Rear bottom protection plate of new energy automobile battery

Abstract

The utility model relates to a new energy automobile battery rear bottom protection plate, and belongs to the technical field of new energy automobile production. A buffer body mounting structure is arranged at the center position of the connecting outer frame, the buffer body mounting structure is provided with a hollow cavity with an opening in the bottom, a buffer body is mounted in the hollow cavity, the buffer body mounting structure comprises a sleeve body with openings in the two ends, and a bottom layer protection plate is arranged below the top cover protection plate; the sleeve body, the top cover protection plate and the bottom layer protection plate define a containing cavity for containing the buffering body, and the buffering body is installed in the containing cavity. The utility model has the following beneficial effects: when the bottom-layer protective plate is impacted, the buffer body is normally compressed, so that the battery pack can be prevented from being directly impacted by external force to be damaged, the service life of the battery pack is further prolonged, and the personal safety of a driver and passengers is protected; and when the external force disappears and the bottom-layer protection plate is not impacted, the bottom-layer protection plate can recover to the original state under the elastic property of the buffer body, and the battery pack is continuously protected.

Description

Technical Field

[0001] The utility model relates to a rear bottom guard plate of a new energy vehicle battery and belongs to the technical field of new energy vehicle production. Background Art

[0002] In recent years, with the development of the economy, battery technology has been widely used in various fields, especially in the field of new energy vehicles. At present, new energy vehicles have caused a huge impact on traditional fuel vehicles. As the core component of new energy vehicles, batteries play a vital role in the development of new energy vehicles.

[0003] After searching, the patent application with patent number CN202221072166.0 discloses a bottom guard plate assembly, a battery box, a battery and an electrical device. A bottom guard plate assembly includes a bottom guard plate, a bottom guard cover plate and a filling layer. The bottom guard cover plate is arranged on the first side of the bottom guard plate and defines a filling space with the bottom guard plate. The filling layer is arranged in the filling space, and the filling layer includes a buffer material and a heat storage material. The bottom guard plate assembly can prevent the battery cell from being damaged by bottom ball impact and external fire.

[0004] After searching, the patent application with patent number CN 202222583649.3 discloses a bottom guard plate, a battery box and a battery device, wherein the bottom guard plate is arranged at the bottom of the box body, and includes a first guard plate, a second guard plate and a buffer component, the first guard plate and the second guard plate are stacked and connected along a first direction, and a receiving space for receiving the buffer component is formed between the first guard plate and the second guard plate, the buffer component is arranged in the receiving space, and is respectively connected to the first guard plate and the second guard plate, and the buffer component is used to buffer the impact of the first guard plate and / or the second guard plate by deformation. The bottom guard plate is a multi-layer composite structure, including a buffer component, and the buffer component can buffer the impact of the first guard plate and / or the second guard plate by deformation,

[0005] Weaken the impact kinetic energy transmitted to the battery and reduce the damage to the battery.

[0006] Although the above patent can realize the protective function of the bottom guard plate, the current technical considerations are not comprehensive and have the following disadvantages: when the external force disappears and the bottom guard plate is not impacted, it cannot be restored to its original state and continues to protect the battery pack.

[0007] In order to solve one of the above problems, a new energy vehicle battery rear bottom guard plate is urgently needed. Utility Model Content

[0008] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is: how to ensure that when the bottom guard plate is hit, the buffer body is compressed normally, so as to avoid the battery pack being directly impacted by external force and damaged, thereby increasing the service life of the battery pack and protecting the personal safety of the driver and passengers; and when the external force disappears and the bottom guard plate is not hit, the elastic properties of the buffer body can restore it to its original state and continue to protect the battery pack. For this purpose, a bottom guard plate for the rear of the battery of a new energy vehicle is provided.

