Battery quick-changing mechanism and electric vehicle

Abstract

The utility model relates to the technical field of electric vehicles which can be used for unmanned distribution vehicles, in particular to a battery quick-changing mechanism and an electric vehicle. The battery quick-changing mechanism comprises a battery pack, a battery pack connecting part, a telescopic piece and a first plugging piece, and a containing groove is formed in the top of the battery pack; a connecting hole is formed in the bottom of the battery pack connecting part, and a first mounting hole is formed in the side part of the battery pack connecting part; the telescopic part comprises a fixing part and a telescopic part, the fixing part is arranged in the containing groove, the telescopic part can stretch out and retract relative to the fixing part, a first insertion and extraction hole is formed in the telescopic part, the telescopic part can stretch into the connecting hole when stretching out, and when the telescopic part stretches into the connecting hole, the first insertion and extraction hole is aligned with the first mounting hole; the first plugging piece is arranged in the first mounting hole, and the plugging end of the first plugging piece can extend into the connecting hole or retract from the connecting hole. When the battery pack is replaced, a tool is not needed, only the first plugging piece needs to be manually plugged, the operation is simple, and the replacement efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles and can be used for unmanned delivery vehicles, in particular to a battery quick-change mechanism and an electric vehicle. Background Art

[0002] Unmanned delivery vehicles can realize unmanned delivery of express delivery, greatly reducing labor costs. The battery structure of unmanned delivery vehicles has a large amount of power and a long charging time. In order to save time, the battery structure is generally replaced quickly instead of charging the battery structure, that is, the original battery structure with insufficient power in the vehicle is removed and a new pre-charged battery structure is installed. In the prior art, the battery structure of the unmanned delivery vehicle is fixed by structures such as card slots and fasteners. Tools are required for replacement, and the replacement process is cumbersome and the replacement efficiency is low. Utility Model Content

[0003] The utility model aims to provide a battery quick-change mechanism and an electric vehicle, which do not require tools when replacing a battery pack, but only require manual plugging and unplugging of a first plug-in component, thereby achieving simple operation and high replacement efficiency.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A battery quick-change mechanism, comprising:

[0006] A battery pack having a receiving slot disposed on the top thereof;

[0007] A battery pack connection part, which is arranged on the vehicle body, wherein a connection hole is arranged at the bottom of the battery pack connection part, and a first mounting hole connected to the connection hole is arranged at the side of the battery pack connection part;

[0008] A telescopic member, comprising a fixed portion and a telescopic portion, wherein the fixed portion is disposed in the accommodating groove, the telescopic portion can extend and retract relative to the fixed portion, the telescopic portion is provided with a first plug-in hole, the axis of the first plug-in hole is perpendicular to the telescopic direction of the telescopic portion, the telescopic portion can extend into the connecting hole when extended, and when the telescopic portion extends into the connecting hole, the first plug-in hole is aligned with the first mounting hole;

[0009] The first plug-in component is arranged in the first mounting hole, and the plug-in end of the first plug-in component can extend into the connecting hole or be retracted from the connecting hole.

[0010] As a preferred technical solution of the battery quick-change mechanism, the first plug-in component is an indexing pin.

[0011] As a preferred technical solution for the battery quick-change mechanism, there are multiple telescopic parts, and the multiple telescopic parts are distributed at intervals on the top of the battery pack.

[0012] As a preferred technical solution of the battery quick-change mechanism, there are multiple first plug-in parts, and the multiple first plug-in parts correspond one-to-one to the multiple telescopic parts.

[0013] As a preferred technical solution for the battery quick-change mechanism, it also includes a plurality of leg assemblies, which are arranged at intervals along the circumference of the battery pack. The leg assemblies include legs and running wheels. The legs are connected to the sides of the battery pack, and the running wheels are arranged on the legs. The running wheels are used to support the battery pack to walk.

[0014] As an optimal technical solution for the battery quick-change mechanism, it also includes a second plug-in piece, a second mounting hole is provided on the leg, the second plug-in piece is arranged in the second mounting hole, and the plug-in end of the second plug-in piece can extend or retract into the second mounting hole; a second plug-in hole is provided on the side of the battery pack, and a third plug-in hole is provided on the side of the battery pack connecting part, and a rotational connection is arranged between the leg and the battery pack, and the leg can be rotated until the second mounting hole is aligned with the second plug-in hole or rotated until the second mounting hole is aligned with the third plug-in hole.

