WO2024021623A1 - Connection structure and electric vehicle - Google Patents

Abstract

A connection structure and an electric vehicle. The connection structure comprises a battery mounting seat (100), a battery (200) and a sealing member (300). The battery mounting seat (100) comprises an accommodating cavity (102) having an opening (101), the battery (200) being placed into the accommodating cavity (102) from the opening (101), a first inner wall surface (1021) of the accommodating cavity (102) being provided with a power supply connector (103), and a first outer surface (201) of the battery (200) being provided with a power supply interface (202) matching the power supply connector (103). The first outer surface (201) is provided with a round sealing groove (2011), the sealing groove (2011) being disposed around the power supply interface (202), the sealing member (300) being disposed in the sealing groove (2011), and the sealing member (300) being exposed out of the first outer surface (201) from a notch of the sealing groove (2011) and abutting against the first inner wall surface (1021). The sealing member (300) can seal the power supply connector (103) and the power supply interface (202) which are electrically connected, and there is no need to additionally connect a waterproof wire, so that the space occupied by the battery installation is reduced; in addition, by means of the power supply connector (103) and the power supply interface (202), quick removal and quick insertion can be implemented, making use convenient.

Description

Connection structure and electric vehicle

This application claims priority to the PCT international application with the filing date of July 25, 2022, the application number is PCT/CN2022/107614, and the application title is "Connection Structure and Electric Vehicle", the entire content of which is incorporated into this application by reference. .

Technical field

The present application relates to the technical field of electric vehicles, and in particular to a connection structure and an electric vehicle.

Background technique

Electric vehicles are generally powered by batteries, which are charged when the vehicle is parked and discharged when the vehicle is running. When electric vehicles are driven or parked outdoors, the battery needs to be waterproof and dustproof to avoid potential safety hazards.

In related technology, the battery component of an electric vehicle includes an electrically connected battery and a waterproof charging cable. When installing the battery component into the battery installation space of the electric vehicle, first connect the waterproof charging cable to the charging interface in the battery installation space, and then place the battery. in the battery installation space. However, waterproof charging cables occupy the battery installation space of electric vehicles.

Contents of the invention

In view of the above problems, embodiments of the present application provide a connection structure and an electric vehicle, which seal the electrically connected power connector and power supply interface through a seal, thereby reducing the installation space of the battery; and the power connector and power supply interface are sealed The interface can be quickly unplugged and plugged in, making it easy to use.

In order to achieve the above objectives, the embodiments of this application provide the following technical solutions:

The first aspect of the embodiment of the present application provides a connection structure, which includes a battery mounting base, a battery and a sealing member; the battery mounting base includes a receiving cavity with an opening, and the battery is placed in the container from the opening. Placed in the cavity, the first inner wall of the accommodation cavity is provided with a power connector, and the first outer surface of the battery is provided with a power supply interface that matches the power connector; the first outer surface A ring of sealing groove is provided, the sealing groove is arranged around the power supply interface, the sealing member is disposed in the sealing groove, and the sealing member is exposed from the notch of the sealing groove to the first outer surface. , and contacts the first inner wall surface.

In a possible implementation, the connection structure further includes a locking mechanism, and the locking mechanism includes a connection groove and a lock catch; the connection groove is provided on the third outer surface of the battery, and the third The outer surface intersects the first outer surface; one end of the lock catch is rotatably connected to the opening of the battery mounting base, and the other end of the lock catch matches the connection groove.

In a possible implementation, the lock includes a lock body and a buckle matching the connection groove; the lock body is rotationally connected to the opening of the battery mounting base, so One end of the buckle is connected to the lock body, the other end of the buckle extends away from the lock body, and the other end of the buckle extends toward the first outer surface.

In a possible implementation, the battery has a fourth outer surface opposite to the third outer surface, the fourth outer surface intersects the first outer surface, and the connecting groove is provided on the Fourth outer surface.

In a possible implementation, the connection structure further includes a positioning mechanism, the positioning mechanism includes a positioning piece and a positioning groove matching the positioning piece; the positioning piece is arranged in the accommodation cavity. , described content The cavity also includes a second inner wall surface, the second inner wall surface intersects the first inner wall surface, and the positioning member is connected to both the first inner wall surface and the second inner wall surface; the positioning groove is provided on the third outer surface.

