Battery module and electrically-driven two-wheeled vehicle

Abstract

The utility model relates to the technical field of energy storage devices, and discloses a battery module and an electrically-driven two-wheeled vehicle. The aluminum middle frame is hermetically connected with the lower cover through a first screw; the fixing frame is used for being fixedly connected with the battery cell; the fixing frame is fixedly connected with the lower cover through a second screw, and the fixing frame can slide into or slide out of the aluminum middle frame. According to the battery module and the electrically-driven two-wheeled vehicle, the battery cell in the aluminum middle frame can be quickly taken out.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage device technical field especially, relate to a kind of battery module and electric drive two-wheeled vehicle. BACKGROUND

[0002] With the development of new energy and the concept of environmental protection travel is constantly carried out, two-wheeled vehicle with battery module as power source becomes the choice of more and more people. With the wide application of electric drive two-wheeled vehicle, the requirement of battery module is also increasing, the size of battery module is larger and larger and the weight is heavier and heavier, the disassembly difficulty of battery module gradually increases, especially the aluminum middle frame of larger size greatly increases the disassembly difficulty of battery module in electric core.

[0003] Therefore, a battery module and electric drive two-wheeled vehicle need to be designed, which can facilitate the quick removal of electric core in aluminum middle frame.

[0004] The above information is given as background information only to assist in understanding the present disclosure, and does not determine or acknowledge whether any of the above content can be used as prior art with respect to the present disclosure. INVENTION CONTENTS

[0005] The utility model provides a kind of battery module and electric drive two-wheeled vehicle, which can facilitate the quick removal of electric core in aluminum middle frame.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A battery module comprises:

[0008] A lower cover;

[0009] An aluminum middle frame is sealingly connected to the lower cover by a first screw;

[0010] A fixing frame is used to fixedly connect with the electric core; the fixing frame is fixedly connected to the lower cover by a second screw, and the fixing frame can slide into or out of the aluminum middle frame along the center line of the aluminum middle frame.

[0011] Optionally, a first connecting stepped hole is provided on the lower cover;

[0012] The second screw is threadedly connected to the fixing frame through the first connecting stepped hole, and the first connecting stepped hole is filled with sealing glue.

[0013] Optionally, the lower cover is further provided with a positioning groove communicating with the first connecting stepped hole;

[0014] A foot pad is installed in the positioning groove, and the foot pad has an insertion column portion for extending into the first connecting stepped hole, and the outer periphery of the insertion column portion is provided with a friction ring for abutting against the inner wall of the first connecting stepped hole.

[0015] Optionally, the positioning groove is provided with an arc-shaped protrusion, and the foot pad is provided with an arc-shaped recess corresponding to the arc-shaped protrusion.

[0016] Optionally, the positioning groove is provided with a columnar protrusion, and the foot pad is provided with a columnar recess corresponding to the columnar protrusion.

[0017] The columnar protrusion and the arc-shaped protrusion are arranged at intervals.

[0018] Optionally, the fixing frame has a protruding part for being inserted into the aluminum middle frame, and the protruding part has a fitting surface.

[0019] When the protruding part is inserted into the aluminum middle frame, the fitting surface fits the inner wall surface of the aluminum middle frame.

[0020] Optionally, the protruding part is provided with a screw hole for connecting the second screw.

[0021] Optionally, the lower cover is provided with an annular sealing groove on a side close to the aluminum middle frame, and an annular sealing ring is mounted in the annular sealing groove, and the annular sealing ring avoids the first screw.

[0022] Optionally, the fixing frame is an insulating fireproof frame body.

[0023] An electrically-driven two-wheeled vehicle comprises the battery module.

[0024] Compared with the prior art, the battery module has the following beneficial effects:

[0025] The battery module and the electrically-driven two-wheeled vehicle have the following beneficial effects: the fixing frame is fixedly connected with the lower cover through the second screw, and the aluminum middle frame is fixedly connected with the lower cover through the first screw, so that the combination of the lower cover, the fixing frame and the electric core can be taken out by removing the first screw when the combination is disassembled, the fixing frame slides out of the aluminum middle frame at this time, and the electric core and the aluminum middle frame are completely separated.

