A new energy battery insulation device and manufacturing method

Abstract

The present invention belongs to the field of new energy vehicles and provides a new energy battery insulation device and manufacturing method, including a square battery slot for placing a battery pack, characterized in that a plurality of insulation components are provided inside the battery slot, and the plurality of insulation components are arranged between each inner wall of the battery slot and the battery pack, and each insulation component includes a telescopic component and an insulation plate, the fixed end of the telescopic component is fixed to the inner wall of the battery slot, the telescopic end of the telescopic component is connected to the insulation plate, and the telescopic component drives the insulation plate to fit or move away from the side wall of the battery pack in the corresponding direction. The present invention can insulate the battery pack when the temperature is lower than the optimal temperature range of the battery pack, and does not affect the heat dissipation of the battery pack when the temperature is higher than the optimal temperature range of the battery pack.

Description

Technical Field

[0001] The present invention belongs to the field of new energy vehicles, and specifically relates to a new energy battery heat insulation device and a manufacturing method. Background Art

[0002] Through testing and statistics of battery packs of a large number of new energy vehicles, it was found that the optimal operating temperature of the battery pack is between 0 and 40°C. When the temperature is lower than the optimal operating temperature, it is easy to reduce the activity of the battery pack in the battery pack, thereby shortening the driving mileage and also causing the risk of shortening the service life of the battery pack. When the temperature is higher than the optimal operating temperature, the probability of spontaneous combustion of the battery pack increases.

[0003] At present, in order to prevent the low temperature in winter from reducing the activity of the battery pack, the battery pack is usually wrapped with insulation cotton or a vacuum layer is provided on the outer circle of the battery pack to prevent heat transfer. However, when the temperature is high outside winter, both the insulation cotton and the vacuum layer will affect the heat dissipation of the battery pack, and in severe cases, it may even cause the battery to spontaneously combust. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a new energy battery insulation device and manufacturing method, which can insulate the battery pack when the temperature is lower than the optimal temperature range of the battery pack, and does not affect the heat dissipation of the battery pack when the temperature is higher than the optimal temperature range of the battery pack.

[0005] The technical solution of the present invention includes a square battery slot, which is used to place a battery pack. It is characterized in that a plurality of thermal insulation components are provided inside the battery slot, and the plurality of thermal insulation components are arranged between each inner wall of the battery slot and the battery pack. Each of the thermal insulation components includes a telescopic component and a thermal insulation plate. The fixed end of the telescopic component is fixed on the inner wall of the battery slot, and the telescopic end of the telescopic component is connected to the thermal insulation plate. The telescopic component drives the thermal insulation plate to fit into or away from the side wall of the battery pack in the corresponding position.

[0006] When the temperature is lower than the optimal temperature range of the battery pack, the telescopic end of the telescopic component extends, driving the insulation board to contact the battery pack for thermal insulation.

[0007] When the temperature is higher than the optimal temperature range of the battery pack, the telescopic end of the telescopic component contracts, driving the heat insulation plate to separate from the battery pack to avoid affecting the heat dissipation of the battery pack.

[0008] Furthermore, each side wall of the battery slot includes several movable group panels, each of the movable group panels includes an outer mesh plate and two inner mesh plates, a support frame is provided at the center of one side of the outer mesh plate, the two inner mesh plates are respectively arranged on both sides of the support frame, and the two inner mesh plates are slidingly connected to the outer mesh plate, and the ends of the two inner mesh plates away from the support frame are connected to the two sides of the outer mesh plate through a first spring, the fixed end of the telescopic component is fixed on the support frame, and the telescopic end of the telescopic component is connected to the two inner mesh plates in the corresponding position through a rope.

[0009] Furthermore, each of the support frames is provided with two fixed pulleys, and the two fixed pulleys respectively cooperate with the corresponding ropes, so that the ropes can pull the inner mesh plate along the sliding direction of the inner mesh plate.

[0010] Furthermore, each of the telescopic components includes a cylinder telescopic rod, and the fixed end of each cylinder telescopic rod is respectively fixed on the corresponding support frame, and the inner lining rod of the cylinder telescopic rod is respectively connected to the insulation board in the corresponding position and the two inner mesh plates in the corresponding position.

