Fixing mechanism for electric vehicle battery installation

Abstract

The invention discloses a fixing mechanism for electric vehicle battery installation. The fixing mechanism comprises a cylinder body structure, a guide rail structure, a spring structure, a lock hook structure and a driving structure used for pushing the guide rail structure to move downwards. The guide rail structure is movably arranged in the cylinder body structure, the spring structure is arranged in the cylinder body structure and provides upward acting force for the guide rail structure, the inner side of the latch hook structure is matched with the negative angle of the guide rail structure, and a latch hook body used for fixing a battery is arranged at the lower end of the latch hook structure and extends out of the lower end of the cylinder body structure. The connecting strength of a single connecting structure is increased, and the number of connecting pieces can be reduced; the battery can be locked or loosened through air pressure or oil pressure at the same time, so that the time required for mounting and dismounting the power battery is greatly shortened, and the mounting and dismounting efficiency of the battery is improved; the problems that after bolt connection is used for a long time, pretightening force is attenuated, and bolts are loosened are solved. The fixing mechanism is stable and reliable, and ensures that the battery is not loosened after being installed.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle battery installation, in particular to a fixing mechanism for electric vehicle battery installation. Background Art

[0002] Power batteries are a very important component of electric vehicles. With the rapid growth of electric vehicle production and sales, the rapid disassembly and assembly of batteries has become a technical problem that needs to be solved urgently.

[0003] Traditional vehicle body power battery mounting structures are generally fixed to the vehicle body frame through bolt connections, which generally require 12-18 bolts for connection. Installing and removing the power battery takes a long time, which is very inconvenient for rapid replacement of the power battery. At the same time, the bolt fixing structure has the risk of loosening.

[0004] For example, patent CN108749548A discloses a new energy vehicle battery pack assembly and a new energy vehicle, in which the battery pack assembly includes an upper shell, a lower shell and a battery module; the inner sides of the upper shell and the lower shell are respectively provided with mutually symmetrical frame structures; the battery module is fixedly arranged in the frame structures on the inner sides of the upper shell and the lower shell; the outer sides of the upper shell and the lower shell are respectively provided with relatively symmetrical mounting parts, and the mounting parts are provided with bolt mounting holes, which are fixedly installed by bolt structures; it is not conducive to rapid disassembly of the battery, and there is a risk of loosening and failure of fixation. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the present invention provides a fixing mechanism for installing an electric vehicle battery, which can be quickly locked and disassembled and is stable and reliable.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] The fixing mechanism for installing an electric vehicle battery comprises a cylinder structure, a guide rail structure, a spring structure, a lock hook structure and a driving structure for pushing the guide rail structure to move downward; the guide rail structure is movably arranged in the cylinder structure, the spring structure is arranged in the cylinder structure to provide an upward force to the guide rail structure, the inner side of the lock hook structure cooperates with the guide rail structure at a negative angle, the lower end of the lock hook structure is provided with a lock hook body for fixing the battery, and the lock hook body extends from the lower end of the cylinder structure.

[0008] Further or preferred:

[0009] A cylinder cover structure is fixed to the lower end of the cylinder structure, and a through hole for the lower ends of the guide rail structure and the lock hook structure to extend out is provided at the center of the cylinder cover structure.

[0010] A threaded structure for fixing to a vehicle body is provided on the outer edge of the cylinder structure.

[0011] The driving structure is an electric propulsion structure arranged on the top of the cylinder structure.

[0012] The driving structure is an air or oil driven structure arranged on the top of the cylinder structure. The top of the guide rail structure is a piston structure that cooperates with the inside of the cylinder structure. A driving cavity is formed between the piston structure and the top of the cylinder structure. The top of the cylinder structure is provided with a pipeline connected to the air pump / oil pump of the vehicle body.

[0013] The lower end of the lock hook body is a group of lock hook clips arranged at circumferential intervals.

[0014] The spring structure is arranged between the piston structure and the bottom of the cylinder structure.

[0015] The upper portion of the guide rail structure is a piston structure, and the lower end of the guide rail structure is a cone structure.

[0016] The bottom of the conical structure is provided with a bottom support structure for supporting the bottom end of the lock hook clip.

