Vehicle body battery mounting structure and electric vehicle
By designing the battery mounting structure on the vehicle body and adopting a battery compartment and cover with a rotatable connection and locking mechanism, the problem of complex disassembly of traditional electric vehicle battery boxes has been solved, realizing convenient external charging and maintenance of batteries, and improving the ease of operation and safety of electric vehicles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-03-10
AI Technical Summary
The traditional method of fixing the battery box and cover of electric vehicles is complicated and requires special tools to disassemble, resulting in low efficiency of external charging, replacement or maintenance of the battery.
Design a vehicle body battery mounting structure, including a vehicle body bracket, a battery compartment and a cover plate. The battery compartment can be detached and installed in a receiving window, and the cover plate can be rotated open.
It improves the efficiency of external battery charging, replacement, or maintenance, enhances ease of operation, safety, and structural strength, and reduces maintenance costs.
Smart Images

Figure CN223982609U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of electric vehicle battery installation technology, and in particular to a vehicle body battery installation structure and an electric vehicle including the structure. Specifically, it includes a detachable battery compartment design, a convenient opening and closing mechanism for the cover, and an optimized lock protection scheme, which is suitable for modular installation scenarios of battery compartments in two-wheeled / three-wheeled electric vehicles. Background Technology
[0002] Traditional electric vehicle batteries are usually installed under the vehicle chassis, which is the most common layout. This lowers the vehicle's center of gravity, improves handling and stability, and saves interior space. In addition, the battery's location facilitates wiring for electrical components in the front and rear of the vehicle, and the cover on top of the battery can also be used as a foot pedal.
[0003] Traditional battery boxes and battery covers are usually fixed with bolts. However, this structure is not only complicated to install, but the battery compartment cover is also mostly an integral closed structure. Disassembly requires special tools, and removing the battery for external charging, replacement or repair is inefficient. Utility Model Content
[0004] This application provides a vehicle battery mounting structure, including a vehicle frame, a battery compartment, a cover, and a handle. The bottom of the vehicle frame has a receiving window for detachable installation of the battery compartment, and the top of the battery compartment has an installation window, which is hollow to accommodate the battery. The cover covers the installation window, with one end rotatably connected to the vehicle frame and the other end locked to the installation window. The handle is detachably mounted on the top of one end of the cover, allowing the user to open the cover by rotating it around the rotatable end. Disassembly requires no special tools, enabling efficient removal of the battery for external charging, replacement, or repair.
[0005] An embodiment of this application provides a vehicle battery mounting structure, comprising:
[0006] The vehicle frame has a storage window at the bottom;
[0007] The battery compartment is detachably installed within the accommodating window, and an installation window is provided at the top; the interior of the battery compartment is hollow to accommodate the battery.
[0008] A cover plate covers the mounting window, with one end of the cover plate rotatably connected to the vehicle body bracket and the other end locked to one side of the mounting window;
[0009] A handle is detachably mounted on the top of one end of the cover plate; when one end of the cover plate is unlocked, the user can open the cover plate around the other end of the cover plate using the handle.
[0010] Furthermore, as a more preferred embodiment of this utility model, the handle component includes:
[0011] A connecting plate is provided for detachable connection with the cover plate; the connecting plate is provided with lock mounting holes.
[0012] A handle is provided on the top of the connecting plate;
[0013] A lock is provided in the lock head mounting hole; a barb is provided on one side of the mounting window, and the locking end of the lock extends to the barb and is snapped together with the barb.
[0014] Furthermore, as a more preferred embodiment of this utility model, the handle is U-shaped, with its opening facing downwards, and is disposed on the connecting plate or integrally formed on the connecting plate; the handle is inclined, with the inclination direction facing the front of the vehicle body support;
[0015] The lock head mounting holes are located between the U-shaped openings of the handle; the cover plate has through holes corresponding to the lock head mounting holes, so that the latch end of the lock can pass through the through holes.
[0016] Furthermore, as a more preferred embodiment of this utility model, a limiting groove is provided on one side of the barb portion. The opening direction of the limiting groove is arranged along the longitudinal direction of the vehicle body bracket. The position of the limiting groove corresponds to the position of the mounting hole, so that the locking end of the lock can be inserted along the opening direction of the limiting groove, and the locking end of the lock can be rotated to engage with the inner wall of the barb portion to form a locking state.