[0009] The rear bottom guard plate of the new energy vehicle battery described in the utility model is characterized by: it includes a connecting outer frame, a buffer body mounting structure is arranged at the center position of the connecting outer frame, the buffer body mounting structure has a hollow cavity with a bottom opening, and a buffer body is installed in the hollow cavity, the buffer body mounting structure includes a sleeve body with openings at both ends, the top end of the sleeve body is blocked by a top cover guard plate, the bottom end of the sleeve body is connected to the opening on the connecting outer frame, a bottom guard plate is arranged below the top cover guard plate, the sleeve body, the top cover guard plate and the bottom guard plate enclose a accommodating cavity for accommodating the buffer body, the buffer body is installed in the accommodating cavity, the top cover guard plate and the bottom guard plate are respectively attached to the upper and lower surfaces of the buffer body, and a guide component for guiding the lifting and lowering of the bottom guard plate is arranged on the sleeve body, so that the distance between the top cover guard plate and the bottom guard plate can be changed.

[0010] Preferably, the sleeve body, the top cover guard plate and the connecting outer frame are integrally formed.

[0011] Preferably, the sleeve body is formed by splicing four groups of side wall plates, and the center hole is a rectangular hole. The guide assembly includes multiple groups of parallel and spaced steel ropes. The two ends of the bottom guard plate are respectively vertically connected to the end vertical plate A and the end vertical plate B. The two ends of the steel rope respectively pass through the two groups of side wall plates oppositely arranged on the sleeve body and are connected to the corresponding side wall plates. The end vertical plate A is provided with multiple groups of vertical long holes A for the steel ropes to pass through, and the multiple groups of the steel ropes and the multiple groups of vertical long holes A correspond one to one respectively. The end vertical plate B is provided with multiple groups of vertical long holes B for the steel ropes to pass through, and the multiple groups of the steel ropes and the multiple groups of vertical long holes B correspond one to one respectively.

[0012] Preferably, both ends of the steel wire rope are connected to corresponding pressure rings after passing through corresponding side wall plates, and a compression spring is sleeved on the steel wire rope between the pressure ring and the sleeve body.

[0013] It ensures that when the bottom guard plate is impacted, the buffer body is compressed normally, and when the bottom guard plate is not impacted, it can return to its original state under the elastic properties of the buffer body.

[0014] Preferably, the end upright plate A and the end upright plate B respectively slide in cooperation with two sets of side wall plates arranged opposite to the sleeve body.

[0015] Preferably, the buffer body comprises a plurality of groups of rubber shock absorbing units arranged at intervals, the rubber shock absorbing units are provided with through holes for the steel wire rope to pass through, the through holes are penetrated by sleeves matched with the inner holes of the through holes, the steel wire ropes pass through the sleeves and slide in cooperation with the sleeves.

[0016] When the bottom guard plate is hit, the bottom guard plate compresses the buffer body, and the bottom guard plate approaches the top cover guard plate. The steel wire rope moves from the top of the vertical long hole A to the bottom of the vertical long hole A. The buffer body deforms to pull the steel wire rope, and the two ends of the steel wire rope apply force to the pressure ring to compress the compression spring. It is ensured that when the bottom guard plate is hit, the buffer body is compressed normally, and when the bottom guard plate is not hit, it can return to its original state under the elastic performance of the buffer body.

[0017] Preferably, a plurality of reinforcing plates are vertically connected to the bottom guard plate between the end upright plate A and the end upright plate B, the reinforcing plates are parallel to the end upright plate A and the end upright plate B, and the plurality of reinforcing plates are respectively distributed between two adjacent groups of rubber shock-absorbing units.

[0018] Preferably, an electric heating body is detachably mounted on the upper surface of the top cover guard plate. In a low temperature environment, the electric heating body is turned on to keep the batteries in the battery box warm.

[0019] Preferably, the electric heating body comprises an aluminum plate detachably mounted on the upper surface of the top cover guard plate, an electric heating rod is wrapped in the aluminum plate, and the aluminum plate is directly cast on the outer side of the electric heating rod with aluminum liquid to form an aluminum plate after cooling.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The utility model discloses a new energy vehicle battery rear bottom guard plate, in which the connecting outer frame is installed on the inner bottom of the battery box by bolts. When the bottom guard plate is hit, the buffer body is compressed normally, which can prevent the battery pack from being directly impacted by external forces and being damaged, thereby increasing the service life of the battery pack and protecting the personal safety of the driver and passengers. When the external force disappears and the bottom guard plate is not hit, the buffer body can restore to its original state due to its elastic properties and continue to protect the battery pack.