[0011] Furthermore, each of the heat insulation panels includes a main board and two side panels, and each of the telescopic components includes a cylinder telescopic rod, a first connecting rod and a sleeve. The two side panels are rotatably connected to both sides of the main board, and the sleeve is slidably sleeved on the outer sleeve of the cylinder telescopic rod. The inner lining tube of the cylinder telescopic rod is a hollow structure, and an annular protrusion is provided at one end close to the heat insulation panel. The annular protrusion is used to squeeze the sleeve so that the sleeve slides. A second spring is provided in the inner lining tube. One end of the first connecting rod is connected to the heat insulation panel, and the other end is inserted into the inner lining tube to squeeze the second spring. The sleeve is rotatably connected to the two side panels through two second connecting rods, and the sleeve is connected to the two inner mesh plates in corresponding positions.

[0012] Furthermore, a temperature sensor is provided inside the battery slot, and each of the telescopic components is connected to the temperature sensor.

[0013] The present invention also provides a method for manufacturing a new energy battery heat insulation device, comprising the following steps:

[0014] Step 1: In each side wall of the battery slot, the two inner mesh plates are slidably connected to both sides of the support frame of the outer mesh plate, and then the ends of the two inner mesh plates away from the support frame are connected to both sides of the outer mesh plate through the first spring.

[0015] Step 2: Fix the telescopic component on the support frame, and connect the telescopic ends of the telescopic component to the heat insulation board respectively.

[0016] Step 3: Repeat steps 1 and 2 so that each side wall of the battery container is connected to the telescopic component, and the telescopic component is connected to the heat insulation board.

[0017] Step 4: Assemble the side walls of the plurality of battery containers into a square shell so that grooves are formed between the plurality of heat insulation plates.

[0018] Step 5: Place the battery pack into the groove in step 4.

[0019] The technical solution provided by the embodiment of the present invention has the following advantages compared with the existing technology:

[0020] When the temperature is lower than the optimal temperature range of the battery pack, the telescopic end of the telescopic component extends, driving the heat insulation plate to contact the battery pack for thermal insulation. When the temperature is higher than the optimal temperature range of the battery pack, the telescopic end of the telescopic component contracts, driving the heat insulation plate to separate from the battery pack to avoid affecting the heat dissipation of the battery pack. Compared with the existing technology, the present invention can insulate the battery pack when the temperature is lower than the optimal temperature range of the battery pack, and does not affect the heat dissipation of the battery pack when the temperature is higher than the optimal temperature range of the battery pack.

[0021] Other advantages, objectives and features of the present invention will be reflected in part from the following description and will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the overall structure of a battery heat insulation device according to one embodiment of the present invention;

[0024] Figure 2 for Figure 1 A magnified view of middle A;

[0025] Figure 3 This is a schematic structural diagram of an outer mesh plate according to one embodiment of the present invention;

[0026] Figure 4 This is a schematic structural diagram of an inner mesh plate according to one embodiment of the present invention.

[0027] Reference numerals:

[0028] 1. Battery slot; 11. Outer mesh plate; 12. Inner mesh plate; 13. Support frame; 14. First spring; 2. Battery pack; 3. Heat insulation plate; 31. Main board; 32. Side panel; 4. Rope; 5. Fixed pulley; 6. Telescopic component; 61. Cylinder telescopic rod; 611. Outer sleeve; 612. Inner lining tube; 6121. Annular protrusion; 62. First connecting rod; 63. Sleeve; 631. Second connecting rod; 64. Second spring. DETAILED DESCRIPTION

[0029] A specific embodiment of the present invention is described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] In the description of the embodiments of the present invention, unless otherwise specified, “a plurality of” means two or more.

[0032] like Figures 1 to 4 As shown, the present invention provides a new energy battery insulation device, comprising a square battery container 1, wherein the battery container 1 is used to place a battery pack 2, and is characterized in that a plurality of insulation components are provided inside the battery container 1, and the plurality of insulation components are arranged between each inner wall of the battery container 1 and the battery pack 2;

[0033] Each of the thermal insulation assemblies includes a telescopic component 6 and a thermal insulation board 3. The fixed end of the telescopic component 6 is fixed to the inner wall of the battery compartment 1, and the telescopic end of the telescopic component 6 is connected to the thermal insulation board 3. The telescopic component 6 drives the thermal insulation board 3 to fit into or away from the side wall of the battery pack 2 in the corresponding position.