[0017] Furthermore, as a more preferred embodiment of this utility model, one end of the cover plate is provided with at least one hinge connected to the vehicle body bracket;
[0018] The top of the cover plate is provided with an anti-slip pad, which is adapted to the surface of the cover plate;
[0019] One end of the anti-slip pad is provided with at least one groove cover, which is adapted to at least a portion of the at least one hinge and covers at least a portion of the at least one hinge.
[0020] Furthermore, as a more preferred embodiment of this utility model, it also includes:
[0021] A ring-shaped sealing gasket is disposed between the top surface of the mounting window and the cover plate.
[0022] Furthermore, as a more preferred embodiment of this utility model,
[0023] The battery compartment includes:
[0024] The housing is equipped with a charging port and at least one cable outlet.
[0025] A charging plug is detachably mounted on the charging installation port and is used for electrical connection with the battery inside the compartment.
[0026] At least one rubber plug ring is installed at the at least one cable port.
[0027] Furthermore, as a more preferred embodiment of this utility model, positioning strips are respectively provided on both sides of the bottom of the cover plate. The positioning strips are used to insert into both sides of the installation window along the length direction of the cover plate to limit the movement of the cover plate in the lateral direction.
[0028] Furthermore, as a more preferred embodiment of this utility model, at least one pre-tightening pad is provided on each of the inner walls of the two sides of the battery compartment. The pre-tightening pad is inclined so that when the battery is inserted, the bottom of the at least one pre-tightening pad narrows, pre-tightening the bottom of the battery.
[0029] Based on the same inventive concept, this utility model also provides an electric vehicle that facilitates external charging, battery replacement, or battery repair, comprising:
[0030] As described above, the vehicle body battery mounting structure;
[0031] The bottom of the vehicle body bracket of the vehicle body battery mounting structure is provided with a hollow area.
[0032] The folding support legs are detachably mounted at the bottom of the battery compartment of the vehicle battery mounting structure; and the folding support legs can pass through the bottom of the hollow area and be supported on the ground. Attached Figure Description
[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0034] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the vehicle battery mounting structure in this embodiment.
[0035] Figure 2 This is a three-dimensional structural diagram of the vehicle battery mounting structure in this embodiment.
[0036] Figure 3 This is a three-dimensional view of the vehicle battery mounting structure in this embodiment, taken from another angle.
[0037] Figure 4 This is a schematic diagram of the lock structure in this embodiment.
[0038] Figure 5This is a schematic diagram of the overall structure of the electric vehicle in this embodiment.
[0039] Figure label:
[0040] Body bracket related components
[0041] 1-Body frame, 11-Accommodation window, 12-Steel pipe, 13-Front panel, 121-Hollow area.
[0042] Battery compartment related components
[0043] 2-Battery compartment, 21-Installation window, 211-Barb, 212-Limiting groove, 22-Compartment body, 23-Charging plug, 24-Rubber plug ring, 25-Pre-tightening gasket.
[0044] Cover plate related components
[0045] 3-Cover plate, 31-Hinge, 32-Through hole, 33-Positioning strip, 34-Anti-slip pad, 341-Slot cover.
[0046] Handle components and locks
[0047] 4-Handle component, 41-Connecting plate, 411-Lock mounting hole, 42-Handle component, 43-Lock, 431-Mechanical rotary lock, 432-Insertion and removal key, 433-Rubber plug cover, 434-Iron sheet.
[0048] Auxiliary components
[0049] 5-Ring sealing gasket.
[0050] Overall structure of electric vehicles
[0051] 100 - Battery mounting structure for vehicle body; 200 - Electric vehicle; 210 - Folding feet. Detailed Implementation
[0052] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0053] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.
[0054] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.
[0056] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.
[0057] Example
[0058] This embodiment aims to address the shortcomings of existing technologies where the conventional method of fixing the battery compartment 2 and battery cover 3 typically uses bolts. This method is complex to install, and the battery compartment 2 and cover 3 are often integral, closed structures requiring specialized tools for disassembly, resulting in low efficiency for external charging, replacement, or repair. Therefore, referring to Figures 1-5, this embodiment provides a vehicle body battery mounting structure 100, including a vehicle body bracket 1, a battery compartment 2, a cover 3, and a handle component 4. The bottom of the vehicle body bracket 1 has a receiving window 11 for detachably mounting the battery compartment 2. The top of the battery compartment 2 has a mounting window 21, which is hollow inside to accommodate the battery. The cover 3 covers the mounting window 21. One end of the vehicle body bracket 1 is rotatably connected, and the other end is locked to the mounting window 21. The handle component 4 is detachably mounted on the top of one end of the cover 3, allowing the user to open the cover 3 by rotating the handle around the rotatable end. Disassembly requires no specialized tools, and external charging, replacement, or repair of the battery is highly efficient.
