Battery tray and new energy electric vehicle

Abstract

The present invention discloses a battery tray and a new energy electric vehicle. The battery tray includes a main fixing mechanism, including a cavity for installing batteries and a base plate for fixing, wherein the cavity is arranged on the base plate; a buffer protection mechanism is arranged on the base plate around the periphery of the cavity, and is used to buffer and reduce shock to the cavity; and an overheat protection mechanism is arranged inside the cavity, and is used to dissipate heat from the cavity. The cavity is fixed in the car through the base plate, and is used to place batteries, and the cavity is buffered and reduced by the buffer protection mechanism, so as to effectively protect the batteries; further, by arranging the overheat protection mechanism inside the cavity, an overheat protection function is provided for the battery, thereby increasing the service life of the battery.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle auxiliary devices, and in particular to a battery tray and a new energy electric vehicle. Background Art

[0002] The core components of electric vehicles include battery modules, which largely determine the range of electric vehicles. The battery tray in the battery module is the main component that plays a bearing role. The modular battery pack is arranged in the battery tray and fixed to the chassis of the car through the battery tray. The battery will generate heat during long-term operation. If it cannot be dissipated in time, it will cause damage to the battery and a decrease in the output power of the vehicle. In addition, during the operation of the vehicle, a certain inertial force will be generated due to movement. If the inertial protection of the battery cannot be achieved, it will also cause damage to the battery. Summary of the invention

[0003] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a battery tray that can perform inertia protection and overheat protection on the battery.

[0004] The present invention also provides a new energy electric vehicle comprising the battery tray.

[0005] A battery tray according to an embodiment of the first aspect of the present invention comprises:

[0006] A main fixing mechanism, comprising a cavity for installing a battery and a base plate for fixing, wherein the cavity is arranged on the base plate;

[0007] A buffer protection mechanism is arranged on the base plate around the periphery of the cavity and is used for buffering and absorbing shock of the cavity; and

[0008] An overheat protection mechanism is arranged inside the cavity and is used to dissipate heat from the cavity.

[0009] The battery tray according to the first aspect of the embodiment of the present invention has at least the following beneficial effects: it is fixed in the car by a base plate, the cavity is used to place the battery, and the cavity is buffered and shock-absorbing by a buffer protection mechanism, thereby effectively protecting the battery; further, an overheating protection mechanism is provided inside the cavity to provide an overheating protection function for the battery, thereby increasing the service life of the battery.

[0010] According to the battery tray described in the embodiment of the first aspect of the present invention, the main fixing mechanism includes a fixing frame, a support member, a fixing seat and a mounting position, the fixing frame has the cavity, the base plate is arranged at the bottom of the fixing frame, the support member is provided in plurality and is arranged on the bottom surface within the fixing frame, the fixing seat is arranged on at least one of the corners on the inner side of the fixing frame for limiting the battery, the mounting position is arranged on at least one of the side surfaces of the fixing frame, and the overheating protection structure is arranged at the mounting position.

[0011] According to the battery tray described in the embodiment of the first aspect of the present invention, two ends of each support member respectively abut against two side surfaces of the fixing frame in the length direction, and each support member is spaced apart and evenly arranged in sequence along the length direction of the fixing frame.

[0012] According to the battery tray of the first aspect of the present invention, the buffer protection mechanism includes a fixed plate, a fixed frame, an electromagnetic hydraulic cylinder, a first rotating shaft seat, a first two-way linkage rod, a main rotating shaft seat, a secondary two-way linkage rod, a linkage frame, an elastic component, a rotating end block, a docking plate, a first linkage shaft and a second linkage shaft;

[0013] The fixing plate is fixedly arranged on the base plate, and the fixing plate is used to carry the fixing frame;

[0014] The relative bottom end of the fixed frame is rotatably connected to the first rotating shaft seat, and both ends of the first rotating shaft seat are respectively rotatably connected to one end of the first two-way linkage rod, and the relative top end of the fixed frame is rotatably connected to the main rotating shaft seat, the electromagnetic hydraulic cylinder is fixedly connected to the middle part of the main rotating shaft seat, and both ends of the main rotating shaft seat are respectively fixedly connected to one end of the secondary two-way linkage rod;