[0017] A hollow cylindrical structure is provided at the lower part of the piston structure. The center of the cylindrical structure is connected to the upper end of the conical structure through an inner connecting rod. A cavity with a smaller top and a larger bottom is formed between the inner wall of the cylindrical structure and the inner connecting rod. The upper end of the locking hook structure is located in the cavity.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] The fixing mechanism for installing electric vehicle batteries has a reasonable structural design, which increases the connection strength of a single connection structure and can reduce the number of connecting parts. The battery can be locked or loosened simultaneously by air pressure or oil pressure, which greatly reduces the time required for installing and disassembling the power battery and improves the efficiency of battery installation and removal. The problem of pre-tightening force attenuation and bolt loosening after long-term use of bolt connections is solved. The fixing mechanism is stable and reliable, ensuring that the battery will not loosen after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following is a brief description of the contents and symbols in the drawings of this specification:

[0021] Figure 1 This is an external schematic diagram of the fixing mechanism of the present invention.

[0022] Figure 2 It is a cross-sectional schematic diagram of the fixing mechanism of the present invention.

[0023] In the picture:

[0024] 100. Fixed structure assembly; 101. Lock hook structure; 102. Cylinder structure; 103. Cylinder head structure; 104. Spring structure; 105. Guide rail structure; 106. Air pipe / oil pipe structure. DETAILED DESCRIPTION

[0025] Although the present invention is shown and described herein with reference to specific embodiments, it is not intended that the present invention be limited to the details shown. Rather, various modifications may be made in the details within the scope and range of equivalents of the claims without departing from the present invention. In the accompanying drawings, the same reference numerals refer to the same elements.

[0026] Various terms are used throughout this disclosure to describe the physical shape or arrangement of features. Many of these terms are used to describe features that conform to a cylindrical or generally cylindrical geometry with the feature as the radius and a central axis perpendicular to the radius. Unless a different meaning is specified, the terms are given the following meanings. The terms "longitudinal," "longitudinal," "axial," and "axially" refer to a direction, dimension, or orientation that is parallel to the central axis. The terms "radial" and "radially" refer to a direction, dimension, or orientation that is perpendicular to the central axis. The terms "inward" and "inwardly" refer to a direction, dimension, or orientation extending in a radial direction toward the central axis. The terms "outward" and "outwardly" refer to a direction, dimension, or orientation extending in a radial direction away from the central axis.

[0027] In the specification, relative terms such as "horizontal," "vertical," "upward," "downward," "top," and "bottom," and their derivatives (e.g., "horizontal," "downward," "upward," etc.) should be interpreted as referring to the direction being described or shown in the drawings being discussed. These relative terms are for convenience of description and are generally not intended to require a particular orientation.

[0028] The specific implementation of the present invention will be further explained in detail below through description of embodiments with reference to the accompanying drawings.

[0029] like Figure 1 and Figure 2 As shown, the fixing mechanism for installing an electric vehicle battery is a fixing structure assembly 100 that can be quickly locked and opened.

[0030] The fixing structure assembly of the present invention is different from the traditional bolt fixing structure. It adopts a driving structure to achieve rapid locking and opening; it simplifies the process, saves installation and disassembly time, fixes stably and reliably, and avoids the loosening problem of traditional bolt connections.

[0031] The fixing mechanism for installing an electric vehicle battery includes a cylinder structure 102, a guide rail structure 105, a spring structure 104, a lock hook structure 101, and a driving structure for pushing the guide rail structure to move downward; the guide rail structure can move up and down and is arranged in the cylinder structure, the spring structure is arranged in the cylinder structure to provide an upward force to the guide rail structure, and the upward force of the spring structure ensures that the lock hook structure will not be loosened when locked; the inner side of the lock hook structure is matched with the guide rail structure at a negative angle, and the lower end of the lock hook structure is provided with a lock hook body for fixing the battery, and the lock hook body extends from the lower end of the cylinder structure.

[0032] A threaded structure for fixing to the vehicle body is provided on the outer edge of the cylinder structure, and the fixing structure is easily connected to the vehicle body; if a connecting sleeve structure is provided on the vehicle body, the upper end of the connecting sleeve structure is open, and the bottom of the connecting sleeve is provided with a bottom hole for the lower end of the guide rail structure and the lower end of the lock hook structure to extend and fix the battery, and an internal threaded structure is provided on the inner wall of the connecting sleeve for cooperating with the threaded structure on the outer edge of the cylinder body; further, the threaded structure is located on the upper outer edge of the cylinder body, and a protruding limiting convex ring is provided on the lower outer edge of the cylinder body, and a support is formed by the limiting convex ring cooperating with the edge of the bottom hole, so the structure is stable and reliable.