[0059] Referring to Figures 1-3, a vehicle battery mounting structure 100 includes a vehicle body bracket 1, a battery compartment 2, a cover plate 3, and a handle component 4.
[0060] Referring to Figures 2-3, the bottom of the vehicle frame 1 is provided with a receiving window 11. For example, the vehicle frame 1 is composed of multiple steel pipes 12 welded together, with a rectangular receiving window 11 formed at the bottom in the middle. After the battery compartment 2 is pushed into place, it is fixed by screwing in two quick-release bolts from the steel pipes 12 at the bottom of the frame. In some embodiments, the bolt heads are embedded in the countersunk holes of the vehicle frame 1 to avoid protrusions affecting passability.
[0061] Referring to Figures 2-3, the battery compartment 2 is detachably installed inside the accommodating window 11, and an installation window 21 is provided at the top. The interior of the battery compartment 2 is hollow and is used to accommodate the battery. For example, the end of the cover plate 3 near the rear of the vehicle is connected to the vehicle body bracket 1 by two sets of stainless steel hinges 31. The rotation axis of the hinges 31 is parallel to the transverse axis of the vehicle body, ensuring that the cover plate 3 can be lifted up to a 90° opening angle.
[0062] Referring to Figure 2-3, cover plate 3 covers the mounting window 21, and one end of cover plate 3 is rotatably connected to the vehicle body bracket 1, and the other end is locked to one side of the mounting window 21.
[0063] Referring to Figures 2-3, the handle component 4 is detachably mounted on the top of one end of the cover plate 3. When one end of the cover plate 3 is unlocked, the user can open the cover plate 3 around the other end of the cover plate 3 using the handle component 4. In some embodiments, the handle component 4 includes: a connecting plate 41, a handle component 42, and a lock 43. The connecting plate 41 is detachably connected to the cover plate 3; the connecting plate 41 has a lock head mounting hole 411; the handle component 42 is located on the top of the connecting plate 41; the lock 43 is located in the lock head mounting hole 411; a barb portion 211 is provided on one side of the mounting window 21, and the latching end of the lock 43 extends to the barb portion 211 and engages with it. Exemplarily, the lock 43 is fixed by clamping the two ends of the lock head mounting hole 411 with double nuts.
[0064] Referring to Figures 2-3, the handle 42 is U-shaped, with its opening facing downwards, and is either integrally formed on the connecting plate 41 or on the connecting plate 41. The handle 42 is tilted, with the tilt direction facing the front of the vehicle body support 1. For example, the connecting plate 41 is fixed to the top of the cover plate 3 by four countersunk screws. The U-shaped handle 42 has its opening facing downwards, with a tilt angle of 15°, which is approximately the same as the tilt angle of the front baffle 13 of the vehicle body support 1. The inside of the handle is covered with a silicone anti-slip layer to improve grip comfort.
[0065] Referring to Figures 2-3, in some embodiments, a limiting groove 212 is provided on one side of the barb portion 211. The opening direction of the limiting groove 212 is arranged along the longitudinal direction of the vehicle body bracket 1. The position of the limiting groove 212 corresponds to the position of the mounting hole 411, so that the locking end of the lock 43 can be inserted along the opening direction of the limiting groove 212, and the locking end of the lock 43 is rotated to engage with the inner wall of the barb portion 211 to form a locking state.
[0066] Referring to Figure 4, exemplarily, the lock 43 can be an existing mechanical knob lock 431, equipped with a compatible pull-out key 432. One side of the mechanical knob lock 431 is equipped with a rubber plug flip cover 433, whose latching end is a metal piece 434 perpendicular to the axial direction. The lock 43 is embedded in the lock head mounting hole 411 of the connecting plate 41. The latching end passes through the through hole of the cover plate 3 and inserts into the barb portion 211 of the battery compartment 2. Rotating the lock 43 to 90° allows the latching end to engage with the limiting groove 212 of the barb portion 211, achieving locking.