[0022] The rear bottom guard plate of the new energy vehicle battery described in the utility model, when the bottom guard plate is hit, the steel wire rope moves from the top of the vertical long hole A to the bottom of the vertical long hole A, and the buffer body is deformed to pull the steel wire rope. The two ends of the steel wire rope apply force to the pressure ring to compress the compression spring to ensure that when the bottom guard plate is hit, the buffer body is compressed normally, and when the bottom guard plate is not hit, it can be restored to its original state under the elastic performance of the buffer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0024] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the connection between the steel wire rope and the pressure ring of the utility model;

[0026] Figure 3 A three-dimensional diagram of the bottom guard plate;

[0027] Figure 4 is a side view of the buffer body;

[0028] Figure 5 The installation diagram of the utility model is shown in FIG. Figure 1 ;

[0029] Figure 6 The installation diagram of the utility model is shown in FIG. Figure 2 .

[0030] In the figure: 1, connecting outer frame 2, buffer body installation structure 2.1, sleeve body 2.2, top cover guard plate 2.3, bottom guard plate 3, buffer body 4, wire rope 5, end vertical plate A 6, end vertical plate B 7, vertical long hole A 8, through hole 9, reinforcement plate 10, vertical long hole C 11, sleeve 12, battery box 13, electric heating body 14, pressure ring 15, compression spring. DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with the accompanying drawings: The utility model is further illustrated below through specific embodiments, but is not intended to limit the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the invention should be included in the protection scope of the utility model.

[0032] Embodiment 1, as Figure 1-2As shown, the rear bottom guard plate of the battery of a new energy vehicle comprises a connecting outer frame 1, a buffer body mounting structure 2 is arranged at the center position of the connecting outer frame 1, the buffer body mounting structure 2 has a hollow cavity with a bottom opening, a buffer body 3 is installed in the hollow cavity, the buffer body mounting structure 2 comprises a sleeve body 2.1 with openings at both ends, the top end of the sleeve body 2.1 is blocked by a top cover guard plate 2.2, the bottom end of the sleeve body 2.1 is connected to the opening on the connecting outer frame 1, and the A bottom guard plate 2.3 is arranged below the top cover guard plate 2.2, and the sleeve body 2.1, the top cover guard plate 2.2 and the bottom guard plate 2.3 enclose a receiving cavity for accommodating the buffer body 3, and the buffer body 3 is installed in the receiving cavity, and the top cover guard plate 2.2 and the bottom guard plate 2.3 are respectively attached to the upper and lower surfaces of the buffer body 3, and a guide component for guiding the lifting and lowering of the bottom guard plate 2.3 is arranged on the sleeve body 2.1, so that the distance between the top cover guard plate 2.2 and the bottom guard plate 2.3 can be changed.

[0033] Reference Figure 5 The connecting outer frame 1 is installed on the inner bottom of the battery box 12 by bolts. When the bottom guard plate 2.3 is hit, the buffer body 3 is compressed normally, which can prevent the battery pack from being directly impacted by external force and being damaged, thereby increasing the service life of the battery pack and protecting the personal safety of the driver and passengers; and when the external force disappears and the bottom guard plate 2.3 is not hit, the buffer body 3 can restore to its original state due to its elastic properties and continue to protect the battery pack.

[0034] Embodiment 2, as Figure 1-4 As shown, the rear bottom guard plate of the battery of a new energy vehicle comprises a connecting outer frame 1, a buffer body mounting structure 2 is arranged at the center position of the connecting outer frame 1, the buffer body mounting structure 2 has a hollow cavity with a bottom opening, a buffer body 3 is installed in the hollow cavity, the buffer body mounting structure 2 comprises a sleeve body 2.1 with openings at both ends, the top end of the sleeve body 2.1 is blocked by a top cover guard plate 2.2, the bottom end of the sleeve body 2.1 is connected to the opening on the connecting outer frame 1, and the A bottom guard plate 2.3 is arranged below the top cover guard plate 2.2, and the sleeve body 2.1, the top cover guard plate 2.2 and the bottom guard plate 2.3 enclose a receiving cavity for accommodating the buffer body 3, and the buffer body 3 is installed in the receiving cavity, and the top cover guard plate 2.2 and the bottom guard plate 2.3 are respectively attached to the upper and lower surfaces of the buffer body 3, and a guide component for guiding the lifting and lowering of the bottom guard plate 2.3 is arranged on the sleeve body 2.1, so that the distance between the top cover guard plate 2.2 and the bottom guard plate 2.3 can be changed.