[0015] As a preferred technical solution of the battery quick-change mechanism, the second plug-in member is an indexing pin.

[0016] As a preferred technical solution of the battery quick-change mechanism, there are multiple second plug-in members, and the multiple second plug-in members correspond one-to-one to the multiple legs.

[0017] As a preferred technical solution for the battery quick-change mechanism, the telescopic member is an electric push rod.

[0018] An electric vehicle comprises a vehicle body and a battery quick-change mechanism as described in any of the above schemes, wherein the battery pack connection portion is arranged at the bottom of the vehicle body.

[0019] Beneficial effects of the utility model:

[0020] The battery quick-change mechanism provided by the utility model includes a telescopic member and a first plug-in member. When performing the quick-change process, the battery pack is first transported to the bottom of the battery pack connection part; then the telescopic part of the telescopic member extends and extends into the connection hole at the bottom of the battery pack connection part; then the plug-in end of the first plug-in member is extended into the connection hole and inserted into the first plug-in hole of the telescopic part, so that the telescopic part is fixedly connected to the battery pack connection part; then the telescopic part contracts to make the top of the battery pack fit with the bottom of the battery pack connection part. The whole process does not require the use of tools, and only requires manual plugging and unplugging of the first plug-in member, which is simple to operate and has high replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a structural schematic diagram of an unmanned delivery vehicle provided by an embodiment of the utility model;

[0022] Figure 2 is a schematic diagram of the structure of a battery pack involved in an embodiment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the leg assembly and the second plug-in member involved in the embodiment of the utility model;

[0024] Figure 4 It is a schematic diagram of the battery pack in the embodiment of the utility model, which is pushed to face directly below the battery pack connection portion;

[0025] Figure 5 is a schematic diagram of an embodiment of the utility model in which the telescopic member is extended into the connection hole of the battery pack connection part;

[0026] Figure 6 is a schematic diagram of the top of the battery pack and the bottom of the battery pack connecting portion being fitted together after the telescopic member is retracted in the embodiment of the utility model;

[0027] Figure 7 It is a schematic diagram of the structure in which the supporting legs are fixed to the connecting portion of the battery pack in an embodiment of the present utility model.

[0028] In the figure:

[0029] 10. Vehicle body; 20. Battery pack; 21. Second plug-in hole; 30. Battery pack connection portion; 31. Third plug-in hole; 40. Telescopic member; 41. First plug-in hole; 50. First plug-in member; 60. Leg assembly; 61. Leg; 62. Travel wheel; 70. Second plug-in member; 80. Pin shaft. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] like Figure 1As shown, an embodiment of the utility model provides an electric vehicle, such as an unmanned delivery vehicle, including a vehicle body 10 and a battery quick-change mechanism, the battery quick-change mechanism including a battery pack 20 and a battery pack connecting portion 30, the battery pack connecting portion 30 is arranged at the bottom of the vehicle body 10, the battery pack connecting portion 30 is used to connect the battery pack 20, and the battery pack 20 can provide electrical energy for the unmanned delivery vehicle after being connected to the battery pack connecting portion 30.

[0038] like Figures 1 to 3 As shown, the battery quick-change mechanism also includes a telescopic member 40 and a first plug-in member 50. A receiving groove is provided on the top of the battery pack 20, a connecting hole is provided on the bottom of the battery pack connecting portion 30, and a first mounting hole connected to the connecting hole is provided on the side of the battery pack connecting portion 30; the telescopic member 40 includes a fixed portion and a telescopic portion, the fixed portion is provided in the receiving groove, the telescopic portion can be extended and retracted relative to the fixed portion, and a first plug-in hole 41 is provided on the telescopic portion, the axis of the first plug-in hole 41 is perpendicular to the telescopic direction of the telescopic portion, the telescopic portion can be extended into the connecting hole when extended, and when the telescopic portion is extended into the connecting hole, the first plug-in hole 41 is aligned with the first mounting hole; the first plug-in member 50 is provided in the first mounting hole, and the plug-in end of the first plug-in member 50 can be extended into the connecting hole or retracted from the connecting hole.