In a possible implementation, the accommodation cavity further includes a fourth inner wall surface, the fourth inner wall surface is opposite to the second inner wall surface, and the fourth inner wall surface is in contact with the first inner wall surface. Intersect; the positioning member is connected to both the first inner wall surface and the fourth inner wall surface, and the positioning groove is provided on the fourth outer surface.

In a possible implementation, the accommodation cavity further includes a third inner wall surface, a fifth inner wall surface and a sixth inner wall surface, the third inner wall surface is opposite to the second inner wall surface, and the fifth inner wall surface The inner wall surface is opposite to the third inner wall surface, and the sixth inner wall surface is opposite to the first inner wall surface; the opening includes a first opening and a second opening, and the first opening and the second opening are connected. , and the sixth inner wall surface coincides with the first opening, and the fifth inner wall surface coincides with the second opening; the battery is placed in the accommodation cavity from the first opening, and part of the The battery protrudes from the second opening outside the accommodation cavity; the connection structure also includes a support plate, the support plate is parallel to the first inner wall, and one end of the support plate is in contact with the first The inner wall surface is connected at a position close to the second opening, and the other end of the support plate extends away from the accommodation cavity; a portion of the battery protruding out of the accommodation cavity is placed on the support plate.

In a possible implementation, the power supply interface includes a high-current plug connector female socket, and the power plug connector includes a high-current plug connector male socket.

In a possible implementation, the battery further has a charging interface, and the charging interface is used to connect to an external power supply.

A second aspect of the embodiments of the present application provides an electric vehicle, which includes the connection structure explained above.

In a possible implementation, the electric vehicle includes an electric wheelchair.

In the connection structure and electric vehicle provided by the embodiment of the present application, the battery mounting base of the connection structure includes an accommodation cavity with an opening, and the battery is placed in the accommodation cavity from the opening; the accommodation cavity has a first inner wall surface, and the battery has a first outer wall surface. surface, the first inner wall surface is in contact with the first outer surface; the first inner wall surface is also provided with a power plug connector, and the first outer surface is provided with a power supply interface matching the power plug connector; the first outer surface is also provided with a The sealing groove is arranged around the power supply interface, the sealing element is arranged in the sealing groove, and the sealing element is exposed from the notch of the sealing groove to the first outer surface. The sealing member of this connection structure is used to seal the power connector and the power supply interface after electrical connection to prevent dust, water stains, etc. from affecting the connection of the power connector and the power supply interface. There is no need to connect additional waterproof wires, and the battery is reduced in size. The space occupied by the installation is small; the power connector and the power supply interface can be quickly disconnected and plugged in, which is convenient to use; and the connection between the power connector and the power supply interface is firm and reliable, avoiding poor contact and easy loosening. 's appearance.

Description of drawings

In order to more clearly explain the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of a battery provided by an embodiment of the present application;

Figure 2 is an exploded view of the battery provided by the embodiment of the present application;

Figure 3 is a schematic structural diagram of the battery mounting base provided by the embodiment of the present application;

Figure 4 is a second structural schematic diagram of the battery mounting base provided by the embodiment of the present application;

Figure 5 is a schematic diagram 1 of the connection between the battery and the battery mounting base provided by the embodiment of the present application;

Figure 6 is a schematic diagram 2 of the connection between the battery and the battery mounting base provided by the embodiment of the present application;

Figure 7 is a schematic structural diagram of the bottom case of the battery provided by the embodiment of the present application;

Figure 8 is a schematic structural diagram of a buckle provided by an embodiment of the present application.

Explanation of reference symbols:
100: Battery mounting base;
101: Opening; 102: Accommodation cavity; 103: Power connector; 104: Positioning piece; 105: Connecting piece;
1011: first opening; 1012: second opening; 1021: first inner wall surface; 1022: second inner wall surface; 1023:
Third inner wall surface; 2011: sealing groove; 2012: third mounting hole; 2013: first mounting hole;
200: battery;
201: First outer surface; 202: Power supply interface; 203: Second outer surface; 204: Connection slot; 205: Positioning slot; 206: Charging interface; 207: Third outer surface; 210: Upper cover; 220: Bottom case ; 230: Battery body; 231: Outer wall; 232: Accommodation tank;
2041: Avoidance slot; 2042: Snap-in slot;
300: seal;
400: lock;
401: lock body; 402: buckle; 403: rotating buckle;
500: Support plate.