[0034] When the temperature is lower than the optimal temperature range of the battery pack 2 , the telescopic end of the telescopic component 6 extends, driving the heat insulation plate 3 to contact the battery pack 2 for heat insulation.

[0035] When the temperature is higher than the optimal temperature range of the battery pack 2 , the telescopic end of the telescopic component 6 contracts, driving the heat insulation plate 3 to separate from the battery pack 2 to avoid affecting the heat dissipation of the battery pack 2 .

[0036] Optionally, in the embodiment provided by the present invention, the material of the heat insulation board 3 is rock wool board, polyurethane foam material, polystyrene board, etc. The present invention does not impose any restrictions on this, as long as the material can block the heat flow transfer.

[0037] In the embodiment provided by the present invention, the battery container 1 is made of a thermally conductive material.

[0038] It is understandable that when heat dissipation of the battery pack 2 is required, if the thermal conductivity of the battery container 1 is poor, it is easy for heat to accumulate in the battery container 1, causing the temperature to rise and even causing spontaneous combustion of the battery pack 2. Selecting a material with good thermal conductivity can better transfer heat when heat dissipation of the battery pack 2 is required.

[0039] Optionally, in the embodiment provided by the present invention, the material of the battery container 1 is preferably copper, but the present invention does not impose any limitation on this, and other materials with good thermal conductivity can be used.

[0040] In the embodiment provided by the present invention, each side wall of the battery slot 1 includes a plurality of movable group panels, each of the movable group panels includes an outer mesh plate 11 and two inner mesh plates 12, a support frame 13 is provided at the center of one side of the outer mesh plate 11, the two inner mesh plates 12 are respectively arranged on both sides of the support frame 13, and the two inner mesh plates 12 are slidingly connected to the outer mesh plate 11, and the ends of the two inner mesh plates 12 away from the support frame 13 are connected to the two sides of the outer mesh plate 11 through a first spring 14, the fixed end of the telescopic component 6 is fixed on the support frame 13, and the telescopic end of the telescopic component 6 is connected to the two inner mesh plates 12 in the corresponding position through a rope 4.

[0041] In the embodiment provided by the present invention, each of the support frames 13 is provided with two fixed pulleys 5, and the two fixed pulleys 5 respectively cooperate with the corresponding ropes 4 so that the ropes 4 can pull the inner mesh plate 12 along the sliding direction of the inner mesh plate 12.

[0042] It is understandable that if the rope 4 directly rubs against the support frame 13, it is easy to cause the rope 4 to break, making the inner mesh plate 12 and / or the sleeve 63 unable to move, and ultimately making it impossible to insulate or dissipate heat for the battery pack 2.

[0043] In the embodiment provided by the present invention, each of the telescopic components 6 includes a cylinder telescopic rod 61, and the fixed end of each of the cylinder telescopic rods 61 is respectively fixed on the corresponding support frame 13, and the inner lining rods of the cylinder telescopic rod 61 are respectively connected to the insulation board 3 in the corresponding position and the two inner mesh panels 12 in the corresponding position.

[0044] It is understood that when the battery pack 2 needs to be insulated, the cylinder telescopic rod 61 extends, driving the insulation plate 3 to contact the battery pack 2 for thermal insulation. The rope 4 pulls the two inner mesh panels 12 toward the support frame 13, so that the mesh holes of the two inner mesh panels 12 are offset and closed with the mesh holes of the outer mesh panel 11. When the battery needs to dissipate heat, the cylinder telescopic rod 61 contracts, driving the insulation plate 3 to separate from the side wall of the battery compartment 1. The two first springs 14 respectively pull the two inner mesh panels 12 away from the support frame 13, so that the mesh holes of the two inner mesh panels 12 are aligned with the mesh holes of the outer mesh panel 11.

[0045] In the embodiment provided by the present invention, each of the heat insulation panels 3 includes a main board 31 and two side panels 32, and each of the telescopic components 6 includes a cylinder telescopic rod 61, a first connecting rod 62 and a sleeve 63. The two side panels 32 are rotatably connected to both sides of the main board 31, and the sleeve 63 is slidably sleeved on the outer sleeve 611 of the cylinder telescopic rod 61. The inner lining tube 612 of the cylinder telescopic rod 61 is a hollow structure, and an annular protrusion 6121 is provided at one end close to the heat insulation panel 3. The annular protrusion 6121 is used to squeeze the sleeve 63 so that the sleeve 63 slides. A second spring 64 is provided in the inner lining tube 612. One end of the first connecting rod 62 is connected to the heat insulation panel 3, and the other end is inserted into the inner lining tube 612 to squeeze the second spring 64. The sleeve 63 is rotatably connected to the two side panels 32 through two second connecting rods 631, and the sleeve 63 is connected to the two inner mesh plates 12 in corresponding positions.