[0039] The quick-change process of the battery quick-change mechanism includes: first, the battery pack 20 is transported to the bottom of the battery pack connection portion 30, such as Figure 4 Then the telescopic portion of the telescopic member 40 extends out and extends into the connection hole at the bottom of the battery pack connecting portion 30, as shown Figure 5 As shown; then the plug-in end of the first plug-in member 50 is inserted into the connection hole and inserted into the first plug-in hole 41 of the telescopic portion, so that the telescopic portion is fixedly connected to the battery pack connection portion 30, and continue to refer to Figure 5 ; Then the telescopic portion contracts, so that the top of the battery pack 20 fits with the bottom of the battery pack connecting portion 30, such as Figure 6 shown.

[0040] In this embodiment, the first plug-in member 50 is an indexing pin, and the structure and working principle of the indexing pin are all prior art, which will not be described in detail here. Preferably, the indexing pin can be a pull-ring indexing pin or a handle-type indexing pin, so that the operator can operate it easily. Alternatively, the first plug-in member 50 can also be a quick plug, and the structure and working principle of the quick plug are also prior art, which will not be described in detail here. Of course, the first plug-in member 50 is not limited to this, and any structure that can achieve quick plugging and unplugging can be used.

[0041] Reference Figure 2, the number of telescopic parts 40 is multiple, and the multiple telescopic parts 40 are distributed at intervals on the top of the battery pack 20. Correspondingly, the number of connecting holes at the bottom of the battery pack connecting part 30 is multiple, and the telescopic parts of the multiple telescopic parts 40 extend into the multiple connecting holes one by one. The number of first mounting holes is multiple, and the multiple first mounting holes are connected to the multiple connecting holes one by one. The number of first plug-in parts 50 is multiple, and the multiple first plug-in parts 50 are arranged in the multiple first mounting holes one by one. Through the above arrangement, the connection between the battery pack 20 and the battery pack connecting part 30 can be made stronger. In this embodiment, the number of telescopic parts 40 is four, and the four telescopic parts 40 are distributed at the four corners of the top of the battery pack 20. Alternatively, the number of telescopic parts 40 is two, and the two telescopic parts 40 are distributed at the two diagonal positions of the top of the battery pack 20. Of course, the specific number and arrangement of the telescopic parts 40 are not limited to this, and can be set according to needs. Preferably, the telescopic part 40 is an electric push rod.

[0042] Further, refer to Figure 2 and Figure 3 The battery quick-change mechanism further includes a plurality of leg assemblies 60, which are arranged at intervals along the circumference of the battery pack 20. The leg assemblies 60 include legs 61 and running wheels 62. The legs 61 are connected to the sides of the battery pack 20, and the running wheels 62 are arranged on the legs 61. The running wheels 62 are used to support the battery pack 20 for walking. The battery pack 20 is heavy, and the leg assemblies 60 can be arranged to facilitate the movement of the battery pack 20. When the battery pack 20 is transported to the bottom of the battery pack connection portion 30, the battery pack 20 can be moved by pushing, which is more convenient and labor-saving.

[0043] Further, continue to refer to Figure 2 and Figure 3 The battery quick-change mechanism also includes a second plug-in component 70, a second mounting hole is provided on the leg 61, the second plug-in component 70 is arranged in the second mounting hole, and the plug-in end of the second plug-in component 70 can extend or retract into the second mounting hole; a second plug-in hole 21 is provided on the side of the battery pack 20, and a third plug-in hole 31 is provided on the side of the battery pack connecting portion 30. The leg 61 and the battery pack 20 are arranged to be rotatably connected, and the two can be rotatably connected through a pin shaft 80. The leg 61 can be rotated until the second mounting hole is aligned with the second plug-in hole 21 or rotated until the second mounting hole is aligned with the third plug-in hole 31.

[0044] During the quick-change process of the battery quick-change mechanism, the second mounting hole is aligned with the second plug-in hole 21, the plug-in end of the second plug-in member 70 extends into the second plug-in hole 21, the legs 61 are fixedly connected to the battery pack 20, and the running wheels 62 face downward to support the movement of the battery pack 20. Preferably, the running wheels 62 are universal wheels.

[0045] The quick-change process of the battery quick-change mechanism also includes: after the top of the battery pack 20 is fitted with the bottom of the battery pack connecting portion 30, the plug-in end of the second plug-in member 70 is withdrawn from the second plug-in hole 21 to release the connection between the leg 61 and the battery pack 20; then the leg 61 is rotated to align the second mounting hole with the third plug-in hole 31, and the plug-in end of the second plug-in member 70 is inserted into the third plug-in hole 31 to fix the leg 61 to the battery pack connecting portion 30, as shown in FIG. Figure 7 Through this process, not only can the connection between the battery pack 20 and the battery pack connecting portion 30 be further strengthened, but the supporting leg 61 can also be rotated upward and stored to avoid the supporting leg 61 from hindering the movement of the unmanned delivery vehicle.