Detailed ways

As explained in the background art, the battery components of electric vehicles in the related art have the problem of occupying the battery installation space of the electric vehicle. After research by technicians, it is found that the reason for this problem is that the waterproof charging cable can effectively prevent rainwater from damaging the electric vehicle battery. However, the waterproof charging cable not only occupies the battery installation space, resulting in a larger installation space for the electric vehicle battery; the waterproof charging cable cannot be quickly disconnected and plugged in.

In view of the above technical problems, embodiments of the present application provide a connection structure. By arranging a sealing member at the insertion point of the battery mounting base and the battery, the sealing member can seal the electrically connected power plug connector and power supply interface. It prevents dust, water stains, etc. from affecting the connection between the power connector and the power supply interface. There is no need to connect additional waterproof wires, which reduces the space occupied by the battery. The power connector and power supply interface can be quickly disconnected and plugged in, making it easy to use; and The battery is fixed through the locking mechanism and provides continuous and stable pressure to the seal to compress the seal and improve the connection reliability and sealing effect of the power connector and power supply interface.

In order to make the above purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without any creative work shall fall within the scope of protection of this application.

The embodiment of the present application provides a connection structure. Refer to Figures 1-3. Figure 1 is a schematic structural diagram of a battery, Figure 2 is an exploded view of the battery, and Figure 3 is a schematic structural diagram of a battery mounting base. The connection structure includes a battery. The mounting base 100 and the battery 200. The battery mounting base 100 is arranged on the device to be powered. The battery mounting base 100 includes an accommodation cavity 102 with an opening 101. The accommodation cavity 102 matches the battery 200. The battery 200 is placed in the container from the opening 101. into the cavity 102 to assemble the battery 200 on the battery mounting base 100 .

The accommodating cavity 102 has a first inner wall surface 1021, and the battery 200 has a first outer surface 201. When the battery 200 is placed in the accommodating cavity 102, the first inner wall surface 1021 is in contact with the first outer surface 201; the first inner wall surface 1021 is provided with a power supply connector 103, which protrudes from the first inner wall surface 1021; the first outer surface 201 is provided with a power supply interface 202 matching the power supply connector 103, and the power supply connector 103 is plugged into the first inner wall surface 1021. It is connected to the power supply interface 202 to realize the power supply of the battery 200 to the device to be powered.

The connection structure also includes a sealing member 300. The first outer surface 201 is provided with a ring of sealing groove 2011. The sealing groove 2011 is provided around the power supply interface 202. The sealing member 300 is disposed in the sealing groove 2011, and the sealing member 300 self-seales the groove 2011. The opening is exposed to the first outer surface 201; when the first inner wall surface 1021 is in contact with the first outer surface 201, the seal 300 exposed to the first outer surface 201 will abut against the first inner wall surface 1021 to electrically connect The rear power plug connector 103 and power supply interface 202 are sealed.

Therefore, in the connection structure of the embodiment of the present application, the battery mounting base 100 includes an accommodating cavity 102 with an opening 101, and the battery 200 is placed in the accommodating cavity 102 from the opening 101; the accommodating cavity 102 has a first inner wall surface 1021, and the battery 200 has a first outer surface 201, and a first inner wall surface 1021 is in contact with the first outer surface 201; a power plug connector 103 is also provided on the first inner wall surface 1021, and a power plug connector 103 is provided on the first outer surface 201. Matching power supply interface 202; the first outer surface 201 is also provided with a ring of sealing groove 2011, the sealing groove 2011 is provided around the power supply interface 202, the sealing member 300 is provided in the sealing groove 2011, and the sealing member 300 is self-sealing from the notch of the sealing groove 2011 Exposed to first outer surface 201. The seal 300 of the connection structure is used to seal the electrically connected power connector 103 and the power supply interface 202 to prevent dust, water stains, etc. from affecting the connection between the power connector 103 and the power supply interface 202. There is no need to connect additional waterproof wires. , reducing the space occupied by the installation of the battery 200; the power connector 103 and the power supply interface 202 can be quickly disconnected and plugged in, which is convenient to use; and the connection between the power connector 103 and the power supply interface 202 is firm and has high reliability. , to avoid situations such as poor contact and easy loosening.

The seal 300 may include a rubber sealing ring, and the rubber sealing ring may be a circular sealing ring, a rectangular sealing ring, an oval sealing ring, etc.