[0015] One end of the elastic component is fixedly connected to the relative bottom end of the electromagnetic hydraulic cylinder, the relative top end of the electromagnetic hydraulic cylinder is set as an output end, the rotating end block is set on the output end, and the other end of the elastic component is fixedly connected to the rotating end block;

[0016] The linkage frame is rotatably connected to the rotating end block, the first linkage shaft is rotatably connected to the opposite top end of the linkage frame, the second linkage shaft is rotatably connected to the opposite bottom end of the linkage frame, the two ends of the first linkage shaft are respectively fixedly connected to the other end of the secondary bidirectional linkage rod, and the two ends of the second linkage shaft are respectively fixedly connected to the other end of the first bidirectional linkage rod;

[0017] The linkage frame is fixedly arranged on the docking plate, and the docking plate is used for supporting the cavity.

[0018] According to the battery tray described in the embodiment of the first aspect of the present invention, the buffer protection mechanism also includes a ball slot seat, which is fixedly connected to the fixed frame, and the ball slot seat is slidably connected to the bottom of the electromagnetic hydraulic cylinder for supporting the electromagnetic hydraulic cylinder.

[0019] According to the battery tray described in the embodiment of the first aspect of the present invention, the elastic component is configured as a spring, and the spring is sleeved on the outer circumference of the electromagnetic hydraulic cylinder.

[0020] According to the battery tray described in the embodiment of the first aspect of the present invention, the cavity is configured to be square, four groups of the buffer protection mechanisms are provided, and the docking plates are respectively fixedly connected to the four corners of the cavity.

[0021] According to the battery tray of the first aspect of the present invention, the overheat protection mechanism includes an inlay seat, a main C-shaped delivery pipe, a secondary C-shaped delivery pipe, a C-shaped butt joint pipe and a butt elbow pipe;

[0022] The main C-shaped delivery pipe and the auxiliary C-shaped delivery pipe are fixedly connected to the inlay seat;

[0023] One end of the main C-shaped delivery pipe is connected to one end of the auxiliary C-shaped delivery pipe through the C-shaped butt joint pipe;

[0024] The other end of the main C-shaped delivery pipe is connected to the other end of the secondary C-shaped delivery pipe through the butt elbow.

[0025] According to the battery tray described in the embodiment of the first aspect of the present invention, two groups of overheat protection mechanisms are provided, and the two groups of overheat protection mechanisms are respectively fixedly connected to the middle position of the front side wall and the middle position of the rear side wall of the fixing frame.

[0026] A new energy electric vehicle according to an embodiment of the second aspect of the present invention comprises: a battery tray as described in the embodiment of the first aspect of the present invention.

[0027] It is not difficult to understand that the new energy electric vehicle in the embodiment of the second aspect of the present invention has the technical effect of the battery tray in the embodiment of the first aspect described above, and therefore it will not be described in detail.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0030] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0031] Figure 2It is a top perspective schematic diagram of an embodiment of the present invention;

[0032] Figure 3 It is an isometric schematic diagram of a buffer protection mechanism in an embodiment of the present invention;

[0033] Figure 4 It is a left and right isometric schematic diagram of the buffer protection mechanism in an embodiment of the present invention;

[0034] Figure 5 is a three-dimensional schematic diagram of a buffer protection mechanism in an embodiment of the present invention;

[0035] Figure 6 It is a front view of an embodiment of the present invention.

[0036] Reference numerals:

[0037] Main fixing mechanism 1, fixing frame 101, base plate 102, support member 103, fixing seat 104, mounting position 105;

[0038] Buffer protection mechanism 2, fixed plate 201, fixed frame 202, ball slot seat 203, electromagnetic hydraulic cylinder 204, first rotating shaft seat 205, first two-way linkage rod 206, main rotating shaft seat 207, auxiliary two-way linkage rod 208, linkage frame 209, elastic component 210, rotating end block 211, docking plate 212, second linkage rotating shaft 213, first linkage rotating shaft 214;

[0039] Overheat protection mechanism 3, inlay seat 301, main C-shaped delivery pipe 302, auxiliary C-shaped delivery pipe 303, C-shaped butt joint pipe 304, butt joint elbow 305. DETAILED DESCRIPTION

[0040] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0041] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] In the description of the present invention, "several" means one or more, "more" means at least two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0043] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0044] Reference Figure 1 to Figure 6 The battery tray of the first embodiment of the present invention is applied to a battery module, and the battery tray includes a main fixing mechanism 1, a buffer protection mechanism 2 and an overheat protection mechanism 3.

