An electric vehicle battery installation structure

Abstract

The present invention discloses a mounting structure for an electric vehicle battery, comprising a frame and a battery housing. The frame defines a mounting cavity for mounting the battery housing. The frame is provided with a guide structure capable of guiding the battery housing when the battery housing is installed in the mounting cavity. The frame is provided with a rotating lock block capable of rotating and switching between a locked position and an unlocked position. When the rotating lock block is in the locked position, it abuts against the battery housing to restrict the battery housing from escaping from the mounting cavity. When the rotating lock block is rotated to the unlocked position, it separates from the battery housing. The rotating lock block is connected to a manual drive member capable of driving its rotation. A battery locking inclined surface is provided on the frame or the battery housing. The user holds the manual drive member and rotates the rotating lock block to switch the rotating lock block to the locked position or the unlocked position, thereby enabling the battery to be installed and removed without carrying additional tools.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicles, and in particular to an installation structure of an electric vehicle battery. Background Art

[0002] With society's growing emphasis on environmental protection and energy conservation, environmentally friendly and energy-saving products are gaining increasing attention. As a green, energy-saving, and emission-reducing means of transportation, electric vehicles are playing an increasingly important role in public transportation. Currently, electric vehicles are widely used by consumers as a daily means of transportation, and batteries are one of their key components.

[0003] Many batteries of traditional electric motorcycles and electric bicycles are fixed to the frame, and users cannot replace the batteries during use. In the absence of a charging environment and limited battery capacity, this seriously affects the user's normal driving mileage needs.

[0004] To address the above-mentioned problems, patent publication number CN 216942772 U discloses a mounting structure for convenient replacement of electric vehicle batteries. In this patent, the main vehicle body is provided with a movable bracket assembly consisting of two L-shaped movable single frames. The movable bracket assembly can be flipped open. When the movable bracket assembly is flipped open radially outward, the battery housing slides synchronously along the guide plate. With this design, the battery can be removed for replacement when necessary. This design also has the following problems: First, the movable bracket assembly is fixed to the main vehicle body by fasteners such as bolts and screws. Tools such as wrenches and screwdrivers are required to remove these fasteners before the movable bracket can be opened. If the user does not have tools, the battery cannot be removed for replacement; second, after the movable bracket assembly is opened, the battery slides down directly, which can easily cause the battery to be damaged. Summary of the Invention

[0005] In view of this, an object of the present invention is to provide an electric vehicle battery installation structure that is convenient for disassembly and replacement of the battery.

[0006] The technical solution adopted by the present invention to solve the technical problem is:

[0007] The battery pack is mounted on the frame and has a guide structure for guiding the battery pack when the battery pack is installed in the mounting cavity. The frame is provided with a rotating lock block that can be rotated and switched between a locked position and an unlocked position. When the rotating lock block is in the locked position, it abuts against the battery pack to restrict the battery pack from escaping from the mounting cavity. When the rotating lock block is rotated to the unlocked position, it is separated from the battery pack. The rotating lock block is connected to a manual drive member that can drive it to rotate. A battery lock inclined surface is provided on the frame or the battery pack. During the process of rotating the rotating lock block from the unlocked position to the locked position, the distance between the rotating lock block and the battery lock inclined surface gradually decreases. When the rotating lock block is in the locked position, the rotating lock block abuts against the battery lock inclined surface to restrict the rotation of the rotating lock block.

[0008] As a preferred solution of the present invention, a locking shell groove is provided on the outer side wall of the battery shell, and the battery shell is locked when the free end of the rotating locking block is rotated into the locking shell groove.

[0009] As a preferred solution of the present invention, a fixed seat is provided on the frame, a rotating lock block is hinged on the fixed seat, a torsion locating piece is provided on the fixed seat between the fixed seat and the rotating lock block, and the lock battery inclined surface is provided on the torsion locating piece.

[0010] As a preferred solution of the present invention, a first positioning structure is provided on the rotating lock block, and a second positioning structure that can cooperate with the first positioning structure is provided on the torque positioning piece. When the rotating lock block is rotated to the locking position, the first positioning structure and the second positioning structure cooperate with each other to position the rotating lock block.

[0011] As a preferred solution of the present invention, the first positioning structure is a positioning recess provided on the rotating locking block, and the second positioning structure is a positioning protrusion provided on the torsion positioning member and capable of being inserted into the positioning recess.

[0012] As a preferred solution of the present invention, a cylindrical boss is provided on the upper surface of the fixing seat, a step is formed around the cylindrical boss, and the torque positioning piece is annular and arranged around the cylindrical boss and fixed on the step.