It should be noted that the battery 200 includes an upper cover 210, a bottom case 220, and a battery body 230. The upper cover 210 and the bottom case 220 match and are jointly connected to form a case for accommodating the battery body 230; the bottom case 220 includes The first outer surface 201 has a first mounting hole 2013; the battery body 230 has an outer wall 231, and an accommodating groove 232 is provided on the outer wall 231. A power supply interface 202 is provided in the accommodating groove 232. The power supply interface 202 is exposed to the first outer surface 201 through the first mounting hole 2013 to be plugged into the power plug connector 103 .

In the embodiment of the present application, the power supply interface 202 may include a high-current plug connector female socket, and the power plug connector 103 may include a high-current plug connector male socket to achieve high-current charging.

In the embodiment of the present application, the battery 200 also has a charging interface 206, which is used to connect to an external power supply, so that the external power supply can charge the battery 200.

The battery 200 also has a second outer surface 203. The second outer surface 203 is arranged opposite to the first outer surface 201 (that is, the second outer surface 203 is arranged on the upper cover 210). The second outer surface 203 has a third outer surface 203. Two mounting holes, the charging interface 206 is exposed to the second outer surface 203 through the second mounting hole; when the battery 200 is installed in the battery mounting base 100, the external power supply can also directly charge the battery 200 without disassembling the battery 200.

In addition, the first outer surface 201 also has a third mounting hole 2012. The third mounting hole 2012 is different from the first mounting hole. 2013 are arranged at intervals, and the third mounting hole 2012 and the first mounting hole 2013 are both located in the sealing groove 2011. That is to say, the sealing groove 2011 is arranged around the third mounting hole 2012 and the first mounting hole 2013; the charging interface 206 is placed on the battery body. 230, the charging interface 206 is exposed to the first outer surface 201 through the third mounting hole 2012; so that the seal 300 of the embodiment of the present application can simultaneously seal the power supply interface 202 and the charging interface 206.

In the above-mentioned embodiment of the present application, the charging interface 206 may be a male charging socket, which can be plugged into an external charging female socket, so that the external power source can charge the battery 200 .

It should also be noted that the charging interface 206 can also be provided on other outer surfaces of the battery 200 according to actual conditions, which is no longer limited here.

Please refer to Figures 4 to 6. Figure 4 is a schematic diagram 2 of the structure of the battery mounting base. Figure 5 is a schematic diagram 1 of the connection between the battery and the battery mounting base. Figure 6 is a schematic diagram 2 of the connection between the battery and the battery mounting base. In the embodiment of the present application , the accommodating cavity 102 also includes a second inner wall surface 1022, a third inner wall surface 1023, a fourth inner wall surface, a fifth inner wall surface and a sixth inner wall surface. The second inner wall surface 1022 and the third inner wall surface 1023 intersect each other, and the The second inner wall surface 1022 and the third inner wall surface 1023 both intersect with the first inner wall surface 1021; the fourth inner wall surface is opposite to the second inner wall surface 1022, and the fourth inner wall surface intersects with both the third inner wall surface 1023 and the first inner wall surface 1021 ; The fifth inner wall surface is opposite to the third inner wall surface 1023, and the sixth inner wall surface is opposite to the first inner wall surface 1021. The first inner wall surface 1021 , the second inner wall surface 1022 , the third inner wall surface 1023 , the fourth inner wall surface, the fifth inner wall surface, and the sixth inner wall surface collectively surround the accommodation cavity 102 .

The opening 101 includes a first opening 1011 and a second opening 1012. The first opening 1011 and the second opening 1012 are connected, and the sixth inner wall surface coincides with the first opening 1011, and the fifth inner wall surface coincides with the second opening 1012; battery 200 The battery 200 is placed in the accommodation cavity 102 from the first opening 1011 , and part of the battery 200 protrudes out of the accommodation cavity 102 from the second opening 1012 .

In the above embodiment of the present application, the connection structure may also include a support plate 500, which is parallel to the first inner wall surface 1021, and one end of the support plate 500 is connected to the first inner wall surface 1021 close to the second opening 1012. The other end of the plate 500 extends away from the accommodation cavity 102; some batteries 200 arranged outside the accommodation cavity 102 are placed on the support plate 500 to provide support for the batteries 200.

In the above embodiment of the present application, the connection structure may also include a locking mechanism; the locking mechanism includes a connecting groove 204 and a lock 400. The connecting groove 204 is provided on the second outer surface 203, and one end of the lock 400 is rotatably connected to The opening 101 of the battery mounting base 100, and one end of the lock 400 is rotationally connected to the first opening 1011, and the other end of the lock 400 matches the connection groove 204; after the battery 200 is assembled on the battery mounting base 100, it is locked The mechanism is used to fix the battery 200 and prevent the battery 200 from shaking.