[0033] The cylinder structure may be provided with a cylinder cover structure 103 at the bottom or top; preferably, a cylinder cover structure is fixed to the lower end of the cylinder structure, and the cylinder cover structure is installed in the lower end of the cylinder structure through internal and external thread structures, which is convenient for the installation of internal components; a through hole is provided at the center of the cylinder cover structure for the lower ends of the guide rail structure and the lock hook structure to extend out.

[0034] The driving structure is an electric push structure arranged on the top of the cylinder structure. The electric push structure can adopt an electric push rod. The electric push rod is fixed on the top of the cylinder and connected to the upper end of the guide rail structure. The guide rail structure is pushed downward by the electric push rod to realize rapid unlocking of the lock hook structure.

[0035] Alternatively, the driving structure is an air or oil driven structure arranged on the top of the cylinder structure; an air or oil driven structure is preferred; the top of the guide rail structure is a piston structure that cooperates with the inside of the cylinder structure, and a driving cavity is formed between the piston structure and the top of the cylinder structure. An air pipe / oil pipe structure 106 connected to the air pump / oil pump of the vehicle body is provided on the top of the cylinder structure; the guide rail is controlled to move up and down.

[0036] The spring structure is arranged between the piston structure and the bottom of the cylinder structure; preferably, the spring structure is a coil spring, and the coil spring is in a compressed state in the cylinder; the driving structure drives the guide rail structure to move downward, and the lock hook structure retracts to achieve unlocking; then, the upward force of the spring structure causes the guide rail structure to move upward, and the inclined surface at the lower end of the guide rail structure drives the lock hook structure to move outward to achieve rapid locking.

[0037] The lower end of the lock hook body is a group of lock hook clips arranged at circumferential intervals; a group of lock hook clips realize synchronous locking and retraction unlocking through the action of the lower end of the guide rail structure, and the structure is stable and reliable.

[0038] The upper part of the guide rail structure is a piston structure, and the lower end of the guide rail structure is a conical structure. The conical structure is a vertebral structure with a small upper part and a large lower part. The inner side of the lower end of the lock hook body cooperates with the negative angle of the outer edge of the vertebral structure to realize the up and down movement of the guide rail structure, which is converted into left and right movement of the lower end of the lock hook body.

[0039] The bottom of the conical structure is provided with a bottom support structure for supporting the bottom end of the lock hook clip; the guide rail structure moves upward under the action of the spring, driving a group of lock hook clips to move outward to achieve locking. When it is in the extreme position, the bottom end of the lock hook clip contacts the bottom support structure, and is supported by the bottom support structure, so the structure is stable and reliable.

[0040] A hollow cylindrical structure is provided at the lower part of the piston structure. The center of the cylindrical structure is connected to the upper end of the conical structure through an inner connecting rod. A cavity with a smaller top and a larger bottom is formed between the inner wall of the cylindrical structure and the inner connecting rod. The upper end of the lock hook structure is located in the cavity. When the guide rail structure moves downward, the lower end of the guide rail structure has no force on the lower end of the lock hook structure body. The upper cavity structure will drive the lock hook structure to move inward to achieve quick unlocking.

[0041] Furthermore, the inner wall of the cylindrical structure is a conical cavity structure that is thin at the bottom and thick at the top. The outer edge of the upper end of the locking hook structure contacts the inner wall of the cylindrical structure. When the guide rail structure moves downward, the inner wall of the cylindrical structure will directly drive the locking hook structure to move.

[0042] The fixing structure of the present invention can be quickly locked and opened. There is no need to tighten or loosen bolts one by one. Instead, the battery can be locked or loosened simultaneously by air pressure or oil pressure, which greatly improves the efficiency of battery installation and removal. At the same time, due to the undercut structure at the matching position of the guide rail and the lower part of the lock hook, it can be ensured that the battery will not loosen after installation.

[0043] The various fastening structural materials of the present invention can be high-strength steel, whose main components include elements such as carbon, silicon, manganese, sulfur, phosphorus, chromium, nickel, molybdenum, and copper. Carbon is a key element in enhancing the strength of high-strength steel, while silicon helps improve the steel's strength and wear resistance. The addition of manganese can improve the steel's strength and toughness while also enhancing its corrosion resistance. The sulfur and phosphorus contents should be controlled within certain ranges to avoid negatively impacting the steel's performance. The addition of elements such as chromium, nickel, molybdenum, and copper can improve the corrosion and wear resistance of high-strength steel while also enhancing its oxidation resistance.