[0013] As a preferred solution of the present invention, a clamping block is provided on the step, and the torque positioning piece is provided with a clamping groove that is clamped and fixed with the clamping block.

[0014] As a preferred solution of the present invention, the rotating locking block is hinged to the fixed seat through a bolt. The rotating locking block is also provided with a circular hole coaxial with the bolt. The cylindrical boss is arranged coaxially with the bolt, and the inner side wall of the circular hole is rotatably matched with the cylindrical boss.

[0015] As a preferred solution of the present invention, a nut engaged with the threaded end of the bolt is installed, and a detachable silicone pad is provided between the nut and the fixing seat.

[0016] As a preferred solution of the present invention, the guide structure includes a guide plate provided on the vehicle frame, and a slot provided on the battery housing and into which the guide plate can be inserted.

[0017] As a preferred solution of the present invention, a lock hole is provided on the guide plate, a lock rod and a lock head capable of driving the lock rod to move are provided on the battery shell, and the lock rod is inserted into or withdrawn from the lock hole when moving.

[0018] As a preferred solution of the present invention, the manual drive member is a handle integrally connected to the rotating locking block.

[0019] As a preferred solution of the present invention, a male power plug is provided on the vehicle frame, and a female power plug is provided on the battery shell. When the battery shell is installed in the installation cavity, the male power plug is connected to the female power plug.

[0020] The beneficial effects of the present invention are: 1. The user holds the manual drive part and rotates the rotating lock block to switch the rotating lock block to the locked position or the unlocked position. The battery shell can be locked or unlocked without carrying additional tools, which is convenient for disassembling and installing the battery; 2. During the process of rotating the rotating lock block from the unlocked position to the locked position, the fitting of the rotating lock block and the battery lock inclined surface becomes tighter and tighter; during the process of rotating the rotating lock block from the locked position to the unlocked position, the fitting of the rotating lock block and the battery lock inclined surface becomes looser and looser, which is in line with human force perception and is convenient for users to judge in which direction the rotating lock block is rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a perspective view of the present invention;

[0022] Figure 2 is an exploded view of the present invention;

[0023] Figure 3 Schematic diagram of the connection structure between the battery shell and the guide plate;

[0024] Figure 4 1 is a diagram showing the matching relationship between the rotating lock block and the battery case when the rotating lock block is in the locked position;

[0025] Figure 5 It is an exploded view of the installation structure of the rotating lock block. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0027] It should be noted that all directional indications in the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the descriptions of "preferred", "sub-preferred", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "preferred" or "sub-preferred" may explicitly or implicitly include at least one such feature.

[0028] Reference Figures 1 to 5 The present invention proposes an installation structure for an electric vehicle battery, including a frame 1 and a battery shell 2. The frame 1 is surrounded by an installation cavity 101 for installing the battery shell 2. The frame 1 is provided with a guide structure that can guide the battery shell 2 when the battery shell 2 is installed into the installation cavity 101. The frame 1 is provided with a rotating lock block 3 that can rotate and switch between a locked position and an unlocked position. When the rotating lock block 3 is in the locked position, it abuts against the battery shell 2 to restrict the battery shell 2 from escaping from the installation cavity 101. When the rotating lock block 3 is rotated to the unlocked position, it is separated from the battery shell 2. The rotating lock block 3 is connected to a manual driving member that can drive it to rotate. A battery locking inclined surface 411 is provided on the frame 1 or the battery shell 2.

[0029] By installing the battery cell and other related accessories in the battery shell 2, a battery can be formed.

[0030] The manual drive member mentioned above can be a handle 31 integrally connected to the rotating lock block 3, or can be an object such as a handwheel that can drive the rotating lock block 3 to rotate. Due to the presence of the battery lock inclined surface 411, the process of rotating the rotating lock block 3 from the unlocked position to the locked position is equivalent to rotating on the top of a spiral slope. During this process, the distance between the rotating lock block 3 and the battery lock inclined surface 411 gradually decreases, and the fit between the rotating lock block 3 and the battery lock inclined surface 411 becomes tighter and tighter. When the rotating lock block 3 is rotated to the locked position, the rotating lock block 3 abuts against the battery lock inclined surface 411. At this time, the two are pressed against each other, which can limit the rotation of the rotating lock block 3 toward the unlocked position. When the rotating lock block 3 is rotated from the locked position to the unlocked position, the distance between the rotating lock block 3 and the battery lock inclined surface 411 gradually increases, and the fit between the rotating lock block 3 and the battery lock inclined surface 411 becomes looser and looser. Such a design has the following advantages: 1. The user can rotate the rotating lock block 3 by holding the manual drive part to switch the rotating lock block 3 to the locked position or the unlocked position without carrying additional tools, and it is very convenient to lock and unlock the battery; 2. During the process of rotating the rotating lock block 3 from the unlocked position to the locked position, the fit between the rotating lock block 3 and the battery lock inclined surface 411 becomes tighter and tighter; during the process of rotating the rotating lock block 3 from the locked position to the unlocked position, the fit between the rotating lock block 3 and the battery lock inclined surface 411 becomes looser and looser, which is in line with people's force perception and is convenient for users to judge in which direction the rotating lock block 3 is rotating.