[0035] Furthermore, the sleeve body 2.1, the top cover guard plate 2.2, and the connecting outer frame 1 are integrally formed.

[0036] Furthermore, the sleeve body 2.1 is formed by splicing four groups of side wall plates, and the center hole thereof is a rectangular hole. The guide assembly includes multiple groups of parallel and spaced steel wire ropes 4. The two ends of the bottom guard plate 2.3 are respectively vertically connected to the end vertical plate A5 and the end vertical plate B6. The two ends of the steel wire rope 4 respectively pass through the two groups of side wall plates oppositely arranged on the sleeve body 2.1, and are connected to the corresponding side wall plates. The end vertical plate A5 is provided with multiple groups of vertical long holes A7 for the steel wire rope 4 to pass through, and the multiple groups of the steel wire ropes 4 and the multiple groups of vertical long holes A7 correspond to each other one by one. The end vertical plate B6 is provided with multiple groups of vertical long holes B for the steel wire rope 4 to pass through, and the multiple groups of the steel wire ropes 4 and the multiple groups of vertical long holes B correspond to each other one by one.

[0037] Furthermore, both ends of the steel wire rope 4 penetrate through the corresponding side wall plates and are respectively connected to the corresponding pressing rings 14 , and a compression spring 15 is sleeved on the steel wire rope 4 between the pressing ring 14 and the sleeve body 2 . 1 .

[0038] It is ensured that when the bottom guard plate 2.3 is impacted, the buffer body 3 is compressed normally, and when the bottom guard plate 2.3 is not impacted, it can restore to its original state under the elastic performance of the buffer body 3.

[0039] Furthermore, the end upright plate A5 and the end upright plate B6 respectively slide in cooperation with two sets of side wall plates arranged opposite to the sleeve body 2.1.

[0040] Furthermore, the buffer body 3 includes a plurality of groups of rubber shock-absorbing units arranged at intervals, and the rubber shock-absorbing units are provided with through holes 8 for the steel wire rope 4 to pass through. A sleeve 11 matching the inner hole of the through hole 8 is arranged through the through hole 8, and the steel wire rope 4 passes through the sleeve 11 and slides in cooperation with the sleeve 11.

[0041] When the bottom guard plate 2.3 is hit, the bottom guard plate 2.3 compresses the buffer body 3, the bottom guard plate 2.3 approaches the top cover guard plate 2.2, the steel wire rope 4 moves from the top of the vertical long hole A7 to the bottom of the vertical long hole A7, the buffer body 3 deforms to pull the steel wire rope 4, and the two ends of the steel wire rope 4 apply force to the pressure ring 14 to compress the compression spring 15. It is ensured that when the bottom guard plate 2.3 is hit, the buffer body 3 is compressed normally, and when the bottom guard plate 2.3 is not hit, it can restore to its original state under the elastic performance of the buffer body 3.

[0042] Furthermore, a plurality of reinforcing plates 9 are vertically connected to the bottom guard plate 2.3 between the end upright plate A5 and the end upright plate B6. The reinforcing plates 9 are parallel to the end upright plate A5 and the end upright plate B6. The plurality of reinforcing plates 9 are respectively distributed between two adjacent groups of rubber shock-absorbing units.

[0043] Reference Figure 6The difference between the embodiment 3 and the embodiment 2 is that the upper surface of the top cover guard plate 2.2 is detachably mounted with an electric heating body 13. In a low temperature environment, the electric heating body 13 is turned on to keep the batteries in the battery box warm.

[0044] Furthermore, the electric heating body comprises an aluminum plate detachably mounted on the upper surface of the top cover guard plate 2.2, wherein an electric heating rod is wrapped in the aluminum plate, and the aluminum plate is directly cast on the outer side of the electric heating rod by using aluminum liquid, and is formed into an aluminum plate after cooling.