[0046] The working principle is:

[0047] When the battery pack 2 needs to be insulated, the inner lining tube 612 of the cylinder telescopic rod 61 extends out of the outer sleeve 611, and drives the main board 31 of the insulation board 3 toward the battery pack 2 through the first connecting rod 62. At the same time, the annular protrusion 6121 of the inner lining tube 612 contacts one end of the sleeve 63, driving the sleeve 63 to slide on the outer sleeve 611 toward the battery pack 2, and driving the two inner mesh plates 12 to pull close to the support frame 13. When the main board 31 contacts the side wall of the battery pack 2, the inner lining tube 612 continues to approach the battery pack 2, and the first connecting tube squeezes the second spring 64 in the inner lining tube 612, so that the sleeve 63 still slides on the outer sleeve 611. At this time, the two second connecting rods 631 on the sleeve 63 squeeze the two side plates 32 so that the two side plates 32 also contact the battery pack 2, completing the insulation of the battery pack 2.

[0048] When the battery pack 2 needs to be cooled, the inner lining tube 612 of the cylinder telescopic rod 61 shrinks to the outer sleeve 611. At this time, under the action of the first spring 14, the two inner mesh plates 12 are pulled away from the support frame 13. At the same time, the sleeve 63 is pulled on the outer sleeve 611 away from the battery pack 2 through the rope 4. Since the main board 31 is still in contact with the battery pack 2 under the action of the second spring 64, the sleeve 63 slides and pulls the two side panels 32 through the second connecting rod 631, so that the two side panels 32 are rotated and folded relative to the main board 31. The inner lining tube 612 shrinks further, and the second spring 64 returns to its original state. At this time, the first connecting lever drives the main board 31 away from the battery pack 2.

[0049] It can be understood that when the battery pack 2 needs to be cooled, if the insulation board 3 is a whole board, although the insulation board 3 and the battery pack 2 are separated, the whole board will block the air flowing in from the inner mesh board 12 and the outer mesh board 11 from acting on the battery pack 2. It is necessary to reduce the area of ​​the insulation board 3 to avoid blocking the air from acting on the battery pack 2. Therefore, the insulation board 3 is divided into a main board 31 and two side boards 32, and the blocking area is reduced by folding the side boards 32.

[0050] In the embodiment provided by the present invention, a temperature sensor is further provided inside the battery slot 1 , and each of the telescopic components 6 is connected to the temperature sensor.

[0051] When the temperature detected by the temperature sensor is lower than the optimal temperature range of the battery pack 2, the telescopic end of the telescopic component 6 extends, driving the insulation plate 3 to contact the side wall of the battery slot 1 to insulate the battery pack 2. The rope 4 pulls the two inner mesh plates 12 close to the support frame 13, so that the meshes of the two inner mesh plates 12 are staggered and closed with the meshes of the outer mesh plate 11, reducing the impact of the external temperature on the temperature of the battery pack 2.

[0052] When the temperature detected by the temperature sensor is higher than the optimal temperature range of the battery pack 2, the telescopic end of the telescopic component 6 contracts, driving the heat insulation plate 3 to separate from the side wall of the battery slot 1, and the two first springs 14 respectively pull the two inner mesh plates 12 away from the support frame 13, so that the mesh holes of the two inner mesh plates 12 are aligned with the mesh holes of the outer mesh plate 11 to allow air circulation, thereby dissipating heat from the battery pack 2.

[0053] The present invention also provides a method for manufacturing a new energy battery heat insulation device, comprising the following steps:

[0054] Step 1: In each side wall of the battery slot 1, the two inner mesh plates 12 are slidably connected to both sides of the support frame 13 of the outer mesh plate 11, and then the ends of the two inner mesh plates 12 away from the support frame 13 are connected to both sides of the outer mesh plate 11 through the first spring 14.