[0031] In a preferred embodiment of the present invention, a fixed seat 42 is provided on the frame 1, the rotating lock block 3 is hinged on the fixed seat 42, and a torque positioning member 41 is provided on the fixed seat 42 and located between the fixed seat 42 and the rotating lock block 3, and the battery lock inclined surface 411 is provided on the upper surface of the torque positioning member 41.

[0032] In the above solution, a cylindrical boss 421 is provided on the upper surface of the fixing seat 42, with a step formed around the cylindrical boss 421. The torque locator 41 is annular and arranged around the cylindrical boss 421 and fixed on the step. A clamping block 422 is provided on the step, and the torque locator 41 is provided with a clamping groove 413 that is fixedly engaged with the clamping block 422. When the rotating lock block 3 rotates from the unlocked position to the locked position, friction exists between the rotating lock block 3 and the torque locator 41. The engagement of the clamping groove 413 and the clamping block 422 to secure the torque locator 41 prevents the torque locator 41 from being subjected to friction and rotating with the rotating lock block 3.

[0033] In the above scheme, the rotating lock block 3 is hinged to the fixed seat 42 via a bolt 43. The rotating lock block 3 is also provided with a circular hole 302 coaxial with the bolt 43. The cylindrical boss 421 is arranged coaxially with the bolt 43, and the inner sidewall of the circular hole 302 rotates in engagement with the cylindrical boss 421. The threaded end of the bolt 43 is mounted with a nut 44 that engages with it, and a removable silicone pad 45 is provided between the nut 44 and the fixed seat 42. The dual rotational engagement between the rotating lock block 3 and the bolt 43, and between the rotating lock block 3 and the cylindrical boss 421, also helps to improve the rotational stability of the rotating lock block 3. The silicone pad 45 is used to adjust the tightness of the torque positioning member 41, making the use process smoother.

[0034] In the above solution, a first positioning structure is provided on the rotating lock block 3, and a second positioning structure capable of cooperating with the first positioning structure is provided on the torsion positioning member 41. When the rotating lock block 3 is rotated to the locked position, the first positioning structure and the second positioning structure cooperate in a concave-convex manner to position the rotating lock block 3. Preferably, the first positioning structure is a positioning recess 301 provided on the rotating lock block 3, and the second positioning structure is a positioning protrusion 412 provided on the torsion positioning member 41 and capable of being snapped into the positioning recess 301.

[0035] In some embodiments of the present invention, the battery lock inclined surface 411 may also be arranged in other ways, for example, the torque positioning member 41 is fixed to the battery shell 2 , and the battery lock inclined surface 411 is arranged on the upper surface of the torque positioning member 41 .

[0036] In a preferred embodiment of the present invention, a lock shell groove 21 is provided on the outer wall of the battery shell 2. When the free end of the rotating lock block 3 is rotated into the lock shell groove 21, it switches to a locking position. At this time, the rotating lock block 3 locks the battery shell 2 to prevent the battery shell 2 from escaping from the installation cavity 101.

[0037] In certain embodiments of the present invention, the locking housing groove 21 may be eliminated, and the rotating locking block 3 may be directly pressed against the upper surface of the battery housing 2 when in the locking position.

[0038] Reference Figure 2 and Figure 3 In a preferred embodiment of the present invention, the guide structure includes a guide plate 5 provided on the vehicle frame 1, and a slot 201 provided on the battery housing 2 into which the guide plate 5 is inserted. A male power connector 71 is provided on the vehicle frame 1, and a female power connector 72 is provided on the battery housing 2. When the battery housing 2 is installed in the mounting cavity 101, the male power connector 71 and the female power connector 72 are connected. Once connected, the electric vehicle can be powered.