[0026] The utility model discloses has other characteristics and advantages, these characteristics and advantages will be obvious from the drawing and subsequent specific embodiment incorporated in this article, or will be stated in detail in the drawing and subsequent specific embodiment incorporated in this article, these drawings and specific embodiment are used together for explaining the specific principle of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0028] Figure 1 is an explosion schematic diagram of the battery module provided by the embodiment of the present application;

[0029] Figure 2 is Figure 1 is an enlarged schematic diagram of the battery module at A;

[0030] Figure 3 is a cross-sectional structure schematic diagram of the battery module provided by the embodiment of the present application;

[0031] Figure 4 is a structure schematic diagram of the fixing frame provided by the embodiment of the present application.

[0032] The drawings are as follows: 1, lower cover; 11, first connection stepped hole; 12, positioning groove; 121, arc-shaped protrusion; 122, columnar protrusion; 2, aluminum middle frame; 21, first screw; 3, fixing frame; 301, protrusion part; 302, fitting surface; 303, screw hole; 31, second screw; 4, foot pad; 41, insertion column part; 42, friction ring; 5, annular sealing ring. DETAILED DESCRIPTION

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0034] In this paper, the term "embodiment" means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing at various positions in the specification does not necessarily refer to the same embodiment, and does not particularly limit the independence or association between other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, each technical feature mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0035] Unless otherwise defined, the meanings of technical terms used in the present application are the same as those commonly understood by one skilled in the art to which the present application belongs; the use of related terms herein is only for the purpose of describing specific embodiments of the present application, and is not intended to limit the present application.

[0036] In the description of the present application, the phrase "and / or" is a description of a logical relationship between objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases: A exists, B exists, and A and B exist at the same time. In addition, the character " / " herein generally represents that the associated objects before and after are a "or" logical relationship.

[0037] In the present application, phrases such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary and secondary, or order relationship between the entities or operations.

[0038] In the present application, the phrases "include", "contain", "have" or other similar expressions used in the sentence are intended to cover non-exclusive inclusion, and these expressions do not exclude the presence of other elements in the process, method or product including the described elements, so that the process, method or product including a series of elements can not only include those limited elements, but also include other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0039] As the same as the understanding in the "Guidelines for Examination", in the present application, the expressions "greater than", "less than", "exceed" and the like are understood as not including the number; the expressions "above", "below", "within" and the like are understood as including the number. In addition, in the description of the embodiments of the present application, the meaning of "multiple" is more than two (including two), and similar expressions related to "multiple" are also understood in this way, for example, "multiple groups", "multiple times" and the like, unless otherwise explicitly limited.

[0040] In the description of the embodiments of the present application, the spatial-related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or the drawings, and are only for the convenience of describing the specific embodiments of the present application or for the reader to understand, and are not intended to indicate or imply that the indicated device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0041] Unless otherwise defined, or limited by context, the terms used herein such as "mount", "connect", "connection", "fixed", "set", and the like, should be understood to be used in a broad sense. For example, "connection" can be fixed connection, or detachable connection, or integrated setting; it can be mechanical connection, or electrical connection, or communication connection; it can be direct connection, or indirect connection through intermediate medium; it can be internal communication of two elements, or interaction relationship between two elements. For those skilled in the art to which the present application belongs, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0042] Embodiment one

[0043] In view of the defects of the existing battery module, the applicant, based on rich practical experience and professional knowledge in designing and manufacturing such products for many years, and combined with the use of theory, actively researches and innovates, in order to create a technology that can solve the defects in the prior art, so that the battery module is more practical. After continuous research, design, and repeated trial of samples and improvement, the present utility model is finally created, which has practical value.