[0045] The main fixing mechanism 1 includes a cavity for installing the battery and a base plate 102 for fixing. The cavity is arranged on the base plate 102; the buffer protection mechanism 2 is arranged on the base plate 102 around the periphery of the cavity, and is used to buffer and reduce shock to the cavity; the overheat protection mechanism 3 is arranged inside the cavity, and is used to dissipate heat from the cavity. The cavity is fixed in the car through the base plate 102, and is used to place the battery. The buffer protection mechanism 2 buffers and reduces shock to the cavity, effectively protecting the battery; further, by arranging the overheat protection mechanism 3 inside the cavity, an overheat protection function is provided for the battery, thereby increasing the battery life.

[0046] In some embodiments of the present invention, the main fixing mechanism 1 includes a fixing frame 101, a support member 103, a fixing seat 104 and a mounting position 105. The fixing frame 101 has a cavity. The fixing frame 101 is preferably a square thin-walled frame structure. The fixing frame 101 has an upward opening and is surrounded by the frame structure to form a cavity for installing the battery. The base plate 102 is arranged at the bottom of the fixing frame 101. The base plate 102 is used to connect the interior of the car and carry the fixing frame 101 and the buffer protection mechanism 2. A plurality of support members 103 are provided and arranged on the bottom surface of the fixing frame 101. The support member 103 is preferably a support bar. The fixing seat 104 is arranged on at least one of the corners on the inner side of the fixing frame 101 to limit the battery. The fixing seat 104 is preferably a fixed angle seat, and the fixed angle seat has two right-angled plates that fit the inner side of the fixing frame 101. The mounting position 105 is arranged on at least one side of the fixing frame 101, and the overheating protection structure is arranged on the mounting position 105. The mounting position 105 is preferably a mounting groove.

[0047] In some embodiments of the present invention, two ends of each support member 103 respectively abut against two side surfaces in the length direction of the fixed frame 101. Preferably, each support member 103 is configured as a support bar, which is arranged perpendicular to the length direction of the fixed frame 101. Each support member 103 is evenly arranged in sequence and spaced apart from each other along the length direction of the fixed frame 101. A hollow structure is formed by the support members 103 to achieve the dual effects of seismic isolation and heat dissipation.

[0048] In some embodiments of the present invention, the buffer protection mechanism 2 includes a fixed plate 201, a fixed frame 202, an electromagnetic hydraulic cylinder 204, a first rotating shaft seat 205, a first bidirectional linkage rod 206, a main rotating shaft seat 207, a secondary bidirectional linkage rod 208, a linkage frame 209, an elastic component 210, a rotating end block 211, a docking plate 212, a first linkage shaft 214 and a second linkage shaft 213.

[0049] The fixing plate 201 is fixedly arranged on the base plate 102, and the fixing plate 201 is used to carry the fixing frame 202. The fixing frame 202 is rotatably connected to the first rotating shaft seat 205 at the relative bottom end, and both ends of the first rotating shaft seat 205 are respectively rotatably connected to one end of the first two-way linkage rod 206. The fixing frame 202 is rotatably connected to the main rotating shaft seat 207 at the relative top end, and the electromagnetic hydraulic cylinder 204 is fixedly connected to the middle of the main rotating shaft seat 207, and both ends of the main rotating shaft seat 207 are respectively fixedly connected to one end of the secondary two-way linkage rod 208. One end of the elastic component 210 is fixedly connected to the relative bottom end of the electromagnetic hydraulic cylinder 204, and the relative top end of the electromagnetic hydraulic cylinder 204 is set as the output end, and the rotating end block 211 is set on the output end, and the other end of the elastic component 210 is fixedly connected to the rotating end block 211. The linkage frame 209 is rotatably connected to the rotating end block 211, the first linkage shaft 214 is rotatably connected to the top of the linkage frame 209, the second linkage shaft 213 is rotatably connected to the bottom of the linkage frame 209, the two ends of the first linkage shaft 214 are respectively fixedly connected to the other end of the secondary bidirectional linkage rod 208, and the two ends of the second linkage shaft 213 are respectively fixedly connected to the other end of the first bidirectional linkage rod 206. The linkage frame 209 is fixedly arranged on the docking plate 212, and the docking plate 212 is used to carry the cavity.