In the above-mentioned embodiment of the present application, a connector 105 is provided at the first opening 1011 , and one end of the lock 400 is rotationally connected to the connector 105 so that the other end of the lock 400 can be close to or away from the connection groove 204 .

In the above-mentioned embodiments of the present application, the connection structure may also include a locking mechanism; wherein, the battery 200 also has a third outer surface 207, and the third outer surface 207 intersects the first outer surface 201 (that is, the third outer surface 207 intersects with the first outer surface 201) Surface 207 is provided on the bottom case 220), the locking mechanism includes a connecting groove 204 and a lock 400. The connecting groove 204 is provided on the third outer surface 207, and one end of the lock 400 is rotationally connected to the opening 101 of the battery mounting base 100. , and one end of the lock 400 is rotatably connected to the second opening 1012, and the other end of the lock 400 matches the connection groove 204; electrically After the battery 200 is assembled on the battery mounting base 100, the locking mechanism can fix the battery 200 to prevent the battery 200 from shaking and ensure reliable connection between the power connector 103 and the power supply interface 202; at the same time, the lock 400 provides a continuous supply for the bottom case 220. The stable pressure causes the first outer surface 201 of the bottom shell 220 to squeeze the first inner wall surface 1021 of the accommodation cavity 102, thereby causing the seal 300 to be squeezed, thereby improving the sealing effect of the seal 300.

In the above-mentioned embodiment of the present application, a connector 105 is provided at the second opening 1012 , and one end of the lock 400 is rotationally connected to the connector 105 so that the other end of the lock 400 can be close to or away from the connection groove 204 .

In the above-mentioned embodiment of the present application, the locking mechanism may include two, and the two locking mechanisms are arranged oppositely; wherein, the connecting groove 204 includes two, the lock 400 includes two, and the battery 200 also has a third outer surface. 207 opposite fourth outer surface, the fourth outer surface intersects the first outer surface 201, a connecting groove 204 is provided on the third outer surface 207, and the other connecting groove 204 is provided on the fourth outer surface; two locking mechanisms The battery 200 can be further fixed; at the same time, the two opposite locks 400 provide a continuous, stable and balanced pressure for the bottom case 220, ensuring that different positions of the seal 300 receive a balanced extrusion force.

Please refer to Figures 7 and 8. Figure 7 is a schematic structural diagram of the bottom case of the battery, and Figure 8 is a schematic structural diagram of the buckle. In the embodiment of the present application, the connection groove 204 includes an escape groove 2041 and a snap-in groove 2042. The escape groove 2041 It is spaced apart from the snap-in groove 2042, the relief groove 2041 matches the connector 105, and the connector 105 is placed in the relief groove 2041 with a clearance fit. The lock 400 includes a lock body 401, a buckle 402, and a rotating buckle 403. The buckle 402 and the rotating buckle 403 are both arranged on the lock body 401. The buckle 402 matches the snapping groove 2042, and the rotating buckle 403 is rotationally connected. On the connecting piece 105, the rotating buckle 403 can rotate around the connecting piece 105 and drive the buckle 402 to approach or move away from the buckling groove 2042.

One end of the buckle 402 is connected to the lock body 401, the other end of the buckle 402 extends away from the lock body 401, and the other end of the buckle 402 extends toward the first outer surface 201, so that the buckle 402 and the lock buckle There is a certain angle between the bodies 401; that is to say, the buckle 402 is inclined relative to the lock body 401 and tilts downward toward the notch of the buckle groove 2042; when the buckle 402 is buckled in the buckle groove 2042 , the buckle 402 can provide continuous and stable pressure for the bottom case 220, so that the bottom case 220 presses the seal 300, improving the sealing effect of the seal 300; while ensuring the connection reliability of the power plug connector 103 and the power supply interface 202.

Please continue to refer to Figures 1, 4 and 7. The connection structure can also include a positioning mechanism. The positioning mechanism includes a positioning piece 104 and a positioning groove 205 matching the positioning piece 104; the positioning piece 104 is arranged in the accommodation cavity 102. The positioning member 104 includes a first outer end surface and a second outer end surface, the first outer end surface and the second outer end surface intersect; the first outer end surface is connected to the second inner wall surface 1022, and the second outer end surface is connected to the first inner wall surface 1021; also That is to say, the positioning member 104 is attached to the first inner wall surface 1021 and the second inner wall surface 1022 at the same time, and extends toward the accommodation cavity 102 .