[0044] Please refer to Figures 1 to 4 The utility model embodiment provides a battery module, including lower cover 1, aluminium middle frame 2 and fixed frame 3.

[0045] Lower cover 1 is used for supporting fixed frame 3. Aluminium middle frame 2 is sealedly connected with lower cover 1 by first screw 21;Fixed frame 3 is used for fixedly connected with electric core;Fixed frame 3 is fixedly connected with lower cover 1 by second screw 31, and aluminium middle frame 2 surrounds electric core to protect electric core;Fixed frame 3 can slide into or slide out of aluminium middle frame 2. Generally, fixed frame 3 can slide along the center line of aluminium middle frame 2, so as to slide into or slide out of aluminium middle frame 2.

[0046] The battery module in the embodiment, fixed frame 3 is fixedly connected with lower cover 1 by second screw 31, and aluminium middle frame 2 is fixedly connected with lower cover by first screw 21, so that when disassembling, the combination of lower cover 1, fixed frame 3 and electric core can be taken out by removing first screw 21, so that electric core and aluminium middle frame are completely separated. In the embodiment, there is no direct connecting structure between aluminium middle frame and electric core, but only around electric core to protect electric core, so that when disassembling electric core, there is no need to take out heavy and large aluminium middle frame, which effectively improves the efficiency of disassembling electric core.

[0047] Optionally, the lower cover 1 is provided with a first connecting stepped hole 11; the second screw 31 is threadedly connected with the fixing frame 3 through the first connecting stepped hole 11, and the first connecting stepped hole 11 is filled with sealing glue. In this embodiment, after the second screw 31 is threadedly connected with the fixing frame 3 through the first connecting stepped hole 11, the sealing glue is injected into the first connecting stepped hole 11, the sealing glue seals the gap between the second screw 31 and the first connecting stepped hole 11, and water vapor can be prevented from entering the battery cell through the gap between the second screw 31 and the first connecting stepped hole 11, thereby improving the waterproof effect of the battery module.

[0048] Optionally, the lower cover 1 is further provided with a positioning groove 12 communicating with the first connecting stepped hole 11, and the four corners of the lower cover 1 are provided with the positioning groove 12. A foot pad 4 is installed in the positioning groove 12, and the foot pad 4 has an insertion column portion 41 for extending into the first connecting stepped hole 11, and the outer periphery of the insertion column portion 41 is provided with a friction ring 42 for abutting against the inner wall of the first connecting stepped hole 11. The foot pad 4 can buffer the impact force of the lower cover 1 against the ground or other plane, improve the safety of the battery module, reduce the possibility of damage of the battery cell, and improve the overall aesthetics of the battery. It should be further pointed out that the setting of the insertion column portion 41 and the friction ring 42 can effectively reduce the possibility of falling of the foot pad 4. The insertion column portion 41 actually has the function of a positioning column.

[0049] Optionally, the positioning groove 12 is provided with an arc-shaped protrusion 121, and the foot pad 4 is provided with an arc-shaped recess corresponding to the arc-shaped protrusion 121. The arc-shaped protrusion 121 can further improve the fixing stability of the foot pad 4, reduce the possibility of falling of the foot pad 4, and enable the foot pad 4 to be stably installed at the correct position.

[0050] Optionally, the positioning groove 12 is provided with a columnar protrusion 122, and the foot pad 4 is provided with a columnar recess corresponding to the columnar protrusion 122; the columnar protrusion 122 and the arc-shaped protrusion 121 are arranged at intervals. The columnar protrusion 122 cooperates with the arc-shaped protrusion 121 to reduce the possibility of falling of the foot pad 4 and enable the foot pad 4 to be installed at the correct position.

[0051] Optionally, the fixing frame 3 has a protruding portion 301 for being inserted into the aluminum middle frame 2, and the protruding portion 301 has an abutting surface 302; when the protruding portion 301 is inserted into the aluminum middle frame 2, the abutting surface 302 abuts against the inner wall surface of the aluminum middle frame 2. The abutting surface 302 abuts against the inner wall surface of the aluminum middle frame 2 to improve the positioning accuracy of the battery cell. It should be further pointed out that in the actual installation process, the fixing frame 3 is first inserted into the aluminum middle frame 2, and then the fixing frame 3 and the lower cover 1 are fixedly connected.