[0050] Through the targeted setting of the buffer protection mechanism 2, the elastic component 210 cooperates with the electromagnetic hydraulic cylinder 204 to form a damping buffer, so that the inertial force is buffered and eliminated and cannot reach the fixed frame 101, so that the battery installed inside the fixed frame 101 will not be affected by the inertial force.

[0051] In some embodiments of the present invention, the buffer protection mechanism 2 further includes a ball slot seat 203, the ball slot seat 203 is fixedly connected to the fixing frame 202, and the ball slot seat 203 is slidably connected to the bottom of the electromagnetic hydraulic cylinder 204 to support the electromagnetic hydraulic cylinder 204. Figures 3 to 5 The middle and lower part of the fixed frame 202 is rotatably connected to the first rotating shaft seat 205, and the middle and upper part of the fixed frame 202 is rotatably connected to the main rotating shaft seat 207. The fixed frame 202 has front and rear side walls, and also has left and right side walls. The space enclosed by them is used to fix the ball slot seat 203. The left and right side walls are used to auxiliary support the ball slot seat 203. The first rotating shaft seat 205 and the main rotating shaft seat 207 are respectively penetrated through the front and rear side walls.

[0052] In some embodiments of the present invention, the elastic component 210 is configured as a spring, and the spring is sleeved on the outer circumference of the electromagnetic hydraulic cylinder 204. By configuring the elastic component 210 as a spring, the bottom of the electromagnetic hydraulic cylinder 204 is configured on the ball slot seat 203, and one end of the spring is fixed to the middle and lower part of the electromagnetic hydraulic cylinder 204, the spatial arrangement of the structure can be significantly optimized, ensuring reliable energy dissipation and shock absorption while reducing the volume.

[0053] In some embodiments of the present invention, the cavity is arranged in a square shape, four groups of buffer protection mechanisms 2 are arranged, and each docking plate 212 is fixedly connected to the four corners of the cavity, respectively, to ensure a full range of buffer protection effects through a uniform arrangement.

[0054] In some embodiments of the present invention, the overheat protection mechanism 3 includes an inlay seat 301 , a main C-shaped delivery pipe 302 , a secondary C-shaped delivery pipe 303 , a C-shaped butt joint pipe 304 and a butt elbow 305 .

[0055] The main C-shaped delivery pipe 302 and the secondary C-shaped delivery pipe 303 are fixedly connected to the inlay seat 301. One end of the main C-shaped delivery pipe 302 is connected to one end of the secondary C-shaped delivery pipe 303 through a C-shaped butt joint pipe 304. The other end of the main C-shaped delivery pipe 302 is connected to the other end of the secondary C-shaped delivery pipe 303 through a butt joint elbow 305. Specifically, two groups of overheating protection mechanisms 3 are provided, and the two groups of overheating protection mechanisms 3 are respectively fixedly connected to the middle position of the front side wall and the middle position of the rear side wall of the fixed frame 101.

[0056] Through targeted design of the overheat protection mechanism 3, the main C-shaped delivery pipe 302 and the secondary C-shaped delivery pipe 303 form a group of flat and circulated pipelines for storing a certain amount of coolant, and the inner parts of the two groups of overheat protection mechanisms 3 directly contact the batteries fixed inside the fixed frame 101, while the outer parts extend out of the fixed frame 101 through the mounting position 105. When the battery operates for a long time and generates heat, the heat will be absorbed by the two groups of overheat protection mechanisms 3, and the two groups of overheat protection mechanisms 3 will then dissipate heat autonomously through the parts extending out of the fixed frame 101.