[0046] In this embodiment, the second plug-in member 70 is an indexing pin, and the structure and working principle of the indexing pin are all prior art, which will not be described in detail here. Preferably, the indexing pin can be a pull-ring indexing pin or a handle-type indexing pin, so that the operator can operate it easily. Alternatively, the second plug-in member 70 can also be a quick plug, and the structure and working principle of the quick plug are also prior art, which will not be described in detail here. Of course, the second plug-in member 70 is not limited to this, and any structure that can achieve quick plugging and unplugging can be used.

[0047] In this embodiment, there are four leg assemblies 60, which are distributed at four corners of the battery pack 20. Correspondingly, there are four second plug-in members 70, which are arranged on the four legs 61 in a one-to-one correspondence. This arrangement not only enables the battery pack 20 to walk stably, but also makes the connection between the battery packs 20 more secure.

[0048] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A battery quick-change mechanism, characterized in that: include: A battery pack (20) having a receiving slot disposed on the top thereof; A battery pack connection part (30) is arranged on the vehicle body (10), a connection hole is arranged at the bottom of the battery pack connection part (30), and a first mounting hole connected to the connection hole is arranged at the side of the battery pack connection part (30); A telescopic member (40), comprising a fixed portion and a telescopic portion, wherein the fixed portion is arranged in the accommodating groove, the telescopic portion can be extended and retracted relative to the fixed portion, the telescopic portion is provided with a first plug-in hole (41), the axis of the first plug-in hole (41) is perpendicular to the telescopic direction of the telescopic portion, the telescopic portion can be extended into the connecting hole when extended, and when the telescopic portion is extended into the connecting hole, the first plug-in hole (41) is aligned with the first mounting hole; A first plug-in component (50) is arranged in the first mounting hole, and a plug-in end of the first plug-in component (50) can extend into the connection hole or be retracted from the connection hole.

2. The battery quick-change mechanism according to claim 1, characterized in that: The first plug-in component (50) is an indexing pin.

3. The battery quick-change mechanism according to claim 1, characterized in that: There are a plurality of the telescopic members (40), and the plurality of the telescopic members (40) are distributed at intervals on the top of the battery pack (20).

4. The battery quick-change mechanism according to claim 3, characterized in that: There are a plurality of the first plugging components (50), and the plurality of the first plugging components (50) correspond one-to-one to the plurality of the telescopic components (40).

5. The battery quick-change mechanism according to any one of claims 1 to 4, characterized in that: The invention also includes a plurality of leg assemblies (60), wherein the plurality of leg assemblies (60) are arranged at intervals along the circumference of the battery pack (20), and the leg assemblies (60) include legs (61) and running wheels (62), wherein the legs (61) are connected to the side of the battery pack (20), and the running wheels (62) are arranged on the legs (61), and the running wheels (62) are used to support the battery pack (20) to walk.

6. The battery quick-change mechanism according to claim 5, characterized in that: The battery pack (20) further comprises a second plug-in member (70), wherein a second mounting hole is provided on the support leg (61), the second plug-in member (70) is arranged in the second mounting hole, and the plug-in end of the second plug-in member (70) can extend out of or retract into the second mounting hole; a second plug-in hole (21) is provided on the side of the battery pack (20), and a third plug-in hole (31) is provided on the side of the battery pack connecting portion (30); the support leg (61) and the battery pack (20) are arranged to be rotatably connected, and the support leg (61) can be rotated until the second mounting hole is aligned with the second plug-in hole (21) or rotated until the second mounting hole is aligned with the third plug-in hole (31).

7. The battery quick-change mechanism according to claim 6, characterized in that: The second plug-in member (70) is an indexing pin.

8. The battery quick-change mechanism according to claim 6, characterized in that: There are a plurality of the second plugging members (70), and the plurality of the second plugging members (70) correspond one-to-one to the plurality of the supporting legs (61).

9. The battery quick-change mechanism according to any one of claims 1 to 4, characterized in that: The telescopic member (40) is an electric push rod.

10. An electric vehicle, characterized in that: It comprises a vehicle body (10) and a battery quick-change mechanism as claimed in any one of claims 1 to 9, wherein the battery pack connecting portion (30) is arranged at the bottom of the vehicle body (10).

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