[0052] Optionally, the protruding portion 301 is provided with a screw hole 303 for connecting the second screw 31.

[0053] Optionally, as Figure 1The lower cover 1 is provided with an annular sealing groove near one side of the aluminum middle frame 2, an annular sealing ring 5 is installed in the annular sealing groove, and the annular sealing ring 5 avoids the first screw 21. The annular sealing ring 5 can improve the sealing effect between the lower cover 1 and the aluminum middle frame 2.

[0054] Optionally, the fixing frame 3 is an insulating fireproof frame body, which improves the safety of the battery module.

[0055] Embodiment heat

[0056] An electrically driven two-wheeled vehicle includes the battery module as described in any one of the embodiments.

[0057] The electrically driven two-wheeled vehicle can be an electric bicycle, an electric motorcycle, an electric toy car, an electric balance car, etc.

[0058] Finally, it should be noted that, although the above embodiments have been described in the specification and drawings of the present application, the patent protection scope of the present application should not be limited. Any equivalent structure or equivalent flow replacing or modifying the technical solutions of the above embodiments based on the essential concept of the present application, using the contents described in the specification and drawings of the present application, directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, etc., are all included in the patent protection scope of the present application.

Claims

1. A battery module, characterized by, It comprises: a lower cover (1); an aluminum middle frame (2) which is sealingly connected with the lower cover (1) through a first screw (21); a fixing frame (3) which is fixedly connected with the lower cover (1) through a second screw (31) and can slide into or out of the aluminum middle frame (2).

2. The battery module of claim 1, wherein, The lower cover (1) is provided with a first connecting stepped hole (11). The second screw (31) is threadedly connected with the fixing frame (3) through the first connecting stepped hole (11), and the first connecting stepped hole (11) is filled with sealing glue.

3. The battery module of claim 2, wherein, The lower cover (1) is further provided with a positioning groove (12) which communicates with the first connecting stepped hole (11). A foot pad (4) is installed in the positioning groove (12), and the foot pad (4) has an insertion column part (41) which is used to extend into the first connecting stepped hole (11), and the outer periphery of the insertion column part (41) is provided with a friction ring (42) which is used to abut against the inner wall of the first connecting stepped hole (11).

4. The battery module of claim 3, wherein, An arc-shaped protrusion (121) is arranged in the positioning groove (12), and the foot pad (4) is provided with an arc-shaped groove which corresponds to the arc-shaped protrusion (121).

5. The battery module of claim 4, wherein, A columnar protrusion (122) is arranged in the positioning groove (12), and the foot pad (4) is provided with a columnar groove which corresponds to the columnar protrusion (122). The columnar protrusion (122) and the arc-shaped protrusion (121) are arranged at intervals.

6. The battery module of claim 1, wherein, The fixing frame (3) has a protruding part (301) which is used to be inserted into the aluminum middle frame (2), and the protruding part (301) has an abutting surface (302). When the protruding part (301) is inserted into the aluminum middle frame (2), the abutting surface (302) abuts against the inner wall surface of the aluminum middle frame (2).

7. The battery module of claim 6, wherein, The protruding part (301) is provided with a screw hole (303) which is used to connect the second screw (31).

8. The battery module of claim 1, wherein, The lower cover (1) is provided with an annular sealing groove on the side which is close to the aluminum middle frame (2), and an annular sealing ring (5) is installed in the annular sealing groove, and the annular sealing ring (5) avoids the first screw (21).

9. The battery module of claim 1, wherein, The fixing frame (3) is an insulating fireproof frame body.

10. An electrically driven two-wheeled vehicle, characterized by The battery module comprises the battery module as claimed in any one of claims 1 to 9.

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