[0055] Step 2: Fix the telescopic component 6 on the support frame 13 , and connect the telescopic ends of the telescopic component 6 to the heat insulation board 3 respectively.

[0056] Step 3: Repeat steps 1 and 2, so that each side wall of the battery container 1 is connected to the telescopic component 6 , and the telescopic component 6 is connected to the heat insulation board 3 .

[0057] Step 4: Assemble the side walls of the plurality of battery containers 1 into a square shell, so that grooves are formed between the plurality of heat insulation plates 3 .

[0058] Step 5: Place the battery pack 2 into the groove in step 4.

[0059] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0060] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and exemplary embodiments. They can be applied to a variety of fields suitable for the present invention. Further modifications will be readily apparent to those skilled in the art. Therefore, the present invention is not limited to the specific details and illustrations shown and described herein without departing from the general concept defined by the claims and their equivalents.

Claims

1. A new energy battery insulation device, comprising a cubic battery slot for placing a battery pack, characterized in that: A plurality of heat-insulating components are provided inside the battery container, and the plurality of heat-insulating components are arranged between each inner wall of the battery container and the battery pack; Each side wall of the battery container includes a movable panel assembly, which includes an outer mesh panel and two inner mesh panels. A support frame is provided at the center of one side of the outer mesh panel. The two inner mesh panels are arranged on both sides of the support frame, and the two inner mesh panels are slidably connected to the outer mesh panel. One end of the two inner mesh panels away from the support frame is connected to both sides of the outer mesh panel via a first spring. The heat insulation assembly includes a telescopic component and a heat insulation board, the heat insulation board includes a main board and two side boards rotatably connected to both sides of the main board, the telescopic component includes a cylinder telescopic rod, a sleeve, a second spring, a first connecting rod and two second connecting rods, the sleeve is slidably sleeved on the outer sleeve of the cylinder telescopic rod, the inner lining tube of the cylinder telescopic rod is a hollow structure, and an annular protrusion is provided at one end close to the heat insulation board, the annular protrusion is used to squeeze the sleeve to make the sleeve slide, the second spring is located in the inner lining tube, one end of the first connecting rod is connected to the main board, and the other end is inserted in the inner lining tube to squeeze the second spring, the sleeve is rotatably connected to the two side boards through the two second connecting rods, and the sleeve is connected to the two inner mesh plates by a rope; When the temperature is lower than the optimal temperature range of the battery pack, the inner lining tube of the cylinder telescopic rod extends to drive the main board to fit with the battery pack and the two side panels are unfolded through the second connecting rod. At the same time, the two inner mesh panels are pulled close to the support frame through the rope, so that the outer mesh panel and the two inner mesh panels are staggered and closed to achieve thermal insulation. When the temperature is higher than the optimal temperature range of the battery pack, the inner lining tube of the cylinder telescopic rod contracts to drive the main board to separate from the battery pack and fold the two side panels through the second connecting rod. The first spring pulls the two inner mesh plates to align the outer mesh plate and the two inner mesh plates to avoid affecting the heat dissipation of the battery pack.

2. A new energy battery insulation device according to claim 1, characterized in that: Each of the support frames is provided with two fixed pulleys, and the two fixed pulleys are respectively matched with the corresponding ropes, so that the ropes can pull the inner mesh plate along the sliding direction of the inner mesh plate.

3. A new energy battery heat insulation device according to claim 1, characterized in that: A temperature sensor is also provided inside the battery slot, and each of the cylinder telescopic rods is connected to the temperature sensor.

4. The method for manufacturing a new energy battery heat insulation device according to claim 1, characterized in that: The following steps are involved: Step 1: In each side wall of the battery container, two inner mesh plates are slidably connected to both sides of the support frame of the outer mesh plate, and then the ends of the two inner mesh plates away from the support frame are connected to both sides of the outer mesh plate through a first spring; Step 2: Fix the cylinder telescopic rod on the support frame, and connect the telescopic ends of the cylinder telescopic rod to the heat insulation board respectively; Step 3: Repeat steps 1 and 2 so that each side wall of the battery container is connected to the cylinder telescopic rod, and the cylinder telescopic rod is connected to the heat insulation board; Step 4: Assembling the side walls of the plurality of battery containers into a square housing so that grooves are formed between the plurality of heat insulation plates; Step 5: Place the battery pack into the groove in step 4.

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