[0045] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the present utility model is defined by the attached claims and their equivalents.

[0046] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A rear bottom guard plate for a new energy vehicle battery, characterized in that: It includes a connecting outer frame, a buffer body mounting structure is arranged at the center position of the connecting outer frame, the buffer body mounting structure has a hollow cavity with an opening at the bottom, a buffer body is installed in the hollow cavity, the buffer body mounting structure includes a sleeve body with openings at both ends, the top end of the sleeve body is blocked by a top cover guard plate, the bottom end of the sleeve body is connected to the opening on the connecting outer frame, a bottom cover guard plate is arranged below the top cover guard plate, the sleeve body, the top cover guard plate and the bottom cover guard plate enclose a accommodating cavity for accommodating the buffer body, the buffer body is installed in the accommodating cavity, the top cover guard plate and the bottom cover guard plate are respectively attached to the upper and lower surfaces of the buffer body, and a guide component for guiding the lifting and lowering of the bottom cover guard plate is arranged on the sleeve body, so that the distance between the top cover guard plate and the bottom cover guard plate can be changed.

2. The rear bottom guard plate of the new energy vehicle battery according to claim 1 is characterized in that: The sleeve body, the top cover guard plate and the connecting outer frame are integrally formed.

3. The rear bottom guard plate of the new energy vehicle battery according to claim 2 is characterized in that: The sleeve body is formed by splicing four groups of side wall plates, and the center hole is a rectangular hole. The guide assembly includes multiple groups of parallel and spaced steel ropes. The two ends of the bottom guard plate are respectively vertically connected with end vertical plates A and end vertical plates B. The two ends of the steel rope respectively pass through two groups of side wall plates oppositely arranged on the sleeve body and are connected to the corresponding side wall plates. The end vertical plates A are provided with multiple groups of vertical long holes A for the steel ropes to pass through, and the multiple groups of the steel ropes and the multiple groups of vertical long holes A correspond one to one respectively. The end vertical plates B are provided with multiple groups of vertical long holes B for the steel ropes to pass through, and the multiple groups of the steel ropes and the multiple groups of vertical long holes B correspond one to one respectively.

4. The rear bottom guard plate of the new energy vehicle battery according to claim 3 is characterized in that: The two ends of the steel wire rope are respectively connected with the corresponding pressure rings after passing through the corresponding side wall plates, and a compression spring is sleeved on the steel wire rope between the pressure ring and the sleeve body.

5. The rear bottom guard plate of the new energy vehicle battery according to claim 4 is characterized in that: The end upright plate A and the end upright plate B respectively cooperate and slide with two sets of side wall plates arranged opposite to the sleeve body.

6. The rear bottom guard plate of the new energy vehicle battery according to claim 5 is characterized in that: The buffer body comprises a plurality of rubber shock absorbing units arranged at intervals, the rubber shock absorbing units are provided with through holes for the steel wire rope to pass through, the through holes are penetrated by sleeves matched with the inner holes of the through holes, the steel wire ropes pass through the sleeves and slide in cooperation with the sleeves.

7. The rear bottom guard plate of the new energy vehicle battery according to claim 6 is characterized in that: A plurality of reinforcing plates are vertically connected to the bottom guard plate between the end upright plate A and the end upright plate B. The reinforcing plates are parallel to the end upright plate A and the end upright plate B. The plurality of reinforcing plates are respectively distributed between two adjacent groups of rubber shock-absorbing units.

8. The rear bottom guard plate of the new energy vehicle battery according to claim 7 is characterized in that: An electric heating body is detachably mounted on the upper surface of the top cover guard plate.

9. The rear bottom guard plate of the new energy vehicle battery according to claim 8, characterized in that: The electric heating body comprises an aluminum plate detachably mounted on the upper surface of the top cover guard plate, wherein an electric heating rod is wrapped in the aluminum plate, and the aluminum plate is directly cast on the outer side of the electric heating rod by aluminum liquid, and the aluminum plate is formed after cooling.

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