[0057] Reference Figure 1 to Figure 6The specific description of this battery tray includes: first, install the battery of the new energy vehicle into the main fixing mechanism 1, use the fixing seat 104 set inside the fixing frame 101 to fix the battery inside the fixing frame 101, and support it through multiple sets of support members 103 at the bottom of the fixing frame 101. Fix the base plate 102 in the car. When the vehicle passes through a bumpy route or the whole vehicle is transported, inertial force will be generated and transmitted to the base plate 102 fixed inside the car. The inertial force will make the base plate 102 swing with the car, and the movement of the base plate 102 will drive the buffer protection mechanism 2 fixed on the four sides to operate.

[0058] The fixed plate 201 of the buffer protection mechanism 2 will swing along because it is fixed on the base plate 102, and the electromagnetic hydraulic cylinder 204 rotatably installed inside the fixed frame 202 through the main rotating shaft seat 207 will start to operate and correspondingly retract the hydraulic output rod, and the rotating end block 211 installed at the output end of the electromagnetic hydraulic cylinder 204 will drive the rotatably installed linkage frame 209 to be retracted, and the movement of the linkage frame 209 and the two-way rotation of the installed secondary two-way linkage rod 208 and the first two-way linkage rod 206 make the linkage frame 209 only realize vertical movement, and the spring installed on the electromagnetic hydraulic cylinder 204 cooperates with the electromagnetic hydraulic cylinder 204 to form a damping buffer, so that the inertial force is buffered and eliminated and cannot reach the docking plate 212 of the linkage frame 209. Since the docking plate 212 is fixedly connected to the fixed frame 101, the battery installed inside the fixed frame 101 will not be affected by the inertial force, thereby providing effective protection for the battery during the startup of the new energy vehicle.

[0059] A set of mounting positions 105 are respectively provided on the front and rear sides of the fixing frame 101, and the overheat protection mechanisms 3 respectively installed in the two sets of mounting grooves provide overheat protection function for the battery. The inlay seat 301 of the overheat protection mechanism 3 is fixed inside the mounting position 105, and is used to install the main C-shaped delivery pipe 302, the secondary C-shaped delivery pipe 303, the C-shaped butt joint pipe 304 and the butt joint elbow 305. The main C-shaped delivery pipe 302 and the secondary C-shaped delivery pipe 303 are evenly laid on the inlay seat 301, and the right input end of the main C-shaped delivery pipe 302 is connected to the right output end of the secondary C-shaped delivery pipe 303 through the C-shaped butt joint pipe 304, and the right output end of the main C-shaped delivery pipe 302 is connected to the right input end of the secondary C-shaped delivery pipe 303 through the butt joint elbow 305, forming a set of flat and capable The pipes capable of circulating and transporting are used to store a certain amount of coolant, and the inner parts of the two sets of overheat protection mechanisms 3 directly contact the batteries fixed inside the fixed frame 101, while the outer parts extend out of the fixed frame 101 through the mounting position 105. When the batteries operate for a long time and generate heat, the heat will be absorbed by the two sets of overheat protection mechanisms 3, and the two sets of overheat protection mechanisms 3 will then dissipate heat autonomously through the parts extending out of the fixed frame 101, and cooperate with the multiple sets of support members 103 installed at the bottom of the fixed frame 101 to form a hollow ventilation structure, thereby providing overheat protection for the batteries and thereby increasing the service life of the batteries.

[0060] Reference Figure 1 to Figure 6 The new energy electric vehicle of the second embodiment of the present invention includes the battery tray of the first embodiment of the present invention, which can better protect the battery and solve the problem that the existing new energy vehicle battery tray cannot timely perform inertia protection and overheat protection on the battery.