The positioning groove 205 is provided on the third outer surface 207 of the battery 200. When the battery 200 is placed in the accommodation cavity 102 from the opening 101, the positioning member 104 is embedded in the positioning groove 205 to ensure that the battery 200 can be assembled in place; at the same time, the power supply is prevented from being plugged in. The connector 103 and the power supply interface 202 are offset when plugged in, which not only facilitates installation, but also further improves the stability of the connection between the battery 200 and the battery mounting base 100 .

Among them, the positioning groove 205 can be disposed close to the connection groove 204, so that the appearance of the battery 200 is more beautiful.

In the above embodiment of the present application, the positioning mechanism may include two, and the two positioning mechanisms are arranged oppositely; wherein, the positioning groove 205 includes two, the positioning member 104 includes two, and the battery 200 also has a third outer surface 207 On the opposite fourth outer surface, the fourth outer surface intersects the first outer surface 201. One positioning groove 205 is provided on the third outer surface 207, and another positioning groove 205 is provided on the fourth outer surface; a positioning member 104 is attached to the fourth outer surface at the same time. Attached to the first inner wall surface 1021 and the second inner wall surface 1022, and extending toward the accommodation cavity 102, the other positioning member 104 is attached to the first inner wall surface 1021 and the fourth inner wall surface at the same time, and extends toward the accommodation cavity. 102 extends inward, and two positioning members 104 are arranged oppositely; the two positioning mechanisms can further ensure that the battery 200 is assembled in place from two directions.

An embodiment of the present application also provides an electric vehicle, which includes a connection structure.

Among them, electric vehicles are vehicles that use batteries as the energy source and convert electrical energy into mechanical energy for movement through controllers, motors and other components to control the size of the current and change the speed. Electric vehicles can include electric cars, electric motorcycles, electric bicycles, electric unicycles, electric tricycles, electric scooters, electric surfing cars, electric folding cars, electric rail cars, electric balance cars, and electric wheelchairs (also known as electric wheelchairs) wait.

Electric wheelchairs are modified and upgraded based on traditional manual wheelchairs by adding high-performance power drive devices, intelligent control devices, batteries and other components.

The connection structure provided by the embodiment of the present application can be applied to electric wheelchairs and other electric vehicles.

In summary, embodiments of the present application provide a connection structure and an electric vehicle. The battery mounting base 100 of the connection structure includes an accommodation cavity 102 with an opening 101, and the battery 200 is placed in the accommodation cavity 102 from the opening 101; The accommodating cavity 102 has a first inner wall surface 1021, and the battery 200 has a first outer surface 201. The first inner wall surface 1021 is in contact with the first outer surface 201; a power plug connector 103 is also provided on the first inner wall surface 1021. An outer surface 201 is provided with a power supply interface 202 that matches the power connector 103; the first outer surface 201 is also provided with a ring of sealing groove 2011. The sealing groove 2011 is arranged around the power supply interface 202, and the sealing member 300 is provided in the sealing groove 2011. , and the sealing member 300 is exposed to the first outer surface 201 from the notch of the sealing groove 2011 . The seal 300 of the connection structure is used to seal the electrically connected power connector 103 and the power supply interface 202 to prevent dust, water stains, etc. from affecting the connection between the power connector 103 and the power supply interface 202. There is no need to connect additional waterproof wires. , reducing the space occupied by the installation of the battery 200; the power connector 103 and the power supply interface 202 can be quickly disconnected and plugged in, which is convenient to use; and the connection between the power connector 103 and the power supply interface 202 is firm and has high reliability. , to avoid situations such as poor contact and easy loosening.

Each embodiment or implementation mode in this specification is described in a progressive manner. Each embodiment focuses on its differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other.

It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. mean that the described embodiments may include specific features, structures or characteristics, but not necessarily Each embodiment includes this particular feature, structure, or characteristic. Furthermore, such phrases are not necessarily referring to the same embodiment. Furthermore, where a particular feature, structure or characteristic is described in connection with an embodiment, it is within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments, explicitly or not explicitly described.

Generally speaking, terms should be understood, at least in part, by context of use. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in the singular, or may be used to describe a combination of features, structures, or characteristics in the plural, depending at least in part on context. . Similarly, terms such as "a" or "the" may also be understood to convey a singular usage or convey a plural usage, depending at least in part on the context. Number usage.