[0067] Referring to 1 and 2, the lock head mounting hole 411 is located between the U-shaped openings of the handle 42; the cover plate 3 is provided with a through hole corresponding to the lock head mounting hole 411 so that the latch end of the lock 43 can pass through the through hole.
[0068] Referring to 1 and 2, an anti-slip pad 34 is provided on the top of the cover plate 3, and the anti-slip pad 34 is adapted to the surface of the cover plate 3; for example, the anti-slip pad 34 is attached to the surface of the cover plate 3 by an adhesive, and the surface of the anti-slip pad 34 is evenly distributed with anti-slip texture.
[0069] Referring to Figures 1 and 2, one end of the anti-slip pad 34 is provided with at least one groove cover 341, which is adapted to at least a portion of at least one hinge 31, and the groove cover 341 covers at least a portion of at least one hinge 31. For example, half of the hinge 31 connected to the cover plate 3 is covered by the groove cover 341.
[0070] Referring to Figures 2 and 3, in some embodiments, an annular sealing gasket 5 is also included, disposed between the top surface of the mounting window 21 and the cover plate 3. Exemplarily, it is made of rubber with a thickness of 3 mm, and is annularly fitted to the top edge of the mounting window 21. When the cover plate 3 is closed, it is compressed by the pre-tightening force of the latch to achieve waterproofing and dustproofing.
[0071] Referring to Figure 3, in some embodiments, the battery compartment 2 includes: a compartment body 22, a charging plug 23, and at least one rubber plug ring 24. The compartment body 22 is provided with a charging mounting port and at least one cable tray opening; the at least one rubber plug ring 24 is installed at at least one cable tray opening. A silicone rubber plug ring 24 is installed at the cable tray opening, the inner diameter of the plug being 1 mm smaller than the outer diameter of the cable, achieving a seal through an interference fit.
[0072] Referring to Figure 3, the charging plug 23 is detachably mounted on the charging installation port and is used for electrical connection with the battery inside the compartment 22; for example, the charging plug 23 can be fixed to the compartment 22 by bolts or fasteners. The charging plug 23 is equipped with a rubber flip cover.
[0073] Referring to Figure 3, in some embodiments, positioning strips 33 are respectively provided on both sides of the bottom of the cover plate 3. The positioning strips 33 are used to insert into both sides of the mounting window 21 along the length direction of the cover plate 3 to limit the movement of the cover plate 3 in the lateral direction. For example, a T-shaped aluminum alloy positioning strip 33 is provided on each side of the bottom of the cover plate 3, which is inserted into the groove wall on both sides of the mounting window 21 to limit the lateral displacement of the cover plate 3.
[0074] Referring to Figure 2, in some embodiments, at least one pre-tightening pad 25 is provided on each of the inner walls of the battery compartment 2. The pre-tightening pad 25 is inclined so that the bottom of at least one pre-tightening pad 25 narrows when the battery is inserted, thus pre-tightening the bottom of the battery. For example, each of the inner walls of the battery compartment 2 is provided with two sets of elastic pre-tightening pads 25 made of nylon + TPE composite material, with an inclination angle of 30°. When the battery is inserted, the bottom of the pad is compressed and narrowed, and the resulting pre-tightening force suppresses battery shaking.
[0075] Referring to 1 and 5, this embodiment also provides an electric vehicle 200, including: a vehicle body battery mounting structure 100 as described above and a folding support leg 210; the bottom of the vehicle body bracket 1 of the vehicle body battery mounting structure 100 is provided with a hollow area 121.
[0076] The folding support leg 210 is detachably mounted at the bottom of the battery compartment 2 of the vehicle battery mounting structure 100; and the folding support leg 210 can pass through the bottom of the hollow area 121 to support the ground. The folding support leg 210 is hinged to the bottom of the battery compartment 2 via a pivot, and when unfolded, it forms an L-shape to support the ground, and when folded, it fits against the bottom surface of the battery compartment 2. When removing the battery, the unfolded support leg passes through the hollow area 121 of the vehicle frame 1 to touch the ground, forming a stable triangular support to prevent the vehicle from tipping over.
[0077] Referring to 1-5, this embodiment achieves the following significant effects through the above solution:
[0078] 1. Improved ease of use:
[0079] The handle component 4 is tilted towards the front of the vehicle, which conforms to the human gripping habit. It can be unlocked and the cover 3 can be lifted by pressing down with one hand.