[0061] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A battery tray, characterized in that: include: A main fixing mechanism, comprising a cavity for installing a battery and a base plate for fixing, wherein the cavity is arranged on the base plate; A buffer protection mechanism is arranged on the base plate around the periphery of the cavity and is used for buffering and absorbing shock of the cavity; as well as An overheat protection mechanism, arranged inside the cavity, for dissipating heat from the cavity; The buffer protection mechanism includes a fixed plate, a fixed frame, an electromagnetic hydraulic cylinder, a first rotating shaft seat, a first two-way linkage rod, a main rotating shaft seat, a secondary two-way linkage rod, a linkage frame, an elastic component, a rotating end block, a docking plate, a first linkage rotating shaft and a second linkage rotating shaft; The fixing plate is fixedly arranged on the base plate, and the fixing plate is used to carry the fixing frame; The relative bottom end of the fixed frame is rotatably connected to the first rotating shaft seat, and both ends of the first rotating shaft seat are respectively rotatably connected to one end of the first two-way linkage rod, and the relative top end of the fixed frame is rotatably connected to the main rotating shaft seat, the electromagnetic hydraulic cylinder is fixedly connected to the middle part of the main rotating shaft seat, and both ends of the main rotating shaft seat are respectively fixedly connected to one end of the secondary two-way linkage rod; One end of the elastic component is fixedly connected to the relative bottom end of the electromagnetic hydraulic cylinder, the relative top end of the electromagnetic hydraulic cylinder is set as an output end, the rotating end block is set on the output end, and the other end of the elastic component is fixedly connected to the rotating end block; The linkage frame is rotatably connected to the rotating end block, the first linkage shaft is rotatably connected to the opposite top end of the linkage frame, the second linkage shaft is rotatably connected to the opposite bottom end of the linkage frame, the two ends of the first linkage shaft are respectively fixedly connected to the other end of the secondary bidirectional linkage rod, and the two ends of the second linkage shaft are respectively fixedly connected to the other end of the first bidirectional linkage rod; The linkage frame is fixedly arranged on the docking plate, and the docking plate is used for supporting the cavity.

2. The battery tray according to claim 1, characterized in that: The main fixing mechanism includes a fixing frame, a support member, a fixing seat and a mounting position, the fixing frame has the cavity, the base plate is arranged at the bottom of the fixing frame, a plurality of support members are arranged and arranged on the bottom surface of the fixing frame, the fixing seat is arranged on at least one of the corners on the inner side of the fixing frame to limit the battery, the mounting position is arranged on at least one side surface of the fixing frame, and the overheating protection mechanism is arranged at the mounting position.

3. The battery tray according to claim 2, characterized in that: Two ends of each of the support members respectively abut against two side surfaces of the fixing frame in the length direction, and each of the support members is spaced apart from each other and arranged in sequence and uniformly along the length direction of the fixing frame.

4. The battery tray according to claim 1, characterized in that: The buffer protection mechanism also includes a ball slot seat, which is fixedly connected to the fixing frame and slidably connected to the bottom of the electromagnetic hydraulic cylinder for supporting the electromagnetic hydraulic cylinder.

5. The battery tray according to claim 4, characterized in that: The elastic component is configured as a spring, and the spring is sleeved on the outer circumference of the electromagnetic hydraulic cylinder.

6. The battery tray according to any one of claims 1 to 5, characterized in that: The cavity is arranged in a square shape, four groups of the buffer protection mechanisms are arranged, and each of the docking plates is fixedly connected to four corners of the cavity respectively.

7. The battery tray according to claim 1, characterized in that: The overheat protection mechanism includes an inlay seat, a main C-shaped delivery pipe, a secondary C-shaped delivery pipe, a C-shaped butt joint pipe and a butt elbow pipe; The main C-shaped delivery pipe and the auxiliary C-shaped delivery pipe are fixedly connected to the inlay seat; One end of the main C-shaped delivery pipe is connected to one end of the auxiliary C-shaped delivery pipe through the C-shaped butt joint pipe; The other end of the main C-shaped delivery pipe is connected to the other end of the secondary C-shaped delivery pipe through the butt elbow.

8. The battery tray according to claim 1 or 7, characterized in that: The overheat protection mechanism is provided in two groups, and the two groups of the overheat protection mechanism are respectively fixedly connected to the middle position of the front side wall and the middle position of the rear side wall of the fixing frame.

9. A new energy electric vehicle, characterized in that: include: A battery tray as claimed in any one of claims 1 to 8.

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