[0044] The fast-locking and opening fixed structure of the present invention is assembled from a lock hook, a cylinder body, a cylinder head, a spring, a guide rail, and an air / oil pipe. The guide rail and cylinder head restrict the opening and closing movement of the lock hook. The space between the upper portion of the guide rail and the cylinder body, called the cylinder space, is connected to the vehicle body's air / oil pump via an air / oil pipe, controlling the vertical movement of the guide rail, which translates into left-right movement of the lock hook. The spring provides an upward force, ensuring that the guide rail is in its highest position in its natural state, thereby locking the lock hook.

[0045] The lock hook and the lower part of the guide rail have a barbed hook structure with a negative angle, which ensures that the lock hook is in a locked state when locked. Together with the upward force of the spring, it ensures that the lock hook will not loosen when locked, ensuring that the battery can be reliably installed on the vehicle body.

[0046] The fixing mechanism for installing an electric vehicle battery of the present invention has a reasonable structural design, which increases the connection strength of a single connection structure and can reduce the number of connecting parts; the battery can be locked or loosened simultaneously by air pressure or oil pressure, which greatly reduces the time required for installing and disassembling the power battery and improves the installation and removal efficiency of the battery; it solves the problem of pre-tightening force attenuation and bolt loosening after long-term use of the bolt connection; the fixing mechanism is stable and reliable, ensuring that the battery will not loosen after installation.

[0047] The above is only an illustration of a preferred embodiment of the present invention. The above technical features can be arbitrarily combined to form multiple embodiments of the present invention.

[0048] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A fixing mechanism for installing an electric vehicle battery, characterized in that: It includes a cylinder structure, a guide rail structure, a spring structure, a lock hook structure and a driving structure for pushing the guide rail structure to move downward; the guide rail structure is movably arranged in the cylinder structure, the spring structure is arranged in the cylinder structure to provide an upward force to the guide rail structure, the inner side of the lock hook structure is matched with the guide rail structure at a negative angle, and the lower end of the lock hook structure is provided with a lock hook body for fixing the battery, and the lock hook body extends from the lower end of the cylinder structure.

2. The fixing mechanism for installing an electric vehicle battery as claimed in claim 1, characterized in that: A cylinder cover structure is fixed to the lower end of the cylinder structure, and a through hole for the lower ends of the guide rail structure and the lock hook structure to extend out is provided at the center of the cylinder cover structure.

3. The fixing mechanism for installing an electric vehicle battery as claimed in claim 1, characterized in that: A threaded structure for fixing to a vehicle body is provided on the outer edge of the cylinder structure.

4. The fixing mechanism for installing an electric vehicle battery as claimed in claim 1, characterized in that: The driving structure is an electric propulsion structure arranged on the top of the cylinder structure.

5. The fixing mechanism for installing an electric vehicle battery as claimed in claim 1, characterized in that: The driving structure is an air or oil driven structure arranged on the top of the cylinder structure. The top of the guide rail structure is a piston structure that cooperates with the inside of the cylinder structure. A driving cavity is formed between the piston structure and the top of the cylinder structure. The top of the cylinder structure is provided with a pipeline connected to the air pump / oil pump of the vehicle body.

6. The fixing mechanism for installing an electric vehicle battery as claimed in claim 2, characterized in that: The lower end of the lock hook body is a group of lock hook clips arranged at circumferential intervals.

7. The fixing mechanism for installing an electric vehicle battery as claimed in claim 5, characterized in that: The spring structure is arranged between the piston structure and the bottom of the cylinder structure.

8. The fixing mechanism for installing an electric vehicle battery as claimed in claim 6, characterized in that: The upper portion of the guide rail structure is a piston structure, and the lower end of the guide rail structure is a cone structure.

9. The fixing mechanism for installing an electric vehicle battery as claimed in claim 8, characterized in that: The bottom of the conical structure is provided with a bottom support structure for supporting the bottom end of the lock hook clip.

10. The fixing mechanism for installing an electric vehicle battery as claimed in claim 8, characterized in that: A hollow cylindrical structure is provided at the lower part of the piston structure. The center of the cylindrical structure is connected to the upper end of the conical structure through an inner connecting rod. A cavity with a smaller top and a larger bottom is formed between the inner wall of the cylindrical structure and the inner connecting rod. The upper end of the locking hook structure is located in the cavity.

Images