It should be readily understood that "on," "over," and "over" in this disclosure should be interpreted in the broadest manner, so that "on" does not only mean " "directly on something" also includes the meaning of "on something" with intermediate features or layers in between, and "on..." or "on..." not only includes "on something" or "on something" The meaning of "on" may also include the meaning of "over" or "over" something without intervening features or layers (i.e., directly on something).

In addition, spatially relative terms may be used herein for ease of explanation, such as "below," "below," "below," "above," "above," etc., to describe the relative position of one element or feature to other elements or features. relationship shown. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation illustrated in the figures. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present application. scope.

Claims (11)

1. A connection structure, characterized by including a battery mounting base, a battery and a seal;

   The battery mounting base includes an accommodation cavity with an opening. The battery is placed in the accommodation cavity from the opening. A power plug connector is provided on the first inner wall of the accommodation cavity. The first outer surface is provided with a power supply interface matching the power plug connector;

   The first outer surface is provided with a ring of sealing groove, the sealing groove is provided around the power supply interface, the sealing member is disposed in the sealing groove, and the sealing member is exposed from the notch of the sealing groove to The first outer surface is in contact with the first inner wall surface.
2. The connection structure according to claim 1, characterized in that the connection structure further includes a locking mechanism, and the locking mechanism includes a connecting groove and a lock;

   The connecting groove is provided on a third outer surface of the battery, and the third outer surface intersects with the first outer surface;

   One end of the lock catch is rotatably connected to the opening of the battery mounting base, and the other end of the lock catch matches the connection groove.
3. The connection structure according to claim 2, wherein the lock catch includes a lock catch body and a buckle matching the connection groove;

   The lock body is rotatably connected to the opening of the battery mounting base, one end of the buckle is connected to the lock body, the other end of the buckle extends away from the lock body, and The other end of the buckle extends toward the first outer surface.
4. The connection structure according to claim 2, wherein the battery has a fourth outer surface opposite to the third outer surface, the fourth outer surface intersects the first outer surface, and the connection Grooves are provided on the fourth outer surface.
5. The connection structure according to claim 4, characterized in that the connection structure further includes a positioning mechanism, the positioning mechanism includes a positioning piece and a positioning groove matching the positioning piece;

   The positioning member is arranged in the accommodating cavity. The accommodating cavity also includes a second inner wall surface, the second inner wall surface intersects the first inner wall surface, and the positioning member and the first inner wall surface intersect. The wall surface and the second inner wall surface are both connected;

   The positioning groove is provided on the third outer surface.
6. The connection structure according to claim 5, characterized in that the accommodation cavity further includes a fourth inner wall surface, the fourth inner wall surface is opposite to the second inner wall surface, and the fourth inner wall surface is in contact with the second inner wall surface. The first inner wall surfaces intersect;

   The positioning member is connected to both the first inner wall surface and the fourth inner wall surface, and the positioning groove is provided on the fourth outer surface.
7. The connection structure according to claim 5, wherein the accommodation cavity further includes a third inner wall surface, a fifth inner wall surface and a sixth inner wall surface, and the third inner wall surface is opposite to the second inner wall surface. , the fifth inner wall surface is opposite to the third inner wall surface, and the sixth inner wall surface is opposite to the first inner wall surface;

   The opening includes a first opening and a second opening, the first opening and the second opening are connected, and the sixth inner wall surface coincides with the first opening, and the fifth inner wall surface and the second opening Overlap; the battery is placed in the accommodation cavity from the first opening, and part of the battery protrudes out of the accommodation cavity from the second opening;

   The connection structure also includes a support plate, which is parallel to the first inner wall. One end of the support plate is connected to a position on the first inner wall close to the second opening. The support plate the other end deviates from the The accommodating cavity extends; a portion of the battery protruding out of the accommodating cavity is placed on the support plate.
8. The connection structure according to claim 1, wherein the power supply interface includes a high-current plug connector female socket, and the power plug connector includes a high-current plug connector male socket.
9. The connection structure according to claim 1, wherein the battery further has a charging interface, and the charging interface is used to connect to an external power supply.
10. An electric vehicle, characterized by including the connection structure according to any one of claims 1-9.
11. The electric vehicle according to claim 10, characterized in that the electric vehicle includes an electric wheelchair.