[0080] The cover plate 3 rotates around the hinge 31 to open and close, avoiding the risk of losing parts due to complete disassembly.
[0081] 2. Enhanced security and reliability:
[0082] The lock 43 is hidden inside the U-shaped opening of the handle, and a protective cover is added to the outside to effectively prevent the user's feet from scratching or tripping over it.
[0083] 3. Structural strength optimization:
[0084] The handle is integrally formed or rigidly connected to the connecting plate 41 to distribute the opening and closing stress;
[0085] The elastic preload pad 25 presses against the bottom of the battery to reduce the impact of driving vibration on the battery.
[0086] 4. Reduced maintenance costs:
[0087] The battery compartment 2 can be completely removed from the receiving window 11 of the vehicle frame 1 for easy batch battery replacement. Alternatively, the compartment 22 can be cleaned.
[0088] Rubber plug rings seal the cable connector, extending the service life of the cable and interface.
[0089] The electronic devices provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A vehicle body battery mounting structure characterized by comprising: The body support is provided with a containing window at the bottom; The battery compartment is detachably installed in the containing window and provided with an installation window at the top; the inside of the battery compartment is hollow for containing the battery; The cover plate covers the installation window and is rotatably connected to the body support at one end and lockingly connected to one side of the installation window at the other end; The handle component is detachably provided at the top of one end of the cover plate; in the unlocked state, the user can open the cover plate around the other end of the cover plate by the handle component. The handle component comprises:
2. The vehicle body battery mounting structure according to claim 1, characterized by The connecting plate is used for detachable connection with the cover plate; the connecting plate is provided with a lock head mounting hole; The handle is provided at the top of the connecting plate; The lock is provided in the lock head mounting hole; one side of the installation window is provided with a barb portion, and the locking end of the lock extends to the barb portion and is buckled with the barb portion. The handle is U-shaped, and the opening is downwardly provided on or integrally formed on the connecting plate; the handle is obliquely arranged, and the oblique direction is towards the head of the body support; 3. The vehicle body battery mounting structure according to claim 2, characterized by The lock head mounting hole is arranged between the U-shaped openings of the handle; the cover plate is provided with a through hole corresponding to the lock head mounting hole, so that the locking end of the lock can pass through the through hole. One side of the barb portion is provided with a limiting groove, and the opening direction of the limiting groove is arranged along the longitudinal direction of the body support; the position of the limiting groove corresponds to the position of the mounting hole, so that the locking end of the lock can be inserted along the opening direction of the limiting groove, and the locking end of the lock is buckled into the inner wall of the barb portion to form a clamping position.
4. The vehicle body battery mounting structure according to claim 2, characterized by One end of the cover plate is provided with at least one hinge connected to the body support; 5. The vehicle body battery mounting structure according to claim 1, characterized by The top of the cover plate is provided with a non-slip pad matched with the surface of the cover plate; One end of the non-slip pad is provided with at least one slot cover matched with at least a part of the at least one hinge, and the at least one slot cover covers at least a part of the at least one hinge. Further comprising:
6. The vehicle body battery mounting structure according to claim 2, characterized by A ring-shaped sealing gasket is arranged between the top surface of the installation window and the cover plate.
7. The body battery mounting structure according to claim 1, wherein The battery compartment comprises: The body is provided with a charging installation port and at least one wire outlet; The charging plug is detachably arranged on the charging installation port and used for electrical connection with the battery in the body; At least one rubber plug ring is installed in the at least one wire outlet. The bottom of the cover plate is provided with a positioning clamping strip on both sides, which is used for inserting into both sides of the installation window along the length direction of the cover plate to limit the movement of the cover plate in the lateral direction.
8. The vehicle body battery mounting structure according to claim 1, characterized by At least one pre-tightening gasket is arranged on the inner wall of both sides of the battery compartment, and the pre-tightening gasket is obliquely arranged so that the bottom of the at least one pre-tightening gasket is narrowed when the battery is put in, and the bottom of the battery is pre-tightened.
9. The vehicle body battery mounting structure according to claim 1, characterized by 10. An electric vehicle, characterized by comprising: The vehicle body battery mounting structure according to any one of claims 1 to 9; The vehicle body battery mounting structure is provided with a hollow region at the bottom of the vehicle body support; The folding legs are detachably arranged at the bottom of the battery compartment of the vehicle body battery mounting structure, and the folding legs can be supported on the ground through the bottom of the hollow region.