[0039] In a preferred embodiment of the present invention, a lock hole 501 is added to the guide plate 5, and a lock rod 61 and a lock head 62 are added to the battery housing 2 to drive the lock rod 61. The lock rod 61 is inserted into or removed from the lock hole 501 during movement. The lock head 62 is an additional security lock for anti-theft. The lock head 62 can use the same key as the electric vehicle's power lock. By turning the key, the battery housing 2 and the guide plate 5 are locked or unlocked. After the lock rod 61 is removed from the lock hole 501, the rotating lock block 3 is rotated to the unlocked position, and the battery housing 2 can be removed from the mounting cavity 101 of the vehicle frame 1.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A mounting structure for an electric vehicle battery, comprising a vehicle frame (1) and a battery housing (2), wherein the vehicle frame (1) is provided with a mounting cavity (101) for mounting the battery housing (2), and a guide structure is provided on the vehicle frame (1) for guiding the battery housing (2) when the battery housing (2) is mounted in the mounting cavity (101), characterized in that: The frame (1) is provided with a rotating lock block (3) that can be rotated and switched between a locked position and an unlocked position. When the rotating lock block (3) is in the locked position, it abuts against the battery shell (2) to limit the battery shell (2) from escaping from the mounting cavity (101). When the rotating lock block (3) is rotated to the unlocked position, it separates from the battery shell (2). The rotating lock block (3) is connected to a manual drive member that can drive it to rotate. A battery lock inclined surface (411) is provided on the frame (1) or the battery shell (2). During the process of the rotating lock block (3) rotating from the unlocked position to the locked position, the distance between the rotating lock block (3) and the battery lock inclined surface (411) gradually decreases. When the rotating lock block (3) is in the locked position, the rotating lock block (3) abuts against the battery lock inclined surface (411) to limit the rotation of the rotating lock block (3); The frame (1) is provided with a fixing seat (42), the rotating lock block (3) is hinged on the fixing seat (42), the fixing seat (42) is provided with a torsion positioning member (41) located between the fixing seat (42) and the rotating lock block (3), and the battery lock inclined surface (411) is provided on the torsion positioning member (41); A cylindrical boss (421) is provided on the upper surface of the fixing seat (42), a step is formed around the cylindrical boss (421), and the torsion positioning member (41) is in a circular ring shape. The torsion positioning member (41) is arranged around the cylindrical boss (421) and is fixed on the step.

2. The electric vehicle battery installation structure according to claim 1, characterized in that: A locking housing groove (21) is provided on the outer side wall of the battery housing (2), and the battery housing (2) is locked when the free end of the rotating lock block (3) rotates into the locking housing groove (21).

3. The electric vehicle battery installation structure according to claim 1, characterized in that: The rotating lock block (3) is provided with a first positioning structure, and the torsion positioning member (41) is provided with a second positioning structure capable of cooperating with the first positioning structure. When the rotating lock block (3) is rotated to the locking position, the first positioning structure and the second positioning structure cooperate in a concave-convex manner to position the rotating lock block (3).

4. The electric vehicle battery installation structure according to claim 1, characterized in that: A clamping block (422) is provided on the step, and the torsion positioning member (41) is provided with a clamping groove (413) that is clamped and fixed to the clamping block (422).

5. The electric vehicle battery installation structure according to claim 1, characterized in that: The rotating locking block (3) is hinged to the fixing seat (42) via a bolt (43). A circular hole (302) coaxial with the bolt (43) is further provided on the rotating locking block (3). The cylindrical boss (421) is coaxially arranged with the bolt (43). The inner side wall of the circular hole (302) is rotatably engaged with the cylindrical boss (421).

6. The electric vehicle battery installation structure according to claim 5, characterized in that: The threaded end of the bolt (43) is mounted with a nut (44) engaged therewith, and a detachable silicone pad (45) is provided between the nut (44) and the fixing seat (42).

7. The electric vehicle battery installation structure according to claim 1, characterized in that: The guide structure comprises a guide plate (5) provided on the vehicle frame (1), and a slot (201) provided on the battery housing (2) and into which the guide plate (5) can be inserted.

8. The electric vehicle battery installation structure according to claim 7, characterized in that: The guide plate (5) is provided with a lock hole (501), and the battery housing (2) is provided with a lock rod (61) and a lock head (62) capable of driving the lock rod (61) to move. When the lock rod (61) moves, it is inserted into the lock hole (501) or withdrawn from the lock hole (501).

Images