on both sides of the width direction of the corresponding temperature guide plate (300). There are two fixing screws (303), which are respectively fixedly installed on both sides of the length direction of the connecting frame. Through holes are opened on both ends of the connecting frame. The connecting frame is sleeved on the fixing screw (303) through the through holes. The adjusting screw sleeve (302) corresponds one-to-one with the connecting frame assembly in terms of quantity and position. An adjusting screw sleeve (302) is provided between the two connecting frames in each connecting frame assembly. The adjusting screw sleeve (302) is threadedly connected to the fixing screw (303).

3. The new energy vehicle battery tray supporting heat dissipation and heat preservation according to claim 2, characterized in that, Each of the connecting frames includes two connecting plates (301) at both ends, a positioning screw (306) connected between the two connecting plates (301), and a group of limiting nuts (308) sleeved on the positioning screw (306) and threadedly connected to the positioning screw (306). The groups of limiting nuts (308) on the two connecting frames on both sides of the same temperature guide plate (300) are symmetrically arranged. The positioning adjustment mechanism also includes a group of positioning plates (307), and the group of positioning plates (307) corresponds one-to-one with the temperature guide plate (300) in number and position. Correspondingly, each group of positioning plates (307) includes multiple positioning plates (307) that are movably mounted on the temperature-conducting plate (300) at intervals along the length direction of the temperature-conducting plate (300). Each positioning plate (307) corresponds to a pair of symmetrically arranged limiting nuts (308) on both sides of the temperature-conducting plate (300). Each group of limiting nuts (308) includes two limiting nuts (308). The two limiting nuts (308) symmetrically press against the two sides of the corresponding positioning plate (307) along the length direction of the positioning screw (306).

4. The new energy vehicle battery tray supporting heat dissipation and heat preservation according to claim 1, characterized in that, Two parallel guide strips (304) are installed on the inner wall of the tray (100). The temperature guide plate (300) has guide holes (305) that cooperate with the guide strips (304). The temperature guide plate (300) slides along the length of the guide strips (304) through the guide holes (305).

5. The new energy vehicle battery tray supporting heat dissipation and heat preservation according to claim 1, characterized in that, The corrugated pipe (403) is also provided with a reinforcement structure for fixing it. The reinforcement structure includes a reinforcement sleeve (407), a connecting rod (408), a support sleeve rod (409), and a mounting base (410). The reinforcement sleeve (407) is fixedly sleeved on the radial outer side of the corrugated pipe (403). There are two connecting rods (408), which are symmetrically installed on both sides of the reinforcement sleeve (407). The length extension direction of the connecting rod (408) is parallel to the axis of the corrugated pipe (403). A support sleeve rod (409) is slidably sleeved on the upper and lower sides of each connecting rod (408). The end of the support sleeve rod (409) away from the connecting rod (408) is installed on the outer surface of the adapter pipe (402) on the corresponding side through the mounting base (410).

6. The new energy vehicle battery tray supporting heat dissipation and heat preservation according to claim 1, characterized in that, The tray (100) also includes a heating rod (205) inserted into the flow guide tube (201).

7. A new energy vehicle battery tray supporting heat dissipation and insulation according to claim 1, characterized in that, The temperature-conducting tube (411) consists of a main tube I and multiple branch tubes I with a feather-like network structure; the flow-guiding tube (201) consists of a main tube II and multiple branch tubes II with an arc-shaped parallel vein structure.

Images